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Diffstat (limited to 'libjava/gnu/xml/transform/Stylesheet.java')
| -rw-r--r-- | libjava/gnu/xml/transform/Stylesheet.java | 1728 |
1 files changed, 0 insertions, 1728 deletions
diff --git a/libjava/gnu/xml/transform/Stylesheet.java b/libjava/gnu/xml/transform/Stylesheet.java deleted file mode 100644 index 5efd5ca3e3e..00000000000 --- a/libjava/gnu/xml/transform/Stylesheet.java +++ /dev/null @@ -1,1728 +0,0 @@ -/* Stylesheet.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.text.DecimalFormat; -import java.text.DecimalFormatSymbols; -import java.util.ArrayList; -import java.util.Collection; -import java.util.Collections; -import java.util.HashSet; -import java.util.Iterator; -import java.util.LinkedHashMap; -import java.util.LinkedHashSet; -import java.util.LinkedList; -import java.util.List; -import java.util.Map; -import java.util.Set; -import java.util.StringTokenizer; -import java.util.TreeSet; -import javax.xml.XMLConstants; -import javax.xml.namespace.NamespaceContext; -import javax.xml.namespace.QName; -import javax.xml.transform.Source; -import javax.xml.transform.TransformerConfigurationException; -import javax.xml.transform.TransformerException; -import javax.xml.xpath.XPathFunction; -import javax.xml.xpath.XPathFunctionResolver; -import javax.xml.xpath.XPathExpressionException; -import org.w3c.dom.Attr; -import org.w3c.dom.Document; -import org.w3c.dom.DOMException; -import org.w3c.dom.Element; -import org.w3c.dom.NamedNodeMap; -import org.w3c.dom.Node; -import org.w3c.dom.Text; -import org.w3c.dom.UserDataHandler; -import gnu.xml.xpath.Expr; -import gnu.xml.xpath.NameTest; -import gnu.xml.xpath.NodeTypeTest; -import gnu.xml.xpath.Pattern; -import gnu.xml.xpath.Selector; -import gnu.xml.xpath.Root; -import gnu.xml.xpath.Test; -import gnu.xml.xpath.XPathImpl; - -/** - * An XSL stylesheet. - * - * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> - */ -class Stylesheet - implements NamespaceContext, XPathFunctionResolver, UserDataHandler, Cloneable -{ - - static final String XSL_NS = "http://www.w3.org/1999/XSL/Transform"; - - static final int OUTPUT_XML = 0; - static final int OUTPUT_HTML = 1; - static final int OUTPUT_TEXT = 2; - - final TransformerFactoryImpl factory; - TransformerImpl transformer; - Stylesheet parent; - final XPathImpl xpath; - final String systemId; - final int precedence; - - final boolean debug; - - /** - * Version of XSLT. - */ - String version; - - Collection extensionElementPrefixes; - Collection excludeResultPrefixes; - - /** - * Set of element names for which we should strip whitespace. - */ - Set stripSpace; - - /** - * Set of element names for which we should preserve whitespace. - */ - Set preserveSpace; - - /** - * Output options. - */ - int outputMethod; - String outputVersion; - String outputEncoding; - boolean outputOmitXmlDeclaration; - boolean outputStandalone; - String outputPublicId; - String outputSystemId; - Collection outputCdataSectionElements; - boolean outputIndent; - String outputMediaType; - - /** - * Keys. - */ - Collection keys; - - /** - * Decimal formats. - */ - Map decimalFormats; - - /** - * Namespace aliases. - */ - Map namespaceAliases; - - /** - * Attribute-sets. - */ - List attributeSets; - - /** - * Variables. - */ - List variables; - - /** - * Variable and parameter bindings. - */ - Bindings bindings; - - /** - * Templates. - */ - LinkedList templates; - - TemplateNode builtInNodeTemplate; - TemplateNode builtInTextTemplate; - - /** - * Holds the current node while parsing. - * Necessary to associate the document function with its declaring node, - * to resolve namespaces, and to maintain the current node for the - * current() function. - */ - Node current; - - /** - * Set by a terminating message. - */ - transient boolean terminated; - - /** - * Current template in force. - */ - transient Template currentTemplate; - - Stylesheet(TransformerFactoryImpl factory, - Stylesheet parent, - Document doc, - String systemId, - int precedence) - throws TransformerConfigurationException - { - this.factory = factory; - this.systemId = systemId; - this.precedence = precedence; - this.parent = parent; - extensionElementPrefixes = new HashSet(); - excludeResultPrefixes = new HashSet(); - stripSpace = new LinkedHashSet(); - preserveSpace = new LinkedHashSet(); - outputCdataSectionElements = new LinkedHashSet(); - xpath = (XPathImpl) factory.xpathFactory.newXPath(); - if (parent == null) - { - bindings = new Bindings(this); - attributeSets = new LinkedList(); - variables = new LinkedList(); - namespaceAliases = new LinkedHashMap(); - templates = new LinkedList(); - keys = new LinkedList(); - decimalFormats = new LinkedHashMap(); - initDefaultDecimalFormat(); - xpath.setNamespaceContext(this); - xpath.setXPathFunctionResolver(this); - } - else - { - /* Test for import circularity */ - for (Stylesheet ctx = this; ctx.parent != null; ctx = ctx.parent) - { - if (systemId != null && systemId.equals(ctx.parent.systemId)) - { - String msg = "circularity importing " + systemId; - throw new TransformerConfigurationException(msg); - } - } - /* OK */ - Stylesheet root = getRootStylesheet(); - bindings = root.bindings; - attributeSets = root.attributeSets; - variables = root.variables; - namespaceAliases = root.namespaceAliases; - templates = root.templates; - keys = root.keys; - decimalFormats = root.decimalFormats; - xpath.setNamespaceContext(root); - xpath.setXPathFunctionResolver(root); - } - xpath.setXPathVariableResolver(bindings); - - Test anyNode = new NodeTypeTest((short) 0); - List tests = Collections.singletonList(anyNode); - builtInNodeTemplate = - new ApplyTemplatesNode(null, null, - new Selector(Selector.CHILD, tests), - null, null, null, true); - builtInTextTemplate = - new ValueOfNode(null, null, - new Selector(Selector.SELF, tests), - false); - - parse(doc.getDocumentElement(), true); - current = doc; // Alow namespace resolution during processing - - debug = ("yes".equals(System.getProperty("xsl.debug"))); - - if (debug) - { - System.err.println("Stylesheet: " + doc.getDocumentURI()); - for (Iterator i = templates.iterator(); i.hasNext(); ) - { - Template t = (Template) i.next(); - t.list(System.err); - System.err.println("--------------------"); - } - } - } - - Stylesheet getRootStylesheet() - { - Stylesheet stylesheet = this; - while (stylesheet.parent != null) - { - stylesheet = stylesheet.parent; - } - return stylesheet; - } - - void initDefaultDecimalFormat() - { - DecimalFormat defaultDecimalFormat = new DecimalFormat(); - DecimalFormatSymbols symbols = new DecimalFormatSymbols(); - symbols.setDecimalSeparator('.'); - symbols.setGroupingSeparator(','); - symbols.setPercent('%'); - symbols.setPerMill('\u2030'); - symbols.setZeroDigit('0'); - symbols.setDigit('#'); - symbols.setPatternSeparator(';'); - symbols.setInfinity("Infinity"); - symbols.setNaN("NaN"); - symbols.setMinusSign('-'); - defaultDecimalFormat.setDecimalFormatSymbols(symbols); - decimalFormats.put(null, defaultDecimalFormat); - } - - // -- Cloneable -- - - public Object clone() - { - try - { - Stylesheet clone = (Stylesheet) super.clone(); - clone.bindings = (Bindings) bindings.clone(); - - LinkedList templates2 = new LinkedList(); - for (Iterator i = templates.iterator(); i.hasNext(); ) - { - Template t = (Template) i.next(); - templates2.add(t.clone(clone)); - } - clone.templates = templates2; - - LinkedList