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kakoune/rc/filetype/crystal.kak

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# Crystal
# https://crystal-lang.org
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate '.*\.cr' %{
set-option buffer filetype crystal
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook global WinSetOption filetype=crystal %{
require-module crystal
add-highlighter window/crystal ref crystal
evaluate-commands set-option window static_words %opt{crystal_keywords} %opt{crystal_attributes} %opt{crystal_objects}
hook window ModeChange pop:insert:.* -group crystal-trim-indent crystal-trim-indent
hook window InsertChar .* -group crystal-indent crystal-indent-on-char
hook window InsertChar '\n' -group crystal-indent crystal-indent-on-new-line
hook window InsertChar '\n' -group crystal-insert crystal-insert-on-new-line
hook -always -once window WinSetOption filetype=.* %{
remove-highlighter window/crystal
remove-hooks window crystal-.+
}
}
provide-module crystal %§
declare-option -hidden str-list crystal_keywords 'abstract' 'alias' 'annotation' 'as' 'asm' 'begin' 'break' 'case' 'class' 'def' 'do' 'else' 'elsif' 'end' 'ensure' 'enum' 'extend' 'false' 'for' 'fun' 'if' 'include' 'instance_sizeof' 'is_a?' 'lib' 'macro' 'module' 'next' 'nil' 'nil?' 'of' 'offsetof' 'out' 'pointerof' 'private' 'protected' 'require' 'rescue' 'responds_to?' 'return' 'select' 'self' 'sizeof' 'struct' 'super' 'then' 'true' 'type' 'typeof' 'uninitialized' 'union' 'unless' 'until' 'verbatim' 'when' 'while' 'with' 'yield'
# https://crystal-lang.org/reference/syntax_and_semantics/methods_and_instance_variables.html#getters-and-setters
declare-option -hidden str-list crystal_attributes 'getter' 'setter' 'property'
declare-option -hidden str-list crystal_operators '+' '-' '*' '/' '//' '%' '|' '&' '^' '~' '**' '<<' '<' '<=' '==' '!=' '=~' '!~' '>>' '>' '>=' '<=>' '===' '[]' '[]=' '[]?' '[' '&+' '&-' '&*' '&**'
declare-option -hidden str-list crystal_objects 'Adler32' 'ArgumentError' 'Array' 'Atomic' 'Base64' 'Benchmark' 'BigDecimal' 'BigFloat' 'BigInt' 'BigRational' 'BitArray' 'Bool' 'Box' 'Bytes' 'Channel' 'Char' 'Class' 'Colorize' 'Comparable' 'Complex' 'Concurrent' 'ConcurrentExecutionException' 'CRC32' 'Crypto' 'Crystal' 'CSV' 'Debug' 'Deprecated' 'Deque' 'Digest' 'Dir' 'DivisionByZeroError' 'DL' 'ECR' 'Enum' 'Enumerable' 'ENV' 'Errno' 'Exception' 'Fiber' 'File' 'FileUtils' 'Flags' 'Flate' 'Float' 'Float32' 'Float64' 'GC' 'Gzip' 'Hash' 'HTML' 'HTTP' 'Indexable' 'IndexError' 'INI' 'Int' 'Int128' 'Int16' 'Int32' 'Int64' 'Int8' 'InvalidBigDecimalException' 'InvalidByteSequenceError' 'IO' 'IPSocket' 'Iterable' 'Iterator' 'JSON' 'KeyError' 'Levenshtein' 'Link' 'LLVM' 'Logger' 'Markdown' 'Math' 'MIME' 'Mutex' 'NamedTuple' 'Nil' 'NilAssertionError' 'NotImplementedError' 'Number' 'OAuth' 'OAuth2' 'Object' 'OpenSSL' 'OptionParser' 'OverflowError' 'PartialComparable' 'Path' 'Pointer' 'PrettyPrint' 'Proc' 'Process' 'Random' 'Range' 'Readline' 'Reference' 'Reflect' 'Regex' 'SemanticVersion' 'Set' 'Signal' 'Slice' 'Socket' 'Spec' 'StaticArray' 'String' 'StringPool' 'StringScanner' 'Struct' 'Symbol' 'System' 'TCPServer' 'TCPSocket' 'Termios' 'Time' 'Tuple' 'TypeCastError' 'UDPSocket' 'UInt128' 'UInt16' 'UInt32' 'UInt64' 'UInt8' 'Unicode' 'Union' 'UNIXServer' 'UNIXSocket' 'URI' 'UUID' 'VaList' 'Value' 'WeakRef' 'XML' 'YAML' 'Zip' 'Zlib'
