xml - XSLT 1 Distinct grouping -


i'm trying distinct after grouping , doesn't work. using node :

<main>     <value>a</value>     <value>b</value>     <value>ab</value>     <value>a</value>     <value>ab</value> </main>

i can use following xpath :

main/value[not(following::value/text() = text())]

and have distinct values b, ab, a. if have following node :

<main>     <bloc>         <typ>1</typ>         <value>a</value>     </bloc>     <bloc>         <typ>1</typ>         <value>ba</value>     </bloc>     <bloc>         <typ>1</typ>         <value>b</value>     </bloc>     <bloc>         <typ>1</typ>         <value>a</value>     </bloc>     <bloc>         <typ>2</typ>         <value>a</value>     </bloc>     <bloc>         <typ>2</typ>         <value>c</value>     </bloc> </main>

i'm trying group typ before doing distinct :

main/bloc[typ=1]/value[not(following::value/text() = text())]

it doesn't work, have ba , b without a.

if try :

main/bloc[typ=1]/value

the group return values of typ.

why distinct doesn't work after grouping ?

you need include check on typ=1 in check on following node too. @ moment, second "a" not being picked because have following node of "a"

main/bloc[typ=1]/value[not(following::bloc[typ=1]/value/text() = text())]

i note have tagged xslt, , mentioned xslt in title. in case should using technique called muenchian grouping distinct items.

first, define key so

<xsl:key name="blocs_by_value" match="bloc" use="value" />

then, distinct value nodes, this

<xsl:value-of select="main/bloc[generate-id() = generate-id(key('blocs_by_value', value)[1])]/value" />

for case want distinct value nodes specific type, define key so

<xsl:key name="blocs_by_typ_value" match="bloc" use="concat(typ, '|', value)" />

then, expression distinct values this...

<xsl:value-of select="main/bloc[typ=1][generate-id() = generate-id(key('blocs_by_typ_value', concat(typ, '|', value))[1])]/value" />

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