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%YAML 1.2
---
# http://www.sublimetext.com/docs/3/syntax.html
name: Crystal
comment: |
TODO: unresolved issues
text:
"p << end
print me!
end"
symptoms:
not recognized as a heredoc
solution:
there is no way to distinguish perfectly between the << operator and the start
of a heredoc. Currently, we require assignment to recognize a heredoc. More
refinement is possible.
• Heredocs with indented terminators (<<-) are always distinguishable, however.
• Nested heredocs are not really supportable at present
text:
print <<-'THERE'
This is single quoted.
The above used #{Time.now}
THERE
symtoms:
From Programming Ruby p306; should be a non-interpolated heredoc.
text:
"a\332a"
symptoms:
'\332' is not recognized as slash3.. which should be octal 332.
solution:
plain regexp.. should be easy.
text:
val?(a):p(b)
val?'a':'b'
symptoms:
':p' is recognized as a symbol.. its 2 things ':' and 'p'.
:'b' has same problem.
solution:
ternary operator rule, precedence stuff, symbol rule.
but also consider 'a.b?(:c)' ??
file_extensions:
- cr
first_line_match: ^#!/.*\bcrystal
scope: source.crystal
contexts:
main:
- match: |-
(?x)
^
\s*
(abstract)?
\s*
(class|struct|union)
\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}]+
)
)
scope: meta.class.crystal
captures:
1: keyword.control.class.crystal
2: keyword.control.class.crystal
3: entity.name.type.class.crystal
5: punctuation.separator.crystal
6: support.class.other.type-param.crystal
7: entity.other.inherited-class.crystal
8: punctuation.separator.crystal
9: punctuation.separator.crystal
10: support.class.other.type-param.crystal
11: punctuation.definition.variable.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}]*)'
scope: meta.module.crystal
captures:
1: keyword.control.module.crystal
2: entity.name.type.module.crystal
3: entity.other.inherited-class.module.first.crystal
4: punctuation.separator.inheritance.crystal
5: entity.other.inherited-class.module.second.crystal
6: punctuation.separator.inheritance.crystal
7: entity.other.inherited-class.module.third.crystal
8: punctuation.separator.inheritance.crystal
- match: '^\s*(lib)\s+(([A-Z]\w*(::))?([A-Z]\w*(::))?([A-Z]\w*(::))*[A-Z]\w*)'
scope: meta.lib.crystal
captures:
1: keyword.control.lib.crystal
2: entity.name.type.lib.crystal
3: entity.other.inherited-class.lib.first.crystal
4: punctuation.separator.inheritance.crystal
5: entity.other.inherited-class.lib.second.crystal
6: punctuation.separator.inheritance.crystal
7: entity.other.inherited-class.lib.third.crystal
8: punctuation.separator.inheritance.crystal
- match: (?<!\.)\belse(\s)+if\b
comment: else if is a common mistake carried over from other languages. it works if you put in a second end, but it’s never what you want.
scope: invalid.deprecated.crystal
- match: '(?<!\.)\b(BEGIN|alias|as|begin|case|select|abstract|class|END|ensure|for|fun|if|ifdef|in|lib|module|of|out|private|protected|rescue|struct|with|union|enum|macro|then|type|unless|until|while)\b(?![?!])'
comment: everything being a reserved word, not a value and needing a 'end' is a..
scope: keyword.control.primary.crystal
- match: '(?<!\.)\b(when|else|elsif)\b(?![?!])'
comment: everything being a reserved word, not a value and needing a 'end' is a..
scope: keyword.control.secondary.crystal
- match: '(?<!\.)\b(end)\b(?![?!])'
comment: Give the end keyword an additional scope
scope: keyword.control.secondary.end.crystal
- match: (?<!\.)\bdo\b\s*
comment: contextual smart pair support for block parameters
scope: keyword.control.start-block.crystal
- match: '(?<=\{)(\s+)'
comment: contextual smart pair support
scope: meta.syntax.crystal.start-block
- match: (?<!\.)\b(and|not|or)\b
comment: as above, just doesn't need a 'end' and does a logic operation
scope: keyword.operator.logical.crystal
- match: '(?<!\.)\b(alias|alias_method|break|next|pointerof|typeof|sizeof|instance_sizeof|return|super|yield|uninitialized|forall)\b(?![?!])'