attributeSets2 = new LinkedList(); - for (Iterator i = attributeSets.iterator(); i.hasNext(); ) - { - AttributeSet as = (AttributeSet) i.next(); - attributeSets2.add(as.clone(clone)); - } - clone.attributeSets = attributeSets2; - - LinkedList variables2 = new LinkedList(); - for (Iterator i = variables.iterator(); i.hasNext(); ) - { - ParameterNode var = (ParameterNode) i.next(); - variables2.add(var.clone(clone)); - } - clone.variables = variables2; - - LinkedList keys2 = new LinkedList(); - for (Iterator i = keys.iterator(); i.hasNext(); ) - { - Key k = (Key) i.next(); - keys2.add(k.clone(clone)); - } - clone.keys = keys2; - - return clone; - } - catch (CloneNotSupportedException e) - { - throw new Error(e.getMessage()); - } - } - - // -- Variable evaluation -- - - void initTopLevelVariables(Node context) - throws TransformerException - { - for (Iterator i = variables.iterator(); i.hasNext(); ) - { - ParameterNode var = (ParameterNode) i.next(); - bindings.set(var.name, - var.getValue(this, null, context, 1, 1), - var.global); - } - } - - // -- NamespaceContext -- - - public String getNamespaceURI(String prefix) - { - return (current == null) ? null : current.lookupNamespaceURI(prefix); - } - - public String getPrefix(String namespaceURI) - { - return (current == null) ? null : current.lookupPrefix(namespaceURI); - } - - public Iterator getPrefixes(String namespaceURI) - { - // TODO - return Collections.singleton(getPrefix(namespaceURI)).iterator(); - } - - // -- Template selection -- - - TemplateNode getTemplate(QName mode, Node context, boolean applyImports) - throws TransformerException - { - //System.err.println("getTemplate: mode="+mode+" context="+context); - Set candidates = new TreeSet(); - for (Iterator j = templates.iterator(); j.hasNext(); ) - { - Template t = (Template) j.next(); - boolean isMatch = t.matches(mode, context); - if (applyImports) - { - if (currentTemplate == null) - { - String msg = "current template may not be null " + - "during apply-imports"; - throw new TransformerException(msg); - } - if (!currentTemplate.imports(t)) - { - isMatch = false; - } - } - //System.err.println("\t"+context+" "+t+"="+isMatch); - if (isMatch) - { - candidates.add(t); - } - } - //System.err.println("\tcandidates="+candidates); - if (candidates.isEmpty()) - { - // Apply built-in template - // Current template is unchanged - //System.err.println("\tbuiltInTemplate context="+context); - switch (context.getNodeType()) - { - case Node.ELEMENT_NODE: - case Node.DOCUMENT_NODE: - case Node.DOCUMENT_FRAGMENT_NODE: - case Node.PROCESSING_INSTRUCTION_NODE: - case Node.COMMENT_NODE: - return builtInNodeTemplate; - case Node.TEXT_NODE: - case Node.ATTRIBUTE_NODE: - return builtInTextTemplate; - default: - return null; - } - } - else - { - Template t = (Template) candidates.iterator().next(); - // Set current template - currentTemplate = t; - //System.err.println("\ttemplate="+t+" context="+context); - return t.node; - } - } - - TemplateNode getTemplate(QName mode, QName name) - throws TransformerException - { - //System.err.println("getTemplate: mode="+mode+" name="+name); - Set candidates = new TreeSet(); - for (Iterator j = templates.iterator(); j.hasNext(); ) - { - Template t = (Template) j.next(); - boolean isMatch = t.matches(name); - //System.err.println("\t"+name+" "+t+"="+isMatch); - if (isMatch) - { - candidates.add(t); - } - } - if (candidates.isEmpty()) - { - return null; - //throw new TransformerException("template '" + name + "' not found"); - } - Template t = (Template) candidates.iterator().next(); - //System.err.println("\ttemplate="+t+" context="+context); - return t.node; - } - - /** - * template - */ - final Template