--- 
name: Ruby
fileTypes: 
- rb
- rbx
- rjs
- Rakefile
- rake
- cgi
- fcgi
- gemspec
firstLineMatch: ^#!/.*\bruby\b
scopeName: source.ruby
repository: 
  nest_brackets: 
    captures: 
      "0": 
        name: punctuation.section.scope.ruby
    begin: \[
    end: \]
    patterns: 
    - include: "#nest_brackets"
  interpolated_ruby: 
    patterns: 
    - name: source.ruby.embedded.source
      captures: 
        "0": 
          name: punctuation.section.embedded.ruby
        "1": 
          name: source.ruby.embedded.source.empty
      match: "#\\{(\\})"
    - name: source.ruby.embedded.source
      captures: 
        "0": 
          name: punctuation.section.embedded.ruby
      begin: "#\\{"
      end: \}
      patterns: 
      - include: "#nest_curly_and_self"
      - include: $self
    - name: variable.other.readwrite.instance.ruby
      captures: 
        "1": 
          name: punctuation.definition.variable.ruby
      match: (#@)[a-zA-Z_]\w*
    - name: variable.other.readwrite.class.ruby
      captures: 
        "1": 
          name: punctuation.definition.variable.ruby
      match: (#@@)[a-zA-Z_]\w*
    - name: variable.other.readwrite.global.ruby
      captures: 
        "1": 
          name: punctuation.definition.variable.ruby
      match: (#\$)[a-zA-Z_]\w*
  escaped_char: 
    name: constant.character.escape.ruby
    match: \\(?:0\d{1,2}|x[\da-fA-F]{1,2}|.)
  regex_sub: 
    patterns: 
    - include: "#interpolated_ruby"
    - include: "#escaped_char"
    - name: string.regexp.arbitrary-repitition.ruby
      captures: 
        "1": 
          name: punctuation.definition.arbitrary-repitition.ruby
        "3": 
          name: punctuation.definition.arbitrary-repitition.ruby
      match: (\{)\d+(,\d+)?(\})
    - name: string.regexp.character-class.ruby
      captures: 
        "0": 
          name: punctuation.definition.character-class.ruby
      begin: \[(?:\^?\])?
      end: \]
      patterns: 
      - include: "#escaped_char"
    - name: string.regexp.group.ruby
      captures: 
        "0": 
          name: punctuation.definition.group.ruby
      begin: \(
      end: \)
      patterns: 
      - include: "#regex_sub"
    - name: comment.line.number-sign.ruby
      captures: 
        "1": 
          name: punctuation.definition.comment.ruby
      match: (?<=^|\s)(#)\s[[a-zA-Z0-9,. \t?!-][^\x00-\x7F]]*$
      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.
  heredoc: 
    begin: ^<<-?\w+
    end: $
    patterns: 
    - include: $base
  nest_parens_r: 
    captures: 
      "0": 
        name: punctuation.section.scope.ruby
    begin: \(
    end: \)
    patterns: 
    - include: "#regex_sub"
    - include: "#nest_parens_r"
  nest_curly_r: 
    captures: 
      "0": 
        name: punctuation.section.scope.ruby
    begin: \{
    end: \}
    patterns: 
    - include: "#regex_sub"
    - include: "#nest_curly_r"
  nest_parens_i: 
    captures: 
      "0": 
        name: punctuation.section.scope.ruby
    begin: \(
    end: \)
    patterns: 
    - include: "#interpolated_ruby"
    - include: "#escaped_char"
    - include: "#nest_parens_i"
  nest_ltgt_r: 
    captures: 
      "0": 
        name: punctuation.section.scope.ruby
    begin: \<
    end: \>
    patterns: 
    - include: "#regex_sub"
    - include: "#nest_ltgt_r"
  nest_curly_i: 
    captures: 
      "0": 
        name: punctuation.section.scope.ruby
    begin: \{
    end: \}
    patterns: 
    - include: "#interpolated_ruby"
    - include: "#escaped_char"
    - include: "#nest_curly_i"
  nest_ltgt_i: 
    captures: 
      "0": 
        name: punctuation.section.scope.ruby
