I'd like to add support for <redirect:write append="yes"> to libxslt, mirroring functionality that's available in other XSLT engines.
The problem is that this requires adding an "append" flag to xmlFileOpenW(), which ends up percolating up through the public API, which isn't acceptable. For example, while xmlFileOpenW() is static, the function signature is used xmlRegisterOutputCallbacks(), which is part of the public API and can't be changed. The alternative is to create a parallel set of functions that mirror the existing ones but add a "flags" parameter that can include an append flag. This will retain current behaviours and APIs, but will allow new code to call new functions which accept this flags parameter. So where xsltDocumentElem() currently calls xsltSaveResultToFilename(), it will call xsltSaveResultToFilenameFlags() with the flags parameter indicating if the 'append="yes"' attribute was given. Callers can continue to call xmlRegisterOutputCallbacks() with their existing IO functions, or can call xmlRegisterOutputCallbacksFlags() and pass in functions that accept the new flags parameter. This solution, while repetative, seems like the only workable answer. Are there any other suggestions or alternatives? Is the "Flags" suffix acceptable? If so, I'll work up a patch. Thanks, Phil _______________________________________________ xslt mailing list, project page http://xmlsoft.org/XSLT/ xslt@gnome.org http://mail.gnome.org/mailman/listinfo/xslt
