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[sh] Separate keywords and builtins; fix variables

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Previously, the keywords were a mess. They contained the shell’s
reserved words and some arbitrarily selected builtins. I generated
the word list using bash because it contains all POSIX builtins and
is common for scripting.

In variable assignments some characters that are allowed to be in
variables used to not be highlighted, e.g. hyphens. With this commit
all characters except whitespace are considered to be part of the
variable.
This commit is contained in:
Lennard 2020-01-12 10:35:56 +00:00 committed by Lennard Hofmann
parent b85365bff8
commit a8bbdc71d9
1 changed files with 24 additions and 6 deletions
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30
rc/filetype/sh.kak
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@ -30,11 +30,9 @@ add-highlighter shared/sh/double_string/fill fill string
evaluate-commands %sh{
# Grammar
keywords="alias bind builtin caller case cd command coproc declare do done
echo elif else enable esac exit fi for function help
if in let local logout mapfile printf read readarray
readonly return select set shift source test then
time type typeset ulimit unalias until while break continue"
# Generated with `compgen -k` in bash
keywords="if then else elif fi case esac for select while until do done in
function time coproc"
join() { sep=$2; eval set -- $1; IFS="$sep"; echo "$*"; }
@ -43,10 +41,30 @@ evaluate-commands %sh{
# Highlight keywords
printf %s "add-highlighter shared/sh/code/ regex \b($(join "${keywords}" '|'))\b 0:keyword"
}
# For some reasons this needs to be in its own %sh block
evaluate-commands %sh{
# Generated with `compgen -b` in bash
builtins="alias bg bind break builtin caller cd command compgen complete
compopt continue declare dirs disown echo enable eval exec
exit export false fc fg getopts hash help history jobs kill
let local logout mapfile popd printf pushd pwd read readarray
readonly return set shift shopt source suspend test times trap
true type typeset ulimit umask unalias unset wait"
join() { sep=$2; eval set -- $1; IFS="$sep"; echo "$*"; }
# Add the language's grammar to the static completion list
printf %s\\n "set-option -add global sh_static_words $(join "${builtins}" ' ')"
# Highlight builtins
printf %s "add-highlighter shared/sh/code/builtin regex \b($(join "${builtins}" '|'))\b 0:builtin"
}
add-highlighter shared/sh/code/operators regex [\[\]\(\)&|]{1,2} 0:operator
add-highlighter shared/sh/code/variable regex (\w+)= 1:variable
add-highlighter shared/sh/code/variable regex (\S+)= 1:variable
add-highlighter shared/sh/code/function regex ^\h*(\w+)\h*\(\) 1:function
add-highlighter shared/sh/code/unscoped_expansion regex \$(\w+|#|@|\?|\$|!|-|\*) 0:value