143 lines
4.1 KiB
C
143 lines
4.1 KiB
C
#ifndef _TEX_PARSER_H
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#define _TEX_PARSER_H
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#include <sys/types.h>
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#include "zerror.h"
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#define TEX_PARSER_DOMAIN 0
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/**
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* enum tex_parser_error - the LaTeX parser error codes
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*
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* @TEX_PARSER_NOERROR: Default state indicates no error.
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* @TEX_PARSER_ERROR_UNKNOWN: Uncontrolled error happen
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* @TEX_PARSER_ERROR_STACK: Stack overflow
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* @TEX_PARSER_ERROR_PLACE_UNKNOWN: Unknown place (internal error)
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* @TEX_PARSER_ERROR_UNEXPECTED_SYMBOL: Unexpected symbol for current place
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*
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* Defines parser error codes, @TEX_PARSER_NOERROR = %0 is equivalent to no errors.
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*/
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enum tex_parser_error {
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TEX_PARSER_NOERROR = 0,
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TEX_PARSER_ERROR_UNKNOWN,
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TEX_PARSER_ERROR_STACK,
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TEX_PARSER_ERROR_PLACE_UNKNOWN,
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TEX_PARSER_ERROR_UNEXPECTED_SYMBOL,
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};
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/**
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* struct tex_table_row_s - LaTeX table row
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*
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* @over_line: Text over row (\hline for ex.)
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* @cells: Row cells
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* @under_line: Text under row (\cline{2-4} for ex.)
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*
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* @over_line, @cells, @under_line uses zalloc*() functions which stores
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* array dimensions.
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*/
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struct tex_table_row_s {
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char *over_line;
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char **cells;
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char *under_line;
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};
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/**
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* struct tex_table_s - LaTeX table
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*
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* @document_offset: Table offset (in symbols) in the LaTeX document
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* @document_size: Table size (in symbols) in the LaTeX document
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* @id: Id in report generator context (Request.Drossel1.Table1 for ex.)
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* @col_props: Column properties devided by '>' symbol
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* @head_table: Top rows devided by & and automaticaly added on page break
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* @foot_table: Bottom rows devided by & and automaticaly added on page break
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* @main_table: Central rows which can be devided horizontally and vertically
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*
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* @col_props, @head_table, @foot_table, @main_table uses zalloc*() functions to
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* determine array dimensions.
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*/
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struct tex_table_s {
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size_t document_offset;
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size_t document_size;
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char *id;
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char **col_props;
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struct tex_table_row_s *head_table;
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struct tex_table_row_s *foot_table;
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struct tex_table_row_s *main_table;
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};
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/**
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* struct tex_graphics - LaTeX graphics
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*
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* @prestr: Preceding string
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* @path: Path to image file
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* @poststr: Descendant string
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*
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* Need some description here...
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*/
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struct tex_graphics {
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char *prestr;
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char *path;
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char *poststr;
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};
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/**
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* enum tex_element_type - Type of LaTeX element
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*
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* @TEX_ELEM_TEXT: Text containing non-arable code
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* @TEX_ELEM_TABLE: LaTeX table or longtable
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* @TEX_ELEM_GRAPHICS: LaTeX graphics (images, plots)
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*
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* Need some description here...
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*/
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enum tex_elem_type {
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TEX_ELEM_TEXT,
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TEX_ELEM_TABLE,
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TEX_ELEM_GRAPHICS
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};
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/**
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* struct tex_elem_s - Element of LaTeX code
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*
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* @type: LaTeX element type
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* @data: Element data structure
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*
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* Need some description here...
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*/
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struct tex_elem_s {
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enum tex_elem_type type;
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union {
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char *text;
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struct tex_table_s *table;
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struct tex_graphics_s *graphics;
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} data;
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};
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/**
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* struct tex_struct_s - LaTeX code structure
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*
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* @elems: List of LaTeX elements
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*
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* Need some description here...
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*/
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struct tex_struct_s {
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struct tex_elem_s *elems;
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};
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/**
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* tex_parse() - Parse the LaTeX code
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*
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* @source: LaTeX code string
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* @len: Length of LaTeX string
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* @tex_struct: A return location for a #tex_struct_s
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* @error: A return location for a #zerror_s
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*
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* Parses LaTeX text string @source of length len to *@tex_struct.
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* If some error occurs, parser returns immediatly with error info in *@error.
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* @tex_struct or @error can't be %NULL; *@tex_struct *@error must be %NULL.
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*/
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void tex_parse(const char *source, size_t len, struct tex_struct_s **tex_struct, struct zerror_s **error);
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#endif
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