Caddyfile.sublime-syntax

%YAML 1.2
---
name: Caddyfile
file_extensions: [Caddyfile]
scope: source.Caddyfile

variables:
  directive: ^\s*([\w-]+)\b
  key: "[\\w_.:/-]+"

contexts:
  prototype:
    - include: comments
    - include: trailing_spaces
    - include: extra_spaces

  main:
    - match: (^\s*import) (.*)
      captures:
        1: support.function.Caddyfile
        2: source.Caddyfile
    - include: keys

  comments:
    - match: "#.*"
      scope: comment.line.Caddyfile

  trailing_spaces:
    - match: "[ \\t]+$"
      scope: invalid.illegal.trailing-spaces.Caddyfile

  extra_spaces:
    - match: "\\s([ \\t]+){$"
      captures:
        1: invalid.illegal.extra-spaces.Caddyfile

  server_block_common:
    - include: brackets
    - include: placeholders
    - match: '"'
      push: string

  brackets:
    - match: "\\s+{$"
      scope: punctuation.definition.bracket.Caddyfile
      push: nested_block
    - match: "^\\s*}$"
      scope: punctuation.definition.bracket.Caddyfile
      pop: true

  placeholders:
    - include: env_placeholders
    - match: "\\{>?\\w+\\}"
      scope: constant.language.Caddyfile

  env_placeholders:
    - match: "\\{(\\$\\w+|%\\w+%)\\}"
      scope: constant.language.Caddyfile

  keys:
    - include: env_placeholders
    - match: "({{key}})$"
      captures:
        1: variable.other.Caddyfile
      set: server_block
    - match: "{{key}}"
      scope: variable.other.Caddyfile
    - match: ","
      scope: keyword.operator.logical.Caddyfile
    - match: "\\s{$"
      scope: punctuation.definition.bracket.Caddyfile
      set: server_block

  server_block:
    - include: matcher
    - match: "{{directive}}"
      captures:
        1: support.function.Caddyfile
    - include: server_block_common

  nested_block:
    - match: "{{directive}}"
      captures:
        1: keyword.other.Caddyfile
    - include: server_block_common

  string:
    - meta_include_prototype: false
    - meta_scope: string.quoted.double.Caddyfile
    - include: placeholders
    - match: \\.
      scope: constant.character.escape.Caddyfile
    - match: '"'
      pop: true

  matcher:
    - match: "(?<!\\w)@\\w+"
      scope: entity.name.matcher.Caddyfile