Piranha.sublime-syntax

%YAML 1.2
---
name: Piranha
file_extensions:
  - mr
scope: source.piranha

contexts:
  main:
    # Decorators
    - match: '\bnode\b'
      scope: keyword.control.node.piranha

    - match: '\b(as|public|private|module|inline|auto)\b'
      scope: storage.modifier.piranha

    - match: '\b(input|output|modify|toggle)\b'
      scope: entity.other.attribute-name.piranha

    - match: '\balias\b'
      scope: keyword.control.alias.piranha

    - match: '\bimport\b'
      scope: keyword.control.import.piranha

    - match: '\b(true|false)\b'
      scope: constant.language.piranha

    - match: '@[a-zA-Z_][a-zA-Z_0-9]*\s*:'
      scope: entity.name.function.decorator.piranha
      push:
        - meta_scope: meta.decorator.piranha
        - match: '\n'
          pop: true
        - include: strings

    # Node definition and instance patterns
    - match: '\bnode\b\s+([a-zA-Z_][a-zA-Z0-9_]*)\s*\{'
      captures:
        1: storage.type.piranha
        2: entity.name.class.piranha
      push: node_block

    # Node with tag
    - match: '\bnode\b\s+([a-zA-Z_][a-zA-Z0-9_]*)\s*=>\s*([a-zA-Z_][a-zA-Z0-9_]*)\s*\{'
      captures:
        1: storage.type.piranha
        2: entity.name.class.piranha
        3: entity.name.tag.piranha
      push: node_block

    # Node instance call patterns
    - match: '([a-zA-Z_][a-zA-Z_0-9]*)\s*\('
      scope: entity.name.function.piranha
      push:
        - match: '\)'
          pop: true
        - include: attribute_specification

    - match: '([a-zA-Z_][a-zA-Z_0-9]*)\s+([a-zA-Z_][a-zA-Z_0-9]*)\s*\('
      captures:
        1: entity.name.class.piranha
        2: entity.name.function.piranha
      push:
        - match: '\)'
          pop: true
        - include: attribute_specification

    # Global keywords and modifiers
    # - match: '\bnode\b'
    #   scope: keyword.control.node.piranha



    # Strings
    - match: '"'
      scope: punctuation.definition.string.begin.piranha
      push: double_quoted_string

    # Numbers (decimal and hexadecimal)
    - match: '\b0x[0-9a-fA-F]+\b'
      scope: constant.numeric.hex.piranha

    - match: '\b\d+(\.\d+)?\b'
      scope: constant.numeric.piranha

    # Comments
    - match: '//'
      scope: punctuation.definition.comment.piranha
      push: line_comment

    - match: '/\*'
      scope: punctuation.definition.comment.block.piranha
      push: block_comment

  # Block for handling nodes
  node_block:
    - meta_scope: meta.block.node.piranha
    - match: '\}'
      pop: true
    - include: attributes
    - include: node_instance
    - include: comments
    - include: decorators

  # Double quoted strings and escape sequences
  double_quoted_string:
    - meta_scope: string.quoted.double.piranha
    - match: '\\\\.'
      scope: constant.character.escape.piranha
    - match: '"'
      scope: punctuation.definition.string.end.piranha
      pop: true

  # Line comments
  line_comment:
    - meta_scope: comment.line.double-slash.piranha
    - match: $
      pop: true

  # Block comments
  block_comment:
    - meta_scope: comment.block.piranha
    - match: '\*/'
      pop: true

  #Attribute specification within nodes
  attribute_specification:
    - match: '([a-zA-Z_][a-zA-Z_0-9]*)\s*:'
      scope: entity.other.attribute-name.piranha
    - match: '\b(node|output|alias|input|public|private|as)\b'
      scope: invalid.illegal.piranha
    - include: main

  # Handling attributes inside nodes
  attributes:
    - match: '(input|output|modify|toggle)(\s+[a-zA-Z_][a-zA-Z_0-9]*)\s*\['
      captures:
        1: storage.modifier.piranha
        2: entity.other.attribute-name.piranha
      push:
        - meta_scope: meta.attribute.piranha
        - match: '\]'
          pop: true
        - match: '(.*?)\s*::\s*([a-zA-Z_][a-zA-Z_0-9]*)'
          captures:
            1: entity.meta.piranha
            2: entity.name.class.piranha
        - include: main

    - match: '(input|output|modify|toggle)\s+[a-zA-Z_][a-zA-Z_0-9]*'
      captures:
        1: storage.modifier.piranha
        2: entity.other.attribute-name.piranha

    - include: main

  # Node instance handling
  node_instance:
    - match: '([a-zA-Z_][a-zA-Z_0-9]*)\s*\('
      scope: entity.meta.piranha
      push:
        - match: '\)'
          pop: true
        - include: attribute_specification

    - match: '([a-zA-Z_][a-zA-Z_0-9]*)\s+([a-zA-Z_][a-zA-Z_0-9]*)\s*\('
      captures:
        1: entity.name.class.piranha
        2: entity.name.function.piranha
      push:
        - match: '\)'
          pop: true
        - include: attribute_specification

  # Decorators for nodes and attributes
  decorators:
    - match: '@[a-zA-Z_][a-zA-Z_0-9]*\s*:'
      scope: entity.name.function.decorator.piranha
      push:
        - meta_scope: meta.decorator.piranha
        - match: '\n'
          pop: true
        - include: strings