mirror of https://github.com/vitalif/openscad
115 lines
2.9 KiB
Plaintext
115 lines
2.9 KiB
Plaintext
/*
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* OpenSCAD (www.openscad.at)
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* Copyright (C) 2009 Clifford Wolf <clifford@clifford.at>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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%{
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#include "openscad.h"
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#include "printutils.h"
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#include "parser_yacc.h"
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int lexerget_lineno(void);
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#ifdef __GNUC__
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static void yyunput(int, char*) __attribute__((unused));
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#endif
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extern const char *parser_input_buffer;
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#define YY_INPUT(buf,result,max_size) { \
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if (yyin && yyin != stdin) { \
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int c = fgetc(yyin); \
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if (c >= 0) { \
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result = 1; \
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buf[0] = c; \
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} else { \
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result = YY_NULL; \
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} \
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} else { \
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if (*parser_input_buffer) { \
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result = 1; \
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buf[0] = *(parser_input_buffer++); \
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parser_error_pos++; \
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} else { \
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result = YY_NULL; \
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} \
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} \
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}
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%}
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%option yylineno
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%option noyywrap
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%x comment
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%%
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"<"[^ \t\n>]+">" {
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char *filename = strdup(yytext+1);
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filename[strlen(filename)-1] = 0;
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handle_dep(filename);
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yyin = fopen(filename, "r");
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if (!yyin) {
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PRINTF("WARNING: Can't open input file `%s'.", filename);
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} else {
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yypush_buffer_state(yy_create_buffer( yyin, YY_BUF_SIZE ));
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BEGIN(INITIAL);
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}
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free(filename);
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}
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<<EOF>> {
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if (yyin && yyin != stdin)
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fclose(yyin);
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yypop_buffer_state();
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if (!YY_CURRENT_BUFFER)
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yyterminate();
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}
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"module" return TOK_MODULE;
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"function" return TOK_FUNCTION;
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"true" return TOK_TRUE;
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"false" return TOK_FALSE;
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"undef" return TOK_UNDEF;
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[0-9][0-9.]* { parserlval.number = atof(yytext); return TOK_NUMBER; }
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"$"?[a-zA-Z0-9_]+ { parserlval.text = strdup(yytext); return TOK_ID; }
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\"[^"]*\" {
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parserlval.text = strdup(yytext+1);
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parserlval.text[strlen(parserlval.text)-1] = 0;
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return TOK_STRING;
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}
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[\n\r\t ]
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\/\/[^\n]*\n?
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"/*" BEGIN(comment);
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<comment>"*/" BEGIN(INITIAL);
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<comment>.|\n
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"<=" return LE;
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">=" return GE;
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"==" return EQ;
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"!=" return NE;
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"&&" return AND;
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"||" return OR;
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. { return yytext[0]; }
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