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kakoune/rc/filetype/fsharp.kak
Johannes Altmanninger 0a9c90fecf rc: use a separate *-insert hook to auto-insert comments
This should cover all filetypes that already auto-insert comments,
except for rust.kak, which is left for a follow-up.

Most of these are straightforward, some explanation for special cases:

rc/filetype/zig.kak rc/filetype/cue.kak

  These indent hooks used their own logic to indent after "{" only if
  no comment was inserted. Replace this logic by checking if a comment
  was inserted. This works because these "*-insert" hooks are run
  before their respective "*-indent" hooks.
 
rc/filetype/php.kak

  This also has some logic to insert "*" after "/*" lines. Basic
  usage seems to work still. In future this should borrow from the
  c-family one, which works a bit better.
2021-04-17 20:56:23 +02:00

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# https://fsharp.org/
#
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*[.](fs|fsx|fsi) %{
set-option buffer filetype fsharp
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook global WinSetOption filetype=fsharp %{
require-module fsharp
# indent on newline
hook window InsertChar \n -group fsharp-insert fsharp-insert-on-new-line
hook window InsertChar \n -group fsharp-indent fsharp-indent-on-new-line
hook -once -always window WinSetOption filetype=.* %{ remove-hooks window fsharp-.+ }
}
hook -group fsharp-highlight global WinSetOption filetype=fsharp %{
add-highlighter window/fsharp ref fsharp
hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/fsharp }
}
provide-module fsharp %§
# Highlighters & Completion
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/fsharp regions
add-highlighter shared/fsharp/code default-region group
add-highlighter shared/fsharp/docstring region \(\*(?!\)) (\*\)) regions
add-highlighter shared/fsharp/double_string region @?(?<!')" (?<!\\)(\\\\)*"B? fill string
add-highlighter shared/fsharp/comment region '//' '$' fill comment
# https://docs.microsoft.com/en-us/dotnet/fsharp/language-reference/attributes
add-highlighter shared/fsharp/attributes region "\[<" ">\]" fill meta
add-highlighter shared/fsharp/docstring/ default-region fill comment
# ability to write highlighted code inside docstring:
add-highlighter shared/fsharp/docstring/ region '>>> \K' '\z' ref fsharp
add-highlighter shared/fsharp/docstring/ region '\.\.\. \K' '\z' ref fsharp
evaluate-commands %sh{
# Grammar
meta="open"
# exceptions taken from fsharp.vim colors (https://github.com/fsharp/vim-fsharp)
exceptions="try|failwith|failwithf|finally|invalid_arg|raise|rethrow"
# keywords taken from fsharp.vim colors (https://github.com/fsharp/vim-fsharp)
keywords="abstract|as|assert|base|begin|class|default|delegate"
keywords="${keywords}|do|done|downcast|downto|elif|else|end|exception"
keywords="${keywords}|extern|for|fun|function|global|if|in|inherit|inline"
keywords="${keywords}|interface|lazy|let|match|member|module|mutable"
keywords="${keywords}|namespace|new|of|override|rec|static|struct|then"
keywords="${keywords}|to|type|upcast|use|val|void|when|while|with"
keywords="${keywords}|async|atomic|break|checked|component|const|constraint"
keywords="${keywords}|constructor|continue|decimal|eager|event|external"
keywords="${keywords}|fixed|functor|include|method|mixin|object|parallel"
keywords="${keywords}|process|pure|return|seq|tailcall|trait|yield"
# additional operator keywords (Microsoft.FSharp.Core.Operators)
keywords="${keywords}|box|hash|sizeof|nameof|typeof|typedefof|unbox|ref|fst|snd"
keywords="${keywords}|stdin|stdout|stderr"
# math operators (Microsoft.FSharp.Core.Operators)
keywords="${keywords}|abs|acos|asin|atan|atan2|ceil|cos|cosh|exp|floor|log"
keywords="${keywords}|log10|pown|round|sign|sin|sinh|sqrt|tan|tanh"
types="array|bool|byte|char|decimal|double|enum|exn|float"
types="${types}|float32|int|int16|int32|int64|lazy_t|list|nativeint"
