190 lines
7.0 KiB
Plaintext
190 lines
7.0 KiB
Plaintext
hook global BufCreate .*\.(z|ba|c|k|mk)?sh(rc|_profile)? %{
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set-option buffer filetype sh
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}
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hook global WinSetOption filetype=sh %{
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require-module sh
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set-option window static_words %opt{sh_static_words}
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hook window ModeChange pop:insert:.* -group sh-trim-indent sh-trim-indent
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hook window InsertChar \n -group sh-indent sh-indent-on-new-line
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hook -once -always window WinSetOption filetype=.* %{ remove-hooks window sh-.+ }
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}
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hook -group sh-highlight global WinSetOption filetype=sh %{
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add-highlighter window/sh ref sh
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hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/sh }
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}
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provide-module sh %[
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add-highlighter shared/sh regions
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add-highlighter shared/sh/code default-region group
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add-highlighter shared/sh/double_string region %{(?<!\\)(?:\\\\)*\K"} %{(?<!\\)(?:\\\\)*"} group
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add-highlighter shared/sh/single_string region %{(?<!\\)(?:\\\\)*\K'} %{'} fill string
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add-highlighter shared/sh/expansion region '\$\{' '\}|\n' fill value
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add-highlighter shared/sh/comment region '(?<!\$)(?<!\$\{)#' '$' fill comment
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add-highlighter shared/sh/heredoc region -match-capture '<<-?\h*''?(\w+)''?' '^\t*(\w+)$' fill string
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add-highlighter shared/sh/double_string/fill fill string
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evaluate-commands %sh{
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# Grammar
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# Generated with `compgen -k` in bash
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keywords="if then else elif fi case esac for select while until do done in
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function time coproc"
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# Generated with `compgen -b` in bash
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builtins="alias bg bind break builtin caller cd command compgen complete
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compopt continue declare dirs disown echo enable eval exec
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exit export false fc fg getopts hash help history jobs kill
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let local logout mapfile popd printf pushd pwd read readarray
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readonly return set shift shopt source suspend test times trap
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true type typeset ulimit umask unalias unset wait"
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join() { sep=$2; eval set -- $1; IFS="$sep"; echo "$*"; }
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# Add the language's grammar to the static completion list
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printf %s\\n "declare-option str-list sh_static_words $(join "${keywords}" ' ') $(join "${builtins}" ' ')"
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# Highlight keywords
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printf %s\\n "add-highlighter shared/sh/code/ regex (?<!-)\b($(join "${keywords}" '|'))\b(?!-) 0:keyword"
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# Highlight builtins
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printf %s "add-highlighter shared/sh/code/builtin regex (?<!-)\b($(join "${builtins}" '|'))\b(?!-) 0:builtin"
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}
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add-highlighter shared/sh/code/operators regex [\[\]\(\)&|]{1,2} 0:operator
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add-highlighter shared/sh/code/variable regex ((?<![-:])\b\w+)= 1:variable
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add-highlighter shared/sh/code/alias regex \balias(\h+[-+]\w)*\h+([\w-.]+)= 2:variable
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add-highlighter shared/sh/code/function regex ^\h*(\S+)\h*\(\) 1:function
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add-highlighter shared/sh/code/unscoped_expansion regex \$(\w+|#|@|\?|\$|!|-|\*) 0:value
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add-highlighter shared/sh/double_string/expansion regex \$(\w+|\{.+?\}) 0:value
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# Commands
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# ‾‾‾‾‾‾‾‾
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define-command -hidden sh-trim-indent %{
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# remove trailing white spaces
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try %{ execute-keys -draft -itersel <a-x> s \h+$ <ret> d }
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}
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# This is at best an approximation, since shell syntax is very complex.
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# Also note that this targets plain sh syntax, not bash - bash adds a whole
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# other level of complexity. If your bash code is fairly portable this will
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# probably work.
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#
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# Of necessity, this is also fairly opinionated about indentation styles.
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# Doing it "properly" would require far more context awareness than we can
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# bring to this kind of thing.
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define-command -hidden sh-indent-on-new-line %[
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evaluate-commands -draft -itersel %[
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# copy '#' comment prefix and following white spaces
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try %{ execute-keys -draft k <a-x> s ^\h*\K#\h* <ret> y gh j P }
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# preserve previous line indent
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try %{ execute-keys -draft <semicolon> K <a-&> }
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# filter previous line
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try %{ execute-keys -draft k : sh-trim-indent <ret> }
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# Indent loop syntax, e.g.:
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# for foo in bar; do
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# things
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# done
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#
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# or:
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#
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# while foo; do
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# things
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# done
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#
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# or equivalently:
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#
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# while foo
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# do
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# things
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# done
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#
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# indent after do
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try %{ execute-keys -draft <space> k <a-x> <a-k> do$ <ret> j <a-gt> }
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# deindent after done
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try %{ execute-keys -draft <space> k <a-x> <a-k> done$ <ret> K <a-&> j <a-lt> j K <a-&> }
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# Indent if/then/else syntax, e.g.:
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# if [ $foo = $bar ]; then
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# things
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# else
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# other_things
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# fi
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#
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# or equivalently:
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# if [ $foo = $bar ]
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# then
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# things
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# else
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# other_things
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# fi
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#
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# indent after then
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try %{ execute-keys -draft <space> k <a-x> <a-k> then$ <ret> j <a-gt> }
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# deindent after fi
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try %{ execute-keys -draft <space> k <a-x> <a-k> fi$ <ret> <a-lt> j K <a-&> }
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# deindent and reindent after else - deindent the else, then back
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# down and return to the previous indent level.
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try %{ execute-keys -draft <space> k <a-x> <a-k> else$ <ret> <a-lt> j }
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# Indent case syntax, e.g.:
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# case "$foo" in
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# bar) thing1;;
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# baz)
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# things
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# ;;
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# *)
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# default_things
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# ;;
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# esac
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#
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# or equivalently:
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# case "$foo"
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# in
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# bar) thing1;;
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# esac
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#
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# indent after in
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try %{ execute-keys -draft <space> k <a-x> <a-k> in$ <ret> j <a-gt> }
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# deindent after esac
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try %{ execute-keys -draft <space> k <a-x> <a-k> esac$ <ret> <a-lt> j K <a-&> }
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# indent after )
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try %{ execute-keys -draft <space> k <a-x> <a-k> ^\s*\(?[^(]+[^)]\)$ <ret> j <a-gt> }
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# deindent after ;;
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try %{ execute-keys -draft <space> k <a-x> <a-k> ^\s*\;\;$ <ret> j <a-lt> }
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# Indent compound commands as logical blocks, e.g.:
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# {
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# thing1
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# thing2
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# }
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#
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# or in a function definition:
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# foo () {
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# thing1
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# thing2
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# }
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#
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# We don't handle () delimited compond commands - these are technically very
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# similar, but the use cases are quite different and much less common.
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#
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# Note that in this context the '{' and '}' characters are reserved
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# words, and hence must be surrounded by a token separator - typically
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# white space (including a newline), though technically it can also be
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# ';'. Only vertical white space makes sense in this context, though,
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# since the syntax denotes a logical block, not a simple compound command.
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try %= execute-keys -draft <space> k <a-x> <a-k> (\s|^)\{$ <ret> j <a-gt> =
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# deindent closing }
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try %= execute-keys -draft <space> k <a-x> <a-k> ^\s*\}$ <ret> <a-lt> j K <a-&> =
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]
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]
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]
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