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-/*
- Copyright (c) 2008-2017 jerome DOT laurens AT u-bourgogne DOT fr
- 
- This file is part of the __SyncTeX__ package.
- 
- [//]: # (Latest Revision: Fri Jul 14 16:20:41 UTC 2017)
- [//]: # (Version: 1.21)
- 
- See `synctex_parser_readme.md` for more details
- 
- ## License
- 
- Permission is hereby granted, free of charge, to any person
- obtaining a copy of this software and associated documentation
- files (the "Software"), to deal in the Software without
- restriction, including without limitation the rights to use,
- copy, modify, merge, publish, distribute, sublicense, and/or sell
- copies of the Software, and to permit persons to whom the
- Software is furnished to do so, subject to the following
- conditions:
- 
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
- 
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- OTHER DEALINGS IN THE SOFTWARE
- 
- Except as contained in this notice, the name of the copyright holder
- shall not be used in advertising or otherwise to promote the sale,
- use or other dealings in this Software without prior written
- authorization from the copyright holder.
- 
- ## Acknowledgments:
- 
- The author received useful remarks from the __pdfTeX__ developers, especially Hahn The Thanh,
- and significant help from __XeTeX__ developer Jonathan Kew.
- 
- ## Nota Bene:
- 
- If you include or use a significant part of the __SyncTeX__ package into a software,
- I would appreciate to be listed as contributor and see "__SyncTeX__" highlighted.
-*/
-
-#ifndef __SYNCTEX_PARSER__
-# define __SYNCTEX_PARSER__
-
-#include "synctex_version.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
- 
- /* The main synctex object is a scanner.
- * Its implementation is considered private.
- * The basic workflow is
- * - create a "synctex scanner" with the contents of a file
- * - perform actions on that scanner like
- synctex_display_query or synctex_edit_query below.
- * - perform actions on nodes returned by the scanner
- * - free the scanner when the work is done
- */
- typedef struct synctex_scanner_t synctex_scanner_s;
- typedef synctex_scanner_s * synctex_scanner_p;
- 
- /**
- * This is the designated method to create
- * a new synctex scanner object.
- * - argument output: the pdf/dvi/xdv file associated
- * to the synctex file.
- * If necessary, it can be the tex file that
- * originated the synctex file but this might cause
- * problems if the \jobname has a custom value.
- * Despite this method can accept a relative path
- * in practice, you should only pass full paths.
- * The path should be encoded by the underlying
- * file system, assuming that it is based on
- * 8 bits characters, including UTF8,
- * not 16 bits nor 32 bits.
- * The last file extension is removed and
- * replaced by the proper extension,
- * either synctex or synctex.gz.
- * - argument build_directory: It is the directory where
- * all the auxiliary stuff is created.
- * If no synctex file is found in the same directory
- * as the output file, then we try to find one in
- * this build directory.
- * It is the directory where all the auxiliary
- * stuff is created. Sometimes, the synctex output
- * file and the pdf, dvi or xdv files are not 
- * created in the same location. See MikTeX.
- * This directory path can be NULL,
- * it will be ignored then.
- * It can be either absolute or relative to the
- * directory of the output pdf (dvi or xdv) file.
- * Please note that this new argument is provided
- * as a convenience but should not be used.
- * Available since version 1.5.
- * - argument parse: In general, use 1.
- * Use 0 only if you do not want to parse the
- * content but just check for existence.
- * Available since version 1.5
- * - resturn: a scanner. NULL is returned in case
- * of an error or non existent file.
- */
- synctex_scanner_p synctex_scanner_new_with_output_file(const char * output, const char * build_directory, int parse);
- 
- /**
- * Designated method to delete a synctex scanner object,
- * including all its internal resources.
- * Frees all the memory, you must call it when you are finished with the scanner.
- * - argument scanner: a scanner.
- * - returns: an integer used for testing purposes.
- */
- int synctex_scanner_free(synctex_scanner_p scanner);
- 
- /**
- * Send this message to force the scanner to
- * parse the contents of the synctex output file.
- * Nothing is performed if the file was already parsed.
- * In each query below, this message is sent,
- * but if you need to access information more directly,
- * you must ensure that the parsing did occur.