comment: just as above but being not a logical operation
scope: keyword.control.pseudo-method.crystal
- match: '\b(nil|true|false)\b(?![?!])'
scope: constant.language.crystal
- match: '\b(__(DIR|FILE|LINE|END_LINE)__|self)\b(?![?!])'
scope: variable.language.crystal
- match: '\b(initialize|new|loop|include|extend|raise|getter|setter|property|class_getter|class_setter|class_property|describe|context|it|with|delegate|def_hash|def_equals|def_equals_and_hash|forward_missing_to|record|assert_responds_to|spawn|annotation|verbatim)\b[!?]?'
comment: everything being a method but having a special function is a..
scope: keyword.control.special-method.crystal
- match: \b(require)\b
captures:
1: keyword.control.special-method.crystal
push:
- meta_scope: meta.require.crystal
- match: $|(?=#)
captures:
1: keyword.control.special-method.crystal
pop: true
- include: main
- match: '(@)[a-zA-Z_\x{80}-\x{10FFFF}][\w\x{80}-\x{10FFFF}]*[?!=]?'
scope: variable.other.readwrite.instance.crystal
captures:
1: punctuation.definition.variable.crystal
- match: '(@@)[a-zA-Z_\x{80}-\x{10FFFF}][\w\x{80}-\x{10FFFF}]*[?!=]?'
scope: variable.other.readwrite.class.crystal
captures:
1: punctuation.definition.variable.crystal
- match: '(\$)[a-zA-Z_]\w*'
scope: variable.other.readwrite.global.crystal
captures:
1: punctuation.definition.variable.crystal
- match: '(\$)(!|@|&|`|''|\+|\d+|~|=|/|\\|,|;|\.|<|>|_|\*|\$|\?|:|"|-[0adFiIlpv])'
scope: variable.other.readwrite.global.pre-defined.crystal
captures:
1: punctuation.definition.variable.crystal
- match: '\b(ENV)\['
captures:
1: variable.other.constant.crystal
push:
- meta_scope: meta.environment-variable.crystal
- match: '\]'
pop: true
- include: main
- match: '\b[A-Z\x{80}-\x{10FFFF}][\w\x{80}-\x{10FFFF}]*'
scope: support.class.crystal
- match: '\b[A-Z\x{80}-\x{10FFFF}][\w\x{80}-\x{10FFFF}]*\b'
scope: variable.other.constant.crystal
- match: |-
(?x)
(?=def\b) # an optimization to help Oniguruma fail fast
(?<=^|\s)(def)\s+ # the def keyword
( (?>[a-zA-Z_\x{80}-\x{10FFFF}][\x{80}-\x{10FFFF}\w]*(?>\.|::))? # a method name prefix
(?>[a-zA-Z_\x{80}-\x{10FFFF}][\x{80}-\x{10FFFF}\w]*(?>[?!]|=(?!>))? # the method name
|===?|>[>=]?|<=>|<[<=]?|[%&`/\|]|\*\*?|=?~|[-+]@?|\[\](?:=|\?)?) ) # …or an operator method
\s*(\() # the openning parenthesis for arguments
comment: the method pattern comes from the symbol pattern, see there for a explaination
captures:
1: keyword.control.def.crystal
2: entity.name.function.crystal
3: punctuation.definition.parameters.crystal
push:
- meta_scope: meta.function.method.with-arguments.crystal
- meta_content_scope: variable.parameter.function.crystal
- match: \)\s*$|\)\s*:|\)\s*;
captures:
0: punctuation.definition.parameters.crystal
pop: true
- include: main
- match: |-
(?x)
(?=def\b) # an optimization to help Oniguruma fail fast
(?<=^|\s)(def)\s+ # the def keyword
( (?>[a-zA-Z_\x{80}-\x{10FFFF}][\w\x{80}-\x{10FFFF}]*(?>\.|::))? # a method name prefix
(?>[a-zA-Z_\x{80}-\x{10FFFF}][\w\x{80}-\x{10FFFF}]*(?>[?!]|=(?!>))? # the method name
|===?|>[>=]?|<=>|<[<=]?|[%&`/\|]|\*\*?|=?~|[-+]@?|\[\](?:=|\?)?) ) # …or an operator method
[ \t] # the space separating the arguments
(?=[ \t]*[^\s#;]) # make sure arguments and not a comment follow
comment: same as the previous rule, but without parentheses around the arguments
captures:
1: keyword.control.def.crystal
2: entity.name.function.crystal
push:
- meta_scope: meta.function.method.with-arguments.crystal
- meta_content_scope: variable.parameter.function.crystal
- match: $
pop: true
- include: main
- match: |-
(?x)
(?=def\b) # an optimization to help Oniguruma fail fast
(?<=^|\s)(def)\b # the def keyword
( \s+ # an optional group of whitespace followed by…