parseTemplate(Node node, NamedNodeMap attrs) - throws TransformerConfigurationException, XPathExpressionException - { - String n = getAttribute(attrs, "name"); - QName name = (n == null) ? null : getQName(n); - String m = getAttribute(attrs, "match"); - Pattern match = null; - if (m != null) - { - try - { - match = (Pattern) xpath.compile(m); - } - catch (ClassCastException e) - { - String msg = "illegal pattern: " + m; - throw new TransformerConfigurationException(msg); - } - } - String p = getAttribute(attrs, "priority"); - String mm = getAttribute(attrs, "mode"); - QName mode = (mm == null) ? null : getQName(mm); - double priority = (p == null) ? Template.DEFAULT_PRIORITY : - Double.parseDouble(p); - return new Template(this, name, match, parse(node.getFirstChild()), - precedence, priority, mode); - } - - /** - * output - */ - final void parseOutput(Node node, NamedNodeMap attrs) - throws TransformerConfigurationException - { - String method = getAttribute(attrs, "method"); - if ("xml".equals(method) || method == null) - { - outputMethod = OUTPUT_XML; - } - else if ("html".equals(method)) - { - outputMethod = OUTPUT_HTML; - } - else if ("text".equals(method)) - { - outputMethod = OUTPUT_TEXT; - } - else - { - String msg = "unsupported output method: " + method; - DOMSourceLocator l = new DOMSourceLocator(node); - throw new TransformerConfigurationException(msg, l); - } - outputPublicId = getAttribute(attrs, "public-id"); - outputSystemId = getAttribute(attrs, "system-id"); - outputEncoding = getAttribute(attrs, "encoding"); - String indent = getAttribute(attrs, "indent"); - if (indent != null) - { - outputIndent = "yes".equals(indent); - } - outputVersion = getAttribute(attrs, "version"); - String omitXmlDecl = getAttribute(attrs, "omit-xml-declaration"); - if (omitXmlDecl != null) - { - outputOmitXmlDeclaration = "yes".equals(omitXmlDecl); - } - String standalone = getAttribute(attrs, "standalone"); - if (standalone != null) - { - outputStandalone = "yes".equals(standalone); - } - outputMediaType = getAttribute(attrs, "media-type"); - String cdataSectionElements = - getAttribute(attrs, "cdata-section-elements"); - if (cdataSectionElements != null) - { - StringTokenizer st = new StringTokenizer(cdataSectionElements, " "); - while (st.hasMoreTokens()) - { - outputCdataSectionElements.add(st.nextToken()); - } - } - } - - /** - * key - */ - final void parseKey(Node node, NamedNodeMap attrs) - throws TransformerConfigurationException, XPathExpressionException - { - String n = getRequiredAttribute(attrs, "name", node); - String m = getRequiredAttribute(attrs, "match", node); - String u = getRequiredAttribute(attrs, "use", node); - QName name = getQName(n); - Expr use = (Expr) xpath.compile(u); - try - { - Pattern match = (Pattern) xpath.compile(m); - Key key = new Key(name, match, use); - keys.add(key); - } - catch (ClassCastException e) - { - throw new TransformerConfigurationException("invalid pattern: " + m); - } - } - - /** - * decimal-format - */ - final void parseDecimalFormat(Node node, NamedNodeMap attrs) - throws TransformerConfigurationException - { - String dfName = getAttribute(attrs, "name"); - DecimalFormat df = new DecimalFormat(); - DecimalFormatSymbols symbols = new DecimalFormatSymbols(); - symbols.setDecimalSeparator(parseDFChar(attrs, "decimal-separator", '.')); - symbols.setGroupingSeparator(parseDFChar(attrs, "grouping-separator", ',')); - symbols.setInfinity(parseDFString(attrs, "infinity", "Infinity")); - symbols.setMinusSign(parseDFChar(attrs, "minus-sign", '-')); - symbols.setNaN(parseDFString(attrs, "NaN", "NaN")); - symbols.setPercent(parseDFChar(attrs, "percent", '%')); - symbols.setPerMill(parseDFChar(attrs, "per-mille", '\u2030')); - symbols.setZeroDigit(parseDFChar(attrs, "zero-digit", '0')); - symbols.setDigit(parseDFChar(attrs, "digit", '#')); - symbols.setPatternSeparator(parseDFChar(attrs, "pattern-separator", ';')); - df.setDecimalFormatSymbols(symbols); - decimalFormats.put(dfName, df); - } - - private