    begin: \<
    end: \>
    patterns: 
    - include: "#interpolated_ruby"
    - include: "#escaped_char"
    - include: "#nest_ltgt_i"
  nest_ltgt: 
    captures: 
      "0": 
        name: punctuation.section.scope.ruby
    begin: \<
    end: \>
    patterns: 
    - include: "#nest_ltgt"
  nest_curly_and_self: 
    patterns: 
    - captures: 
        "0": 
          name: punctuation.section.scope.ruby
      begin: \{
      end: \}
      patterns: 
      - include: "#nest_curly_and_self"
    - include: $self
  nest_parens: 
    captures: 
      "0": 
        name: punctuation.section.scope.ruby
    begin: \(
    end: \)
    patterns: 
    - include: "#nest_parens"
  nest_brackets_r: 
    captures: 
      "0": 
        name: punctuation.section.scope.ruby
    begin: \[
    end: \]
    patterns: 
    - include: "#regex_sub"
    - include: "#nest_brackets_r"
  nest_curly: 
    captures: 
      "0": 
        name: punctuation.section.scope.ruby
    begin: \{
    end: \}
    patterns: 
    - include: "#nest_curly"
  nest_brackets_i: 
    captures: 
      "0": 
        name: punctuation.section.scope.ruby
    begin: \[
    end: \]
    patterns: 
    - include: "#interpolated_ruby"
    - include: "#escaped_char"
    - include: "#nest_brackets_i"
uuid: E00B62AC-6B1C-11D9-9B1F-000D93589AF6
foldingStartMarker: "(?x)^\n\
  \t    (\\s*+\n\
  \t        (module|class|def\n\
  \t        |unless|if\n\
  \t        |case\n\
  \t        |begin\n\
  \t        |for|while|until\n\
  \t\t\t |^=begin\n\
  \t        |(  \"(\\\\.|[^\"])*+\"          # eat a double quoted string\n\
  \t         | '(\\\\.|[^'])*+'        # eat a single quoted string\n\
  \t         |   [^#\"']                # eat all but comments and strings\n\
  \t         )*\n\
  \t         (                        \\s   (do|begin|case)\n\
  \t         | (?<!\\$)[-+=&|*/~%^<>~] \\s*+ (if|unless)\n\
  \t         )\n\
  \t        )\\b\n\
  \t        (?! [^;]*+ ; .*? \\bend\\b )\n\
  \t    |(  \"(\\\\.|[^\"])*+\"              # eat a double quoted string\n\
  \t     | '(\\\\.|[^'])*+'            # eat a single quoted string\n\
  \t     |   [^#\"']                    # eat all but comments and strings\n\
  \t     )*\n\
  \t     ( \\{ (?!  [^}]*+ \\} )\n\
  \t     | \\[ (?! [^\\]]*+ \\] )\n\
  \t     )\n\
  \t    ).*$\n\
  \t|   [#] .*? \\(fold\\) \\s*+ $         # Sune\xE2\x80\x99s special marker\n\
  \t"
patterns: 
- name: meta.class.ruby
  captures: 
    "6": 
      name: variable.other.object.ruby
    "7": 
      name: punctuation.definition.variable.ruby
    "1": 
      name: keyword.control.class.ruby
    "2": 
      name: entity.name.type.class.ruby
    "4": 
      name: entity.other.inherited-class.ruby
    "5": 
      name: punctuation.separator.inheritance.ruby
  match: ^\s*(class)\s+(([.a-zA-Z0-9_:]+(\s*(<)\s*[.a-zA-Z0-9_:]+)?)|((<<)\s*[.a-zA-Z0-9_:]+))
- name: meta.module.ruby
  captures: 
    "6": 
      name: punctuation.separator.inheritance.ruby
    "7": 
      name: entity.other.inherited-class.module.third.ruby
    "8": 
      name: punctuation.separator.inheritance.ruby
    "1": 
      name: keyword.control.module.ruby
    "2": 
      name: entity.name.type.module.ruby
    "3": 
      name: entity.other.inherited-class.module.first.ruby
    "4": 
      name: punctuation.separator.inheritance.ruby
    "5": 
      name: entity.other.inherited-class.module.second.ruby
  match: ^\s*(module)\s+(([A-Z]\w*(::))?([A-Z]\w*(::))?([A-Z]\w*(::))*[A-Z]\w*)
- name: invalid.deprecated.ruby
  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\xE2\x80\x99s never what you want."
