form_question_rule_type_regexp.inc

<?php
require_once dirname(__FILE__).'/../../form_question_rule/form_question_rule.inc';

class Form_Question_Rule_Type_Regexp extends Form_Question_Rule
{


    function __construct($assetid=0)
    {
        parent::__construct($assetid);

    }//end constructor


    public static function getOperators()
    {
        return Array(
                1   => translate('core_form_rule_regexp_true'),
                0   => translate('core_form_rule_regexp_false'),
               );

    }//end getOperators()


    function generateJSCode(&$q_asset, $rule_data)
    {
        $operator = array_get_index($rule_data, 'operator', 1);
        $value = array_get_index($rule_data, 'value', '');
        $case_sensitive = array_get_index($rule_data, 'case_sensitive', 1) ? '' : 'i';
        
        ob_start();         // buffer this please

            // JavaScript only accepts forward slashes for their regexs
            ?>
                if (<?php echo ($operator == 1) ? '!' : ''; ?>form.elements["q<?php echo $q_asset->id; ?>"].value.match(/<?php echo str_replace('/', '\/', $value) ?>/<?php echo $case_sensitive; ?>)) {
                    submission_errors[submission_errors.length] = "<?php
                        if (empty($rule_data['custom_text'])) {
                            echo addslashes($this->defaultError($q_asset, $rule_data));
                        } else {
                            echo addslashes($rule_data['custom_text']);
                        }
                    ?>";
                }
            <?php

        $contents = ob_get_contents();
        ob_end_clean();

        return $contents;

    }//end generateJSCode()


    function evaluate($answer, $rule_data)
    {
        $operator = array_get_index($rule_data, 'operator', 1);
        
        $pattern = '/'.str_replace('/', '\\'.'/', array_get_index($rule_data, 'value', '')).'/';
        
        // case insensitive?
        if (!array_get_index($rule_data, 'case_sensitive', 1)) {
            $pattern .= 'i';
        }

        $valid = (preg_match($pattern, $answer)) ? 1 : 0;

        return ($valid == $operator);

    }//end evaluate()


    function defaultError(&$q_asset, $rule_data)
    {
        $error_str = translate('core_form_rule_regexp_error', $q_asset->name);

        return $error_str;

    }//end defaultError()


    function ruleDescription(&$q_asset, $rule_data)
    {
        $operator = array_get_index($rule_data, 'operator', 1);
        $value = array_get_index($rule_data, 'value', '');
        $operator_list = $this->getOperators();

        $error_str = translate('core_form_rule_regexp_desc_'.($operator ? 'true' : 'false'), $q_asset->attr('name'), $value);

        return $error_str;

    }//end ruleDescription()


}//end class
?>