%YAML 1.2
---
# The following syntax definition is based on:
# https://github.com/MinecraftCommands/syntax-mcfunction/tree/51eb8bf4ca04355bb89f5538b7331cb0c0f3df2b

name: mcfunction
file_extensions: [mcfunction]
scope: source.mcfunction

contexts:
  main:
    - include: root
  comments:
    - match: '^\s*(#[>!#])(.+)$'
      captures:
        "1": comment.block.mcfunction
        "2": markup.bold.mcfunction
      push:
        - meta_scope: meta.comments
        - include: comments_block
        - match: ^(?!#)
          pop: true
    - match: ^\s*#.*$
      scope: meta.comments
      captures:
        "0": comment.line.mcfunction
  comments_block:
    - match: '^\s*#[>!]'
      push:
        - meta_scope: meta.comments_block
        - include: comments_block_emphasized
        - match: $
          pop: true
    - match: '^\s*#'
      push:
        - meta_scope: meta.comments_block
        - include: comments_block_normal
        - match: $
          pop: true
  comments_block_emphasized:
    - include: comments_block_special
    - match: \S+
      scope: meta.comments_block_emphasized
      captures:
        "0": markup.bold.mcfunction
  comments_block_normal:
    - include: comments_block_special
    - match: \S+
      scope: meta.comments_block_normal
      captures:
        "0": comment.block.mcfunction
  comments_block_special:
    - match: '@\S+'
      scope: meta.comments_block_special
      captures:
        "0": markup.heading.mcfunction
    - include: resource-name
    - match: "[#%$][A-Za-z0-9_.#%$]+"
      scope: meta.comments_block_special
      captures:
        "0": variable.other.mcfunction
  comments_inline:
    - match: "#.*$"
      scope: meta.comments
      captures:
        "0": comment.line.mcfunction
  literals:
    - match: \b(true|false|True|False)\b
      scope: meta.literals
      captures:
        "0": constant.numeric.boolean.mcfunction
    - match: '\b[0-9a-fA-F]+(?:-[0-9a-fA-F]+){4}\b'
      scope: meta.names
      captures:
        "0": variable.uuid.mcfunction
    - match: '[+-]?\d*\.?\d+([eE]?[+-]?\d+)?[df]?\b'
      scope: meta.literals
      captures:
        "0": constant.numeric.float.mcfunction
    - match: '[+-]?\d+(b|B|L|l|s|S)?\b'
      scope: meta.literals
      captures:
        "0": constant.numeric.integer.mcfunction
    - match: \.\.
      scope: meta.ellipse.literals
      captures:
        "0": variable.other.mcfunction
    - match: '"'
      push:
        - meta_scope: string.quoted.double.mcfunction
        - include: literals_string-double
        - match: '"'
          pop: true
    - match: "'"
      push:
        - meta_scope: string.quoted.single.mcfunction
        - include: literals_string-single
        - match: "'"
          pop: true
  literals_string-double:
    - match: \\.
      scope: meta.literals_string-double
      captures:
        "0": constant.character.escape.mcfunction
    - match: \\
      scope: meta.literals_string-double
      captures:
        "0": constant.character.escape.mcfunction
    - include: macro-name
    - match: '[^\\"]'
      scope: meta.literals_string-double
      captures:
        "0": string.quoted.double.mcfunction
  literals_string-single:
    - match: \\.