( (?>[a-zA-Z_\x{80}-\x{10FFFF}][\w\x{80}-\x{10FFFF}]*(?>\.|::))? # a method name prefix
(?>[a-zA-Z_\x{80}-\x{10FFFF}][\w\x{80}-\x{10FFFF}]*(?>[?!]|=(?!>))? # the method name
|===?|>[>=]?|<=>|<[<=]?|[%&`/\|]|\*\*?|=?~|[-+]@?|\[\](?:=|\?)?) ) )? # …or an operator method
comment: the optional name is just to catch the def also without a method-name
scope: meta.function.method.without-arguments.crystal
captures:
1: keyword.control.def.crystal
3: entity.name.function.crystal
- match: '\b(0[xX]\h(?>_?\h)*|\d(?>_?\d)*(\.(?![^[:space:][:digit:]])(?>_?\d)*)?([eE][-+]?\d(?>_?\d)*)?|0[bB][01]+|0o[0-7]+)(_?(u8|u16|u32|u64|i8|i16|i32|i64|f32|f64))?\b'
scope: constant.numeric.crystal
- match: ":'"
captures:
0: punctuation.definition.constant.crystal
push:
- meta_scope: constant.other.symbol.single-quoted.crystal
- match: "'"
captures:
0: punctuation.definition.constant.crystal
pop: true
- match: '\\[''\\]'
scope: constant.character.escape.crystal
- match: ':"'
captures:
0: punctuation.definition.constant.crystal
push:
- meta_scope: constant.other.symbol.double-quoted.crystal
- match: '"'
captures:
0: punctuation.definition.constant.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- match: /=
comment: Needs higher precidence than regular expressions.
scope: keyword.operator.assignment.augmented.crystal
- match: "'"
comment: single quoted string (does not allow interpolation)
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.quoted.single.crystal
- match: "'"
captures:
0: punctuation.definition.string.end.crystal
pop: true
- match: \\'|\\\\
scope: constant.character.escape.crystal
- match: '"'
comment: double quoted string (allows for interpolation)
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.quoted.double.crystal
- match: '"'
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- match: "`"
comment: execute string (allows for interpolation)
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.interpolated.crystal
- match: "`"
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- match: '%x\{'
comment: execute string (allow for interpolation)
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.interpolated.crystal
- match: '\}'
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- include: nest_curly_i
- match: '%x\['
comment: execute string (allow for interpolation)
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.interpolated.crystal
- match: '\]'
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- include: nest_brackets_i
- match: '%x\<'
comment: execute string (allow for interpolation)
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.interpolated.crystal
- match: \>
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- include: nest_ltgt_i
- match: '%x\('
comment: execute string (allow for interpolation)
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.interpolated.crystal
- match: \)
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- include: nest_parens_i
- match: '%x([^\w])'
comment: execute string (allow for interpolation)
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.interpolated.crystal
- match: \1
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- match: |-
(?x)
(?:
^ # beginning of line
| (?<= # or look-behind on:
[=>~(?:\[,|&;]
| [\s;]if\s # keywords
| [\s;]elsif\s
| [\s;]while\s
| [\s;]unless\s
| [\s;]when\s
| [\s;]assert_match\s
| [\s;]or\s # boolean opperators
| [\s;]and\s
| [\s;]not\s
| [\s.]index\s # methods
| [\s.]scan\s
| [\s.]sub\s
| [\s.]sub!\s
| [\s.]gsub\s
| [\s.]gsub!\s
| [\s.]match\s
)
| (?<= # or a look-behind with line anchor:
^when\s # duplication necessary due to limits of regex
| ^if\s
| ^elsif\s
| ^while\s
| ^unless\s
)
)
\s*((/))(?![*+{}?])
