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crystal.json
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{
"information_for_contributors": [
"This file is based on https://github.com/Microsoft/vscode/blob/master/extensions/ruby/syntaxes/ruby.tmLanguage.json"
],
"version": "https://github.com/Microsoft/vscode/blob/3f1f36333d3453f67a36b6bfb1206e9159e9c4f0/extensions/ruby/syntaxes/ruby.tmLanguage.json",
"name": "Crystal",
"scopeName": "source.crystal",
"fileTypes": [
"cr"
],
"firstLineMatch": "^#!\/.*\\bcrystal",
"foldingStartMarker": "(?x)^(\\s*+(annotation|module|class|struct|union|enum|def(?!.*\\bend\\s*$)|unless|if|case|begin|for|while|until|^=begin|(\"(\\\\.|[^\"])*+\"|'(\\\\.|[^'])*+'|[^#\"'])*(\\s(do|begin|case)|(?<!\\$)[-+=&|*\/~%^<>~]\\s*+(if|unless)))\\b(?![^;]*+;.*?\\bend\\b)|(\"(\\\\.|[^\"])*+\"|'(\\\\.|[^'])*+'|[^#\"'])*(\\{(?![^}]*+\\})|\\[(?![^\\]]*+\\]))).*$|[#].*?\\(fold\\)\\s*+$",
"foldingStopMarker": "(?x)((^|;)\\s*+end\\s*+([#].*)?$|(^|;)\\s*+end\\..*$|^\\s*+[}\\]] ,?\\s*+([#].*)?$|[#].*?\\(end\\)\\s*+$|^=end)",
"keyEquivalent": "^~R",
"patterns": [
{
"captures": {
"1": {
"name": "keyword.control.class.crystal"
},
"2": {
"name": "keyword.control.class.crystal"
},
"3": {
"name": "entity.name.type.class.crystal"
},
"5": {
"name": "punctuation.separator.crystal"
},
"6": {
"name": "support.class.other.type-param.crystal"
},
"7": {
"name": "entity.other.inherited-class.crystal"
},
"8": {
"name": "punctuation.separator.crystal"
},
"9": {
"name": "punctuation.separator.crystal"
},
"10": {
"name": "support.class.other.type-param.crystal"
},
"11": {
"name": "punctuation.definition.variable.crystal"
}
},
"match": "(?x)^\\s*(abstract)?\\s*(class|struct|union|annotation|enum)\\s+(([.A-Z_:\\x{80}-\\x{10FFFF}][.\\w:\\x{80}-\\x{10FFFF}]*(\\(([,\\s.a-zA-Z0-9_:\\x{80}-\\x{10FFFF}]+)\\))?(\\s*(<)\\s*[.:A-Z\\x{80}-\\x{10FFFF}][.:\\w\\x{80}-\\x{10FFFF}]*(\\(([.a-zA-Z0-9_:]+\\s,)\\))?)?)|((<<)\\s*[.A-Z0-9_:\\x{80}-\\x{10FFFF}]+))",
"name": "meta.class.crystal"
},
{
"captures": {
"1": {
"name": "keyword.control.module.crystal"
},
"2": {
"name": "entity.name.type.module.crystal"
},
"3": {
"name": "entity.other.inherited-class.module.first.crystal"
},
"4": {
"name": "punctuation.separator.inheritance.crystal"
},
"5": {
"name": "entity.other.inherited-class.module.second.crystal"
},
"6": {
"name": "punctuation.separator.inheritance.crystal"
},
"7": {
"name": "entity.other.inherited-class.module.third.crystal"
},
"8": {
"name": "punctuation.separator.inheritance.crystal"
}
},
"match": "^\\s*(module)\\s+(([A-Z\\x{80}-\\x{10FFFF}][\\w\\x{80}-\\x{10FFFF}]*(::))?([A-Z\\x{80}-\\x{10FFFF}][\\w\\x{80}-\\x{10FFFF}]*(::))?([A-Z\\x{80}-\\x{10FFFF}][\\w\\x{80}-\\x{10FFFF}]*(::))*[A-Z\\x{80}-\\x{10FFFF}][\\w\\x{80}-\\x{10FFFF}]*)",
"name": "meta.module.crystal"
},
{
"captures": {
"1": {
"name": "keyword.control.lib.crystal"
},
"2": {
"name": "entity.name.type.lib.crystal"
},
"3": {
"name": "entity.other.inherited-class.lib.first.crystal"
},
"4": {
"name": "punctuation.separator.inheritance.crystal"
},
"5": {
"name": "entity.other.inherited-class.lib.second.crystal"
},
"6": {
"name": "punctuation.separator.inheritance.crystal"
},
"7": {
"name": "entity.other.inherited-class.lib.third.crystal"
},
"8": {
"name": "punctuation.separator.inheritance.crystal"
}
},
"match": "^\\s*(lib)\\s+(([A-Z]\\w*(::))?([A-Z]\\w*(::))?([A-Z]\\w*(::))*[A-Z]\\w*)",
"name": "meta.lib.crystal"
},
{
"captures": {
"1": {
"name": "keyword.control.lib.type.crystal"
},
"2": {
"name": "entity.name.lib.type.crystal"
