lex()

in src/permissions/permissions-cache.ts [123:167]

• 37 lines of code
• 15 McCabe index (conditional complexity)

  lex(query?: string | null | undefined) {
    const lexems = [];

    if (query) {
      let currentIdentifier = '';

      for (let i = 0; i < query.length; i++) {
        switch (query.charAt(i)) {
          case ' ':
          case '\t':
          case '\n':
          case '\r':
            // Finish current token
            if (currentIdentifier) {
              lexems.push(currentIdentifier);
              currentIdentifier = '';
            }
            // Skip space
            break;
          case '(':
          case ')':
          case '&':
          case '|':
          case '!':
            // Finish current token
            if (currentIdentifier) {
              lexems.push(currentIdentifier);
              currentIdentifier = '';
            }
            // Append operator
            lexems.push(query.charAt(i));
            break;
          default:
            currentIdentifier += query.charAt(i);
            break;
        }
      }

      if (currentIdentifier) {
        lexems.push(currentIdentifier);
      }
    }

    return lexems;
  }