comment: |
regular expressions (normal)
we only start a regexp if the character before it (excluding whitespace)
is what we think is before a regexp
captures:
1: string.regexp.classic.crystal
2: punctuation.definition.string.crystal
push:
- meta_content_scope: string.regexp.classic.crystal
- match: "((/[eimnosux]*))"
captures:
1: string.regexp.classic.crystal
2: punctuation.definition.string.crystal
pop: true
- include: regex_sub
- match: '%r\{'
comment: regular expressions (literal)
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.regexp.mod-r.crystal
- match: '\}[eimnosux]*'
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: regex_sub
- include: nest_curly_r
- match: '%r\['
comment: regular expressions (literal)
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.regexp.mod-r.crystal
- match: '\][eimnosux]*'
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: regex_sub
- include: nest_brackets_r
- match: '%r\('
comment: regular expressions (literal)
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.regexp.mod-r.crystal
- match: '\)[eimnosux]*'
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: regex_sub
- include: nest_parens_r
- match: '%r\<'
comment: regular expressions (literal)
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.regexp.mod-r.crystal
- match: '\>[eimnosux]*'
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: regex_sub
- include: nest_ltgt_r
- match: '%r([^\w])'
comment: regular expressions (literal)
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.regexp.mod-r.crystal
- match: '\1[eimnosux]*'
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: regex_sub
- match: '%[QWSR]?\('
comment: literal capable of interpolation ()
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.quoted.other.literal.upper.crystal
- match: \)
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- include: nest_parens_i
- match: '%[QWSR]?\['
comment: "literal capable of interpolation []"
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.quoted.other.literal.upper.crystal
- match: '\]'
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- include: nest_brackets_i
- match: '%[QWSR]?\<'
comment: literal capable of interpolation <>
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.quoted.other.literal.upper.crystal
- match: \>
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- include: nest_ltgt_i
- match: '%[QWSR]?\{'
comment: "literal capable of interpolation -- {}"
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.quoted.double.crystal.mod
- match: '\}'
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- include: nest_curly_i
- match: '%[QWSR]([^\w])'
comment: literal capable of interpolation -- wildcard
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.quoted.other.literal.upper.crystal
- match: \1
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- match: '%[qws]\('
comment: literal incapable of interpolation -- ()
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.quoted.other.literal.lower.crystal
- match: \)
captures:
0: punctuation.definition.string.end.crystal
pop: true
- match: \\\)|\\\\
scope: constant.character.escape.crystal
- include: nest_parens
- match: '%[qws]\<'
comment: literal incapable of interpolation -- <>
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.quoted.other.literal.lower.crystal
- match: \>
captures:
0: punctuation.definition.string.end.crystal
pop: true
- match: \\\>|\\\\
scope: constant.character.escape.crystal
- include: nest_ltgt
- match: '%[qws]\['
comment: "literal incapable of interpolation -- []"
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.quoted.other.literal.lower.crystal
- match: '\]'
captures:
0: punctuation.definition.string.end.crystal
pop: true
- match: '\\\]|\\\\'
scope: constant.character.escape.crystal
- include: nest_brackets
- match: '%[qws]\{'
comment: "literal incapable of interpolation -- {}"
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.quoted.other.literal.lower.crystal
- match: '\}'
captures:
0: punctuation.definition.string.end.crystal
pop: true
- match: '\\\}|\\\\'
scope: constant.character.escape.crystal
- include: nest_curly
- match: '%[qws]([^\w])'
comment: literal incapable of interpolation -- wildcard
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.quoted.other.literal.lower.crystal
- match: \1
captures:
0: punctuation.definition.string.end.crystal
pop: true
- match: \\.
comment: Cant be named because its not neccesarily an escape.
