Re: anyURI mystery help
Rick Jelliffe wrote: >>Rick Jelliffe wrote: >> >> >>>If the file is on PCs, make sure you use the | instead of : for the >>>device. >>>E.g. file:///C|/temp/xxx.xsd >>> >>> >>Don't use a | instead of : for the drive. This was never part of >>a formal spec. All reasonably recent URL handlers will understand >> file:///c:/temp/yyy.xsd >>Some will *NOT* understand file:///C|/temp/xxx.xsd. >> >> > >Well, that is not my experience. For example, only yesterday. But it would >be great if this problem is going away. > >There are strict URL handlers and friendly URL handlers (which should >encompass anyURI and IRIs). The strict ones will fail if ":" is used. You >never know which one the program uses. > >Actually, I guess the correct syntax is > file:///C%25/temp/xxx.xsd >but I have never used that. > > > > Hmmm. I think it would be truer to say that there are correct URL handlers and incorrect ones. Providing that you have three (or one) slashes, after "file:", such that what follows is a path segment rather than an authority, ":" is allowed to appear unescaped, since it is one of the characters in the pchar production from RFC2396 (and 3986, for that matter). Any URL handler that requires you to escape this or replace it with a pipe is just wrong. Not, of course, that there aren't many wrong URL handlers out there.... The only real problems here arise when you have relative URIs: how should you interpret C:/foo/bar.xsd as a URI? A strict handler will treat this as an absolute URI with a scheme of "C:", whereas I have seen some URI handling code that special-cases single letter schemes like this in an attempt to be "friendly" to windows users.... Lucian -- Lucian Holland, Technical Architect +44-1865-203192 DecisionSoft Limited http://www.decisionsoft.com XML Development and Services
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