XSLT 1.0 Conditional Value - xslt-1.0

Question

i have conditional like this:
<xsl:variable name="MsgIdBs">
<xsl:variable name="dateB" select="substring($MsgIdB,1,8)"/>
<xsl:variable name="biCodeB" select="substring($MsgIdB,9,8)"/>
<xsl:variable name="trTpB" select="substring($MsgIdB,17,3)"/>
<xsl:variable name="snB" select="substring($MsgIdB,20,8)"/>
<xsl:choose>
<xsl:when test="not(fn:matches($MsgIdB, '^[a-zA-Z0-9]*$') and string-length($MsgIdB) <= 35)">
<xsl:copy>
<xsl:copy-of select="$MsgIdB"/>
</xsl:copy>
<xsl:variable name="flag" select="'false'"/>
</xsl:when>
<xsl:when test="not(number(substring($dateB, 1, 4)) >= 1970 and number(substring($dateB, 5, 2)) <= 12 and number(substring($dateB, 7, 2)) <= 31)">
<xsl:copy>
<xsl:copy-of select="$MsgIdB"/>
</xsl:copy>
<xsl:variable name="flag" select="'false'"/>
</xsl:when>
<xsl:when test="not(contains($trTpB,'010') or contains($trTpB,'011') or contains($trTpB,'019') or contains($trTpB,'110') or contains($trTpB,'510') or contains($trTpB,'610') or contains($trTpB,'710') or contains($trTpB,'720') or contains($trTpB,'000'))">
<xsl:copy>
<xsl:copy-of select="$MsgIdB"/>
</xsl:copy>
<xsl:variable name="flag" select="'false'"/>
</xsl:when>
<xsl:when test="not(fn:matches($snB, '^\d+$'))">
<xsl:copy>
<xsl:copy-of select="$MsgIdB"/>
</xsl:copy>
<xsl:variable name="flag" select="'false'"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$MsgIdB"/>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
and i have a variable to check value from variable name flag. but i always get value from otherwise. never get value from variable flag on conditional. the code like this:
<xsl:variable name="output">
<xsl:choose>
<xsl:when test="$flag = 'false'">
<ns2:TxSts>Not Deal</ns2:TxSts>
</xsl:when>
<xsl:otherwise>
<ns2:TxSts>Deal</ns2:TxSts>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
how i can get the value from variable name flag on conditional and compare base with variable output.

Answer 1

Create a seperate variable for flag. This will keep the flag varible in scope for use in following code.
<xsl:variable name="flag">
<xsl:variable name="dateB" select="substring($MsgIdB,1,8)"/>
<xsl:variable name="biCodeB" select="substring($MsgIdB,9,8)"/>
<xsl:variable name="trTpB" select="substring($MsgIdB,17,3)"/>
<xsl:variable name="snB" select="substring($MsgIdB,20,8)"/>
<xsl:choose>
<xsl:when test="not(number(substring($dateB, 1, 4)) >= 1970 and number(substring($dateB, 5, 2)) <= 12 and number(substring($dateB, 7, 2)) <= 31)">
<xsl:value-of select="'false'"/>
</xsl:when>
<xsl:when test="not(contains($trTpB,'010') or contains($trTpB,'011') or contains($trTpB,'019') or contains($trTpB,'110') or contains($trTpB,'510') or contains($trTpB,'610') or contains($trTpB,'710') or contains($trTpB,'720') or contains($trTpB,'000'))">
<xsl:value-of select="'false'"/>
</xsl:when>
<xsl:when test="not(fn:matches($snB, '^\d+$'))">
<xsl:value-of select="'false'"/>
</xsl:when>
</xsl:choose>
</xsl:variable>
Use the flag to create MsgIdBs.
<xsl:variable name="MsgIdBs">
<xsl:choose>
<xsl:when test="contains($flag, 'false)">
<xsl:copy>
<xsl:copy-of select="$MsgIdB"/>
</xsl:copy>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$MsgIdB"/>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
Use the flag again to create output.
<xsl:variable name="output">
<xsl:choose>
<xsl:when test="contains($flag, 'false)">
<ns2:TxSts>Not Deal</ns2:TxSts>
</xsl:when>
<xsl:otherwise>
<ns2:TxSts>Deal</ns2:TxSts>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>