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/crystal regions
add-highlighter shared/crystal/code default-region group
# Comments
# https://crystal-lang.org/reference/syntax_and_semantics/comments.html
# Avoid string literals with interpolation
add-highlighter shared/crystal/comment region '#(?!\{)' '$' fill comment
# String
# https://crystal-lang.org/reference/syntax_and_semantics/literals/string.html
add-highlighter shared/crystal/string region '"' '(?<!\\)(\\\\)*"' regions
# Percent string literals
# https://crystal-lang.org/reference/syntax_and_semantics/literals/string.html#percent-string-literals
add-highlighter shared/crystal/parenthesis-string region -recurse '\(' '%Q?\(' '\)' regions
add-highlighter shared/crystal/bracket-string region -recurse '\[' '%Q?\[' '\]' regions
add-highlighter shared/crystal/brace-string region -recurse '\{' '%Q?\{' '\}' regions
add-highlighter shared/crystal/angle-string region -recurse '<' '%Q?<' '>' regions
add-highlighter shared/crystal/pipe-string region '%Q?\|' '\|' regions
# Raw
# https://crystal-lang.org/reference/syntax_and_semantics/literals/string.html#percent-string-literals
# https://crystal-lang.org/reference/syntax_and_semantics/literals/string.html#percent-string-array-literal
# https://crystal-lang.org/reference/syntax_and_semantics/literals/symbol.html#percent-symbol-array-literal
add-highlighter shared/crystal/raw-parenthesis-string region -recurse '\(' '%[qwi]\(' '\)' fill string
add-highlighter shared/crystal/raw-bracket-string region -recurse '\[' '%[qwi]\[' '\]' fill string
add-highlighter shared/crystal/raw-brace-string region -recurse '\{' '%[qwi]\{' '\}' fill string
add-highlighter shared/crystal/raw-angle-string region -recurse '<' '%[qwi]<' '>' fill string
add-highlighter shared/crystal/raw-pipe-string region '%[qwi]\|' '\|' fill string
# Here document
# https://crystal-lang.org/reference/syntax_and_semantics/literals/string.html#heredoc
add-highlighter shared/crystal/heredoc region -match-capture '<<-(\w+)' '^\h*(\w+)$' regions
# Raw
add-highlighter shared/crystal/raw-heredoc region -match-capture "<<-'(\w+)'" '^\h*(\w+)$' regions
add-highlighter shared/crystal/raw-heredoc/fill default-region fill string
add-highlighter shared/crystal/raw-heredoc/interpolation region -recurse '\{' '#\{' '\}' fill meta
# Symbol
# https://crystal-lang.org/reference/syntax_and_semantics/literals/symbol.html
add-highlighter shared/crystal/quoted-symbol region ':"' '(?<!\\)(\\\\)*"' fill value
# Regular expressions
# https://crystal-lang.org/reference/syntax_and_semantics/literals/regex.html
# https://crystal-lang.org/reference/syntax_and_semantics/literals/regex.html#modifiers
add-highlighter shared/crystal/regex region '/' '(?<!\\)(\\\\)*/[imx]*' regions
# Avoid unterminated regular expression
add-highlighter shared/crystal/division region ' / ' '.\K' group
# Percent regex literals
# https://crystal-lang.org/reference/syntax_and_semantics/literals/regex.html#percent-regex-literals
add-highlighter shared/crystal/parenthesis-regex region -recurse '\(' '%r?\(' '\)[imx]*' regions
