%YAML 1.2
---
# NotesCraft's own GraphQL grammar. Original work written for this project; not copied
# from any other grammar. Regexes stay linear: no nested quantifiers, so nothing backtracks far.
# Strings end at their line unless the language allows multi-line ones.
name: GraphQL
file_extensions: [graphql, gql, graphqls]
scope: source.graphql

contexts:
  main:
    - match: '#.*'
      scope: comment.line
    - match: '@\w+'
      scope: entity.other.attribute-name
    - match: '\$\w+'
      scope: variable.parameter
    - match: '\b[A-Za-z_]\w*(?=\s*:)'
      scope: meta.mapping.key
    - match: '"""'
      scope: punctuation.definition.string.begin
      push: str-tdq
    - match: '"'
      scope: punctuation.definition.string.begin
      push: str-dq
    - match: '\b(?:query|mutation|subscription|fragment|on|type|interface|enum|union|input|scalar|schema|extend|directive|implements|repeatable)\b'
      scope: keyword.control
    - match: '\b(?:true|false|null)\b'
      scope: constant.language
    - match: '\b(?:0[xX][0-9a-fA-F_]+|0[bB][01_]+|\d[\d_]*(?:\.\d[\d_]*)?(?:[eE][+-]?\d+)?)\b'
      scope: constant.numeric
    - match: '\b[A-Z][A-Za-z0-9_]*\b'
      scope: entity.name.type
    - match: '[-+*/%=<>!&|^~?:]+'
      scope: keyword.operator
  str-tdq:
    - meta_scope: string.quoted.triple
    - match: '\\.'
      scope: constant.character.escape
    - match: '"""'
      scope: punctuation.definition.string.end
      pop: true
  str-dq:
    - meta_scope: string.quoted.double
    - match: '\\.'
      scope: constant.character.escape
    - match: '"'
      scope: punctuation.definition.string.end
      pop: true
    - match: '(?=\n)'
      pop: true