- name: keyword.control.ruby
  match: (?<!\.)\b(BEGIN|begin|case|class|else|elsif|END|end|ensure|for|if|in|module|rescue|then|unless|until|when|while)\b(?![?!])
  comment: everything being a reserved word, not a value and needing a 'end' is a..
- name: keyword.control.ruby.start-block
  match: (?<!\.)\bdo\b\s*
  comment: contextual smart pair support for block parameters
- name: meta.syntax.ruby.start-block
  match: (?<=\{)(\s+)
  comment: contextual smart pair support
- name: keyword.operator.logical.ruby
  match: (?<!\.)\b(and|not|or)\b
  comment: " as above, just doesn't need a 'end' and does a logic operation"
- name: keyword.control.pseudo-method.ruby
  match: (?<!\.)\b(alias|alias_method|break|next|redo|retry|return|super|undef|yield)\b(?![?!])|\bdefined\?|\bblock_given\?
  comment: " just as above but being not a logical operation"
- name: constant.language.ruby
  match: \b(nil|true|false)\b(?![?!])
- name: variable.language.ruby
  match: \b(__(FILE|LINE)__|self)\b(?![?!])
- name: keyword.other.special-method.ruby
  match: \b(initialize|new|loop|include|extend|raise|attr_reader|attr_writer|attr_accessor|attr|catch|throw|private|module_function|public|protected)\b(?![?!])
  comment: " everything being a method but having a special function is a.."
- name: meta.require.ruby
  captures: 
    "1": 
      name: keyword.other.special-method.ruby
  begin: \b(require)\b
  end: $|(?=#)
  patterns: 
  - include: $base
- name: variable.other.readwrite.instance.ruby
  captures: 
    "1": 
      name: punctuation.definition.variable.ruby
  match: (@)[a-zA-Z_]\w*
- name: variable.other.readwrite.class.ruby
  captures: 
    "1": 
      name: punctuation.definition.variable.ruby
  match: (@@)[a-zA-Z_]\w*
- name: variable.other.readwrite.global.ruby
  captures: 
    "1": 
      name: punctuation.definition.variable.ruby
  match: (\$)[a-zA-Z_]\w*
- name: variable.other.readwrite.global.pre-defined.ruby
  captures: 
    "1": 
      name: punctuation.definition.variable.ruby
  match: (\$)(!|@|&|`|'|\+|\d|~|=|/|\\|,|;|\.|<|>|_|\*|\$|\?|:|"|-[0adFiIlpv])
- name: support.class.ruby
  match: \b[A-Z][a-z]\w*(?=((\.|::)[A-Za-z]|\[))
- name: meta.environment-variable.ruby
  begin: \b(ENV)\[
  beginCaptures: 
    "1": 
      name: variable.other.constant.ruby
  end: \]
  patterns: 
  - include: $self
- name: variable.other.constant.ruby
  match: \b[A-Z]\w*\b
- name: meta.function.method.with-arguments.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.parameters.ruby
  begin: (?<=^|\s)\b(def)\b\s+((?>[a-zA-Z_]\w*(?>\.|::))?(?>[a-zA-Z_]\w*(?>[?!]|=(?!>))?|===?|>[>=]?|<=>|<[<=]?|[%&`/\|]|\*\*?|=?~|[-+]@?|\[\]=?))\s*(\()
  contentName: variable.parameter.function.ruby
  beginCaptures: 
    "1": 
      name: keyword.control.def.ruby
    "2": 
      name: entity.name.function.ruby
    "3": 
      name: punctuation.definition.parameters.ruby
  end: \)
  patterns: 
  - include: $base
  comment: " the method pattern comes from the symbol pattern, see there for a explaination"
- name: meta.function.method.without-arguments.ruby
  captures: 
    "1": 
      name: keyword.control.def.ruby
    "3": 
      name: entity.name.function.ruby
  match: (?<=^|\s)(def)\b(\s+((?>[a-zA-Z_]\w*(?>\.|::))?(?>[a-zA-Z_]\w*(?>[?!]|=(?!>))?|===?|>[>=]?|<=>|<[<=]?|[%&`/\|]|\*\*?|=?~|[-+]@?|\[\]=?)))?
