Parser erroneously adds `"@_/": true` attr for self-closing stop nodes

[smoores-dev]

• Are you running the latest version?
• Have you included sample input, output, error, and expected output?
• Have you checked if you are using correct configuration?
• Did you try online tool? (there doesn't seem to be a way to add stop nodes to the online tool)

Description

When the allowBooleanAttributes flag is set on XMLParser, the parser will interpret the closing / in a self-closing stop node as a boolean attribute. This introduces further problems when attempting to build the parsed data back into a string, as it produces invalid XML. E.g., <script src="script.js" /> becomes <script src="script.js" //> (note the double slash).

It is possible to implement a workaround by adding an updateTag method that removes @_/ attributes.

Input

<script src="script.js" />

Code

const parser = new XMLParser({
    allowBooleanAttributes: true,
    ignoreAttributes: false,
    stopNodes: ["*.pre", "*.script"],
})

parser.parse(inputString)

Output

expected data

{ script: { '@_src': 'script.js', '@_/': true } }

Would you like to work on this issue?

• Yes (could use some guidance, though)
• No

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[amitguptagwl]

Thanks to highlight it. We would have to put a condition in the code to avoid an attribute having the name "/" or "/>" or ">" or any other possibility.

This check can be placed in a buildAttributesMap function and attribute function for v5.