Re: [xml] Trouble figuring out xmlregexp regular expressions

[Timothy Wrona <tjwrona1992 gmail com>]

Thanks Mike! That is really helpful :)

I think I have a basic understanding of how it works now and have figured out how to compile and execute basic regular expressions.

It's still not really clear what some of the other functions mean though. There are things about "regular _expression_ context" that aren't really clear. I probably won't have to use these features though but it would be nice if they had documentation so I could understand what their purpose is.

Thanks,

Tim

On Sat, Mar 20, 2021 at 7:54 AM Mike Dalessio <mike dalessio gmail com> wrote:

Hi Tim,

I don't know much about the regular _expression_ support, but there does appear to be a test harness that exercises it. You may want to take a look at https://gitlab.gnome.org/GNOME/libxml2/-/blob/master/testRegexp.c.

-m

On Sat, Mar 20, 2021 at 12:05 AM Timothy Wrona via xml <xml gnome org> wrote:

Hi,

I am working on a library that will need to parse strings using regular expressions conformant to the XML Schema regular _expression_ grammar (https://www.regular-expressions.info/xml.html). I ended up coming across libxml2 and it looks very promising, but I can't seem to figure out how the xmlregexp portion of the library works. I read through the autogenerated documentation http://xmlsoft.org/html/libxml-xmlregexp.html, but it isn't really clear exactly where to start. Is there anywhere I can find some examples of the regular _expression_ portion of the library in use?

Thanks,

Tim

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