twitch-commando/src/commands/CommandParser.js

Twitch Bot Commando Client

class CommandParser {
  constructor(commands, client) {
    this.commands = commands;
    this.client = client;
  }

  parse(message, prefix) {

    if (prefix == '?' || prefix == '^' || prefix == '[' || prefix == ']' || prefix == ']' || prefix == '(' || prefix == ')' || prefix == '\\' ||
      prefix == '*')
      prefix = '\\' + prefix;

    const regex = new RegExp('^(' + prefix + ')([^\\s]+) ?(.*)', 'gims');

    if (this.client.verboseLogging)
      this.client.logger.debug('%o', regex);

    var matches = regex.exec(message);

    if (this.client.verboseLogging && matches != null)
      this.client.logger.debug('%o', matches);

    if (matches != null) {
      var prefix = matches[1];
      var command = matches[2];
      var args = [];

      if (matches.length > 3) {
        var argsString = matches[3].trim();

        args = argsString.split(" ").filter(v => v != "");
      }

      var result = {
        prefix: prefix,
        command: command,
        args: args
      }

      return result;
    }

    return null;
  }
}

module.exports = CommandParser;