Libraries tagged by HTML validation

This extension patches TYPO3 to eliminate non-HTML5-standard self-closing tags.

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Symfony Form Extra Bundle - no html5 validation extension in development & testing

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MvcCore - Extension - Tool - MimeType & Extensions - extension to get file mimetype(s) strings array from file extension string or to get file extension(s) strings array from file mimetype string.

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MvcCore - Extension - Form - Field - File - form field input:file to upload file(s) and uploaded files validation.

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MvcCore - Extension - Form - form extension with base classes to create and render web forms with HTML5 controls, to handle and validate submited user data, to manage forms sessions for default values, to manage user input errors and to extend and develop custom fields and field groups.

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Monolyth unframework object oriented form tools

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Validate your forms, frontend, without writing a single line of javascript!

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Object oriented PHP5 form tools

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Filtering and validating html form input data.

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Simple scraper for validating nested XML/JSON examples in HTML

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HTML5 support for HTML Purifier

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Validates HTML using Validator.nu

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The easiest tool for generating XHTML 1.0 valid and CSS enabled webforms.

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PHP-HTML form manager

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Wrapper for command-line interaction with W3C HTML validator

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