0f63dd339a
1. Highlight short variable declaration operator :=.
2. 'while' is not go keyword.
3. Auto insert ')', '}', when line ends with '(' or '{'.
140 lines
5.8 KiB
Plaintext
140 lines
5.8 KiB
Plaintext
# https://golang.org/
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#
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# Detection
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# ‾‾‾‾‾‾‾‾‾
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hook global BufCreate .*\.go %{
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set-option buffer filetype go
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}
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# Initialization
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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hook global WinSetOption filetype=go %{
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require-module go
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set-option window static_words %opt{go_static_words}
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# cleanup trailing whitespaces when exiting insert mode
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hook window ModeChange pop:insert:.* -group go-trim-indent %{ try %{ execute-keys -draft <a-x>s^\h+$<ret>d } }
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hook window InsertChar \n -group go-indent go-indent-on-new-line
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hook window InsertChar \{ -group go-indent go-indent-on-opening-curly-brace
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hook window InsertChar \} -group go-indent go-indent-on-closing-curly-brace
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hook window InsertChar \n -group go-insert go-insert-on-new-line
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hook -once -always window WinSetOption filetype=.* %{ remove-hooks window go-.+ }
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}
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hook -group go-highlight global WinSetOption filetype=go %{
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add-highlighter window/go ref go
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hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/go }
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}
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provide-module go %§
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# Highlighters
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# ‾‾‾‾‾‾‾‾‾‾‾‾
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add-highlighter shared/go regions
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add-highlighter shared/go/code default-region group
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add-highlighter shared/go/back_string region '`' '`' fill string
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add-highlighter shared/go/double_string region '"' (?<!\\)(\\\\)*" fill string
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add-highlighter shared/go/single_string region "'" (?<!\\)(\\\\)*' fill string
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add-highlighter shared/go/comment region /\* \*/ fill comment
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add-highlighter shared/go/comment_line region '//' $ fill comment
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add-highlighter shared/go/code/ regex %{-?([0-9]*\.(?!0[xX]))?\b([0-9]+|0[xX][0-9a-fA-F]+)\.?([eE][+-]?[0-9]+)?i?\b} 0:value
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evaluate-commands %sh{
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# Grammar
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keywords='break default func interface select case defer go map struct
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chan else goto package switch const fallthrough if range type
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continue for import return var'
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types='bool byte chan complex128 complex64 error float32 float64 int int16 int32
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int64 int8 interface intptr map rune string struct uint uint16 uint32 uint64 uint8'
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values='false true nil iota'
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functions='append cap close complex copy delete imag len make new panic print println real recover'
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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 go_static_words $(join "${keywords} ${attributes} ${types} ${values} ${functions}" ' ')"
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# Highlight keywords
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printf %s "
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add-highlighter shared/go/code/ regex \b($(join "${keywords}" '|'))\b 0:keyword
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add-highlighter shared/go/code/ regex \b($(join "${attributes}" '|'))\b 0:attribute
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add-highlighter shared/go/code/ regex \b($(join "${types}" '|'))\b 0:type
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add-highlighter shared/go/code/ regex \b($(join "${values}" '|'))\b 0:value
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add-highlighter shared/go/code/ regex \b($(join "${functions}" '|'))\b 0:builtin
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add-highlighter shared/go/code/ regex := 0:attribute
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"
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}
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# Commands
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# ‾‾‾‾‾‾‾‾
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define-command -hidden go-indent-on-new-line %~
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evaluate-commands -draft -itersel %=
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# preserve previous line indent
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try %{ execute-keys -draft <semicolon>K<a-&> }
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# indent after lines ending with { or (
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try %[ execute-keys -draft k<a-x> <a-k> [{(]\h*$ <ret> j<a-gt> ]
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# cleanup trailing white spaces on the previous line
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try %{ execute-keys -draft k<a-x> s \h+$ <ret>d }
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# align to opening paren of previous line
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try %{ execute-keys -draft [( <a-k> \A\([^\n]+\n[^\n]*\n?\z <ret> s \A\(\h*.|.\z <ret> '<a-;>' & }
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# copy // comments prefix
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try %{ execute-keys -draft <semicolon><c-s>k<a-x> s ^\h*\K/{2,} <ret> y<c-o>P<esc> }
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# indent after a switch's case/default statements
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try %[ execute-keys -draft k<a-x> <a-k> ^\h*(case|default).*:$ <ret> j<a-gt> ]
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# deindent closing brace(s) when after cursor
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try %[ execute-keys -draft <a-x> <a-k> ^\h*[})] <ret> gh / [})] <ret> m <a-S> 1<a-&> ]
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=
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~
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define-command -hidden go-indent-on-opening-curly-brace %[
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# align indent with opening paren when { is entered on a new line after the closing paren
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try %[ execute-keys -draft -itersel h<a-F>)M <a-k> \A\(.*\)\h*\n\h*\{\z <ret> s \A|.\z <ret> 1<a-&> ]
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]
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define-command -hidden go-indent-on-closing-curly-brace %[
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# align to opening curly brace when alone on a line
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try %[ execute-keys -itersel -draft <a-h><a-k>^\h+\}$<ret>hms\A|.\z<ret>1<a-&> ]
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]
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define-command -hidden go-insert-on-new-line %[
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evaluate-commands -no-hooks -draft -itersel %[
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# Wisely add '}'.
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evaluate-commands -save-regs x %[
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# Save previous line indent in register x.
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try %[ execute-keys -draft k<a-x>s^\h+<ret>"xy ] catch %[ reg x '' ]
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try %[
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# Validate previous line and that it is not closed yet.
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execute-keys -draft k<a-x> <a-k>^<c-r>x.*\{\h*\(?\h*$<ret> J}iJ<a-x> <a-K>^<c-r>x(\)?\h*\})$<ret>
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# Insert closing '}'.
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execute-keys -draft o<c-r>x}<esc>
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# Delete trailing '}' on the line below the '{'.
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execute-keys -draft Xs\}$<ret>d
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]
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]
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# Wisely add ')'.
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evaluate-commands -save-regs x %[
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# Save previous line indent in register x.
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try %[ execute-keys -draft k<a-x>s^\h+<ret>"xy ] catch %[ reg x '' ]
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try %[
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# Validate previous line and that it is not closed yet.
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execute-keys -draft k<a-x> <a-k>^<c-r>x.*\(\h*$<ret> J}iJ<a-x> <a-K>^<c-r>x(\)\h*\}?)$<ret>
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# Insert closing ')'.
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execute-keys -draft o<c-r>x)<esc>
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# Delete trailing ')' on the line below the '('.
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execute-keys -draft Xs\)\h*\}?\h*$<ret>d
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]
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]
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]
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]
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§
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