GenomeTools C API

This document describes the GenomeTools C API (that is, all public interfaces which are part of libgenometools).

See the index for an alphabetical list of all available interfaces.

Classes

Modules

Sole functions

GtNodeStream* gt_dup_feature_stream_new(GtNodeStream*, const char *dest_type, const char *source_type)

Duplicate internal feature nodes of type source_type as features with type dest_type. The duplicated features does not inherit the children.


void GtTrackSelectorFunc(GtBlock*, GtStr*, void*)

A GtTrackSelectorFunc is a callback function which sets a GtStr to a string to be used as a track identifier for assignment of a GtBlock to a given track.


int GtTrackOrderingFunc(const char *s1, const char *s2, void *data)

A function describing the order of tracks based on their track identifier strings s1 and s2. Must return a negative value if the track with ID s1 should appear before the track with ID s2 and a positive value if s1 should appear after s2. Returning a value of 0 will result in an undefined ordering of s1 and s2.


Class GtAddIntronsStream

Implements the GtNodeStream interface. A GtAddIntronsStream inserts new feature nodes with type intron between existing feature nodes with type exon. This is a special case of the GtInterFeatureStream.


GtNodeStream* gt_add_introns_stream_new(GtNodeStream *in_stream)

Create a GtAddIntronsStream* which inserts feature nodes of type intron between feature nodes of type exon it retrieves from in_stream and returns them.


Class GtAlphabet

The following type is for storing alphabets.


GtAlphabet* gt_alphabet_new_dna(void)

Return a GtAlphabet object which represents a DNA alphabet.


GtAlphabet* gt_alphabet_new_protein(void)

Return a GtAlphabet object which represents a protein alphabet.


GtAlphabet* gt_alphabet_new_empty(void)

Return an empty GtAlphabet object.


GtAlphabet* gt_alphabet_new_from_file(const char *filename, GtError *err)

Return a GtAlphabet object, as read from an .al1 file specified by filename (i.e. no al1 suffix necessary).


GtAlphabet* gt_alphabet_new_from_file_no_suffix(const char *filename, GtError *err)

Return a GtAlphabet object, as read from a file specified by filename.


GtAlphabet* gt_alphabet_new_from_string(const char *alphadef, GtUword len, GtError *err)

Return a GtAlphabet object, as read from a string of length len specified by alphadef.


GtAlphabet* gt_alphabet_new_from_sequence(const GtStrArray *filenametab, GtError *err)

Returns a new GtAlphabet object by scanning the sequence files in filenametab to determine whether they are DNA or protein sequences, and the appropriate alphabet will be used (see gt_alphabet_guess()). Returns NULL on error, see err for details.


GtAlphabet* gt_alphabet_guess(const char *sequence, GtUword seqlen)

Try to guess which type the given sequence with length has (DNA or protein) and return an according GtAlphabet* object.


GtAlphabet* gt_alphabet_clone(const GtAlphabet *alphabet)

Return a clone of alphabet.


bool gt_alphabet_equals(const GtAlphabet *a, const GtAlphabet *b)

Returns TRUE if a and b are equal (i.e. have the same symbol mapping), FALSE otherwise.


GtAlphabet* gt_alphabet_ref(GtAlphabet *alphabet)

Increase the reference count for alphabet and return it.


void gt_alphabet_add_mapping(GtAlphabet *alphabet, const char *characters)

Add the mapping of all given characters to the given alphabet. The first character is the result of subsequent gt_alphabet_decode() calls.


void gt_alphabet_add_wildcard(GtAlphabet *alphabet, char wildcard)

Add wildcard to the alphabet.


const GtUchar* gt_alphabet_symbolmap(const GtAlphabet *alphabet)

Returns the array of symbols from alphabet such that the index of the character equals its encoding.


unsigned int gt_alphabet_num_of_chars(const GtAlphabet *alphabet)

Returns number of characters in alphabet (excluding wildcards).


unsigned int gt_alphabet_size(const GtAlphabet *alphabet)

Returns number of characters in alphabet (including wildcards).


const GtUchar* gt_alphabet_characters(const GtAlphabet *alphabet)

Returns an array of the characters in alphabet.


GtUchar gt_alphabet_wildcard_show(const GtAlphabet *alphabet)

Returns the character used in alphabet to represent wildcards in output.


unsigned int gt_alphabet_bits_per_symbol(const GtAlphabet *alphabet)

Returns the required number of bits required to represent a symbol in alphabet.


void gt_alphabet_output(const GtAlphabet *alphabet, FILE *fpout)

Writes a representation of alphabet to the file pointer fpout.


int gt_alphabet_to_file(const GtAlphabet *alphabet, const char *indexname, GtError *err)

Writes a representation of alphabet to the .al1 output file as specified by indexname (i.e. without the .al1 suffix).


void gt_alphabet_to_str(const GtAlphabet *alphabet, GtStr *dest)

Writes a representation of alphabet to the GtStr as specified by dest.


GtUchar gt_alphabet_pretty_symbol(const GtAlphabet *alphabet, unsigned int currentchar)

Returns the printable character specified in alphabet for currentchar.


void gt_alphabet_echo_pretty_symbol(const GtAlphabet *alphabet, FILE *fpout, GtUchar currentchar)

Prints the printable character specified in alphabet for currentchar on fpout.


bool gt_alphabet_is_protein(const GtAlphabet *alphabet)

The following method checks if the given alphabet is the protein alphabet with the aminoacids A, C, D, E, F, G, H, I, K, L, M, N, P, Q, R, S, T, V, W, Y written in lower or upper case and returns true, if this is the case (false otherwise).


bool gt_alphabet_is_dna(const GtAlphabet *alphabet)

The following method checks if the given alphabet is the DNA alphabet with the bases A, C, G, T written in lower or upper case and returns true, if this is the case (false otherwise).


bool gt_alphabet_valid_input(const GtAlphabet *alphabet, char c)

Returns true if the character c is defined in alphabet.


GtUchar gt_alphabet_encode(const GtAlphabet *alphabet, char c)

Encode character c with given alphabet. Ensure that c is encodable with the given alphabet!


char gt_alphabet_decode(const GtAlphabet *alphabet, GtUchar c)

Decode character c with given alphabet.


void gt_alphabet_encode_seq(const GtAlphabet *alphabet, GtUchar *out, const char *in, GtUword length)

Encode sequence in of given length with alphabet and store the result in out. in has to be encodable with the given alphabet!


void gt_alphabet_decode_seq_to_fp(const GtAlphabet *alphabet, FILE *fpout, const GtUchar *src, GtUword len)

Suppose the string src of length len was transformed according to the alphabet. The following method shows each character in src as the printable character specified in the transformation. The output is written to the given file pointer fpout.


void gt_alphabet_decode_seq_to_cstr(const GtAlphabet *alphabet, char *dest, const GtUchar *src, GtUword len)

Suppose the string src of length len was transformed according to the alphabet. The following method shows each character in src as the printable character specified in the transformation. The output is written to the given string dest and terminated with '\0' at dest[len]. dest therefore has to be of at least len + 1 length.


GtStr* gt_alphabet_decode_seq_to_str(const GtAlphabet *alphabet, const GtUchar *src, GtUword len)

Analog to gt_alphabet_decode_seq_to_fp() writing the output to a new GtStr.


void gt_alphabet_delete(GtAlphabet *alphabet)

Decrease the reference count for alphabet or delete it, if this was the last reference.


Class GtAnnoDBGFFlike

The GtAnnoDBGFFlike class implements the GtAnnoDBSchema interface, using a database schema specifically tailored to store GenomeTools annotations.


GtAnnoDBSchema* gt_anno_db_gfflike_new(void)

Creates a new GtAnnoDBGFFlike schema object.


Class GtAnnoDBSchema

The GtAnnoDBSchema interface for a database-backed abstract GtFeatureIndex factory.


GtFeatureIndex* gt_anno_db_schema_get_feature_index(GtAnnoDBSchema *schema, GtRDB *db, GtError *err)

Returns a GtFeatureIndex object representing GtRDB object db interpreted as having schema schema. Returns NULL if an error occurred, err is set accordingly.


void gt_anno_db_schema_delete(GtAnnoDBSchema *schema)

Deletes schema and frees all associated memory.


Class GtArray

GtArray objects are generic arrays for elements of a certain size which grow on demand.


GtArray* gt_array_new(size_t size_of_elem)

Return a new GtArray object whose elements have the size size_of_elem.


GtArray* gt_array_ref(GtArray *array)

Increase the reference count for array and return it. If array is NULL, NULL is returned without any side effects.


GtArray* gt_array_clone(const GtArray *array)

Return a clone of array.


void* gt_array_get(const GtArray *array, GtUword index)

Return pointer to element number index of array. index has to be smaller than gt_array_size(array).


void* gt_array_get_first(const GtArray *array)

Return pointer to first element of array.


void* gt_array_get_last(const GtArray *array)

Return pointer to last element of array.


void* gt_array_pop(GtArray *array)

Return pointer to last element of array and remove it from array.


void* gt_array_get_space(const GtArray *array)

Return pointer to the internal space of array where the elements are stored.


#define gt_array_add(array, elem)

Add element elem to array. The size of elem must equal the given element size when the array was created and is determined automatically with the sizeof operator.


void gt_array_add_elem(GtArray *array, void *elem, size_t size_of_elem)

Add element elem with size size_of_elem to array. size_of_elem must equal the given element size when the array was created. Usually, this method is not used directly and the macro gt_array_add() is used instead.


void gt_array_add_array(GtArray *dest, const GtArray *src)

Add all elements of array src to the array dest. The element sizes of both arrays must be equal.


void gt_array_rem(GtArray *array, GtUword index)

Remove element with number index from array in O(gt_array_size(array)) time. index has to be smaller than gt_array_size(array).


void gt_array_rem_span(GtArray *array, GtUword frompos, GtUword topos)

Remove elements starting with number frompos up to (and including) topos from array in O(gt_array_size(array)) time. frompos has to be smaller or equal than topos and both have to be smaller than gt_array_size(array).


void gt_array_reverse(GtArray *array)

Reverse the order of the elements in array.


void gt_array_set_size(GtArray *array, GtUword size)

Set the size of array to size. size must be smaller or equal than gt_array_size(array).


void gt_array_reset(GtArray *array)

Reset the array. That is, afterwards the array has size 0.


size_t gt_array_elem_size(const GtArray *array)

Return the size of the elements stored in array.


GtUword gt_array_size(const GtArray *array)

Return the number of elements in array. If array equals NULL, 0 is returned.


void gt_array_sort(GtArray *array, GtCompare compar)

Sort array with the given compare function compar.


void gt_array_sort_stable(GtArray *array, GtCompare compar)

Sort array in a stable way with the given compare function compar.


void gt_array_sort_with_data(GtArray *array, GtCompareWithData compar, void *data)

Sort array with the given compare function compar. Passes a pointer with userdata data to compar.


void gt_array_sort_stable_with_data(GtArray *array, GtCompareWithData compar, void *data)

Sort array in a stable way with the given compare function compar. Passes a pointer with userdata data to compar.


int gt_array_cmp(const GtArray *array_a, const GtArray *array_b)

Compare the content of array_a with the content of array_b. array_a and array_b must have the same gt_array_size() and gt_array_elem_size().


void gt_array_delete(GtArray *array)

Decrease the reference count for array or delete it, if this was the last reference.


Class GtArrayInStream

Implements the GtNodeStream interface. GtArrayOutStream takes an array of GtGenomeNodes and delivers them when used as an input stream. This stream can be used to feed nodes from outside into a stream flow.


GtNodeStream* gt_array_in_stream_new(GtArray *nodes, GtUword *progress, GtError *err)

Creates a new GtArrayInStream, delivering nodes from nodes. Note that the array must contain pointers to GtGenomeNodes! For every node passed, the value pointed to by progress is incremented by 1.


Class GtArrayOutStream

The GtArrayOutStream class implements the GtNodeStream interface. GtArrayOutStream takes nodes from an input stream and adds them to a GtArray. This stream can be used to obtain nodes for processing outside of the usual stream flow.


GtNodeStream* gt_array_out_stream_new(GtNodeStream *in_stream, GtArray *nodes, GtError *err)

Creates a new GtArrayInStream, storing new references to GtFeatureNodes from in_stream in nodes. Note that the array must be set up to contain pointers to GtGenomeNodes!


GtNodeStream* gt_array_out_stream_all_new(GtNodeStream *in_stream, GtArray *nodes, GtError *err)

Like gt_array_out_stream_new(), but not restricted to feature nodes.


Class GtBEDInStream

Implements the GtNodeStream interface. A GtBEDInStream allows one to parse a BED file and return it as a stream of GtGenomeNode objects.


GtNodeStream* gt_bed_in_stream_new(const char *filename)

Return a GtBEDInStream object which subsequently reads the BED file with the given filename. If filename equals NULL, the BED data is read from stdin.


void gt_bed_in_stream_set_feature_type(GtBEDInStream *bed_in_stream, const char *type)

Create BED features parsed by bed_in_stream with given type (instead of the default "BED_feature").


void gt_bed_in_stream_set_thick_feature_type(GtBEDInStream *bed_in_stream, const char *type)

Create thick BED features parsed by bed_in_stream with given type (instead of the default "BED_thick_feature").


void gt_bed_in_stream_set_block_type(GtBEDInStream *bed_in_stream, const char *type)

Create BED blocks parsed by bed_in_stream with given type (instead of the default "BED_block").


Class GtBittab

Implements arbitrary-length bit arrays and various operations on them.


GtBittab* gt_bittab_new(GtUword num_of_bits)

Return a new GtBittab of length num_of_bits, initialised to 0. num_of_bits has to be > 0


void gt_bittab_set_bit(GtBittab *bittab, GtUword i)

Set bit i in bittab to 1.


void gt_bittab_unset_bit(GtBittab *bittab, GtUword i)

Set bit i in bittab to 0.


void gt_bittab_complement(GtBittab *bittab_a, const GtBittab *bittab_b)

Set bittab_a to be the complement of bittab_b.


void gt_bittab_equal(GtBittab *bittab_a, const GtBittab *bittab_b)

Set bittab_a to be equal to bittab_b.


void gt_bittab_and(GtBittab *bittab_a, const GtBittab *bittab_b, const GtBittab *bittab_c)

Set bittab_a to be the bitwise AND of bittab_b and bittab_c.


void gt_bittab_or(GtBittab *bittab_a, const GtBittab *bittab_b, const GtBittab *bittab_c)

Set bittab_a to be the bitwise OR of bittab_b and bittab_c.


void gt_bittab_nand(GtBittab *bittab_a, const GtBittab *bittab_b, const GtBittab *bittab_c)

Set bittab_a to be bittab_b NAND bittab_c.


void gt_bittab_and_equal(GtBittab *bittab_a, const GtBittab *bittab_b)

Set bittab_a to be the bitwise AND of bittab_a and bittab_b.


void gt_bittab_or_equal(GtBittab *bittab_a, const GtBittab *bittab_b)

Set bittab_a to be the bitwise OR of bittab_a and bittab_b.


void gt_bittab_shift_left_equal(GtBittab *bittab)

Shift bittab by one position to the left.


void gt_bittab_shift_right_equal(GtBittab *bittab)

Shift bittab by one position to the right.


void gt_bittab_unset(GtBittab *bittab)

Set all bits in bittab to 0.


void gt_bittab_show(const GtBittab *bittab, FILE *fp)

Output a representation of bittab to fp.


void gt_bittab_get_all_bitnums(const GtBittab *bittab, GtArray *array)

Fill array with the indices of all set bits in bittab.


bool gt_bittab_bit_is_set(const GtBittab *bittab, GtUword i)

Return true if bit i is set in bittab.


bool gt_bittab_cmp(const GtBittab *bittab_a, const GtBittab *bittab_b)

Return true if bittab_a and bittab_b are identical.


GtUword gt_bittab_get_first_bitnum(const GtBittab *bittab)

Return the index of the first set bit in bittab.


GtUword gt_bittab_get_last_bitnum(const GtBittab *bittab)

Return the index of the last set bit in bittab.


GtUword gt_bittab_get_next_bitnum(const GtBittab *bittab, GtUword i)

Return the index of the next set bit in bittab with an index greater than i.


GtUword gt_bittab_count_set_bits(const GtBittab *bittab)

Return the number of set bits in bittab.


GtUword gt_bittab_size(GtBittab *bittab)

Return the total number of bits of bittab.


void gt_bittab_delete(GtBittab *bittab)

Delete bittab.


Class GtBlock

The GtBlock class represents a portion of screen space which relates to a specific ``top-level'' feature (and maybe its collapsed child features). It is the smallest layoutable unit in AnnotationSketch and has a caption (which may be displayed above the block rendering).


GtBlock* gt_block_new(void)

Creates a new GtBlock object.


GtBlock* gt_block_ref(GtBlock*)

Increases the reference count.


GtBlock* gt_block_new_from_node(GtFeatureNode *node)

Create a new GtBlock object, setting block parameters (such as strand, range) from a given node template.


GtRange gt_block_get_range(const GtBlock*)

Returns the base range of the GtBlock's top level element.


GtRange* gt_block_get_range_ptr(const GtBlock *block)

Returns a pointer to the base range of the GtBlock's top level element.


bool gt_block_has_only_one_fullsize_element(const GtBlock*)

Checks whether a GtBlock is occupied completely by a single element.


void gt_block_merge(GtBlock*, GtBlock*)

Merges the contents of two GtBlocks into the first one.


GtBlock* gt_block_clone(GtBlock*)

Returns an independent copy of a GtBlock.


void gt_block_set_caption_visibility(GtBlock*, bool)

Set whether a block caption should be displayed or not.


bool gt_block_caption_is_visible(const GtBlock*)

Returns whether a block caption should be displayed or not.


void gt_block_set_caption(GtBlock*, GtStr *caption)

Sets the GtBlock's caption to caption.


GtStr* gt_block_get_caption(const GtBlock*)

Returns the GtBlock's caption.


void gt_block_set_strand(GtBlock*, GtStrand strand)

Sets the GtBlock's strand to strand.


GtStrand gt_block_get_strand(const GtBlock*)

Returns the GtBlock's strand.


GtFeatureNode* gt_block_get_top_level_feature(const GtBlock*)

Returns the GtBlock's top level feature as a GtFeatureNode object.


GtUword gt_block_get_size(const GtBlock*)

Returns the number of elements in the GtBlock.


const char* gt_block_get_type(const GtBlock*)

Returns the feature type of the GtBlock.


void gt_block_delete(GtBlock*)

Deletes a GtBlock.


Class GtCDSStream

Implements the GtNodeStream interface. A GtCDSStream determines the coding sequence (CDS) for sequences determined by feature nodes of type exon and adds them as feature nodes of type CDS.


GtNodeStream* gt_cds_stream_new(GtNodeStream *in_stream, GtRegionMapping *region_mapping, unsigned int minorflen, const char *source, bool start_codon, bool final_stop_codon, bool generic_star_codons)

Create a GtCDSStream* which determines the coding sequence (CDS) for sequences determined by feature nodes of type exon it retrieves from in_stream, adds them as feature nodes of type CDS and returns all nodes. region_mapping is used to map the sequence IDs of the feature nodes to the regions of the actual sequences. minorflen is the minimum length an ORF must have in order to be added. The CDS features are created with the given source. If start_codon equals true an ORF must begin with a start codon, otherwise it can start at any position. If final_stop_codon equals true the final ORF must end with a stop codon. If generic_start_codons equals true, the start codons of the standard translation scheme are used as start codons (otherwise the amino acid 'M' is regarded as a start codon).


Class GtCSAStream

Implements the GtNodeStream interface. A GtCSAStream takes spliced alignments and transforms them into consensus spliced alignments.


GtNodeStream* gt_csa_stream_new(GtNodeStream *in_stream, GtUword join_length)

Create a GtCSAStream* which takes spliced alignments from its in_stream (which are at most join_length many bases apart), transforms them into consensus spliced alignments, and returns them.


Class GtCanvas

The GtCanvas class is an abstraction of a stateful drawing surface. Constructors must be implemented in subclasses as different arguments are required for drawing to specific graphics back-ends.


GtUword gt_canvas_get_height(GtCanvas *canvas)

Returns the height of the given canvas.


void gt_canvas_delete(GtCanvas *canvas)

Delete the given canvas.


Class GtCanvasCairoContext

Implements the GtCanvas interface using a Cairo context (cairo_t) as input. This Canvas uses the GtGraphicsCairo class.

Drawing to a cairo_t allows the use of the AnnotationSketch engine in any Cairo-based graphical application.


GtCanvas* gt_canvas_cairo_context_new(GtStyle *style, cairo_t *context, double offsetpos, GtUword width, GtUword height, GtImageInfo *image_info, GtError *err)

Create a new GtCanvas object tied to the cairo_t context, width and height using the given style. The optional image_info is filled when the created Canvas object is used to render a GtDiagram object. offsetpos determines where to start drawing on the surface.


Class GtCanvasCairoFile

Implements the GtCanvas interface. This Canvas uses the GtGraphicsCairo class.


GtCanvas* gt_canvas_cairo_file_new(GtStyle *style, GtGraphicsOutType output_type, GtUword width, GtUword height, GtImageInfo *image_info, GtError *err)

Create a new GtCanvasCairoFile object with given output_type and width using the configuration given in style. The optional image_info is filled when the created object is used to render a GtDiagram object. Possible GtGraphicsOutType values are GRAPHICS_PNG, GRAPHICS_PS, GRAPHICS_PDF and GRAPHICS_SVG. Dependent on the local Cairo installation, not all of them may be available.


int gt_canvas_cairo_file_to_file(GtCanvasCairoFile *canvas, const char *filename, GtError *err)

Write rendered canvas to the file with name filename. If this method returns a value other than 0, check err for an error message.


int gt_canvas_cairo_file_to_stream(GtCanvasCairoFile *canvas, GtStr *stream)

Append rendered canvas image data to given stream.


Class GtCheckBoundariesVisitor

Implements the GtNodeVisitor interface.


GtNodeVisitor* gt_check_boundaries_visitor_new(void)

Creates a new GtCheckBoundariesVisitor object.


Class GtCodonIterator

The GtCodonIterator interface.


GtUword gt_codon_iterator_current_position(GtCodonIterator *codon_iterator)

Return the current reading offset of codin_iterator, starting from the position in the sequence given at iterator instantiation time.


GtUword gt_codon_iterator_length(GtCodonIterator *codon_iterator)

Return the length of the substring to scan, given at instantiation time.


void gt_codon_iterator_rewind(GtCodonIterator *codon_iterator)

Rewind the codon_iterator to point again to the position in the sequence given at iterator instantiation time.


GtCodonIteratorStatus gt_codon_iterator_next(GtCodonIterator *codon_iterator, char *n1, char *n2, char *n3, unsigned int *frame, GtError *err)

Sets the values of n1, n2 and n3 to the codon beginning at the current reading position of codon_iterator and then advances the reading position by one. The current reading frame shift (0, 1 or 2) is for the current codon is written to the position pointed to by frame. This function returns one of three status codes: GT_CODON_ITERATOR_OK : a codon was read successfully, GT_CODON_ITERATOR_END : no codon was read because the end of the scan region has been reached, GT_CODON_ITERATOR_ERROR : no codon was read because an error occurred during sequence access. See err for details.


void gt_codon_iterator_delete(GtCodonIterator *codon_iterator)

Delete codon_iterator.


Class GtCodonIteratorEncseq

GtCodonIterator* gt_codon_iterator_encseq_new(GtEncseq *encseq, GtUword startpos, GtUword length, GtError *err)

Creates a new GtCodonIterator traversing encseq over a length of len starting at concatenated position startpos. If an error occurs, NULL is returned and err is set accordingly.


GtCodonIterator* gt_codon_iterator_encseq_new_with_readmode( GtEncseq *encseq, GtUword startpos, GtUword length, GtReadmode readmode, GtError *err)

Creates a new GtCodonIterator traversing encseq over a length of len starting at concatenated position startpos. readmode specified reading direction. If an error occurs, NULL is returned and err is set accordingly.


Class GtCodonIteratorSimple

GtCodonIterator* gt_codon_iterator_simple_new(const char *seq, GtUword len, GtError *err)

Creates a new GtCodonIterator traversing seq over a length of len. If an error occurs, NULL is returned and err is set accordingly.


Class GtColor

The GtColor class holds a RGB color definition.


GtColor* gt_color_new(double red, double green, double blue, double alpha)

Create a new GtColor object with the color given by the red, green, and blue arguments. The value for each color channel must be between 0 and 1.


void gt_color_set(GtColor *color, double red, double green, double blue, double alpha)

Change the color of the color object to the color given by the red, green, and blue arguments. The value for each color channel must be between 0 and 1.


bool gt_color_equals(const GtColor *c1, const GtColor *c2)

Returns true if the colors c1 and c2 are equal.


void gt_color_delete(GtColor *color)

Delete the color object.


Class GtCommentNode

Implements the GtGenomeNode interface. Comment nodes correspond to comment lines in GFF3 files (i.e., lines which start with a single ``#'').


GtGenomeNode* gt_comment_node_new(const char *comment)

Return a new GtCommentNode object representing a comment. Please note that the single leading ``#'' which denotes comment lines in GFF3 files should not be part of comment.


const char* gt_comment_node_get_comment(const GtCommentNode *comment_node)

Return the comment stored in comment_node.


GtCommentNode* gt_comment_node_try_cast(GtGenomeNode *gn)

Test whether the given genome node is a comment node. If so, a pointer to the meta node is returned. If not, NULL is returned. Note that in most cases, one should implement a GtNodeVisitor to handle processing of different GtGenomeNode types.


GtCommentNode* gt_comment_node_cast(GtGenomeNode *gn)

Test whether the given genome node is a comment node. If so, a pointer to the meta node is returned. If not, an assertion fails.


Class GtCstrTable

Implements a table of C strings.


GtCstrTable* gt_cstr_table_new(void)

Return a new GtCstrTable object.


void gt_cstr_table_add(GtCstrTable *table, const char *cstr)

Add cstr to table. table must not already contain cstr!


const char* gt_cstr_table_get(const GtCstrTable *table, const char *cstr)

If a C string equal to cstr is contained in table, it is returned. Otherwise NULL is returned.


GtStrArray* gt_cstr_table_get_all(const GtCstrTable *table)

Return a GtStrArray* which contains all cstrs added to table in alphabetical order. The caller is responsible to free it!


void gt_cstr_table_remove(GtCstrTable *table, const char *cstr)

Remove cstr from table.


void gt_cstr_table_reset(GtCstrTable *table)

Reset table (that is, remove all contained C strings).


void gt_cstr_table_delete(GtCstrTable *table)

Delete C string table.


Class GtCustomTrack

The GtCustomTrack interface allows the GtCanvas to call user-defined drawing functions on a GtGraphics object. Please refer to the specific implementations' documentation for more information on a particular custom track.


GtCustomTrack* gt_custom_track_ref(GtCustomTrack *ctrack)

Increase the reference count for ctrack.


void gt_custom_track_delete(GtCustomTrack *ctrack)

Delete the given ctrack.


Class GtCustomTrackGcContent

Implements the GtCustomTrack interface. This custom track draws a plot of the GC content of a given sequence in the displayed range. As a window size for GC content calculation, windowsize is used.


GtCustomTrack* gt_custom_track_gc_content_new(const char *seq, GtUword seqlen, GtUword windowsize, GtUword height, double avg, bool show_scale)

Creates a new GtCustomTrackGcContent for sequence seq with length seqlen of height height with windowsize windowsize. A horizontal line is drawn for the percentage value avg, with avg between 0 and 1. If show_scale is set to true, then a vertical scale rule is drawn at the left end of the curve.


Class GtCustomTrackScriptWrapper

Implements the GtCustomTrack interface. This custom track is only used to store pointers to external callbacks, e.g. written in a scripting language. This class does not store any state, relying on the developer of the external custom track class to do so.


GtCustomTrack* gt_custom_track_script_wrapper_new(GtCtScriptRenderFunc render_func, GtCtScriptGetHeightFunc get_height_func, GtCtScriptGetTitleFunc get_title_func, GtCtScriptFreeFunc free_func)

Creates a new GtCustomTrackScriptWrapper object.


Class GtDiagram

The GtDiagram class acts as a representation of a sequence annotation diagram independent of any output format. Besides annotation features as annotation graphs, it can contain one or more custom tracks. A individual graphical representation of the GtDiagram contents is created by creating a GtLayout object using the GtDiagram and then calling gt_layout_sketch() with an appropriate GtCanvas object.


