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hc.l
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%{
#include <stdlib.h>
#include <stdio.h>
#include "hc.h"
#include "y.tab.h"
%}
alpha [_a-zA-Z][_a-zA-Z0-9]*
%%
"int" { yylval.sval = strdup(yytext); return INT; }
"char" { yylval.sval = strdup(yytext); return CHAR; }
"byte" { yylval.sval = strdup(yytext); return BYTE; }
"void" { yylval.sval = strdup(yytext); return VOID; }
"vector" { yylval.sval = strdup(yytext); return VECTOR; }
"while" { yylval.sval = strdup(yytext); return WHILE; }
"if" { yylval.sval = strdup(yytext); return IF; }
"return" { yylval.sval = strdup(yytext); return RETURN; }
"else" { yylval.sval = strdup(yytext); return ELSE; }
"main" { yylval.sval = strdup(yytext); return MAIN; }
"for" { yylval.sval = strdup(yytext); return FOR; }
"in" { yylval.sval = strdup(yytext); return IN; }
"first" { yylval.sval = strdup(yytext); return FIRST; }
"second" { yylval.sval = strdup(yytext); return SECOND; }
"reverse" { yylval.sval = strdup(yytext); return REVERSE; }
"pushback" { yylval.sval = strdup(yytext); return PUSHBACK; }
"delete" { yylval.sval = strdup(yytext); return DELETE; }
"//".* { printf("ONE LINE COMMENT\n"); }
\/\*(\/|[^\/\*]|\**[^\/\*]+)*\*+\/ { printf("COMMENT\n"); }
[0-9]+ { yylval.ival = atoi(yytext); return NUM; }
{alpha} { yylval.sval = strdup(yytext); return ID; }
"+" { return '+'; }
"-" { return '-'; }
"*" { return '*'; }
"/" { return '/'; }
"%" { return '%'; }
"&" { return '&'; }
"|" { return '|'; }
"^" { return '^'; }
"~" { return '~'; }
"++" { yylval.sval = strdup(yytext); return INC; }
"--" { yylval.sval = strdup(yytext); return DEC; }
"<=" { yylval.sval = strdup(yytext); return LESSEQ; }
">=" { yylval.sval = strdup(yytext); return GRETEQ; }
"==" { yylval.sval = strdup(yytext); return EQUAL; }
"!=" { yylval.sval = strdup(yytext); return NEQUAL; }
"<<" { yylval.sval = strdup(yytext); return SHIFTL; }
">>" { yylval.sval = strdup(yytext); return SHIFTR; }
"+=" { yylval.sval = strdup(yytext); return PLUSASSIGN; }
"-=" { yylval.sval = strdup(yytext); return MINUSASSIGN; }
"*=" { yylval.sval = strdup(yytext); return MULASSIGN; }
"/=" { yylval.sval = strdup(yytext); return DIVASSIGN; }
"%=" { yylval.sval = strdup(yytext); return REMASSIGN; }
"=" { yylval.sval = strdup(yytext); return ASSIGN; }
"(" { return '('; }
")" { return ')'; }
"{" { return '{'; }
"}" { return '}'; }
"[" { return '['; }
"]" { return ']'; }
":" { return ':'; }
";" { return ';'; }
"," { return ','; }
"." { return '.'; }
"<" { return '<'; }
">" { return '>'; }
[ \t\r\n] ;
. { return -1;}
%%
int yywrap() {
return 1;
}