Regexp to match http header format with "g_regex_match_simple"

Question

I'm trying to match HTTP header format in C using glib's g_regex_match_simple:

static const char header_regex[] = "/([\\w-]+): (\\w+)";

...

const char header[] = "Test: header1";
if (g_regex_match_simple(header_regex, header, 0, 0))
{
    headers[index] = g_strdup(header);
    index++;
}
else
{
    error_setg(errp, "%s is not a valid http header format", header);
    goto cleanup;
}

I'm getting FALSE out of g_regex_match_simple() even though "Test: header1" should be valid.

What am I missing?

I tried the answer in Regexp to match logcat brief format with g_regex_match_simple but it didn't work for me.

Ideas?

Answer 1

The following are compiled with clang -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include youe_file.c -lgobject-2.0 -lglib-2.0.

#include <stdio.h>
#include <glib.h>

static const char header_regex[] = "([\\w-]+): (\\w+)";


int main()
{
const char header[] = "Test: header1";
if (g_regex_match_simple(header_regex, header, 0, 0)){
 printf("+\n");}
else {
    printf("-\n");
}

return 0;
}

And it gives a positive match. The difference were in regexp pattern. I've removed a slash.

Original string static const char header_regex[] = "/([\\w-]+): (\\w+)"; needs to be static const char header_regex[] = "([\\w-]+): (\\w+)";

                                   ^
                                   |
                                no slash here