GtDiagram* gt_diagram_new(GtFeatureIndex *feature_index, const char *seqid, const GtRange *range, GtStyle *style, GtError*)

Create a new GtDiagram object representing the feature nodes in feature_index in region seqid overlapping with range. The GtStyle object style will be used to determine collapsing options during the layout process.


GtDiagram* gt_diagram_new_from_array(GtArray *features, const GtRange *range, GtStyle *style)

Create a new GtDiagram object representing the feature nodes in features. The features must overlap with range. The GtStyle object style will be used to determine collapsing options during the layout process.


GtRange gt_diagram_get_range(const GtDiagram *diagram)

Returns the sequence position range represented by the diagram.


void gt_diagram_set_track_selector_func(GtDiagram*, GtTrackSelectorFunc, void*)

Assigns a GtTrackSelectorFunc to use to assign blocks to tracks. If none is set, or set to NULL, then track types are used as track keys (default behavior).


void gt_diagram_reset_track_selector_func(GtDiagram *diagram)

Resets the track selection behavior of this GtDiagram back to the default.


void gt_diagram_add_custom_track(GtDiagram*, GtCustomTrack*)

Registers a new custom track in the diagram.


void gt_diagram_delete(GtDiagram*)

Delete the diagram and all its components.


Class GtDiscDistri

The GtDiscDistri class represents a discrete distribution of integer values.


void GtDiscDistriIterFunc(GtUword key, GtUint64 value, void *data)

Callback function called during iteration over each item of the distribution, where key is the counted value and value is the count.


GtDiscDistri* gt_disc_distri_new(void)

Creates a new, empty GtDiscDistri.


void gt_disc_distri_add(GtDiscDistri *d, GtUword key)

Adds one count of key to d.


void gt_disc_distri_add_multi(GtDiscDistri *d, GtUword key, GtUint64 occurrences)

Adds occurrences counts of key to d.


GtUint64 gt_disc_distri_get(const GtDiscDistri *d, GtUword key)

Return the current count of key as stored in d.


void gt_disc_distri_show(const GtDiscDistri *d, GtFile *outfp)

Prints the current state of d to outfile. If outfp is NULL, stdout will be used for output.


void gt_disc_distri_foreach(const GtDiscDistri *d, GtDiscDistriIterFunc func, void *data)

Iterate over all non-empty entries in d, calling func for each one, from the smallest to the largest key. The data pointer can be used to pass arbitrary data to func.


void gt_disc_distri_foreach_in_reverse_order(const GtDiscDistri *d, GtDiscDistriIterFunc func, void *data)

Same as foreach, but from the longest to the smallest key.


Class GtDlist

A double-linked list which is sorted according to a GtCompare compare function (qsort(3)-like, only if one was supplied to the constructor).


GtDlist* gt_dlist_new(GtCompare compar)

Return a new GtDlist object sorted according to compar function. If compar equals NULL, no sorting is enforced.


GtDlist* gt_dlist_new_with_data(GtCompareWithData compar, void *data)

Return a new GtDlist object sorted according to compar function. If compar equals NULL, no sorting is enforced. Use data to supply additional data to the comparator function.


GtDlistelem* gt_dlist_first(const GtDlist *dlist)

Return the first GtDlistelem object in dlist.


GtDlistelem* gt_dlist_last(const GtDlist *dlist)

Return the last GtDlistelem object in dlist.


GtDlistelem* gt_dlist_find(const GtDlist *dlist, void *data)

Return the first GtDlistelem object in dlist which contains data identical to data. Takes O(n) time.


GtUword gt_dlist_size(const GtDlist *dlist)

Return the number of GtDlistelem objects in dlist.


void gt_dlist_add(GtDlist *dlist, void *data)

Add a new GtDlistelem object containing data to dlist. Usually O(n), but O(1) if data is added in sorted order.


void gt_dlist_remove(GtDlist *dlist, GtDlistelem *dlistelem)

Remove dlistelem from dlist and free it.


int gt_dlist_example(GtError *err)

Example for usage of the GtDlist class.


void gt_dlist_delete(GtDlist *dlist)

Delete dlist.


Class GtDlistelem

GtDlistelem* gt_dlistelem_next(const GtDlistelem *dlistelem)

Return the successor of dlistelem, or NULL if the element is the last one in the GtDlist.


GtDlistelem* gt_dlistelem_previous(const GtDlistelem *dlistelem)

Return the predecessor of dlistelem, or NULL if the element is the first one in the GtDlist.


void* gt_dlistelem_get_data(const GtDlistelem *dlistelem)

Return the data pointer attached to dlistelem.


Class GtEOFNode

Implements the GtGenomeNode interface. EOF nodes mark the barrier between separate input files in an GFF3 stream.


GtGenomeNode* gt_eof_node_new(void)

Create a new GtEOFNode* representing an EOF marker.


GtEOFNode* gt_eof_node_try_cast(GtGenomeNode *gn)

Test whether the given genome node is an EOF node. If so, a pointer to the EOF node is returned. If not, NULL is returned. Note that in most cases, one should implement a GtNodeVisitor to handle processing of different GtGenomeNode types.


Class GtEncseq

The GtEncseq class represents a concatenated collection of sequences from one or more input files in a bit-compressed encoding. It is stored in a number of mmap()able files, depending on which features it is meant to support. The main compressed sequence information is stored in an encoded sequence table, with the file suffix '.esq'. This table is the minimum requirement for the GtEncseq structure and must always be present. In addition, if support for multiple sequences is desired, a sequence separator position table with the '.ssp' suffix is required. If support for sequence descriptions is required, two additional tables are needed: a description table with the suffix '.des' and a description separator table with the file suffix '.sds'. Creation and requirement of these tables can be switched on and off using API functions as outlined below. The GtEncseq represents the stored sequences as one concatenated string. It allows access to the sequences by providing start positions and lengths for each sequence, making it possible to extract encoded substrings into a given buffer, as well as accessing single characters both in a random and a sequential fashion.


const char* gt_encseq_indexname(const GtEncseq *encseq)

Returns the indexname (as given at loading time) of encseq or the string "generated" if the GtEncseq was build in memory only.


GtUword gt_encseq_total_length(const GtEncseq *encseq)

Returns the total number of characters in all sequences of encseq, including separators and wildcards.


GtUword gt_encseq_num_of_sequences(const GtEncseq *encseq)

Returns the total number of sequences contained in encseq.


GtUchar gt_encseq_get_encoded_char(const GtEncseq *encseq, GtUword pos, GtReadmode readmode)

Returns the encoded representation of the character at position pos of encseq read in the direction as indicated by readmode.


char gt_encseq_get_decoded_char(const GtEncseq *encseq, GtUword pos, GtReadmode readmode)

Returns the decoded representation of the character at position pos of encseq read in the direction as indicated by readmode.


bool gt_encseq_position_is_separator(const GtEncseq *encseq, GtUword pos, GtReadmode readmode)

Returns true iff pos is a separator position of encseq read in the direction as indicated by readmode.


bool gt_encseq_position_is_wildcard(const GtEncseq *encseq, GtUword pos, GtReadmode readmode)

Returns true iff pos is a wildcard in encseq read in the direction as indicated by readmode.


GtEncseq* gt_encseq_ref(GtEncseq *encseq)

Increases the reference count of encseq.


GtEncseqReader* gt_encseq_create_reader_with_readmode(const GtEncseq *encseq, GtReadmode readmode, GtUword startpos)

Returns a new GtEncseqReader for encseq, starting from position startpos. Also supports reading the sequence from the reverse and delivering (reverse) complement characters on DNA alphabets using the readmode option. Please make sure that the GT_READMODE_COMPL and GT_READMODE_REVCOMPL readmodes are only used on DNA alphabets.


void gt_encseq_extract_encoded(const GtEncseq *encseq, GtUchar *buffer, GtUword frompos, GtUword topos)

Stores the encoded representation of the substring from 0-based position frompos to position topos of encseq. The result is written to the location pointed to by buffer, which must be large enough to hold the result.


void gt_encseq_extract_decoded(const GtEncseq *encseq, char *buffer, GtUword frompos, GtUword topos)

Stores the decoded version of the substring from 0-based position frompos to position topos of encseq. If the extracted region contains a separator character, it will be represented by non-printable SEPARATOR constant. The caller is responsible to handle this case. The result of the extraction is written to the location pointed to by buffer, which must be sufficiently large to hold the result.


GtUword gt_encseq_seqlength(const GtEncseq *encseq, GtUword seqnum)

Returns the length of the seqnum-th sequence in the encseq. Requires multiple sequence support enabled in encseq.


GtUword gt_encseq_min_seq_length(const GtEncseq *encseq)

Returns the length of the shortest sequence in the encseq.


GtUword gt_encseq_max_seq_length(const GtEncseq *encseq)

Returns the length of the longest sequence in the encseq.


bool gt_encseq_has_multiseq_support(const GtEncseq *encseq)

Returns true if encseq has multiple sequence support.


bool gt_encseq_has_description_support(const GtEncseq *encseq)

Returns true if encseq has description support.


bool gt_encseq_has_md5_support(const GtEncseq *encseq)

Returns true if encseq has MD5 support.


GtUword gt_encseq_seqstartpos(const GtEncseq *encseq, GtUword seqnum)

Returns the start position of the seqnum-th sequence in the encseq. Requires multiple sequence support enabled in encseq.


GtUword gt_encseq_seqnum(const GtEncseq *encseq, GtUword position)

Returns the sequence number from the given position for a given GtEncseq encseq.


const char* gt_encseq_description(const GtEncseq *encseq, GtUword *desclen, GtUword seqnum)

Returns a pointer to the description of the seqnum-th sequence in the encseq. The length of the returned string is written to the location pointed at by desclen. The returned description pointer is not \0-terminated! Requires description support enabled in encseq.


const GtStrArray* gt_encseq_filenames(const GtEncseq *encseq)

Returns a GtStrArray of the names of the original sequence files contained in encseq.


GtUword gt_encseq_num_of_files(const GtEncseq *encseq)

Returns the number of files contained in encseq.


GtUint64 gt_encseq_effective_filelength(const GtEncseq *encseq, GtUword filenum)

Returns the effective length (sum of sequence lengths and separators between them) of the filenum-th file contained in encseq.


GtUword gt_encseq_filestartpos(const GtEncseq *encseq, GtUword filenum)

Returns the start position of the sequences of the filenum-th file in the encseq. Requires multiple file support enabled in encseq.


GtUword gt_encseq_filenum(const GtEncseq *encseq, GtUword position)

Returns the file number from the given position for a given GtEncseq encseq.


GtUword gt_encseq_filenum_first_seqnum(const GtEncseq *encseq, GtUword filenum)

Returns the first sequence number of the sequences in file filenum for a given GtEncseq encseq.


GtAlphabet* gt_encseq_alphabet(const GtEncseq *encseq)

Returns the GtAlphabet associated with encseq.


int gt_encseq_mirror(GtEncseq *encseq, GtError *err)

Extends encseq by virtual reverse complement sequences. Returns 0 if mirroring has been successfully enabled, otherwise -1. err is set accordingly.


void gt_encseq_unmirror(GtEncseq *encseq)

Removes virtual reverse complement sequences added by gt_encseq_mirror().


bool gt_encseq_is_mirrored(const GtEncseq *encseq)

Returns true if encseq contains virtual reverse complement sequences as added by gt_encseq_mirror().


GtUword gt_encseq_version(const GtEncseq *encseq)

Returns the version number of the file representation of encseq if it exists, or 0 if it was not mapped from a file.


bool gt_encseq_is_64_bit(const GtEncseq *encseq)

Returns TRUE if encseq was created on a 64-bit system.


void gt_encseq_delete(GtEncseq *encseq)

Deletes encseq and frees all associated space.


Class GtEncseqBuilder

The GtEncseqBuilder class creates GtEncseq objects by constructing uncompressed, encoded string copies in memory.


GtEncseqBuilder* gt_encseq_builder_new(GtAlphabet *alpha)

Creates a new GtEncseqBuilder using the alphabet alpha as a basis for on-the-fly encoding of sequences in memory.


void gt_encseq_builder_enable_description_support( GtEncseqBuilder *eb)

Enables support for retrieving descriptions from the encoded sequence to be built by eb. Requires additional memory to hold the descriptions and a position index. Activated by default.


void gt_encseq_builder_disable_description_support( GtEncseqBuilder *eb)

Disables support for retrieving descriptions from the encoded sequence to be built by eb. Disabling this support will result in an error when trying to call the method gt_encseq_description() on the GtEncseq object created by eb.


void gt_encseq_builder_enable_multiseq_support( GtEncseqBuilder *eb)

Enables support for random access to multiple sequences in the encoded sequence to be built by eb. Requires additional memory for an index of starting positions. Activated by default.


void gt_encseq_builder_disable_multiseq_support( GtEncseqBuilder *eb)

Disables support for random access to multiple sequences in the encoded sequence to be built by eb. Disabling this support will result in an error when trying to call the method gt_encseq_seqlength() or gt_encseq_seqstartpos() on the GtEncseq object created by eb.


void gt_encseq_builder_create_esq_tab(GtEncseqBuilder *eb)

Enables creation of the .esq table containing the encoded sequence itself. Naturally, enabled by default.


void gt_encseq_builder_do_not_create_esq_tab(GtEncseqBuilder *eb)

Disables creation of the .esq table.


void gt_encseq_builder_create_des_tab(GtEncseqBuilder *eb)

Enables creation of the .des table containing sequence descriptions.


void gt_encseq_builder_do_not_create_des_tab(GtEncseqBuilder *eb)

Disables creation of the .des table.


void gt_encseq_builder_create_ssp_tab(GtEncseqBuilder *eb)

Enables creation of the .ssp table containing indexes for multiple sequences.


void gt_encseq_builder_do_not_create_ssp_tab(GtEncseqBuilder *eb)

Disables creation of the .ssp table.


void gt_encseq_builder_create_sds_tab(GtEncseqBuilder *eb)

Enables creation of the .sds table containing indexes for sequence descriptions.


void gt_encseq_builder_do_not_create_sds_tab(GtEncseqBuilder *eb)

Disables creation of the .sds table.


void gt_encseq_builder_add_cstr(GtEncseqBuilder *eb, const char *str, GtUword strlen, const char *desc)

Adds a sequence given as a C string str of length strlen to the encoded sequence to be built by eb. Additionally, a description can be given (desc). If description support is enabled, this must not be NULL. A copy will be made during the addition process and the sequence will be encoded using the alphabet set at the construction time of eb. Thus it must only contain symbols compatible with the alphabet.


void gt_encseq_builder_add_str(GtEncseqBuilder *eb, GtStr *str, const char *desc)

Adds a sequence given as a GtStr str to the encoded sequence to be built by eb. Additionally, a description can be given. If description support is enabled, desc must not be NULL. A copy will be made during the addition process and the sequence will be encoded using the alphabet set at the construction time of eb. Thus it must only contain symbols compatible with the alphabet.


void gt_encseq_builder_add_encoded(GtEncseqBuilder *eb, const GtUchar *str, GtUword strlen, const char *desc)

Adds a sequence given as a pre-encoded string str of length strlen to the encoded sequence to be built by eb. str must be encoded using the alphabet set at the construction time of eb. str is not allowed to include sequence separators. Does not take ownership of str. Additionally, a description desc can be given. If description support is enabled, this must not be NULL.


void gt_encseq_builder_add_encoded_own(GtEncseqBuilder *eb, const GtUchar *str, GtUword strlen, const char *desc)

Adds a sequence given as a pre-encoded string str of length strlen to the encoded sequence to be built by eb. str must be encoded using the alphabet set at the construction time of eb. Always creates a copy of str, so it can be used with memory that is to be freed immediately after adding. Additionally, a description desc can be given. If description support is enabled, this must not be NULL.


void gt_encseq_builder_add_multiple_encoded(GtEncseqBuilder *eb, const GtUchar *str, GtUword strlen)

Adds a sequence given as a pre-encoded string str of length strlen to the encoded sequence to be built by eb. str must be encoded using the alphabet set at the construction time of eb. str may include sequence separators. Does not take ownership of str.


void gt_encseq_builder_set_logger(GtEncseqBuilder*, GtLogger *l)

Sets the logger to use by ee during encoding to l. Default is NULL (no logging).


GtEncseq* gt_encseq_builder_build(GtEncseqBuilder *eb, GtError *err)

Creates a new GtEncseq from the sequences added to eb. Returns a GtEncseq instance on success, or NULL on error. If an error occurred, err is set accordingly. The state of eb is reset to empty after successful creation of a new GtEncseq (like having called gt_encseq_builder_reset()).


void gt_encseq_builder_reset(GtEncseqBuilder *eb)

Clears all added sequences and descriptions, resetting eb to a state similar to the state immediately after its initial creation.


void gt_encseq_builder_delete(GtEncseqBuilder *eb)

Deletes eb.


Class GtEncseqEncoder

The GtEncseqEncoder class creates objects encapsulating a parameter set for conversion from sequence files into encoded sequence files on secondary storage.


GtEncseqEncoder* gt_encseq_encoder_new(void)

Creates a new GtEncseqEncoder.


void gt_encseq_encoder_set_timer(GtEncseqEncoder *ee, GtTimer *t)

Sets t to be the timer for ee. Default is NULL (no progress reporting).


GtTimer* gt_encseq_encoder_get_timer(const GtEncseqEncoder *ee)

Returns the timer set for ee.


int gt_encseq_encoder_use_representation(GtEncseqEncoder *ee, const char *sat, GtError *err)

Sets the representation of ee to sat which must be one of 'direct', 'bytecompress', 'bit', 'uchar', 'ushort' or 'uint32'. Returns 0 on success, and a negative value on error (err is set accordingly).


GtStr* gt_encseq_encoder_representation(const GtEncseqEncoder *ee)

Returns the representation requested for ee.


int gt_encseq_encoder_use_symbolmap_file(GtEncseqEncoder *ee, const char *smap, GtError *err)

Sets the symbol map file to use in ee to smap which must a valid alphabet description file. Returns 0 on success, and a negative value on error (err is set accordingly). Default is NULL (no alphabet transformation).


const char* gt_encseq_encoder_symbolmap_file(const GtEncseqEncoder *ee)

Returns the symbol map file requested for ee.


void gt_encseq_encoder_set_logger(GtEncseqEncoder *ee, GtLogger *l)

Sets the logger to use by ee during encoding to l. Default is NULL (no logging).


void gt_encseq_encoder_enable_description_support( GtEncseqEncoder *ee)

Enables support for retrieving descriptions from the encoded sequence encoded by ee. That is, the .des and .sds tables are created. This is a prerequisite for being able to activate description support in gt_encseq_loader_require_description_support(). Activated by default.


void gt_encseq_encoder_disable_description_support( GtEncseqEncoder *ee)

Disables support for retrieving descriptions from the encoded sequence encoded by ee. That is, the .des and .sds tables are not created. Encoded sequences created without this support will not be able to be loaded via a GtEncseqLoader with gt_encseq_loader_require_description_support() enabled.


void gt_encseq_encoder_enable_multiseq_support( GtEncseqEncoder *ee)

Enables support for random access to multiple sequences in the encoded sequence encoded by ee. That is, the .ssp table is created. This is a prerequisite for being able to activate description support in gt_encseq_loader_require_multiseq_support(). Activated by default.


void gt_encseq_encoder_disable_multiseq_support( GtEncseqEncoder *ee)

Disables support for random access to multiple sequences in the encoded sequence encoded by ee. That is, the .ssp table is not created. Encoded sequences created without this support will not be able to be loaded via a GtEncseqLoader with gt_encseq_loader_require_multiseq_support() enabled.


void gt_encseq_encoder_enable_lossless_support( GtEncseqEncoder *ee)

Enables support for lossless reproduction of the original sequence, regardless of alphabet transformations that may apply. Deactivated by default.


void gt_encseq_encoder_disable_lossless_support( GtEncseqEncoder *ee)

Enables support for lossless reproduction of the original sequence, regardless of alphabet transformations that may apply. Encoded sequences created without this support will not be able to be loaded via a GtEncseqLoader with gt_encseq_loader_require_lossless_support() enabled.


void gt_encseq_encoder_enable_md5_support(GtEncseqEncoder *ee)

Enables support for quick MD5 indexing of the sequences in ee. Activated by default.


void gt_encseq_encoder_disable_md5_support(GtEncseqEncoder *ee)

Enables support for quick MD5 indexing of the sequences in ee. Encoded sequences created without this support will not be able to be loaded via a GtEncseqLoader with gt_encseq_loader_require_md5_support() enabled.


void gt_encseq_encoder_create_des_tab(GtEncseqEncoder *ee)

Enables creation of the .des table containing sequence descriptions. Enabled by default.


void gt_encseq_encoder_do_not_create_des_tab(GtEncseqEncoder *ee)

Disables creation of the .des table.


bool gt_encseq_encoder_des_tab_requested( const GtEncseqEncoder *ee)

Returns true if the creation of the .des table has been requested, false otherwise.


void gt_encseq_encoder_create_ssp_tab(GtEncseqEncoder *ee)

Enables creation of the .ssp table containing indexes for multiple sequences. Enabled by default.


void gt_encseq_encoder_do_not_create_ssp_tab(GtEncseqEncoder *ee)

Disables creation of the .ssp table.


bool gt_encseq_encoder_ssp_tab_requested( const GtEncseqEncoder *ee)

Returns true if the creation of the .ssp table has been requested, false otherwise.


void gt_encseq_encoder_create_sds_tab(GtEncseqEncoder *ee)

Enables creation of the .sds table containing indexes for sequence descriptions. Enabled by default.


void gt_encseq_encoder_do_not_create_sds_tab(GtEncseqEncoder *ee)

Disables creation of the .sds table.


bool gt_encseq_encoder_sds_tab_requested( const GtEncseqEncoder *ee)

Returns true if the creation of the .sds table has been requested, false otherwise.


void gt_encseq_encoder_create_md5_tab(GtEncseqEncoder *ee)

Enables creation of the .md5 table containing MD5 sums. Enabled by default.


void gt_encseq_encoder_do_not_create_md5_tab(GtEncseqEncoder *ee)

Disables creation of the .md5 table.


bool gt_encseq_encoder_md5_tab_requested( const GtEncseqEncoder *ee)

Returns true if the creation of the .md5 table has been requested, false otherwise.


void gt_encseq_encoder_set_input_dna(GtEncseqEncoder *ee)

Sets the sequence input type for ee to DNA.


bool gt_encseq_encoder_is_input_dna(GtEncseqEncoder *ee)

Returns true if the input sequence has been defined as being DNA.


void gt_encseq_encoder_set_input_protein(GtEncseqEncoder *ee)

Sets the sequence input type for ee to protein/amino acids.


bool gt_encseq_encoder_is_input_protein(GtEncseqEncoder *ee)

Returns true if the input sequence has been defined as being protein.


void gt_encseq_encoder_clip_desc(GtEncseqEncoder *ee)

Makes ee ignore all description suffixes after the first whitespace character per description (as defined via isspace(3)).


bool gt_encseq_encoder_are_descs_clipped(GtEncseqEncoder *ee)

Returns true if ee clips all descriptions after the first whitespace.


int gt_encseq_encoder_encode(GtEncseqEncoder *ee, GtStrArray *seqfiles, const char *indexname, GtError *err)

Encodes the sequence files given in seqfiles using the settings in ee and indexname as the prefix for the index tables. Returns 0 on success, or a negative value on error (err is set accordingly).


void gt_encseq_encoder_delete(GtEncseqEncoder *ee)

Deletes ee.


Class GtEncseqLoader

The GtEncseqLoader class creates GtEncseq objects by mapping index files from secondary storage into memory.


GtEncseqLoader* gt_encseq_loader_new(void)

Creates a new GtEncseqLoader.


void gt_encseq_loader_enable_autosupport(GtEncseqLoader *el)

Enables auto-discovery of supported features when loading an encoded sequence. That is, if a file with indexname.suffix exists which is named like a table file, it is loaded automatically. Use gt_encseq_has_multiseq_support() etc. to query for these capabilities.


void gt_encseq_loader_disable_autosupport(GtEncseqLoader *el)

Disables auto-discovery of supported features.


void gt_encseq_loader_require_description_support( GtEncseqLoader *el)

Enables support for retrieving descriptions from the encoded sequence to be loaded by el. That is, the .des and .sds tables must be present. For example, these tables are created by having enabled the gt_encseq_encoder_enable_description_support() option when encoding. Activated by default.


void gt_encseq_loader_drop_description_support(GtEncseqLoader *el)

Disables support for retrieving descriptions from the encoded sequence to be loaded by el. That is, the .des and .sds tables need not be present. However, disabling this support will result in an error when trying to call the method gt_encseq_description() on the GtEncseq object created by el.


void gt_encseq_loader_require_multiseq_support(GtEncseqLoader *el)

Enables support for random access to multiple sequences in the encoded sequence to be loaded by el. That is, the .ssp table must be present. For example, this table is created by having enabled the gt_encseq_encoder_enable_multiseq_support() option when encoding. Activated by default.


void gt_encseq_loader_drop_multiseq_support(GtEncseqLoader *el)

Disables support for random access to multiple sequences in the encoded sequence to be loaded by el. That is, the .ssp table needs not be present. However, disabling this support will result in an error when trying to call the method gt_encseq_seqlength() and gt_encseq_seqstartpos() on the GtEncseq object created by el.


void gt_encseq_loader_require_lossless_support(GtEncseqLoader *el)

Enables support for lossless reproduction of the original sequence in the encoded sequence to be loaded by el. That is, the .ois table must be present. For example, this table is created by having enabled the gt_encseq_encoder_enable_lossless_support() option when encoding. Deactivated by default.


void gt_encseq_loader_drop_lossless_support(GtEncseqLoader *el)

Disables support for lossless reproduction of the original sequence in the encoded sequence to be loaded by el. That is, the .ois table needs not be present. However, disabling this support may result in a reduced alphabet representation when accessing decoded characters.


void gt_encseq_loader_require_md5_support(GtEncseqLoader *el)

Enables support for quick retrieval of the MD5 sums for the sequences in the encoded sequence to be loaded by el. That is, the .md5 table must be present. For example, this table is created by having enabled the gt_encseq_encoder_enable_md5_support() option when encoding. Activated by default.


void gt_encseq_loader_drop_md5_support(GtEncseqLoader *el)

Disables support for quick retrieval of the MD5 sums for the sequences in the encoded sequence to be loaded by el. That is, the .md5 table needs not be present.


void gt_encseq_loader_require_des_tab(GtEncseqLoader *el)

Requires presence of the .des table containing sequence descriptions. Enabled by default.


void gt_encseq_loader_do_not_require_des_tab(GtEncseqLoader *el)

Disables requirement of the .des table for loading a GtEncseq using el.


bool gt_encseq_loader_des_tab_required(const GtEncseqLoader *el)

Returns true if a .des table must be present for loading to succeed.


void gt_encseq_loader_require_ssp_tab(GtEncseqLoader *el)

Requires presence of the .ssp table containing indexes for multiple sequences. Enabled by default.


void gt_encseq_loader_do_not_require_ssp_tab(GtEncseqLoader *el)

Disables requirement of the .ssp table for loading a GtEncseq using el.


bool gt_encseq_loader_ssp_tab_required(const GtEncseqLoader *el)

Returns true if a .ssp table must be present for loading to succeed.


void gt_encseq_loader_require_sds_tab(GtEncseqLoader *el)

Requires presence of the .sds table containing indexes for sequence descriptions. Enabled by default.


void gt_encseq_loader_do_not_require_sds_tab(GtEncseqLoader *el)

Disables requirement of the .sds table for loading a GtEncseq using el.


bool gt_encseq_loader_sds_tab_required(const GtEncseqLoader *el)

Returns true if a .sds table must be present for loading to succeed.


void gt_encseq_loader_set_logger(GtEncseqLoader *el, GtLogger *l)

Sets the logger to use by ee during encoding to l. Default is NULL (no logging).


void gt_encseq_loader_mirror(GtEncseqLoader *el)

Enables loading of a sequence using el with mirroring enabled from the start. Identical to invoking gt_encseq_mirror() directly after loading.


void gt_encseq_loader_do_not_mirror(GtEncseqLoader *el)

Disables loading of a sequence using el with mirroring enabled right from the start.


GtEncseq* gt_encseq_loader_load(GtEncseqLoader *el, const char *indexname, GtError *err)

Attempts to map the index files as specified by indexname using the options set in el using this interface. Returns a GtEncseq instance on success, or NULL on error. If an error occurred, err is set accordingly.


void gt_encseq_loader_delete(GtEncseqLoader *el)

Deletes el.