- match: '(?<!:)(:)(?>[a-zA-Z_\x{80}-\x{10FFFF}][\w\x{80}-\x{10FFFF}]*(?>[?!]|=(?![>=]))?|===?|>[>=]?|<[<=]?|<=>|[%&`/\|]|\*\*?|=?~|[-+]@?|\[\](?:=|\?)?|@@?[a-zA-Z_\x{80}-\x{10FFFF}][\w\x{80}-\x{10FFFF}]*|!=?(?![?!]))'
comment: symbols
scope: constant.other.symbol.crystal
captures:
1: punctuation.definition.constant.crystal
- match: '(?>[a-zA-Z_\x{80}-\x{10FFFF}][\w\x{80}-\x{10FFFF}]*(?>[?!])?)(:)(?!:)'
comment: symbols
scope: constant.other.symbol.crystal.19syntax
captures:
1: punctuation.definition.constant.crystal
- match: '(?:^[ \t]+)?(#).*$\n?'
scope: comment.line.number-sign.crystal
captures:
1: punctuation.definition.comment.crystal
- match: ^__END__\n
comment: __END__ marker
captures:
0: string.unquoted.program-block.crystal
push:
- meta_content_scope: text.plain
- match: (?=not)impossible
captures:
0: string.unquoted.program-block.crystal
pop: true
- match: (?=<?xml|<(?i:html\b)|!DOCTYPE (?i:html\b))
push:
- meta_scope: text.html.embedded.crystal
- match: (?=not)impossible
pop: true
- include: scope:text.html.basic
- match: '(?><<-("?)((?:[_\w]+_|)HTML)\b\1)'
comment: heredoc with embedded HTML and indented terminator
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.unquoted.embedded.html.crystal
- meta_content_scope: text.html.embedded.crystal
- match: \s*\2$
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: heredoc
- include: scope:text.html.basic
- include: interpolated_crystal
- include: escaped_char
- match: '(?><<-("?)((?:[_\w]+_|)SQL)\b\1)'
comment: heredoc with embedded SQL and indented terminator
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.unquoted.embedded.sql.crystal
- meta_content_scope: text.sql.embedded.crystal
- match: \s*\2$
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: heredoc
- include: scope:source.sql
- include: interpolated_crystal
- include: escaped_char
- match: '(?><<-("?)((?:[_\w]+_|)CSS)\b\1)'
comment: heredoc with embedded css and intented terminator
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.unquoted.embedded.css.crystal
- meta_content_scope: text.css.embedded.crystal
- match: \s*\2$
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: heredoc
- include: scope:source.css
- include: interpolated_crystal
- include: escaped_char
- match: '(?><<-("?)((?:[_\w]+_|)CPP)\b\1)'
comment: heredoc with embedded c++ and intented terminator
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.unquoted.embedded.cplusplus.crystal
- meta_content_scope: text.c++.embedded.crystal
- match: \s*\2$
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: heredoc
- include: scope:source.c++
- include: interpolated_crystal
- include: escaped_char
- match: '(?><<-("?)((?:[_\w]+_|)C)\b\1)'
comment: heredoc with embedded c++ and intented terminator
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.unquoted.embedded.c.crystal
- meta_content_scope: text.c.embedded.crystal
- match: \s*\2$
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: heredoc
- include: scope:source.c
- include: interpolated_crystal
- include: escaped_char
- match: '(?><<-("?)((?:[_\w]+_|)(?:JS|JAVASCRIPT))\b\1)'
comment: heredoc with embedded javascript and intented terminator
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.unquoted.embedded.js.crystal
- meta_content_scope: text.js.embedded.crystal
- match: \s*\2$
