ezyang / ezyang/htmlpurifier

Admit capitalization in attribute names

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Dominant language
PHP
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Description

Currently, attribute names are not allowed to have uppercase letters (they are converted to lowercase). This got in the way of the implementation of the MathML definitionURL attribute in csymbol (see e.g. https://www.w3.org/Math/testsuite/build/main/frameset-full.xhtml).

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Research direction

The issue names no source file or test; begin by locating the attribute-name normalization path for MathML csymbol and compare it with the linked W3C MathML example. Done means uppercase attribute names such as definitionURL are preserved rather than converted to lowercase.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
web-dev
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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