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package com.jclark.xsl.expr;
import com.jclark.xsl.om.*;
import java.util.StringTokenizer;
class NormalizeSpaceFunction extends FunctionOpt1 {
ConvertibleExpr makeCallExpr(ConvertibleExpr expr) throws ParseException {
final StringExpr se = expr.makeStringExpr();
return new ConvertibleStringExpr() {
public String eval(Node node, ExprContext context) throws XSLException {
return normalize(se.eval(node, context));
}
};
}
private static String normalize(String s) {
StringBuffer buf = new StringBuffer();
for (StringTokenizer e = new StringTokenizer(s); e.hasMoreElements();) {
if (buf.length() > 0)
buf.append(' ');
buf.append((String)e.nextElement());
}
return buf.toString();
}
}
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