Michael Sperberg-McQueen has defined XSD types (and regexes) that match different flavours of URI in
http://www.w3.org/2011/04/XMLSchema/TypeLibrary-URI-RFC3986.xsd
and
http://www.w3.org/2011/04/XMLSchema/TypeLibrary-IRI-RFC3987.xsd
To see the way these complex regular expressions are constructed, view these documents at the raw XML level using (for example) curl.
Michael Kay
Saxonica
> On 4 May 2016, at 10:52, Christophe Marchand <> wrote:
>
> Hi all !
>
> I have to rewrite URI in many files :
>
> * xsl
> * schemas
> * RNG/RNC grammars
> * schematrons
> * nvdl
> * DTD
> * etc...
>
>
> I exactly know the protocol(s) of the URI I have to rewrite, so I can detect all URIs by a starting string
> As I have to work on various file types, and as URI may be in known tags (xsl:import, sch:validate, ...) as in variables or anywhere else, I would like to process the files as text files.
>
> I have 2 questions :
>
> * files may use various encoding. Is there a pre-defined encoding
> where URI are always correct ? Or should I check the file encoding
> before reading it ?
> * Is there a regex I can use to detect the end of the URI, knowing the
> start of the URI ? Reading RFC3987 is not so easy...
>
>
> Thanks in advance,
> Christophe
>
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