%YAML 1.2
---
name: Apfl

file_extensions: ["apfl"]

scope: source.apfl

contexts:
  main:
    - match: '`'
      push: backtick_string
    - match: '"'
      push: string
    - match: "#.*$"
      scope: comment.line.number-sign.apfl
    - match: "-?[0-9][0-9]*(\\.[0-9]+)?"
      scope: constant.numeric.value.apfl
    - match: "\\b(if|while|k?each|for|loop)\\b"
      scope: keyword.control.apfl
    - match: "\\b(true|false)\\b"
      scope: constant.language.boolean.apfl
    - match: "\\b(nil)\\b"
      scope: constant.language.null.apfl
    - match: "((?:-[^>0-9]|[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"a-zA-Z0-9]=[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"a-zA-Z0-9]*|[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"=])+)\\s*:?=\\s*\\{"
      captures:
        1: entity.name.function.apfl
    - match: "(-[^>0-9]|[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"a-zA-Z0-9]=[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"a-zA-Z0-9]*|[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"=])+"
      scope: meta.generic-name.apfl
    - match: "'(-[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\">0-9]|[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"a-zA-Z0-9]=[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"a-zA-Z0-9]*|[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"=])+"
      scope: string.apfl
  string:
    - meta_scope: string.quoted.double.apfl
    - match: "\\\\[xX][0-9a-fA-F]{2}"
      scope: constant.character.escape.apfl
    - match: \\.
      scope: constant.character.escape.apfl
    - match: '"'
      pop: true
  backtick_string:
    - meta_scope: string.quoted.backtick.apfl
    - match: "``"
      scope: constant.character.escape.apfl
    - match: '`(?!`)'
      pop: true