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grep: factor out create_grep_pat()

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Add create_grep_pat(), a shared helper for all grep pattern allocation
and initialization needs.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
René Scharfe 2012-05-20 16:32:39 +02:00 committed by Junio C Hamano
parent f174a2583c
commit fc45675110
1 changed files with 17 additions and 11 deletions
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28
grep.c
View File

@ -3,15 +3,26 @@
#include "userdiff.h"
#include "xdiff-interface.h"
void append_header_grep_pattern(struct grep_opt *opt, enum grep_header_field field, const char *pat)
static struct grep_pat *create_grep_pat(const char *pat, size_t patlen,
const char *origin, int no,
enum grep_pat_token t,
enum grep_header_field field)
{
struct grep_pat *p = xcalloc(1, sizeof(*p));
p->pattern = pat;
p->patternlen = strlen(pat);
p->origin = "header";
p->no = 0;
p->token = GREP_PATTERN_HEAD;
p->patternlen = patlen;
p->origin = origin;
p->no = no;
p->token = t;
p->field = field;
return p;
}
void append_header_grep_pattern(struct grep_opt *opt,
enum grep_header_field field, const char *pat)
{
struct grep_pat *p = create_grep_pat(pat, strlen(pat), "header", 0,
GREP_PATTERN_HEAD, field);
*opt->header_tail = p;
opt->header_tail = &p->next;
p->next = NULL;
@ -26,12 +37,7 @@ void append_grep_pattern(struct grep_opt *opt, const char *pat,
void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen,
const char *origin, int no, enum grep_pat_token t)
{
struct grep_pat *p = xcalloc(1, sizeof(*p));
p->pattern = pat;
p->patternlen = patlen;
p->origin = origin;
p->no = no;
p->token = t;
struct grep_pat *p = create_grep_pat(pat, patlen, origin, no, t, 0);
*opt->pattern_tail = p;
opt->pattern_tail = &p->next;
p->next = NULL;