},
"3": {
"name": "keyword.control.lib.crystal"
},
"4": {
"name": "entity.name.lib.type.value.crystal"
}
},
"comment": "type in lib",
"match": "(?<!\\.)\\b(type)\\s+([A-Z]\\w+)\\s*(=)\\s*(.+)",
"name": "meta.lib.type.crystal"
},
{
"comment": "everything being a reserved word, not a value and needing a 'end' is a..",
"match": "(?<!\\.)\\b(fun|begin|case|class|else|elsif|end|ensure|enum|for|if|macro|module|rescue|struct|then|union|unless|until|when|while)\\b(?![?!:])",
"name": "keyword.control.crystal"
},
{
"comment": "everything being a reserved word, not a value and not needing a 'end' is a..",
"match": "(?<!\\.)\\b(abstract|alias|asm|break|extend|in|include|next|of|private|protected|struct|return|select|super|with|yield)\\b(?![?!:])",
"name": "keyword.control.primary.crystal"
},
{
"comment": "contextual smart pair support for block parameters",
"match": "(?<!\\.)\\bdo\\b\\s*",
"name": "keyword.control.start-block.crystal"
},
{
"comment": "contextual smart pair support",
"match": "(?<=\\{)(\\s+)",
"name": "meta.syntax.crystal.start-block"
},
{
"comment": "Just as above but being not a logical operation",
"match": "(?<!\\.)\\b(pointerof|typeof|sizeof|instance_sizeof|offsetof|previous_def|forall|out|uninitialized)\\b(?![?!:])|\\.(is_a\\?|nil\\?|responds_to\\?|as\\?|as\b)",
"name": "keyword.control.pseudo-method.crystal"
},
{
"match": "\\bnil\\b(?![?!:])",
"name": "constant.language.nil.crystal"
},
{
"match": "\\b(true|false)\\b(?![?!:])",
"name": "constant.language.boolean.crystal"
},
{
"match": "\\b(__(DIR|FILE|LINE|END_LINE)__)\\b(?![?!:])",
"name": "variable.language.crystal"
},
{
"match": "\\b(self)\\b(?![?!:])",
"name": "variable.language.self.crystal"
},
{
"comment": "https://crystal-lang.org/api/0.36.1/Object.html#macro-summary",
"match": "(?<!\\.)\\b(((class_)?((getter|property)\\b[!?]?|setter\\b))|(def_(clone|equals|equals_and_hash|hash)|delegate|forward_missing_to)\\b)(?![?!:])",
"name": "support.function.kernel.crystal"
},
{
"begin": "\\b(require)\\b",
"captures": {
"1": {
"name": "keyword.other.special-method.crystal"
}
},
"end": "$|(?=#)",
"name": "meta.require.crystal",
"patterns": [
{
"include": "$self"
}
]
},
{
"captures": {
"1": {
"name": "punctuation.definition.variable.crystal"
}
},
"match": "(@)[a-zA-Z_\\x{80}-\\x{10FFFF}][\\w\\x{80}-\\x{10FFFF}]*[?!=]?",
"name": "variable.other.readwrite.instance.crystal"
},
{
"captures": {
"1": {
"name": "punctuation.definition.variable.crystal"
}
},
"match": "(@@)[a-zA-Z_\\x{80}-\\x{10FFFF}][\\w\\x{80}-\\x{10FFFF}]*[?!=]?",
"name": "variable.other.readwrite.class.crystal"
},
{
"captures": {
"1": {
"name": "punctuation.definition.variable.crystal"
}
},
"match": "(\\$)[a-zA-Z_]\\w*",
"name": "variable.other.readwrite.global.crystal"
},
{
"captures": {
"1": {
"name": "punctuation.definition.variable.crystal"
}
},
"match": "(?!%[Qxrqwi]?[\\(\\[\\{\\<\\|])%([a-zA-Z_]\\w*\\.)*[a-zA-Z_]\\w*",
"name": "variable.other.readwrite.fresh.crystal"
},
{
"captures": {
"1": {
"name": "punctuation.definition.variable.crystal"
}
},
"match": "(\\$)(!|@|&|`|'|\\+|\\d+|~|=|\/|\\\\|,|;|\\.|<|>|_|\\*|\\$|\\?|:|\"|-[0adFiIlpv])",
"name": "variable.other.readwrite.global.pre-defined.crystal"
},
{
"begin": "\\b(ENV)\\[",
"beginCaptures": {
"1": {
"name": "variable.other.constant.crystal"
}
},
"end": "\\]",
"name": "meta.environment-variable.crystal",
"patterns": [
{
"include": "$self"
}
]
},
{
"match": "\\b[A-Z\\x{80}-\\x{10FFFF}][\\w\\x{80}-\\x{10FFFF}]*",
"name": "support.class.crystal",
"comment": "Literals name of Crystal"
},
{
