Merge remote-tracking branch 'ericricky/master'
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commit
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rc/filetype/R.kak
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143
rc/filetype/R.kak
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# http://kakoune.org
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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# Detection
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# ‾‾‾‾‾‾‾‾‾
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hook global BufCreate (.*/)?(\.Rprofile|.*\.[rR]) %{
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set-option buffer filetype R
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}
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# Highlighters & Completion
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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add-highlighter shared/R regions
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add-highlighter shared/R/code default-region group
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add-highlighter shared/R/double_string region '"' (?<!\\)(\\\\)*" fill string
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add-highlighter shared/R/single_string region "'" (?<!\\)(\\\\)*' fill string
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add-highlighter shared/R/comment region '#' '$' fill comment
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add-highlighter shared/R/identifier region '`' (?<!\\)(\\\\)*` fill attribute
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# see base::NumericConstants
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add-highlighter shared/R/code/ regex '(?i)\b(?<![.\d])\d+(\.\d*)?(e[-+]?\d+)?(?I)[iL]?(?![\d.e\w])' 0:value
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add-highlighter shared/R/code/ regex '(?i)(?<![.\d\w])\.\d+(e[-+]?\d+)?(?I)[iL]?(?![\d.e])' 0:value
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add-highlighter shared/R/code/ regex '(?i)\b(?<![.\d])0x[0-9a-f]+?(p[-+]?\d+)?(?I)[iL]?(?![\d.e\w])' 0:value
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evaluate-commands %sh{
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# see base::Reserved
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values="TRUE|FALSE|NULL|Inf|NaN|NA|NA_integer_|NA_real_|NA_complex_|NA_character_|\.{3}|\.{2}\d+|"
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keywords="if|else|repeat|while|function|for|in|next|break"
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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=python %{
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set-option window static_words ${values} ${keywords}
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}" | tr '|' ' '
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printf %s "
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add-highlighter shared/R/code/ regex '\b(${values})\b' 0:value
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add-highlighter shared/R/code/ regex '\b(${keywords})\b' 0:keyword
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"
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}
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# see base::Syntax
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add-highlighter shared/R/code/ regex (?<=[\w\s\d'"_)])(\$|@|\^|-|\+|%[^%]+%|\*|/|<(?![<-])|(?<![->])>|<=|>=|==|!=|!|&{1,2}|\|{1,2}|~|\?) 0:operator
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# Commands
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# ‾‾‾‾‾‾‾‾
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define-command -hidden R-trim-indent %{
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# remove the line if it's empty when leaving the insert mode
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try %{ execute-keys -draft <a-x> 1s^(\h+)$<ret> d }
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}
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define-command -hidden R-indent-on-newline %< evaluate-commands -draft -itersel %<
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execute-keys \;
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try %<
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# if previous line closed a paren (possibly followed by words and a comment),
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# copy indent of the opening paren line
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execute-keys -draft k<a-x> 1s(\))(\h+\w+)*\h*(\;\h*)?(?:#[^\n]+)?\n\z<ret> m<a-\;>J <a-S> 1<a-&>
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> catch %<
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# else indent new lines with the same level as the previous one
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execute-keys -draft K <a-&>
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>
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# remove previous empty lines resulting from the automatic indent
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try %< execute-keys -draft k <a-x> <a-k>^\h+$<ret> Hd >
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# indent after an opening brace or parenthesis at end of line
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try %< execute-keys -draft k <a-x> s[{(]\h*$<ret> j <a-gt> >
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# indent after a statement not followed by an opening brace
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try %< execute-keys -draft k <a-x> s\)\h*(?:#[^\n]+)?\n\z<ret> \
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<a-\;>mB <a-k>\A\b(if|for|while)\b<ret> <a-\;>j <a-gt> >
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try %< execute-keys -draft k <a-x> s \belse\b\h*(?:#[^\n]+)?\n\z<ret> \
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j <a-gt> >
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# deindent after a single line statement end
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try %< execute-keys -draft K <a-x> <a-k>\;\h*(#[^\n]+)?$<ret> \
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K <a-x> s\)(\h+\w+)*\h*(#[^\n]+)?\n([^\n]*\n){2}\z<ret> \
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MB <a-k>\A\b(if|for|while)\b<ret> <a-S>1<a-&> >
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try %< execute-keys -draft K <a-x> <a-k>\;\h*(#[^\n]+)?$<ret> \
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K <a-x> s \belse\b\h*(?:#[^\n]+)?\n([^\n]*\n){2}\z<ret> \
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<a-S>1<a-&> >
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# align to the opening parenthesis or opening brace (whichever is first)
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# on a previous line if its followed by text on the same line
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try %< evaluate-commands -draft %<
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# Go to opening parenthesis and opening brace, then select the most nested one
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try %< execute-keys [c [({],[)}] <ret> >
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# Validate selection and get first and last char
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execute-keys <a-k>\A[{(](\h*\S+)+\n<ret> <a-K>"(([^"]*"){2})*<ret> <a-K>'(([^']*'){2})*<ret> <a-:><a-\;>L <a-S>
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# Remove possibly incorrect indent from new line which was copied from previous line
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try %< execute-keys -draft <space> <a-h> s\h+<ret> d >
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# Now indent and align that new line with the opening parenthesis/brace
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execute-keys 1<a-&> &
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> >
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> >
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define-command -hidden R-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> <a-S> 1<a-&> ]
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]
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define-command -hidden R-indent-on-closing-curly-brace %[
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# align to opening curly brace when alone on a line
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try %[
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# in case open curly brace follows a closing paren, align indent with opening paren
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execute-keys -itersel -draft <a-h><a-:><a-k>^\h+\}$<ret>hm <a-F>)M <a-k> \A\(.*\)\h\{.*\}\z <ret> <a-S>1<a-&>
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] catch %[
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# otherwise align with open curly brace
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execute-keys -itersel -draft <a-h><a-:><a-k>^\h+\}$<ret>hm<a-S>1<a-&>
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] catch %[]
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]
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define-command -hidden R-insert-on-newline %[ evaluate-commands -itersel -draft %[
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execute-keys \;
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try %[
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evaluate-commands -draft -save-regs '/"' %[
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# copy the commenting prefix
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execute-keys -save-regs '' k <a-x>1s^\h*(#+\h*)<ret> y
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try %[
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# if the previous comment isn't empty, create a new one
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execute-keys <a-x><a-K>^\h*#+\h*$<ret> j<a-x>s^\h*<ret>P
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] catch %[
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# if there is no text in the previous comment, remove it completely
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execute-keys d
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]
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]
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]
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] ]
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# Initialization
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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hook -group R-highlight global WinSetOption filetype=R %{
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add-highlighter window/R ref R
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hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/R }
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}
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hook global WinSetOption filetype=R %~
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hook window ModeChange insert:.* R-trim-indent
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hook window InsertChar \n R-insert-on-newline
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hook window InsertChar \n R-indent-on-newline
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hook window InsertChar \{ R-indent-on-opening-curly-brace
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hook window InsertChar \} R-indent-on-closing-curly-brace
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hook -once -always window WinSetOption filetype=.* %{ remove-hooks window R-.+ }
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~
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