Faulty underscore escaping in URLs

[blu3r4y]

BibTeX Tidy attempts to escape some characters (here: the underscore_ by \_) in URLs, which does then break the URL. I encountered this problems with Biber. Biber allows _ and fails with \_, though, BibTeX and BibLaTex may behave exactly in the opposite way.

As suggested here, underscores should rather be represented by their HTML encoding %5F which works fine for me in Biber (though, maybe someone should also test this with BibTeX and BibLaTex).

In general, using percent-encodings in URLs should always be supported (see here). I guess this would be a good strategy for all special characters in URL fields, not only underscores.

Example:

@book{mybook,
	title        = {My Book},
	author       = {John Doe},
	url          = {https://en.wikipedia.org/wiki/Underscore_(disambiguation)}
}

Tidied-up example:

@book{mybook,
	title        = {My Book},
	author       = {John Doe},
	url          = {https://en.wikipedia.org/wiki/Underscore\_(disambiguation)}
}

Suggested correction:

@book{mybook,
	title        = {My Book},
	author       = {John Doe},
	url          = {https://en.wikipedia.org/wiki/Underscore%5F(disambiguation)}
}

[prasannjeet]

I would suggest to make escaping optional, as some editors such as TexStudio do not support escaped texts if used in a separate ".bib" file.

[FlamingTempura]

Added escaping URLs as an option

Try it out and let me know if this solves your problem: https://flamingtempura.github.io/bibtex-tidy/

[blu3r4y]

Looks good to me, thank you! :)

[prasannjeet]

Perfect!