diff options
Diffstat (limited to 'libjava/gnu/xml/transform/FormatNumberFunction.java')
-rw-r--r-- | libjava/gnu/xml/transform/FormatNumberFunction.java | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/libjava/gnu/xml/transform/FormatNumberFunction.java b/libjava/gnu/xml/transform/FormatNumberFunction.java new file mode 100644 index 00000000000..73c5af43a2b --- /dev/null +++ b/libjava/gnu/xml/transform/FormatNumberFunction.java @@ -0,0 +1,133 @@ +/* FormatNumberFunction.java -- + Copyright (C) 2004 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +02111-1307 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +package gnu.xml.transform; + +import java.text.DecimalFormat; +import java.text.DecimalFormatSymbols; +import java.util.ArrayList; +import java.util.Collections; +import java.util.List; +import javax.xml.xpath.XPathFunction; +import javax.xml.xpath.XPathFunctionException; +import org.w3c.dom.Node; +import gnu.xml.xpath.Expr; +import gnu.xml.xpath.Function; + +/** + * The XSLT <code>format-number()</code>function. + * + * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> + */ +final class FormatNumberFunction + extends Expr + implements XPathFunction, Function +{ + + final Stylesheet stylesheet; + List args; + + FormatNumberFunction(Stylesheet stylesheet) + { + this.stylesheet = stylesheet; + } + + public Object evaluate(List args) + throws XPathFunctionException + { + // Useless... + return Collections.EMPTY_SET; + } + + public void setArguments(List args) + { + this.args = args; + } + + public Object evaluate(Node context, int pos, int len) + { + int arity = args.size(); + List values = new ArrayList(arity); + for (int i = 0; i < arity; i++) + { + Expr arg = (Expr) args.get(i); + values.add(arg.evaluate(context, pos, len)); + } + double number = _number(context, values.get(0)); + String pattern = _string(context, values.get(1)); + // Currency symbol ¤ is not supposed to be present + if (pattern.indexOf('\u00a4') != -1) + { + // Replace with $ (Xalan does this) + pattern = pattern.replace('\u00a4', '$'); + } + String dfName = null; + if (arity > 2) + { + dfName = _string(context, values.get(2)); + // otherwise the default decimal-format will be used + } + DecimalFormat df = (DecimalFormat) stylesheet.decimalFormats.get(dfName); + if (df == null) + { + throw new IllegalArgumentException("No such decimal-format: " + + dfName); + } + df.applyLocalizedPattern(pattern); + return df.format(number); + } + + public Expr clone(Object context) + { + Stylesheet s = stylesheet; + if (context instanceof Stylesheet) + { + s = (Stylesheet) context; + } + FormatNumberFunction f = new FormatNumberFunction(s); + int len = args.size(); + List args2 = new ArrayList(len); + for (int i = 0; i < len; i++) + { + args2.add(((Expr) args.get(i)).clone(context)); + } + f.setArguments(args2); + return f; + } + +} + |