Class GtEncseqReader

The GtEncseqReader class represents the current state of a sequential scan of a GtEncseq region as an iterator.


void gt_encseq_reader_reinit_with_readmode(GtEncseqReader *esr, const GtEncseq *encseq, GtReadmode readmode, GtUword startpos)

Reinitializes the given esr with the values as described in gt_encseq_create_reader_with_readmode().


GtUchar gt_encseq_reader_next_encoded_char(GtEncseqReader *esr)

Returns the next encoded character from current position of esr, advancing the iterator by one position.


char gt_encseq_reader_next_decoded_char(GtEncseqReader *esr)

Returns the next decoded character from current position of esr, advancing the iterator by one position.


void gt_encseq_reader_delete(GtEncseqReader *esr)

Deletes esr, freeing all associated space.


Class GtError

This class is used for the handling of user errors in GenomeTools. Thereby, the actual GtError object is used to store the error message while it is signaled by the return value of the called function, if an error occurred.

By convention in GenomeTools, the GtError object is always passed into a function as the last parameter and -1 (or NULL for constructors) is used as return value to indicate that an error occurred. Success is usually indicated by 0 as return value or via a non-NULL object pointer for constructors.

It is possible to use NULL as an GtError object, if one is not interested in the actual error message.

Functions which do not get an GtError object cannot fail due to a user error and it is not necessary to check their return code for an error condition.


GtError* gt_error_new(void)

Return a new GtError object


#define gt_error_check(err)

Insert an assertion to check that the error err is not set or is NULL. This macro should be used at the beginning of every routine which has an GtError* argument to make sure the error propagation has been coded correctly.


void gt_error_set(GtError *err, const char *format, ...)

Set the error message stored in err according to format (as in printf(3)).


void gt_error_vset(GtError *err, const char *format, va_list ap)

Set the error message stored in err according to format (as in vprintf(3)).


void gt_error_set_nonvariadic(GtError *err, const char *msg)

Set the error message stored in err to msg.


bool gt_error_is_set(const GtError *err)

Return true if the error err is set, false otherwise.


void gt_error_unset(GtError *err)

Unset the error err.


const char* gt_error_get(const GtError *err)

Return the error string stored in err (the error must be set).


void gt_error_delete(GtError *err)

Delete the error object err.


Class GtExtractFeatureStream

Implements the GtNodeStream interface. A GtExtractFeatureStream extracts the corresponding sequences of features.


GtNodeStream* gt_extract_feature_stream_new(GtNodeStream *in_stream, GtRegionMapping *region_Mapping, const char *type, bool join, bool translate, bool seqid, bool target, GtUword width, GtFile *outfp)

Create a GtExtractFeatureStream* which extracts the corresponding sequences of feature nodes (of the given type) it retrieves from in_stream and writes them in FASTA format (with the given width) to outfp. If join is true, features of the given type are joined together before the sequence is extracted. If translate is true, the sequences are translated into amino acid sequences before they are written to outfp. If seqid is true the sequence IDs of the extracted features are added to the FASTA header. If target is true the target IDs of the extracted features are added to the FASTA header. Takes ownership of region_mapping!


Class GtFeatureInStream

GtNodeStream* gt_feature_in_stream_new(GtFeatureIndex *fi)

Create a new GtFeatureInStream using the given GtFeatureIndex as the source of a node stream.


void gt_feature_in_stream_use_orig_ranges(GtFeatureInStream *stream)

Instruct stream to deliver GtRegionNode objects whose ranges are specified such as with ##sequence-region pragmas, rather than those inferred from the features. Specifically, use gt_feature_index_get_orig_range_for_seqid on the underlying feature index rather than the default gt_feature_index_get_range_for_seqid.


Class GtFeatureIndex

This interface represents a searchable container for GtFeatureNode objects, typically root nodes of larger structures. How storage and searching takes place is left to the discretion of the implementing class.

Output from a gt_feature_index_get_features_*() method should always be sorted by feature start position.


int gt_feature_index_add_region_node(GtFeatureIndex *feature_index, GtRegionNode *region_node, GtError *err)

Add region_node to feature_index.


int gt_feature_index_add_feature_node(GtFeatureIndex *feature_index, GtFeatureNode *feature_node, GtError *err)

Add feature_node to feature_index, associating it with a sequence region denoted by its identifier string.


int gt_feature_index_remove_node(GtFeatureIndex *feature_index, GtFeatureNode *node, GtError *err)

Removes node genome_node from feature_index.


int gt_feature_index_add_gff3file(GtFeatureIndex *feature_index, const char *gff3file, GtError *err)

Add all features contained in gff3file to feature_index, if gff3file is valid. Otherwise, feature_index is not changed and err is set.


GtArray* gt_feature_index_get_features_for_seqid(GtFeatureIndex*, const char *seqid, GtError *err)

Returns an array of GtFeatureNodes associated with a given sequence region identifier seqid.


int gt_feature_index_get_features_for_range(GtFeatureIndex *feature_index, GtArray *results, const char *seqid, const GtRange *range, GtError*)

Look up genome features in feature_index for sequence region seqid in range and store them in results.


char* gt_feature_index_get_first_seqid(const GtFeatureIndex *feature_index, GtError *err)

Returns the first sequence region identifier added to feature_index.


GtStrArray* gt_feature_index_get_seqids(const GtFeatureIndex *feature_index, GtError *err)

Returns a GtStrArray of all sequence region identifiers contained in feature_index (in alphabetical order).


int gt_feature_index_get_range_for_seqid(GtFeatureIndex *feature_index, GtRange *range, const char *seqid, GtError *err)

Writes the range of all features contained in the feature_index for region identifier seqid to the GtRange pointer range.


int gt_feature_index_get_orig_range_for_seqid(GtFeatureIndex *feature_index, GtRange *range, const char *seqid, GtError *err)

Writes the range of the whole sequence region contained in the feature_index for region identifier seqid to the GtRange pointer range.


int gt_feature_index_has_seqid(const GtFeatureIndex *feature_index, bool *has_seqid, const char *seqid, GtError *err)

Returns has_seqid to true if the sequence region identified by seqid has been registered in the feature_index.


int gt_feature_index_save(GtFeatureIndex *feature_index, GtError *err)

Calls the save function for the given feature_index. The save functions must be defined, otherwise the method fails with an assertion (for example, the memory based feature index does not have a save function) .


void gt_feature_index_delete(GtFeatureIndex*)

Deletes the feature_index and all its referenced features.


int gt_feature_index_gfflike_get_all_features(GtFeatureIndex *gfi, GtArray *results, GtError *err)

Retrieves all features contained in gfi into results. Returns 0 on success, a negative value otherwise. The message in err is set accordingly.


Class GtFeatureIndexMemory

The GtFeatureIndexMemory class implements a GtFeatureIndex in memory. Features are organized by region node. Each region node collects its feature nodes in an interval tree structure, which allows for efficient range queries.


GtFeatureIndex* gt_feature_index_memory_new(void)

Creates a new GtFeatureIndexMemory object.


GtFeatureNode* gt_feature_index_memory_get_node_by_ptr(GtFeatureIndexMemory*, GtFeatureNode *ptr, GtError *err)

Returns ptr if it is a valid node indexed in GtFeatureIndexMemory. Otherwise NULL is returned and err is set accordingly.


Class GtFeatureNode

Implements the GtGenomeNode interface. A single feature node corresponds to a GFF3 feature line (i.e., a line which does not start with #). Part-of relationships (which are realized in GFF3 with the Parent and ID attributes) are realized in the C API with the gt_feature_node_add_child() method.

Besides the ``mere'' feature nodes two ``special'' feature nodes exist: multi-features and pseudo-features.

Multi-features represent features which span multiple lines (it is indicated in GFF3 files by the fact, that each line has the same ID attribute).

To check if a feature is a multi-feature use the method gt_feature_node_is_multi(). Multi-features are connected via a ``representative''. That is, two features are part of the same multi-feature if they have the same representative. The feature node representative can be be retrieved via the gt_feature_node_get_multi_representative() method.

Pseudo-features became a technical necessity to be able to pass related top-level features as a single entity through the streaming machinery. There are two cases in which a pseudo-feature has to be introduced.

First, if a multi-feature has no parent. In this case all features which comprise the multi-feature become the children of a pseudo-feature.

Second, if two or more top-level features have the same children (and are thereby connected). In this case all these top-level features become the children of a pseudo-feature.

It should be clear from the explanation above that pseudo-features make only sense as top-level features (a fact which is enforced in the code).

Pseudo-features are typically ignored during a traversal to give the illusion that they do not exist.


GtGenomeNode* gt_feature_node_new(GtStr *seqid, const char *type, GtUword start, GtUword end, GtStrand strand)

Return an new GtFeatureNode object on sequence with ID seqid and type type which lies from start to end on strand strand. The GtFeatureNode* stores a new reference to seqid, so make sure you do not modify the original seqid afterwards! start and end always refer to the forward strand, therefore start has to be smaller or equal than end.


GtGenomeNode* gt_feature_node_new_pseudo(GtStr *seqid, GtUword start, GtUword end, GtStrand strand)

Return a new pseudo-GtFeatureNode object on sequence with ID seqid which lies from start to end on strand strand. Pseudo-features do not have a type. The GtFeatureNode stores a new reference to seqid, so make sure you do not modify the original seqid afterwards. start and end always refer to the forward strand, therefore start has to be smaller or equal than end.


GtGenomeNode* gt_feature_node_new_pseudo_template(GtFeatureNode *feature_node)

Return a new pseudo-GtFeatureNode object which uses feature_node as template. That is, the sequence ID, range, strand, and source are taken from feature_node.


GtGenomeNode* gt_feature_node_new_standard_gene(void)

Return the ``standard gene'' (mainly for testing purposes).


void gt_feature_node_add_child(GtFeatureNode *parent, GtFeatureNode *child)

Add child feature node to parent feature node. parent takes ownership of child.


const char* gt_feature_node_get_source(const GtFeatureNode *feature_node)

Return the source of feature_node. If no source has been set, "." is returned. Corresponds to column 2 of GFF3 feature lines.


void gt_feature_node_set_source(GtFeatureNode *feature_node, GtStr *source)

Set the source of feature_node. Stores a new reference to source. Corresponds to column 2 of GFF3 feature lines.


bool gt_feature_node_has_source(const GtFeatureNode *feature_node)

Return true if feature_node has a defined source (i.e., on different from "."). false otherwise.


const char* gt_feature_node_get_type(const GtFeatureNode *feature_node)

Return the type of feature_node. Corresponds to column 3 of GFF3 feature lines.


void gt_feature_node_set_type(GtFeatureNode *feature_node, const char *type)

Set the type of feature_node to type.


bool gt_feature_node_has_type(GtFeatureNode *feature_node, const char *type)

Return true if feature_node has given type, false otherwise.


GtUword gt_feature_node_number_of_children(const GtFeatureNode *feature_node)

Return the number of children for given feature_node.


GtUword gt_feature_node_number_of_children_of_type(const GtFeatureNode *parent, const GtFeatureNode *node)

Return the number of children of type node for given GtFeatureNode parent.


bool gt_feature_node_score_is_defined(const GtFeatureNode *feature_node)

Return true if the score of feature_node is defined, false otherwise.


float gt_feature_node_get_score(const GtFeatureNode *feature_node)

Return the score of feature_node. The score has to be defined. Corresponds to column 6 of GFF3 feature lines.


void gt_feature_node_set_score(GtFeatureNode *feature_node, float score)

Set the score of feature_node to score.


void gt_feature_node_unset_score(GtFeatureNode *feature_node)

Unset the score of feature_node.


GtStrand gt_feature_node_get_strand(const GtFeatureNode *feature_node)

Return the strand of feature_node. Corresponds to column 7 of GFF3 feature lines.


void gt_feature_node_set_strand(GtFeatureNode *feature_node, GtStrand strand)

Set the strand of feature_node to strand.


GtPhase gt_feature_node_get_phase(const GtFeatureNode *feature_node)

Return the phase of feature_node. Corresponds to column 8 of GFF3 feature lines.


void gt_feature_node_set_phase(GtFeatureNode *feature_node, GtPhase phase)

Set the phase of feature_node to phase.


const char* gt_feature_node_get_attribute(const GtFeatureNode *feature_node, const char *name)

Return the attribute of feature_node with the given name. If no such attribute has been added, NULL is returned. The attributes are stored in column 9 of GFF3 feature lines.


GtStrArray* gt_feature_node_get_attribute_list(const GtFeatureNode *feature_node)

Return a string array containing the used attribute names of feature_node. The caller is responsible to free the returned GtStrArray*.


void gt_feature_node_add_attribute(GtFeatureNode *feature_node, const char *tag, const char *value)

Add attribute tag=value to feature_node. tag and value must at least have length 1. feature_node must not contain an attribute with the given tag already. You should not add Parent and ID attributes, use gt_feature_node_add_child() to denote part-of relationships.


void gt_feature_node_set_attribute(GtFeatureNode* feature_node, const char *tag, const char *value)

Set attribute tag to new value in feature_node, if it exists already. Otherwise the attribute tag=value is added to feature_node. tag and value must at least have length 1. You should not set Parent and ID attributes, use gt_feature_node_add_child() to denote part-of relationships.


void gt_feature_node_remove_attribute(GtFeatureNode* feature_node, const char *tag)

Remove attribute tag from feature_node. feature_node must contain an attribute with the given tag already! You should not remove Parent and ID attributes.


void GtFeatureNodeAttributeIterFunc(const char *attr_name, const char *attr_value, void *data)

Delivers the key (in attr_name)and value (in attr_value) of an attribute. The data parameter carries over arbitrary user data from the gt_feature_node_foreach_attribute call.


void gt_feature_node_foreach_attribute(GtFeatureNode *feature_node, GtFeatureNodeAttributeIterFunc func, void *data)

Calls func for each attribute in feature_node. Use data to forward arbitrary data during traversal.


bool gt_feature_node_is_multi(const GtFeatureNode *feature_node)

Return true if feature_node is a multi-feature, false otherwise.


bool gt_feature_node_is_pseudo(const GtFeatureNode *feature_node)

Return true if feature_node is a pseudo-feature, false otherwise.


void gt_feature_node_make_multi_representative(GtFeatureNode *feature_node)

Make feature_node the representative of a multi-feature. Thereby feature_node becomes a multi-feature.


void gt_feature_node_set_multi_representative(GtFeatureNode *feature_node, GtFeatureNode *representative)

Set the multi-feature representative of feature_node to representative. Thereby feature_node becomes a multi-feature.


void gt_feature_node_unset_multi(GtFeatureNode *feature_node)

Unset the multi-feature status of feature_node and remove its multi-feature representative.


GtFeatureNode* gt_feature_node_get_multi_representative(GtFeatureNode *feature_node)

Return the representative of the multi-feature feature_node.


bool gt_feature_node_is_similar(const GtFeatureNode *feature_node_a, const GtFeatureNode *feature_node_b)

Returns true, if the given feature_node_a has the same seqid, feature type, range, strand, and phase as feature_node_b. Returns false otherwise.


void gt_feature_node_mark(GtFeatureNode*)

Marks the given feature_node.


void gt_feature_node_unmark(GtFeatureNode*)

If the given feature_node is marked it will be unmarked.


bool gt_feature_node_contains_marked(GtFeatureNode *feature_node)

Returns true if the given feature_node graph contains a marked node.


bool gt_feature_node_is_marked(const GtFeatureNode *feature_node)

Returns true if the (top-level) feature_node is marked.


void gt_feature_node_remove_leaf(GtFeatureNode *tree, GtFeatureNode *leafn)

Removes the parent-child relationship between the leaf node leafn and a parent node tree. tree needs not be the direct parent of the leafn. Note that leafn is freed, use gt_genome_node_ref() to increase the reference count if deletion is not wanted. As a side effect, the tree property of tree is set back to an undefined state.


GtFeatureNode* gt_feature_node_try_cast(GtGenomeNode *gn)

Test whether the given genome node is a feature node. If so, a pointer to the feature node is returned. If not, NULL is returned. Note that in most cases, one should implement a GtNodeVisitor to handle processing of different GtGenomeNode types.


GtFeatureNode* gt_feature_node_cast(GtGenomeNode *gn)

Test whether the given genome node is a feature node. If so, a pointer to the feature node is returned. If not, an assertion fails.


Class GtFeatureNodeIterator

GtFeatureNodeIterator* gt_feature_node_iterator_new(const GtFeatureNode *feature_node)

Return a new GtFeatureNodeIterator* which performs a depth-first traversal of feature_node (including feature_node itself). It ignores pseudo-features.


GtFeatureNodeIterator* gt_feature_node_iterator_new_direct(const GtFeatureNode *feature_node)

Return a new GtFeatureNodeIterator* which iterates over all direct children of feature_node (without feature_node itself).


GtFeatureNode* gt_feature_node_iterator_next(GtFeatureNodeIterator *feature_node_iterator)

Return the next GtFeatureNode* in feature_node_iterator or NULL if none exists.


void gt_feature_node_iterator_delete(GtFeatureNodeIterator *feature_node_iterator)

Delete feature_node_iterator.


Class GtFeatureOutStream

GtNodeStream* gt_feature_out_stream_new(GtNodeStream*, GtFeatureIndex *fi)

Create a new GtFeatureOutStream which writes all passed nodes to GtFeatureIndex fi.


Class GtFeatureStream

GtNodeStream* gt_feature_stream_new(GtNodeStream*, GtFeatureIndex *fi)

Create a new GtFeatureStream which writes all passed nodes to GtFeatureIndex fi. Note: The GtFeatureStream class is now deprecated. Please use the GtFeatureOutStream class instead.


Class GtFile

This class defines (generic) files in GenomeTools. A generic file is is a file which either uncompressed or compressed (with gzip or bzip2). A NULL-pointer as generic file implies stdout.


GtFile* gt_file_new(const char *path, const char *mode, GtError *err)

Return a new GtFile object for the given path and open the underlying file handle with given mode. Returns NULL and sets err accordingly, if the file path could not be opened. The compression mode is determined by the ending of path (gzip compression if it ends with '.gz', bzip2 compression if it ends with '.bz2', and uncompressed otherwise).


GtFile* gt_file_ref(GtFile *file)

Increments the reference count of file.


GtFile* gt_file_new_from_fileptr(FILE *fp)

Create a new GtFile object from a normal file pointer fp.


void gt_file_xprintf(GtFile *file, const char *format, ...)

printf(3) for generic file.


void gt_file_xfputs(const char *cstr, GtFile *file)

Write \0-terminated C string cstr to file. Similar to fputs(3), but terminates on error.


void gt_file_xfputc(int c, GtFile *file)

Write single character c to file. Similar to fputc(3), but terminates on error.


int gt_file_xfgetc(GtFile *file)

Return next character from file or EOF, if end-of-file is reached.


int gt_file_xread(GtFile *file, void *buf, size_t nbytes)

Read up to nbytes from generic file and store result in buf, returns bytes read.


void gt_file_xwrite(GtFile *file, void *buf, size_t nbytes)

Write nbytes from buf to given generic file.


void gt_file_xrewind(GtFile *file)

Rewind the generic file.


void gt_file_delete(GtFile *file)

Close the underlying file handle and destroy the file object.


void gt_file_delete_without_handle(GtFile*)

Destroy the file handle object, but do not close the underlying handle.


Class GtGFF3InStream

Implements the GtNodeStream interface. A GtGFF3InStream parses GFF3 files and returns them as a stream of GtGenomeNode objects.


GtNodeStream* gt_gff3_in_stream_new_unsorted(int num_of_files, const char **filenames)

Return a GtGFF3InStream object which subsequently reads the num_of_files many GFF3 files denoted in filenames. The GFF3 files do not have to be sorted. If num_of_files is 0 or a file name is "-", it is read from stdin. The memory footprint is O(file size) in the worst-case.


GtNodeStream* gt_gff3_in_stream_new_sorted(const char *filename)

Create a GtGFF3InStream* which reads the sorted GFF3 file denoted by filename. If filename is NULL, it is read from stdin. The memory footprint is O(1) on average.


void gt_gff3_in_stream_check_id_attributes(GtGFF3InStream *gff3_in_stream)

Make sure all ID attributes which are parsed by gff3_in_stream are correct. Increases the memory footprint to O(file size).


void gt_gff3_in_stream_enable_tidy_mode(GtGFF3InStream *gff3_in_stream)

Enable tidy mode for gff3_in_stream. That is, the GFF3 parser tries to tidy up features which would normally lead to an error.


void gt_gff3_in_stream_enable_strict_mode(GtGFF3InStream *gff3_in_stream)

Enable strict mode for gff3_in_stream.


void gt_gff3_in_stream_show_progress_bar(GtGFF3InStream *gff3_in_stream)

Show progress bar on stdout to convey the progress of parsing the GFF3 files underlying gff3_in_stream.


GtStrArray* gt_gff3_in_stream_get_used_types(GtNodeStream *gff3_in_stream)

Returns a GtStrArray* which contains all type names in alphabetical order which have been parsed by gff3_in_stream. The caller is responsible to free it!


void gt_gff3_in_stream_set_type_checker(GtNodeStream *gff3_in_stream, GtTypeChecker *type_checker)

Sets type_checker to be the type checker used in gff3_in_stream. That is, it will be queried when the validity of SO types is to be determined.


Class GtGFF3OutStream

Implements the GtNodeStream interface. A GtGFF3OutStream produces GFF3 output. It automatically inserts termination lines at the appropriate places.


GtNodeStream* gt_gff3_out_stream_new(GtNodeStream *in_stream, GtFile *outfp)

Create a GtGFF3OutStream* which uses in_stream as input. It shows the nodes passed through it as GFF3 on outfp.


void gt_gff3_out_stream_set_fasta_width(GtGFF3OutStream *gff3_out_stream, GtUword fasta_width)

Set the width with which the FASTA sequences of GtSequenceNodes passed through gff3_out_stream are shown to fasta_width. Per default, each FASTA entry is shown on a single line.


void gt_gff3_out_stream_retain_id_attributes(GtGFF3OutStream *gff3_out_stream)

If this method is called upon gff3_out_stream, use the original ID attributes provided in the input (instead of creating new ones, which is the default). Memory consumption for gff3_out_stream is raised from O(1) to O(input_size), because bookkeeping of used IDs becomes necessary to avoid ID collisions.


Class GtGFF3Parser

A GtGFF3Parser can be used to parse GFF3 files and convert them into GtGenomeNode objects. If the GFF3 files do not contain the encouraged sequence-region meta directives, the GFF3 parser introduces the corresponding region nodes automatically. This is a low-level class and it is usually not used directly. Normally, a GtGFF3InStream is used to parse GFF3 files.


GtGFF3Parser* gt_gff3_parser_new(GtTypeChecker *type_checker)

Return a new GtGFF3Parser object with optional type_checker. If a type_checker was given, the GtGFF3Parser stores a new reference to it internally and uses the type_checker to check types during parsing.


void gt_gff3_parser_check_id_attributes(GtGFF3Parser *gff3_parser)

Enable ID attribute checking in gff3_parser. Thereby, the memory consumption of the gff3_parser becomes proportional to the input file size(s).


void gt_gff3_parser_check_region_boundaries(GtGFF3Parser *gff3_parser)

Enable sequence region boundary checking in gff3_parser. That is, encountering features outside the sequence region boundaries will result in an error.


void gt_gff3_parser_do_not_check_region_boundaries(GtGFF3Parser *gff3_parser)

Disable sequence region boundary checking in gff3_parser. That is, features outside the sequence region boundaries will be permitted.


void gt_gff3_parser_set_offset(GtGFF3Parser *gff3_parser, GtWord offset)

Transform all features parsed by gff3_parser by the given offset.


void gt_gff3_parser_set_type_checker(GtGFF3Parser *gff3_parser, GtTypeChecker *type_checker)

Set type_checker used by gff3_parser.


void gt_gff3_parser_set_xrf_checker(GtGFF3Parser *gff3_parser, GtXRFChecker *xrf_checker)

Set xrf_checker used by gff3_parser.


void gt_gff3_parser_enable_tidy_mode(GtGFF3Parser *gff3_parser)

Enable the tidy mode in gff3_parser. In tidy mode the gff3_parser parser tries to tidy up features which would normally lead to a parse error.


int gt_gff3_parser_parse_genome_nodes(GtGFF3Parser *gff3_parser, int *status_code, GtQueue *genome_nodes, GtCstrTable *used_types, GtStr *filenamestr, GtUint64 *line_number, GtFile *fpin, GtError *err)

Use gff3_parser to parse genome nodes from file pointer fpin. status_code is set to 0 if at least one genome node was created (and stored in genome_nodes) and to EOF if no further genome nodes could be parsed from fpin. Every encountered (genome feature) type is recorded in the C string table used_types. The parser uses the given filenamestr to store the file name of fpin in the created genome nodes or to give the correct filename in error messages, if necessary. line_number is increased accordingly during parsing and has to be set to 0 before parsing a new fpin. If an error occurs during parsing this method returns -1 and sets err accordingly.


void gt_gff3_parser_reset(GtGFF3Parser *gff3_parser)

Reset the gff3_parser (necessary if the input file is switched).


void gt_gff3_parser_delete(GtGFF3Parser *gff3_parser)

Delete the gff3_parser.


Class GtGFF3Visitor

Implements the GtNodeVisitor interface with a visitor that produces GFF3 output. This is a low-level class and it is usually not used directly. Normally, a GtGFF3OutStream is used to produce GFF3 output.


GtNodeVisitor* gt_gff3_visitor_new(GtFile *outfp)

Create a new GtNodeVisitor* which writes the output it produces to the given output file pointer outfp. If outfp is NULL, the output is written to stdout.


void gt_gff3_visitor_set_fasta_width(GtGFF3Visitor *gff3_visitor, GtUword fasta_width)

Set the width with which the FASTA sequences of GtSequenceNodes visited by gff3_visitor are shown to fasta_width. Per default, each FASTA entry is shown on a single line.


void gt_gff3_visitor_retain_id_attributes(GtGFF3Visitor *gff3_visitor)

Retain the original ID attributes (instead of creating new ones), if possible. Memory consumption for gff3_visitor is raised from O(1) to O(input_size), because bookkeeping of used IDs becomes necessary to avoid ID collisions.


Class GtGTFInStream

Implements the GtNodeStream interface. A GtGTFInStream parses a GTF2.2 file and returns it as a stream of GtGenomeNode objects.


GtNodeStream* gt_gtf_in_stream_new(const char *filename)

Create a GtGTFInStream* which subsequently reads the GTF file with the given filename. If filename equals NULL, the GTF data is read from stdin.


Class GtGTFOutStream

Implements the GtNodeStream interface. A GtGTFOutStream produces GTF2.2 output.


GtNodeStream* gt_gtf_out_stream_new(GtNodeStream *in_stream, GtFile *outfp)

Create a GtNodeStream* which uses in_stream as input. It shows the nodes passed through it as GTF2.2 on outfp.


Class GtGenomeNode

The GtGenomeNode interface. The different implementation of the GtGenomeNode interface represent different parts of genome annotations (as they are usually found in GFF3 files).


GtGenomeNode* gt_genome_node_ref(GtGenomeNode *genome_node)

Increase the reference count for genome_node and return it. genome_node must not be NULL.


GtStr* gt_genome_node_get_seqid(GtGenomeNode *genome_node)

Return the sequence ID of genome_node. Corresponds to column 1 of GFF3 feature lines.


GtRange gt_genome_node_get_range(GtGenomeNode *genome_node)

Return the genomic range of of genome_node. Corresponds to columns 4 and 5 of GFF3 feature lines.


GtUword gt_genome_node_get_start(GtGenomeNode *genome_node)

Return the start of genome_node. Corresponds to column 4 of GFF3 feature lines.


GtUword gt_genome_node_get_end(GtGenomeNode *genome_node)

Return the end of genome_node. Corresponds to column 5 of GFF3 feature lines.


