patch 8.2.5123: using invalid index when looking for spell suggestions
Problem: Using invalid index when looking for spell suggestions.
Solution: Do not decrement the index when it is zero.
diff --git a/src/spellsuggest.c b/src/spellsuggest.c
index 5b460a3..8f97565 100644
--- a/src/spellsuggest.c
+++ b/src/spellsuggest.c
@@ -1973,7 +1973,8 @@
sp->ts_isdiff = (newscore != 0)
? DIFF_YES : DIFF_NONE;
}
- else if (sp->ts_isdiff == DIFF_INSERT)
+ else if (sp->ts_isdiff == DIFF_INSERT
+ && sp->ts_fidx > 0)
// When inserting trail bytes don't advance in the
// bad word.
--sp->ts_fidx;
diff --git a/src/testdir/test_spell.vim b/src/testdir/test_spell.vim
index aa57444..0fd5ed9 100644
--- a/src/testdir/test_spell.vim
+++ b/src/testdir/test_spell.vim
@@ -70,6 +70,16 @@
bwipe!
endfunc
+func Test_z_equal_on_single_character()
+ " this was decrementing the index below zero
+ new
+ norm a0\Ê
+ norm zW
+ norm z=
+
+ bwipe!
+endfunc
+
" Test spellbadword() with argument
func Test_spellbadword()
set spell
diff --git a/src/version.c b/src/version.c
index 5411e1c..0a42274 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 5123,
+/**/
5122,
/**/
5121,