Function matches() is used to find patterns specified by a regular expression in a string. If a match is found the function returns boolean value "true" otherwise it returns "false".
The first matches() is successful as the string contains string "do" followed by one or more whitespace characters and the string "you".
The second matches() is unsuccessful as it cannot find 6 non-whitespace characters in a row.
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XSLT
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0"> <xsl:output method="xml" indent="yes" omit-xml-declaration="yes"/> <xsl:template match="/aaa"> <xxx> <xsl:value-of select="matches(.,'do\s+you')"/> </xxx> <yyy> <xsl:value-of select="matches(.,'\S{6}')"/> </yyy> </xsl:template> </xsl:stylesheet> |
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XML
<aaa>How do you do?</aaa> |
Output
<xxx>true</xxx> <yyy>false</yyy> |
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