Re: [xslt] Pull request : xsltproc --fileparam

[Nick Wellnhofer <wellnhofer aevum de>]

On 17/01/2018 18:11, Edouard Tisserant wrote:
> Mainly to be able to import files/string that contain a random mix of
> double and simple quotes.
>
> xsltproc --stringparam paramname "a\"b'c"

I have no idea why xsltproc disallows mixing of single and double quotes in 
stringparams. This makes no sense to me and should definitely be changed.

> It worked fine (just a bit slow) on Firefox's Transformiix. JS xslt
> interface allows passing freely any types as parameters, including huge
> strings and even node sets.

The C API and most language bindings should allow this as well.

> (what about a --xmlfileparam for xsltproc ?)

I'd suggest to pass a filename as normal parameter and use the `document` 
function to read the XML document.

> I'd like to get the parser working on libxslt too. Unfortunately, it
> relies on exslt:regex. I'll try implement exslt:regex on my repo... stay
> tuned ;)

This sounds useful, but the big question is which regex flavor to use. The 
EXSLT spec vaguely mentions "Javascript regular expression syntax" without a 
specific version or standard document. IMO, it makes more sense to reuse the 
regex implementation of libxml2 which seems to be based on XML Schema and 
should be more aligned with XPath 2.0.

> Any known previous attempt ?

Not that I know of recently, although there might have been attempts in the past.

> Any recommendation before I start ? Looks
> like a tab/space hell in there... What should be the rule ?

Yes, it's a wild mix of tabs and spaces. Personally, I prefer spaces.

Nick