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authorschodet2004-02-07 16:55:41 +0000
committerschodet2004-02-07 16:55:41 +0000
commit9fdd6704947174fae292dfc6e14cc1029a7f7a6c (patch)
tree40a4fe775845ececdaf27e82d99d6a06f6b3803e /2004/i/nono/src/config/config_lex.ll
parentb673946d76e436c067d24e535b1e0a167b9dfc47 (diff)
Initial revision
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+%{
+/* nono - programme du robot 2004. {{{
+ *
+ * Copyright (C) 2004 Nicolas Schodet
+ *
+ * Robot APB Team/Efrei 2004.
+ * Web: http://assos.efrei.fr/robot/
+ * Email: robot AT efrei DOT fr
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * }}} */
+
+#include "config/config_lex.h"
+
+config_yytype config_yylval;
+config_wrap_f wrap_f = 0;
+void *wrap_data = 0;
+
+%}
+
+ID [_a-zA-Z][-_a-zA-Z0-9]*
+
+NUM [-+]?[0-9]+
+
+HNUM "0x"[0-9a-fzA-F]+
+
+BNUM "0b"[01]+
+
+FLOAT [-+]?[0-9]*"."[0-9]*
+
+STRING \"[^\n\"]*\"
+
+%option nounput
+%option prefix="config_yy"
+%option yylineno
+
+%%
+
+{FLOAT} {
+ config_yylval.fl = strtod (config_yytext, 0);
+ return FLOAT;
+}
+
+{BNUM} {
+ config_yylval.num = strtol (config_yytext + 2, 0, 2);
+ return NUM;
+}
+
+{HNUM} {
+ config_yylval.num = strtol (config_yytext + 2, 0, 16);
+ return NUM;
+}
+
+{NUM} {
+ config_yylval.num = strtol (config_yytext, 0, 10);
+ return NUM;
+}
+
+"true" { config_yylval.boolean = true; return BOOL; }
+"false" { config_yylval.boolean = false; return BOOL; }
+
+{ID} {
+ config_yylval.id = config_yytext;
+ return ID;
+}
+
+{STRING} {
+ config_yytext[config_yyleng - 1] = '\0';
+ config_yylval.str = config_yytext + 1;
+ return STRING;
+}
+
+"#".* /* Commentaires. */
+
+[ \t\n]+ /* Rien à battre. */
+
+. return ERR;
+
+%%
+
+// Ouvre un fichier pour l'utiliser avec le lexer.
+int
+config_yyopen (const char *filename, config_wrap_f wrap, void *data)
+{
+ if (config_yyin && config_yyin != stdin)
+ fclose (config_yyin);
+ config_yyin = fopen (filename, "r");
+ if (!config_yyin) return -1;
+ wrap_f = wrap;
+ wrap_data = data;
+ return 0;
+}
+
+// Ferme le fichier du lexer.
+void
+config_yyclose (void)
+{
+ if (config_yyin && config_yyin != stdin)
+ fclose (config_yyin);
+ wrap_f = 0;
+ wrap_data = 0;
+}
+
+// Appelé par flex pour changer de fichier.
+int
+config_yywrap (void)
+{
+ if (wrap_f)
+ return wrap_f (wrap_data) ? 0 : 1;
+ else
+ return 1;
+}
+
+// vim: ft=lex