add-highlighter shared/crystal/bracket-regex region -recurse '\[' '%r?\[' '\][imx]*' regions
add-highlighter shared/crystal/brace-regex region -recurse '\{' '%r?\{' '\}[imx]*' regions
add-highlighter shared/crystal/angle-regex region -recurse '<' '%r?<' '>[imx]*' regions
add-highlighter shared/crystal/pipe-regex region '%r?\|' '\|[imx]*' regions
# Command
# https://crystal-lang.org/reference/syntax_and_semantics/literals/command.html
add-highlighter shared/crystal/command region '`' '(?<!\\)(\\\\)*`' regions
# Percent command literals
add-highlighter shared/crystal/parenthesis-command region -recurse '\(' '%x?\(' '\)' regions
add-highlighter shared/crystal/bracket-command region -recurse '\[' '%x?\[' '\]' regions
add-highlighter shared/crystal/brace-command region -recurse '\{' '%x?\{' '\}' regions
add-highlighter shared/crystal/angle-command region -recurse '<' '%x?<' '>' regions
add-highlighter shared/crystal/pipe-command region '%x?\|' '\|' regions
evaluate-commands %sh[
# Keywords
eval "set -- $kak_quoted_opt_crystal_keywords"
regex="\\b(?:\\Q$1\\E"
shift
for keyword do
regex="$regex|\\Q$keyword\\E"
done
regex="$regex)\\b"
printf 'add-highlighter shared/crystal/code/keywords regex %s 0:keyword\n' "$regex"
# Attributes
eval "set -- $kak_quoted_opt_crystal_attributes"
regex="\\b(?:\\Q$1\\E"
shift
for attribute do
regex="$regex|\\Q$attribute\\E"
done
regex="$regex)\\b"
printf 'add-highlighter shared/crystal/code/attributes regex %s 0:attribute\n' "$regex"
# Symbols
eval "set -- $kak_quoted_opt_crystal_operators"
# Avoid to match modules
regex="(?<!:):(?:\\w+[?!]?"
for operator do
regex="$regex|\\Q$operator\\E"
done
regex="$regex)"
printf 'add-highlighter shared/crystal/code/symbols regex %%(%s) 0:value\n' "$regex"
# Objects
eval "set -- $kak_quoted_opt_crystal_objects"
regex="\\b(?:\\Q$1\\E"
shift
for object do
regex="$regex|\\Q$object\\E"
done
regex="$regex)\\b"
printf 'add-highlighter shared/crystal/code/objects regex %s 0:builtin\n' "$regex"
# Interpolation
# String
# https://crystal-lang.org/reference/syntax_and_semantics/literals/string.html#interpolation
for id in string parenthesis-string bracket-string brace-string angle-string pipe-string heredoc; do
printf "
add-highlighter shared/crystal/$id/fill default-region fill string
add-highlighter shared/crystal/$id/interpolation region -recurse '\\{' '#\\{' '\\}' ref crystal
"
done
# Regular expressions
# https://crystal-lang.org/reference/syntax_and_semantics/literals/regex.html#interpolation
for id in regex parenthesis-regex bracket-regex brace-regex angle-regex pipe-regex; do
printf "
add-highlighter shared/crystal/$id/fill default-region fill meta
add-highlighter shared/crystal/$id/interpolation region -recurse '\\{' '#\\{' '\\}' ref crystal
"
done
# Command
for id in command parenthesis-command bracket-command brace-command angle-command pipe-command; do
printf "
add-highlighter shared/crystal/$id/fill default-region fill meta
add-highlighter shared/crystal/$id/interpolation region -recurse '\\{' '#\\{' '\\}' ref crystal
"
done
]
# Commands
# ‾‾‾‾‾‾‾‾
define-command -hidden crystal-trim-indent %{
