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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: extrernal entities - part 2
 Robert Koberg wrote: > Why are you using XML? Seems like you have a fundamental > misunderstanding (OK, you have corrected some extreme beginner > mistakes) of what XML is and what is is good for... ultimately we have to translate a variety of document formats into commands for different printers. so i normalise the documents to an xml format and then use xsltproc to produce targeted outputs. not the only solution, but a very neat one. i guess i could put it into the database as well and have it output the target info. lots of ways to skin this cat. as for extreme beginner mistakes - xml is very big (in some ways) and as each branch is approached the opportunity for extreme <aside>the most overworked word in english at the moment</aside> beginner mistakes is always there. i expect to make them for many years yet ;) rick > > -Rob > > > Rick Marshall wrote: > >> <?xml version="1.0"?> >> >> <!DOCTYPE label [ >> <!ELEMENT vpn EMPTY> >> <!ATTLIST vpn code ENTITY #REQUIRED> >> <!NOTATION VPN SYSTEM "/usr/local/app/shoeman/bin/vpn"> >> <!ENTITY codex SYSTEM "1234" NDATA VPN> >> ]> >> >> <label_file><vpn code="codex" /></label_file> >> >> ok, a bit more background here. i am trying to overcome a somewhat >> classic "late-binding" problem. >> >> we get requests to print labels. the request come as text files that >> are converted to xml and stored. the text file has everything we need >> to print the labels except for some local info (essentially our >> product number). sometime between receiving the files and actually >> printing the labels all the data bits are filled in and we do have >> the required product number. this can be identified from a code >> supplied by the customer. >> >> the code above is a simplified version just to illustrate the point. >> >> when we produce the final output (zebra printer codes in this case) >> we need to include our product code. so what i want to do is embed in >> the xml a call to a function in our system that, when passed the >> customer code, will return our product code. >> >> everything i've read suggests that the above snippet should work >> (assuming /usr/local/app/sheoman/bin/vpn is executable and returns >> something). >> >> and here is the simplified stylesheet:<xsl:stylesheet version="1.0" >> xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> >> >> <xsl:output method="text"/> >> >> <xsl:template match="/"> >> <xsl:apply-templates match="label_file"/> >> </xsl:template> >> >> <xsl:template match="label_file"> >> <xsl:text> >> XX</xsl:text> >> <xsl:apply-templates match="vpn"/> >> </xsl:template> >> >> <xsl:template match="vpn"> >> <xsl:text> >> YY </xsl:text> >> <xsl:value-of select="@code"/> >> <xsl:text> ZZ</xsl:text> >> </xsl:template> >> >> </xsl:stylesheet> >> >> and the output: >> >> XX >> YY codex ZZ >> >> as you can see the entity "codex" is not being replaced by the call >> to /usr/local/... >> >> i can devise alternatives, but they would not be xml solutions and >> that has other problems downstream. >> >> ps if this is the correc tsolution then it is a good reason to hang >> on to dtds. >> >> rick >> >> ----------------------------------------------------------------- >> The xml-dev list is sponsored by XML.org <http://www.xml.org>, an >> initiative of OASIS <http://www.oasis-open.org> >> >> The list archives are at http://lists.xml.org/archives/xml-dev/ >> >> To subscribe or unsubscribe from this list use the subscription >> manager: <http://www.oasis-open.org/mlmanage/index.php> > > > > !DSPAM:420ac88d52601198355258! > begin:vcard fn:Rick Marshall n:Marshall;Rick email;internet:rjm@z... tel;cell:+61 411 287 530 x-mozilla-html:TRUE version:2.1 end:vcard 
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