C > Miscellaneous

Print all urls found in text file

Print all urls found in text file

#include <stdio.h>
#include <regex.h>
#include <stdlib.h>
#include <string.h>
#include <locale.h>
#include <sys/types.h>

int main(void) {
 char line[1024];
 char delim[] = "<> \t\n";
 char *word = NULL;
 int retval = 0;
 regex_t re;

 setlocale(LC_ALL, "");

 if(regcomp(&re, "href", REG_ICASE) != 0)
  return 1;

 while((fgets(line, 1024, stdin)) != NULL) {
  word = strtok(line, delim);
  while(word != NULL) {
   if((retval = regexec(&re, word, 0, NULL, 0)) == 0)
    printf("%s\n", word);

   word = strtok(NULL, delim);
  }
 }

 return 0;
}