---
repository:
  ${prefix}${basename}-expression:
    patterns:
      - include: '#${basename}-base-expression'
      - include: '#${prefix}regexp-character-set'
      - include: '#${prefix}regexp-comments'
      - include: '#regexp-flags'
      - include: '#${prefix}regexp-named-group'
      - include: '#regexp-backreference'
      - include: '#${prefix}${basename}-lookahead'
      - include: '#${prefix}${basename}-lookahead-negative'
      - include: '#${prefix}${basename}-lookbehind'
      - include: '#${prefix}${basename}-lookbehind-negative'
      - include: '#${prefix}${basename}-conditional'
      - include: '#${prefix}${basename}-parentheses-non-capturing'
      - include: '#${prefix}${basename}-parentheses'
      ${nested}

  ${prefix}regexp-character-set:
    patterns:
      - match: |
          (?x)
            \[ \^? \] (?! .*?\])
      - name: meta.character.set.regexp
        begin: (\[)(\^)?(\])?
        end: (\]${marker})${guard}
        beginCaptures:
          '1': {name: constant.other.set.regexp
                      punctuation.character.set.begin.regexp}
          '2': {name: keyword.operator.negation.regexp}
          '3': {name: constant.character.set.regexp}
        endCaptures:
          '1': {name: constant.other.set.regexp
                      punctuation.character.set.end.regexp}
          '2': {name: invalid.illegal.newline.python}
        patterns:
          - include: '#regexp-charecter-set-escapes'
          - name: constant.character.set.regexp
            match: '[^\n]'

  ${prefix}${basename}-named-group:
    name: meta.named.regexp
    begin: |
      (?x)
        (\()  (\?P <\w+(?:\s+[[:alnum:]]+)?>)
    end: (\)${marker})${guard}
    beginCaptures:
      '1': {name: punctuation.parenthesis.named.begin.regexp
                  support.other.parenthesis.regexp}
      '2': {name: entity.name.tag.named.group.regexp}
    endCaptures:
      '1': {name: punctuation.parenthesis.named.end.regexp
                  support.other.parenthesis.regexp}
      '2': {name: invalid.illegal.newline.python}
    patterns:
      - include: '#${prefix}${basename}-expression'
      ${nested}

  ${prefix}regexp-comments:
    name: comment.regexp
    begin: \(\?#
    end: (\)${marker})${guard}
    beginCaptures:
      '0': {name: punctuation.comment.begin.regexp}
    endCaptures:
      '1': {name: punctuation.comment.end.regexp}
      '2': {name: invalid.illegal.newline.python}
    patterns:
      - include: '#codetags'

  ${prefix}${basename}-lookahead:
    begin: '(\()\?='
    end: (\)${marker})${guard}
    beginCaptures:
      '0': {name: keyword.operator.lookahead.regexp}
      '1': {name: punctuation.parenthesis.lookahead.begin.regexp}
    endCaptures:
      '1': {name: punctuation.parenthesis.lookahead.end.regexp
                  keyword.operator.lookahead.regexp}
      '2': {name: invalid.illegal.newline.python}
    patterns:
      - include: '#${prefix}${basename}-expression'
      ${nested}

  ${prefix}${basename}-lookahead-negative:
    begin: '(\()\?!'
    end: (\)${marker})${guard}
    beginCaptures:
      '0': {name: keyword.operator.lookahead.negative.regexp}
      '1': {name: punctuation.parenthesis.lookahead.begin.regexp}
    endCaptures:
      '1': {name: punctuation.parenthesis.lookahead.end.regexp
                  keyword.operator.lookahead.negative.regexp}
      '2': {name: invalid.illegal.newline.python}
    patterns:
      - include: '#${prefix}${basename}-expression'
      ${nested}

  ${prefix}${basename}-lookbehind:
    begin: '(\()\?<='
    end: (\)${marker})${guard}
    beginCaptures:
      '0': {name: keyword.operator.lookbehind.regexp}
      '1': {name: punctuation.parenthesis.lookbehind.begin.regexp}
    endCaptures:
      '1': {name: punctuation.parenthesis.lookbehind.end.regexp
                  keyword.operator.lookbehind.regexp}
      '2': {name: invalid.illegal.newline.python}
    patterns:
      - include: '#${prefix}${basename}-expression'
      ${nested}

  ${prefix}${basename}-lookbehind-negative:
    begin: '(\()\?<!'
    end: (\)${marker})${guard}
    beginCaptures:
      '0': {name: keyword.operator.lookbehind.negative.regexp}
      '1': {name: punctuation.parenthesis.lookbehind.begin.regexp}
    endCaptures:
      '1': {name: punctuation.parenthesis.lookbehind.end.regexp
                  keyword.operator.lookbehind.negative.regexp}
      '2': {name: invalid.illegal.newline.python}
    patterns:
      - include: '#${prefix}${basename}-expression'
      ${nested}

  ${prefix}${basename}-conditional:
    begin: '(\()\?\((\w+(?:\s+[[:alnum:]]+)?|\d+)\)'
    end: (\)${marker})${guard}
    beginCaptures:
      '0': {name: keyword.operator.conditional.regexp}
      '1': {name: punctuation.parenthesis.conditional.begin.regexp}
    endCaptures:
      '1': {name: punctuation.parenthesis.conditional.end.regexp
                  keyword.operator.conditional.negative.regexp}
      '2': {name: invalid.illegal.newline.python}
    patterns:
      - include: '#${prefix}${basename}-expression'
      ${nested}

  ${prefix}${basename}-parentheses-non-capturing:
    begin: '\(\?:'
    end: (\)${marker})${guard}
    beginCaptures:
      '0': {name: punctuation.parenthesis.non-capturing.begin.regexp
                  support.other.parenthesis.regexp}
    endCaptures:
      '1': {name: punctuation.parenthesis.non-capturing.end.regexp
                  support.other.parenthesis.regexp}
      '2': {name: invalid.illegal.newline.python}
    patterns:
      - include: '#${prefix}${basename}-expression'
      ${nested}

  ${prefix}${basename}-parentheses:
    begin: \(
    end: (\)${marker})${guard}
    beginCaptures:
      '0': {name: punctuation.parenthesis.begin.regexp
                  support.other.parenthesis.regexp}
    endCaptures:
      '1': {name: punctuation.parenthesis.end.regexp
                  support.other.parenthesis.regexp}
      '2': {name: invalid.illegal.newline.python}
    patterns:
      - include: '#${prefix}${basename}-expression'
      ${nested}

...