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340

Parsing HTML with regex (lemmy.sdf.org)

submitted 1 year ago by pmjv@lemmy.sdf.org to c/linuxmemes@lemmy.world

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cross-posted from: https://lemmy.sdf.org/post/12950329

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[+] Breve@pawb.social 29 points 1 year ago* (last edited 1 week ago) (2 children)

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[–] BluesF@lemmy.world 15 points 1 year ago (1 children)

I don't think that using regex to basically do regex stuff on strings that happen to also be HTML really counts as parsing HTML

[–] hperrin@lemmy.world 11 points 1 year ago* (last edited 1 year ago) (1 children)

Technically, regex can’t pull out every link in an HTML document without potentially pulling fake links.

Take this example (using curly braces instead of angle brackets, because html is valid markdown):

{template id="link-template"}
    {a href="javascript:void(0);"}link{/a}
{/template}

That’s perfectly valid HTML, but you wouldn’t want to pull that link out, and POSIX regex can’t really avoid it. At least not with just a single regex. Imagine a link nested within like 3 template tags.