refractor/lang/protobuf.js

Lightweight, robust, elegant virtual syntax highlighting using Prism

// @ts-nocheck
/**
 * @import {Refractor} from '../lib/core.js'
 */
import refractorClike from './clike.js'
protobuf.displayName = 'protobuf'
protobuf.aliases = []

/** @param {Refractor} Prism */
export default function protobuf(Prism) {
  Prism.register(refractorClike)
  ;(function (Prism) {
    var builtinTypes =
      /\b(?:bool|bytes|double|s?fixed(?:32|64)|float|[su]?int(?:32|64)|string)\b/
    Prism.languages.protobuf = Prism.languages.extend('clike', {
      'class-name': [
        {
          pattern:
            /(\b(?:enum|extend|message|service)\s+)[A-Za-z_]\w*(?=\s*\{)/,
          lookbehind: true
        },
        {
          pattern:
            /(\b(?:rpc\s+\w+|returns)\s*\(\s*(?:stream\s+)?)\.?[A-Za-z_]\w*(?:\.[A-Za-z_]\w*)*(?=\s*\))/,
          lookbehind: true
        }
      ],
      keyword:
        /\b(?:enum|extend|extensions|import|message|oneof|option|optional|package|public|repeated|required|reserved|returns|rpc(?=\s+\w)|service|stream|syntax|to)\b(?!\s*=\s*\d)/,
      function: /\b[a-z_]\w*(?=\s*\()/i
    })
    Prism.languages.insertBefore('protobuf', 'operator', {
      map: {
        pattern: /\bmap<\s*[\w.]+\s*,\s*[\w.]+\s*>(?=\s+[a-z_]\w*\s*[=;])/i,
        alias: 'class-name',
        inside: {
          punctuation: /[<>.,]/,
          builtin: builtinTypes
        }
      },
      builtin: builtinTypes,
      'positional-class-name': {
        pattern: /(?:\b|\B\.)[a-z_]\w*(?:\.[a-z_]\w*)*(?=\s+[a-z_]\w*\s*[=;])/i,
        alias: 'class-name',
        inside: {
          punctuation: /\./
        }
      },
      annotation: {
        pattern: /(\[\s*)[a-z_]\w*(?=\s*=)/i,
        lookbehind: true
      }
    })
  })(Prism)
}