GtUword gt_genome_node_get_length(GtGenomeNode *genome_node)

Return the length of genome_node. Computed from column 4 and 5 of GFF3 feature lines.


const char* gt_genome_node_get_filename(const GtGenomeNode* genome_node)

Return the filename the genome_node was read from. If the node did not originate from a file, an appropriate string is returned.


unsigned int gt_genome_node_get_line_number(const GtGenomeNode*)

Return the line of the source file the genome_node was encountered on (if the node was read from a file, otherwise 0 is returned).


void gt_genome_node_set_range(GtGenomeNode *genome_node, const GtRange *range)

Set the genomic range of genome_node to given range.


void gt_genome_node_add_user_data(GtGenomeNode *genome_node, const char *key, void *data, GtFree free_func)

Attach a pointer to data to the genome_node using a given string as key. free_func is the optional destructor for data.


void* gt_genome_node_get_user_data(const GtGenomeNode *genome_node, const char *key)

Return the pointer attached to the genome_node for a given key.


void gt_genome_node_release_user_data(GtGenomeNode *genome_node, const char *key)

Call the destructor function associated with the user data attached to genome_node under the key on the attached data.


int gt_genome_node_cmp(GtGenomeNode *genome_node_a, GtGenomeNode *genome_node_b)

Compare genome_node_a with genome_node_b and return the result (similar to strcmp(3)). This method is the criterion used to sort genome nodes.


void gt_genome_nodes_sort(GtArray *nodes)

Sort node array nodes


void gt_genome_nodes_sort_stable(GtArray *nodes)

Sort node array nodes in a stable way


int gt_genome_node_accept(GtGenomeNode *genome_node, GtNodeVisitor *node_visitor, GtError *err)

Let genome_node accept the node_visitor. In the case of an error, -1 is returned and err is set accordingly.


void gt_genome_node_delete(GtGenomeNode *genome_node)

Decrease the reference count for genome_node or delete it, if this was the last reference.


Class GtGraphics

The GtGraphics interface acts as a low-level abstraction of a drawing surface. It is used as a common drawing object in GtCanvas and GtCustomTrack implementations and supports a variety of drawing operations for both text and basic primitive shapes.


void gt_graphics_draw_text(GtGraphics*, double x, double y, const char*)

Draws text in black to the right of (x,y). The coordinate y is used as a baseline.


void gt_graphics_draw_text_clip(GtGraphics*, double x, double y, const char*)

Draws text in black to the right of (x,y). The coordinate y is used as a baseline. If the text exceeds the margins, it is clipped.


#define gt_graphics_draw_text_left(g,x,y,t)

Synonym to gt_graphics_draw_text()


void gt_graphics_draw_text_centered(GtGraphics*, double x, double y, const char*)

Draws text in black centered at (x,y). The coordinate y is used as a baseline.


void gt_graphics_draw_text_right(GtGraphics*, double x, double y, const char*)

Draws text in black to the left of (x,y). The coordinate y is used as a baseline.


void gt_graphics_draw_colored_text(GtGraphics*, double x, double y, GtColor, const char*)

Draws text in a given GtColor to the right of (x,y). The coordinate y is used as a baseline.


double gt_graphics_get_text_height(GtGraphics*)

Returns the height of a capital letter in pixels/points.


int gt_graphics_set_background_color(GtGraphics*, GtColor)

Sets the background color of the GtGraphics to a specific color. Note that this may only be supported for bitmap output formats.


double gt_graphics_get_text_width(GtGraphics*, const char *text)

Returns the width of the given string in pixels/points.


void gt_graphics_set_font(GtGraphics *g, const char *family, FontSlant slant, FontWeight weight, double size)

Sets basic font family, slant and weight options. Font families are implementation-specific, e.g. in Cairo there is no operation to list available family names on the system, but the standard CSS2 generic family names, ("serif", "sans-serif", "cursive", "fantasy", "monospace"), are likely to work as expected.


double gt_graphics_get_image_width(GtGraphics*)

Returns the width of the image in pixels/points.


double gt_graphics_get_image_height(GtGraphics*)

Returns the height of the image in pixels/points.


void gt_graphics_set_margins(GtGraphics*, double margin_x, double margin_y)

Set margins (space to the image boundaries that are clear of elements) in the graphics. margin_x denotes the Margin to the left and right, in pixels. margin_y denotes the Margin to the top and bottom, in pixels.


double gt_graphics_get_xmargins(GtGraphics*)

Returns the horizontal margins in pixels/points.


double gt_graphics_get_ymargins(GtGraphics*)

Returns the vertical margins in pixels/points.


void gt_graphics_draw_horizontal_line(GtGraphics *g, double x, double y, GtColor color, double width, double stroke_width)

Draws a horizontal line of length width beginning at the given coordinates to the right in the color color with stroke width stroke_width.


void gt_graphics_draw_vertical_line(GtGraphics *g, double x, double y, GtColor color, double length, double stroke_width)

Draws a vertical line of length length beginning at the given coordinates downwards in the color color with stroke width stroke_width.


void gt_graphics_draw_line(GtGraphics *g, double x, double y, double xto, double yto, GtColor color, double stroke_width)

Draws a line beginning at (x,y) to (xto,yto) in the color color with stroke width stroke_width.


void gt_graphics_draw_box(GtGraphics*, double x, double y, double width, double height, GtColor fill_color, ArrowStatus arrow_status, double arrow_width, double stroke_width, GtColor stroke_color, bool dashed)

Draws a arrow-like box glyph at (x,y) where these are the top left coordinates. The box extends width pixels (incl. arrowhead) into the x direction and height pixels into the y direction. It will be filled with fill_color and stroked with width stroke_width and color stroke_color. The width of the arrowhead is given by the arrow_width parameter. The arrow_status parameter determines whether an arrowhead will be drawn at the left or right end, both ends, or none. If dashed is set to true, then the outline will be dashed instead of solid.


void gt_graphics_draw_dashes(GtGraphics*, double x, double y, double width, double height, ArrowStatus arrow_status, double arrow_width, double stroke_width, GtColor stroke_color)

Draws a transparent box with a dashed line at the center at (x,y) (where these are the top left coordinates). The box extends width pixels (incl. arrowhead) into the x direction and height pixels into the y direction. It will be stroked with width stroke_width and color stroke_color. The width of the arrowhead is given by the arrow_width parameter. The arrow_status parameter determines whether an arrowhead will be drawn at the left or right end, both ends, or none.


void gt_graphics_draw_caret(GtGraphics*, double x, double y, double width, double height, ArrowStatus arrow_status, double arrow_width, double stroke_width, GtColor stroke_color)

Draws a caret (``hat'') style glyph at (x,y) (where these are the top left coordinates). The box extends width pixels (incl. arrowhead) into the x direction and height pixels into the y direction. It will be stroked with width stroke_width and color stroke_color. The width of the arrowhead is given by the arrow_width parameter. The arrow_status parameter determines whether an arrowhead will be drawn at the left or right end, both ends, or none.


void gt_graphics_draw_rectangle(GtGraphics*, double x, double y, bool filled, GtColor fill_color, bool stroked, GtColor stroke_color, double stroke_width, double width, double height)

Draws a rectangle at (x,y) where these are the top left coordinates. The rectangle extends width pixels (incl. arrowhead) into the x direction and height pixels into the y direction. It will be filled with fill_color if filled is set to true and stroked with width stroke_width and color stroke_color if stroked is set to true.


void gt_graphics_draw_arrowhead(GtGraphics*, double x, double y, GtColor, ArrowStatus arrow_status)

Draws an arrowhead at (x,y) where these are the top left coordinates. The direction is determined by the arrow_status parameter.


void gt_graphics_draw_curve_data(GtGraphics *g, double x, double y, GtColor color, double data[], GtUword ndata, GtRange valrange, GtUword height)

Draws a curve over the full visible image width (without margins) at (x,y) where these are the top left coordinates. As input, the array of double values data with ndata data points is used. The valrange gives the minimum and maximum value of the displayed data. If a value outside the data range is encountered, the drawing will be stopped at this data point.


int gt_graphics_save_to_file(const GtGraphics*, const char *filename, GtError*)

Write out the GtGraphics object to the given file with filename.


void gt_graphics_save_to_stream(const GtGraphics*, GtStr *stream)

Write out the GtGraphics object to the given stream.


void gt_graphics_delete(GtGraphics*)

Deletes the the GtGraphics object.


Class GtGraphicsCairo

Implements the GtGraphics interface. This implementation uses the Cairo 2D vector graphics library as a drawing back-end.


GtGraphics* gt_graphics_cairo_new(GtGraphicsOutType type, unsigned int width, unsigned int height)

Creates a new GtGraphics object using the Cairo backend. The object is meant for writing a new image of width width and height height to a file or stream. Use type to define the output format.


GtGraphics* gt_graphics_cairo_new_from_context(cairo_t *context, unsigned int width, unsigned int height)

Creates a new GtGraphics object using the Cairo backend. The object is meant for writing on an existing cairo_t context within the boundaries of width width and height height.


void gt_graphics_cairo_draw_curve_data(GtGraphics *gg, double x, double y, GtColor color, double data[], GtUword ndata, GtRange valrange, GtUword height)

Draws a curve in gg at the position x,y for ndata data points as given in data. The data points must be in the range valrange and the resulting graph has the height height in type-dependent units (e.g. pixels).


Class GtHashmap

A hashmap allowing to index any kind of pointer (as a value). As keys, strings or any other pointer can be used.


int GtHashmapVisitFunc(void *key, void *value, void *data, GtError *err)

Callback function when using the gt_hashmap_foreach*() functions. Must return a status code (0 = continue iteration, 1 = stop iteration, 2 = deleted element, 3 = modified key, 4 = redo iteration). Gets called with the key and value of the current hashmap member, and the err object given in the original gt_hashmap_foreach*() call.


GtHashmap* gt_hashmap_new(GtHashType keyhashtype, GtFree keyfree, GtFree valuefree)

Creates a new GtHashmap object of type keyhashtype. If keyfree and/or valuefree are given, they will be used to free the hashmap members when the GtHashmap is deleted. keyhashtype defines how to hash the keys given when using the GtHashmap. GT_HASH_DIRECT uses the key pointer as a basis for the hash function. Equal pointers will refer to the same value. If GT_HASH_STRING is used, the keys will be evaluated as strings and keys will be considered equal if the strings are identical, regardless of their address in memory


GtHashmap* gt_hashmap_ref(GtHashmap *hm)

Increase the reference count of hm.


void* gt_hashmap_get(GtHashmap *hashmap, const void *key)

Return the value stored in hashmap for key or NULL if no such key exists.


void gt_hashmap_add(GtHashmap *hashmap, void *key, void *value)

Set the value stored in hashmap for key to value, overwriting the prior value for that key if present.


void gt_hashmap_remove(GtHashmap *hashmap, const void *key)

Remove the member with key key from hashmap.


int gt_hashmap_foreach_ordered(GtHashmap *hashmap, GtHashmapVisitFunc func, void *data, GtCompare cmp, GtError *err)

Iterate over hashmap in order given by compare function cmp. For each member, func is called (see interface).


int gt_hashmap_foreach(GtHashmap *hashmap, GtHashmapVisitFunc func, void *data, GtError *err)

Iterate over hashmap in arbitrary order. For each member, func is called (see interface).


int gt_hashmap_foreach_in_key_order(GtHashmap *hashmap, GtHashmapVisitFunc func, void *data, GtError *err)

Iterate over hashmap in either alphabetical order (if GtHashType was specified as GT_HASH_STRING) or numerical order (if GtHashType was specified as GT_HASH_DIRECT).


void gt_hashmap_reset(GtHashmap *hashmap)

Reset hashmap by unsetting values for all keys, calling the free function if necessary.


void gt_hashmap_delete(GtHashmap *hashmap)

Delete hashmap, calling the free function if necessary.


Class GtIDToMD5Stream

Implements the GtNodeStream interface. A GtIDToMD5Stream converts ``regular'' sequence IDs to MD5 fingerprints.


GtNodeStream* gt_id_to_md5_stream_new(GtNodeStream *in_stream, GtRegionMapping *region_mapping, bool substitute_target_ids)

Create a GtIDToMD5Stream object which converts ``regular'' sequence IDs from nodes it retrieves from its in_stream to MD5 fingerprints (with the help of the given region_mapping). If substitute_target_ids is true, the IDs of Target attributes are also converted to MD5 fingerprints. Takes ownership of region_mapping!


Class GtImageInfo

The GtImageInfo class is a container for 2D coordinate to GtFeatureNode mappings which could, for example, be used to associate sections of a rendered image with GUI widgets or HTML imagemap areas. This information is given in the form of GtRecMap objects. They are created during the image rendering process and stored inside a GtImageInfo object for later retrieval. Additionally, the rendered width of an image can be obtained via a GtImageInfo method.


GtImageInfo* gt_image_info_new(void)

Creates a new GtImageInfo object.


unsigned int gt_image_info_get_height(GtImageInfo *image_info)

Returns the height of the rendered image (in pixels or points).


GtUword gt_image_info_num_of_rec_maps(GtImageInfo *image_info)

Returns the total number of mappings in image_info.


const GtRecMap* gt_image_info_get_rec_map(GtImageInfo *image_info, GtUword i)

Returns the i-th GtRecMap mapping in image_info.


void gt_image_info_delete(GtImageInfo *image_info)

Deletes image_info and all the GtRecMap objects created by it.


Class GtInterFeatureStream

Implements the GtNodeStream interface. A GtInterFeatureStream inserts new feature nodes between existing feature nodes of a certain type.


GtNodeStream* gt_inter_feature_stream_new(GtNodeStream *in_stream, const char *outside_type, const char *inter_type)

Create a GtInterFeatureStream* which inserts feature nodes of type inter_type between the feature nodes of type outside_type it retrieves from in_stream and returns them.


Class GtIntervalTree

This is an interval tree data structure, implemented according to Cormen et al., Introduction to Algorithms, 2nd edition, MIT Press, Cambridge, MA, USA, 2001


GtIntervalTree* gt_interval_tree_new(GtFree)

Creates a new GtIntervalTree. If a GtFree function is given as an argument, it is applied on the data pointers in all inserted nodes when the GtIntervalTree is deleted.


GtUword gt_interval_tree_size(GtIntervalTree*)

Returns the number of elements in the GtIntervalTree.


GtIntervalTreeNode* gt_interval_tree_find_first_overlapping(GtIntervalTree*, GtUword start, GtUword end)

Returns the first node in the GtIntervalTree which overlaps the given range (from start to end).


void gt_interval_tree_insert(GtIntervalTree *tree, GtIntervalTreeNode *node)

Inserts node node into tree.


void gt_interval_tree_find_all_overlapping(GtIntervalTree*, GtUword start, GtUword end, GtArray*)

Collects data pointers of all GtIntervalTreeNodes in the tree which overlap with the query range (from start to end) in a GtArray.


void gt_interval_tree_iterate_overlapping(GtIntervalTree *it, GtIntervalTreeIteratorFunc func, GtUword start, GtUword end, void *data)

Call func for all GtIntervalTreeNodes in the tree which overlap with the query range (from start to end). Use data to pass in arbitrary user data.


int gt_interval_tree_traverse(GtIntervalTree*, GtIntervalTreeIteratorFunc func, void *data)

Traverses the GtIntervalTree in a depth-first fashion, applying func to each node encountered. The data pointer can be used to reference arbitrary data needed in the GtIntervalTreeIteratorFunc.


void gt_interval_tree_remove(GtIntervalTree*, GtIntervalTreeNode *node)

Removes the entry referenced by node from the GtIntervalTree. The data attached to node is freed according to the free function defined in the tree. Note that the memory pointed to by node can be re-used internally, referencing other data in the tree. Make sure to handle this pointer as expired after calling gt_interval_tree_remove()!


void gt_interval_tree_delete(GtIntervalTree*)

Deletes a GtIntervalTree. If a GtFree function was set in the tree constructor, data pointers specified in the nodes are freed using the given GtFree function.


Class GtIntervalTreeNode

GtIntervalTreeNode* gt_interval_tree_node_new(void *data, GtUword low, GtUword high)

Creates a new GtIntervalTreeNode. Transfers ownership of data to interval tree if inserted into a GtIntervalTree in which a GtIntervalTreeDataFreeFunc is set.


void* gt_interval_tree_node_get_data(GtIntervalTreeNode* node)

Returns a pointer to the data associated with node node.


Class GtLayout

The GtLayout class represents contents (tracks) of a GtDiagram broken up into lines such that a given horizontal space allotment given in pixels or points is used up most efficiently. This is done using the GtLineBreaker and GtTextWidthCalculator classes. As defaults, Cairo-based instances of these classes are used but can be specified separately.

A GtLayout can be queried for the height of the laid out representation and finally be rendered to a GtCanvas.


GtLayout* gt_layout_new(GtDiagram *diagram, unsigned int width, GtStyle*, GtError*)

Creates a new GtLayout object for the contents of diagram. The layout is done for a target image width of width and using the rules in GtStyle object style.


GtLayout* gt_layout_new_with_twc(GtDiagram*, unsigned int width, GtStyle*, GtTextWidthCalculator*, GtError*)

Like gt_layout_new(), but allows use of a different GtTextWidthCalculator implementation.


void gt_layout_set_track_ordering_func(GtLayout *layout, GtTrackOrderingFunc func, void *data)

Sets the GtTrackOrderingFunc comparator function func which defines an order on the tracks contained in layout. This determines the order in which the tracks are drawn vertically. Additional data necessary in the comparator function can be given in data, the caller is responsible to free it.


int gt_layout_get_height(GtLayout *layout, GtUword *result, GtError *err)

Calculates the height of layout in pixels. The height value is written to the location pointed to by result. If an error occurs during the calculation, this function returns -1 and err is set accordingly. Returns 0 on success.


int gt_layout_sketch(GtLayout *layout, GtCanvas *target_canvas, GtError*)

Renders layout on the target_canvas.


void gt_layout_delete(GtLayout*)

Destroys a layout.


Class GtLogger

GtLogger* gt_logger_new(bool enabled, const char *prefix, FILE *target)

Creates a new GtLogger, with logging enabled or not, and prefixing all log entries with prefix (e.g. "debug"). The log output is terminated by a newline. All log output will be written to target.


void gt_logger_enable(GtLogger *logger)

Enable logging on logger.


void gt_logger_disable(GtLogger *logger)

Disable logging on logger.


bool gt_logger_enabled(GtLogger *logger)

Return true if logging is enabled on logger, false otherwise.


FILE* gt_logger_target(GtLogger *logger)

Return logging target of logger.


void gt_logger_set_target(GtLogger *logger, FILE *fp)

Set logging target of logger to fp.


void gt_logger_log_force(GtLogger *logger, const char *format, ...)

Log to target regardless of logging status.


void gt_logger_log(GtLogger *logger, const char *format, ...)

Log to target depending on logging status.


void gt_logger_log_va_force(GtLogger *logger, const char *format, va_list)

Log to target regardless of logging status, using a va_list argument.


void gt_logger_log_va(GtLogger *logger, const char *format, va_list)

Log to target depending on logging status, using a va_list argument.


void gt_logger_delete(GtLogger *logger)

Delete logger.


Class GtMD5Encoder

The GtMD5Encoder class implements a stateful encoder for MD5 hashes for strings build by iterative addition of blocks.


GtMD5Encoder* gt_md5_encoder_new(void)

Returns a new GtMD5Encoder object.


void gt_md5_encoder_add_block(GtMD5Encoder *enc, const char *message, GtUword len)

Processes message of length len (max. block length 64 bytes) to be incorporated in the hash currently represented by enc.


void gt_md5_encoder_finish(GtMD5Encoder *enc, unsigned char *output, char *outstr)

Finishes enc to produce the final MD5 value, written to the 16-byte array output. If outstr is not NULL, a \0-terminated string representation of the hash will be written to the 32-byte string buffer it points to.


void gt_md5_encoder_reset(GtMD5Encoder *enc)

Discards the current state of enc and resets it to represent the MD5 hash of the empty string.


void gt_md5_encoder_delete(GtMD5Encoder *enc)

Deletes enc and frees all associated space.


Class GtMD5ToIDStream

Implements the GtNodeStream interface. A GtMD5ToIDStream converts MD5 fingerprints used as sequence IDs to ``regular'' ones.


GtNodeStream* gt_md5_to_id_stream_new(GtNodeStream *in_stream, GtRegionMapping *region_mapping)

Create a GtMD5toIDStream* which converts MD5 sequence IDs from nodes it retrieves from its in_stream to ``regular'' ones (with the help of the given region_mapping). Takes ownership of region_mapping!


Class GtMatch

The GtMatch interface defines a generic set of functions for a data structure designed to hold matches, that is, two similar locations on two sequences which are further described by additional data specific to the matching engine. Matches have a direction, e.g. direct or reverse (palindromic).


void gt_match_set_seqid1(GtMatch *match, const char *seqid)

Sets the sequence ID of the first sequence involved in the match match to seqid. The string seqid must be null-terminated.


void gt_match_set_seqid1_nt(GtMatch *match, const char *seqid, GtUword len)

Sets the sequence ID of the first sequence involved in the match match to seqid. The string seqid needs not be null-terminated, its length is given by len.


void gt_match_set_seqid2(GtMatch *match, const char *seqid)

Sets the sequence ID of the second sequence involved in the match match to seqid. The string seqid must be null-terminated.


void gt_match_set_seqid2_nt(GtMatch *match, const char *seqid, GtUword len)

Sets the sequence ID of the second sequence involved in the match match to seqid. The string seqid needs not be null-terminated, its length is given by len.


const char* gt_match_get_seqid1(const GtMatch *match)

Returns the sequence ID of the first sequence involved in the match match.


const char* gt_match_get_seqid2(const GtMatch *match)

Returns the sequence ID of the second sequence involved in the match match.


void gt_match_set_range_seq1(GtMatch *match, GtUword start, GtUword end)

Sets the range of the first sequence involved in the match match to start-end.


void gt_match_set_range_seq2(GtMatch *match, GtUword start, GtUword end)

Sets the range of the second sequence involved in the match match to start-end.


void gt_match_get_range_seq1(const GtMatch *match, GtRange *range)

Writes the range of the first sequence involved in the match match to the location pointed to by range. Note: depending on how the matches were produced the resulting range might differ. e.g. Blast hit ranges are 1-Based, not zero based and inclusive i.e. range.end is the last position that is part of the match.


void gt_match_get_range_seq2(const GtMatch *match, GtRange *range)

Writes the range of the second sequence involved in the match match to the location pointed to by range. Note: depending on how the matches were produced the resulting range might differ. e.g. Blast hit ranges are 1-Based, not zero based and inclusive i.e. range.end is the last position that is part of the match.


GtMatchDirection gt_match_get_direction(const GtMatch *match)

Returns the match direction of match.


void gt_match_delete(GtMatch *match)

Deletes the match match, freeing all associated memory.


Class GtMatchBlast

GtMatch* gt_match_blast_new(char *seqid1, char *seqid2, GtUword start_seq1, GtUword start_seq2, GtUword end_seq1, GtUword end_seq2, double evalue, float bitscore, GtUword ali_l, double similarity, GtMatchDirection dir)

Creates a new GtMatch object meant to store results in the BLAST format. That is, it stores double values evalue for match E-values, bitscores and the alignment length ali_l in addition to the generic match contents seqid1, seqid2, start_seq1, start_seq2, end_seq1, and end_seq2.


void gt_match_blast_set_evalue(GtMatchBlast *mb, double evalue)

Sets evalue to be the E-value in mb.


void gt_match_blast_set_bitscore(GtMatchBlast *mb, float bits)

Sets bits to be the bit-score in mb.


void gt_match_blast_set_align_length(GtMatchBlast *mb, GtUword length)

Sets length to be the alignment length in mb.


void gt_match_blast_set_similarity(GtMatchBlast *mb, double similarity)

Sets similarity to be the match similarity in mb.


double gt_match_blast_get_evalue(GtMatchBlast *mb)

Returns the E-value stored in mb.


float gt_match_blast_get_bitscore(GtMatchBlast *mb)

Returns the bit-score value stored in mb.


GtUword gt_match_blast_get_align_length(GtMatchBlast *mb)

Returns the alignment length stored in mb.


double gt_match_blast_get_similarity(GtMatchBlast *mb)

Returns the alignment similarity stored in mb.


Class GtMatchIterator

GtMatchIteratorStatus gt_match_iterator_next(GtMatchIterator *mp, GtMatch **match, GtError *err)

Advances mp by one, returning the next match. Writes a pointer to the next match to the position pointed to by match. Returns GT_MATCHER_STATUS_OK when the match could be delivered and there are more matches to come, GT_MATCHER_STATUS_END when no more matches are available, and GT_MATCHER_STATUS_ERROR if an error occurred. err is set accordingly.


void gt_match_iterator_delete(GtMatchIterator *mp)

Deletes mp, freeing all associated space.


Class GtMatchLAST

The GtMatchLAST class, implementing the GtMatch interface, is meant to store results given in the format as output by LAST.


GtMatch* gt_match_last_new(const char *seqid1, const char *seqid2, GtUword score, GtUword seqno1, GtUword seqno2, GtUword start_seq1, GtUword start_seq2, GtUword end_seq1, GtUword end_seq2, GtMatchDirection dir)

Creates a new GtMatch object meant to store results from the LAST software.


GtUword gt_match_last_get_seqno1(const GtMatchLAST *ml)

Returns the sequence number of the match ms in the first sequence set.


GtUword gt_match_last_get_seqno2(const GtMatchLAST *ml)

Returns the sequence number of the match ms in the second sequence set.


GtUword gt_match_last_get_score(const GtMatchLAST *ml)

Returns the LAST score of the match ms.


Class GtMatchOpen

The GtMatchOpen class, implementing the GtMatch interface, is meant to store results in the OpenMatch format, e.g. as output by Vmatch.


GtMatch* gt_match_open_new(char *seqid1, char *seqid2, GtUword start_seq1, GtUword start_seq2, GtUword end_seq1, GtUword end_seq2, GtWord weight, GtMatchDirection dir)

Creates a new GtMatchOpen object, storing long values weight in addition to the generic match contents seqid1, seqid2, start_seq1, start_seq2, end_seq1, and end_seq2.


void gt_match_open_set_weight(GtMatchOpen *mo, GtWord weight)

Sets weight to be the weight value in mo.


GtWord gt_match_open_get_weight(GtMatchOpen *mo)

Returns the weight value stored in mo.


Class GtMatchSW

The GtMatchSW class, implementing the GtMatch interface, is meant to store results from Smith-Waterman matching (using the swalign module).


GtMatch* gt_match_sw_new(const char *seqid1, const char *seqid2, GtUword seqno1, GtUword seqno2, GtUword length, GtUword edist, GtUword start_seq1, GtUword start_seq2, GtUword end_seq1, GtUword end_seq2, GtMatchDirection dir)

Creates a new GtMatch object, storing the alignment length length, the edit distance edist and the sequence numbers in the sequence collections in addition to the generic match contents seqid1, seqid2, start_seq1, start_seq2, end_seq1 and end_seq2.


GtUword gt_match_sw_get_seqno1(const GtMatchSW *ms)

Returns the sequence number of the match ms in the first sequence set.


GtUword gt_match_sw_get_seqno2(const GtMatchSW *ms)

Returns the sequence number of the match ms in the second sequence set.


GtUword gt_match_sw_get_alignment_length(const GtMatchSW *ms)

Returns the alignment length of the match ms.


GtUword gt_match_sw_get_edist(const GtMatchSW *ms)

Returns the edit distance of the match ms.


Class GtMatchVisitor

The GtMatchVisitor class allows one to distinguish a GtMatch implementation, e.g. BLAST or OpenMatch, and to call different code for each implementation.


int gt_match_visitor_visit_match_blast(GtMatchVisitor *match_visitor, GtMatchBlast *match_blast, GtError *err)

Visit match_blast with match_visitor.


int gt_match_visitor_visit_match_open(GtMatchVisitor *match_visitor, GtMatchOpen *match_open, GtError *err)

Visit match_open with match_visitor.


void gt_match_visitor_delete(GtMatchVisitor *match_visitor)

Deletes match_visitor freeing all associated space.


Class GtMergeFeatureStream

Implements the GtNodeStream interface. A GtMergeFeatureStream merges adjacent features of the same type.


GtNodeStream* gt_merge_feature_stream_new(GtNodeStream *in_stream)

Create a GtMergeFeatureStream* which merges adjacent features of the same type it retrieves from in_stream and returns them (and all other unmodified features).


Class GtMergeStream

Implements the GtNodeStream interface. A GtMergeStream allows one to merge a set of sorted streams in a sorted fashion.


GtNodeStream* gt_merge_stream_new(const GtArray *node_streams)

Create a GtMergeStream* which merges the given (sorted) node_streams in a sorted fashion.


Class GtMetaNode

Implements the GtGenomeNode interface. Meta nodes correspond to meta lines in GFF3 files (i.e., lines which start with ``##'') which are not sequence-region lines.


