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. --- libjava/classpath/gnu/xml/transform/Bindings.java | 346 ++++++++++++++++++++++ 1 file changed, 346 insertions(+) create mode 100644 libjava/classpath/gnu/xml/transform/Bindings.java (limited to 'libjava/classpath/gnu/xml/transform/Bindings.java') diff --git a/libjava/classpath/gnu/xml/transform/Bindings.java b/libjava/classpath/gnu/xml/transform/Bindings.java new file mode 100644 index 000000000..37d45880c --- /dev/null +++ b/libjava/classpath/gnu/xml/transform/Bindings.java @@ -0,0 +1,346 @@ +/* Bindings.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 gnu.java.lang.CPStringBuilder; + +import java.util.Collection; +import java.util.Collections; +import java.util.HashMap; +import java.util.HashSet; +import java.util.Iterator; +import java.util.LinkedList; +import java.util.Map; +import javax.xml.namespace.QName; +import javax.xml.xpath.XPathVariableResolver; +import org.w3c.dom.Node; + +/** + * The set of variable bindings in effect for a stylesheet. + * + * @author Chris Burdess + */ +public class Bindings + implements XPathVariableResolver, Cloneable +{ + + static final int VARIABLE = 0; + static final int PARAM = 1; + static final int WITH_PARAM = 2; + + final Stylesheet stylesheet; + + /** + * Global variables. + */ + final LinkedList> variables; + + /** + * Parameter value stack. + */ + final LinkedList> parameters; + + /** + * Argument (with-param) value stack. + */ + final LinkedList> withParameters; + + /** + * Only search globals. + */ + boolean global; + + Bindings(Stylesheet stylesheet) + { + this.stylesheet = stylesheet; + variables = new LinkedList>(); + parameters = new LinkedList>(); + withParameters = new LinkedList>(); + for (int i = 0; i < 3; i++) + { + push(i); + } + } + + public Object clone() + { + try + { + return (Bindings) super.clone(); + } + catch (CloneNotSupportedException e) + { + throw new Error(e.getMessage()); + } + } + + void push(int type) + { + switch (type) + { + case VARIABLE: + variables.addFirst(new HashMap()); + break; + case PARAM: + parameters.addFirst(new HashMap()); + break; + case WITH_PARAM: + withParameters.addFirst(new HashMap()); + break; + } + } + + void pop(int type) + { + switch (type) + { + case VARIABLE: + variables.removeFirst(); + break; + case PARAM: + parameters.removeFirst(); + break; + case WITH_PARAM: + withParameters.removeFirst(); + break; + } + } + + public boolean containsKey(QName name, int type) + { + if (global) + { + Map ctx1 = variables.getLast(); + Map ctx2 = parameters.getLast(); + return (ctx1.containsKey(name) || ctx2.containsKey(name)); + } + Iterator> i = null; + switch (type) + { + case VARIABLE: + i = variables.iterator(); + break; + case PARAM: + i = parameters.iterator(); + break; + case WITH_PARAM: + Map ctx = withParameters.getFirst(); + return ctx.containsKey(name); + } + if (i != null) + { + while (i.hasNext()) + { + Map ctx = i.next(); + if (ctx.containsKey(name)) + { + return true; + } + } + } + return false; + } + + public Object get(QName name, Node context, int pos, int len) + { + if (global) + { + Map ctx = variables.getLast(); + Object ret = ctx.get(name); + if (ret == null) + { + ctx = parameters.getLast(); + ret = ctx.get(name); + } + return ret; + } + //System.err.println("bindings.get: "+name); + //System.err.println("\t"+toString()); + Object ret = null; + //if (parameters.size() > 1 && containsKey(name, PARAM)) + // check that template defines parameter + { + Map cwp = withParameters.getFirst(); + ret = cwp.get(name); + //System.err.println("\twith-param: ret="+ret); + } + if (ret == null) + { + for (Iterator> i = variables.iterator(); + i.hasNext() && ret == null; ) + { + Map vctx = i.next(); + ret = vctx.get(name); + } + //System.err.println("\tvariable: ret="+ret); + } + if (ret == null) + { + for (Iterator> i = parameters.iterator(); + i.hasNext() && ret == null; ) + { + Map pctx = i.next(); + ret = pctx.get(name); + } + //System.err.println("\tparam: ret="+ret); + } + /*if (ret instanceof Expr && context != null) + { + Expr expr = (Expr) ret; + ret = expr.evaluate(context, 1, 1); + }*/ + if (ret instanceof Node) + { + ret = Collections.singleton(ret); + } + if (ret == null) + { + ret = ""; + } + //System.err.println("\tret="+ret); + return ret; + } + + void set(QName name, Object value, int type) + { + switch (type) + { + case VARIABLE: + Map vctx = variables.getFirst(); + vctx.put(name, value); + break; + case PARAM: + Map pctx = parameters.getFirst(); + pctx.put(name, value); + break; + case WITH_PARAM: + Map wctx = withParameters.getFirst(); + wctx.put(name, value); + break; + } + //System.err.println("Set "+name+"="+value); + } + + public Object resolveVariable(QName qName) + { + return get(qName, null, 1, 1); + } + + public String toString() + { + CPStringBuilder buf = new CPStringBuilder(); + boolean next = false; + Collection seen = new HashSet(); + Map wctx = withParameters.getFirst(); + buf.append('('); + for (Map.Entry entry : wctx.entrySet()) + { + if (next) + { + buf.append(','); + } + else + { + next = true; + } + QName key = entry.getKey(); + if (!seen.contains(key)) + { + buf.append(key); + buf.append('='); + buf.append(entry.getValue()); + seen.add(key); + } + } + buf.append(')'); + next = false; + seen.clear(); + buf.append('{'); + for (Map ctx : variables) + { + for (Map.Entry entry : ctx.entrySet()) + { + if (next) + { + buf.append(','); + } + else + { + next = true; + } + QName key = entry.getKey(); + if (!seen.contains(key)) + { + buf.append(key); + buf.append('='); + buf.append(entry.getValue()); + seen.add(key); + } + } + } + buf.append('}'); + next = false; + seen.clear(); + buf.append('['); + for (Map ctx : parameters) + { + for (Map.Entry entry : ctx.entrySet()) + { + if (next) + { + buf.append(','); + } + else + { + next = true; + } + QName key = entry.getKey(); + if (!seen.contains(key)) + { + buf.append(key); + buf.append('='); + buf.append(entry.getValue()); + seen.add(key); + } + } + } + buf.append(']'); + return buf.toString(); + } + +} -- cgit v1.2.3