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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <regex.h>
  4.  
  5. int main (void)
  6. {
  7.   int match;
  8.   int err;
  9.   regex_t preg;
  10.   regmatch_t pmatch[4];
  11.   size_t nmatch = 4;
  12.   const char *str_request = "GET http://w...content-available-to-author-only...e.com HTTP/1.1";
  13.  
  14.   const char *str_regex = "([A-Za-z]+) +(http?://.*) +(HTTP/[0-9][.][0-9])";
  15.   err = regcomp(&preg, str_regex, REG_EXTENDED);
  16.   if (err == 0)
  17.     {
  18.       match = regexec(&preg, str_request, nmatch, pmatch, 0);
  19.       nmatch = preg.re_nsub;
  20.       regfree(&preg);
  21.       if (match == 0)
  22.         {
  23.           printf("\"%.*s\"\n", pmatch[1].rm_eo - pmatch[1].rm_so, &str_request[pmatch[1].rm_so]);
  24.           printf("\"%.*s\"\n", pmatch[2].rm_eo - pmatch[2].rm_so, &str_request[pmatch[2].rm_so]);
  25.           printf("\"%.*s\"\n", pmatch[3].rm_eo - pmatch[3].rm_so, &str_request[pmatch[3].rm_so]);
  26.         }
  27.       else if (match == REG_NOMATCH)
  28.         {
  29.           printf("unmatch\n");
  30.         }
  31.     }
  32.   return 0;
  33.  }
Success #stdin #stdout 0s 2292KB
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stdin
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Standard input is empty
stdout
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"GET"
"http://w...content-available-to-author-only...e.com"
"HTTP/1.1"
https://ideone.com/sKVvxR
language:
C (gcc 8.3)
created:
7 years ago
visibility:
secret

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