  comment: " the optional name is just to catch the def also without a method-name"
- name: constant.numeric.ruby
  match: \b(0[xX]\h(?>_?\h)*|\d(?>_?\d)*(\.(?![^[:space:][:digit:]])(?>_?\d)*)?([eE][-+]?\d(?>_?\d)*)?|0[bB][01]+)\b
- name: constant.other.symbol.single-quoted.ruby
  captures: 
    "0": 
      name: punctuation.definition.constant.ruby
  begin: ":'"
  end: "'"
  patterns: 
  - name: constant.character.escape.ruby
    match: \\['\\]
- name: constant.other.symbol.double-quoted.ruby
  captures: 
    "0": 
      name: punctuation.definition.constant.ruby
  begin: ":\""
  end: "\""
  patterns: 
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
- name: string.quoted.single.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "'"
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: "'"
  patterns: 
  - name: constant.character.escape.ruby
    match: \\'|\\\\
  comment: single quoted string (does not allow interpolation)
- name: string.quoted.double.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "\""
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: "\""
  patterns: 
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
  comment: double quoted string (allows for interpolation)
- name: string.interpolated.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "`"
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: "`"
  patterns: 
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
  comment: execute string (allows for interpolation)
- name: string.interpolated.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%x\\{"
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \}
  patterns: 
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
  - include: "#nest_curly_i"
  comment: execute string (allow for interpolation)
- name: string.interpolated.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%x\\["
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \]
  patterns: 
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
  - include: "#nest_brackets_i"
  comment: execute string (allow for interpolation)
- name: string.interpolated.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%x\\<"
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \>
  patterns: 
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
  - include: "#nest_ltgt_i"
  comment: execute string (allow for interpolation)
- name: string.interpolated.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%x\\("
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \)
  patterns: 
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
  - include: "#nest_parens_i"
  comment: execute string (allow for interpolation)
- name: string.interpolated.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%x([^\\w])"
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \1
  patterns: 
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
  comment: execute string (allow for interpolation)
- captures: 
    "1": 
      name: string.regexp.classic.ruby
    "2": 
      name: punctuation.definition.string.ruby
  begin: "(?x)\n\
    \t\t\t   (?:\n\
    \t\t\t     ^                      # beginning of line\n\
    \t\t\t   | (?<=                   # or look-behind on:\n\
    \t\t\t       [=>~(?:\\[,|&]\n\
    \t\t\t     | (?:\\s|;)when\\s\n\
    \t\t\t     | (?:\\s|;)or\\s\n\
    \t\t\t     | (?:\\s|;)and\\s\n\
    \t\t\t     | (?:\\s|;|\\.)index\\s\n\
    \t\t\t     | (?:\\s|;|\\.)scan\\s\n\
    \t\t\t     | (?:\\s|;|\\.)sub\\s\n\
    \t\t\t     | (?:\\s|l|\\.)sub!\\s\n\
    \t\t\t     | (?:\\s|;|\\.)gsub\\s\n\
    \t\t\t     | (?:\\s|;|\\.)gsub!\\s\n\
    \t\t\t     | (?:\\s|;|\\.)match\\s\n\
    \t\t\t     | (?:\\s|;)if\\s\n\
    \t\t\t     | (?:\\s|;)elsif\\s\n\
    \t\t\t     | (?:\\s|;)while\\s\n\