GtGenomeNode* gt_meta_node_new(const char *meta_directive, const char *meta_data)

Return a new GtMetaNode object representing a meta_directive with the corresponding meta_data. Please note that the leading ``##'' which denotes meta lines in GFF3 files should not be part of the meta_directive. The meta_directive must not be NULL, the meta_data can be NULL.


const char* gt_meta_node_get_directive(const GtMetaNode *meta_node)

Return the meta directive stored in meta_node.


const char* gt_meta_node_get_data(const GtMetaNode *meta_node)

Return the meta data stored in meta_node. Can return NULL!


GtMetaNode* gt_meta_node_try_cast(GtGenomeNode *gn)

Test whether the given genome node is a meta node. If so, a pointer to the meta node is returned. If not, NULL is returned. Note that in most cases, one should implement a GtNodeVisitor to handle processing of different GtGenomeNode types.


GtMetaNode* gt_meta_node_cast(GtGenomeNode *gn)

Test whether the given genome node is a meta node. If so, a pointer to the meta node is returned. If not, an assertion fails.


Class GtMutex

The GtMutex class represents a simple mutex structure.


GtMutex* gt_mutex_new(void)

Return a new GtMutex* object.


void gt_mutex_delete(GtMutex *mutex)

Delete the given mutex.


#define gt_mutex_lock(mutex)

Lock the given mutex.


#define gt_mutex_unlock(mutex)

Unlock the given mutex.


Class GtNodeStream

The GtNodeStream interface. GtNodeStream objects process GtGenomeNode objects in a pull-based architecture and can be chained together.


GtNodeStream* gt_node_stream_ref(GtNodeStream *node_stream)

Increase the reference count for node_stream and return it.


int gt_node_stream_next(GtNodeStream *node_stream, GtGenomeNode **genome_node, GtError *err)

Try to get the the next GtGenomeNode from node_stream and store it in genome_node (transfers ownership to genome_node). If no error occurs, 0 is returned and genome_node contains either the next GtGenomeNode or NULL, if the node_stream is exhausted. If an error occurs, -1 is returned and err is set accordingly (the status of genome_node is undefined, but no ownership transfer occurred).


int gt_node_stream_pull(GtNodeStream *node_stream, GtError *err)

Calls gt_node_stream_next() on node_stream repeatedly until the node_stream is exhausted (0 is returned) or an error occurs (-1 is returned and err is set). All retrieved GtGenomeNodes are deleted automatically with calls to gt_genome_node_delete(). This method is basically a convenience method which simplifies calls to gt_node_stream_next() in a loop where the retrieved GtGenomeNode objects are not processed any further.


bool gt_node_stream_is_sorted(GtNodeStream *node_stream)

Return true if node_stream is a sorted stream, false otherwise.


void gt_node_stream_delete(GtNodeStream *node_stream)

Decrease the reference count for node_stream or delete it, if this was the last reference.


void GtNodeStreamFreeFunc(GtNodeStream*)

Callback function. Performs the necessary steps to delete implementation-specific memory in the stream implementation.


int GtNodeStreamNextFunc(GtNodeStream*, GtGenomeNode**, GtError*)

Callback function. May receive a GtGenomeNode from its predecessor and must write a node reference or NULL to the node pointer.


GtNodeStream* gt_node_stream_create(const GtNodeStreamClass *node_stream_class, bool ensure_sorting)

Create a new object of the given node_stream_class. If ensure_sorting is true, it is enforced that all genome node objects pulled from this class are sorted. That is, for consecutive nodes a and b obtained from the given node_stream_class the return code of gt_genome_node_compare(a,b) has to be smaller or equal than 0. If this condition is not met, an assertion fails.


void* gt_node_stream_cast(const GtNodeStreamClass *node_stream_class, GtNodeStream *node_stream)

Cast node_stream to the given node_stream_class. That is, if node_stream is not from the given node_stream_class, an assertion will fail.


Class GtNodeStreamClass

const GtNodeStreamClass* gt_node_stream_class_new(size_t size, GtNodeStreamFreeFunc free, GtNodeStreamNextFunc next)

Create a new node stream class (that is, a class which implements the node stream interface). size denotes the size of objects of the new node stream class. The optional free method is called once, if an object of the new class is deleted. The mandatory next method has to implement the gt_node_stream_next() semantic for the new class.


Class GtNodeVisitor

The GtNodeVisitor interface, a visitor for GtGenomeNode objects.


int gt_node_visitor_visit_comment_node(GtNodeVisitor *node_visitor, GtCommentNode *comment_node, GtError *err)

Visit comment_node with node_visitor.


int gt_node_visitor_visit_feature_node(GtNodeVisitor *node_visitor, GtFeatureNode *feature_node, GtError *err)

Visit feature_node with node_visitor.


int gt_node_visitor_visit_meta_node(GtNodeVisitor *node_visitor, GtMetaNode *meta_node, GtError *err)

Visit meta_node with node_visitor.


int gt_node_visitor_visit_region_node(GtNodeVisitor *node_visitor, GtRegionNode *region_node, GtError *err)

Visit region_node with node_visitor.


int gt_node_visitor_visit_sequence_node(GtNodeVisitor *node_visitor, GtSequenceNode *sequence_node, GtError *err)

Visit sequence_node with node_visitor.


void gt_node_visitor_delete(GtNodeVisitor *node_visitor)

Delete node_visitor.


Class GtORFIterator

The GtORFIterator class is used to enumerate open reading frames (ORFs) in codon streams as delivered by a GtCodonIterator using a translation process as defined by a GtTranslator.


GtORFIterator* gt_orf_iterator_new(GtCodonIterator *ci, GtTranslator *translator)

Return a new GtORFIterator* using the codons delivered by ci and translated by translator.


GtORFIteratorStatus gt_orf_iterator_next(GtORFIterator *orf_iterator, GtRange *orf_rng, unsigned int *orf_frame, GtError *err)

Sets the values of orf_rng.start, orf_rng.end and orf_frame to the current reading position of ci if a START/STOP codon is found. The frame in which the ORF is located is written to the position pointed to by orf_frame. This function returns one of three status codes: GT_ORF_ITERATOR_OK if an ORF was detected successfully(START/STOP AA pair), GT_ORF_ITERATOR_END if no ORF was detected because the end of the scan region has been reached, or GT_ORF_ITERATOR_ERROR if no ORF was detected because an error occurred during sequence access. See err for details.


void gt_orf_iterator_delete(GtORFIterator *orf_iterator)

Delete orf_iterator and frees all associated memory.


Class GtOption

GtOption objects represent command line options (which are used in a GtOptionParser). Option descriptions are automatically formatted to GT_OPTION_PARSER_TERMINAL_WIDTH, but it is possible to embed newlines into the descriptions to manually affect the formatting.


GtOption* gt_option_new_bool(const char *option_string, const char *description, bool *value, bool default_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value.


GtOption* gt_option_new_double(const char *option_string, const char *description, double *value, double default_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value.


GtOption* gt_option_new_double_min(const char *option_string, const char *description, double *value, double default_value, double minimum_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value. The argument to this option must at least have the minimum_value.


GtOption* gt_option_new_double_min_max(const char *option_string, const char *description, double *value, double default_value, double minimum_value, double maximum_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value. The argument to this option must at least have the minimum_value and at most the maximum_value.


GtOption* gt_option_new_probability(const char *option_string, const char *description, double *value, double default_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value. The argument to this option must at larger or equal than 0.0 and smaller or equal than 1.0.


GtOption* gt_option_new_int(const char *option_string, const char *description, int *value, int default_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value.


GtOption* gt_option_new_int_min(const char *option_string, const char *description, int *value, int default_value, int minimum_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value. The argument to this option must at least have the minimum_value.


GtOption* gt_option_new_int_max(const char *option_string, const char *description, int *value, int default_value, int maximum_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value. The argument to this option must at most have the maximum_value.


GtOption* gt_option_new_int_min_max(const char *option_string, const char *description, int *value, int default_value, int minimum_value, int maximum_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value. The argument to this option must at least have the minimum_value and at most the maximum_value.


GtOption* gt_option_new_uint(const char *option_string, const char *description, unsigned int *value, unsigned int default_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value.


GtOption* gt_option_new_uint_min(const char *option_string, const char *description, unsigned int *value, unsigned int default_value, unsigned int minimum_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value. The argument to this option must at least have the minimum_value.


GtOption* gt_option_new_uint_max(const char *option_string, const char *description, unsigned int *value, unsigned int default_value, unsigned int maximum_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value. The argument to this option must at most have the maximum_value.


GtOption* gt_option_new_uint_min_max(const char *option_string, const char *description, unsigned int *value, unsigned int default_value, unsigned int minimum_value, unsigned int maximum_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value. The argument to this option must at least have the minimum_value and at most the maximum_value.


GtOption* gt_option_new_word(const char *option_string, const char *description, GtWord *value, GtWord default_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value.


GtOption* gt_option_new_uword(const char *option_string, const char *description, GtUword *value, GtUword default_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value.


GtOption* gt_option_new_uword_min(const char *option_string, const char *description, GtUword *value, GtUword default_value, GtUword minimum_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value. The argument to this option must at least have the minimum_value.


GtOption* gt_option_new_uword_min_max(const char *option_string, const char *description, GtUword *value, GtUword default_value, GtUword minimum_value, GtUword maximum_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value. The argument to this option must at least have the minimum_value and at most the maximum_value.


GtOption* gt_option_new_long(const char *option_string, const char *description, GtWord *value, GtWord default_value)

Deprecated. Usage identical to gt_option_new_word.


GtOption* gt_option_new_ulong(const char *option_string, const char *description, GtUword *value, GtUword default_value)

Deprecated. Usage identical to gt_option_new_uword.


GtOption* gt_option_new_ulong_min(const char *option_string, const char *description, GtUword *value, GtUword default_value, GtUword minimum_value)

Deprecated. Usage identical to gt_option_new_uword_min.


GtOption* gt_option_new_ulong_min_max(const char *option_string, const char *description, GtUword *value, GtUword default_value, GtUword minimum_value, GtUword maximum_value)

Deprecated. Usage identical to gt_option_new_uword_min_max.


GtOption* gt_option_new_range(const char *option_string, const char *description, GtRange *value, GtRange *default_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value. If default_value equals NULL, GT_UNDEF_WORD will be used as the default start and end point of value.


GtOption* gt_option_new_range_min_max(const char *option_string, const char *description, GtRange *value, GtRange *default_value, GtUword minimum_value, GtUword maximum_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value. The first argument to this option (which will be used as the start) must at least have the minimum_value and the second argument (which will be used as the end) at most the maximum_value.


GtOption* gt_option_new_string(const char *option_string, const char *description, GtStr *value, const char *default_value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing is stored in value.


GtOption* gt_option_new_string_array(const char *option_string, const char *description, GtStrArray *value)

Return a new GtOption with the given option_string, description, and default_value. The result of the option parsing are stored in value.


GtOption* gt_option_new_choice(const char *option_string, const char *description, GtStr *value, const char *default_value, const char **domain)

Return a GtOption with the given option_string, description, and default_value which allows only arguments given in the NULL-terminated domain (default_value must be an entry of domain or NULL).


GtOption* gt_option_new_filename(const char *option_string, const char *description, GtStr *filename)

Return a new GtOption with the given option_string, description. The result of the option parsing is stored in the GtStr object filename. filename may not be NULL!


GtOption* gt_option_new_filename_array(const char *option_string, const char *description, GtStrArray *filename_array)

Return a new GtOption with the given option_string, description, and default_value. The results of the option parsing are stored in value.


GtOption* gt_option_new_debug(bool *value)

Return a new debug GtOption object: -debug, "enable debugging output", default is false. The result of the option parsing is stored in value


GtOption* gt_option_new_verbose(bool *value)

Return a new verbose GtOption object: -v, "be verbose", default is false. The result of the option parsing is stored in value


GtOption* gt_option_new_width(GtUword *value)

Return a new width GtOption object: -width, "set output width for FASTA sequence printing (0 disables formatting)", default is 0. The result of the option parsing is stored in value


GtOption* gt_option_ref(GtOption *option)

Increase the reference count for option and return it.


const char* gt_option_get_name(const GtOption * option)

Return the name of option


void gt_option_is_mandatory(GtOption *option)

Make option mandatory.


void gt_option_is_mandatory_either(GtOption *option_a, const GtOption *option_b)

Make it mandatory, that either option_a or option_b is used.


void gt_option_is_mandatory_either_3(GtOption *option_a, const GtOption *option_b, const GtOption *option_c)

Make it mandatory, that one of the options option_a, option_b, or option_c is used.


void gt_option_is_mandatory_either_4(GtOption *option_a, const GtOption *option_b, const GtOption *option_c, const GtOption *option_d)

Make it mandatory, that one of the options option_a, option_b, option_c or option_d is used.


void gt_option_is_extended_option(GtOption *option)

Set that option is only shown in the output of -help+.


void gt_option_is_development_option(GtOption *option)

Set that option is only shown in the output of -helpdev.


void gt_option_imply(GtOption *option_a, const GtOption *option_b)

Make option_a imply option_b.


void gt_option_imply_either_2(GtOption *option_a, const GtOption *option_b, const GtOption *option_c)

Make option_a imply either option_b or option_c


void gt_option_imply_either_3(GtOption *option_a, const GtOption *option_b, const GtOption *option_c, const GtOption *option_d)

Make option_a imply either option_b, option_c or option_d


void gt_option_exclude(GtOption *option_a, GtOption *option_b)

Set that the options option_a and option_b exclude each other.


void gt_option_hide_default(GtOption *option)

Hide the default value of option in -help output.


void gt_option_argument_is_optional(GtOption *option)

Set that the argument to option is optional


bool gt_option_is_set(const GtOption *option)

Return true if option was set, false otherwise.


void gt_option_delete(GtOption*)

Delete option.


int gt_option_parse_spacespec(GtUword *maximumspace, const char *optname, const GtStr *memlimit, GtError *err)

Parse the argument to option -memlimit. Could be made into a special parser, but I do not know how. SK. 2011-09-19


Class GtOptionParser

GtOptionParser objects can be used to parse command line options.


#define GT_OPTION_PARSER_TERMINAL_WIDTH

The default terminal width used in the output of the GtOptionParser.


GtOptionParser* gt_option_parser_new(const char *synopsis, const char *one_liner)

Return a new GtOptionParser object. The synopsis should summarize the command line arguments and mandatory arguments in a single line. The one_liner should describe the program for which the GtOptionParser is used in a single line and must have an upper case letter at the start and a '.' at the end.


void gt_option_parser_add_option(GtOptionParser *option_parser, GtOption *option)

Add option to option_parser. Takes ownership of option.


GtOption* gt_option_parser_get_option(GtOptionParser *option_parser, const char *option_string)

Return the GtOption object if an option named option_string is present in option_parser, and NULL if no such option exists.


void gt_option_parser_refer_to_manual(GtOptionParser *option_parser)

Refer to manual at the end of -help output of opion_parser.


void gt_option_parser_set_comment_func(GtOptionParser *option_parser, GtShowCommentFunc comment_func, void *data)

Set comment_func in option_parser (data is passed along).


void gt_option_parser_set_version_func(GtOptionParser *option_parser, GtShowVersionFunc version_func)

Set the version function used by option_parser to version_func. This version function takes precedence to the one supplied to gt_option_parser_parse().


void gt_option_parser_set_mail_address(GtOptionParser*, const char *mail_address)

Set the mail_address used in the final "Report bugs to" line of the -help output. It should be of the form (email address enclosed in one pair of angle brackets).


void gt_option_parser_register_hook(GtOptionParser *option_parser, GtOptionParserHookFunc hook_function, void *data)

Register a hook_function with option_parser. All registered hook functions are called at the end of gt_option_parser_parse(). This allows one to have a module which registers a bunch of options in the option parser and automatically performs necessary postprocessing after the option parsing has been done via the hook function.


void gt_option_parser_set_min_args(GtOptionParser *option_parser, unsigned int minimum)

The minimum number of additional command line arguments option_parser must parse in order to succeed.


void gt_option_parser_set_max_args(GtOptionParser *option_parser, unsigned int maximum)

The maximum number of additional command line arguments option_parser must parse in order to succeed.


void gt_option_parser_set_min_max_args(GtOptionParser *option_parser, unsigned int minimum, unsigned int maximum)

The minimum and maximum number of additional command line arguments option_parser must parse in order to succeed.


GtOPrval gt_option_parser_parse(GtOptionParser *option_parser, int *parsed_args, int argc, const char **argv, GtShowVersionFunc version_func, GtError *err)

Use option_parser to parse options given in argument vector argv (with argc many arguments). The number of parsed arguments is stored in parsed_args. version_func is used for the output of option -version. In case of error, GT_OPTION_PARSER_ERROR is returned and err is set accordingly.


void gt_option_parser_reset(GtOptionParser *op)

Reset all options set in op to the default values specified at option parser creation time.


void gt_option_parser_delete(GtOptionParser *option_parser)

Delete option_parser.


Class GtOutputFileInfo

The GtOutputFileInfo class encapsulates output options.


GtOutputFileInfo* gt_output_file_info_new(void)

Create a new GtOutputFileInfo object.


void gt_output_file_info_register_options( GtOutputFileInfo *output_file_info, GtOptionParser *option_parser, GtFile **outfp)

Registers the options `-o', `-gzip', `-bzip2' and `-force' in option_parser. Options chosen during option parsing will be stored in output_file_info and the output file will be accessible using *outfp. If no option is given, default *outfp will use stdout. Caller retains ownership of *outfp.


void gt_output_file_info_delete( GtOutputFileInfo *output_file_info)

Deletes output_file_info and frees all associated memory.


Class GtPhase

This enum type defines the possible phases. The following phases are defined: GT_PHASE_ZERO, GT_PHASE_ONE, GT_PHASE_TWO, and GT_PHASE_UNDEFINED.


#define GT_PHASE_CHARS

Use this string to map phase enum types to their corresponding character.


GtPhase gt_phase_get(char phase_char)

Map phase_char to the corresponding phase enum type. An assertion will fail if phase_char is not a valid one.


Class GtQueue

GtQueue objects are generic queues which can be used to process objects of any type in an First-In-First-Out (FIFO) fashion.


GtQueue* gt_queue_new(void)

Return a new GtQueue object.


void gt_queue_add(GtQueue *queue, void *elem)

Add elem to queue (enqueue in computer science terminology).


void* gt_queue_get(GtQueue *queue)

Remove the first element from non-empty queue and return it (dequeue in computer science terminology).


void* gt_queue_head(GtQueue *queue)

Return the first element in non-empty queue without removing it.


void gt_queue_remove(GtQueue *queue, void *elem)

Remove elem from queue (elem has to be in queue). Thereby queue is traversed in reverse order, leading to O(gt_queue_size(queue)) worst-case running time.


GtUword gt_queue_size(const GtQueue *queue)

Return the number of elements in queue.


void gt_queue_delete(GtQueue *queue)

Delete queue. Elements contained in queue are not freed!


Class GtRDBMySQL

The GtRDBMySQL class implements the GtRDB interface using the MySQL client backend. This implementation is only available if compiled with the option ``with-mysql=yes''.


GtRDB* gt_rdb_mysql_new(const char *server, unsigned int port, const char *database, const char *username, const char *password, GtError *err)

Creates a new GtRDBSqlite object from the database accessible on server port port, selecting the database database using the credentials given by username and password. Returns NULL on error, err is set accordingly.


Class GtRDBSqlite

The GtRDBSqlite class implements the GtRDB interface using the SQLite embedded database backend. This implementation is only available if compiled with the option ``with-sqlite=yes''.


GtRDB* gt_rdb_sqlite_new(const char *dbpath, GtError *err)

Creates a new GtRDBSqlite object from the database file located at dbpath. Returns NULL on error, err is set accordingly.


Class GtRDBVisitor

The GtRDBVisitor interface, a visitor for GtRDB objects.


int gt_rdb_visitor_visit_sqlite(GtRDBVisitor *rdbv, GtRDBSqlite *rdbs, GtError *err)

Visit a SQLite database rdbs with rdbv. Returns 0 on success, a negative value otherwise, and err is set accordingly.


int gt_rdb_visitor_visit_mysql(GtRDBVisitor *rdbv, GtRDBMySQL *rdbm, GtError *err)

Visit a MySQL database rdbm with rdbv. Returns 0 on success, a negative value otherwise, and err is set accordingly.


void gt_rdb_visitor_delete(GtRDBVisitor *rdbv)

Delete rdbv.


Class GtRWLock

The GtRWLock class represents a read/write lock.


GtRWLock* gt_rwlock_new(void)

Return a new GtRWLock* object.


void gt_rwlock_delete(GtRWLock *rwlock)

Delete the given rwlock.


#define gt_rwlock_rdlock(rwlock)

Acquire a read lock for rwlock.


#define gt_rwlock_wrlock(rwlock)

Acquire a write lock for rwlock.


#define gt_rwlock_unlock(rwlock)

Unlock the given rwlock.


Class GtRange

The GtRange class is used to represent genomic ranges in GenomeTools. Thereby, the start must always be smaller or equal than the end.


int gt_range_compare(const GtRange *range_a, const GtRange *range_b)

Compare range_a and range_b. Returns 0 if range_a equals range_b, -1 if range_a starts before range_b or (for equal starts) range_a ends before range_b, and 1 else.


int gt_range_compare_with_delta(const GtRange *range_a, const GtRange *range_b, GtUword delta)

Compare range_a and range_b with given delta. Returns 0 if range_a equals range_b modulo delta (i.e., the start and end points of range_a and range_b are at most delta bases apart), -1 if range_a starts before range_b or (for equal starts) range_a ends before range_b, and 1 else.


bool gt_range_overlap(const GtRange *range_a, const GtRange *range_b)

Returns true if range_a and range_b overlap, false otherwise.


bool gt_range_overlap_delta(const GtRange *range_a, const GtRange *range_b, GtUword delta)

Returns true if range_a and range_b overlap at least delta many positions, false otherwise.


bool gt_range_contains(const GtRange *range_a, const GtRange *range_b)

Returns true if range_b is contained in range_a, false otherwise.


bool gt_range_within(const GtRange *range, GtUword point)

Returns true if point lies within range, false otherwise.


GtRange gt_range_join(const GtRange *range_a, const GtRange *range_b)

Join range_a and range_b and return the result.


GtRange gt_range_offset(const GtRange *range, GtWord offset)

Transform start and end of range by offset and return the result.


GtUword gt_range_length(const GtRange *range)

Returns the length of the given range.


Class GtReadmode

This enum type defines the possible reamodes, namely GT_READMODE_FORWARD, GT_READMODE_REVERSE, GT_READMODE_COMPL, and GT_READMODE_REVCOMPL.


const char* gt_readmode_show(GtReadmode readmode)

Returns the descriptive string for readmode.


int gt_readmode_parse(const char *string, GtError *err)

Returns the GtReadmode for the description string, which must be one of "fwd","rev","cpl" or "rcl". If string does not equal any of them, -1 is returned and err is set accordingly.


GtReadmode gt_readmode_inverse_dir(GtReadmode readmode)

invert the direction of a readmode: fwd => rev, rev => fwd, cpl => rcl, rcl => cpl


Class GtRecMap

A GtRecMap object contains a mapping from a 2D coordinate pair which identifies a rectangle in a rendered image to the GtFeatureNode it represents. The rectangle is defined by the coordinates of its upper left (``northwest'') and lower right (``southeast'') points.

GtRecMap objects are created by an GtImageInfo object which is filled during the generation of an image by AnnotationSketch.


GtRecMap* gt_rec_map_new(double nw_x, double nw_y, double se_x, double se_y, GtFeatureNode *f)

Creates a new GtRecMap for feature f with the given coordinates.


GtRecMap* gt_rec_map_ref(GtRecMap *rm)

Increases the reference count of rm.


double gt_rec_map_get_northwest_x(const GtRecMap*)

Retrieve x value of the the upper left point of the rectangle.


double gt_rec_map_get_northwest_y(const GtRecMap*)

Retrieve y value of the the upper left point of the rectangle.


double gt_rec_map_get_southeast_x(const GtRecMap*)

Retrieve x value of the the lower right point of the rectangle.


double gt_rec_map_get_southeast_y(const GtRecMap*)

Retrieve y value of the the lower right point of the rectangle.


const GtFeatureNode* gt_rec_map_get_genome_feature(const GtRecMap*)

Retrieve GtFeatureNode associated with this rectangle.


bool gt_rec_map_has_omitted_children(const GtRecMap*)

Returns true if the rectangle represents a block root whose elements have not been drawn due to size restrictions.


void gt_rec_map_delete(GtRecMap*)

Deletes a GtRecMap and frees all associated memory.


Class GtRegionMapping

A GtRegionMapping objects maps sequence-regions to the corresponding entries of sequence files.


GtRegionMapping* gt_region_mapping_new_mapping(GtStr *mapping_filename, GtError *err)

Return a new GtRegionMapping object for the mapping file with the given mapping_filename. In the case of an error, NULL is returned and err is set accordingly.


GtRegionMapping* gt_region_mapping_new_seqfiles(GtStrArray *sequence_filenames, bool matchdesc, bool usedesc)

Return a new GtRegionMapping object for the sequence files given in sequence_filenames. If matchdesc is true, the sequence descriptions from the input files are matched for the desired sequence IDs (in GFF3). If usedesc is true, the sequence descriptions are used to map the sequence IDs (in GFF3) to actual sequence entries. If a description contains a sequence range (e.g., III:1000001..2000000), the first part is used as sequence ID ('III') and the first range position as offset ('1000001'). matchdesc and usedesc cannot be true at the same time.


GtRegionMapping* gt_region_mapping_new_encseq(GtEncseq *encseq, bool matchdesc, bool usedesc)

Like gt_region_mapping_new_seqfiles(), but using encseq as a sequence source.


GtRegionMapping* gt_region_mapping_new_rawseq(const char *rawseq, GtUword length, GtUword offset)

Return a new GtRegionMapping object which maps to the given sequence rawseq with the corresponding length and offset.


GtRegionMapping* gt_region_mapping_ref(GtRegionMapping *region_mapping)

Increase the reference count for region_mapping and return it.


int gt_region_mapping_get_sequence(GtRegionMapping *region_mapping, char **seq, GtStr *seqid, GtUword start, GtUword end, GtError *err)

Use region_mapping to extract the sequence from start to end of the given sequence ID seqid into a buffer written to seq (the caller is responsible to free it). In the case of an error, -1 is returned and err is set accordingly.


int gt_region_mapping_get_sequence_length(GtRegionMapping *region_mapping, GtUword *length, GtStr *seqid, GtError *err)

Use region_mapping to retrieve the sequence length of the given sequence ID seqid and store the result in length. In the case of an error, -1 is returned and err is set accordingly.


int gt_region_mapping_get_description(GtRegionMapping *region_mapping, GtStr *desc, GtStr *seqid, GtError *err)

Use region_mapping to get the description of the MD5 sequence ID seqid. The description is appended to desc. In the case of an error, -1 is returned and err is set accordingly.


const char* gt_region_mapping_get_md5_fingerprint(GtRegionMapping *region_mapping, GtStr *seqid, const GtRange *range, GtUword *offset, GtError *err)

Use region_mapping to return the MD5 fingerprint of the sequence with the sequence ID seqid and its corresponding range. The offset of the sequence is stored in offset. In the case of an error, NULL is returned and err is set accordingly.


void gt_region_mapping_delete(GtRegionMapping *region_mapping)

Delete region_mapping.


Class GtRegionNode

Implements the GtGenomeNode interface. Region nodes correspond to the ##sequence-region lines in GFF3 files.


GtGenomeNode* gt_region_node_new(GtStr *seqid, GtUword start, GtUword end)

Create a new GtRegionNode* representing sequence with ID seqid from base position start to base position end (1-based). start has to be smaller or equal than end. The GtRegionNode* stores a new reference to seqid, so make sure you do not modify the original seqid afterwards!


GtRegionNode* gt_region_node_try_cast(GtGenomeNode *gn)

Test whether the given genome node is a region node. If so, a pointer to the region node is returned. If not, NULL is returned. Note that in most cases, one should implement a GtNodeVisitor to handle processing of different GtGenomeNode types.


GtRegionNode* gt_region_node_cast(GtGenomeNode *gn)

Test whether the given genome node is a region node. If so, a pointer to the region node is returned. If not, an assertion fails.


Class GtScriptWrapperStream

Implements the GtScriptWrapperStream interface. This stream is only used to store pointers to external callbacks, e.g. written in a scripting language. This class does not store any state or logic, relying on the developer of the external custom stream class to do so.


GtNodeStream* gt_script_wrapper_stream_new(GtScriptWrapperStreamNextFunc, GtScriptWrapperStreamFreeFunc)

Creates a new GtScriptWrapperStream given a next and a free function.