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: heredoc
- include: scope:source.js
- include: interpolated_crystal
- include: escaped_char
- match: '(?><<-("?)((?:[_\w]+_|)JQUERY)\b\1)'
comment: heredoc with embedded javascript and intented terminator
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.unquoted.embedded.js.crystal
- meta_content_scope: text.js.embedded.crystal
- match: \s*\2$
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: heredoc
- include: scope:source.js
- include: interpolated_crystal
- include: escaped_char
- match: '(?><<-("?)((?:[_\w]+_|)(?:SH|SHELL))\b\1)'
comment: heredoc with embedded shell and intented terminator
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.unquoted.embedded.shell.crystal
- meta_content_scope: text.shell.embedded.crystal
- match: \s*\2$
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: heredoc
- include: scope:source.shell
- include: interpolated_crystal
- include: escaped_char
- match: '(?><<-("?)((?:[_\w]+_|)RUBY)\b\1)'
comment: heredoc with embedded crystal and intented terminator
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.unquoted.embedded.crystal.crystal
- meta_content_scope: text.crystal.embedded.crystal
- match: \s*\2$
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: heredoc
- include: scope:source.crystal
- include: interpolated_crystal
- include: escaped_char
- match: (?>\=\s*<<(\w+))
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.unquoted.heredoc.crystal
- match: ^\1$
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: heredoc
- include: interpolated_crystal
- include: escaped_char
- match: (?><<-(\w+))
comment: heredoc with indented terminator
captures:
0: punctuation.definition.string.begin.crystal
push:
- meta_scope: string.unquoted.heredoc.crystal
- match: \s*\1$
captures:
0: punctuation.definition.string.end.crystal
pop: true
- include: heredoc
- include: interpolated_crystal
- include: escaped_char
- match: '(?<=\{|do|\{\s|do\s)(\|)'
captures:
1: punctuation.separator.variable.crystal
push:
- match: (\|)
captures:
1: punctuation.separator.variable.crystal
pop: true
- match: "[_a-zA-Z][_a-zA-Z0-9]*"
scope: variable.other.block.crystal
- match: ","
scope: punctuation.separator.variable.crystal
- match: "=>"
scope: punctuation.separator.key-value
- match: '<<=|%=|&=|\*=|\*\*=|\+=|\-=|\^=|\|{1,2}=|<<'
scope: keyword.operator.assignment.augmented.crystal
- match: '<=>|<(?!<|=)|>(?!<|=|>)|<=|>=|===|==|=~|!=|!~|(?<=[ \t])\?'
scope: keyword.operator.comparison.crystal
- match: '(?<=[ \t])!+|\bnot\b|&&|\band\b|\|\||\bor\b|\^'
scope: keyword.operator.logical.crystal
- match: '(\{\%|\%\}|\{\{|\}\})'
scope: keyword.operator.macro.crystal
- match: (%|&|\*\*|\*|\+|\-|/)
scope: keyword.operator.arithmetic.crystal
- match: "="
scope: keyword.operator.assignment.crystal
- match: \||~|>>
scope: keyword.operator.other.crystal
- match: ":"
scope: punctuation.separator.other.crystal
- match: \;
scope: punctuation.separator.statement.crystal
- match: ","
scope: punctuation.separator.object.crystal
- match: '\.|::'
scope: punctuation.separator.method.crystal
- match: '\{|\}'
scope: punctuation.section.scope.crystal
- match: '\[|\]'
scope: punctuation.section.array.crystal
- match: \(|\)
scope: punctuation.section.function.crystal
escaped_char:
- match: '\\(?:[0-7]{1,3}|x[\da-fA-F]{1,2}|.)'