    \t\t\t     | (?:\\s|;)unless\\s\n\
    \t\t\t     )\n\
    \t\t\t   | (?<=                  # or a look-behind with line anchor:\n\
    \t\t\t        ^when\\s              # duplication necessary due to limits of regex\n\
    \t\t\t      | ^index\\s\n\
    \t\t\t      | ^scan\\s\n\
    \t\t\t      | ^sub\\s\n\
    \t\t\t      | ^gsub\\s\n\
    \t\t\t      | ^sub!\\s\n\
    \t\t\t      | ^gsub!\\s\n\
    \t\t\t      | ^match\\s\n\
    \t\t\t      | ^if\\s\n\
    \t\t\t      | ^elsif\\s\n\
    \t\t\t      | ^while\\s\n\
    \t\t\t      | ^unless\\s\n\
    \t\t\t      )\n\
    \t\t\t   )\n\
    \t\t\t   \\s*((/))(?![*+{}?])\n\
    \t\t\t"
  contentName: string.regexp.classic.ruby
  end: ((/[eimnosux]*))
  patterns: 
  - include: "#regex_sub"
  comment: "regular expressions (normal)\n\
    \t\t\twe only start a regexp if the character before it (excluding whitespace)\n\
    \t\t\tis what we think is before a regexp\n\
    \t\t\t"
- name: string.regexp.mod-r.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%r\\{"
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \}[eimnosux]*
  patterns: 
  - include: "#regex_sub"
  - include: "#nest_curly_r"
  comment: regular expressions (literal)
- name: string.regexp.mod-r.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%r\\["
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \][eimnosux]*
  patterns: 
  - include: "#regex_sub"
  - include: "#nest_brackets_r"
  comment: regular expressions (literal)
- name: string.regexp.mod-r.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%r\\("
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \)[eimnosux]*
  patterns: 
  - include: "#regex_sub"
  - include: "#nest_parens_r"
  comment: regular expressions (literal)
- name: string.regexp.mod-r.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%r\\<"
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \>[eimnosux]*
  patterns: 
  - include: "#regex_sub"
  - include: "#nest_ltgt_r"
  comment: regular expressions (literal)
- name: string.regexp.mod-r.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%r([^\\w])"
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \1[eimnosux]*
  patterns: 
  - include: "#regex_sub"
  comment: regular expressions (literal)
- name: string.quoted.other.literal.upper.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%[QWSR]?\\("
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \)
  patterns: 
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
  - include: "#nest_parens_i"
  comment: literal capable of interpolation ()
- name: string.quoted.other.literal.upper.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%[QWSR]?\\["
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \]
  patterns: 
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
  - include: "#nest_brackets_i"
  comment: literal capable of interpolation []
- name: string.quoted.other.literal.upper.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%[QWSR]?\\<"
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \>
  patterns: 
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
  - include: "#nest_ltgt_i"
  comment: literal capable of interpolation <>
- name: string.quoted.double.ruby.mod
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%[QWSR]?\\{"
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \}
  patterns: 
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
  - include: "#nest_curly_i"
  comment: literal capable of interpolation -- {}
- name: string.quoted.other.literal.upper.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%[QWSR]([^\\w])"
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \1
  patterns: 
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