Class GtScriptWrapperVisitor

Implements the GtNodeVisitor interface.


GtNodeVisitor* gt_script_wrapper_visitor_new( GtScriptWrapperVisitorCommentNodeFunc, GtScriptWrapperVisitorFeatureNodeFunc, GtScriptWrapperVisitorRegionNodeFunc, GtScriptWrapperVisitorSequenceNodeFunc, GtScriptWrapperVisitorMetaNodeFunc, GtScriptWrapperVisitorEOFNodeFunc, GtScriptWrapperVisitorFreeFunc)

Creates a new GtScriptWrapperVisitor for a number of callback functions.


Class GtSelectStream

Implements the GtNodeStream interface. A GtSelectStream selects certain nodes it retrieves from its node source and passes them along.


GtNodeStream* gt_select_stream_new(GtNodeStream *in_stream, GtStr *seqid, GtStr *source, const GtRange *contain_range, const GtRange *overlap_range, GtStrand strand, GtStrand targetstrand, bool has_CDS, GtUword max_gene_length, GtUword max_gene_num, double min_gene_score, double max_gene_score, double min_average_splice_site_prob, GtUword feature_num, GtStrArray *select_files, GtStr *select_logic, GtError *err)

Create a GtSelectStream object which selects genome nodes it retrieves from its in_stream and passes them along if they meet the criteria defined by the other arguments. All comment nodes are selected. If seqid is defined, a genome node must have it to be selected. If source is defined, a genome node must have it to be selected. If contain_range is defined, a genome node must be contained in it to be selected. If overlap_range is defined, a genome node must overlap it to be selected. If strand is defined, a (top-level) genome node must have it to be selected. If targetstrand is defined, a feature with a target attribute must have exactly one of it and its strand must equal targetstrand. If had_cds is true, all top-level features are selected which have a child with type CDS. If max_gene_length is defined, only genes up to the this length are selected. If max_gene_num is defined, only so many genes are selected. If min_gene_score is defined, only genes with at least this score are selected. If max_gene_score is defined, only genes with at most this score are selected. If min_average_splice_site_prob is defined, feature nodes which have splice sites must have at least this average splice site score to be selected. If feature_num is defined, just the feature_numth feature node occurring in the in_stream is selected. If select_files is defined and has at least one entry, the entries are evaluated as Lua scripts containing functions taking GtGenomeNodes that are evaluated to boolean values to determine selection. select_logic can be "OR" or "AND", defining how the results from the select scripts are combined. Returns a pointer to a new GtSelectStream or NULL on error (err is set accordingly).


void gt_select_stream_set_drophandler(GtSelectStream *sstr, GtSelectNodeFunc fp, void *data)

Sets fp as a handler function to be called for every GtGenomeNode not selected by sstr. The void pointer data can be used for arbitrary user data.


Class GtSeqIterator

void gt_seq_iterator_set_symbolmap(GtSeqIterator*, const GtUchar *symbolmap)

Sets a symbol map for the GtSeqIterator. If a symbolmap is given, all read in sequences are transformed with it. Set to NULL to disable alphabet transformation.


void gt_seq_iterator_set_sequence_output(GtSeqIterator*, bool)

If set to true, sequences and descriptions are processed (otherwise only the descriptions). By default, sequences are processed.


int gt_seq_iterator_next(GtSeqIterator *seqit, const GtUchar **sequence, GtUword *len, char **description, GtError *err)

Get next sequence (of length len) and description from seqit. Note that seqit retains ownership of the sequence and description. Returns 1 if another sequence could be parsed, 0 if all given sequence files are exhausted, And -1 if an error occurred (err is set accordingly).


const GtUint64* gt_seq_iterator_getcurrentcounter(GtSeqIterator*, GtUint64)

Returns a pointer to the current total number of read characters.


bool gt_seq_iterator_has_qualities(GtSeqIterator *seqit)

Returns TRUE if seqit supports setting of a quality buffer.


void gt_seq_iterator_set_quality_buffer(GtSeqIterator *seqit, const GtUchar **qualities)

Turns on reporting of sequence qualities to the location pointed to by qualities. That pointer will be set to a string containing the quality data (which must then be processed into scores).


void gt_seq_iterator_delete(GtSeqIterator *seqit)

Deletes seqit and frees associated memory.


Class GtSeqIteratorFastQ

GtSeqIterator* gt_seq_iterator_fastq_new(const GtStrArray *filenametab, GtError *err)

Create a new GtSeqIteratorFastQ for all sequence files in filenametab.


GtSeqIterator* gt_seq_iterator_fastq_new_colorspace(const GtStrArray *filenametab, GtError *err)

Create a new GtSeqIteratorFastQ for all sequence files in filenametab containing color space reads.


GtUword gt_seq_iterator_fastq_get_file_index(GtSeqIteratorFastQ *seqit)

Returns the number of the file in the file name array which seqit is currently reading.


void gt_seq_iterator_fastq_relax_check_of_quality_description( GtSeqIteratorFastQ *seqit)

Disable checking if quality description is equal to read description in seqit (it should be, but it is not in output of some tools, e.g. Coral).


Class GtSeqIteratorSequenceBuffer

GtSeqIterator* gt_seq_iterator_sequence_buffer_new(const GtStrArray *filenametab, GtError *err)

Create a new GtSeqIterator for all sequence files in filenametab. All files have to be of the same format, which will be guessed by examining the beginning of the first file. If an error occurs, NULL is returned (see the err object for details).


Class GtSequenceNode

Implements the GtGenomeNode interface. Sequence nodes correspond to singular embedded FASTA sequences in GFF3 files.


GtGenomeNode* gt_sequence_node_new(const char *description, GtStr *sequence)

Create a new GtSequenceNode* representing a FASTA entry with the given description and sequence. Takes ownership of sequence.


const char* gt_sequence_node_get_description(const GtSequenceNode *sequence_node)

Return the description of sequence_node.


const char* gt_sequence_node_get_sequence(const GtSequenceNode *sequence_node)

Return the sequence of sequence_node.


GtUword gt_sequence_node_get_sequence_length(const GtSequenceNode *sequence_node)

Return the sequence length of sequence_node.


GtSequenceNode* gt_sequence_node_try_cast(GtGenomeNode *gn)

Test whether the given genome node is a sequence node. If so, a pointer to the sequence node is returned. If not, NULL is returned. Note that in most cases, one should implement a GtNodeVisitor to handle processing of different GtGenomeNode types.


GtSequenceNode* gt_sequence_node_cast(GtGenomeNode *gn)

Test whether the given genome node is a sequence node. If so, a pointer to the sequence node is returned. If not, an assertion fails.


Class GtSetSourceVisitor

Implements the GtNodeVisitor interface. Used with the GtVisitorStream class, a GtSetSourceVisitor resets the source value for GtFeatureNode objects.


GtNodeVisitor* gt_set_source_visitor_new(GtStr *newsource)

Create a node visitor object which will reset the source value of all GtFeatureNode objects it processes to newsource.


Class GtSortStream

Implements the GtNodeStream interface. A GtSortStream sorts the GtGenomeNode objects it retrieves from its node source.


GtNodeStream* gt_sort_stream_new(GtNodeStream *in_stream)

Create a GtSortStream* which sorts the genome nodes it retrieves from in_stream and returns them unmodified, but in sorted order.


Class GtSplitter

The GtSplitter class defines objects which can split given strings into tokens delimited by a given character, allowing for convenient access to each token.


GtSplitter* gt_splitter_new(void)

Create a new GtSplitter object.


void gt_splitter_split(GtSplitter *splitter, char *string, GtUword length, char delimiter)

Use splitter to split string of given length into tokens delimited by delimiter. Note that string is modified in the splitting process!


void gt_splitter_split_non_empty(GtSplitter *s, char *string, GtUword length, char delimiter)

Use splitter to split string of given length into tokens delimited by delimiter. Empty tokens will be ignored. Note that string is modified in the splitting process!


char** gt_splitter_get_tokens(GtSplitter *splitter)

Return all tokens split by splitter in an array.


char* gt_splitter_get_token(GtSplitter *splitter, GtUword token_num)

Return token with number token_num from splitter.


void gt_splitter_reset(GtSplitter *splitter)

Reset the splitter.


GtUword gt_splitter_size(GtSplitter *splitter)

Return the number of tokens in splitter.


void gt_splitter_delete(GtSplitter *splitter)

Delete the splitter.


Class GtStatStream

Implements the GtNodeStream interface. A GtStatStream gathers statistics about the GtGenomeNode objects it retrieves from its node source and passes them along unmodified.


GtNodeStream* gt_stat_stream_new(GtNodeStream *in_stream, bool gene_length_distribution, bool gene_score_distribution, bool exon_length_distribution, bool exon_number_distribution, bool intron_length_distribution, bool cds_length_distribution, bool used_sources)

Create a GtStatStream object which gathers statistics about the GtGenomeNode objects it retrieves from its in_stream and returns them unmodified. Besides the basic statistics, statistics about the following distributions can be gathered, if the corresponding argument equals true: gene_length_distribution, gene_score_distribution, exon_length_distribution, exon_number_distribution, intron_length_distribution, cds_length_distribution. If used_sources equals true, it is recorded which source tags have been encountered.


void gt_stat_stream_show_stats(GtStatStream *stat_stream, GtFile *outfp)

Write the statistics gathered by stat_stream to outfp.


Class GtStr

Objects of the GtStr class are strings which grow on demand.


GtStr* gt_str_new(void)

Return an empty GtStr object.


GtStr* gt_str_new_cstr(const char *cstr)

Return a new GtStr object whose content is set to cstr.


GtStr* gt_str_clone(const GtStr *str)

Return a clone of str.


GtStr* gt_str_ref(GtStr *str)

Increase the reference count for str and return it. If str is NULL, NULL is returned without any side effects.


char* gt_str_get(const GtStr *str)

Return the content of str. Never returns NULL, and the content is always \0-terminated


void gt_str_set(GtStr *str, const char *cstr)

Set the content of str to cstr.


void gt_str_append_str(GtStr *dest, const GtStr *src)

Append the string src to dest.


void gt_str_append_cstr(GtStr *str, const char *cstr)

Append the \0-terminated cstr to str.


void gt_str_append_cstr_nt(GtStr *str, const char *cstr, GtUword length)

Append the (not necessarily \0-terminated) cstr with given length to str.


void gt_str_append_char(GtStr *str, char c)

Append character c to str.


void gt_str_append_double(GtStr *str, double d, int precision)

Append double d to str with given precision.


void gt_str_append_sci_double(GtStr *dest, double d, int precision)

Append double d to str in scientific notation e.g. 0.52e10, with given precision.


void gt_str_append_uword(GtStr *str, GtUword uword)

Append ulong to str.


void gt_str_append_int(GtStr *str, int intval)

Append intval to str.


void gt_str_append_uint(GtStr *str, unsigned int uint)

Append uint to str.


void gt_str_set_length(GtStr *str, GtUword length)

Set length of str to length. length must be smaller or equal than gt_str_length(str).


void gt_str_reset(GtStr *str)

Reset str to length 0.


int gt_str_cmp(const GtStr *str1, const GtStr *str2)

Compare str1 and str2 and return the result (similar to strcmp(3)).


GtUword gt_str_length(const GtStr *str)

Return the length of str. If str is NULL, 0 is returned.


void gt_str_delete(GtStr *str)

Decrease the reference count for str or delete it, if this was the last reference.


Class GtStrArray

GtStrArray* objects are arrays of string which grow on demand.


GtStrArray* gt_str_array_new(void)

Return a new GtStrArray object.


GtStrArray* gt_str_array_ref(GtStrArray*)

Increases the reference to a GtStrArray.


void gt_str_array_add_cstr(GtStrArray *str_array, const char *cstr)

Add cstr to str_array. Thereby, an internal copy of cstr is created.


void gt_str_array_add_cstr_nt(GtStrArray *str_array, const char *cstr, GtUword length)

Add the non \0-terminated cstr with given length to str_array. Thereby, an internal copy of cstr is created.


void gt_str_array_add(GtStrArray *str_array, const GtStr *str)

Add str to str_array. Thereby, an internal copy of str is created.


const char* gt_str_array_get(const GtStrArray *str_array, GtUword strnum)

Return pointer to internal string with number strnum of str_array. strnum must be smaller than gt_str_array_size(str_array).


void gt_str_array_set_cstr(GtStrArray *str_array, GtUword strnum, const char *cstr)

Set the string with number strnum in str_array to cstr.


void gt_str_array_set(GtStrArray *str_array, GtUword strnum, const GtStr *str)

Set the string with number strnum in str_array to str.


void gt_str_array_set_size(GtStrArray *str_array, GtUword size)

Set the size of str_array to size. size must be smaller or equal than gt_str_array_size(str_array).


void gt_str_array_reset(GtStrArray *str_array)

Set the size of str_array to 0.


GtUword gt_str_array_size(const GtStrArray *str_array)

Return the number of strings stored in str_array.


void gt_str_array_delete(GtStrArray *str_array)

Delete str_array.


Class GtStrand

This enum type defines the possible strands. The following strands are defined: GT_STRAND_FORWARD, GT_STRAND_REVERSE, GT_STRAND_BOTH, and GT_STRAND_UNKNOWN.


#define GT_STRAND_CHARS

Use this string to map strand enum types to their corresponding character.


GtStrand gt_strand_get(char strand_char)

Map strand_char to the corresponding strand enum type. Returns GT_NUM_OF_STRAND_TYPES if strand_char is not a valid one.


Class GtStyle

Objects of the GtStyle class hold AnnotationSketch style information like colors, margins, collapsing options, and others. The class provides methods to set values of various types. Each value is organized into a section and is identified by a key. That is, a section, key pair must uniquely identify a value.


GtStyle* gt_style_new(GtError*)

Creates a new GtStyle object.


GtStyle* gt_style_ref(GtStyle*)

Increments the reference count of the given GtStyle.


void gt_style_unsafe_mode(GtStyle*)

Enables unsafe mode (``io'' and ``os'' libraries loaded).


void gt_style_safe_mode(GtStyle*)

Enables safe mode (``io'' and ``os'' libraries not accessible).


bool gt_style_is_unsafe(GtStyle *sty)

Returns true if sty is in unsafe mode.


GtStyle* gt_style_clone(const GtStyle*, GtError*)

Creates a independent (``deep'') copy of the given GtStyle object.


int gt_style_load_file(GtStyle*, const char *filename, GtError*)

Loads and executes Lua style file with given filename. This file must define a global table called style.


int gt_style_load_str(GtStyle*, GtStr *instr, GtError*)

Loads and executes Lua style code from the given GtStr instr. This code must define a global table called style.


int gt_style_to_str(const GtStyle*, GtStr *outstr, GtError*)

Generates Lua code which represents the given GtStyle object and writes it into the GtStr object outstr.


void gt_style_reload(GtStyle*)

Reloads the Lua style file.


void gt_style_set_color(GtStyle*, const char *section, const char *key, const GtColor *color)

Sets a color value in the GtStyle for section section and key to a certain color.


GtStyleQueryStatus gt_style_get_color(const GtStyle *style, const char *section, const char *key, GtColor *result, GtFeatureNode *fn, GtError *err)

Retrieves a color value from style for key key in section section. The color is written to the location pointed to by result. Optionally, a feature node pointer fn can be specified for handling in node-specific callbacks. Because color definitions can be functions, gt_style_get_color() can fail at runtime. In this case, this function returns GT_STYLE_QUERY_ERROR and err is set accordingly. If the color was not specified in style, a grey default color is written to result and GT_STYLE_QUERY_NOT_SET is returned so the caller can provide a custom default. In case of successful retrieval of an existing color, GT_STYLE_QUERY_OK is returned.


GtStyleQueryStatus gt_style_get_color_with_track(const GtStyle *style, const char *section, const char *key, GtColor *result, GtFeatureNode *fn, const GtStr *track_id, GtError *err)

Identical to gt_style_get_color(), except that it also takes a track_id which is passed to a potential callback function in the style file.


void gt_style_set_str(GtStyle*, const char *section, const char *key, GtStr *value)

Set string with key key in section to value.


GtStyleQueryStatus gt_style_get_str(const GtStyle *style, const char *section, const char *key, GtStr *result, GtFeatureNode *fn, GtError *err)

Retrieves a string value from style for key key in section section. The string is written to the GtStr object result, overwriting its prior contents. Optionally, a feature node pointer fn can be specified for handling in node-specific callbacks. Because color definitions can be functions, gt_style_get_str() can fail at runtime. In this case, this function returns GT_STYLE_QUERY_ERROR and err is set accordingly. If the string was not specified in style, result is left untouched and GT_STYLE_QUERY_NOT_SET is returned so the caller can handle this case. In case of successful retrieval of an existing string, GT_STYLE_QUERY_OK is returned.


GtStyleQueryStatus gt_style_get_str_with_track(const GtStyle *style, const char *section, const char *key, GtStr *result, GtFeatureNode *fn, const GtStr *track_id, GtError *err)

Identical to gt_style_get_str(), except that it also takes a track_id which is passed to a potential callback function in the style file.


void gt_style_set_num(GtStyle*, const char *section, const char *key, double number)

Set numeric value of key key in section to number.


GtStyleQueryStatus gt_style_get_num(const GtStyle *style, const char *section, const char *key, double *result, GtFeatureNode *fn, GtError *err)

Retrieves a numeric value from style for key key in section section. The value is written to the location pointed to by result. Optionally, a feature node pointer fn can be specified for handling in node-specific callbacks. Because the definitions can be functions, gt_style_get_num() can fail at runtime. In this case, this function returns GT_STYLE_QUERY_ERROR and err is set accordingly. If the number was not specified in style, result is left untouched and GT_STYLE_QUERY_NOT_SET is returned so the caller can handle this case. In case of successful retrieval of an existing number, GT_STYLE_QUERY_OK is returned.


GtStyleQueryStatus gt_style_get_num_with_track(const GtStyle *style, const char *section, const char *key, double *result, GtFeatureNode *fn, const GtStr *track_id, GtError *err)

Identical to gt_style_get_num(), except that it also takes a track_id which is passed to a potential callback function in the style file.


void gt_style_set_bool(GtStyle*, const char *section, const char *key, bool val)

Set boolean value of key key in section to val.


GtStyleQueryStatus gt_style_get_bool(const GtStyle *style, const char *section, const char *key, bool *result, GtFeatureNode *fn, GtError *err)

Retrieves a boolean value from style for key key in section section. The value is written to the location pointed to by result. Optionally, a feature node pointer fn can be specified for handling in node-specific callbacks. Because the definitions can be functions, gt_style_get_bool() can fail at runtime. In this case, this function returns GT_STYLE_QUERY_ERROR and err is set accordingly. If the value was not specified in style, result is left untouched and GT_STYLE_QUERY_NOT_SET is returned so the caller can handle this case. In case of successful retrieval of an existing boolean, GT_STYLE_QUERY_OK is returned.


GtStyleQueryStatus gt_style_get_bool_with_track(const GtStyle *style, const char *section, const char *key, bool *result, GtFeatureNode *fn, const GtStr *track_id, GtError *err)

Identical to gt_style_get_bool(), except that it also takes a track_id which is passed to a potential callback function in the style file.


void gt_style_unset(GtStyle*, const char *section, const char *key)

Unset value of key key in section.


void gt_style_delete(GtStyle *style)

Deletes this style.


Class GtTagValueMap

A very simple tag/value map absolutely optimized for space (i.e., memory consumption) on the cost of time. Basically, each read/write access costs O(n) time, whereas n denotes the accumulated length of all tags and values contained in the map. Tags and values cannot have length 0.

The implementation as a char* shines through (also to save one additional memory allocation), therefore the usage is a little bit different compared to other GenomeTools classes. See the implementation of gt_tag_value_map_example() for an ussage example.


void GtTagValueMapIteratorFunc(const char *tag, const char *value, void *data)

Iterator function used to iterate over tag/value maps. A tag/value pair and user data are given as arguments.


GtTagValueMap gt_tag_value_map_new(const char *tag, const char *value)

Return a new GtTagValueMap object which stores the given tag/value pair.


void gt_tag_value_map_add(GtTagValueMap *tag_value_map, const char *tag, const char *value)

Add tag/value pair to tag_value_map. tag_value_map must not contain the given tag already!


void gt_tag_value_map_set(GtTagValueMap *tag_value_map, const char *tag, const char *value)

Set the given tag in tag_value_map to value.


const char* gt_tag_value_map_get(const GtTagValueMap tag_value_map, const char *tag)

Return value corresponding to tag from tag_value_map. If tag_value_map does not contain such a value, NULL is returned.


GtUword gt_tag_value_map_size(const GtTagValueMap tag_value_map)

Return the number of tag-value pairs in tag_value_map.


void gt_tag_value_map_remove(GtTagValueMap *tag_value_map, const char *tag)

Removes the given tag from tag_value_map. tag_value_map must contain the given tag already! Also, at least one tag-value pair must remain in the map.


void gt_tag_value_map_foreach(const GtTagValueMap tag_value_map, GtTagValueMapIteratorFunc iterator_func, void *data)

Apply iterator_func to each tag/value pair contained in tag_value_map and pass data along.


int gt_tag_value_map_example(GtError *err)

Implements an example useage of a tag/value map.


void gt_tag_value_map_delete(GtTagValueMap tag_value_map)

Delete tag_value_map.


Class GtTextWidthCalculator

The GtTextWidthCalculator interface answers queries w.r.t. text width in a specific drawing backend. This interface is needed to do proper line breaking in a GtLayout even if there is no GtCanvas or GtGraphics created yet.


GtTextWidthCalculator* gt_text_width_calculator_ref(GtTextWidthCalculator*)

Increases the reference count of the GtTextWidthCalculator.


double gt_text_width_calculator_get_text_width( GtTextWidthCalculator*, const char *text, GtError *err)

Requests the width of text from the GtTextWidthCalculator. If the returned value is negative, an error occurred. Otherwise, a positive double value is returned.


void gt_text_width_calculator_delete(GtTextWidthCalculator*)

Deletes a GtTextWidthCalculator instance.


Class GtTextWidthCalculatorCairo

Implements the GtTextWidthCalculator interface with Cairo as the drawing backend. If text width is to be calculated with regard to a specific transformation etc. which is in effect in a cairo_t and which should be used later via a GtCanvasCairoContext, create a GtTextWidthCalculatorCairo object and pass it to the GtLayout via gt_layout_new_with_twc().


GtTextWidthCalculator* gt_text_width_calculator_cairo_new(cairo_t*, GtStyle*, GtError*)

Creates a new GtTextWidthCalculatorCairo object for the given context using the text size options given in the GtStyle. If the GtStyle is NULL, the current font settings in the cairo_t will be used for all text width calculations.


Class GtThread

The GtThread class represents a handle to a single thread of execution.


void* GtThreadFunc(void *data)

A function to be multithreaded.


GtThread* gt_thread_new(GtThreadFunc function, void *data, GtError *err)

Create a new thread which executes the given function (with data passed to it). Returns a GtThread* handle to the newly created thread, if successful. Returns NULL and sets err accordingly upon failure.


void gt_thread_delete(GtThread *thread)

Delete the given thread handle. Does not stop the thread itself!


void gt_thread_join(GtThread *thread)

Wait for thread to terminate before continuing execution of the current thread.


Class GtTimer

The GtTimer class encapsulates a timer which can be used for run-time measurements.


GtTimer* gt_timer_new(void)

Return a new GtTimer object.


GtTimer* gt_timer_new_with_progress_description(const char* description)

Return a new GtTimer object with the first description.


void gt_timer_start(GtTimer *timer)

Start the time measurement on timer.


void gt_timer_stop(GtTimer *timer)

Stop the time measurement on timer.


void gt_timer_show(GtTimer *timer, FILE *fp)

Output the current state of timer in the format ""GT_WD".%06lds real "GT_WD"s user "GT_WD"s system" to file pointer fp (see gt_timer_show_formatted). The timer is then stopped.


void gt_timer_show_formatted(GtTimer *timer, const char *fmt, FILE *fp)

Output the current state of timer in a user-defined format given by fmt. fmt must be a format string for four "GT_WD" numbers, which are filled with: elapsed seconds, elapsed microseconds, used usertime in seconds, system time in seconds. The output is written to fp. The timer is then stopped.


void gt_timer_get_formatted(GtTimer *t, const char *fmt, GtStr *str)

Like gt_timer_show_formatted(), but appends the output to str.


void gt_timer_show_progress(GtTimer *timer, const char *desc, FILE *fp)

Output the current state of timer on fp since the last call of gt_timer_show_progress() or the last start of timer, along with the current description. The timer is not stopped, but updated with desc to be the next description.


void gt_timer_show_progress_formatted(GtTimer *timer, FILE *fp, const char *desc, ...)

Like gt_timer_show_progress(), but allows one to format the description in a printf()-like fashion.


void gt_timer_show_progress_va(GtTimer *timer, FILE *fp, const char *desc, va_list ap)

Like gt_timer_show_progress(), but allows one to format the description in a vprintf()-like fashion using a va_list argument ap.


void gt_timer_show_progress_final(GtTimer *timer, FILE *fp)

Output the overall time measured with timer from start to now on fp.


void gt_timer_show_cpu_time_by_progress(GtTimer *timer)

Show also user and sys time in output of gt_timer_show_progress[_final]().


void gt_timer_omit_last_stage(GtTimer *timer)

Hide output of last stage time in gt_timer_show_progress_final().


void gt_timer_delete(GtTimer *timer)

Delete timer.


Class GtTool

The GtTool class encapsulates a single GenomeTools tool. Can also be used in external applications based on libgenometools.


void* GtToolArgumentsNew(void)

Callback function. Must return memory to be used as a storage space for tool arguments.


void GtToolArgumentsDelete(void *tool_arguments)

Callback function. Must free up all memory reserved by the GtToolArgumentsNew function in tool_arguments.


GtOptionParser* GtToolOptionParserNew(void *tool_arguments)

Callback function. Must return a new GtOptionParser filling tool_arguments with content.


int GtToolArgumentsCheck(int rest_argc, void *tool_arguments, GtError *err)

Callback function. Checks the validity of tool_arguments when rest_argc additional parameters are given to the tool command line. Must return zero if checks are successful, and a negative value otherwise. In that case err should be set accordingly.


int GtToolRunner(int argc, const char **argv, int parsed_args, void *tool_arguments, GtError*)

Callback function. Acts as a main entry point for the tool logic. Parameters argc and argv are similar to a regular main() function. The parsed_args parameter gives the number of parameters already parsed by the option parser before additional parameters start. Use tool_arguments to access options set by the option parser and write errors to err. This function should return the error status of the tool (i.e. 0 for success). If the return value is not equal to 0, errors written to err will be printed on stderr.


GtTool* GtToolConstructor(void)

Returns a new self-contained GtTool.


GtTool* gt_tool_new(GtToolArgumentsNew tool_arguments_new, GtToolArgumentsDelete tool_arguments_delete, GtToolOptionParserNew tool_option_parser_new, GtToolArgumentsCheck tool_arguments_check, GtToolRunner tool_runner)

Create a new tool object, with a tool argument constructor gt_tool_arguments_new (optional), a tool argument destructor gt_tool_arguments_delete (optional). a tool option parser constructor gt_tool_option_parser_new (required), a tool argument checker gt_tool_arguments_check (optional), a tool runner gt_tool_runner (required), and tool_arguments_new and tool_arguments_delete imply each other. Returns a new GtTool object.


int gt_tool_run(GtTool*, int argc, const char **argv, GtError *err)

Run the given tool as follows: 1. Create a tool arguments object, if necessary. 2. Create a new option parser and pass the tool arguments along. 3. Parse the options (argc and argv) with the created option parser. Return upon error, continue otherwise. 4. Check the tool arguments, if necessary. Return upon error, continue otherwise. 5. Run the actual tool with the given arguments (the tool arguments object is passed along). 6. Delete the tool arguments object, if one was created. Returns -1 and sets err on error, returns 0 otherwise.


void gt_tool_delete(GtTool*)

Delete the given tool.


Class GtToolbox

The GtToolbox class groups several tools into one and can be used to structure GenomeTools into sensible sets of subtools.


GtToolbox* gt_toolbox_new(void)

Return a new empty GtToolbox.


void gt_toolbox_add_tool(GtToolbox *toolbox, const char *toolname, GtTool *tool)

Add tool with name toolname to toolbox. Takes ownership of tool.


void gt_toolbox_add_hidden_tool(GtToolbox *toolbox, const char *toolname, GtTool *tool)

Add (hidden) tool with name toolname to toolbox. Hidden tools are not shown in the output of gt_toolbox_show(). Takes ownership of tool.


