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-rw-r--r--xdiff/xdiff.h6
-rw-r--r--xdiff/xutils.c21
2 files changed, 22 insertions, 5 deletions
diff --git a/xdiff/xdiff.h b/xdiff/xdiff.h
index 2356da5..b158369 100644
--- a/xdiff/xdiff.h
+++ b/xdiff/xdiff.h
@@ -86,7 +86,11 @@ typedef struct s_xpparam {
typedef struct s_xdemitcb {
void *priv;
- int (*outf)(void *, mmbuffer_t *, int);
+ int (*out_hunk)(void *,
+ long old_begin, long old_nr,
+ long new_begin, long new_nr,
+ const char *func, long funclen);
+ int (*out_line)(void *, mmbuffer_t *, int);
} xdemitcb_t;
typedef long (*find_func_t)(const char *line, long line_len, char *buffer, long buffer_size, void *priv);
diff --git a/xdiff/xutils.c b/xdiff/xutils.c
index 88e5995..963e1c5 100644
--- a/xdiff/xutils.c
+++ b/xdiff/xutils.c
@@ -54,7 +54,7 @@ int xdl_emit_diffrec(char const *rec, long size, char const *pre, long psize,
mb[2].size = strlen(mb[2].ptr);
i++;
}
- if (ecb->outf(ecb->priv, mb, i) < 0) {
+ if (ecb->out_line(ecb->priv, mb, i) < 0) {
return -1;
}
@@ -344,8 +344,9 @@ int xdl_num_out(char *out, long val) {
return str - out;
}
-int xdl_emit_hunk_hdr(long s1, long c1, long s2, long c2,
- const char *func, long funclen, xdemitcb_t *ecb) {
+static int xdl_format_hunk_hdr(long s1, long c1, long s2, long c2,
+ const char *func, long funclen,
+ xdemitcb_t *ecb) {
int nb = 0;
mmbuffer_t mb;
char buf[128];
@@ -387,9 +388,21 @@ int xdl_emit_hunk_hdr(long s1, long c1, long s2, long c2,
mb.ptr = buf;
mb.size = nb;
- if (ecb->outf(ecb->priv, &mb, 1) < 0)
+ if (ecb->out_line(ecb->priv, &mb, 1) < 0)
return -1;
+ return 0;
+}
+int xdl_emit_hunk_hdr(long s1, long c1, long s2, long c2,
+ const char *func, long funclen,
+ xdemitcb_t *ecb) {
+ if (!ecb->out_hunk)
+ return xdl_format_hunk_hdr(s1, c1, s2, c2, func, funclen, ecb);
+ if (ecb->out_hunk(ecb->priv,
+ c1 ? s1 : s1 - 1, c1,
+ c2 ? s2 : s2 - 1, c2,
+ func, funclen) < 0)
+ return -1;
return 0;
}