      scope: meta.literals_string-single
      captures:
        "0": constant.character.escape.mcfunction
    - match: \\
      scope: meta.literals_string-double
      captures:
        "0": constant.character.escape.mcfunction
    - include: macro-name
    - match: '[^\\'']'
      scope: meta.literals_string-single
      captures:
        "0": string.quoted.single.mcfunction
  macro-name:
    - match: '(\$\()([A-Za-z0-9_]*)(\))'
      scope: meta.macro-name
      captures:
        "1": punctuation.definition.template-expression.begin.mcfunction
        "2": variable.other.mcfunction
        "3": punctuation.definition.template-expression.end.mcfunction
  names:
    - match: '^(\s*)([a-z_]+)(?=\s)'
      scope: meta.names
      captures:
        "1": whitespace.mcfunction
        "2": keyword.control.flow.mcfunction
    - match: '^(\s*)(\$)( ?)([a-z_]*)'
      scope: meta.names
      captures:
        "1": whitespace.mcfunction
        "2": markup.italic.mcfunction
        "3": whitespace.mcfunction
        "4": keyword.control.flow.mcfunction
    - match: '(run)(\s+)([a-z_]+)'
      scope: meta.names
      captures:
        "1": entity.name.mcfunction
        "2": whitespace.mcfunction
        "3": keyword.control.flow.mcfunction
    - include: resource-name
    - match: '[A-Za-z]+(?=\W)'
      scope: meta.names
      captures:
        "0": entity.name.mcfunction
    - match: "[A-Za-z_][A-Za-z0-9_.#%$]*"
      scope: meta.names
      captures:
        "0": string.unquoted.mcfunction
    - include: macro-name
    - match: '([#%$]|((?<=\s)\.))[A-Za-z0-9_.#%$\-]+'
      scope: meta.names
      captures:
        "0": variable.other.mcfunction
  operators:
    - match: "[~^]"
      scope: meta.operators
      captures:
        "0": constant.numeric.mcfunction
    - match: '[\-%?!+*<>\\/|&=.:,;]'
      scope: meta.operators
      captures:
        "0": keyword.operator.mcfunction
  property:
    - match: '\{'
      push:
        - meta_scope: meta.property.curly
        - include: resource-name
        - include: literals
        - include: property_key
        - include: operators
        - include: property_value
        - include: main
        - match: '\}'
          pop: true
    - match: '\['
      push:
        - meta_scope: meta.property.square
        - include: resource-name
        - include: literals
        - include: property_key
        - include: operators
        - include: property_value
        - include: main
        - match: '\]'
          pop: true
    - match: \(
      push:
        - meta_scope: meta.property.paren
        - include: resource-name
        - include: literals
        - include: property_key
        - include: operators
        - include: property_value
        - include: main
        - match: \)
          pop: true
  property_key:
    - match: '#?[a-z_][a-z_\.\-]*\:[a-z0-9_\.\-/]+(?=\s*\=:)'
      scope: meta.property_key
      captures:
        "0": variable.other.mcfunction
    - match: '#?[a-z_][a-z0-9_\.\-/]+'
      scope: meta.property_key
      captures:
        "0": variable.other.mcfunction
    - match: '[A-Za-z_]+[A-Za-z_\-\+]*'
      scope: meta.property_key
      captures:
        "0": variable.other.mcfunction
  property_value:
    - match: '#?[a-z_][a-z_\.\-]*\:[a-z0-9_\.\-/]+'
      scope: meta.property_value
      captures:
        "0": string.unquoted.mcfunction
    - match: '#?[a-z_][a-z0-9_\.\-/]+'
      scope: meta.property_value
      captures:
        "0": string.unquoted.mcfunction
  resource-name:
    - match: "#?[a-z_][a-z0-9_.-]*:[a-z0-9_./-]+"
      scope: meta.resource-name
      captures:
        "0": entity.name.function.mcfunction
    - match: '#?[a-z0-9_\.\-]+\/[a-z0-9_\.\-\/]+'
      scope: meta.resource-name
      captures:
        "0": entity.name.function.mcfunction
  root:
    - include: literals
    - include: comments
    - include: say
    - include: names
    - include: comments_inline
    - include: subcommands
    - include: property
    - include: operators
    - include: selectors
  say:
    - match: ^(\s*)(say)
      captures:
        "1": whitespace.mcfunction
        "2": keyword.control.flow.mcfunction
      push:
        - meta_scope: meta.say.mcfunction
        - match: \n
          pop: true
        - match: \\\s*\n
          captures:
            "0": constant.character.escape.mcfunction
        - include: literals_string-double
        - include: literals_string-single
    - match: (run)(\s+)(say)
      captures:
        "1": entity.name.mcfunction
        "2": whitespace.mcfunction
        "3": keyword.control.flow.mcfunction
      push:
        - meta_scope: meta.say.mcfunction
        - match: \n
          pop: true
        - match: \\\s*\n
          captures:
            "0": constant.character.escape.mcfunction
        - include: literals_string-double
        - include: literals_string-single
  selectors:
    - match: "@[a-z]+"
      scope: meta.selectors
      captures:
        "0": support.class.mcfunction
  subcommands:
    - match: "[a-z_]+"
      scope: meta.literals
      captures:
        "0": entity.name.class.mcfunction