types="${types}|obj|option|sbyte|single|string|uint|uint32|uint64"
types="${types}|uint16|unativeint|unit"
fsharpCoreMethod="printf|printfn|sprintf|eprintf|eprintfn|fprintf|fprintfn"
# Add the language's grammar to the static completion list
printf '%s\n' "hook global WinSetOption filetype=fsharp %{
set-option window static_words ${values} ${meta} ${exceptions} ${keywords} ${types}
}" | tr '|' ' '
# Highlight keywords
printf '%s\n' "
add-highlighter shared/fsharp/code/ regex '\b(${meta})\b' 0:meta
add-highlighter shared/fsharp/code/ regex '\b(${exceptions})\b' 0:function
add-highlighter shared/fsharp/code/ regex '\b(${fsharpCoreMethod})\b' 0:function
add-highlighter shared/fsharp/code/ regex '\b(${keywords})\b' 0:keyword
"
}
# computation expression keywords prefixed with !
add-highlighter shared/fsharp/code/ regex "\w+!" 0:keyword
# brackets
add-highlighter shared/fsharp/code/ regex "[\[\]\(\){}]" 0:bracket
# accomodate typically overloaded operators
add-highlighter shared/fsharp/code/ regex "\B(<<>>|<\|\|>)\B" 0:operator
# fsharp operators
add-highlighter shared/fsharp/code/ regex "\B(->|<-|<=|>=)\B" 0:operator
add-highlighter shared/fsharp/code/ regex "(\b(not)\b|\b(and)\b)" 0:operator
add-highlighter shared/fsharp/code/ regex (?<=[\w\s\d'"_])((\?)([><+-/*%=]{1,2})(\??)|(\??)([><+-/*%=]{1,2})(\?)) 0:operator
add-highlighter shared/fsharp/code/ regex (?<=[\w\s\d'"_])((\|)+>|<(\|)+|<@|@>|<@@|@@>|:>|:\?|:=|(!|#)(?=\w)|:\?>|\?|~([-+]|(~){0,2})) 0:operator
add-highlighter shared/fsharp/code/ regex (?<=[\w\s\d'"_])(<>|::|\h\|\h|(\|\|)+|@|\.\.|<=|>=|(<)+|(>)+|!=|==|\|\|\||(\^)+|(&)+|\+|-|(\*)+|//|/|%+|=) 0:operator
add-highlighter shared/fsharp/code/ regex (?<=[\w\s\d'"_])((?<![=<>!])=(?![=])|[+*-]=) 0:builtin
# integer literals
add-highlighter shared/fsharp/code/ regex %{(?<!\.)\b[1-9]('?\d+)*(u?(l|L|y|s|n)?|[IMm])\b(?!\.)} 0:value
add-highlighter shared/fsharp/code/ regex %{(?<!\.)\b0b[01]('?[01]+)*(u?(l|L|y|s|n)?|[IMm])\b(?!\.)} 0:value
add-highlighter shared/fsharp/code/ regex %{(?<!\.)\b0('?[0-7]+)*(u?(l|L|y|s|n)?|[IMm])\b(?!\.)} 0:value
add-highlighter shared/fsharp/code/ regex %{(?<!\.)\b0x[\da-fA-F]('?[\da-fA-F]+)*(u?(l|L|y|s|n)?)?\b(?!\.)} 0:value
# floating point literals
add-highlighter shared/fsharp/code/ regex %{(?i)(?<!\.)\b\d('?\d+)*\.((lf|[fm])\b|\B)(?!\.)} 0:value
add-highlighter shared/fsharp/code/ regex %{(?i)(?<!\.)\b\d('?\d+)*\.?e[+-]?\d('?\d+)*(lf|[fm])?\b(?!\.)} 0:value
add-highlighter shared/fsharp/code/ regex %{(?i)(?<!\.)(\b(\d('?\d+)*)|\B)\.\d('?[\d]+)*(e[+-]?\d('?\d+)*)?(lf|[fm])?\b(?!\.)} 0:value
add-highlighter shared/fsharp/code/ regex %{(?i)(?<!\.)\b0x[\da-f]('?[\da-f]+)*((lf|[fm])\b|\B)(?!\.)} 0:value
add-highlighter shared/fsharp/code/ regex %{(?i)(?<!\.)\b0x[\da-f]('?[\da-f]+)*\.?p[+-]?\d('?\d+)*)?(lf|[fm])?\b(?!\.)} 0:value
add-highlighter shared/fsharp/code/ regex %{(?i)(?<!\.)\b0x([\da-f]('?[\da-f]+)*)?\.\d('?[\d]+)*(p[+-]?\d('?\d+)*)?(lf|[fm])?\b(?!\.)} 0:value
# character literals
add-highlighter shared/fsharp/code/char regex %{\B'((\\.)|[^'\\])'(\b(B)|\B)} 0:value
# other literals
add-highlighter shared/fsharp/code/ regex "\b(true|false)\b" 0:value
add-highlighter shared/fsharp/code/ regex "\B(\(\))\B" 0:value
# Commands
# ‾‾‾‾‾‾‾‾
define-command -hidden fsharp-insert-on-new-line %{
evaluate-commands -draft -itersel %{
# copy // comments prefix and following white spaces
try %{ execute-keys -draft k <a-x> s ^\h*//\h* <ret> y jgh P }
}
}
define-command -hidden fsharp-indent-on-new-line %{
evaluate-commands -draft -itersel %{
# preserve previous line indent
try %{ execute-keys -draft \; K <a-&> }
# cleanup trailing whitespaces from previous line
try %{ execute-keys -draft k <a-x> s \h+$ <ret> d }
# indent after line ending with =
try %{ execute-keys -draft <space> k <a-x> <a-k> =$ <ret> j <a-gt> }
# indent after line ending with "do"
try %{ execute-keys -draft <space> k <a-x> <a-k> \bdo$ <ret> j <a-gt> }
}
}
§