- * Usage:
- * if((my_scanner = synctex_scanner_parse(my_scanner))) {
- * continue with my_scanner...
- * } else {
- * there was a problem
- * }
- * - returns: the argument on success.
- * On failure, frees scanner and returns NULL.
- */
- synctex_scanner_p synctex_scanner_parse(synctex_scanner_p scanner);
- 
- /* synctex_node_p is the type for all synctex nodes.
- * Its implementation is considered private.
- * The synctex file is parsed into a tree of nodes, either sheet, form, boxes, math nodes... */
- 
- typedef struct synctex_node_t synctex_node_s;
- typedef synctex_node_s * synctex_node_p;
- 
- /* The main entry points.
- * Given the file name, a line and a column number, synctex_display_query returns the number of nodes
- * satisfying the contrain. Use code like
- *
- * if(synctex_display_query(scanner,name,line,column,page_hint)>0) {
- * synctex_node_p node;
- * while((node = synctex_scanner_next_result(scanner))) {
- * // do something with node
- * ...
- * }
- * }
- *
- * Please notice that since version 1.19,
- * there is a new argument page_hint.
- * The results in pages closer to page_hint are given first.
- * For example, one can
- * - highlight each resulting node in the output, using synctex_node_visible_h and synctex_node_visible_v
- * - highlight all the rectangles enclosing those nodes, using synctex_node_box_visible_... functions
- * - highlight just the character using that information
- *
- * Given the page and the position in the page, synctex_edit_query returns the number of nodes
- * satisfying the contrain. Use code like
- *
- * if(synctex_edit_query(scanner,page,h,v)>0) {
- * synctex_node_p node;
- * while(node = synctex_scanner_next_result(scanner)) {
- * // do something with node
- * ...
- * }
- * }
- *
- * For example, one can
- * - highlight each resulting line in the input,
- * - highlight just the character using that information
- *
- * page is 1 based
- * h and v are coordinates in 72 dpi unit, relative to the top left corner of the page.
- * If you make a new query, the result of the previous one is discarded. If you need to make more than one query
- * in parallel, use the iterator API exposed in
- * the synctex_parser_private.h header.
- * If one of this function returns a negative integer,
- * it means that an error occurred.
- *
- * Both methods are conservative, in the sense that matching is weak.
- * If the exact column number is not found, there will be an answer with the whole line.
- *
- * Sumatra-PDF, Skim, iTeXMac2, TeXShop and Texworks are examples of open source software that use this library.
- * You can browse their code for a concrete implementation.
- */
- typedef long synctex_status_t;
- /* The page_hint argument is used to resolve ambiguities.
- * Whenever, different matches occur, the ones closest
- * to the page will be given first. Pass a negative number
- * when in doubt. Using pdf forms may lead to ambiguities.
- */
- synctex_status_t synctex_display_query(synctex_scanner_p scanner,const char * name,int line,int column, int page_hint);
- synctex_status_t synctex_edit_query(synctex_scanner_p scanner,int page,float h,float v);
- synctex_node_p synctex_scanner_next_result(synctex_scanner_p scanner);
- synctex_status_t synctex_scanner_reset_result(synctex_scanner_p scanner);
- 
- /**
- * The horizontal and vertical location,
- * the width, height and depth of a box enclosing node.
- * All dimensions are given in page coordinates
- * as opposite to TeX coordinates.
- * The origin is at the top left corner of the page.
- * Code example for Qt5:
- * (from TeXworks source TWSynchronize.cpp)
- * QRectF nodeRect(synctex_node_box_visible_h(node),
- * synctex_node_box_visible_v(node) - 
- * synctex_node_box_visible_height(node),
- * synctex_node_box_visible_width(node),
- * synctex_node_box_visible_height(node) + 
- * synctex_node_box_visible_depth(node));
- * Code example for Cocoa:
- * NSRect bounds = [pdfPage
- * boundsForBox:kPDFDisplayBoxMediaBox];
- * NSRect nodeRect = NSMakeRect(
- * synctex_node_box_visible_h(node),
- * NSMaxY(bounds)-synctex_node_box_visible_v(node) +
- * synctex_node_box_visible_height(node),
- * synctex_node_box_visible_width(node),
- * synctex_node_box_visible_height(node) +
- * synctex_node_box_visible_depth(node)
- * );
- * The visible dimensions are bigger than real ones
- * to compensate 0 width boxes or nodes intentionnaly
- * put outside the box (using \kern for example).
