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From: Thiago Farina <tfransosi@gmail.com>
To: Bert Wesarg <bert.wesarg@googlemail.com>
Cc: git@vger.kernel.org
Subject: Re: [PATCH/RFC 1/4] grep: prepare for re-using the space of the regexp member in struct grep_pat
Date: Mon, 2 May 2011 10:27:28 -0300	[thread overview]
Message-ID: <BANLkTi=5Rr2t-u9dJCg6EpcbfEALJDY4wQ@mail.gmail.com> (raw)
In-Reply-To: <f768ea6e107cdd229a18df0bac3bf583eb1f9fc5.1304321122.git.bert.wesarg@googlemail.com>

On Mon, May 2, 2011 at 8:39 AM, Bert Wesarg <bert.wesarg@googlemail.com> wrote:
> Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com>
> ---
>  grep.c |   12 ++++++------
>  grep.h |    4 +++-
>  2 files changed, 9 insertions(+), 7 deletions(-)
>
> diff --git a/grep.c b/grep.c
> index 63c4280..b8eda9e 100644
> --- a/grep.c
> +++ b/grep.c
> @@ -70,7 +70,7 @@ static void compile_regexp(struct grep_pat *p, struct grep_opt *opt)
>        if (p->fixed)
>                return;
>
> -       err = regcomp(&p->regexp, p->pattern, opt->regflags);
> +       err = regcomp(&p->u.regexp, p->pattern, opt->regflags);
>        if (err) {
>                char errbuf[1024];
>                char where[1024];
> @@ -81,8 +81,8 @@ static void compile_regexp(struct grep_pat *p, struct grep_opt *opt)
>                        sprintf(where, "%s, ", p->origin);
>                else
>                        where[0] = 0;
> -               regerror(err, &p->regexp, errbuf, 1024);
> -               regfree(&p->regexp);
> +               regerror(err, &p->u.regexp, errbuf, 1024);
> +               regfree(&p->u.regexp);
>                die("%s'%s': %s", where, p->pattern, errbuf);
>        }
>  }
> @@ -320,7 +320,7 @@ void free_grep_patterns(struct grep_opt *opt)
>                case GREP_PATTERN: /* atom */
>                case GREP_PATTERN_HEAD:
>                case GREP_PATTERN_BODY:
> -                       regfree(&p->regexp);
> +                       regfree(&p->u.regexp);
>                        break;
>                default:
>                        break;
> @@ -464,7 +464,7 @@ static int match_one_pattern(struct grep_pat *p, char *bol, char *eol,
>        if (p->fixed)
>                hit = !fixmatch(p, bol, eol, pmatch);
>        else
> -               hit = !regmatch(&p->regexp, bol, eol, pmatch, eflags);
> +               hit = !regmatch(&p->u.regexp, bol, eol, pmatch, eflags);
>
>        if (hit && p->word_regexp) {
>                if ((pmatch[0].rm_so < 0) ||
> @@ -794,7 +794,7 @@ static int look_ahead(struct grep_opt *opt,
>                if (p->fixed)
>                        hit = !fixmatch(p, bol, bol + *left_p, &m);
>                else
> -                       hit = !regmatch(&p->regexp, bol, bol + *left_p, &m, 0);
> +                       hit = !regmatch(&p->u.regexp, bol, bol + *left_p, &m, 0);
>                if (!hit || m.rm_so < 0 || m.rm_eo < 0)
>                        continue;
>                if (earliest < 0 || m.rm_so < earliest)
> diff --git a/grep.h b/grep.h
> index 06621fe..9912c11 100644
> --- a/grep.h
> +++ b/grep.h
> @@ -32,7 +32,9 @@ struct grep_pat {
>        const char *pattern;
>        size_t patternlen;
>        enum grep_header_field field;
> -       regex_t regexp;
> +       union {
> +               regex_t regexp;
> +       } u;

Instead of u, would be worth to rename it to something more descriptive?

>        unsigned fixed:1;
>        unsigned ignore_case:1;
>        unsigned word_regexp:1;
> --
> 1.7.5.349.gfeb1a
>
> --
> To unsubscribe from this list: send the line "unsubscribe git" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

  reply	other threads:[~2011-05-02 13:27 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-02 11:39 [PATCH/RFC 0/4] grep: support to match by line number Bert Wesarg
     [not found] ` <cover.1304321122.git.bert.wesarg@googlemail.com>
2011-05-02 11:39   ` [PATCH/RFC 1/4] grep: prepare for re-using the space of the regexp member in struct grep_pat Bert Wesarg
2011-05-02 13:27     ` Thiago Farina [this message]
2011-05-02 14:25       ` Bert Wesarg
2011-05-02 11:39   ` [PATCH/RFC 2/4] grep: pass current line number down to match_one_pattern Bert Wesarg
2011-05-02 13:30     ` Thiago Farina
2011-05-02 14:29       ` Bert Wesarg
2011-05-02 16:40         ` Junio C Hamano
2011-05-02 11:39   ` [PATCH/RFC 3/4] grep: introduce pattern which matches at line number Bert Wesarg
2011-05-02 13:33     ` Thiago Farina
2011-05-02 14:32       ` Bert Wesarg
2011-05-02 11:39   ` [PATCH/RFC 4/4] grep: provide option to match " Bert Wesarg
2011-05-02 11:54 ` [PATCH/RFC 0/4] grep: support to match by " Sverre Rabbelier
2011-05-02 12:20   ` Bert Wesarg
2011-05-02 16:46     ` Junio C Hamano
2011-05-02 19:14       ` Bert Wesarg
2011-05-02 19:30         ` Junio C Hamano
2011-05-02 16:38 ` Junio C Hamano
2011-05-02 17:11   ` Jakub Narebski
2011-05-02 18:54   ` Bert Wesarg
2011-05-02 19:08     ` Junio C Hamano
2011-05-02 19:33       ` Bert Wesarg

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