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| From: | Gregory Heytings |
| Subject: | bug#61514: 30.0.50; sadistically long xml line hangs emacs |
| Date: | Mon, 20 Feb 2023 14:06:12 +0000 |
I think it does. E.g. there's a chance that using "[^<>\n]+?\\<" instead of "[^<>\n]+?" avoids the hang (not sure if it's the right thing to do for all the regexp that can be returned by `xmltok-attribute`, tho).
That does work, indeed. Using e.g. "[^<>\n]\\{1,100\\}?" also works (but is not as efficient). Perhaps Mark (who added xmltok.el to Emacs in 2007) can help here to determine what the right thing is?
And for the stack overflow I haven't yet found its origin.
There is no stack overflow here, AFAIU. It's simply that the prepended regexp matches one or more (without any upper bound) characters except "<>\n", which means that we backtrack _a lot_ when the line is long.
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