From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- .../gnu/xml/transform/DocumentFunction.java | 244 +++++++++++++++++++++ 1 file changed, 244 insertions(+) create mode 100644 libjava/classpath/gnu/xml/transform/DocumentFunction.java (limited to 'libjava/classpath/gnu/xml/transform/DocumentFunction.java') diff --git a/libjava/classpath/gnu/xml/transform/DocumentFunction.java b/libjava/classpath/gnu/xml/transform/DocumentFunction.java new file mode 100644 index 000000000..d0aee25b3 --- /dev/null +++ b/libjava/classpath/gnu/xml/transform/DocumentFunction.java @@ -0,0 +1,244 @@ +/* DocumentFunction.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., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 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.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.Iterator; +import java.util.List; +import java.util.TreeSet; +import javax.xml.namespace.QName; +import javax.xml.transform.TransformerException; +import javax.xml.transform.dom.DOMSource; +import javax.xml.xpath.XPathFunction; +import javax.xml.xpath.XPathFunctionException; +import org.w3c.dom.Node; +import gnu.xml.xpath.Constant; +import gnu.xml.xpath.Expr; +import gnu.xml.xpath.Function; +import gnu.xml.xpath.IdFunction; + +/** + * The XSLT document()function. + * + * @author Chris Burdess + */ +final class DocumentFunction + extends Expr + implements Function, XPathFunction +{ + + final Stylesheet stylesheet; + final Node base; + List args; + List values; + + DocumentFunction(Stylesheet stylesheet, Node base) + { + this.stylesheet = stylesheet; + this.base = base; + } + + public Object evaluate(List args) + throws XPathFunctionException + { + values = args; + return evaluate(null, 1, 1); + } + + public void setArguments(List args) + { + this.args = args; + } + + public Object evaluate(Node context, int pos, int len) + { + int arity = args.size(); + if (values == null) + { + values = new ArrayList(arity); + for (int i = 0; i < arity; i++) + { + Expr arg = (Expr) args.get(i); + values.add(arg.evaluate(context, pos, len)); + } + } + Object ret; + switch (arity) + { + case 1: + Object arg = values.get(0); + if (arg instanceof Collection) + { + Collection ns = (Collection) arg; + Collection acc = new TreeSet(); + for (Iterator i = ns.iterator(); i.hasNext(); ) + { + Node node = (Node) i.next(); + String s = Expr.stringValue(node); + acc.addAll(document(s, node.getBaseURI())); + } + ret = acc; + } + else + { + String s = Expr._string(context, arg); + ret = document(s, base.getBaseURI()); + } + break; + case 2: + Object arg1 = values.get(0); + Object arg2 = values.get(1); + if (!(arg2 instanceof Collection)) + throw new RuntimeException("second argument is not a node-set"); + Collection arg2ns = (Collection) arg2; + String base2 = arg2ns.isEmpty() ? null : + ((Node) arg2ns.iterator().next()).getBaseURI(); + if (arg1 instanceof Collection) + { + Collection arg1ns = (Collection) arg1; + Collection acc = new TreeSet(); + for (Iterator i = arg1ns.iterator(); i.hasNext(); ) + { + Node node = (Node) i.next(); + String s = Expr.stringValue(node); + acc.addAll(document(s, base2)); + } + ret = acc; + } + else + { + String s = Expr._string(context, arg1); + ret = document(s, base2); + } + break; + default: + throw new RuntimeException("invalid arity"); + } + values = null; + return ret; + } + + /** + * The XSL document function. + * @see XSLT 12.1 + * @param uri the URI from which to retrieve nodes + * @param base the base URI for relative URIs + */ + Collection document(String uri, String base) + { + if ("".equals(uri) || uri == null) + uri = this.base.getBaseURI(); + + // Get fragment + Expr fragment = null; + int hi = uri.indexOf('#'); + if (hi != -1) + { + String f = uri.substring(hi + 1); + uri = uri.substring(0, hi); + // TODO handle xpointer() here + // this only handles IDs + fragment = new IdFunction(new Constant(f)); + } + + // Get document source + try + { + DOMSource source; + XSLURIResolver resolver = stylesheet.factory.resolver; + synchronized (resolver) + { + if (stylesheet.transformer != null) + { + resolver.setUserResolver(stylesheet.transformer.uriResolver); + resolver.setUserListener(stylesheet.transformer.errorListener); + } + source = resolver.resolveDOM(null, base, uri); + } + Node node = source.getNode(); + // Strip whitespace + TransformerImpl.strip(stylesheet, node); + if (fragment == null) + return Collections.singleton(node); + else + { + Object ret = fragment.evaluate(node, 1, 1); + if (!(ret instanceof Collection)) + { + // XXX Report error? + return Collections.EMPTY_SET; + } + return (Collection) ret; + } + } + catch (TransformerException e) + { + String msg = "can't open " + uri; + if (base != null) + msg += " with base " + base; + throw new RuntimeException(msg); + } + } + + public Expr clone(Object context) + { + Stylesheet s = stylesheet; + if (context instanceof Stylesheet) + s = (Stylesheet) context; + DocumentFunction f = new DocumentFunction(s, base); + 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; + } + + public boolean references(QName var) + { + for (Iterator i = args.iterator(); i.hasNext(); ) + { + if (((Expr) i.next()).references(var)) + return true; + } + return false; + } + +} -- cgit v1.2.3