[xsl] Syntax error in regex pattern

Subject: [xsl] Syntax error in regex pattern
From: "Scott Vanderbilt lists@xxxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Sat, 13 Jul 2019 16:32:33 -0000

I am trying to use a regex pattern with properties in an xsl:analyze statement, like this:

B B B <xsl:analyze-string select="$stringtoproc" regex="\p{L}">

with the intention of capturing letters only. However, when using this in an XSLT transformation in OxygenXML, I receive the following error:

Syntax error at char 2 in regular expression: Expected '{' after \112

I've googled about, looking for cases that might explain what is wrong with the pattern, but find very few examples in the wild that might point out the error.

Many thanks in advance for any assistance.

P.S. The transformation engine is Saxon-HE, running within OxygenXML Editor 21.1 (Windows 64), java.runtime.version 1.8.0_202-b08.

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