--- Dimitre Novatchev <dnovatchev(_at_)yahoo(_dot_)com> wrote:
What seems to be simpler:
string-length(substring-before($x,
substring(normalize-space($x), 1, 1)
)
)
=====
Cheers,
Dimitre Novatchev.
http://fxsl.sourceforge.net/ -- the home of FXSL
Thanks to Grainne Reilly, who raised the problem of getting the count
of leading blanks of a string, I've come to a single XPath expression
that returns a trimmed string.
If we have the following source xml:
-----------------------------------
<t> xyz a b c </t>
Four leading spaces and two trailing ones.
and this transformation:
-----------------------
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:output method="text"/>
<xsl:variable name="x" select="string(/)"/>
<xsl:template match="/">
Original string: <xsl:text/>
'<xsl:value-of select="$x"/>'
Leading blanks: <xsl:text/>
<xsl:value-of
select="string-length(substring-before($x,
substring(normalize-space($x),
1,
1)
)
)"/>
Trailing blanks: <xsl:text/>
<xsl:value-of
select="string-length(substring-after($x,
substring(normalize-space($x),
string-length(normalize-space($x)),
1
)
)
)"/>
Trimmed: <xsl:text/>
'<xsl:value-of
select="substring($x,
string-length(substring-before($x,
substring(normalize-space($x), 1, 1)
)
) + 1,
string-length($x)
-
string-length(
substring-before($x,
substring(normalize-space($x),
1,
1)
)
)
-
string-length(
substring-after
($x,
substring(normalize-space($x),
string-length(
normalize-space($x)
),
1)
)
)
)"/>'
</xsl:template>
</xsl:stylesheet>
The result is:
-------------
Original string:
' xyz a b c '
Leading blanks: 4
Trailing blanks: 2
Trimmed:
'xyz a b c'
=====
Cheers,
Dimitre Novatchev.
http://fxsl.sourceforge.net/ -- the home of FXSL
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