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%option nounput
%{
//
// tikzparser.l
// TikZiT
//
// Copyright 2010 Chris Heunen. All rights reserved.
//
//
// This file is part of TikZiT.
//
// TikZiT 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 3 of the License, or
// (at your option) any later version.
//
// TikZiT 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 TikZiT. If not, see <http://www.gnu.org/licenses/>.
//
#import <Foundation/Foundation.h>
#ifdef __APPLE__
#include "y.tab.h"
#else
#include "tikzparser.h"
#endif
%}
%%
\n /* ignore end of line */;
[ \t]+ /* ignore whitespace */;
\\begin return LATEXBEGIN;
\\end return LATEXEND;
\{tikzpicture\} return TIKZPICTURE;
\{pgfonlayer\} return PGFONLAYER;
\( return LEFTPARENTHESIS;
\) return RIGHTPARENTHESIS;
\[ return LEFTBRACKET;
\] return RIGHTBRACKET;
; return SEMICOLON;
, return COMMA;
\. return FULLSTOP;
= return EQUALS;
\\draw return DRAW;
to return TO;
\\node return NODE;
\\path return PATH;
node return ALTNODE;
rectangle return RECTANGLE;
at return AT;
[0-9]+ {
yylval.nsstr=[NSString stringWithUTF8String:yytext];
return NATURALNUMBER;
}
(\-?[0-9]*\.[0-9]+)|(\-?[0-9]+) {
yylval.nsstr=[NSString stringWithUTF8String:yytext];
return REALNUMBER;
}
\\?[a-zA-Z<>\-\'][a-zA-Z<>\-\'0-9]* { //'
yylval.nsstr=[NSString stringWithUTF8String:yytext];
return LWORD;
}
\"[^\"]*\" /* " */ {
yylval.nsstr=[NSString stringWithUTF8String:yytext];
return QUOTEDSTRING;
}
\{ {
NSMutableString *buf = [NSMutableString string];
unsigned int brace_depth = 1;
while (1) {
char c = input();
// eof reached before closing brace
if (c == '\0' || c == EOF) yyterminate();
if (c == '{') brace_depth++;
else if (c == '}') {
brace_depth--;
if (brace_depth == 0) break;
}
[buf appendFormat:@"%c", c];
}
NSString *s = [buf copy];
[s autorelease];
yylval.nsstr = s;
return DELIMITEDSTRING;
}
/* vi:ft=lex:noet:ts=4:sts=4:sw=4:
*/
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