min - XPath 1.0 - How can I get the minimum value in my selection of elements? -


example of file (exercise based on itunes xml file) :

<plist version="1.0"> <dict>     <key>major version</key><integer>1</integer>     <key>minor version</key><integer>1</integer>     ...     <dict>               <key>219</key>         <dict>             <key>track id</key><integer>219</integer>             <key>name</key><string>ruby</string>             ...             <key>track number</key><integer>1</integer>             <key>track count</key><integer>11</integer>             <key>year</key><integer>2010</integer>             <key>date modified</key><date>2010-08-28t10:16:04z</date>             <key>date added</key><date>2010-08-30t19:40:27z</date>             ...         </dict>         <key>243</key>         <dict>             <key>track id</key><integer>223</integer>             <key>name</key><string>no more mr nice guy</string>             ...             <key>track number</key><integer>1</integer>             <key>track count</key><integer>11</integer>             <key>year</key><integer>2005</integer>             <key>date modified</key><date>2010-08-28t10:17:54z</date>             <key>date added</key><date>2010-08-30t20:14:13z</date>             ...         </dict>

(i need use xpath 1.0) need name of oldest track(s) (comparing element year) don't know how min year, after have done request year element:

/plist/dict/dict/dict/integer[./preceding-sibling::key="year"][1]

is there can me?

thanks!

i know of no xpath 1.0 solution. xpath 1.0 missing crucial functionality fn:min(), order by, etc.

here's xpath 2.0 solution, in case can upgrade:

/plist//dict   [ key[. ="year"]/following-sibling::integer/xs:integer(.) eq     min(../dict/key[. ="year"]/following-sibling::integer/xs:integer(.)) ]   /key[. eq "name"]/following-sibling::string/fn:string()

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