kakoune/rc/base/fish.kak
2018-12-11 00:35:57 +01:00

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# http://fishshell.com
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*[.](fish) %{
set-option buffer filetype fish
}
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/fish regions
add-highlighter shared/fish/code default-region group
add-highlighter shared/fish/double_string region '"' (?<!\\)(\\\\)*" group
add-highlighter shared/fish/single_string region "'" "'" fill string
add-highlighter shared/fish/comment region '#' '$' fill comment
add-highlighter shared/fish/double_string/ fill string
add-highlighter shared/fish/double_string/ regex (\$\w+)|(\{\$\w+\}) 0:variable
add-highlighter shared/fish/code/ regex (\$\w+)|(\{\$\w+\}) 0:variable
# Command names are collected using `builtin --names` and 'eval' from `functions --names`
add-highlighter shared/fish/code/ regex \b(and|begin|bg|bind|block|break|breakpoint|builtin|case|cd|command|commandline|complete|contains|continue|count|echo|else|emit|end|eval|exec|exit|fg|for|function|functions|history|if|jobs|not|or|printf|pwd|random|read|return|set|set_color|source|status|switch|test|ulimit|while)\b 0:keyword
# Commands
# ‾‾‾‾‾‾‾‾
define-command -hidden fish-filter-around-selections %{
evaluate-commands -no-hooks -draft -itersel %{
# remove trailing white spaces
try %{ execute-keys -draft <a-x>s\h+$<ret>d }
}
}
define-command -hidden fish-indent-on-char %{
evaluate-commands -no-hooks -draft -itersel %{
# align middle and end structures to start and indent when necessary
try %{ execute-keys -draft <a-x><a-k>^\h*(else)$<ret><a-\;><a-?>^\h*(if)<ret>s\A|\z<ret>)<a-&> }
try %{ execute-keys -draft <a-x><a-k>^\h*(end)$<ret><a-\;><a-?>^\h*(begin|for|function|if|switch|while)<ret>s\A|\z<ret>)<a-&> }
try %{ execute-keys -draft <a-x><a-k>^\h*(case)$<ret><a-\;><a-?>^\h*(switch)<ret>s\A|\z<ret>)<a-&>)<space><a-gt> }
}
}
define-command -hidden fish-indent-on-new-line %{
evaluate-commands -no-hooks -draft -itersel %{
# preserve previous line indent
try %{ execute-keys -draft <space>K<a-&> }
# filter previous line
try %{ execute-keys -draft k:fish-filter-around-selections<ret> }
# indent after start structure
try %{ execute-keys -draft k<a-x><a-k>^\h*(begin|case|else|for|function|if|switch|while)\b<ret>j<a-gt> }
}
}
define-command -hidden fish-insert-on-new-line %{
evaluate-commands -no-hooks -draft -itersel %{
# copy _#_ comment prefix and following white spaces
try %{ execute-keys -draft k<a-x>s^\h*\K#\h*<ret>yjp }
# wisely add end structure
evaluate-commands -save-regs x %{
try %{ execute-keys -draft k<a-x>s^\h+<ret>"xy } catch %{ reg x '' }
try %{ execute-keys -draft k<a-x><a-k>^<c-r>x(begin|for|function|if|switch|while)<ret>j<a-a>iX<a-\;>K<a-K>^<c-r>x(begin|for|function|if|switch|while).*\n<c-r>xend$<ret>jxypjaend<esc><a-lt> }
}
}
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook -group fish-highlight global WinSetOption filetype=fish %{
add-highlighter window/fish ref fish
hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/fish }
}
hook global WinSetOption filetype=fish %{
hook window InsertChar .* -group fish-indent fish-indent-on-char
hook window InsertChar \n -group fish-insert fish-insert-on-new-line
hook window InsertChar \n -group fish-indent fish-indent-on-new-line
hook -once -always window WinSetOption filetype=.* %{ remove-hooks window fish-.+ }
}