patch 9.1.1341: cannot define completion triggers
Problem: Cannot define completion triggers and act upon it
Solution: add the new option 'isexpand' and add the complete_match()
function to return the completion matches according to the
'isexpand' setting (glepnir)
Currently, completion trigger position is determined solely by the
'iskeyword' pattern (\k\+$), which causes issues when users need
different completion behaviors - such as triggering after '/' for
comments or '.' for methods. Modifying 'iskeyword' to include these
characters has undesirable side effects on other Vim functionality that
relies on keyword definitions.
Introduce a new buffer-local option 'isexpand' that allows specifying
different completion triggers and add the complete_match() function that
finds the appropriate start column for completion based on these
triggers, scanning backwards from cursor position.
This separation of concerns allows customized completion behavior
without affecting iskeyword-dependent features. The option's
buffer-local nature enables per-filetype completion triggers.
closes: #16716
Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/gen_opt_test.vim b/src/testdir/gen_opt_test.vim
index a087629..3d798e9 100644
--- a/src/testdir/gen_opt_test.vim
+++ b/src/testdir/gen_opt_test.vim
@@ -229,6 +229,7 @@
\ 'imactivatekey': [['', 'S-space'], ['xxx']],
\ 'isfname': [['', '@', '@,48-52'], ['xxx', '@48']],
\ 'isident': [['', '@', '@,48-52'], ['xxx', '@48']],
+ \ 'isexpand': [['', '.,->', '/,/*,\\,'], [',,', '\\,,']],
\ 'iskeyword': [['', '@', '@,48-52'], ['xxx', '@48']],
\ 'isprint': [['', '@', '@,48-52'], ['xxx', '@48']],
\ 'jumpoptions': [['', 'stack'], ['xxx']],