octave: libinterp/corefcn/oct-tex-parser.yy annotate

annotate libinterp/corefcn/oct-tex-parser.yy @ 30564:796f54d4ddbf stable

update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021. In all .txi and .texi files except gpl.txi and gpl.texi in the doc/liboctave and doc/interpreter directories, change the copyright to "Octave Project Developers", the same as used for other source files. Update copyright notices for 2022 (not done since 2019). For gpl.txi and gpl.texi, change the copyright notice to be "Free Software Foundation, Inc." and leave the date at 2007 only because this file only contains the text of the GPL, not anything created by the Octave Project Developers. Add Paul Thomas to contributors.in.

author	John W. Eaton <jwe@octave.org>
date	Tue, 28 Dec 2021 18:22:40 -0500
parents	fa65184b7c76
children	e88a07dec498

rev	line source
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	1 ////////////////////////////////////////////////////////////////////////
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	2 //
30564 796f54d4ddbf update Octave Project Developers copyright for the new year John W. Eaton <jwe@octave.org> parents: 30123 diff changeset	3 // Copyright (C) 2013-2022 The Octave Project Developers
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	4 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	5 // See the file COPYRIGHT.md in the top-level directory of this
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	6 // distribution or <https://octave.org/copyright/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	7 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	8 // This file is part of Octave.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	9 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	10 // Octave is free software: you can redistribute it and/or modify it
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	11 // under the terms of the GNU General Public License as published by
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	12 // the Free Software Foundation, either version 3 of the License, or
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	13 // (at your option) any later version.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	14 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	15 // Octave is distributed in the hope that it will be useful, but
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	16 // WITHOUT ANY WARRANTY; without even the implied warranty of
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	18 // GNU General Public License for more details.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	19 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	20 // You should have received a copy of the GNU General Public License
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	21 // along with Octave; see the file COPYING. If not, see
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	22 // <https://www.gnu.org/licenses/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	23 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	24 ////////////////////////////////////////////////////////////////////////
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	25
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	26 %{
20541 e3c0fee87493 style fixes for tex lexer and parser John W. Eaton <jwe@octave.org> parents: 19775 diff changeset	27
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	28 #define YYDEBUG 1
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	29
21724 aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	30 #if defined (HAVE_CONFIG_H)
22003 2d3972b802ff use consistent style for including config.h in source files John W. Eaton <jwe@octave.org> parents: 21995 diff changeset	31 # include "config.h"
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	32 #endif
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	33
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	34 #include "text-engine.h"
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	35
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	36 // oct-tex-parser.h must be included after text-engine.h
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	37 #include "oct-tex-parser.h"
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	38
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	39 extern int octave_tex_lex (YYSTYPE , void );
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	40 static void yyerror (octave::text_parser_tex& parser, const char *s);
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	41
30123 fa65184b7c76 maint: use "m_" prefix for member variables in text-engine classes. Rik <rik@octave.org> parents: 29358 diff changeset	42 #define m_scanner parser.get_scanner ()
21995 66f3c4e81721 Rename bison/flex internal symbol names to silence "one definition rule" warning Robert Jenssen <robertjenssen@ozemail.com.au> parents: 21942 diff changeset	43 #define yyalloc octave_tex_yyalloc
20541 e3c0fee87493 style fixes for tex lexer and parser John W. Eaton <jwe@octave.org> parents: 19775 diff changeset	44
21023 ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20541 diff changeset	45 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC)
24444 53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 23795 diff changeset	46 // Disable this warning for code that is generated by Bison,
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 23795 diff changeset	47 // including grammar rules. Push the current state so we can
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 23795 diff changeset	48 // restore the warning state prior to functions we define at
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 23795 diff changeset	49 // the bottom of the file.
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 23795 diff changeset	50 # pragma GCC diagnostic push
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 23795 diff changeset	51 # pragma GCC diagnostic ignored "-Wold-style-cast"
21023 ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20541 diff changeset	52 #endif
ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20541 diff changeset	53
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	54 %}
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	55
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	56 %define api.pure
25640 7aaf091d39fc one more fix for parser change... Doh! John W. Eaton <jwe@octave.org> parents: 25637 diff changeset	57 // No spaces inside the braces for the prefix definition!
7aaf091d39fc one more fix for parser change... Doh! John W. Eaton <jwe@octave.org> parents: 25637 diff changeset	58 %define api.prefix {octave_tex_}
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	59 %parse-param { octave::text_parser_tex& parser }
30123 fa65184b7c76 maint: use "m_" prefix for member variables in text-engine classes. Rik <rik@octave.org> parents: 29358 diff changeset	60 %lex-param { void *m_scanner }
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	61
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	62 %code requires {#include <string>}
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	63
20541 e3c0fee87493 style fixes for tex lexer and parser John W. Eaton <jwe@octave.org> parents: 19775 diff changeset	64 %union
e3c0fee87493 style fixes for tex lexer and parser John W. Eaton <jwe@octave.org> parents: 19775 diff changeset	65 {
e3c0fee87493 style fixes for tex lexer and parser John W. Eaton <jwe@octave.org> parents: 19775 diff changeset	66 // Leaf symbols produced by the scanner.
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	67 char ch;
