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vim-patch:8.1.0502: internal diff fails when diffing a context diff

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Problem:    Internal diff fails when diffing a context diff. (Hirohito Higashi)
Solution:   Only use callback calls with one line. (closes #3581)

f080d70a82
This commit is contained in:
Anatolii Sakhnik
2018-12-09 20:13:34 +02:00
parent 8f20c22e10
commit 89eba72792
1 changed files with 14 additions and 12 deletions
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26
src/nvim/diff.c
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@@ -3103,20 +3103,22 @@ static int parse_diff_unified(char_u *line,
static int xdiff_out(void *priv, mmbuffer_t *mb, int nbuf)
{
diffout_T *dout = (diffout_T *)priv;
int i;
char_u *p;
for (i = 0; i < nbuf; i++) {
// We are only interested in the header lines, skip text lines.
if (STRNCMP(mb[i].ptr, "@@ ", 3) != 0) {
continue;
}
ga_grow(&dout->dout_ga, 1);
p = vim_strnsave((char_u *)mb[i].ptr, mb[i].size);
if (p == NULL) {
return -1;
}
((char_u **)dout->dout_ga.ga_data)[dout->dout_ga.ga_len++] = p;
// The header line always comes by itself, text lines in at least two
// parts. We drop the text part.
if (nbuf > 1) {
return 0;
}
// sanity check
if (STRNCMP(mb[0].ptr, "@@ ", 3) != 0) {
return 0;
}
ga_grow(&dout->dout_ga, 1);
p = vim_strnsave((char_u *)mb[0].ptr, mb[0].size);
((char_u **)dout->dout_ga.ga_data)[dout->dout_ga.ga_len++] = p;
return 0;
}