patch 8.2.2121: internal error when using \ze before \zs in a pattern
Problem: Internal error when using \ze before \zs in a pattern.
Solution: Check the end is never before the start. (closes #7442)
diff --git a/src/testdir/test_regexp_latin.vim b/src/testdir/test_regexp_latin.vim
index d1885ab..0b00244 100644
--- a/src/testdir/test_regexp_latin.vim
+++ b/src/testdir/test_regexp_latin.vim
@@ -911,6 +911,13 @@
bwipe!
endfunc
+func Test_ze_before_zs()
+ call assert_equal('', matchstr(' ', '\%#=1\ze \zs'))
+ call assert_equal('', matchstr(' ', '\%#=2\ze \zs'))
+ call assert_equal(repeat([''], 10), matchlist(' ', '\%#=1\ze \zs'))
+ call assert_equal(repeat([''], 10), matchlist(' ', '\%#=2\ze \zs'))
+endfunc
+
" Check for detecting error
func Test_regexp_error()
call assert_fails("call matchlist('x x', '\\%#=1 \\zs*')", 'E888:')