diff runtime/doc/options.txt @ 33521:1f9b1def80c8 v9.0.2009

patch 9.0.2009: cmdline-completion for comma-separated options wrong Commit: https://github.com/vim/vim/commit/54844857fd6933fa4f6678e47610c4b9c9f7a091 Author: Yee Cheng Chin <ychin.git@gmail.com> Date: Mon Oct 9 18:12:31 2023 +0200 patch 9.0.2009: cmdline-completion for comma-separated options wrong Problem: cmdline-completion for comma-separated options wrong Solution: Fix command-line expansions for options with filenames with commas Fix command-line expansions for options with filenames with commas Cmdline expansion for option values that take a comma-separated list of file names is currently not handling file names with commas as the commas are not escaped. For such options, the commas in file names need to be escaped (to differentiate from a comma that delimit the list items). The escaped comma is unescaped in `copy_option_part()` during option parsing. Fix as follows: - Cmdline completion for option values with comma-separated file/folder names will not start a new match when seeing `\\,` and will instead consider it as one value. - File/folder regex matching will strip the `\\` when seeing `\\,` to make sure it can match the correct files/folders. - The expanded value will escape `,` with `\\,`, similar to how spaces are escaped to make sure the option value is correct on the cmdline. This fix also takes into account the fact that Win32 Vim handles file name escaping differently. Typing '\,' for a file name results in it being handled literally but in other platforms '\,' is interpreted as a simple ',' and commas need to be escaped using '\\,' instead. Also, make sure this new logic only applies to comma-separated options like 'path'. Non-list options like 'set makeprg=<Tab>' and regular ex commands like `:edit <Tab>` do not require escaping and will continue to work. Also fix up documentation to be clearer. The original docs are slightly misleading in how it discusses triple slashes for 'tags'. closes: #13303 related: #13301 Signed-off-by: Christian Brabandt <cb@256bit.org> Co-authored-by: Yee Cheng Chin <ychin.git@gmail.com>
author Christian Brabandt <cb@256bit.org>
date Mon, 09 Oct 2023 18:30:04 +0200
parents 6da0f8fc3046
children c1e81b86082c
line wrap: on
line diff
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -192,10 +192,27 @@ To include white space in a string optio
 backslash.  To include a backslash you have to use two.  Effectively this
 means that the number of backslashes in an option value is halved (rounded
 down).
+In options 'path', 'cdpath', and 'tags', spaces have to be preceded with three
+backslashes instead for compatibility with version 3.0 where the options can
+be separated by either commas or spaces.
+Comma-separated options like 'backupdir' and 'tags' will also require commas
+to be escaped with two backslashes, whereas this is not needed for
+non-comma-separated ones like 'makeprg'.
+When setting options using |:let| and |literal-string|, you need to use one
+fewer layer of backslash.
 A few examples: >
-   :set tags=tags\ /usr/tags	    results in "tags /usr/tags"
-   :set tags=tags\\,file	    results in "tags\,file"
-   :set tags=tags\\\ file	    results in "tags\ file"
+   :set makeprg=make\ file	    results in "make file"
+   :let &makeprg='make file'	    (same as above)
+   :set makeprg=make\\\ file	    results in "make\ file"
+   :set tags=tags\ /usr/tags	    results in "tags" and "/usr/tags"
+   :set tags=tags\\\ file	    results in "tags file"
+   :let &tags='tags\ file'	    (same as above)
+
+   :set makeprg=make,file	    results in "make,file"
+   :set makeprg=make\\,file	    results in "make\,file"
+   :set tags=tags,file		    results in "tags" and "file"
+   :set tags=tags\\,file	    results in "tags,file"
+   :let &tags='tags\,file'	    (same as above)
 
 The "|" character separates a ":set" command from a following command.  To
 include the "|" in the option value, use "\|" instead.  This example sets the
@@ -8213,8 +8230,8 @@ A jump table for the options with a shor
 				|+emacs_tags|: "./tags,./TAGS,tags,TAGS")
 			global or local to buffer |global-local|
 	Filenames for the tag command, separated by spaces or commas.  To
-	include a space or comma in a file name, precede it with a backslash
-	(see |option-backslash| about including spaces and backslashes).
+	include a space or comma in a file name, precede it with backslashes
+	(see |option-backslash| about including spaces/commas and backslashes).
 	When a file name starts with "./", the '.' is replaced with the path
 	of the current file.  But only when the 'd' flag is not included in
 	'cpoptions'.  Environment variables are expanded |:set_env|.  Also see