final char parseDFChar(NamedNodeMap attrs, String name, char def) - throws TransformerConfigurationException - { - Node attr = attrs.getNamedItem(name); - try - { - return (attr == null) ? def : attr.getNodeValue().charAt(0); - } - catch (StringIndexOutOfBoundsException e) - { - throw new TransformerConfigurationException("empty attribute '" + - name + - "' in decimal-format", e); - } - } - - private final String parseDFString(NamedNodeMap attrs, String name, - String def) - { - Node attr = attrs.getNamedItem(name); - return (attr == null) ? def : attr.getNodeValue(); - } - - /** - * namespace-alias - */ - final void parseNamespaceAlias(Node node, NamedNodeMap attrs) - throws TransformerConfigurationException - { - String sp = getRequiredAttribute(attrs, "stylesheet-prefix", node); - String rp = getRequiredAttribute(attrs, "result-prefix", node); - namespaceAliases.put(sp, rp); - } - - /** - * attribute-set - */ - final void parseAttributeSet(Node node, NamedNodeMap attrs) - throws TransformerConfigurationException, XPathExpressionException - { - TemplateNode children = parse(node.getFirstChild()); - String name = getRequiredAttribute(attrs, "name", node); - String uas = getAttribute(attrs, "use-attribute-sets"); - attributeSets.add(new AttributeSet(children, name, uas)); - } - - /** - * Parse top-level elements. - */ - void parse(Node node, boolean root) - throws TransformerConfigurationException - { - if (node == null) - { - return; - } - current = node; - try - { - String namespaceUri = node.getNamespaceURI(); - if (XSL_NS.equals(namespaceUri) && - node.getNodeType() == Node.ELEMENT_NODE) - { - String name = node.getLocalName(); - NamedNodeMap attrs = node.getAttributes(); - if ("stylesheet".equals(name)) - { - version = getAttribute(attrs, "version"); - String eep = getAttribute(attrs, "extension-element-prefixes"); - if (eep != null) - { - StringTokenizer st = new StringTokenizer(eep); - while (st.hasMoreTokens()) - { - extensionElementPrefixes.add(st.nextToken()); - } - } - String erp = getAttribute(attrs, "exclude-result-prefixes"); - if (erp != null) - { - StringTokenizer st = new StringTokenizer(erp); - while (st.hasMoreTokens()) - { - excludeResultPrefixes.add(st.nextToken()); - } - } - parse(node.getFirstChild(), false); - return; - } - else if ("template".equals(name)) - { - templates.addFirst(parseTemplate(node, attrs)); - } - else if ("param".equals(name) || - "variable".equals(name)) - { - boolean global = "variable".equals(name); - TemplateNode content = parse(node.getFirstChild()); - String paramName = getRequiredAttribute(attrs, "name", node); - String select = getAttribute(attrs, "select"); - if (select != null && select.length() > 0) - { - if (content != null) - { - String msg = "parameter '" + paramName + - "' has both select and content"; - DOMSourceLocator l = new DOMSourceLocator(node); - throw new TransformerConfigurationException(msg, l); - } - Expr expr = (Expr) xpath.compile(select); - variables.add(new ParameterNode(null, null, - paramName, - expr, global)); - } - else - { - variables.add(new ParameterNode(content, null, - paramName, - null, global)); - } - bindings.set(paramName, content, global); - } - else if ("include".equals(name) || "import".equals(name)) - { - int delta = "import".equals(name) ? -1 : 0; - String href = getRequiredAttribute(attrs, "href", node); - Source source; - synchronized (factory.resolver) - { - if (transformer != null) - { - factory.resolver - .setUserResolver(transformer.getURIResolver()); - factory.resolver - .setUserListener(transformer.getErrorListener()); - } - source = factory.resolver.resolve(systemId, href); - } - factory.newStylesheet(source, precedence + delta, this); - } - else if ("output".equals(name)) - { - parseOutput(node, attrs); - } - else if ("preserve-space".equals(name)) - { - String elements = - getRequiredAttribute(attrs, "elements", node); - StringTokenizer st = new StringTokenizer(elements, - " \t\n\r"); - while (st.hasMoreTokens()) - { - preserveSpace.add(parseNameTest(st.nextToken())); - } - } - else if ("strip-space".equals(name)) - { - String elements = - getRequiredAttribute(attrs, "elements", node); - StringTokenizer st = new StringTokenizer(elements, - " \t\n\r"); - while (st.hasMoreTokens()) - { - stripSpace.add(parseNameTest(st.nextToken())); - } - } - else if ("key".equals(name)) - { - parseKey(node, attrs); - } - else if ("decimal-format".equals(name)) - { - parseDecimalFormat(node, attrs); - } - else if ("namespace-alias".equals(name)) - { - parseNamespaceAlias(node, attrs); - } - else if ("attribute-set".equals(name)) - { - parseAttributeSet(node, attrs); - } - parse(node.getNextSibling(), false); - } - else if (root) - { - // Literal document element - Attr versionNode = - ((Element)node).getAttributeNodeNS(XSL_NS, "version"); - if (versionNode == null) - { - String msg = "no xsl:version attribute on literal result node"; - DOMSourceLocator l = new DOMSourceLocator(node); - throw new TransformerConfigurationException(msg, l); - } - version = versionNode.getValue(); - Node rootClone = node.cloneNode(true); - NamedNodeMap attrs = rootClone.getAttributes(); - attrs.removeNamedItemNS(XSL_NS, "version"); - templates.add(new Template(this, null, new Root(), - parse(rootClone), - precedence, - Template.DEFAULT_PRIORITY, - null)); - } - else - { - // Skip unknown elements, text, comments, etc - parse(node.getNextSibling(), false); - } - } - catch (TransformerException e) - { - DOMSourceLocator l = new DOMSourceLocator(node); - throw new TransformerConfigurationException(e.getMessage(), l, e); - } - catch (DOMException e) - { - DOMSourceLocator l = new DOMSourceLocator(node); - throw new TransformerConfigurationException(e.getMessage(), l, e); - } - catch (XPathExpressionException e) - { - DOMSourceLocator l = new DOMSourceLocator(node); - throw new TransformerConfigurationException(e.getMessage(), l, e); - } - } - - final NameTest parseNameTest(String token) - { - if ("*".equals(token)) - { - return new NameTest(null, true, true); - } - else if (token.endsWith(":*")) - { - QName qName = getQName(token.substring(0, token.length() - 2)); - return new NameTest(qName, true, false); - } - else - { - QName qName = getQName(token); - return new NameTest(qName, false, false); - } - } - - final QName getQName(String name) - { - QName qName = QName.valueOf(name); - String prefix = qName.getPrefix(); - String uri = qName.getNamespaceURI(); - if (prefix != null && (uri == null || uri.length() == 0)) - { - uri = getNamespaceURI(prefix); - String localName = qName.getLocalPart(); - qName = new QName(uri, localName, prefix); - } - return qName; - } - - final TemplateNode parseAttributeValueTemplate(String value, Node source) - throws TransformerConfigurationException, XPathExpressionException - { - current = source; - // Tokenize - int len = value.length(); - int off = 0; - List tokens = new ArrayList(); // text tokens - List types = new ArrayList(); // literal or expression - int depth = 0; - for (int i = 0; i < len; i++) - { - char c = value.charAt(i); - if (c == '{') - { - if (i < (len - 1) && value.charAt(i + 