GtTool* gt_toolbox_get_tool(GtToolbox *toolbox, const char *toolname)

Get GtTool with name toolname from toolbox. Returns NULL if tool does not exist in toolbox.


int gt_toolbox_show(const char *progname, void *toolbox, GtError*)

Show all tools in toolbox except the hidden ones. Intended to be used as an argument to gt_option_parser_set_comment_func().


void gt_toolbox_delete(GtToolbox *toolbox)

Deletes toolbox.


Class GtTransTable

GtStrArray* gt_trans_table_get_scheme_descriptions(void)

Returns a GtStrArray of translation scheme descriptions, each of the format "%d: %s" where the number is the translation scheme number (usable in gt_translator_set_translation_scheme() and the string is the scheme name.


GtTransTable* gt_trans_table_new(unsigned int scheme, GtError *err)

Returns a translation table as given by scheme which refers to the numbers as reported by gt_translator_get_translation_table_descriptions() or the list given at the NCBI web site http://www.ncbi.nlm.nih.gov/Taxonomy/Utils/wprintgc.cgi. Returns NULL if an error occurred, see err for details.


GtTransTable* gt_trans_table_new_standard(GtError *err)

Returns the standard translation table.


const char* gt_trans_table_description(const GtTransTable *tt)

Returns the description of tt.


int gt_trans_table_translate_codon(const GtTransTable *tt, char c1, char c2, char c3, char *amino, GtError *err)

Writes the translation for the codon c1,c2,c3 to the position pointed to by amino. The current translation scheme set in translator is used. Returns a negative value if an error occurred, see err for details. Otherwise, 0 is returned.


void gt_trans_table_delete(GtTransTable *tt)

Deletes tt.


Class GtTranslator

The GtTranslator can be used to produce 3-frame translations of DNA sequences via an iterator interface.


GtTranslator* gt_translator_new_with_table(GtTransTable *tt, GtCodonIterator *ci)

Creates a new GtTranslator, starting its translation at the current position of ci. The current reading frame is also taken from the state of ci. The translation table tt is used.


GtTranslator* gt_translator_new(GtCodonIterator *ci)

Creates a new GtTranslator, starting its translation at the current position of ci. The current reading frame is also taken from the state of ci. The standard translation table is used.


void gt_translator_set_codon_iterator(GtTranslator *translator, GtCodonIterator *ci)

Reinitializes translator with the position and frame status as given in ci.


void gt_translator_set_translation_table(GtTranslator *translator, GtTransTable *tt)

Selects the translation scheme in translator to the one identified by translation table tt.


GtTranslatorStatus gt_translator_next(GtTranslator *translator, char *translated, unsigned int *frame, GtError *err)

Returns the translation of the next codon. The currently translated character is put in translated while the current reading frame is put in frame. Returns GT_TRANSLATOR_ERROR if an error occurred, see err for details. If the end of the sequence region to translate has been reached, GT_TRANSLATOR_END is returned. Otherwise, GT_TRANSLATOR_OK (equal to 0) is returned.


GtTranslatorStatus gt_translator_find_startcodon(GtTranslator *translator, GtUword *pos, GtError *err)

Moves the translator to the beginning of the first codon in dnaseq (of length dnalen) which is a start codon according to the selected translation scheme in translator. The offset is written to the location pointed to by pos. Returns GT_TRANSLATOR_ERROR if an error occurred, see err for details. If the end of the sequence region to scan has been reached without finding a start codon, GT_TRANSLATOR_END is returned. Otherwise, GT_TRANSLATOR_OK (equal to 0) is returned.


GtTranslatorStatus gt_translator_find_stopcodon(GtTranslator *translator, GtUword *pos, GtError *err)

Moves the translator to the beginning of the first codon in dnaseq (of length dnalen) which is a stop codon according to the selected translation scheme in translator. The offset is written to the location pointed to by pos. Returns GT_TRANSLATOR_ERROR if an error occurred, see err for details. If the end of the sequence region to scan has been reached without finding a stop codon, GT_TRANSLATOR_END is returned. Otherwise, GT_TRANSLATOR_OK (equal to 0) is returned.


GtTranslatorStatus gt_translator_find_codon(GtTranslator *translator, GtStrArray *codons, GtUword *pos, GtError *err)

Moves the translator to the beginning of the first codon in dnaseq (of length dnalen) which belongs to the set of codons specified in codons. The offset is written to the location pointed to by pos. Returns GT_TRANSLATOR_ERROR if an error occurred, see err for details. If the end of the sequence region to scan has been reached without finding one of the codons, GT_TRANSLATOR_END is returned. Otherwise, GT_TRANSLATOR_OK (equal to 0) is returned.


void gt_translator_delete(GtTranslator *translator)

Delete translator.


Class GtTypeChecker

The GtTypeChecker interface, allows one to check the validity of (genome feature) types.


GtTypeChecker* gt_type_checker_ref(GtTypeChecker *type_checker)

Increase the reference count for type_checker and return it.


const char* gt_type_checker_description(GtTypeChecker *type_checker)

Return description of type_checker.


bool gt_type_checker_is_valid(GtTypeChecker *type_checker, const char *type)

Return true if type is a valid type for the given type_checker, false otherwise.


bool gt_type_checker_is_partof(GtTypeChecker *type_checker, const char *parent_type, const char *child_type)

Return true if child_type is partof parent_type, false otherwise.


bool gt_type_checker_is_a(GtTypeChecker *type_checker, const char *parent_type, const char *child_type)

Return true if child_type is a parent_type, false otherwise.


void gt_type_checker_delete(GtTypeChecker *type_checker)

Decrease the reference count for type_checker or delete it, if this was the last reference.


Class GtTypeCheckerOBO

Implements the GtTypeChecker interface with types from an OBO file.


GtTypeChecker* gt_type_checker_obo_new(const char *obo_file_path, GtError *err)

Create a new GtTypeChecker* for OBO file with given obo_file_path. If the OBO file cannot be parsed correctly, NULL is returned and err is set correspondingly.


Class GtUniqStream

Implements the GtNodeStream interface. A GtUniqStream filters out repeated features it retrieves from its node source.


GtNodeStream* gt_uniq_stream_new(GtNodeStream*)

Create a GtUniqStream object which filters out repeated feature node graphs it retrieves from the sorted in_stream and return all other nodes. Two feature node graphs are considered to be repeated if they have the same depth-first traversal and each corresponding feature node pair is similar according to the gt_feature_node_is_similar() method. For such a repeated feature node graph the one with the higher score (of the top-level feature) is kept. If only one of the feature node graphs has a defined score, this one is kept.


Class GtVisitorStream

Implements the GtNodeStream interface.


GtNodeStream* gt_visitor_stream_new(GtNodeStream *in_stream, GtNodeVisitor *node_visitor)

Create a new GtVisitorStream*, takes ownership of node_visitor. This stream applies node_visitor to each node which passes through it. Can be used to implement all streams with such a functionality.


Class GtXRFChecker

The GtXRFChecker interface, allows one to check the validity of Dbxref and Ontology_type attributes.


GtXRFChecker* gt_xrf_checker_new(const char *file_path, GtError *err)

Create a new GtXRFChecker from the definitions found in file_path. Returns NULL on error, and err is set accordingly.


GtXRFChecker* gt_xrf_checker_ref(GtXRFChecker *xrf_checker)

Increase reference count for xrf_checker


bool gt_xrf_checker_is_valid(GtXRFChecker *xrf_checker, const char *value, GtError *err)

Return true if value is valid for the given xrf_checker, false otherwise. In case of value being invalid, err is set accordingly.


void gt_xrf_checker_delete(GtXRFChecker *xrf_checker)

Decrease the reference count for xrf_checker or delete it.


Module Array2dim

#define gt_array2dim_malloc(ARRAY2DIM, ROWS, COLUMNS)

Allocates a new 2-dimensional array with dimensions ROWS x COLUMNS and assigns a pointer to the newly allocated space to ARRAY2DIM. The size of each element is determined automatically from the type of the ARRAY2DIM pointer.


#define gt_array2dim_calloc(ARRAY2DIM, ROWS, COLUMNS)

Allocates a new 2-dimensional array with dimensions ROWS x COLUMNS and assigns a pointer to the newly allocated space to ARRAY2DIM. The allocated space is initialized to be filled with zeroes. The size of each element is determined automatically from the type of the ARRAY2DIM pointer.


int gt_array2dim_example(GtError*)

An example for usage of the Array2dim module.


#define gt_array2dim_delete(ARRAY2DIM)

Frees the space allocated for the 2-dimensional array pointed to by ARRAY2DIM.


Module Assert

#define gt_assert(expression)

The gt_assert() macro tests the given expression and if it is false, the calling process is terminated. A diagnostic message is written to stderr and the abort(3) function is called, effectively terminating the program. If expression is true, the gt_assert() macro does nothing.


Module Bsearch

void* gt_bsearch_data(const void *key, const void *base, size_t nmemb, size_t size, GtCompareWithData, void *data)

Similar interface to bsearch(3), except that the GtCompareWithData function gets an additional data pointer.


void gt_bsearch_all(GtArray *members, const void *key, const void *base, size_t nmemb, size_t size, GtCompareWithData, void *data)

Similar interface to gt_bsearch_data(), except that all members which compare as equal are stored in the members array. The order in which the elements are added is undefined.


void gt_bsearch_all_mark(GtArray *members, const void *key, const void *base, size_t nmemb, size_t size, GtCompareWithData, void *data, GtBittab*)

Similar interface to gt_bsearch_all(). Additionally, if a bittab is given (which must be of size nmemb), the bits corresponding to the found elements are marked (i.e., set).


Module BytePopcount

extern const unsigned char gt_byte_popcount[256]

Lookup table containing the popcount (number of set bits). Entry at i equals popcount(i).


Module ByteSelect

extern const unsigned char gt_byte_select[2048]

Contains 256 * 8 select values, Entry at index 256 * j + i equals the position of the (j + 1)-th set bit in byte i. Positions lie in the range [0..7]. Returns 8 if byte i contains less than j set bits.


Module Countingsort

void gt_countingsort(void *out, const void *in, size_t elem_size, GtUword size, GtUword max_elemvalue, void *data, GtGetElemvalue get_elemvalue)

Sort the array of elements pointed to by in containing size many elements of size elem_size and store the result in the array out of the same size. max_elemvalue denotes the maximum value an element can have. get_elemvalue should return an integer value for the given element elem. Implements the counting sort algorithm. For a description see for example page 175 to page 177 of the book: T.H. Cormen, C.E. Leiserson and R.L. Rivest. Introduction to Algorithms. MIT Press: Cambridge, MA, 1990.


GtUword gt_countingsort_get_max(const void *in, size_t elem_size, GtUword size, void *data, GtGetElemvalue get_elemvalue)

If max_elemvalue is not known, it can be determined with this function.


Module Cstr

char* gt_cstr_dup(const char *cstr)

Creates a duplicate of string cstr using the GenomeTools memory allocator.


char** gt_cstr_split(const char *cstr, char sep)

Splits the \0-terminated cstr at all positions where sep occurs and returns a C string array in which each element is a separate string between the occurrences of sep. The string array is terminated by NULL. The caller is responsible to free the result.


char* gt_cstr_dup_nt(const char *cstr, GtUword length)

Creates a duplicate of string cstr using the GenomeTools memory allocator. The string needs not be \0-terminated, instead its length must be given.


void gt_cstr_rep(char *cstr, char f, char t)

Replace each occurrence of f in cstr to t.


void gt_cstr_show(const char *cstr, GtUword length, FILE *outfp)

Outputs the first length characters of the string cstr to file pointer outfp.


GtUword gt_cstr_length_up_to_char(const char *cstr, char c)

Returns the length of the prefix of cstr ending just before c, if cstr does not contain c, strlen(cstr) is returned.


char* gt_cstr_rtrim(char* cstr, char remove)

Removes all occurrences of remove from the right end of cstr.


Module Deprecated

#define GT_DEPRECATED(msg)

Deprecated functions, typedefs and structs in API headers should be annotated with this macro to get warnings when the gcc or clang compiler is used. msg should inform about an alternative API.


Module Endianess

bool gt_is_little_endian(void)

Returns true if host CPU is little-endian, false otherwise.


Module FASTA

void gt_fasta_show_entry(const char *description, const char *sequence, GtUword sequence_length, GtUword width, GtFile *outfp)

Print a fasta entry with optional description and mandatory sequence to outfp. If width is != 0 the sequence is formatted accordingly.


void gt_fasta_show_entry_nt(const char *description, GtUword description_length, const char *sequence, GtUword sequence_length, GtUword width, GtFile *outfp)

Print a fasta entry with optional description and mandatory sequence to outfp. If width is != 0 the sequence is formatted accordingly. Will print at most sequence_length characters from sequence if no '\0'-byte is encountered. description and description_length are handled accordingly if present.


void gt_fasta_show_entry_str(const char *description, const char *sequence, GtUword sequence_length, GtUword width, GtStr *outstr)

Append a fasta entry with optional description and mandatory sequence to outstr. If width is != 0 the sequence is formatted accordingly.


void gt_fasta_show_entry_nt_str(const char *description, GtUword description_length, const char *sequence, GtUword sequence_length, GtUword width, GtStr *outstr)

Print a fasta entry with optional description and mandatory sequence to outstr. If width is != 0 the sequence is formatted accordingly. Will print at most sequence_length characters from sequence if no '\0'-byte is encountered. description and description_length are handled accordingly if present.


Module Fileutils

const char* gt_file_suffix(const char *path)

Returns the suffix of path, if there is any. Returns "" otherwise. The suffix is the part after and including the last '.' but after the last '/' (or '\' on Windows). Except if path ends with ".gz" or ".bz2", then the suffix is the part after and including the second last '.'.


bool gt_file_exists(const char *path)

Returns true if the file with the given path exists, false otherwise.


bool gt_file_exists_with_suffix(const char *path, const char *suffix)

Returns true if the file with the name composed of the concatenation of path and suffix exists, false otherwise.


bool gt_file_is_newer(const char *a, const char *b)

Returns true if the file with path a has a later modification time than the file with path b, false otherwise.


GtUword gt_file_number_of_lines(const char*)

Returns the number of lines in a file.


void gt_file_dirname(GtStr *path, const char *file)

Set path to the dirname of file, if it has one, to "" otherwise.


int gt_file_find_in_path(GtStr *path, const char *file, GtError*)

Find file in $PATH, if it has no dirname; set path to dirname otherwise. Sets path to the empty string if file could not be found in $PATH.


int gt_file_find_in_env(GtStr *path, const char *file, const char *env, GtError*)

Find file in the ':'-separated directory list (on Windows ';'-separated) specified in environment variable $env, if it has no dirname; set path to dirname otherwise. Sets path to the empty string if file could not be found in $env.


off_t gt_file_estimate_size(const char *file)

Return the (estimated) size of file. If file is uncompressed, the exact size is returned. If file is compressed, an estimation which assumes that file contains a DNA sequence is returned.


off_t gt_files_estimate_total_size(const GtStrArray *filenames)

Return the (estimated) total size of all files given in filenames. Uses gt_file_estimate_size().


int gt_files_guess_if_protein_sequences(const GtStrArray *filenames, GtError *err)

Guesse if the sequences contained in the files given in filenames are protein sequences. Returns 1 if the guess is that the files contain protein sequences. Returns 0 if the guess is that the files contain DNA sequences. Returns -1 if an error occurs while reading the files (err is set accordingly).


int gt_file_find_exec_in_path(GtStr *path, const char *file, GtError *err)

Find regular executable file in $PATH, if it has no dirname; set path to dirname otherwise. Sets path to the empty string if regular executable file could not be found in $PATH.


off_t gt_file_size(const char *file)

Return the size of file in bytes. file must exist.


off_t gt_file_size_with_suffix(const char *path, const char *suffix)

Returns the size of the file whose name is composed of the concatenation of path and suffix. file must exist.


Module FunctionPointer

int GtCompare(const void *a, const void *b)

Functions of this type return less than 0 if a is smaller than b, 0 if a is equal to b, and greater 0 if a is larger than b. Thereby, the operators smaller, equal, and larger are implementation dependent. Do not count on these functions to return -1, 0, or 1!


int GtCompareWithData(const void*, const void*, void *data)

Similar to GtCompare, but with an additional data pointer.


void GtFree(void*)

The generic free function pointer type.


Module Grep

int gt_grep(bool *match, const char *pattern, const char *line, GtError*)

Set match to true if pattern matches line, to false otherwise.


int gt_grep_nt(bool *match, const char *pattern, const char *line, size_t len, GtError *err)

Set match to true if pattern matches line up to len, to false otherwise.


Module Init

void gt_lib_init(void)

Initialize this GenomeTools library instance. This has to be called before the library is used!


void gt_lib_reg_atexit_func(void)

Registers exit function which calls gt_lib_clean() at exit.


int gt_lib_clean(void)

Frees all static data associated with the library. Returns 0 if no memory map, file pointer, or memory has been leaked and a value != 0 otherwise.


Module Log

void gt_log_enable(void)

Enable logging.


bool gt_log_enabled(void)

Returns true if logging is enabled, false otherwise


void gt_log_log(const char *format, ...)

Prints the log message obtained from format and following parameters according if logging is enabled. The logging output is prefixed with the string "debug: " and finished by a newline.


void gt_log_vlog(const char *format, va_list)

Prints the log message obtained from format and following parameter according to if logging is enabled analog to gt_log_log(). But in contrast to gt_log_log() gt_log_vlog() does not accept individual arguments but a single va_list argument instead.


FILE* gt_log_fp(void)

Return logging file pointer.


void gt_log_set_fp(FILE *fp)

Set logging file pointer to fp.


Module MD5Fingerprint

char* gt_md5_fingerprint(const char *sequence, GtUword seqlen)

Returns an MD5 fingerprint of sequence with length seqlen transformed to upper case letters (with toupper(3)). It is the responsibility of the caller to free the returned string.


Module MemoryAllocation

#define gt_malloc(size)

Allocate uninitialized space for an object whose size is specified by size and return it. Besides the fact that it never returns NULL analog to malloc(3).


#define gt_calloc(nmemb, size)

Allocate contiguous space for an array of nmemb objects, each of whose size is size. The space is initialized to zero. Besides the fact that it never returns NULL analog to calloc(3).


#define gt_realloc(ptr, size)

Change the size of the object pointed to by ptr to size bytes and return a pointer to the (possibly moved) object. Besides the fact that it never returns NULL analog to realloc(3).


#define gt_free(ptr)

Free the space pointed to by ptr. If ptr equals NULL, no action occurs. Analog to free(3).


void gt_free_func(void *ptr)

Analog to gt_free(), but usable as a function pointer.


Module Msort

void gt_msort(void *base, size_t nmemb, size_t size, GtCompare compar)

Sorts an array of nmemb elements, each of size size, according to compare function compar. Uses the merge sort algorithm, the interface equals qsort(3).


void gt_msort_r(void *base, size_t nmemb, size_t size, void *comparinfo, GtCompareWithData compar)

Identical to gt_msort() except that the compare function is of GtCompareWithData type accepting comparinfo as arbitrary data.


Module Multithread

int gt_multithread(GtThreadFunc function, void *data, GtError *err)

Execute function (with data passed to it) in gt_jobs many parallel threads, if threading is enabled. Otherwise function is executed gt_jobs many times sequentially. gt_jobs is a global unsigned int variable.


Module POSIX

char* gt_basename(const char *path)

This module implements the function gt_basename() according to the specifications in http://www.unix-systems.org/onlinepubs/7908799/xsh/basename.html and http://www.opengroup.org/onlinepubs/009695399/ gt_basename() is equivalent to the function basename(3) which is available on most unix systems, but in different libraries and with slightly different functionality. gt_basename() takes the pathname pointed to by path and returns a pointer to the final component of the pathname, deleting any trailing '/' characters. If path consists entirely of the '/' character, then gt_basename() returns a pointer to the string "/". On Windows '\' is used instead of '/'. If path is a null pointer or points to an empty string, gt_basename() returns a pointer to the string ".". See the implementation of gt_basename_unit_test() for additional examples. The caller is responsible for freeing the received pointer!


Module Parseutils

int gt_parse_int(int *out, const char *nptr)

Parse integer from nptr and store result in out. Returns 0 upon success and -1 upon failure.


int gt_parse_uint(unsigned int *out, const char *nptr)

Parse unsigned integer from nptr and store result in out. Returns 0 upon success and -1 upon failure.


int gt_parse_word(GtWord *out, const char *nptr)

Parse GtWord from nptr and store result in out. Returns 0 upon success and -1 upon failure.


int gt_parse_uword(GtUword *out, const char *nptr)

Parse GtUword from nptr and store result in out. Returns 0 upon success and -1 upon failure.


int gt_parse_double(double *out, const char *nptr)

Parse double from nptr and store result in out. Returns 0 upon success and -1 upon failure.


int gt_parse_range(GtRange *rng, const char *start, const char *end, unsigned int line_number, const char *filename, GtError*)

Parse a range given by start and end, writing the result into rng. Enforces that start is smaller or equal than end. Give filename and line_number for error reporting. Returns 0 upon success and -1 upon failure.


int gt_parse_range_tidy(GtRange *rng, const char *start, const char *end, unsigned int line_number, const char *filename, GtError*)

Like gt_parse_range, but issues a warning if start is larger then end and swaps both values. It also issues a warning, if start and/or end is not-positive and sets the corresponding value to 1.


Module Qsort

void gt_qsort_r(void *a, size_t n, size_t es, void *data, GtCompareWithData cmp)

Like qsort(3), but allows an additional data pointer passed to the GtCompareWithData comparison function cmp.


Module Reverse

int gt_reverse_complement(char *dna_seq, GtUword seqlen, GtError*)

Reverse dna_seq of length seqlen in place.


Module Strcmp

int gt_strcmp(const char *s1, const char *s2)

Returns 0 if s1 == s2, otherwise the equivalent of strcmp(s1,s2). Useful as a performance improvement in some cases (for example, to compare symbols).


Module Symbol

const char* gt_symbol(const char *cstr)

Return a symbol (a canonical representation) for cstr. An advantage of symbols is that they can be compared for equality by a simple pointer comparison, rather than using strcmp() (as it is done in gt_strcmp()). Furthermore, a symbol is stored only once in memory for equal cstrs, but keep in mind that this memory can never be freed safely during the lifetime of the calling program. Therefore, it should only be used for a small set of cstrs.


Module Threads

extern unsigned int gt_jobs

Number of parallel threads to be used.


Module Undef

#define GT_UNDEF_BOOL

The undefined bool value.


#define GT_UNDEF_CHAR

The undefined char value.


#define GT_UNDEF_DOUBLE

The undefined double value.


#define GT_UNDEF_FLOAT

The undefined float value.


#define GT_UNDEF_INT

The undefined int value.


#define GT_UNDEF_WORD

The undefined GtWord value.


#define GT_UNDEF_LONG

The undefined long value. deprecated


#define GT_UNDEF_UCHAR

The undefined unsigned char value.


#define GT_UNDEF_UINT

The undefined unsigned int value.


#define GT_UNDEF_UWORD

The undefined GtUword value.


#define GT_UNDEF_ULONG

The undefined unsigned long value. deprecated


Module Unused

#define GT_UNUSED

Unused function arguments should be annotated with this macro to get rid of compiler warnings.


Module Version

const char* gt_version_check(unsigned int required_major, unsigned int required_minor, unsigned int required_micro)

Check that the GenomeTools library in use is compatible with the given version. Generally you would pass in the constants GT_MAJOR_VERSION, GT_MINOR_VERSION, and GT_MICRO_VERSION as the three arguments to this function. Returns NULL if the GenomeTools library is compatible with the given version, or a string describing the version mismatch, if the library is not compatible.


const char* gt_version(void)

Return the version of the GenomeTools library in use as a string.


Module Warning

void GtWarningHandler(void *data, const char *format, va_list ap)

Handler type used to process warnings.


void gt_warning(const char *format, ...)

Print a warning according to format and ..., if a handler is set.


void gt_warning_disable(void)

Disable that warnings are shown. That is, subsequent gt_warning() calls have no effect.


void gt_warning_set_handler(GtWarningHandler warn_handler, void *data)

Set warn_handler to handle all warnings issued with gt_warning(). The data is passed to warning_handler on each invocation.


void gt_warning_default_handler(void *data, const char *format, va_list ap)

The default warning handler which prints on stderr. "warning: " is prepended and a newline is appended to the message defined by format and ap. Does not use data.


GtWarningHandler gt_warning_get_handler(void)

Return currently used GtWarningHandler.


void* gt_warning_get_data(void)

Return currently used data which is passed to the currently used GtWarningHandler.


Module XANSI

void gt_xatexit(void (*function)

Similar to atexit(3), terminates on error.


void gt_xfclose(FILE*)

Similar to fclose(3), terminates on error.


void gt_xfflush(FILE*)

Similar to fflush(3), terminates on error.


int gt_xfgetc(FILE*)

Similar to fgetc(3), terminates on error.


char* gt_xfgets(char *s, int size, FILE *stream)

Similar to fgets(3), terminates on error.


void gt_xfgetpos(FILE*, fpos_t*)

Similar to fgetpos(3), terminates on error.


FILE* gt_xfopen(const char *path, const char *mode)

Similar to fopen(3), terminates on error.


void gt_xfputc(int, FILE*)

Similar to fputc(3), terminates on error.


void gt_xfputs(const char*, FILE*)

Similar to fputs(3), terminates on error.


size_t gt_xfread(void *ptr, size_t size, size_t nmemb, FILE *fp)

Similar to fread(3), terminates on error.


#define gt_xfread_one(ptr, fp)

Shortcut to gt_xfread() which reads a single element of data (of size sizeof (*ptr)) from fp and stores the result in ptr.


void gt_xfseek(FILE*, GtWord offset, int whence)

Similar to fseek(3), terminates on error.


void gt_xfsetpos(FILE*, const fpos_t*)

Similar to fsetpos(3), terminates on error.


void gt_xfwrite(const void *ptr, size_t size, size_t nmemb, FILE *fp)

Similar to fwrite(3), terminates on error.


#define gt_xfwrite_one(ptr, fp)

Shortcut to gt_xfwrite() which writes a single element of data (of size sizeof (*ptr)) from ptr to fp.


void gt_xputchar(int)

Similar to putchar(3), terminates on error.


void gt_xputs(const char*)

Similar to puts(3), terminates on error.


void gt_xremove(const char*)

Similar to remove(3), terminates on error.


void gt_xungetc(int, FILE*)

Similar to ungetc(3), terminates on error.


void gt_xvfprintf(FILE *stream, const char *format, va_list ap)

Similar to vfprintf(3), terminates on error.


int gt_xvsnprintf(char *str, size_t size, const char *format, va_list ap)

Similar to vsnprintf(3), terminates on error.


