Are you attempting to do something similar to this:
#include <stdio.h>
#include <stdlib.h>
#include <regex.h>
main()
{
regex_t findDate;
char *pattern = "[0-9][0-9] [A-Z][a-z][a-z] [0-9][0-9][0-9][0-9]";
char *string = "Today is 25 Apr 2009";
char buf[256];
regmatch_t pmatch[100];
int status, eflag;
/* Compile the pattern */
if ((status = regcomp (&findDate, pattern, REG_EXTENDED)) != 0){
printf("Unable to compile pattern!\n");
exit(2);
}
eflag = 0;
/* Extract all matches */
while ( status = regexec(&findDate,string,1,pmatch,eflag) == 0) {
printf("Date found: %s\n", string + pmatch[0].rm_so);
string += pmatch[0].rm_eo;
eflag = REG_NOTBOL;
}
regfree (&findDate);
}
Output:
Date found: 25 Apr 2009
Slightly modified from example found here:
http://publib.boulder.ibm.com/infocenter/systems/index.jsp?topic=/com.ibm.aix.nls/doc/nlsgdrf/internationalized_reg_expression_subr.htm