ESPHome/YAML (esphome).sublime-syntax at 9b41d7ce9d0dd0f4b11f5d444ae4b6164a37d5e9 · SublimeText/ESPHome · GitHub

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%YAML 1.2
# Extends built-in YAML syntax with support for embedded c++ blocks.
# The blocks can either be specified using a "lambda" key or "!lambda" tag.
# See https://esphome.io/guides/yaml/ and https://esphome.io/automations/templates/#config-lambda
# for more details.
#
# Notes:
# - Single and double-quoted "lambda" keys are not supported.
# - Code between "yaml-esphome begin" and "yaml-esphome end" tags are additions
#   relative to the orignal YAML syntax. The rest of the code is copied from
#   YAML syntax.
---
# http://www.sublimetext.com/docs/syntax.html
name: YAML (esphome)
scope: source.yaml-esphome
version: 2

extends: Packages/YAML/YAML.sublime-syntax

contexts:
  block-pair:
    - match: ( *)(\?)(?=\s)
      captures:
        2: meta.mapping.yaml punctuation.definition.key-value.begin.yaml
      push: block-key-explicit

    # --- yaml-esphome begin ---
    - match: (lambda)\s*(:)(?=\s+|$)
      captures:
        1: meta.mapping.key.yaml meta.string.yaml string.unquoted.plain.out.yaml
        2: meta.mapping.yaml punctuation.separator.key-value.mapping.yaml
      push: lambda-body
    # --- yaml-esphome end ---

    # Attempt to match plain-out scalars and highlight as "meta.mapping.key",
    # if followed by a colon
    - match: '{{_flow_key_out_lookahead}}'
      push: block-key-implicit
    - match: :(?=\s)
      scope: meta.mapping.yaml punctuation.separator.key-value.mapping.yaml

  property-body:
    - meta_scope: meta.property.yaml

    # --- yaml-esphome begin ---
    - match: (?=!lambda)\s*
      set: lambda-body
    # --- yaml-esphome end ---

    # &Anchor
    # http://yaml.org/spec/1.2/spec.html#&%20anchor//
    - match: (&)({{ns_anchor_name}})(\S+)?
      captures:
        1: keyword.control.property.anchor.yaml punctuation.definition.anchor.yaml
        2: entity.name.other.anchor.yaml
        3: invalid.illegal.character.anchor.yaml
      pop: 1
    # !Tag Handle
    # http://yaml.org/spec/1.2/spec.html#tag/property/
    - match: '{{c_ns_tag_property}}(?=\ |\t|$)'
      scope: storage.type.tag-handle.yaml
      pop: 1
    - match: \S+
      scope: invalid.illegal.tag-handle.yaml
      pop: 1

  # --- yaml-esphome begin ---
  lambda-body:
    - meta_include_prototype: false
    - match: (!lambda)\s*
      captures:
        1: meta.property.yaml keyword.control.directive.tag.yaml
    - include: block-scalar-lambda
    - match: (["'])
      pop: 1
      embed: scope:source.c++
      embed_scope: source.c++.embedded.yaml
      escape: \1
    - match: (?=[^\s]|$)
      pop: 1
      embed: scope:source.c++
      embed_scope: source.c++.embedded.yaml
      escape: $

  block-scalar-lambda:
    - match: (?:(\|)|(>))(?:([1-9])([-+])|([-+])?([1-9])?)  # c-b-block-header(m,t)
      captures:
        1: keyword.control.flow.block-scalar.literal.yaml
        2: keyword.control.flow.block-scalar.folded.yaml
        3: constant.numeric.indentation-indicator.yaml
        4: storage.modifier.chomping-indicator.yaml
        5: storage.modifier.chomping-indicator.yaml
        6: constant.numeric.indentation-indicator.yaml
      set: block-scalar-body-lambda

  block-scalar-body-lambda:
    - meta_include_prototype: false
    - match: ^([ ]+)(?! )
      pop: 1
      embed: scope:source.c++
      embed_scope: source.c++.embedded.yaml
      escape: ^(?!\1|\s*$)
    - match: ^(?=\S)  # the block is empty
      pop: 1
    - match: .+
      scope: invalid.illegal.expected-comment-or-newline.yaml
  # --- yaml-esphome end ---