Index

GT_DEPRECATED
GT_OPTION_PARSER_TERMINAL_WIDTH
GT_PHASE_CHARS
GT_STRAND_CHARS
GT_UNDEF_BOOL
GT_UNDEF_CHAR
GT_UNDEF_DOUBLE
GT_UNDEF_FLOAT
GT_UNDEF_INT
GT_UNDEF_LONG
GT_UNDEF_UCHAR
GT_UNDEF_UINT
GT_UNDEF_ULONG
GT_UNDEF_UWORD
GT_UNDEF_WORD
GT_UNUSED
GtCompare
GtCompareWithData
GtDiscDistriIterFunc
GtFeatureNodeAttributeIterFunc
GtFree
GtHashmapVisitFunc
GtNodeStreamFreeFunc
GtNodeStreamNextFunc
GtTagValueMapIteratorFunc
GtThreadFunc
GtToolArgumentsCheck
GtToolArgumentsDelete
GtToolArgumentsNew
GtToolConstructor
GtToolOptionParserNew
GtToolRunner
GtTrackOrderingFunc
GtTrackSelectorFunc
GtWarningHandler
gt_add_introns_stream_new
gt_alphabet_add_mapping
gt_alphabet_add_wildcard
gt_alphabet_bits_per_symbol
gt_alphabet_characters
gt_alphabet_clone
gt_alphabet_decode
gt_alphabet_decode_seq_to_cstr
gt_alphabet_decode_seq_to_fp
gt_alphabet_decode_seq_to_str
gt_alphabet_delete
gt_alphabet_echo_pretty_symbol
gt_alphabet_encode
gt_alphabet_encode_seq
gt_alphabet_equals
gt_alphabet_guess
gt_alphabet_is_dna
gt_alphabet_is_protein
gt_alphabet_new_dna
gt_alphabet_new_empty
gt_alphabet_new_from_file
gt_alphabet_new_from_file_no_suffix
gt_alphabet_new_from_sequence
gt_alphabet_new_from_string
gt_alphabet_new_protein
gt_alphabet_num_of_chars
gt_alphabet_output
gt_alphabet_pretty_symbol
gt_alphabet_ref
gt_alphabet_size
gt_alphabet_symbolmap
gt_alphabet_to_file
gt_alphabet_to_str
gt_alphabet_valid_input
gt_alphabet_wildcard_show
gt_anno_db_gfflike_new
gt_anno_db_schema_delete
gt_anno_db_schema_get_feature_index
gt_array2dim_calloc
gt_array2dim_delete
gt_array2dim_example
gt_array2dim_malloc
gt_array_add
gt_array_add_array
gt_array_add_elem
gt_array_clone
gt_array_cmp
gt_array_delete
gt_array_elem_size
gt_array_get
gt_array_get_first
gt_array_get_last
gt_array_get_space
gt_array_in_stream_new
gt_array_new
gt_array_out_stream_all_new
gt_array_out_stream_new
gt_array_pop
gt_array_ref
gt_array_rem
gt_array_rem_span
gt_array_reset
gt_array_reverse
gt_array_set_size
gt_array_size
gt_array_sort
gt_array_sort_stable
gt_array_sort_stable_with_data
gt_array_sort_with_data
gt_assert
gt_basename
gt_bed_in_stream_new
gt_bed_in_stream_set_block_type
gt_bed_in_stream_set_feature_type
gt_bed_in_stream_set_thick_feature_type
gt_bittab_and
gt_bittab_and_equal
gt_bittab_bit_is_set
gt_bittab_cmp
gt_bittab_complement
gt_bittab_count_set_bits
gt_bittab_delete
gt_bittab_equal
gt_bittab_get_all_bitnums
gt_bittab_get_first_bitnum
gt_bittab_get_last_bitnum
gt_bittab_get_next_bitnum
gt_bittab_nand
gt_bittab_new
gt_bittab_or
gt_bittab_or_equal
gt_bittab_set_bit
gt_bittab_shift_left_equal
gt_bittab_shift_right_equal
gt_bittab_show
gt_bittab_size
gt_bittab_unset
gt_bittab_unset_bit
gt_block_caption_is_visible
gt_block_clone
gt_block_delete
gt_block_get_caption
gt_block_get_range
gt_block_get_range_ptr
gt_block_get_size
gt_block_get_strand
gt_block_get_top_level_feature
gt_block_get_type
gt_block_has_only_one_fullsize_element
gt_block_merge
gt_block_new
gt_block_new_from_node
gt_block_ref
gt_block_set_caption
gt_block_set_caption_visibility
gt_block_set_strand
gt_bsearch_all
gt_bsearch_all_mark
gt_bsearch_data
gt_byte_popcount[256]
gt_byte_select[2048]
gt_calloc
gt_canvas_cairo_context_new
gt_canvas_cairo_file_new
gt_canvas_cairo_file_to_file
gt_canvas_cairo_file_to_stream
gt_canvas_delete
gt_canvas_get_height
gt_cds_stream_new
gt_check_boundaries_visitor_new
gt_codon_iterator_current_position
gt_codon_iterator_delete
gt_codon_iterator_encseq_new
gt_codon_iterator_encseq_new_with_readmode
gt_codon_iterator_length
gt_codon_iterator_next
gt_codon_iterator_rewind
gt_codon_iterator_simple_new
gt_color_delete
gt_color_equals
gt_color_new
gt_color_set
gt_comment_node_cast
gt_comment_node_get_comment
gt_comment_node_new
gt_comment_node_try_cast
gt_countingsort
gt_countingsort_get_max
gt_csa_stream_new
gt_cstr_dup
gt_cstr_dup_nt
gt_cstr_length_up_to_char
gt_cstr_rep
gt_cstr_rtrim
gt_cstr_show
gt_cstr_split
gt_cstr_table_add
gt_cstr_table_delete
gt_cstr_table_get
gt_cstr_table_get_all
gt_cstr_table_new
gt_cstr_table_remove
gt_cstr_table_reset
gt_custom_track_delete
gt_custom_track_gc_content_new
gt_custom_track_ref
gt_custom_track_script_wrapper_new
gt_diagram_add_custom_track
gt_diagram_delete
gt_diagram_get_range
gt_diagram_new
gt_diagram_new_from_array
gt_diagram_reset_track_selector_func
gt_diagram_set_track_selector_func
gt_disc_distri_add
gt_disc_distri_add_multi
gt_disc_distri_foreach
gt_disc_distri_foreach_in_reverse_order
gt_disc_distri_get
gt_disc_distri_new
gt_disc_distri_show
gt_dlist_add
gt_dlist_delete
gt_dlist_example
gt_dlist_find
gt_dlist_first
gt_dlist_last
gt_dlist_new
gt_dlist_new_with_data
gt_dlist_remove
gt_dlist_size
gt_dlistelem_get_data
gt_dlistelem_next
gt_dlistelem_previous
gt_dup_feature_stream_new
gt_encseq_alphabet
gt_encseq_builder_add_cstr
gt_encseq_builder_add_encoded
gt_encseq_builder_add_encoded_own
gt_encseq_builder_add_multiple_encoded
gt_encseq_builder_add_str
gt_encseq_builder_build
gt_encseq_builder_create_des_tab
gt_encseq_builder_create_esq_tab
gt_encseq_builder_create_sds_tab
gt_encseq_builder_create_ssp_tab
gt_encseq_builder_delete
gt_encseq_builder_disable_description_support
gt_encseq_builder_disable_multiseq_support
gt_encseq_builder_do_not_create_des_tab
gt_encseq_builder_do_not_create_esq_tab
gt_encseq_builder_do_not_create_sds_tab
gt_encseq_builder_do_not_create_ssp_tab
gt_encseq_builder_enable_description_support
gt_encseq_builder_enable_multiseq_support
gt_encseq_builder_new
gt_encseq_builder_reset
gt_encseq_builder_set_logger
gt_encseq_create_reader_with_readmode
gt_encseq_delete
gt_encseq_description
gt_encseq_effective_filelength
gt_encseq_encoder_are_descs_clipped
gt_encseq_encoder_clip_desc
gt_encseq_encoder_create_des_tab
gt_encseq_encoder_create_md5_tab
gt_encseq_encoder_create_sds_tab
gt_encseq_encoder_create_ssp_tab
gt_encseq_encoder_delete
gt_encseq_encoder_des_tab_requested
gt_encseq_encoder_disable_description_support
gt_encseq_encoder_disable_lossless_support
gt_encseq_encoder_disable_md5_support
gt_encseq_encoder_disable_multiseq_support
gt_encseq_encoder_do_not_create_des_tab
gt_encseq_encoder_do_not_create_md5_tab
gt_encseq_encoder_do_not_create_sds_tab
gt_encseq_encoder_do_not_create_ssp_tab
gt_encseq_encoder_enable_description_support
gt_encseq_encoder_enable_lossless_support
gt_encseq_encoder_enable_md5_support
gt_encseq_encoder_enable_multiseq_support
gt_encseq_encoder_encode
gt_encseq_encoder_get_timer
gt_encseq_encoder_is_input_dna
gt_encseq_encoder_is_input_protein
gt_encseq_encoder_md5_tab_requested
gt_encseq_encoder_new
gt_encseq_encoder_representation
gt_encseq_encoder_sds_tab_requested
gt_encseq_encoder_set_input_dna
gt_encseq_encoder_set_input_protein
gt_encseq_encoder_set_logger
gt_encseq_encoder_set_timer
gt_encseq_encoder_ssp_tab_requested
gt_encseq_encoder_symbolmap_file
gt_encseq_encoder_use_representation
gt_encseq_encoder_use_symbolmap_file
gt_encseq_extract_decoded
gt_encseq_extract_encoded
gt_encseq_filenames
gt_encseq_filenum
gt_encseq_filenum_first_seqnum
gt_encseq_filestartpos
gt_encseq_get_decoded_char
gt_encseq_get_encoded_char
gt_encseq_has_description_support
gt_encseq_has_md5_support
gt_encseq_has_multiseq_support
gt_encseq_indexname
gt_encseq_is_64_bit
gt_encseq_is_mirrored
gt_encseq_loader_delete
gt_encseq_loader_des_tab_required
gt_encseq_loader_disable_autosupport
gt_encseq_loader_do_not_mirror
gt_encseq_loader_do_not_require_des_tab
gt_encseq_loader_do_not_require_sds_tab
gt_encseq_loader_do_not_require_ssp_tab
gt_encseq_loader_drop_description_support
gt_encseq_loader_drop_lossless_support
gt_encseq_loader_drop_md5_support
gt_encseq_loader_drop_multiseq_support
gt_encseq_loader_enable_autosupport
gt_encseq_loader_load
gt_encseq_loader_mirror
gt_encseq_loader_new
gt_encseq_loader_require_des_tab
gt_encseq_loader_require_description_support
gt_encseq_loader_require_lossless_support
gt_encseq_loader_require_md5_support
gt_encseq_loader_require_multiseq_support
gt_encseq_loader_require_sds_tab
gt_encseq_loader_require_ssp_tab
gt_encseq_loader_sds_tab_required
gt_encseq_loader_set_logger
gt_encseq_loader_ssp_tab_required
gt_encseq_max_seq_length
gt_encseq_min_seq_length
gt_encseq_mirror
gt_encseq_num_of_files
gt_encseq_num_of_sequences
gt_encseq_position_is_separator
gt_encseq_position_is_wildcard
gt_encseq_reader_delete
gt_encseq_reader_next_decoded_char
gt_encseq_reader_next_encoded_char
gt_encseq_reader_reinit_with_readmode
gt_encseq_ref
gt_encseq_seqlength
gt_encseq_seqnum
gt_encseq_seqstartpos
gt_encseq_total_length
gt_encseq_unmirror
gt_encseq_version
gt_eof_node_new
gt_eof_node_try_cast
gt_error_check
gt_error_delete
gt_error_get
gt_error_is_set
gt_error_new
gt_error_set
gt_error_set_nonvariadic
gt_error_unset
gt_error_vset
gt_extract_feature_stream_new
gt_fasta_show_entry
gt_fasta_show_entry_nt
gt_fasta_show_entry_nt_str
gt_fasta_show_entry_str
gt_feature_in_stream_new
gt_feature_in_stream_use_orig_ranges
gt_feature_index_add_feature_node
gt_feature_index_add_gff3file
gt_feature_index_add_region_node
gt_feature_index_delete
gt_feature_index_get_features_for_range
gt_feature_index_get_features_for_seqid
gt_feature_index_get_first_seqid
gt_feature_index_get_orig_range_for_seqid
gt_feature_index_get_range_for_seqid
gt_feature_index_get_seqids
gt_feature_index_gfflike_get_all_features
gt_feature_index_has_seqid
gt_feature_index_memory_get_node_by_ptr
gt_feature_index_memory_new
gt_feature_index_remove_node
gt_feature_index_save
gt_feature_node_add_attribute
gt_feature_node_add_child
gt_feature_node_cast
gt_feature_node_contains_marked
gt_feature_node_foreach_attribute
gt_feature_node_get_attribute
gt_feature_node_get_attribute_list
gt_feature_node_get_multi_representative
gt_feature_node_get_phase
gt_feature_node_get_score
gt_feature_node_get_source
gt_feature_node_get_strand
gt_feature_node_get_type
gt_feature_node_has_source
gt_feature_node_has_type
gt_feature_node_is_marked
gt_feature_node_is_multi
gt_feature_node_is_pseudo
gt_feature_node_is_similar
gt_feature_node_iterator_delete
gt_feature_node_iterator_new
gt_feature_node_iterator_new_direct
gt_feature_node_iterator_next
gt_feature_node_make_multi_representative
gt_feature_node_mark
gt_feature_node_new
gt_feature_node_new_pseudo
gt_feature_node_new_pseudo_template
gt_feature_node_new_standard_gene
gt_feature_node_number_of_children
gt_feature_node_number_of_children_of_type
gt_feature_node_remove_attribute
gt_feature_node_remove_leaf
gt_feature_node_score_is_defined
gt_feature_node_set_attribute
gt_feature_node_set_multi_representative
gt_feature_node_set_phase
gt_feature_node_set_score
gt_feature_node_set_source
gt_feature_node_set_strand
gt_feature_node_set_type
gt_feature_node_try_cast
gt_feature_node_unmark
gt_feature_node_unset_multi
gt_feature_node_unset_score
gt_feature_out_stream_new
gt_feature_stream_new
gt_file_delete
gt_file_delete_without_handle
gt_file_dirname
gt_file_estimate_size
gt_file_exists
gt_file_exists_with_suffix
gt_file_find_exec_in_path
gt_file_find_in_env
gt_file_find_in_path
gt_file_is_newer
gt_file_new
gt_file_new_from_fileptr
gt_file_number_of_lines
gt_file_ref
gt_file_size
gt_file_size_with_suffix
gt_file_suffix
gt_file_xfgetc
gt_file_xfputc
gt_file_xfputs
gt_file_xprintf
gt_file_xread
gt_file_xrewind
gt_file_xwrite
gt_files_estimate_total_size
gt_files_guess_if_protein_sequences
gt_free
gt_free_func
gt_genome_node_accept
gt_genome_node_add_user_data
gt_genome_node_cmp
gt_genome_node_delete
gt_genome_node_get_end
gt_genome_node_get_filename
gt_genome_node_get_length
gt_genome_node_get_line_number
gt_genome_node_get_range
gt_genome_node_get_seqid
gt_genome_node_get_start
gt_genome_node_get_user_data
gt_genome_node_ref
gt_genome_node_release_user_data
gt_genome_node_set_range
gt_genome_nodes_sort
gt_genome_nodes_sort_stable
gt_gff3_in_stream_check_id_attributes
gt_gff3_in_stream_enable_strict_mode
gt_gff3_in_stream_enable_tidy_mode
gt_gff3_in_stream_get_used_types
gt_gff3_in_stream_new_sorted
gt_gff3_in_stream_new_unsorted
gt_gff3_in_stream_set_type_checker
gt_gff3_in_stream_show_progress_bar
gt_gff3_out_stream_new
gt_gff3_out_stream_retain_id_attributes
gt_gff3_out_stream_set_fasta_width
gt_gff3_parser_check_id_attributes
gt_gff3_parser_check_region_boundaries
gt_gff3_parser_delete
gt_gff3_parser_do_not_check_region_boundaries
gt_gff3_parser_enable_tidy_mode
gt_gff3_parser_new
gt_gff3_parser_parse_genome_nodes
gt_gff3_parser_reset
gt_gff3_parser_set_offset
gt_gff3_parser_set_type_checker
gt_gff3_parser_set_xrf_checker
gt_gff3_visitor_new
gt_gff3_visitor_retain_id_attributes
gt_gff3_visitor_set_fasta_width
gt_graphics_cairo_draw_curve_data
gt_graphics_cairo_new
gt_graphics_cairo_new_from_context
gt_graphics_delete
gt_graphics_draw_arrowhead
gt_graphics_draw_box
gt_graphics_draw_caret
gt_graphics_draw_colored_text
gt_graphics_draw_curve_data
gt_graphics_draw_dashes
gt_graphics_draw_horizontal_line
gt_graphics_draw_line
gt_graphics_draw_rectangle
gt_graphics_draw_text
gt_graphics_draw_text_centered
gt_graphics_draw_text_clip
gt_graphics_draw_text_left
gt_graphics_draw_text_right
gt_graphics_draw_vertical_line
gt_graphics_get_image_height
gt_graphics_get_image_width
gt_graphics_get_text_height
gt_graphics_get_text_width
gt_graphics_get_xmargins
gt_graphics_get_ymargins
gt_graphics_save_to_file
gt_graphics_save_to_stream
gt_graphics_set_background_color
gt_graphics_set_font
gt_graphics_set_margins
gt_grep
gt_grep_nt
gt_gtf_in_stream_new
gt_gtf_out_stream_new
gt_hashmap_add
gt_hashmap_delete
gt_hashmap_foreach
gt_hashmap_foreach_in_key_order
gt_hashmap_foreach_ordered
gt_hashmap_get
gt_hashmap_new
gt_hashmap_ref
gt_hashmap_remove
gt_hashmap_reset
gt_id_to_md5_stream_new
gt_image_info_delete
gt_image_info_get_height
gt_image_info_get_rec_map
gt_image_info_new
gt_image_info_num_of_rec_maps
gt_inter_feature_stream_new
gt_interval_tree_delete
gt_interval_tree_find_all_overlapping
gt_interval_tree_find_first_overlapping
gt_interval_tree_insert
gt_interval_tree_iterate_overlapping
gt_interval_tree_new
gt_interval_tree_node_get_data
gt_interval_tree_node_new
gt_interval_tree_remove
gt_interval_tree_size
gt_interval_tree_traverse
gt_is_little_endian
gt_jobs
gt_layout_delete
gt_layout_get_height
gt_layout_new
gt_layout_new_with_twc
gt_layout_set_track_ordering_func
gt_layout_sketch
gt_lib_clean
gt_lib_init
gt_lib_reg_atexit_func
gt_log_enable
gt_log_enabled
gt_log_fp
gt_log_log
gt_log_set_fp
gt_log_vlog
gt_logger_delete
gt_logger_disable
gt_logger_enable
gt_logger_enabled
gt_logger_log
gt_logger_log_force
gt_logger_log_va
gt_logger_log_va_force
gt_logger_new
gt_logger_set_target
gt_logger_target
gt_malloc
gt_match_blast_get_align_length
gt_match_blast_get_bitscore
gt_match_blast_get_evalue
gt_match_blast_get_similarity
gt_match_blast_new
gt_match_blast_set_align_length
gt_match_blast_set_bitscore
gt_match_blast_set_evalue
gt_match_blast_set_similarity
gt_match_delete
gt_match_get_direction
gt_match_get_range_seq1
gt_match_get_range_seq2
gt_match_get_seqid1
gt_match_get_seqid2
gt_match_iterator_delete
gt_match_iterator_next
gt_match_last_get_score
gt_match_last_get_seqno1
gt_match_last_get_seqno2
gt_match_last_new
gt_match_open_get_weight
gt_match_open_new
gt_match_open_set_weight
gt_match_set_range_seq1
gt_match_set_range_seq2
gt_match_set_seqid1
gt_match_set_seqid1_nt
gt_match_set_seqid2
gt_match_set_seqid2_nt
gt_match_sw_get_alignment_length
gt_match_sw_get_edist
gt_match_sw_get_seqno1
gt_match_sw_get_seqno2
gt_match_sw_new
gt_match_visitor_delete
gt_match_visitor_visit_match_blast
gt_match_visitor_visit_match_open
gt_md5_encoder_add_block
gt_md5_encoder_delete
gt_md5_encoder_finish
gt_md5_encoder_new
gt_md5_encoder_reset
gt_md5_fingerprint
gt_md5_to_id_stream_new
gt_merge_feature_stream_new
gt_merge_stream_new
gt_meta_node_cast
gt_meta_node_get_data
gt_meta_node_get_directive
gt_meta_node_new
gt_meta_node_try_cast
gt_msort
gt_msort_r
gt_multithread
gt_mutex_delete
gt_mutex_lock
gt_mutex_new
gt_mutex_unlock
gt_node_stream_cast
gt_node_stream_class_new
gt_node_stream_create
gt_node_stream_delete
gt_node_stream_is_sorted
gt_node_stream_next
gt_node_stream_pull
gt_node_stream_ref
gt_node_visitor_delete
gt_node_visitor_visit_comment_node
gt_node_visitor_visit_feature_node
gt_node_visitor_visit_meta_node
gt_node_visitor_visit_region_node
gt_node_visitor_visit_sequence_node
gt_option_argument_is_optional
gt_option_delete
gt_option_exclude
gt_option_get_name
gt_option_hide_default
gt_option_imply
gt_option_imply_either_2
gt_option_imply_either_3
gt_option_is_development_option
gt_option_is_extended_option
gt_option_is_mandatory
gt_option_is_mandatory_either
gt_option_is_mandatory_either_3
gt_option_is_mandatory_either_4
gt_option_is_set
gt_option_new_bool
gt_option_new_choice
gt_option_new_debug
gt_option_new_double
gt_option_new_double_min
gt_option_new_double_min_max
gt_option_new_filename
gt_option_new_filename_array
gt_option_new_int
gt_option_new_int_max
gt_option_new_int_min
gt_option_new_int_min_max
gt_option_new_long
gt_option_new_probability
gt_option_new_range
gt_option_new_range_min_max
gt_option_new_string
gt_option_new_string_array
gt_option_new_uint
gt_option_new_uint_max
gt_option_new_uint_min
gt_option_new_uint_min_max
gt_option_new_ulong
gt_option_new_ulong_min
gt_option_new_ulong_min_max
gt_option_new_uword
gt_option_new_uword_min
gt_option_new_uword_min_max
gt_option_new_verbose
gt_option_new_width
gt_option_new_word
gt_option_parse_spacespec
gt_option_parser_add_option
gt_option_parser_delete
gt_option_parser_get_option
gt_option_parser_new
gt_option_parser_parse
gt_option_parser_refer_to_manual
gt_option_parser_register_hook
gt_option_parser_reset
gt_option_parser_set_comment_func
gt_option_parser_set_mail_address
gt_option_parser_set_max_args
gt_option_parser_set_min_args
gt_option_parser_set_min_max_args
gt_option_parser_set_version_func
gt_option_ref
gt_orf_iterator_delete
gt_orf_iterator_new
gt_orf_iterator_next
gt_output_file_info_delete
gt_output_file_info_new
gt_output_file_info_register_options
gt_parse_double
gt_parse_int
gt_parse_range
gt_parse_range_tidy
gt_parse_uint
gt_parse_uword
gt_parse_word
gt_phase_get
gt_qsort_r
gt_queue_add
gt_queue_delete
gt_queue_get
gt_queue_head
gt_queue_new
gt_queue_remove
gt_queue_size
gt_range_compare
gt_range_compare_with_delta
gt_range_contains
gt_range_join
gt_range_length
gt_range_offset
gt_range_overlap
gt_range_overlap_delta
gt_range_within
gt_rdb_mysql_new
gt_rdb_sqlite_new
gt_rdb_visitor_delete
gt_rdb_visitor_visit_mysql
gt_rdb_visitor_visit_sqlite
gt_readmode_inverse_dir
gt_readmode_parse
gt_readmode_show
gt_realloc
gt_rec_map_delete
gt_rec_map_get_genome_feature
gt_rec_map_get_northwest_x
gt_rec_map_get_northwest_y
gt_rec_map_get_southeast_x
gt_rec_map_get_southeast_y
gt_rec_map_has_omitted_children
gt_rec_map_new
gt_rec_map_ref
gt_region_mapping_delete
gt_region_mapping_get_description
gt_region_mapping_get_md5_fingerprint
gt_region_mapping_get_sequence
gt_region_mapping_get_sequence_length
gt_region_mapping_new_encseq
gt_region_mapping_new_mapping
gt_region_mapping_new_rawseq
gt_region_mapping_new_seqfiles
gt_region_mapping_ref
gt_region_node_cast
gt_region_node_new
gt_region_node_try_cast
gt_reverse_complement
gt_rwlock_delete
gt_rwlock_new
gt_rwlock_rdlock
gt_rwlock_unlock
gt_rwlock_wrlock
gt_script_wrapper_stream_new
gt_script_wrapper_visitor_new
gt_select_stream_new
gt_select_stream_set_drophandler
gt_seq_iterator_delete
gt_seq_iterator_fastq_get_file_index
gt_seq_iterator_fastq_new
gt_seq_iterator_fastq_new_colorspace
gt_seq_iterator_fastq_relax_check_of_quality_description
gt_seq_iterator_getcurrentcounter
gt_seq_iterator_has_qualities
gt_seq_iterator_next
gt_seq_iterator_sequence_buffer_new
gt_seq_iterator_set_quality_buffer
gt_seq_iterator_set_sequence_output
gt_seq_iterator_set_symbolmap
gt_sequence_node_cast
gt_sequence_node_get_description
gt_sequence_node_get_sequence
gt_sequence_node_get_sequence_length
gt_sequence_node_new
gt_sequence_node_try_cast
gt_set_source_visitor_new
gt_sort_stream_new
gt_splitter_delete
gt_splitter_get_token
gt_splitter_get_tokens
gt_splitter_new
gt_splitter_reset
gt_splitter_size
gt_splitter_split
gt_splitter_split_non_empty
gt_stat_stream_new
gt_stat_stream_show_stats
gt_str_append_char
gt_str_append_cstr
gt_str_append_cstr_nt
gt_str_append_double
gt_str_append_int
gt_str_append_sci_double
gt_str_append_str
gt_str_append_uint
gt_str_append_uword
gt_str_array_add
gt_str_array_add_cstr
gt_str_array_add_cstr_nt
gt_str_array_delete
gt_str_array_get
gt_str_array_new
gt_str_array_ref
gt_str_array_reset
gt_str_array_set
gt_str_array_set_cstr
gt_str_array_set_size
gt_str_array_size
gt_str_clone
gt_str_cmp
gt_str_delete
gt_str_get
gt_str_length
gt_str_new
gt_str_new_cstr
gt_str_ref
gt_str_reset
gt_str_set
gt_str_set_length
gt_strand_get
gt_strcmp
gt_style_clone
gt_style_delete
gt_style_get_bool
gt_style_get_bool_with_track
gt_style_get_color
gt_style_get_color_with_track
gt_style_get_num
gt_style_get_num_with_track
gt_style_get_str
gt_style_get_str_with_track
gt_style_is_unsafe
gt_style_load_file
gt_style_load_str
gt_style_new
gt_style_ref
gt_style_reload
gt_style_safe_mode
gt_style_set_bool
gt_style_set_color
gt_style_set_num
gt_style_set_str
gt_style_to_str
gt_style_unsafe_mode
gt_style_unset
gt_symbol
gt_tag_value_map_add
gt_tag_value_map_delete
gt_tag_value_map_example
gt_tag_value_map_foreach
gt_tag_value_map_get
gt_tag_value_map_new
gt_tag_value_map_remove
gt_tag_value_map_set
gt_tag_value_map_size
gt_text_width_calculator_cairo_new
gt_text_width_calculator_delete
gt_text_width_calculator_get_text_width
gt_text_width_calculator_ref
gt_thread_delete
gt_thread_join
gt_thread_new
gt_timer_delete
gt_timer_get_formatted
gt_timer_new
gt_timer_new_with_progress_description
gt_timer_omit_last_stage
gt_timer_show
gt_timer_show_cpu_time_by_progress
gt_timer_show_formatted
gt_timer_show_progress
gt_timer_show_progress_final
gt_timer_show_progress_formatted
gt_timer_show_progress_va
gt_timer_start
gt_timer_stop
gt_tool_delete
gt_tool_new
gt_tool_run
gt_toolbox_add_hidden_tool
gt_toolbox_add_tool
gt_toolbox_delete
gt_toolbox_get_tool
gt_toolbox_new
gt_toolbox_show
gt_trans_table_delete
gt_trans_table_description
gt_trans_table_get_scheme_descriptions
gt_trans_table_new
gt_trans_table_new_standard
gt_trans_table_translate_codon
gt_translator_delete
gt_translator_find_codon
gt_translator_find_startcodon
gt_translator_find_stopcodon
gt_translator_new
gt_translator_new_with_table
gt_translator_next
gt_translator_set_codon_iterator
gt_translator_set_translation_table
gt_type_checker_delete
gt_type_checker_description
gt_type_checker_is_a
gt_type_checker_is_partof
gt_type_checker_is_valid
gt_type_checker_obo_new
gt_type_checker_ref
gt_uniq_stream_new
gt_version
gt_version_check
gt_visitor_stream_new
gt_warning
gt_warning_default_handler
gt_warning_disable
gt_warning_get_data
gt_warning_get_handler
gt_warning_set_handler
gt_xatexit
gt_xfclose
gt_xfflush
gt_xfgetc
gt_xfgetpos
gt_xfgets
gt_xfopen
gt_xfputc
gt_xfputs
gt_xfread
gt_xfread_one
gt_xfseek
gt_xfsetpos
gt_xfwrite
gt_xfwrite_one
gt_xputchar
gt_xputs
gt_xremove
gt_xrf_checker_delete
gt_xrf_checker_is_valid
gt_xrf_checker_new
gt_xrf_checker_ref
gt_xungetc
gt_xvfprintf
gt_xvsnprintf