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patch 8.1.1603: crash when using unknown highlighting in text property

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Problem:    Crash when using unknown highlighting in text property.
Solution:   Check for zero highlight ID.
This commit is contained in:
Bram Moolenaar
2019-06-28 21:38:00 +02:00
parent 711d02c96d
commit d74af4227b
3 changed files with 15 additions and 2 deletions
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4
src/screen.c
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@@ -3171,7 +3171,7 @@ win_line(
int row; /* row in the window, excl w_winrow */
int screen_row; /* row on the screen, incl w_winrow */
char_u extra[18]; /* "%ld" and 'fdc' must fit in here */
char_u extra[20]; /* "%ld" and 'fdc' must fit in here */
int n_extra = 0; /* number of extra chars */
char_u *p_extra = NULL; /* string of extra chars, plus NUL */
char_u *p_extra_free = NULL; /* p_extra needs to be freed */
@@ -4440,7 +4440,7 @@ win_line(
proptype_T *pt = text_prop_type_by_id(
wp->w_buffer, text_props[tpi].tp_type);
if (pt != NULL)
if (pt != NULL && pt->pt_hl_id > 0)
{
int pt_attr = syn_id2attr(pt->pt_hl_id);