Hi David
Thanks. That was very useful.
Well yeah I didnt include the entire chunks of code. But I've checked
the File 1 in XMLSpy for well-formedness and it didnt complain. So that
shouldnt be an issue. There is quite a bit of XML that has no logical
equivalence in the other file but thats because they come from different
sources which try to model the same concept. I assume there could be
some sort of Rules which could also be established for parsing the two
files.
But you've given me a good pointer to start off my task with. Any other
comments or suggestions would be most appreciated.
Cheers
Rahil
David Carlisle wrote:
It should be relatively easy to turn each of these into some normalised
form using xslt such that you can then just run diff or some other text
file differencing tool.
I can't suggest the exact XSLT that you need as your excerpts didn't
show enough of the structure.
your xml file 1 isn't well formed (multiple top level elements) I assume
there is a surrounding element that you didn't show?
and you said
I have two XML documents which are logically equivalent
but there are several elements for which the equivalence isn't obvious,
eg what corresponds to <level>16</level> in your 2nd format?
howver running
<xsl:template match="code[(_at_)type='relationship constraint']">
relationship constraint: <xsl:value-of select="normalize-space(.)"/>
</xsl:template>
<xsl:template match="IMPLIES">
relationship constraint: [<xsl:text/>
<xsl:for-each select="CONCEPT">
<xsl:value-of select="@name"/>
<xsl:if test="postition()!=last()">, </xsl:if>
</xsl:for-each>
<xsl:text>]</xsl:text>
</xsl:template>
will turn
<code type="relationship
constraint">[MildSeverity,ModerateSeverity,SevereSeverity]
</code>
and
<IMPLIES>
<CONCEPT name="MildSeverity" ref="10238"/>
<CONCEPT name="ModerateSeverity" ref="10239"/>
<CONCEPT name="SevereSeverity" ref="10240"/>
</IMPLIES>
both into
relationship constraint: [MildSeverity,ModerateSeverity,SevereSeverity]
which should allow for easy comparison.
David
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