How can I use a filter (token) for values like 100%?

[Aurorum-Studio]

Hello, I want to define a BBcode like

'[iframe={URL} width={XXX}]'

, and I want the value of "width" to be able to be a percentage, like 100%. However, I tried all the "build-in filters" from the document, but none of them allow a "%" to occur, how could I achieve this? Thank you very much.

The document I read. https://s9etextformatter.readthedocs.io/Filters/Built-in_filters/

[JoshyPHP]

You can use a #regexp filter with a pattern that fits your exact specifications. For example:

$configurator = new s9e\TextFormatter\Configurator;
$configurator->BBCodes->addCustom(
    '[iframe url={URL} width={REGEXP=/^[0-9]+%$/}]',
    ''
);

extract($configurator->finalize());

$text = '[iframe=... width=100%]';
$xml  = $parser->parse($text);

die("$xml\n");

<r><IFRAME url="..." width="100%">[iframe=... width=100%]</IFRAME></r>

[Aurorum-Studio]

emm, I meant that I need to add a percentage (not a specific one), while REGEXP=/^[0-9]+%$/ use a value that is preset (I think it means this, if I am wrong, please tell me), it could be any percentage entered by the user, my current extension.php looks like this, I just want to change the type of value that can be entered in the "width" attribute 😅.

use s9e\TextFormatter\Configurator; 

return [ 
  (new Extend\Frontend('forum'))
  ->css(__DIR__.'/less/forum.less'),
    (new Extend\Formatter)
    ->configure(function (Configurator $config) {
         $config->BBCodes->addCustom(
          '[iframe={URL} width={INT1} height={INT2} frameborder={INT3} marginwidth={INT4} marginheight={INT5} scrolling={SIMPLETEXT2} allowtransparency={SIMPLETEXT1}]',
           '<div class="iframe">
           <iframe 
             src="{URL}"
             width="{INT1}"
             height="{INT2}"
             frameborder="{INT3}"
             marginwidth="{INT4}"
             marginheight="{INT5}"
             vspace="0"
             hspace="0"
             allowtransparency="{SIMPLETEXT1}"
             scrolling="{SIMPLETEXT2}"
             allowfullscreen="true"
           >
           </iframe>
         </div>'
        );
    })
];`

[JoshyPHP]

You'd need to check out the regexp syntax. ^[0-9]+%$ means that it starts with 1 or more digits between 0-9, followed by % at the end. It accepts 0% or 123%. If the % is optional you have to add ?, which gives you ^[0-9]+%?$

https://regexr.com/772nl