im trying to create a parser.y code file from my flex.l file. this is my code from flex.l file. Please help me creating the parser.y code.

$\%\{$

#include

$\%\}$

$/*$ Regular definitions $*/$

delim $[\backslash$t$]$

ws $\{$delim$\}+$

letter $[$A$-$Za$-$z$]$

digit $[0-9]$

id $(\{$letter$\}|\_)(\{$letter$\}|\{$digit$\}|\_)*$

number $\{$digit$\}+$

$\%\%$

$\{$ws$\}\{/*$ No action and no return $*/\}$

$[$

$]\{$line$++$;$\}//$ Increment line number

bool $\{$return$($BOOL$)$;$\}$

else $\{$return$($ELSE$)$;$\}$

if $\{$return$($IF$)$;$\}$

true $\{$return$($TRUE$)$;$\}$

while $\{$return$($WHILE$)$;$\}$

do $\{$return$($DO$)$;$\}$

false $\{$return$($FALSE$)$;$\}$

int $\{$return$($INT$)$;$\}$

void $\{$return$($VOID$)$;$\}$

$\{$id$\}\{$return$($ID$)$;$\}$

$\{$number$\}\{$return$($NUM$)$;$\}//$ Fix: Separate $\{$id$\}$ and $\{$number$\}$ rules

$"("\{$yylval $=$ LPAREN; return$($PUNCT$)$;$\}$

$")"\{$yylval $=$ RPAREN; return$($PUNCT$)$;$\}$

$"["\{$yylval $=$ LBRACK; return$($PUNCT$)$;$\}$

$"]"\{$yylval $=$ RBRACK; return$($PUNCT$)$;$\}$

$"\{"\{$yylval $=$ LBRACE; return$($PUNCT$)$;$\}$

$"\}"\{$yylval $=$ RBRACE; return$($PUNCT$)$;$\}$

$"$;$"\{$yylval $=$ SEMI; return$($PUNCT$)$;$\}$

$","\{$yylval $=$ COMMA; return$($PUNCT$)$;$\}$

$"+"\{$yylval $=$ PLUS; return$($OP$)$;$\}$

$"-"\{$yylval $=$ MINUS; return$($OP$)$;$\}$

$"*"\{$yylval $=$ TIMES; return$($OP$)$;$\}$

$"/"\{$yylval $=$ DIV; return$($OP$)$;$\}$

$"\%"\{$yylval $=$ MOD; return$($OP$)$;$\}$

$"$&$"\{$yylval $=$ ADDR; return$($OP$)$;$\}$

$"$&&$"\{$yylval $=$ AND; return$($OP$)$;$\}$

$"||"\{$yylval $=$ OR; return$($OP$)$;$\}$

$"!"\{$yylval $=$ NOT; return$($OP$)$;$\}$

$"!="\{$yylval $=$ NE; return$($OP$)$;$\}$

$"="\{$yylval $=$ IS; return$($OP$)$;$\}$

$"=="\{$yylval $=$ EQ; return$($OP$)$;$\}$

$"<"\{$yylval $=$ LT; return$($OP$)$;$\}$

$"<="\{$yylval $=$ LE; return$($OP$)$;$\}$

$">"\{$yylval $=$ GT; return$($OP$)$;$\}$

$">="\{$yylval $=$ GE; return$($OP$)$;$\}$

$.\{/*$ For any unrecognized character $*/\}$

$\%\%$

int main$()\{$

yylex$()$; $//$ Calling the rules section

return $0$;

$\}$