- * - parameter node: a node.
- * - returns: a float.
- * - author: JL
- */
- float synctex_node_box_visible_h(synctex_node_p node);
- float synctex_node_box_visible_v(synctex_node_p node);
- float synctex_node_box_visible_width(synctex_node_p node);
- float synctex_node_box_visible_height(synctex_node_p node);
- float synctex_node_box_visible_depth(synctex_node_p node);
-
- /**
- * For quite all nodes, horizontal and vertical coordinates, and width.
- * All dimensions are given in page coordinates
- * as opposite to TeX coordinates.
- * The origin is at the top left corner of the page.
- * The visible dimensions are bigger than real ones
- * to compensate 0 width boxes or nodes intentionnaly
- * put outside the box (using \kern for example).
- * All nodes have coordinates, but all nodes don't
- * have non null size. For example, math nodes
- * have no width according to TeX, and in that case
- * synctex_node_visible_width simply returns 0.
- * The same holds for kern nodes that do not have
- * height nor depth, etc...
- */
- float synctex_node_visible_h(synctex_node_p node);
- float synctex_node_visible_v(synctex_node_p node);
- float synctex_node_visible_width(synctex_node_p node);
- float synctex_node_visible_height(synctex_node_p node);
- float synctex_node_visible_depth(synctex_node_p node);
-
- /**
- * Given a node, access to its tag, line and column.
- * The line and column numbers are 1 based.
- * The latter is not yet fully supported in TeX,
- * the default implementation returns 0
- * which means the whole line.
- * synctex_node_get_name returns the path of the
- * TeX source file that was used to create the node.
- * When the tag is known, the scanner of the node
- * will also give that same file name, see
- * synctex_scanner_get_name below.
- * For an hbox node, the mean line is the mean
- * of all the lines of the child nodes.
- * Sometimes, when synchronization form pdf to source
- * fails with the line, one should try with the
- * mean line.
- */
- int synctex_node_tag(synctex_node_p node);
- int synctex_node_line(synctex_node_p node);
- int synctex_node_mean_line(synctex_node_p node);
- int synctex_node_column(synctex_node_p node);
- const char * synctex_node_get_name(synctex_node_p node);
- 
- /**
- This is the page where the node appears.
- * This is a 1 based index as given by TeX.
- */
- int synctex_node_page(synctex_node_p node);
-
- /**
- * Display all the information contained in the scanner.
- * If the records are too numerous, only the first ones are displayed.
- * This is mainly for informational purpose to help developers.
- */
- void synctex_scanner_display(synctex_scanner_p scanner);
- 
- /* Managing the input file names.
- * Given a tag, synctex_scanner_get_name will return the corresponding file name.
- * Conversely, given a file name, synctex_scanner_get_tag will return, the corresponding tag.
- * The file name must be the very same as understood by TeX.
- * For example, if you \input myDir/foo.tex, the file name is myDir/foo.tex.
- * No automatic path expansion is performed.
- * Finally, synctex_scanner_input is the first input node of the scanner.
- * To browse all the input node, use a loop like
- * ...
- * synctex_node_p = input_node;
- * ...
- * if((input_node = synctex_scanner_input(scanner))) {
- * do {
- * blah
- * } while((input_node=synctex_node_sibling(input_node)));
- * }
- *
- * The output is the name that was used to create the scanner.
- * The synctex is the real name of the synctex file,
- * it was obtained from output by setting the proper file extension.
- */
- const char * synctex_scanner_get_name(synctex_scanner_p scanner,int tag);
- 
- int synctex_scanner_get_tag(synctex_scanner_p scanner,const char * name);
- 
- synctex_node_p synctex_scanner_input(synctex_scanner_p scanner);
- synctex_node_p synctex_scanner_input_with_tag(synctex_scanner_p scanner,int tag);
- const char * synctex_scanner_get_output(synctex_scanner_p scanner);
- const char * synctex_scanner_get_synctex(synctex_scanner_p scanner);
- 
- /* The x and y offset of the origin in TeX coordinates. The magnification
- These are used by pdf viewers that want to display the real box size.
