Code like ${!#} flags the "#" as shDerefWordError [1]; the "!prefix"
syntax region delegates to one of the shDerefSpecial handlers via
@shDerefList, but it misses the "#" case as valid for ${##} and ${!#}.
[1]: https://vi.stackexchange.com/q/48617/10604
Correct that. Indirection is only valid in Bash in Ksh, so rearrange the
"!" handling to be conditional.
closes: #20016
Helped-by: Christian Brabandt <cb@256bit.org>
Signed-off-by: D. Ben Knoble <ben.knoble+github@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Request less backtracking to function-name candidates for
nonlinear patterns with any regexp engine BUT force using
the old engine with these patterns to avoid incurring an
additional penalty, according to ":syntime report", when the
new regexp engine is preferred.
fixes: #19847closes: #19849
Signed-off-by: Aliaksei Budavei <0x000c70@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
- Highlight keywords "function" and "namespace" with
the "Keyword" group ("shFunctionKey").
- Highlight function body delimiters "{" and "}" with the
"Delimiter" group ("shFunctionExprRegion").
- Highlight function body delimiters "(" and ")" with the
"Operator" group ("shFunctionSubShRegion").
- Also, follow one style in folding all supported variants
of function bodies for grouping commands too by enclosing
a delimited function body, e.g. "{" and "}", in a fold and
leaving its function header, e.g. "function f()", out of
it when the header is written on a separate line.
To restore previous colouring, add to "after/syntax/sh.vim":
------------------------------------------------------------
hi link shFunctionKey Function
hi link shFunctionExprRegion Function
hi link shFunctionSubShRegion Function
------------------------------------------------------------
fixes: https://github.com/vim/vim/pull/19638#issuecomment-4052635546closes: #19638
Signed-off-by: Aliaksei Budavei <0x000c70@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Remove `nextgroup=shComment` from the `shEscape` syntax pattern.
This was causing `#` characters after escape sequences inside
double-quoted strings to be misinterpreted as comments, breaking
highlighting for the rest of the file.
Add a test case for escaped characters followed by # in double quotes.
fixes: #19053closes: #19414
Signed-off-by: Bozhidar Batsov <bozhidar@batsov.dev>
Signed-off-by: Christian Brabandt <cb@256bit.org>
- Amend syntax highlighting to allow for ksh93 discipline function names
(e.g. 'foo.get()') and mksh's odd function naming idiosyncrasies
(shNamespaceOne was introduced to enforce stricter naming rules for
ksh93 namespaces).
- Remove 'bind' from ksh93 syntax (such a builtin has never been
implemented in ksh93).
- 'xgrep' is only available in ksh93v- as an alternative way to
invoke the builtin 'grep -X', so reflect that in the syntax
highlighting.
- Forbid bash-style 'function name() {' syntax when highlighting
ksh88 and ksh93 scripts.
- Fix bug causing ' ()' to be incorrectly validated in mksh scripts.
- Add the many ksh93/ksh2020 .sh.* variables to the list of special
variables.
- Amend iskeyword to allow '.' so that '.sh.tilde.get' and such are
valid function names/variable names. (For mksh functions starting
with odd characters like '%' and '@' this would probably have too
many bad side effects, so I've omitted such a change for that shell.)
- Add new syntax tests and regenerate syntax dump files
closes: #19383
Signed-off-by: Johnothan King <johnothanking@protonmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
- unified bashStatement, kshStatement and shStatement as much as
possible
- separated builtin commands from external programs
- cleaned up kornshell flavor logic
- fixed alias syntax highlighting
- added test for bash alias syntax highlighting
- removed daemon keyword
closes: #18355
Signed-off-by: Bjoern Foersterling <bjoern.foersterling@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
bash 5.3 (released July 2025) added support for ${ cmd;} and
${|cmd;} style command substitution, which is similar (but not
identical) to ksh/mksh.
closes: #18084
Signed-off-by: Kevin Pulo <kevin.pulo@mongodb.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
- Fixed syntax highlighting for ksh93 namespace variables starting
with '${.'
- Added support for the alarm, eloop, fds, mkservice, pids, poll and
sha2sum builtins (which are indeed ksh93 builtins, albeit whether or
not they are available depends on the ksh release and the compiled
SHOPT options).
- Added support for the many Unix commands provided by ksh93's libcmd
as builtin commands (since these are general commands, scripts for
other shells like bash will also highlight these).
- The dumps for the sh_0{2,5,6,8,9}.sh were recreated due to this
change affecting commands those scripts call (e.g. 'wc').
- Enabled ${parameter/pattern/string} and friends for ksh syntax.
- Enabled case modification for ksh. See also:
https://github.com/ksh93/ksh/commit/c1762e03
- Enabled ;;& support for ksh. See also:
https://github.com/ksh93/ksh/commit/fc89d20a
- Added many special ksh variables using 93u+m's data/variables.c
as a reference.
If vim can't figure out which ksh release is in play using e.g.
the hashbang path, in such a case a generic default that enables
everything and the kitchen sink will be used. Otherwise, features will
be disabled if it's absolutely known a certain feature will not be
present. Examples:
- ERRNO is ksh88 specific, so that is locked to ksh88.
- Only 93u+m (assumed for generic) has SRANDOM, and only 93u+m
and 93v- have case modification support.
- 93u+ and 93v- have VPATH and CSWIDTH variables (the latter
is vestigal, but still present in the hardcoded variable table).
- 93v- and ksh2020 have (buggy and near unusable) implementations
of compgen and complete.
- Only mksh provides function substitutions, i.e. ${|command;}.
This took the better part of my day to implement. It seems to work well
enough though. (Also had to regenerate the dumps again while testing
it, as now there are dup scripts with mere hashbang differences, used
solely for testing syntax highlighting differences.)
closes: #17348
Signed-off-by: Johnothan King <johnothanking@protonmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
- Default to POSIX supported classes.
- Add a KornShell specific class list.
- Remove "or" from the Bash class list, presumably a typo.
closes: #17293
Signed-off-by: Christian Brabandt <cb@256bit.org>
Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Ignore single-quoted backslash escape sequences in parameter expansions.
\' is not an escaped single quote in ${foo:-'word\'}.
closes: #17261
Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Also, do not set g:is_kornshell when g:is_posix is set. BSD shells are
POSIX but many are derived from the ash shell.
closes: #16939
Signed-off-by: Mohamed Akram <mohd.akram@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Allow the opening parenthesis of a multiline array assignment, within an
if statement, to appear at EOL.
Fixes issue #962.
Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit adds support for ksh93 shared-state command
substitutions (syntax: ${ command; }) and mksh's value
substitutions (syntax: ${|command;}) in the sh syntax script.
Also add a syntax test for ksh subshares with dumps included
to make sure it doesn't regress.
fixes: #9514
Signed-off-by: Johnothan King <johnothanking@protonmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Add shDerefOffset to shDerefVarArray.
Example code:
```bash
declare -a a=({a..z})
echo "${a[@]:1:3}"
```
Signed-off-by: Christian Brabandt <cb@256bit.org>
add shDblParen to shLoopList to correctly highlight
arithmetic expressions for Bash and Ksh
This should allow code such as:
```bash
declare -i i j
for i in foo bar
do ((j = 1 << j))
done
```
Signed-off-by: Lucien Grondin <grondilu@yahoo.fr>
Signed-off-by: Christian Brabandt <cb@256bit.org>
D. Ben Knoble