Prestashop 1.7.8.8 - How to Allow = character to work in Product titles?

[pad420]

Hello.

Im trying to allow the = character in product titles but to no avail. 🥲
I already tried  editing the isCatalogName function in validate.php changing it from:
 

    /**
     * Check for product or category name validity.
     *
     * @param string $name Product or category name to validate
     *
     * @return bool Validity is ok or not
     */
    public static function isCatalogName($name)
    {
        return preg_match(Tools::cleanNonUnicodeSupport('/^[^<>;=#{}]*$/u'), $name);
    }

To:
 

    /**
     * Check for product or category name validity.
     *
     * @param string $name Product or category name to validate
     *
     * @return bool Validity is ok or not
     */
    public static function isCatalogName($name)
    {
        return preg_match(Tools::cleanNonUnicodeSupport('/^[^<>;#{}]*$/u'), $name);
    }

I also tried this: 
https://stackoverflow.com/questions/44946288/how-do-i-override-prestashop-1-7-to-allow-in-product-titles/45613632#45613632
I could not find the /cache/class_index.php file, I found it in /var/cache removed it but it didn't work too.

Any suggestions? Can't find anything about it online 😐

[Eutanasio]

in classes/Validate.php locate the line:
 

const NAME_REGEX = '/^[^<>={}]*$/u';

characters inside this are defined as non allowed for specific fields, which include the product title. By removing = from this line you may be able to use it in the product titles.

Don't forget to clear cache after saving changes