runtime(dosbatch): Add syn-sync to syntax file
Closing parentheses were often highlighted as errors.
Add a syntax sync command to reduce the error.
Also fix that `defined` was not highlighted as an operator inside
parentheses. E.g.:
```
if defined foo (
if defined bar (
...
)
)
```
The first `defined` was highlighted but the second one was not.
related: #15453
Signed-off-by: Ken Takata <kentkt@csc.jp>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/syntax/dosbatch.vim b/runtime/syntax/dosbatch.vim
index 5560199..761fac0 100644
--- a/runtime/syntax/dosbatch.vim
+++ b/runtime/syntax/dosbatch.vim
@@ -3,6 +3,7 @@
" Maintainer: Mike Williams <mrmrdubya@gmail.com>
" Filenames: *.bat
" Last Change: 3rd February 2024
+" 2024 Aug 14 by Vim Project: improve syntax (#15453)
"
" Options Flags:
" dosbatch_cmdextversion - 1 = Windows NT, 2 = Windows 2000 [default]
@@ -45,7 +46,7 @@
syn match dosbatchEchoOperator "\<echo\s\+\(on\|off\)\s*$"lc=4
" For embedded commands
-syn match dosbatchCmd "(\s*'[^']*'"lc=1 contains=dosbatchString,dosbatchVariable,dosBatchArgument,@dosbatchNumber,dosbatchImplicit,dosbatchStatement,dosbatchConditional,dosbatchRepeat,dosbatchOperator
+syn match dosbatchCmd "(\s*'[^']*'"lc=1 contains=dosbatchString,dosbatchVariable,dosBatchArgument,@dosbatchNumber,dosbatchImplicit,dosbatchStatement,dosbatchConditional,dosbatchRepeat,dosbatchOperator,dosbatchIfOperator
" Numbers - surround with ws to not include in dir and filenames
syn match dosbatchInteger "[[:space:]=(/:,!~-]\d\+"lc=1
@@ -102,9 +103,11 @@
syn match dosbatchColonCommentErr contained "\s*:\s*:.*$"
endif
syn match dosbatchColonCommentErr contained "\s*:\s*:[^)]*\(\(\n\s*\)\?)\)\@="
-syn region dosbatchCodeBlock transparent start=+(+ end=+)+ contains=dosbatchString,dosbatchVariable,dosBatchArgument,@dosbatchNumber,dosbatchImplicit,dosbatchStatement,dosbatchConditional,dosbatchRepeat,dosbatchOperator,@dosbatchCodeBlockComment,dosbatchColonCommentErr,dosbatchCodeBlock
+syn region dosbatchCodeBlock transparent start=+(+ end=+)+ contains=dosbatchString,dosbatchVariable,dosBatchArgument,@dosbatchNumber,dosbatchImplicit,dosbatchStatement,dosbatchConditional,dosbatchRepeat,dosbatchOperator,dosbatchIfOperator,@dosbatchCodeBlockComment,dosbatchColonCommentErr,dosbatchCodeBlock
syn match dosbatchCodeBlockErr ")"
+syn sync match dosbatchSyncCodeBlock grouphere NONE "^)\s*$"
+
syn keyword dosbatchImplicit append assoc at attrib break cacls cd chcp chdir
syn keyword dosbatchImplicit chkdsk chkntfs cls cmd color comp compact convert copy
syn keyword dosbatchImplicit date del dir diskcomp diskcopy doskey echo endlocal