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Emit a whole line in one go

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Since the graph prefix will be printed when calling
emit_line, so the functions should be used to emit a
complete line out once a time. No one should call
emit_line to just output some strings instead of a
complete line.
Use a strbuf to compose the whole line, and then
call emit_line to output it once.

Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Bo Yang 2010-05-29 23:32:05 +08:00 committed by Junio C Hamano
parent 7be5761073
commit 2efcc97764
1 changed files with 27 additions and 5 deletions
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32
diff.c
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@ -370,6 +370,9 @@ static void emit_hunk_header(struct emit_callback *ecbdata,
const char *reset = diff_get_color(ecbdata->color_diff, DIFF_RESET);
static const char atat[2] = { '@', '@' };
const char *cp, *ep;
struct strbuf msgbuf = STRBUF_INIT;
int org_len = len;
int i = 1;
/*
* As a hunk header must begin with "@@ -<old>, +<new> @@",
@ -384,17 +387,36 @@ static void emit_hunk_header(struct emit_callback *ecbdata,
ep += 2; /* skip over @@ */
/* The hunk header in fraginfo color */
emit_line(ecbdata->opt, frag, reset, line, ep - line);
strbuf_add(&msgbuf, frag, strlen(frag));
strbuf_add(&msgbuf, line, ep - line);
strbuf_add(&msgbuf, reset, strlen(reset));
/*
* trailing "\r\n"
*/
for ( ; i < 3; i++)
if (line[len - i] == '\r' || line[len - i] == '\n')
len--;
/* blank before the func header */
for (cp = ep; ep - line < len; ep++)
if (*ep != ' ' && *ep != '\t')
break;
if (ep != cp)
emit_line(ecbdata->opt, plain, reset, cp, ep - cp);
if (ep != cp) {
strbuf_add(&msgbuf, plain, strlen(plain));
strbuf_add(&msgbuf, cp, ep - cp);
strbuf_add(&msgbuf, reset, strlen(reset));
}
if (ep < line + len)
emit_line(ecbdata->opt, func, reset, ep, line + len - ep);
if (ep < line + len) {
strbuf_add(&msgbuf, func, strlen(func));
strbuf_add(&msgbuf, ep, line + len - ep);
strbuf_add(&msgbuf, reset, strlen(reset));
}
strbuf_add(&msgbuf, line + len, org_len - len);
emit_line(ecbdata->opt, "", "", msgbuf.buf, msgbuf.len);
strbuf_release(&msgbuf);
}
static struct diff_tempfile *claim_diff_tempfile(void) {