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parser/minako-lexic.l

+%option noyywrap
+%option nounput
+%option yylineno
+%option noinput
+%option never-interactive
+
+WHITESPACE [[:space:]]
+INTEGER    [[:digit:]]+
+FLOAT      {INTEGER}"."{INTEGER}|"."{INTEGER}
+
+%x COMMENT
+
+%{
+	#include <stdlib.h>
+	#include "minako-syntax.tab.h"
+%}
+
+%%
+
+{WHITESPACE}+ { /* ignore whitespaces */ }
+"//".*\n      {                 /* C++ Comment */ }
+"/*"          { BEGIN(COMMENT); /* C   Comment */ }
+<COMMENT>"*/" { BEGIN(INITIAL); }
+<COMMENT>"*"[^/]
+<COMMENT>[^*]+
+
+"&&"          return AND;
+"||"          return OR;
+"=="          return EQ;
+"!="          return NEQ;
+"<="          return LEQ;
+">="          return GEQ;
+"<"           return LSS;
+">"           return GRT;
+
+"bool"        return KW_BOOLEAN;
+"do"          return KW_DO;
+"else"        return KW_ELSE;
+"float"       return KW_FLOAT;
+"for"         return KW_FOR;
+"if"          return KW_IF;
+"int"         return KW_INT;
+"printf"      return KW_PRINTF;
+"return"      return KW_RETURN;
+"void"        return KW_VOID;
+"while"       return KW_WHILE;
+
+{FLOAT}([eE][\-+]?{INTEGER})? |
+{INTEGER}([eE][\-+]?{INTEGER}) {
+	yylval.floatValue = strtod(yytext, NULL);
+	return CONST_FLOAT;
+}
+{INTEGER} {
+	yylval.intValue = strtol(yytext, NULL, 10);
+	return CONST_INT;
+}
+"true"      { yylval.intValue = 1; return CONST_BOOLEAN; }
+"false"     { yylval.intValue = 0; return CONST_BOOLEAN; }
+[[:alpha:]][[:alnum:]_]* {
+	yylval.string = malloc(yyleng + 1);
+	strcpy(yylval.string, yytext);
+	return ID;
+}
+\"[^\n\"]*\" {
+	yylval.string = malloc(yyleng - 2 + 1);
+	memcpy(yylval.string, yytext + 1, yyleng - 2);
+	yylval.string[yyleng - 2] = 0;
+	return CONST_STRING;
+}
+
+.             return yytext[0];
+
+%%