c_lex.mylex

%{
#include <stdlib.h>
int i = 0;
%}
%%
\s|\t|\r {
  strcpy(shm_token->type, "SKIP");
}

\n {
  strcpy(shm_token->type, "SKIP");
  i++;
}

if|else|while|do|break|switch|for|case|struct|typedef {
  strcpy(shm_token->type,"KEYWORD");
}

int|float|double|long|char {
  strcpy(shm_token->type, "TYPE");
}

(un)?signed {
  strcpy(shm_token->type, "TYPE_MODIFIER");
}

#(include|define|undef|ifdef|ifndef|if|endif|elif|else) {
  strcpy(shm_token->type,"PREPROC_DERIV");
}

[a-zA-Z_][a-z0-9A-Z_]* {
  strcpy(shm_token->type, "IDENTIFIER");
}

[1-9][0-9]*|[0-9] {
  strcpy(shm_token->type, "INTEGER");
}

\+|\-|\*|/|% {
  strcpy(shm_token->type, "ARITHMETIC_OP");
}

==|&&|(\|\|)|!|<|>|<=|>= {
  strcpy(shm_token->type, "LOGICAL_OP");
}

^|&|~|\| {
  strcpy(shm_token->type, "BIT_OP");
}

\-> {
  strcpy(shm_token->type, "ACCESS_OP");
}

= {
  strcpy(shm_token->type, "ASSIGN_OP");
}

; {
  strcpy(shm_token->type, "SEMICOLON");
}

\. {
  strcpy(shm_token->type, "DOT");
}

, {
  strcpy(shm_token->type, "COMMA");
}

\[ {
  strcpy(shm_token->type, "LEFT_SQBRAC");
}

\] {
  strcpy(shm_token->type, "RIGHT_SQBRAC");
}

\( {
  strcpy(shm_token->type, "LEFT_PAREN");
}

\) {
  strcpy(shm_token->type, "RIGHT_PAREN");
}

} {
  strcpy(shm_token->type, "BLOCK_END");
}

{ {
  strcpy(shm_token->type, "BLOCK_START");
}
%%

void myfunc() {
  iter_list(print_token);
  printf("line number: %d", i);
}

int main(int argc, char** argv) {
  myylex(argv[1], myfunc);
}