1) == '{') - { - tokens.add(value.substring(off, i + 1)); - types.add(Boolean.FALSE); - i++; - off = i + 1; - continue; - } - if (depth == 0) - { - if (i - off > 0) - { - tokens.add(value.substring(off, i)); - types.add(Boolean.FALSE); - } - off = i + 1; - } - depth++; - } - else if (c == '}') - { - if (i < (len - 1) && value.charAt(i + 1) == '}') - { - tokens.add(value.substring(off, i + 1)); - types.add(Boolean.FALSE); - i++; - off = i + 1; - continue; - } - if (depth == 1) - { - if (i - off > 0) - { - tokens.add(value.substring(off, i)); - types.add(Boolean.TRUE); - } - else - { - String msg = "attribute value template " + - "must contain expression: " + value; - DOMSourceLocator l = new DOMSourceLocator(source); - throw new TransformerConfigurationException(msg, l); - } - off = i + 1; - } - depth--; - } - } - if (depth > 0) - { - String msg = "invalid attribute value template: " + value; - throw new TransformerConfigurationException(msg); - } - if (len - off > 0) - { - // Trailing text - tokens.add(value.substring(off)); - types.add(Boolean.FALSE); - } - - // Construct template node tree - TemplateNode ret = null; - Document doc = source.getOwnerDocument(); - len = tokens.size(); - for (int i = len - 1; i >= 0; i--) - { - String token = (String) tokens.get(i); - Boolean type = (Boolean) types.get(i); - if (type == Boolean.TRUE) - { - // Expression text - Expr select = (Expr) xpath.compile(token); - ret = new ValueOfNode(null, ret, select, false); - } - else - { - // Verbatim text - ret = new LiteralNode(null, ret, doc.createTextNode(token)); - } - } - return ret; - } - - boolean isPreserved(Text text) - throws TransformerConfigurationException - { - // Check characters in text - String value = text.getData(); - if (value != null) - { - int len = value.length(); - for (int i = 0; i < len; i++) - { - char c = value.charAt(i); - if (c != 0x20 && c != 0x09 && c != 0x0a && c != 0x0d) - { - return true; - } - } - } - // Check parent node - Node ctx = text.getParentNode(); - if (!preserveSpace.isEmpty()) - { - for (Iterator i = preserveSpace.iterator(); i.hasNext(); ) - { - NameTest preserveTest = (NameTest) i.next(); - if (preserveTest.matches(ctx, 1, 1)) - { - boolean override = false; - if (!stripSpace.isEmpty()) - { - for (Iterator j = stripSpace.iterator(); j.hasNext(); ) - { - NameTest stripTest = (NameTest) j.next(); - if (stripTest.matches(ctx, 1, 1)) - { - override = true; - break; - } - } - } - if (!override) - { - return true; - } - } - } - } - // Check whether any ancestor specified xml:space - while (ctx != null) - { - if (ctx.getNodeType() == Node.ELEMENT_NODE) - { - Element element = (Element) ctx; - String xmlSpace = element.getAttribute("xml:space"); - if ("default".equals(xmlSpace)) - { - break; - } - else if ("preserve".equals(xmlSpace)) - { - return true; - } - else if (xmlSpace.length() > 0) - { - String msg = "Illegal value for xml:space: " + xmlSpace; - throw new TransformerConfigurationException(msg); - } - else if ("text".equals(ctx.getLocalName()) && - XSL_NS.equals(ctx.getNamespaceURI())) - { - // xsl:text implies xml:space='preserve' - return true; - } - } - ctx = ctx.getParentNode(); - } - return false; - } - - public XPathFunction resolveFunction(QName name, int arity) - { - String uri = name.getNamespaceURI(); - if (XSL_NS.equals(uri) || uri == null || uri.length() == 0) - { - String localName = name.getLocalPart(); - if ("document".equals(localName) && (arity == 1 || arity == 2)) - { - if (current == null) - { - throw new RuntimeException("current is null"); - } - return new DocumentFunction(getRootStylesheet(), current); - } - else if ("key".equals(localName) && (arity == 2)) - { - return new KeyFunction(getRootStylesheet()); - } - else