- For example, getting the horizontal coordinates of a node would require
- synctex_node_box_h(node)*synctex_scanner_magnification(scanner)+synctex_scanner_x_offset(scanner)
- Getting its TeX width would simply require
- synctex_node_box_width(node)*synctex_scanner_magnification(scanner)
- but direct methods are available for that below.
- */
- int synctex_scanner_x_offset(synctex_scanner_p scanner);
- int synctex_scanner_y_offset(synctex_scanner_p scanner);
- float synctex_scanner_magnification(synctex_scanner_p scanner);
- 
- /**
- * ## Browsing the nodes
- * parent, child and sibling are standard names for tree nodes.
- * The parent is one level higher,
- * the child is one level deeper,
- * and the sibling is at the same level.
- * A node and its sibling have the same parent.
- * A node is the parent of its children.
- * A node is either the child of its parent,
- * or belongs to the sibling chain of its parent's child.
- * The sheet or form of a node is the topmost ancestor,
- * it is of type sheet or form.
- * The next node is either the child, the sibling or the parent's sibling,
- * unless the parent is a sheet, a form or NULL.
- * This allows to navigate through all the nodes of a given sheet node:
- *
- * synctex_node_p node = sheet;
- * while((node = synctex_node_next(node))) {
- * // do something with node
- * }
- *
- * With synctex_sheet_content and synctex_form_content,
- * you can retrieve the sheet node given the page
- * or form tag.
- * The page is 1 based, according to TeX standards.
- * Conversely synctex_node_parent_sheet or
- * synctex_node_parent_form allows to retrieve
- * the sheet or the form containing a given node.
- * Notice that a node is not contained in a sheet
- * and a form at the same time.
- * Some nodes are not contained in either (handles).
- */
- 
- synctex_node_p synctex_node_parent(synctex_node_p node);
- synctex_node_p synctex_node_parent_sheet(synctex_node_p node);
- synctex_node_p synctex_node_parent_form(synctex_node_p node);
- synctex_node_p synctex_node_child(synctex_node_p node);
- synctex_node_p synctex_node_last_child(synctex_node_p node);
- synctex_node_p synctex_node_sibling(synctex_node_p node);
- synctex_node_p synctex_node_last_sibling(synctex_node_p node);
- synctex_node_p synctex_node_arg_sibling(synctex_node_p node);
- synctex_node_p synctex_node_next(synctex_node_p node);
- 
- /**
- * Top level entry points.
- * The scanner owns a list of sheet siblings and
- * a list of form siblings.
- * Sheets or forms have one child which is a box:
- * theie contents.
- * - argument page: 1 based sheet page number.
- * - argument tag: 1 based form tag number.
- */
- synctex_node_p synctex_sheet(synctex_scanner_p scanner,int page);
- synctex_node_p synctex_sheet_content(synctex_scanner_p scanner,int page);
- synctex_node_p synctex_form(synctex_scanner_p scanner,int tag);
- synctex_node_p synctex_form_content(synctex_scanner_p scanner,int tag);
- 
- /* This is primarily used for debugging purpose.
- * The second one logs information for the node and recursively displays information for its next node */
- void synctex_node_log(synctex_node_p node);
- void synctex_node_display(synctex_node_p node);
- 
- /* For quite all nodes, horizontal, vertical coordinates, and width.
- * These are expressed in TeX small points coordinates, with origin at the top left corner.
- */
- int synctex_node_h(synctex_node_p node);
- int synctex_node_v(synctex_node_p node);
- int synctex_node_width(synctex_node_p node);
- int synctex_node_height(synctex_node_p node);
- int synctex_node_depth(synctex_node_p node);
- 
- /* For all nodes, dimensions of the enclosing box.
- * These are expressed in TeX small points coordinates, with origin at the top left corner.
- * A box is enclosing itself.
- */
- int synctex_node_box_h(synctex_node_p node);
- int synctex_node_box_v(synctex_node_p node);
- int synctex_node_box_width(synctex_node_p node);
- int synctex_node_box_height(synctex_node_p node);
- int synctex_node_box_depth(synctex_node_p node);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif