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add xdi_diff_hunks() for callers that only need hunk lengths

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Based on a patch by Brian Downing, this uses the xdiff emit_func feature
to implement xdi_diff_hunks().  It's a function that calls a callback for
each hunk of a diff, passing its lengths.

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
2008-10-25 15:31:15 +02:00
committed by Junio C Hamano
parent ef2e62fe23
commit 86295bb6ba
2 changed files with 52 additions and 1 deletions
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4
xdiff-interface.h
View File

@ -4,12 +4,16 @@
#include "xdiff/xdiff.h"
typedef void (*xdiff_emit_consume_fn)(void *, char *, unsigned long);
typedef void (*xdiff_emit_hunk_consume_fn)(void *, long, long, long);
int xdi_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, xdemitconf_t const *xecfg, xdemitcb_t *ecb);
int xdi_diff_outf(mmfile_t *mf1, mmfile_t *mf2,
xdiff_emit_consume_fn fn, void *consume_callback_data,
xpparam_t const *xpp,
xdemitconf_t const *xecfg, xdemitcb_t *xecb);
int xdi_diff_hunks(mmfile_t *mf1, mmfile_t *mf2,
xdiff_emit_hunk_consume_fn fn, void *consume_callback_data,
xpparam_t const *xpp, xdemitconf_t *xecfg);
int parse_hunk_header(char *line, int len,
int *ob, int *on,
int *nb, int *nn);