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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4. #include <regex.h> 
  5.  
  6. int check_match_var(char *str)
  7. {
  8.   int err;
  9.   int match;
  10.   regex_t preg;
  11.   char err_buf[BUFSIZ];
  12.   const char *regex = "^(int|char|float|double) [a-zA-Z0-9]{1,};";
  13.  
  14.   err = regcomp(&preg, regex, REG_EXTENDED);
  15.   printf("Err : %d\n", err);
  16.   if (err == 0)
  17.     {
  18.       match = regexec(&preg, str, 0, NULL, 0);
  19.       regfree(&preg);
  20.       if (match == 0)
  21.     printf("Match !\n");
  22.       else
  23.     printf("No match !\n");
  24.     }
  25.   else
  26.     {
  27.       regerror(err, &preg, err_buf, BUFSIZ);
  28.       printf("regcomp: %s\n", err_buf);
  29.       return (1);
  30.     }
  31.   return (0);
  32. }
  33.  
  34. int marvin(char **av)
  35. {
  36.   check_match_var(av[1]);
  37.   return (0);
  38. }
  39.  
  40. int main(int ac, char **av)
  41. {
  42.     	check_match_var("int x;");
  43. //      marvin(av);
  44.   return (0);
  45. }
Success #stdin #stdout 0s 2380KB
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stdin
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int b;
stdout
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Err : 0
Match !
https://ideone.com/4JE7wF
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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