Allow CRLF when parsing close tag name.

[ychenlian]

Hello,

I recently found an issue where es-html-parser was returning errors when the HTML file contains patterns like

<div
    class=""
    id=""
>test</div
>

with an error like this:

Parsing error: Unable to parse close tag name.
</div
    > does not match pattern of closing tag.

I initially thought the parser just doesn't accept newlines in closing tag. Then I found that the same file parses without errors in a Linux environment, which is when I realized it was actually a line ending issue.

Here's a pull request to fix it. Please let me know if you require any changes.

Thanks. 🙂

[Copilot]

Pull Request Overview

This pull request fixes an issue where the HTML parser failed to handle CRLF line endings in closing tags, causing parsing errors on Windows systems. The parser was previously only handling LF (Unix) line endings but not CRLF (Windows) line endings when parsing close tag names.

• Updated the close tag name regex pattern to handle both LF and CRLF line endings
• Added comprehensive test coverage for both LF and CRLF scenarios in closing tags

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/constants/regex.ts	Updated CLOSE_TAG_NAME_PATTERN regex to accept CRLF line endings
src/utils/tests/parse-close-tag-name.spec.ts	Added test cases for LF and CRLF line endings in close tags

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[yeonjuan]

@ychenlian Thanks for fixing it. LGTM!

[ychenlian]

No problem. 👍