patch 9.0.0457: substitute prompt does not highlight an empty match
Problem: Substitute prompt does not highlight an empty match.
Solution: Highlight at least one character.
diff --git a/src/testdir/test_substitute.vim b/src/testdir/test_substitute.vim
index df01e06..92e86a9 100644
--- a/src/testdir/test_substitute.vim
+++ b/src/testdir/test_substitute.vim
@@ -2,6 +2,7 @@
source shared.vim
source check.vim
+source screendump.vim
func Test_multiline_subst()
enew!
@@ -684,6 +685,21 @@
bw!
endfunc
+func Test_sub_highlight_zero_match()
+ CheckRunVimInTerminal
+
+ let lines =<< trim END
+ call setline(1, ['one', 'two', 'three'])
+ END
+ call writefile(lines, 'XscriptSubHighlight', 'D')
+ let buf = RunVimInTerminal('-S XscriptSubHighlight', #{rows: 8, cols: 60})
+ call term_sendkeys(buf, ":%s/^/ /c\<CR>")
+ call VerifyScreenDump(buf, 'Test_sub_highlight_zer_match_1', {})
+
+ call term_sendkeys(buf, "\<Esc>")
+ call StopVimInTerminal(buf)
+endfunc
+
func Test_nocatch_sub_failure_handling()
" normal error results in all replacements
func Foo()