GraphQL.YAML-tmLanguage

# [PackageDev] target_format: plist, ext: tmLanguage
name: GraphQL
scopeName: source.graphql
fileTypes: [graphql, GraphQL]

patterns:
- include: '#comment'

- comment: a fragment definintion
  name: meta.fragment
  match: (fragment)\s*([_A-Za-z][_0-9A-Za-z]*)\s*(on)\s*([_A-Za-z][_0-9A-Za-z]*)
  captures:
    '1': {name: storage.type}
    '2': {name: variable.other}
    '3': {name: keyword.operator}
    '4': {name: support.constant}

- comment: an operation definition
  name: meta.operation
  match: (query|mutation)\s*([_A-Za-z][_0-9A-Za-z]*)
  captures:
    '1': {name: storage.type}
    '2': {name: variable.other}

- include: '#arguments'

- include: '#selections'

repository:
  comment:
    name: comment.line.number-sign.graphql
    match: '#.*$'

  argument:
    name: variable.parameter
    match: '[_A-Za-z][_0-9A-Za-z]*:'

  arguments:
    name: meta.arguments
    begin: \(
    beginCaptures:
      '0': {name: meta.brace.round.graphql}
    end: \)
    endCaptures:
      '0': {name: meta.brace.round.graphql}
    patterns:
    - include: '#argument'
    - include: '#string'
    - include: '#boolean'
    - include: '#variable'
    - include: '#number'
    - include: '#enum'
    - include: '#comment'

  boolean:
    name: constant.language.boolean
    match: true|false

  builtInField:
    name: keyword.other.graphql
    match: __schema|__typename|__type

  directive:
    name: storage.modifier
    match: '@[a-z]+'

  enum:
    name: support.constant.enum
    match: '[_A-Za-z][_0-9A-Za-z]*'

  escapedChar:
    name: constant.character.escape.graphql
    match: \\(?:u[\da-fA-f]{4}|.)

  fieldAlias:
    name: variable.other.alias.graphql
    match: '[_A-Za-z][_0-9A-Za-z]*:'

  fragmentSpread:
    match: (\.\.\.)\s*([_A-Za-z][_0-9A-Za-z]*)\s*(on)?
    captures:
      '1': {name: keyword.operator}
      '2': {name: variable.other}

  inlineFragment:
    match: (\.\.\.)\s*(on)\s*([_A-Za-z][_0-9A-Za-z]*)
    captures:
      '1': {name: keyword.operator}
      '2': {name: keyword.operator}
      '3': {name: support.constant}

  number:
    name: constant.numeric
    match: \d+\.?\d*[eE]?[\+\-]?\d*

  selections:
    name: meta.selections
    begin: \{
    beginCaptures:
      '0': {name: meta.brace.curly.graphql}
    end: \}
    endCaptures:
      '0': {name: meta.brace.curly.graphql}
    patterns:
    - include: '#fieldAlias'
    - include: '#inlineFragment'
    - include: '#fragmentSpread'
    - include: '#directive'
    - include: '#arguments'
    - include: '#comment'
    - include: '#selections'
    - include: '#builtInField'

  string:
    name: string.quoted.double
    begin: '"'
    beginCaptures:
      '0': {name: punctuation.definition.string.begin}
    end: '"'
    endCaptures:
      '0': {name: punctuation.definition.string.end}
    patterns:
    - include: '#escapedChar'

  variable:
    name: constant.other.symbol
    match: \$[_A-Za-z][_0-9A-Za-z]*
foldingStartMarker: '{(['
foldingStopMarker: '})]'