private FUSRule createExpressionValidationRule()

in src/main/java/com/intellij/internal/statistic/eventLog/validator/rules/utils/ValidationSimpleRuleFactory.java [107:126]

• 20 lines of code
• 4 McCabe index (conditional complexity)

  private FUSRule createExpressionValidationRule(@NotNull String rule, @NotNull EventGroupContextData contextData) {
    StringBuilder sb = new StringBuilder();
    for (String node : parseSimpleExpression(rule)) {
      if (isExpressionNode(node)) {
        FUSRule fusRule = createRule(unwrapRuleNode(node), contextData);
        if (fusRule instanceof FUSRegexpAwareRule) {
          sb.append("(");
          sb.append(((FUSRegexpAwareRule)fusRule).asRegexp());
          sb.append(")");
        }
        else {
          return UNPARSED_EXPRESSION;
        }
      }
      else {
        sb.append(RegexpValidationRule.escapeText(node));
      }
    }
    return new RegexpValidationRule(sb.toString());
  }