xalan:strings

xalan/src/main/java/com/github/lindenb/xslt/strings/Strings.java

@@ -0,0 +1,17 @@
+package com.github.lindenb.xslt.strings;
+
+import org.apache.xalan.extensions.ExpressionContext;
+
+
+import com.github.lindenb.xslt.AbstractXalanExtension;
+
+public class Strings extends AbstractXalanExtension
+	{
+	public Object strcmp(final ExpressionContext context,final String s1,final String s2)
+		{	
+		if(s1==null && s2==null) return 0;
+		if(s1==null && s2!=null) return -1;
+		if(s1!=null && s2==null) return 1;
+		return s1.compareTo(s2);
+		}
+	}

xalan/src/test/resources/test02.xml

@@ -0,0 +1,4 @@
+<a>
+<c><s1>ATAGXGACT</s1><s2>ZAADGATGD</s2></c>
+<c><s1>ZAADGATGD</s1><s2>ATAGXGACT</s2></c>
+</a>

xalan/src/test/resources/test02.xsl

@@ -0,0 +1,43 @@
+<?xml version='1.0'  encoding="UTF-8" ?>
+<xsl:stylesheet
+        xmlns:xsl='http://www.w3.org/1999/XSL/Transform'
+        version='1.0'
+        xmlns:xalan="http://xml.apache.org/xalan"
+        xmlns:str="xalan://com.github.lindenb.xslt.strings.Strings"
+        exclude-result-prefixes="xalan str"
+        >
+<xsl:output method="text" />
+
+<xsl:template match="/">
+<xsl:for-each select="//c">
+
+<xsl:choose>
+<xsl:when test="str:strcmp(s1,s2) &lt; 0">
+	xalan:<xsl:value-of select="s1"/> &lt; <xsl:value-of select="s2"/>;
+</xsl:when>
+<xsl:when test="str:strcmp(s1,s2) &gt; 0">
+	xalan:<xsl:value-of select="s2"/> &lt; <xsl:value-of select="s1"/>;
+</xsl:when>
+<xsl:otherwise>
+	xalan:ERROR;
+</xsl:otherwise>
+</xsl:choose>
+
+
+<xsl:choose>
+<xsl:when test="s1/text() &lt; s2/text()">
+	native:<xsl:value-of select="s1"/> &lt; <xsl:value-of select="s2"/>;
+</xsl:when>
+<xsl:when test="s2/text() &lt; s1/text()">
+	native:<xsl:value-of select="s2"/> &lt; <xsl:value-of select="s1"/>;
+</xsl:when>
+<xsl:otherwise>
+	native:ERROR;
+</xsl:otherwise>
+</xsl:choose>
+
+
+</xsl:for-each>
+</xsl:template>
+
+</xsl:stylesheet>