Re: Identifying attributes that should be teidata.pointer

Martin Holmes je 02/03/2017 ob 19:37 napisal:
> That's a really good idea. We'd have to allow for private URI schemes 
> too -- we want to dereference and check those -- and we're not going 
> to be checking external links, just project-internal ones, so we can 
> discard anything with a public protocol.
>
Yes, of course, you can have private schemes, but hopefully you can 
catch them with some regular expression.
> There are edge-cases, of course; you could have this:
>
> <ref type="document">
>
> versus this:
>
> <ref target="document">
>
> where the second is linking to a file with no extension. We might 
> stipulate that links to documents without extensions won't be checked. 
I'd think this is fair enough - it's a strange file that doesn't have an 
extension.
> I think we'll ignore XPointers, on the basis that this is a tool 
> intended for encoders who can't write their own diagnostic tools; any 
> project that uses a lot of XPointers probably has someone who can 
> write XSLT.
>
> So we could simply tokenize all attribute values on whitespace, check 
> each token to see if it looks like a pointer, and check it if it does.
>
Exactly, and glad that you like the idea. In case it would help, you can 
find our script - not very elegant and might not cover all cases - at 
http://nl.ijs.si/tei/tools/check-links.xsl
Best,
Tomaž
> Cheers,
> Martin
>
> On 2017-03-02 09:24 AM, Tomaž Erjavec wrote:
>> Martin Holmes je 02/03/2017 ob 18:16 napisal:
>>> What would you say is the simplest, cleanest way to generate an XPath
>>> which selects all and only the teidata.pointer attributes in a
>>> document which validates against tei_all?
>> Not cleanest, but it definitely simple: treat as a pointer any attribute
>> value that looks like a pointer, e.g. matches /^#/, /^http(s)?/ or
>> /\..{3,4}$/.
>> That's what we did, and it works pretty well - most errors in pointers
>> are to do with some typo or the target being 404. If links checking is
>> what you are after, of course.
>> Best,
>> Tomaž