fork download
copy 
  1. #include <sys/types.h>
  2. #include <regex.h>
  3. #include <stdio.h>
  4.  
  5. int main(int argc, char *argv[]){
  6.         regex_t regex;
  7.         int reti;
  8.         char msgbuf[100];
  9. 		char inputStr2[100]="12:34:04";
  10. 		char inputStr[100]="12:34";
  11.  
  12. /* Compile regular expression */
  13.         reti = regcomp(&regex,"^\\(\\(\\([01]?[0-9]|2[0-3]\\):\\)?\\([0-5]?[0-9]\\):\\)?\\([0-5]?[0-9]\\)$"
  14. , 0);
  15.         if( reti ){
  16. 		fprintf(stderr, "Could not compile regex\n");
  17. 		}
  18.  
  19. /* Execute regular expression */
  20.            printf("%s is the string\n",inputStr);
  21.         reti = regexec(&regex, inputStr, 0, NULL, 0);
  22.         if( !reti ){
  23.                 puts("Match");
  24.         }
  25.         else if( reti == REG_NOMATCH ){
  26.                 puts("No match");
  27.         }
  28.         else{
  29.                 regerror(reti, &regex, msgbuf, sizeof(msgbuf));
  30.                 fprintf(stderr, "Regex match failed: %s\n", msgbuf);
  31.         }
  32.          printf("%s is the string\n",inputStr2);
  33.         reti = regexec(&regex, inputStr2, 0, NULL, 0);
  34.         if( !reti ){
  35.                 puts("Match");
  36.         }
  37.         else if( reti == REG_NOMATCH ){
  38.                 puts("No match");
  39.         }
  40.         else{
  41.                 regerror(reti, &regex, msgbuf, sizeof(msgbuf));
  42.                 fprintf(stderr, "Regex match failed: %s\n", msgbuf);
  43.         }
  44. /* Free compiled regular expression if you want to use the regex_t again */
  45. 	regfree(&regex);
  46.  
  47.         return 0;
  48. }
Success #stdin #stdout 0.01s 2856KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
12:34 is the string
No match
12:34:04 is the string
No match
https://ideone.com/2nD2O
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!