"match": "(?<!\\.)\\b(abort|at_exit|caller|exit|gets|loop|main|p|pp|print|printf|puts|raise|rand|read_line|sleep|spawn|sprintf|system|debugger|record|spawn)\\b(?![?!:])",
"name": "support.function.kernel.crystal",
"comment": "Fetch from https://crystal-lang.org/api/0.36.1/toplevel.html"
},
{
"match": "\\b[_A-Z]+\\b",
"name": "variable.other.constant.crystal",
"comment": "Constant name in any where"
},
{
"begin": "(?x)\n(?=def\\b) # optimization to help Oniguruma fail fast\n(?<=^|\\s)(def)\\s+\n(\n (?>[a-zA-Z_]\\w*(?>\\.|::))? # method prefix\n (?> # method name\n [a-zA-Z_]\\w*(?>[?!]|=(?!>))?\n |\n \\^|===?|!=|>[>=]?|<=>|<[<=]?|[%&`/\\|]|\\*\\*?|=?~|[-+]@?|\\[][?=]?|\\[]=?\n )\n)\n\\s*(\\()",
"beginCaptures": {
"1": {
"name": "keyword.control.def.crystal"
},
"2": {
"name": "entity.name.function.crystal"
},
"3": {
"name": "punctuation.definition.parameters.crystal"
}
},
"comment": "The method pattern comes from the symbol pattern. See there for an explanation.",
"end": "\\)",
"endCaptures": {
"0": {
"name": "punctuation.definition.parameters.crystal"
}
},
"name": "meta.function.method.with-arguments.crystal",
"patterns": [
{
"begin": "(?![\\s,)])",
"end": "(?=,|\\)\\s*$)",
"patterns": [
{
"captures": {
"1": {
"name": "storage.type.variable.crystal"
},
"2": {
"name": "constant.other.symbol.hashkey.parameter.function.crystal"
},
"3": {
"name": "punctuation.definition.constant.hashkey.crystal"
},
"4": {
"name": "variable.parameter.function.crystal"
}
},
"match": "\\G([&*]?)(?:([_a-zA-Z]\\w*(:))|([_a-zA-Z]\\w*))"
},
{
"include": "$self"
}
]
}
]
},
{
"captures": {
"1": {
"name": "keyword.control.def.crystal"
},
"3": {
"name": "entity.name.function.crystal"
}
},
"comment": " the optional name is just to catch the def also without a method-name",
"match": "(?x)\n(?=def\\b) # optimization to help Oniguruma fail fast\n(?<=^|\\s)(def)\\b\n(\n \\s+\n (\n (?>[a-zA-Z_]\\w*(?>\\.|::))? # method prefix\n (?> # method name\n [a-zA-Z_]\\w*(?>[?!]|=(?!>))?\n |\n \\^|===?|!=|>[>=]?|<=>|<[<=]?|[%&`/\\|]|\\*\\*?|=?~|[-+]@?|\\[][?=]?|\\[]=?\n )\n )\n)?",
"name": "meta.function.method.without-arguments.crystal"
},
{
"comment": "Floating point literal (fraction)",
"name": "constant.numeric.float.crystal",
"match": "\\b[0-9][0-9_]*\\.[0-9][0-9_]*([eE][+-]?[0-9_]+)?(f32|f64)?\\b"
},
{
"comment": "Floating point literal (exponent)",
"name": "constant.numeric.float.crystal",
"match": "\\b[0-9][0-9_]*(\\.[0-9][0-9_]*)?[eE][+-]?[0-9_]+(f32|f64)?\\b"
},
{
"comment": "Floating point literal (typed)",
"name": "constant.numeric.float.crystal",
"match": "\\b[0-9][0-9_]*(\\.[0-9][0-9_]*)?([eE][+-]?[0-9_]+)?(f32|f64)\\b"
},
{
"comment": "Integer literal (decimal)",
"name": "constant.numeric.integer.decimal.crystal",
"match": "\\b(?!0[0-9])[0-9][0-9_]*([ui](8|16|32|64|128))?\\b"
},
{
"comment": "Integer literal (hexadecimal)",
"name": "constant.numeric.integer.hexadecimal.crystal",
"match": "\\b0x[a-fA-F0-9_]+([ui](8|16|32|64|128))?\\b"
},
{
"comment": "Integer literal (octal)",
"name": "constant.numeric.integer.octal.crystal",
"match": "\\b0o[0-7_]+([ui](8|16|32|64|128))?\\b"
},
{
"comment": "Integer literal (binary)",
"name": "constant.numeric.integer.binary.crystal",
"match": "\\b0b[01_]+([ui](8|16|32|64|128))?\\b"
},
{
"begin": ":'",
"beginCaptures": {
"0": {
"name": "punctuation.definition.symbol.begin.crystal"
}
},
"comment": "symbol literal with '' delimiter",
"end": "'",
"endCaptures": {
"0": {
"name": "punctuation.definition.symbol.end.crystal"
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