mirror of
https://github.com/mawww/kakoune.git
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78a0b5e4c7
Current solution makes it difficult to use common Lua practices of having one-liner if statements and using anonymous functions. New solution prevents auto-indentation and end insertion, if the previous line contains an "end" keyword. It does not attempt to match each structure with corresponding end, since using multiple end keywords in single line is a very rare occurance in Lua.
127 lines
5.4 KiB
Plaintext
127 lines
5.4 KiB
Plaintext
# http://lua.org
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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# Detection
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# ‾‾‾‾‾‾‾‾‾
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hook global BufCreate .*[.](lua) %{
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set-option buffer filetype lua
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}
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# Initialization
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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hook global WinSetOption filetype=lua %{
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require-module lua
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hook window ModeChange pop:insert:.* -group lua-trim-indent lua-trim-indent
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hook window InsertChar .* -group lua-indent lua-indent-on-char
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hook window InsertChar \n -group lua-indent lua-indent-on-new-line
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hook window InsertChar \n -group lua-insert lua-insert-on-new-line
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alias window alt lua-alternative-file
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hook -once -always window WinSetOption filetype=.* %{
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remove-hooks window lua-.+
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unalias window alt lua-alternative-file
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}
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}
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hook -group lua-highlight global WinSetOption filetype=lua %{
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add-highlighter window/lua ref lua
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hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/lua }
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}
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provide-module lua %[
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# Highlighters
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# ‾‾‾‾‾‾‾‾‾‾‾‾
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add-highlighter shared/lua regions
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add-highlighter shared/lua/code default-region group
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add-highlighter shared/lua/raw_string region -match-capture '\[(=*)\[' '\](=*)\]' fill string
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add-highlighter shared/lua/raw_comment region -match-capture '--\[(=*)\[' '\](=*)\]' fill comment
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add-highlighter shared/lua/double_string region '"' (?<!\\)(?:\\\\)*" fill string
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add-highlighter shared/lua/single_string region "'" (?<!\\)(?:\\\\)*' fill string
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add-highlighter shared/lua/comment region '--' $ fill comment
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add-highlighter shared/lua/code/keyword regex \b(and|break|do|else|elseif|end|for|function|goto|if|in|not|or|repeat|return|then|until|while)\b 0:keyword
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add-highlighter shared/lua/code/value regex \b(false|nil|true|[0-9]+(:?\.[0-9])?(:?[eE]-?[0-9]+)?|0x[0-9a-fA-F])\b 0:value
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add-highlighter shared/lua/code/operator regex (\+|-|\*|/|%|\^|==?|~=|<=?|>=?|\.\.|\.\.\.|#) 0:operator
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add-highlighter shared/lua/code/builtin regex \b(_G|_E)\b 0:builtin
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add-highlighter shared/lua/code/module regex \b(_G|_E)\b 0:module
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add-highlighter shared/lua/code/attribute regex \b(local)\b 0:attribute
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add-highlighter shared/lua/code/function_declaration regex \b(?:function\h+)(?:\w+\h*\.\h*)*([a-zA-Z_]\w*)\( 1:function
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add-highlighter shared/lua/code/function_call regex \b([a-zA-Z_]\w*)\h*(?=[\(\{]) 1:function
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# Commands
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# ‾‾‾‾‾‾‾‾
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define-command lua-alternative-file -docstring 'Jump to the alternate file (implementation ↔ test)' %{ evaluate-commands %sh{
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case $kak_buffile in
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*spec/*_spec.lua)
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altfile=$(eval printf %s\\n $(printf %s\\n $kak_buffile | sed s+spec/+'*'/+';'s/_spec//))
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[ ! -f $altfile ] && echo "fail 'implementation file not found'" && exit
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;;
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*.lua)
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altfile=""
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altdir=""
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path=$kak_buffile
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dirs=$(while [ $path ]; do printf %s\\n $path; path=${path%/*}; done | tail -n +2)
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for dir in $dirs; do
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altdir=$dir/spec
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if [ -d $altdir ]; then
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altfile=$altdir/$(realpath $kak_buffile --relative-to $dir | sed s+[^/]'*'/++';'s/.lua$/_spec.lua/)
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break
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fi
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done
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[ ! -d "$altdir" ] && echo "fail 'spec/ not found'" && exit
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;;
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*)
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echo "fail 'alternative file not found'" && exit
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;;
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esac
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printf %s\\n "edit $altfile"
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}}
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define-command -hidden lua-trim-indent %{
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# remove trailing whitespaces
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try %{ execute-keys -draft -itersel <a-x> s \h+$ <ret> d }
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}
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define-command -hidden lua-indent-on-char %{
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evaluate-commands -no-hooks -draft -itersel %{
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# align middle and end structures to start and indent when necessary, elseif is already covered by else
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try %{ execute-keys -draft <a-x><a-k>^\h*(else)$<ret><a-semicolon><a-?>^\h*(if)<ret>s\A|.\z<ret>)<a-&> }
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try %{ execute-keys -draft <a-x><a-k>^\h*(end)$<ret><a-semicolon><a-?>^\h*(for|function|if|while)<ret>s\A|.\z<ret>)<a-&> }
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}
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}
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define-command -hidden lua-indent-on-new-line %{
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evaluate-commands -no-hooks -draft -itersel %{
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# remove trailing white spaces from previous line
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try %{ execute-keys -draft k : lua-trim-indent <ret> }
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# preserve previous non-empty line indent
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try %{ execute-keys -draft <space><a-?>^[^\n]+$<ret>s\A|.\z<ret>)<a-&> }
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# indent after start structure
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try %{ execute-keys -draft <a-?>^[^\n]*\w+[^\n]*$<ret><a-k>\b(else|elseif|for|function|if|while)\b<ret><a-K>\bend\b<ret><a-:><semicolon><a-gt> }
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}
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}
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define-command -hidden lua-insert-on-new-line %[
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evaluate-commands -no-hooks -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>yghjP }
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# wisely add end structure
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evaluate-commands -save-regs x %[
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try %{ execute-keys -draft k<a-x>s^\h+<ret>"xy } catch %{ reg x '' } # Save previous line indent in register x
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try %[ execute-keys -draft k<a-x> <a-k>^<c-r>x\b[^\n]*(for|function|if|while)<ret><a-K>\bend\b<ret> J}iJ<a-x> <a-K>^<c-r>x(else|end|elseif)$<ret> # Validate previous line and that it is not closed yet
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execute-keys -draft o<c-r>xend<esc> # auto insert end
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execute-keys -draft k<a-x><a-k>\(function\b<ret>jjA)<esc> ] # auto insert ) for anonymous function
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]
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]
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]
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]
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