  comment: literal capable of interpolation -- wildcard
- name: string.quoted.other.literal.other.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%([^\\w\\s=])"
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \1
  patterns: 
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
  comment: literal capable of interpolation -- wildcard
- name: string.quoted.other.literal.lower.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%[qws]\\("
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \)
  patterns: 
  - name: constant.character.escape.ruby
    match: \\\)|\\\\
  - include: "#nest_parens"
  comment: literal incapable of interpolation -- ()
- name: string.quoted.other.literal.lower.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%[qws]\\<"
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \>
  patterns: 
  - name: constant.character.escape.ruby
    match: \\\>|\\\\
  - include: "#nest_ltgt"
  comment: literal incapable of interpolation -- <>
- name: string.quoted.other.literal.lower.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%[qws]\\["
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \]
  patterns: 
  - name: constant.character.escape.ruby
    match: \\\]|\\\\
  - include: "#nest_brackets"
  comment: literal incapable of interpolation -- []
- name: string.quoted.other.literal.lower.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%[qws]\\{"
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \}
  patterns: 
  - name: constant.character.escape.ruby
    match: \\\}|\\\\
  - include: "#nest_curly"
  comment: literal incapable of interpolation -- {}
- name: string.quoted.other.literal.lower.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: "%[qws]([^\\w])"
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \1
  patterns: 
  - match: \\.
    comment: Cant be named because its not neccesarily an escape.
  comment: literal incapable of interpolation -- wildcard
- name: constant.other.symbol.ruby
  captures: 
    "1": 
      name: punctuation.definition.constant.ruby
  match: (?<!:)(:)(?>[a-zA-Z_]\w*(?>[?!]|=(?![>=]))?|===?|>[>=]?|<[<=]?|<=>|[%&`/\|]|\*\*?|=?~|[-+]@?|\[\]=?|@@?[a-zA-Z_]\w*)
  comment: symbols
- name: comment.block.documentation.ruby
  captures: 
    "0": 
      name: punctuation.definition.comment.ruby
  begin: ^=begin
  end: ^=end
  comment: multiline comments
- name: comment.line.number-sign.ruby
  captures: 
    "1": 
      name: punctuation.definition.comment.ruby
  match: (?:^[ \t]+)?(#).*$\n?
- name: constant.numeric.ruby
  match: (?<!\w)\?(\\(x\h{1,2}(?!\h)\b|0[0-7]{0,2}(?![0-7])\b|[^x0MC])|(\\[MC]-)+\w|[^\s\\])
  comment: "\n\
    \t\t\tmatches questionmark-letters.\n\n\
    \t\t\texamples (1st alternation = hex):\n\
    \t\t\t?\\x1     ?\\x61\n\n\
    \t\t\texamples (2nd alternation = octal):\n\
    \t\t\t?\\0      ?\\07     ?\\017\n\n\
    \t\t\texamples (3rd alternation = escaped):\n\
    \t\t\t?\\n      ?\\b\n\n\
    \t\t\texamples (4th alternation = meta-ctrl):\n\
    \t\t\t?\\C-a    ?\\M-a    ?\\C-\\M-\\C-\\M-a\n\n\
    \t\t\texamples (4th alternation = normal):\n\
    \t\t\t?a       ?A       ?0 \n\
    \t\t\t?*       ?\"       ?( \n\
    \t\t\t?.       ?#\n\
    \t\t\t\n\
    \t\t\t\n\
    \t\t\tthe negative lookbehind prevents against matching\n\
    \t\t\tp(42.tainted?)\n\
    \t\t\t"
- captures: 
    "0": 
      name: string.unquoted.program-block.ruby
  begin: ^__END__\n
  contentName: text.plain
  end: (?=not)impossible
  patterns: 
  - name: text.html.embedded.ruby
    begin: (?=<?xml|<(?i:html\b)|!DOCTYPE (?i:html\b))
    end: (?=not)impossible
    patterns: 
    - include: text.html.basic
  comment: __END__ marker
- name: string.unquoted.heredoc.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: (?>\=\s*<<(\w+))(?!\s+#\s*([Cc]|sh|[Jj]ava))
