%YAML 1.2
---
# TOML, for syntect. Not one of the definitions syntect bundles, and the first thing a
# config-heavy site needs — every orgo.toml example in the documentation is one.
#
# Scope names are the standard TextMate ones, so any syntect theme colours this without
# knowing it exists.
name: TOML
file_extensions: [toml, tml]
scope: source.toml

contexts:
  main:
    - include: comments
    - include: tables
    - include: keys
    - include: values

  comments:
    - match: '#'
      scope: punctuation.definition.comment.toml
      push:
        - meta_scope: comment.line.number-sign.toml
        - match: $\n?
          pop: true

  tables:
    # [[array.of.tables]] before [table], so the doubled bracket wins.
    - match: '^\s*(\[\[)([^\]]*)(\]\])'
      captures:
        1: punctuation.definition.table.array.toml
        2: entity.name.section.toml
        3: punctuation.definition.table.array.toml
    - match: '^\s*(\[)([^\]]*)(\])'
      captures:
        1: punctuation.definition.table.toml
        2: entity.name.section.toml
        3: punctuation.definition.table.toml

  keys:
    - match: '([A-Za-z0-9_\-]+|"[^"]*"|''[^'']*'')\s*(=)'
      captures:
        1: variable.other.key.toml
        2: keyword.operator.assignment.toml

  values:
    - include: strings
    - match: '\b(true|false)\b'
      scope: constant.language.toml
    # Dates and times before numbers, or the year is read as an integer.
    - match: '\b\d{4}-\d{2}-\d{2}([Tt ]\d{2}:\d{2}:\d{2}(\.\d+)?([Zz]|[+\-]\d{2}:\d{2})?)?'
      scope: constant.numeric.date.toml
    - match: '\b\d{2}:\d{2}:\d{2}(\.\d+)?'
      scope: constant.numeric.time.toml
    - match: '\b0x[0-9A-Fa-f_]+\b'
      scope: constant.numeric.hex.toml
    - match: '\b0o[0-7_]+\b'
      scope: constant.numeric.oct.toml
    - match: '\b0b[01_]+\b'
      scope: constant.numeric.bin.toml
    - match: '[+\-]?\b\d[\d_]*(\.[\d_]+)?([eE][+\-]?\d+)?\b'
      scope: constant.numeric.toml
    - match: '\b(inf|nan)\b'
      scope: constant.numeric.toml

  strings:
    # Multi-line forms first: """ would otherwise match as an empty "" plus a stray ".
    - match: '"""'
      scope: punctuation.definition.string.begin.toml
      push:
        - meta_scope: string.quoted.double.block.toml
        - match: '"""'
          scope: punctuation.definition.string.end.toml
          pop: true
        - include: escapes
    - match: "'''"
      scope: punctuation.definition.string.begin.toml
      push:
        - meta_scope: string.quoted.single.block.toml
        - match: "'''"
          scope: punctuation.definition.string.end.toml
          pop: true
    - match: '"'
      scope: punctuation.definition.string.begin.toml
      push:
        - meta_scope: string.quoted.double.toml
        - match: '"'
          scope: punctuation.definition.string.end.toml
          pop: true
        - match: $\n?
          pop: true
        - include: escapes
    - match: "'"
      scope: punctuation.definition.string.begin.toml
      push:
        - meta_scope: string.quoted.single.toml
        - match: "'"
          scope: punctuation.definition.string.end.toml
          pop: true
        - match: $\n?
          pop: true

  escapes:
    - match: '\\(u[0-9A-Fa-f]{4}|U[0-9A-Fa-f]{8}|[btnfr"\\/]|\s*\n)'
      scope: constant.character.escape.toml