Andy,
I've amended the code below to show a "failsafe" I added to the if statement:
<xsl:template name="looper">
<xsl:param name="leftStringLength"/>
<xsl:param name="leftStringValue"/>
<xsl:if
test="substring($leftStringValue,number($leftStringLength),'-1') != 't' and
$leftStringLength >0 ">
String Length: <xsl:value-of select="$leftStringLength" /> <BR/>
String Value: <xsl:value-of select="$leftStringValue" /> <BR/>
String End: <xsl:value-of
select="substring($leftStringValue,number($leftStringLength),'1')" /><BR/>
<!-- recursive call -->
<xsl:call-template name="looper">
<xsl:with-param name="leftStringLength"
select="$leftStringLength - 1"/>
<xsl:with-param name="leftStringValue"
select="substring($leftStringValue,'1',number($leftStringLength)-'1')" />
</xsl:call-template>
</xsl:if>
</xsl:template>
I've put some debug code in there to write out the values of both the
stringlength and the stringvalue. It's rifling through one character at a time,
but it's ignoring the condition to test the value of the character... it stops
on the "and" condition of >0 but not on the != condition of whatever character
I supply...
heath deforrest allison
"Arrowed!"
-----Original Message-----
From: Andy J. Cupp [mailto:acupp(_at_)fmr-systems(_dot_)com]
Sent: Monday, January 27, 2003 11:51 AM
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: RE: [xsl] Infinite Recursion Looking for Whitespace.
Hi Allison. From your remarks, it seems you may have worked on this already,
but I think you need an additional test to end the recursion. Currently, if
the template never encounters a blank space, it will just keep looping, sending
nothing as the $leftStringValue parameter and -1,-2,-3,... as the
$leftStringLeft parameter. Maybe if you just have a test in the form of
<xsl:if test="$leftStringValue">, that would end your recursion when the string
has been examined.
-----Original Message-----
From: HEATH ALLISON [mailto:HEATH(_dot_)ALLISON(_at_)morningstar(_dot_)com]
Sent: Monday, January 27, 2003 10:57 AM
To: XSL List
Subject: [xsl] Infinite Recursion Looking for Whitespace.
Hello again, I'm still trying to fix my line-break problem. I'm trying to get
my recursion loop to rifle through the value of $leftStringValue from the end
to the start, but stop when it encounters the first blank space. The xsl:if
test works if I set it to the value of $stringLength with a test of "> 0". But
the second I change it to look for a space at the last position in a substring
of $stringValue it goes infinite and overflows the stack. Any suggestions?
<xsl:template name="loop">
<xsl:param name="leftStringLength"/>
<xsl:param name="leftStringValue"/>
<xsl:if
test="(normalize-space(substring($leftStringValue,number($leftStringLength),'1')))
!= ' ' ">
String Length: <xsl:value-of select="$leftStringLength" /> <BR/>
String Value: <xsl:value-of select="$leftStringValue" /> <BR/>
String End: <xsl:value-of
select="substring($leftStringValue,number($leftStringLength),'1')" /><BR/>
<!-- recursive call -->
<xsl:call-template name="loop">
<xsl:with-param name="leftStringLength"
select="$leftStringLength - 1"/>
<xsl:with-param name="leftStringValue"
select="substring($leftStringValue,'1',number($leftStringLength)-'1')" />
</xsl:call-template>
</xsl:if>
</xsl:template>
heath deforrest allison
"Arrowed!"
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