python-interpreter/python.l at master · something-something-something/python-interpreter · GitHub

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%option noyywrap

%{

using namespace std;
#include <iostream>
#include <stdlib.h>
#include <string>
#include "python.tab.h"
#include <vector>
vector<char*> vecOfStrings;
%}
%%
#[^\n]* {
	yylval.s=strdup(yytext);
	vecOfStrings.push_back(yylval.s);

	return COMMENT;}
\n {

	yylval.s=strdup(yytext);
	vecOfStrings.push_back(yylval.s);

 return ENDL;}
[0-9]* {yylval.intv=atoi(yytext); return INT;}

\"([[:print:]]{-}[\"\n])*\" {
	yylval.s=strdup(yytext);
	vecOfStrings.push_back(yylval.s);

	 return STRING;}
\'([[:print:]]{-}[\'\n])*\' {
	yylval.s=strdup(yytext);
	vecOfStrings.push_back(yylval.s);

	 return STRING;}
if[ ]+ {
	yylval.s=strdup(yytext);
	vecOfStrings.push_back(yylval.s);
	 return IFID;}
def[ ]+ {
	yylval.s=strdup(yytext);
	vecOfStrings.push_back(yylval.s);
	 return FUNCDEF;}
return[ ]+ {
	yylval.s=strdup(yytext);
	vecOfStrings.push_back(yylval.s);
	 return RETURNS;}
print([ ]*)\( {return PRINT;}
else: {
	return ELSE;
}
[\+\-\/\*] {
	yylval.s=strdup(yytext);
	vecOfStrings.push_back(yylval.s);
	return MATHSYMBOL;}
[a-zA-Z0-9]* {
	yylval.s=strdup(yytext);
	vecOfStrings.push_back(yylval.s);
	 return IDENT;}/*obviously would use a diffrent regexp for string*/
==|>|<|>=|<=|!= {
	yylval.s=strdup(yytext);
	vecOfStrings.push_back(yylval.s);
	return BOOLSYMBOL;}
= {return '=';}
: {return ':';}
"(" {return '(';}
")" {return ')';}
"," {return ',';}
^[ ]+ {
	yylval.intv=strlen(yytext);
	return INDENT;
	}
. ;
%%

void delstringsflex(){
	for(int i=0;i<vecOfStrings.size();i++){
		free(vecOfStrings[i]);
	}

}