Re: [PATCH 11/12] util: use GRegex in virStringMatch

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On Wed, Nov 13, 2019 at 16:48:52 +0100, Ján Tomko wrote:
> Signed-off-by: Ján Tomko <jtomko@xxxxxxxxxx>
> ---
>  src/util/virstring.c | 22 ++++++++--------------
>  1 file changed, 8 insertions(+), 14 deletions(-)
> 
> diff --git a/src/util/virstring.c b/src/util/virstring.c
> index 3da793c87a..6add2278d8 100644
> --- a/src/util/virstring.c
> +++ b/src/util/virstring.c
> @@ -19,7 +19,6 @@
>  #include <config.h>
>  
>  #include <glib/gprintf.h>
> -#include <regex.h>
>  #include <locale.h>
>  
>  #include "c-ctype.h"
> @@ -1089,24 +1088,19 @@ bool
>  virStringMatch(const char *str,
>                 const char *regexp)
>  {
> -    regex_t re;
> -    int rv;
> +    g_autoptr(GRegex) regex = NULL;
> +    g_autoptr(GError) err = NULL;
>  
>      VIR_DEBUG("match '%s' for '%s'", str, regexp);
>  
> -    if ((rv = regcomp(&re, regexp, REG_EXTENDED | REG_NOSUB)) != 0) {
> -        char error[100];
> -        regerror(rv, &re, error, sizeof(error));
> -        VIR_WARN("error while compiling regular expression '%s': %s",
> -                 regexp, error);
> -        return false;
> +    regex = g_regex_new(regexp, 0, 0, &err);
> +    if (!regex) {
> +        virReportError(VIR_ERR_INTERNAL_ERROR,
> +                       _("Failed to compile regex %s"), err->message);
> +        return -1;

The function returns bool.

Additionally there is one non-test use of this function. Do you think we
should open-code it instead?

>      }
>  
> -    rv = regexec(&re, str, 0, NULL, 0);
> -
> -    regfree(&re);
> -
> -    return rv == 0;
> +    return g_regex_match(regex, str, 0, NULL);
>  }

With the return value/error case sorted out:

Reviewed-by: Peter Krempa <pkrempa@xxxxxxxxxx>

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