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: ^\1$
  patterns: 
  - include: "#heredoc"
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
- name: string.unquoted.embedded.html.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: (?><<-HTML\b)
  contentName: text.html.embedded.ruby
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \s*HTML$
  patterns: 
  - include: "#heredoc"
  - include: text.html.basic
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
  comment: heredoc with embedded HTML and indented terminator
- name: string.unquoted.embedded.ruby.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: (?><<-(["\\']?)(\w+_(?i:eval))\1)
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \s*\2$
  patterns: 
  - include: "#heredoc"
  - include: "#interpolated_ruby"
  - include: source.ruby
  - include: "#escaped_char"
  comment: ruby code in heredoc, interpolated
- name: string.unquoted.heredoc.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: (?><<-(\w+))
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: \s*\1$
  patterns: 
  - include: "#heredoc"
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
  comment: heredoc with indented terminator
- name: string.unquoted.embedded.c.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: (?>\=\s*<<(\w+))(?=\s+#\s*[Cc](?!(\+\+|[Ss][Ss])))
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: ^\1$
  patterns: 
  - include: "#heredoc"
  - include: source.c
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
- name: string.unquoted.embedded.cplusplus.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: (?>\=\s*<<(\w+))(?=\s+#\s*[Cc]\+\+)
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: ^\1$
  patterns: 
  - include: "#heredoc"
  - include: source.c++
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
- name: string.unquoted.embedded.css.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: (?>\=\s*<<(\w+))(?=\s+#\s*[Cc][Ss][Ss])
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: ^\1$
  patterns: 
  - include: "#heredoc"
  - include: source.css
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
- name: string.unquoted.embedded.js.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: (?>\=\s*<<(\w+))(?=\s+#\s*[Jj]ava[Ss]cript)
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: ^\1$
  patterns: 
  - include: "#heredoc"
  - include: source.js
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
- name: string.unquoted.embedded.shell.ruby
  endCaptures: 
    "0": 
      name: punctuation.definition.string.end.ruby
  begin: (?>\=\s*<<(\w+))(?=\s+#\s*sh)
  beginCaptures: 
    "0": 
      name: punctuation.definition.string.begin.ruby
  end: ^\1$
  patterns: 
  - include: "#heredoc"
  - include: source.shell
  - include: "#interpolated_ruby"
  - include: "#escaped_char"
- name: meta.function-call.method.with-arguments.ruby
  begin: (?<=[^\.])(?=(\.|::)[a-zA-Z][a-zA-Z0-9_!?=]*\()(\.|::)
  beginCaptures: 
    "1": 
      name: punctuation.separator.method.ruby
  end: (?<=[a-zA-Z0-9_!?=])(?=\()
  patterns: 
  - comment: "made this way to eventually support including #known_function_names"
  - name: entity.name.function.ruby
    match: ([a-zA-Z][a-zA-Z0-9_!?=]*)(?=[^a-zA-Z0-9_!?])
- name: meta.function-call.method.without-arguments.ruby
  begin: (?<=[^\.])(?=(\.|::)[a-zA-Z][a-zA-Z0-9_!?]*[^a-zA-Z0-9_!?])(\.|::)
  beginCaptures: 
    "1": 
      name: punctuation.separator.method.ruby
  end: (?<=[a-zA-Z0-9_!?])(?=[^a-zA-Z0-9_!?])
  patterns: 
  - comment: "made this way to eventually support including #known_function_names"
  - name: entity.name.function.ruby
    match: ([a-zA-Z][a-zA-Z0-9_!?]*)(?=[^a-zA-Z0-9_!?])