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	68 double num;
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	69 int sym;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	70
20541 e3c0fee87493 style fixes for tex lexer and parser John W. Eaton <jwe@octave.org> parents: 19775 diff changeset	71 // Used for string buffering.
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	72 std::string *str;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	73
20541 e3c0fee87493 style fixes for tex lexer and parser John W. Eaton <jwe@octave.org> parents: 19775 diff changeset	74 // Objects produced by the parser.
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	75 octave::text_element *e_base;
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	76 octave::text_element_list *e_list;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	77 }
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	78
17327 fe6518a1d87c Move TeX symbol decoding into the lexer (bug #39831). Michael Goffioul <michael.goffioul@gmail.com> parents: 17276 diff changeset	79 %token BF IT SL RM
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	80 %token FONTNAME FONTSIZE
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	81 %token COLOR COLOR_RGB
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	82 %token START END SUPER SUB
17327 fe6518a1d87c Move TeX symbol decoding into the lexer (bug #39831). Michael Goffioul <michael.goffioul@gmail.com> parents: 17276 diff changeset	83 %token<ch> CH
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	84 %token<num> NUM
17327 fe6518a1d87c Move TeX symbol decoding into the lexer (bug #39831). Michael Goffioul <michael.goffioul@gmail.com> parents: 17276 diff changeset	85 %token<sym> SYM
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	86
17327 fe6518a1d87c Move TeX symbol decoding into the lexer (bug #39831). Michael Goffioul <michael.goffioul@gmail.com> parents: 17276 diff changeset	87 %type<str> simple_string
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	88 %type<e_base> string_element symbol_element
17274 0a09d4b40767 Combine successive TeX super- and subscript elements. Michael Goffioul <michael.goffioul@gmail.com> parents: 17272 diff changeset	89 %type<e_base> superscript_element subscript_element combined_script_element
20541 e3c0fee87493 style fixes for tex lexer and parser John W. Eaton <jwe@octave.org> parents: 19775 diff changeset	90 %type<e_base> font_modifier_element fontname_element fontsize_element
e3c0fee87493 style fixes for tex lexer and parser John W. Eaton <jwe@octave.org> parents: 19775 diff changeset	91 %type<e_base> color_element
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	92 %type<e_list> string_element_list scoped_string_element_list
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	93
20541 e3c0fee87493 style fixes for tex lexer and parser John W. Eaton <jwe@octave.org> parents: 19775 diff changeset	94 // Make sure there's no memory leak on parse error.
17327 fe6518a1d87c Move TeX symbol decoding into the lexer (bug #39831). Michael Goffioul <michael.goffioul@gmail.com> parents: 17276 diff changeset	95 %destructor { } <ch> <num> <sym>
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	96 %destructor { delete $$; } <*>
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	97
17274 0a09d4b40767 Combine successive TeX super- and subscript elements. Michael Goffioul <michael.goffioul@gmail.com> parents: 17272 diff changeset	98 %nonassoc SCRIPT
0a09d4b40767 Combine successive TeX super- and subscript elements. Michael Goffioul <michael.goffioul@gmail.com> parents: 17272 diff changeset	99 %nonassoc SUB SUPER
0a09d4b40767 Combine successive TeX super- and subscript elements. Michael Goffioul <michael.goffioul@gmail.com> parents: 17272 diff changeset	100
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	101 %nonassoc STR
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	102 %nonassoc CH
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	103
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	104 %start string
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	105
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	106 %%
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	107
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	108 simple_string : CH
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	109 { $$ = new std::string (1, $1); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	110 \| simple_string CH
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	111 { $1->append (1, $2); $$ = $1; }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	112 ;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	113
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	114 symbol_element : SYM
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	115 { $$ = new octave::text_element_symbol ($1); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	116 ;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	117
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	118 font_modifier_element : BF
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	119 { $$ = new octave::text_element_fontstyle (octave::text_element_fontstyle::bold); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	120 \| IT
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	121 { $$ = new octave::text_element_fontstyle (octave::text_element_fontstyle::italic); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	122 \| SL
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	123 { $$ = new octave::text_element_fontstyle (octave::text_element_fontstyle::oblique); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	124 \| RM
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	125 { $$ = new octave::text_element_fontstyle (octave::text_element_fontstyle::normal); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	126 ;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	127
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	128 fontsize_element : FONTSIZE START NUM END
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	129 { $$ = new octave::text_element_fontsize ($3); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	130 ;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	131
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	132 fontname_element : FONTNAME START simple_string END
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	133 {
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	134 $$ = new octave::text_element_fontname (*$3);
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	135 delete $3;
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	136 }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	137 ;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	138
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	139 color_element : COLOR START simple_string END
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	140 {
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	141 $$ = new octave::text_element_color (*$3);
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	142 delete $3;
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	143 }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	144 \| COLOR_RGB START NUM NUM NUM END
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	145 {
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	146 $$ = new octave::text_element_color ($3, $4, $5);
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	147 }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	148 ;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	149
