%YAML 1.2
---
# http://www.sublimetext.com/docs/3/syntax.html
name: Graphviz (DOT)
file_extensions:
  - dot
  - DOT
  - gv
scope: source.dot
contexts:
  main:
    - include: expressions

  expressions:
    - match: \b((sub|di)?graph)\b\s+((cluster_)?\w+)\b
      captures:
        1: storage.type.dot
        3: entity.name.graph.dot
        4: meta.annotation.dot variable.annotation.cluster.dot
    - match: \b(node|edge|graph|digraph|subgraph|strict)\b
      scope: storage.type.dot
    - match: \b(bottomlabel|color|comment|distortion|fillcolor|fixedsize|fontcolor|fontname|fontsize|group|height|label|layer|orientation|peripheries|regular|shape|shapefile|sides|skew|style|toplabel|URL|width|z)\b
      scope: support.constant.attribute.node.dot
    - match: \b(arrowhead|arrowsize|arrowtail|color|comment|constraint|decorate|dir|fontcolor|fontname|fontsize|headlabel|headport|headURL|label|labelangle|labeldistance|labelfloat|labelcolor|labelfontname|labelfontsize|layer|lhead|ltail|minlen|samehead|sametail|style|taillabel|tailport|tailURL|weight)\b
      scope: support.constant.attribute.edge.dot
    - match: \b(bgcolor|center|clusterrank|color|comment|compound|concentrate|fillcolor|fontname|fontpath|fontsize|label|labeljust|labelloc|layers|margin|mclimit|nodesep|nslimit|nslimit1|ordering|orientation|page|pagedir|quantum|rank|rankdir|ranksep|ratio|remincross|rotate|samplepoints|searchsize|size|style|URL)\b
      scope: support.constant.attribute.graph.dot
    - match: '-[->]'
      scope: punctuation.operator.relationship.dot
    - match: '='
      scope: keyword.operator.assignment.dot
    - match: ';'
      scope: punctuation.separator.statement.dot
    - match: '"'
      scope: punctuation.definition.string.begin.dot
      push:
        - meta_scope: string.quoted.double.dot
        - match: '"'
          scope: punctuation.definition.string.end.dot
          pop: true
        - match: \\.
          scope: constant.character.escape.dot
        - match: '[{}|]'
          scope: punctuation.separator.memory-block.dot
    - include: braces
    - include: brackets
    - include: embedded-html
    - include: comments

  # http://www.graphviz.org/content/node-shapes#html
  embedded-html:
    - match: '<'
      scope: punctuation.section.embedded.begin.dot
      push:
        - meta_content_scope: source.dot.embedded.html
        - match: '((>)?\s*)(>)'
          captures:
            1: source.dot.embedded.html
            2: meta.tag punctuation.definition.tag.end.html
            3: punctuation.section.embedded.end.dot
          pop: true
        - match: ''
          embed: scope:text.html.basic
          escape: (?=>\s*>)

  braces:
    - match: \{
      scope: punctuation.definition.group.begin.dot
      push:
        - meta_scope: meta.group.dot
        - match: \}
          scope: punctuation.definition.group.end.dot
          pop: true
        - match: '[,;]'
          scope: punctuation.separator.dot
        - include: expressions

  brackets:
    - match: \[
      scope: punctuation.definition.attributes.begin.dot
      push:
        - meta_scope: meta.attributes.dot
        - match: \]
          scope: punctuation.definition.attributes.end.dot
          pop: true
        - match: '[,;]'
          scope: punctuation.separator.dot
        - include: expressions

  comments:
    - match: //
      scope: punctuation.definition.comment.dot
      push:
        - meta_scope: comment.line.double-slash.dot
        - match: $\n?
          pop: true
    - match: '#'
      scope: punctuation.definition.comment.dot
      push:
        - meta_scope: comment.line.number-sign.dot
        - match: $\n?
          pop: true
    - match: /\*
      scope: punctuation.definition.comment.dot
      push:
        - meta_scope: comment.block.dot
        - match: \*/
          scope: punctuation.definition.comment.dot
          pop: true
        - match: ^\s*(\*)(?!/)
          captures:
            1: punctuation.definition.comment.dot