- name: meta.function-call.ruby
  begin: (?=[a-zA-Z][a-zA-Z0-9_!?]+\()
  end: (?=\()
  patterns: 
  - comment: "eventually include #known_function_names"
  - name: entity.name.function.ruby
    match: ([a-zA-Z0-9_!?]+)(?=\()
- captures: 
    "1": 
      name: punctuation.separator.variable.ruby
  begin: (?<=\{|do|\{\s|do\s)(\|)
  end: (\|)
  patterns: 
  - name: variable.other.block.ruby
    match: "[_a-zA-Z][_a-zA-Z0-9]*"
  - name: punctuation.separator.variable.ruby
    match: ","
- name: punctuation.separator.key-value
  match: =>
- name: keyword.operator.unary.ruby
  match: \+@|-@
- name: keyword.operator.assignment.augmented.ruby
  match: <<=|%=|&=|\*=|\*\*=|\+=|\-=|\^=|\|{1,2}=|/=|<<
- name: keyword.operator.comparison.ruby
  match: <=>|<(?!<|=)|>(?!<|=|>)|<=|>=|===|==|=~|!=|!~|(?<=[ \t])\?
- name: keyword.operator.logical.ruby
  match: (?<=[ \t])!|\bnot\b|&&|\band\b|\|\||\bor\b|\^
- name: keyword.operator.arithmetic.ruby
  match: (%|&|\*\*|\*|\+|\-|/)
- name: keyword.operator.assignment.ruby
  match: "="
- name: keyword.operator.other.ruby
  match: \||~|>>
- name: punctuation.separator.other.ruby
  match: ":"
- name: punctuation.separator.statement.ruby
  match: \;
- name: punctuation.separator.object.ruby
  match: ","
- name: punctuation.separator.method.ruby
  match: "\\.|::"
- name: punctuation.section.scope.ruby
  match: \{|\}
- name: punctuation.section.array.ruby
  match: \[|\]
- name: punctuation.section.function.ruby
  match: \(|\)
foldingStopMarker: "(?x)\n\
  \t\t(   (^|;) \\s*+ end   \\s*+ ([#].*)? $\n\
  \t\t|   (^|;) \\s*+ end \\. .* $\n\
  \t\t|   ^     \\s*+ [}\\]] \\s*+ ([#].*)? $\n\
  \t\t|   [#] .*? \\(end\\) \\s*+ $    # Sune\xE2\x80\x99s special marker\n\
  \t\t|   ^=end\n\
  \t\t)"
keyEquivalent: ^~R
comment: "\n\
  \tTODO: unresolved issues\n\n\
  \ttext:\n\
  \t\"p << end\n\
  \tprint me!\n\
  \tend\"\n\
  \tsymptoms:\n\
  \tnot recognized as a heredoc\n\
  \tsolution:\n\
  \tthere is no way to distinguish perfectly between the << operator and the start\n\
  \tof a heredoc. Currently, we require assignment to recognize a heredoc. More\n\
  \trefinement is possible.\n\
  \t\xE2\x80\xA2 Heredocs with indented terminators (<<-) are always distinguishable, however.\n\
  \t\xE2\x80\xA2 Nested heredocs are not really supportable at present\n\n\
  \ttext:\n\
  \tprint <<-'THERE' \n\
  \tThis is single quoted. \n\
  \tThe above used #{Time.now} \n\
  \tTHERE \n\
  \tsymtoms:\n\
  \tFrom Programming Ruby p306; should be a non-interpolated heredoc.\n\
  \t\n\
  \ttext:\n\
  \t\"a\\332a\"\n\
  \tsymptoms:\n\
  \t'\\332' is not recognized as slash3.. which should be octal 332.\n\
  \tsolution:\n\
  \tplain regexp.. should be easy.\n\n    text:\n    val?(a):p(b)\n    val?'a':'b'\n    symptoms:\n    ':p' is recognized as a symbol.. its 2 things ':' and 'p'.\n    :'b' has same problem.\n    solution:\n    ternary operator rule, precedence stuff, symbol rule.\n    but also consider 'a.b?(:c)' ??\n"