ESPHome/YAML (esphome).sublime-syntax at main · 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.
---
# 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:
    - meta_prepend: true
    - 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

  property-body:
    - meta_prepend: true
    - match: (?=!lambda\b)
      set: lambda-body

  lambda-body:
    - meta_include_prototype: false
    - match: \!lambda\b
      scope: meta.property.yaml keyword.control.directive.tag.yaml
    - 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: lambda-block-scalar-body
    - match: \"
      scope: meta.string.yaml string.quoted.double.yaml punctuation.definition.string.begin.yaml
      pop: 1
      embed: scope:source.c++#statements
      embed_scope: meta.string.yaml source.c++.embedded.yaml
      escape: \"
      escape_captures:
        0: meta.string.yaml string.quoted.double.yaml punctuation.definition.string.end.yaml
    - match: \'
      scope: meta.string.yaml string.quoted.single.yaml punctuation.definition.string.begin.yaml
      pop: 1
      embed: scope:source.c++#statements
      embed_scope: meta.string.yaml source.c++.embedded.yaml
      escape: \'
      escape_captures:
        0: meta.string.yaml string.quoted.single.yaml punctuation.definition.string.end.yaml
    - match: (?=\S)
      pop: 1
      embed: scope:source.c++#statements
      embed_scope: meta.string.yaml source.c++.embedded.yaml
      escape: $
    - match: $
      pop: 1

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