scope: constant.character.escape.crystal
heredoc:
- match: ^<<-?\w+
push:
- match: $
pop: true
- include: main
interpolated_crystal:
- match: '#\{(\})'
scope: source.crystal.embedded.source
captures:
0: punctuation.section.embedded.crystal
1: source.crystal.embedded.source.empty
- match: '#\{'
captures:
0: punctuation.section.embedded.crystal
push:
- meta_scope: source.crystal.embedded.source
- match: '\}'
captures:
0: punctuation.section.embedded.crystal
pop: true
- include: nest_curly_and_self
- include: main
- match: '(#@)[a-zA-Z_]\w*'
scope: variable.other.readwrite.instance.crystal
captures:
1: punctuation.definition.variable.crystal
- match: '(#@@)[a-zA-Z_]\w*'
scope: variable.other.readwrite.class.crystal
captures:
1: punctuation.definition.variable.crystal
- match: '(#\$)[a-zA-Z_]\w*'
scope: variable.other.readwrite.global.crystal
captures:
1: punctuation.definition.variable.crystal
nest_brackets:
- match: '\['
captures:
0: punctuation.section.scope.crystal
push:
- match: '\]'
captures:
0: punctuation.section.scope.crystal
pop: true
- include: nest_brackets
nest_brackets_i:
- match: '\['
captures:
0: punctuation.section.scope.crystal
push:
- match: '\]'
captures:
0: punctuation.section.scope.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- include: nest_brackets_i
nest_brackets_r:
- match: '\['
captures:
0: punctuation.section.scope.crystal
push:
- match: '\]'
captures:
0: punctuation.section.scope.crystal
pop: true
- include: regex_sub
- include: nest_brackets_r
nest_curly:
- match: '\{'
captures:
0: punctuation.section.scope.crystal
push:
- match: '\}'
captures:
0: punctuation.section.scope.crystal
pop: true
- include: nest_curly
nest_curly_and_self:
- match: '\{'
captures:
0: punctuation.section.scope.crystal
push:
- match: '\}'
captures:
0: punctuation.section.scope.crystal
pop: true
- include: nest_curly_and_self
- include: main
nest_curly_i:
- match: '\{'
captures:
0: punctuation.section.scope.crystal
push:
- match: '\}'
captures:
0: punctuation.section.scope.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- include: nest_curly_i
nest_curly_r:
- match: '\{'
captures:
0: punctuation.section.scope.crystal
push:
- match: '\}'
captures:
0: punctuation.section.scope.crystal
pop: true
- include: regex_sub
- include: nest_curly_r
nest_ltgt:
- match: \<
captures:
0: punctuation.section.scope.crystal
push:
- match: \>
captures:
0: punctuation.section.scope.crystal
pop: true
- include: nest_ltgt
nest_ltgt_i:
- match: \<
captures:
0: punctuation.section.scope.crystal
push:
- match: \>
captures:
0: punctuation.section.scope.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- include: nest_ltgt_i
nest_ltgt_r:
- match: \<
captures:
0: punctuation.section.scope.crystal
push:
- match: \>
captures:
0: punctuation.section.scope.crystal
pop: true
- include: regex_sub
- include: nest_ltgt_r
nest_parens:
- match: \(
captures:
0: punctuation.section.scope.crystal
push:
- match: \)
captures:
0: punctuation.section.scope.crystal
pop: true
- include: nest_parens
nest_parens_i:
- match: \(
captures:
0: punctuation.section.scope.crystal
push:
- match: \)
captures:
0: punctuation.section.scope.crystal
pop: true
- include: interpolated_crystal
- include: escaped_char
- include: nest_parens_i
nest_parens_r:
- match: \(
captures:
0: punctuation.section.scope.crystal
push:
- match: \)
captures:
0: punctuation.section.scope.crystal
pop: true
- include: regex_sub
- include: nest_parens_r
regex_sub:
- include: interpolated_crystal
- include: escaped_char
- match: '(\{)\d+(,\d+)?(\})'
scope: string.regexp.arbitrary-repitition.crystal
captures:
1: punctuation.definition.arbitrary-repitition.crystal
3: punctuation.definition.arbitrary-repitition.crystal
- match: '\[(?:\^?\])?'
captures:
0: punctuation.definition.character-class.crystal
push:
- meta_scope: string.regexp.character-class.crystal
- match: '\]'
captures:
0: punctuation.definition.character-class.crystal
pop: true
- include: escaped_char
- match: \(
captures:
0: punctuation.definition.group.crystal
push:
- meta_scope: string.regexp.group.crystal
- match: \)
captures:
0: punctuation.definition.group.crystal
pop: true
- include: regex_sub
- match: '(?<=^|\s)(#)\s[[a-zA-Z0-9,. \t?!-][^\x{00}-\x{7F}]]*$'
comment: We are restrictive in what we allow to go after the comment character to avoid false positives, since the availability of comments depend on regexp flags.
scope: comment.line.number-sign.crystal
captures:
1: punctuation.definition.comment.crystal
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