{
  "name": "textproto",
  "scopeName": "source.textproto",
  "fileTypes": ["textproto", "textpb", "pbtxt"],
  "patterns": [
    { "include": "#comment" },
    { "include": "#block" },
    { "include": "#field" },
    { "include": "#string" },
    { "include": "#constant" },
    { "include": "#number" }
  ],
  "repository": {
    "comment": {
      "name": "comment.line.number-sign.textproto",
      "match": "#.*$"
    },
    "block": {
      "comment": "A field whose value is a message: `peers {`",
      "match": "\\b([A-Za-z_][A-Za-z0-9_]*)\\s*:?\\s*(?=\\{)",
      "captures": { "1": { "name": "entity.name.tag.textproto" } }
    },
    "field": {
      "match": "\\b([A-Za-z_][A-Za-z0-9_]*)\\s*(:)",
      "captures": {
        "1": { "name": "support.type.property-name.textproto" },
        "2": { "name": "punctuation.separator.key-value.textproto" }
      }
    },
    "string": {
      "patterns": [
        {
          "name": "string.quoted.double.textproto",
          "begin": "\"",
          "end": "\"",
          "patterns": [{ "name": "constant.character.escape.textproto", "match": "\\\\." }]
        },
        {
          "name": "string.quoted.single.textproto",
          "begin": "'",
          "end": "'",
          "patterns": [{ "name": "constant.character.escape.textproto", "match": "\\\\." }]
        }
      ]
    },
    "constant": {
      "patterns": [
        { "name": "constant.language.boolean.textproto", "match": "\\b(true|false)\\b" },
        { "name": "constant.language.enum.textproto", "match": "\\b[A-Z][A-Z0-9_]*\\b" }
      ]
    },
    "number": {
      "name": "constant.numeric.textproto",
      "match": "-?\\b(0x[0-9A-Fa-f]+|[0-9]+(\\.[0-9]+)?([eE][+-]?[0-9]+)?)\\b"
    }
  }
}