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87 lines
3.2 KiB
Plaintext
87 lines
3.2 KiB
Plaintext
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# https://smlfamily.github.io
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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# Detection
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# ‾‾‾‾‾‾‾‾‾
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hook global BufCreate .*\.(sml|fun|sig) %{
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set-option buffer filetype sml
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}
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# Initialization
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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hook global WinSetOption filetype=sml %{
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require-module sml
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set-option buffer extra_word_chars '_' "'"
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set-option window static_words %opt{sml_static_words}
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}
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hook -group sml-highlight global WinSetOption filetype=sml %{
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add-highlighter window/sml ref sml
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hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/sml }
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}
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provide-module sml %[
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# Highlighters
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# ‾‾‾‾‾‾‾‾‾‾‾‾
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add-highlighter shared/sml regions
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add-highlighter shared/sml/code default-region group
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add-highlighter shared/sml/string region '#?"' '(?<!\\)(\\\\)*"' fill string
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add-highlighter shared/sml/comment region -recurse '\(\*' '\(\*' '\*\)' fill comment
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evaluate-commands %sh{
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keywords='abstype and andalso as case datatype do else end exception fn fun
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handle if in infix infixr let local nonfix of op open orelse raise
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rec then type val with withtype while eqtype functor include
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sharing sig signature struct structure'
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types='unit exn ref'
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ops='before ignore o
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div mod quot rem abs
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not chr ord ceil floor round trunc
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andb orb xorb notb'
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join() { sep=$2; eval set -- $1; IFS="$sep"; echo "$*"; }
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printf %s\\n "declare-option str-list sml_static_words $(join "${keywords} ${types} ${ops}" ' ')"
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printf %s "
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add-highlighter shared/sml/code/ regex \b($(join "${keywords}" '|'))\b 0:keyword
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add-highlighter shared/sml/code/ regex \b($(join "${types}" '|'))\b 0:builtin
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add-highlighter shared/sml/code/ regex \b($(join "${ops}" '|'))\b 0:operator
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"
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}
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# Symbolic identifiers
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add-highlighter shared/sml/code/ regex "[!*/+\-~\^@=<>%%&$?`\\#:|]+" 0:operator
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# Record projection functions
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add-highlighter shared/sml/code/ regex "(?<![!*/+\-~\^@=<>%%&$?`\\#:|])#([\w']+)?(?![!*/+\-~\^@=<>%%&$?`\\#:|])" 0:function
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# Symbolic keywords
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add-highlighter shared/sml/code/ regex "(?<![!*/+\-~\^@=<>%%&$?`\\#:|])(=>|=|\*|->|:>|:|;|\.\.\.|\b_\b|\|)(?![!*/+\-~\^@=<>%%&$?`\\#:|])" 0:keyword
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# Type variables
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add-highlighter shared/sml/code/ regex "(?<![\w'])'[\w']+(?![\w'])" 0:variable
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# Structure identifiers and value constructors
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add-highlighter shared/sml/code/ regex "(?<![\w'])([A-Z][\w']*\.?)" 0:type
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# Signature identifiers and all-caps value constructors
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add-highlighter shared/sml/code/ regex "(?<![\w'])[A-Z]{2}[A-Z0-9_']+(?![\w'])" 0:attribute
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# Constants
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add-highlighter shared/sml/code/ regex "(?<![\w'])(true|false|nil)\b" 0:value
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# Numeric literals
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add-highlighter shared/sml/code/ regex "(?<![\w'])0w[0-9]+\b" 0:value
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add-highlighter shared/sml/code/ regex "(?<![\w'])(0wx|0xw)[0-9a-fA-F]+\b" 0:value
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add-highlighter shared/sml/code/ regex "(?<![\w'])(0wb|0bw)[01]+\b" 0:value
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add-highlighter shared/sml/code/ regex "(~|(?<![\w']))0x[0-9a-fA-F]+\b" 0:value
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add-highlighter shared/sml/code/ regex "(~|(?<![\w']))0b[01]+\b" 0:value
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add-highlighter shared/sml/code/ regex "(?<!#)(~|(?<![\w']))[0-9]+(\.[0-9]+)?([eE]~?[0-9]+)?\b" 0:value
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]
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