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	150 string_element : simple_string %prec STR
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	151 {
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	152 $$ = new octave::text_element_string (*$1);
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	153 delete $1;
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	154 }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	155 \| scoped_string_element_list
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	156 { $$ = $1; }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	157 \| symbol_element
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	158 \| font_modifier_element
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	159 \| fontsize_element
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	160 \| fontname_element
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	161 \| color_element
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	162 \| superscript_element %prec SCRIPT
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	163 \| subscript_element %prec SCRIPT
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	164 \| combined_script_element
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	165 ;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	166
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	167 superscript_element : SUPER CH
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	168 { $$ = new octave::text_element_superscript ($2); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	169 \| SUPER scoped_string_element_list
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	170 { $$ = new octave::text_element_superscript ($2); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	171 \| SUPER symbol_element
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	172 { $$ = new octave::text_element_superscript ($2); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	173 ;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	174
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	175 subscript_element : SUB CH
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	176 { $$ = new octave::text_element_subscript ($2); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	177 \| SUB scoped_string_element_list
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	178 { $$ = new octave::text_element_subscript ($2); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	179 \| SUB symbol_element
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	180 { $$ = new octave::text_element_subscript ($2); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	181 ;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	182
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	183 combined_script_element : subscript_element superscript_element
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	184 { $$ = new octave::text_element_combined ($1, $2); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	185 \| superscript_element subscript_element
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	186 { $$ = new octave::text_element_combined ($1, $2); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	187 ;
17274 0a09d4b40767 Combine successive TeX super- and subscript elements. Michael Goffioul <michael.goffioul@gmail.com> parents: 17272 diff changeset	188
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	189 string_element_list : string_element
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	190 { $$ = new octave::text_element_list ($1); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	191 \| string_element_list string_element
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	192 { $1->push_back ($2); $$ = $1; }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	193 ;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	194
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	195 scoped_string_element_list
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	196 : START string_element_list END
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	197 { $$ = $2; }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	198 \| START END
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	199 { $$ = new octave::text_element_list (); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	200 ;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	201
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	202 string : // empty
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	203 { parser.set_parse_result (new octave::text_element_string ("")); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	204 \| string_element_list
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	205 { parser.set_parse_result ($1); }
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	206 ;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	207
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	208 %%
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	209
21023 ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20541 diff changeset	210 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC)
24444 53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 23795 diff changeset	211 // Restore prevailing warning state for remainder of the file.
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 23795 diff changeset	212 # pragma GCC diagnostic pop
21023 ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20541 diff changeset	213 #endif
ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20541 diff changeset	214
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	215 namespace octave
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	216 {
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	217 text_element*
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	218 text_parser_tex::parse (const std::string& s)
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	219 {
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	220 octave_tex_debug = 0;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	221
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	222 if (init_lexer (s))
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	223 {
30123 fa65184b7c76 maint: use "m_" prefix for member variables in text-engine classes. Rik <rik@octave.org> parents: 29358 diff changeset	224 m_result = nullptr;
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	225
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	226 if (octave_tex_parse (*this) == 0)
30123 fa65184b7c76 maint: use "m_" prefix for member variables in text-engine classes. Rik <rik@octave.org> parents: 29358 diff changeset	227 return m_result;
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	228 }
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	229
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	230 return new text_element_string (s);
afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	231 }
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	232 }
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	233
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	234 static void
25643 afb5288a25ad move text engine classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 25640 diff changeset	235 yyerror (octave::text_parser_tex&, const char *s)
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	236 {
17272 8ce6cdd272eb Support TeX elements in FreeType renderer. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	237 fprintf (stderr, "TeX parse error: %s\n", s);
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	238 }

Mercurial > octave

annotate libinterp/corefcn/oct-tex-parser.yy @ 30564:796f54d4ddbf stable