Extract Delimited Data in a string input - xslt

Question

I am trying to convert a string which is delimited by a ";"
Here are the possible inputs that i have
Possibility 1: <String>1;2;3;4;5;6;7;8;9;10;11</String>
Possibility 2: <String>1;2;3;4;5</String>
Possibility 3: <String>1;2;3;4;5;6;7;8;9</String>
Possibility 4: <String>1;2;3;4</String>
Possibility 5: <String>1;2;3;4;5;;;;;10;11</String>
Few points concerning the logic
Would like to have the above delimited strings mapped to individual
fields like shown below.
Not concerned about the values in position 6
and 7 and hence they are not seen in any of the outputs
Towards the
end of the output is an element with name "combined" which is a
concatenation of values received in string delimited by an "_"
Order of concatenation though is slightly different which is mentioned here
1_2_3_4_5_8_11_9_10
If a value is not present in input string then it remains blank like 1__3_4_5__11__10
Output that i would like to see for each of above mentioned possibilities is
Possibility 1:
<A>1</A>
<B>2</B>
<C>3</C>
<D>4</D>
<E>5</E>
<F>8</F>
<G>9</G>
<H>10</H>
<I>11</I>
<Combined>1_2_3_4_5_8_11_9_10</Combined>
Possibility 2:
<A>1</A>
<B>2</B>
<C>3</C>
<D>4</D>
<E>5</E>
<F></F>
<G></G>
<H></H>
<I></I>
<Combined>1_2_3_4_5____</Combined>
Possibility 3:
<A>1</A>
<B>2</B>
<C>3</C>
<D>4</D>
<E>5</E>
<F>8</F>
<G>9</G>
<H></H>
<I></I>
<Combined>1_2_3_4_5_8__9_</Combined>
Possibility 4:
<A>1</A>
<B>2</B>
<C>3</C>
<D>4</D>
<E></E>
<F></F>
<G></G>
<H></H>
<I>11</I>
<Combined>1_2_3_4_____</Combined>
Possibility 5:
<A>1</A>
<B>2</B>
<C>3</C>
<D>4</D>
<E>5</E>
<F></F>
<G></G>
<H>10</H>
<I>11</I>
<Combined>1_2_3_4_5__11__10</Combined>
I am able to get the desired output if i assume that string is of fixed length with 11 delimited sets and this i was able to achieve by using substring before and after functions
However for possibilities like 2 3 4 provider is not always sending the empty delimiters and then my xsl doesnt seem to work.
Any help in this context please?

Answer 1

If you are using Xalan, then this should work for you:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:str="http://exslt.org/strings"
extension-element-prefixes="str">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:template match="/">
<xsl:variable name="tokens" select="str:split(String, ';')" />
<root>
<A>
<xsl:value-of select="$tokens[1]"/>
</A>
<B>
<xsl:value-of select="$tokens[2]"/>
</B>
<C>
<xsl:value-of select="$tokens[3]"/>
</C>
<D>
<xsl:value-of select="$tokens[4]"/>
</D>
<E>
<xsl:value-of select="$tokens[5]"/>
</E>
<F>
<xsl:value-of select="$tokens[8]"/>
</F>
<G>
<xsl:value-of select="$tokens[9]"/>
</G>
<H>
<xsl:value-of select="$tokens[10]"/>
</H>
<I>
<xsl:value-of select="$tokens[11]"/>
</I>
<Combined>
<xsl:value-of select="$tokens[1]"/>
<xsl:text>_</xsl:text>
<xsl:value-of select="$tokens[2]"/>
<xsl:text>_</xsl:text>
<xsl:value-of select="$tokens[3]"/>
<xsl:text>_</xsl:text>
<xsl:value-of select="$tokens[4]"/>
<xsl:text>_</xsl:text>
<xsl:value-of select="$tokens[5]"/>
<xsl:text>_</xsl:text>
<xsl:value-of select="$tokens[8]"/>
<xsl:text>_</xsl:text>
<xsl:value-of select="$tokens[11]"/>
<xsl:text>_</xsl:text>
<xsl:value-of select="$tokens[9]"/>
<xsl:text>_</xsl:text>
<xsl:value-of select="$tokens[10]"/>
</Combined>
</root>
</xsl:template>
</xsl:stylesheet>