evaluate-commands -no-hooks -draft -itersel %{
execute-keys x
# remove trailing white spaces
try %{ execute-keys -draft s \h+$ <ret> d }
}
}
define-command -hidden crystal-indent-on-char %{
evaluate-commands -no-hooks -draft -itersel %{
# align 'else' to 'if/case'
try %{ execute-keys -draft x <a-k> ^\h*else$ <ret> <a-a>i <a-semicolon> <a-?> ^\h*(?:if|case) <ret> <a-S> 1<a-&> }
# align 'elsif' to 'if'
try %{ execute-keys -draft x <a-k> ^\h*elsif$ <ret> <a-a>i <a-semicolon> <a-?> ^\h*(?:if) <ret> <a-S> 1<a-&> }
# align 'when' to 'case'
try %{ execute-keys -draft x <a-k> ^\h*when$ <ret> <a-a>i <a-semicolon> <a-?> ^\h*(?:case) <ret> <a-S> 1<a-&> }
# align 'rescue' to 'begin/def'
try %{ execute-keys -draft x <a-k> ^\h*rescue$ <ret> <a-a>i <a-semicolon> <a-?> ^\h*(?:begin|def) <ret> <a-S> 1<a-&> }
# align 'end' to opening structure
try %{ execute-keys -draft x <a-k> ^\h*end$ <ret> <a-a>i <a-semicolon> <a-?> ^\h*(?:begin|case|class|def|for|if|module|unless|until|while) <ret> <a-S> 1<a-&> }
}
}
define-command -hidden crystal-indent-on-new-line %{
evaluate-commands -no-hooks -draft -itersel %{
# Copy previous line indent
try %{ execute-keys -draft K <a-&> }
# Remove previous line's trailing spaces
try %{ execute-keys -draft k :crystal-trim-indent <ret> }
# Indent after start structure/opening statement
try %{ execute-keys -draft k x <a-k> ^\h*(?:begin|case|class|def|else|elsif|ensure|for|if|module|rescue|unless|until|when|while|.+\bdo$|.+\bdo\h\|.+(?=\|))[^0-9A-Za-z_!?] <ret> j <a-gt> }
}
}
define-command -hidden crystal-insert-on-new-line %[
evaluate-commands -no-hooks -draft -itersel %[
# copy _#_ comment prefix and following white spaces
try %{ execute-keys -draft k x s '^\h*\K#\h*' <ret> y j x<semicolon> P }
# wisely add end structure
evaluate-commands -save-regs x %[
try %{ execute-keys -draft k x s ^ \h + <ret> \" x y } catch %{ reg x '' }
try %[
evaluate-commands -draft %[
# Check if previous line opens a block
execute-keys -draft kx <a-k>^<c-r>x(?:begin|case|class|def|for|if|module|unless|until|while|.+\bdo$|.+\bdo\h\|.+(?=\|))[^0-9A-Za-z_!?]<ret>
# Check that we do not already have an end for this indent level which is first set via `crystal-indent-on-new-line` hook
execute-keys -draft }i J x <a-K> ^<c-r>x(?:end|else|elsif|rescue|when)[^0-9A-Za-z_!?]<ret>
]
execute-keys -draft o<c-r>xend<esc> # insert a new line with containing end
]
]
]
]
define-command -hidden crystal-fetch-keywords %{
set-register dquote %sh{
curl --location https://github.com/crystal-lang/crystal/raw/master/src/compiler/crystal/syntax/lexer.cr |
kak -f '%1scheck_ident_or_keyword\(:(\w+\??), \w+\)<ret>y%<a-R>a<ret><esc><a-_>a<del><esc>|sort<ret>'
}
}
define-command -hidden crystal-fetch-operators %{
set-register dquote %sh{
curl --location https://github.com/crystal-lang/crystal/raw/master/src/compiler/crystal/syntax/parser.cr |
kak -f '/AtomicWithMethodCheck =<ret>x1s:"([^"]+)"<ret>y%<a-R>i''<esc>a''<ret><esc><a-_>a<del><esc>'
}
}
define-command -hidden crystal-fetch-objects %{
set-register dquote %sh{
curl --location https://crystal-lang.org/api/ |
# Remove Top Level Namespace
kak -f '%1sdata-id="github.com/crystal-lang/crystal/(\w+)"<ret>)<a-,>y%<a-R>a<ret><esc><a-_>a<del><esc>'
}
}
§