98 lines
4.2 KiB
Plaintext
98 lines
4.2 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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# 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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keywords="${keywords}|chan|else|goto|package|switch|const|fallthrough|if|range|type"
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keywords="${keywords}|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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types="${types}|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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# Add the language's grammar to the static completion list
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printf %s\\n "hook global WinSetOption filetype=go %{
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set-option window static_words ${keywords} ${attributes} ${types} ${values} ${functions}
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}" | tr '|' ' '
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# Highlight keywords
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printf %s "
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add-highlighter shared/go/code/ regex \b(${keywords})\b 0:keyword
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add-highlighter shared/go/code/ regex \b(${attributes})\b 0:attribute
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add-highlighter shared/go/code/ regex \b(${types})\b 0:type
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add-highlighter shared/go/code/ regex \b(${values})\b 0:value
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add-highlighter shared/go/code/ regex \b(${functions})\b 0:builtin
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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 \;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 \;<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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# indent after if|else|while|for
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try %[ execute-keys -draft \;<a-F>)MB <a-k> \A(if|else|while|for)\h*\(.*\)\h*\n\h*\n?\z <ret> s \A|.\z <ret> 1<a-&>1<a-space><a-gt> ]
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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+\}$<ret>hms\A|.\z<ret>1<a-&> ]
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]
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# Initialization
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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hook -group go-highlight global WinSetOption filetype=go %{
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add-highlighter window/go ref go
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hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/go }
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}
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hook global WinSetOption filetype=go %{
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# cleanup trailing whitespaces when exiting insert mode
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hook window ModeChange insert:.* -group go-trim-indent %{ try %{ execute-keys -draft <a-x>s^\h+$<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 -once -always window WinSetOption filetype=.* %{ remove-hooks window go-.+ }
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}
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