| -rw-r--r-- | src/lib/stylecssscanner.ll | 223 |
diff --git a/src/lib/stylecssscanner.ll b/src/lib/stylecssscanner.ll new file mode 100644 index 0000000..1806907 --- /dev/null +++ b/src/lib/stylecssscanner.ll @@ -0,0 +1,223 @@ +%{ +/* + * Copyright (C) 1999-2007 Lorenzo Bettini, http://www.lorenzobettini.it + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include <stdlib.h> +#include <string.h> + +#include "generatorfactory.h" +#include "stylekey.h" + +#include "stylecssparser.h" +#include "my_sstream.h" +#include "messages.h" +#include "parsestyles.h" + +static std::ostringstream buff; + +extern int line ; + +//#define DEBUG_SCANNER +#ifdef DEBUG_SCANNER +#include <iostream> // for debug +#define DEB(s) std::cerr << s << std::endl; +#define DEB2(s,s2) std::cerr << s << ": " << s2 << std::endl; +#else +#define DEB(s) +#define DEB2(s,s2) +#endif + + +%} + +%option prefix="stylecsssc_" +%option noyywrap + +ws [ ]+ +tabs [\t]+ + +nl \n +cr \r +IDE [a-zA-Z_]([a-zA-Z0-9_])* + +VALUE [^\n\r:;[:blank:]]+ + +STRING \"[^\"\n]*\" + +%s COMMENT_STATE MULTI_COMMENT_STATE STRING_STATE CSS_SELECTOR CSS_PROPERTIES CSS_COLOR CSS_BG_COLOR CSS_FONT_WEIGHT CSS_FONT_STYLE CSS_FONT_FAMILY CSS_TEXT_DECORATION + +%% + +{ws}|{tabs} {} + +\r {} + +"/*" { BEGIN(MULTI_COMMENT_STATE); } +<MULTI_COMMENT_STATE>[^\n] {} +<MULTI_COMMENT_STATE>\n { ++line; BEGIN(INITIAL); } + + +<CSS_SELECTOR>"," { return ',' ; } +<CSS_SELECTOR>{IDE} { stylecsssc_lval.string = new std::string(yytext) ; return KEY ; } + +\n { ++line ; } + +<INITIAL>\. { + BEGIN(CSS_SELECTOR) ; + DEB("CSS SELECTOR"); +} +<INITIAL>[bB][oO][dD][yY] { + BEGIN(CSS_SELECTOR) ; + DEB("BODY CSS SELECTOR"); + stylecsssc_lval.string = new std::string(yytext) ; + return KEY; +} + +<CSS_SELECTOR>\. { + // in case of comma separated selectors + DEB("CSS SELECTOR"); +} +<CSS_SELECTOR>"{" { + BEGIN(CSS_PROPERTIES); + DEB("CSS PROPERTIES"); +} +<CSS_PROPERTIES>"color" { + BEGIN(CSS_COLOR); + DEB("CSS COLOR"); +} +<CSS_COLOR>"green"|"red"|"darkred"|"blue"|"brown"|"pink"|"yellow"|"cyan"|"purple"|"orange"|"brightorange"|"darkgreen"|"brightgreen"|"black"|"teal"|"gray"|"darkblue" { + BEGIN(CSS_PROPERTIES); + stylecsssc_lval.string = new std::string(yytext) ; + DEB2("CSS COLOR", yytext); + return COLOR ; +} +<CSS_COLOR>[#[:alnum:]]+ { + BEGIN(CSS_PROPERTIES); + DEB2("CSS COLOR", yytext); + /* + we need to add the " in order to make source-highlight realize + that this is a direct color specification + */ + stylecsssc_lval.string = new std::string("\"" + std::string(yytext) + "\""); + return STRINGDEF; +} +<CSS_PROPERTIES>"background-color" { + BEGIN(CSS_BG_COLOR); + DEB("CSS BACKGROUND COLOR"); +} +<CSS_BG_COLOR>"green"|"red"|"darkred"|"blue"|"brown"|"pink"|"yellow"|"cyan"|"purple"|"orange"|"brightorange"|"darkgreen"|"brightgreen"|"black"|"teal"|"gray"|"darkblue" { + BEGIN(CSS_PROPERTIES); + stylecsssc_lval.string = new std::string(yytext) ; + DEB2("CSS BG COLOR", yytext); + return BG_COLOR ; +} +<CSS_BG_COLOR>[#[:alnum:]]+ { + BEGIN(CSS_PROPERTIES); + DEB2("CSS BG COLOR", yytext); + /* + we need to add the " in order to make source-highlight realize + that this is a direct color specification + */ + stylecsssc_lval.string = new std::string("\"" + std::string(yytext) + "\""); + return BG_STRINGDEF; +} +<CSS_PROPERTIES>"font-weight" { + BEGIN(CSS_FONT_WEIGHT); + DEB("CSS FONT WEIGHT"); +} +<CSS_FONT_WEIGHT>{VALUE} { + BEGIN(CSS_PROPERTIES); + if (strcmp(yytext, "bold") == 0) { + DEB("CSS BOLD"); + stylecsssc_lval.flag = ISBOLD ; + return BOLD ; + } + DEB2("discarding not handled value", yytext); +} +<CSS_PROPERTIES>"font-style" { + BEGIN(CSS_FONT_STYLE); + DEB("CSS FONT STYLE"); +} +<CSS_FONT_STYLE>{VALUE} { + BEGIN(CSS_PROPERTIES); + if (strcmp(yytext, "italic") == 0) { + DEB("CSS ITALIC"); + stylecsssc_lval.flag = ISITALIC ; + return ITALICS ; + } + DEB2("discarding not handled value", yytext); +} +<CSS_PROPERTIES>"font-family" { + BEGIN(CSS_FONT_FAMILY); + DEB("CSS FONT FAMILY"); +} +<CSS_FONT_FAMILY>{VALUE} { + BEGIN(CSS_PROPERTIES); + if (strcmp(yytext, "monospace") == 0) { + DEB("CSS FIXED"); + stylecsssc_lval.flag = ISFIXED ; + return FIXED ; + } + DEB2("discarding not handled value", yytext); +} +<CSS_PROPERTIES>"text-decoration" { + BEGIN(CSS_TEXT_DECORATION); + DEB("CSS TEXT DECORATION"); +} +<CSS_TEXT_DECORATION>{VALUE} { + BEGIN(CSS_PROPERTIES); + if (strcmp(yytext, "underline") == 0) { + DEB("CSS UNDERLINE"); + stylecsssc_lval.flag = ISUNDERLINE ; + return UNDERLINE ; + } + DEB2("discarding not handled value", yytext); +} +<CSS_PROPERTIES>"}" { + BEGIN(INITIAL); + DEB("CSS END PROPERTIES"); + /* + we must return ; since this is the terminator of a style option + so we simulate it in case of css files + */ + return ';' ; +} +<CSS_COLOR,CSS_BG_COLOR,CSS_FONT_WEIGHT,CSS_FONT_STYLE,CSS_FONT_FAMILY,CSS_TEXT_DECORATION>":"|";"|[\t]|[[:blank:]] { + /* discard other characters */ + DEB2("CSS discarding", yytext); +} +<CSS_PROPERTIES>. { + /* discard other properties */ + DEB2("CSS PROPERTIES discarding", yytext); +} + +<<EOF>> { + DEB("reached EOF of the style file"); + + DEB("freeing scanner memory"); + /* For non-reentrant C scanner only. */ + yy_delete_buffer(YY_CURRENT_BUFFER); + + yyterminate(); +} + +<INITIAL>. { return yytext[0] ; } + +%% + |