if ("format-number".equals(localName) && - (arity == 2 || arity == 3)) - { - return new FormatNumberFunction(getRootStylesheet()); - } - else if ("current".equals(localName) && (arity == 0)) - { - return new CurrentFunction(getRootStylesheet()); - } - else if ("unparsed-entity-uri".equals(localName) && (arity == 1)) - { - return new UnparsedEntityUriFunction(); - } - else if ("generate-id".equals(localName) && - (arity == 1 || arity == 0)) - { - return new GenerateIdFunction(); - } - else if ("system-property".equals(localName) && (arity == 1)) - { - return new SystemPropertyFunction(); - } - else if ("element-available".equals(localName) && (arity == 1)) - { - return new ElementAvailableFunction(this); - } - else if ("function-available".equals(localName) && (arity == 1)) - { - return new FunctionAvailableFunction(this); - } - } - return null; - } - - // -- Parsing -- - - /** - * apply-templates - */ - final TemplateNode parseApplyTemplates(Node node, Node children, Node next) - throws TransformerConfigurationException, XPathExpressionException - { - NamedNodeMap attrs = node.getAttributes(); - String m = getAttribute(attrs, "mode"); - QName mode = (m == null) ? null : getQName(m); - String s = getAttribute(attrs, "select"); - if (s == null) - { - s = "child::node()"; - } - List sortKeys = parseSortKeys(children); - List withParams = parseWithParams(children); - Expr select = (Expr) xpath.compile(s); - return new ApplyTemplatesNode(null, parse(next), - select, mode, - sortKeys, withParams, false); - } - - /** - * call-template - */ - final TemplateNode parseCallTemplate(Node node, Node children, Node next) - throws TransformerConfigurationException, XPathExpressionException - { - NamedNodeMap attrs = node.getAttributes(); - String n = getRequiredAttribute(attrs, "name", node); - QName name = getQName(n); - List withParams = parseWithParams(children); - return new CallTemplateNode(null, parse(next), name, - withParams); - } - - /** - * value-of - */ - final TemplateNode parseValueOf(Node node, Node children, Node next) - throws TransformerConfigurationException, XPathExpressionException - { - NamedNodeMap attrs = node.getAttributes(); - String s = getRequiredAttribute(attrs, "select", node); - String doe = getAttribute(attrs, "disable-output-escaping"); - boolean d = "yes".equals(doe); - Expr select = (Expr) xpath.compile(s); - return new ValueOfNode(null, parse(next), select, d); - } - - /** - * for-each - */ - final TemplateNode parseForEach(Node node, Node children, Node next) - throws TransformerConfigurationException, XPathExpressionException - { - NamedNodeMap attrs = node.getAttributes(); - String s = getRequiredAttribute(attrs, "select", node); - List sortKeys = parseSortKeys(children); - Expr select = (Expr) xpath.compile(s); - return new ForEachNode(parse(children), parse(next), select, sortKeys); - } - - /** - * if - */ - final TemplateNode parseIf(Node node, Node children, Node next) - throws TransformerConfigurationException, XPathExpressionException - { - NamedNodeMap attrs = node.getAttributes(); - String t = getRequiredAttribute(attrs, "test", node); - Expr test = (Expr) xpath.compile(t); - return new IfNode(parse(children), parse(next), test); - } - - /** - * when - */ - final TemplateNode parseWhen(Node node, Node children, Node next) - throws TransformerConfigurationException, XPathExpressionException - { - NamedNodeMap attrs = node.getAttributes(); - String t = getRequiredAttribute(attrs, "test", node); - Expr test = (Expr) xpath.compile(t); - return new WhenNode(parse(children), parse(next), test); - } - - /** - * element - */ - final TemplateNode parseElement(Node node, Node children, Node next) - throws TransformerConfigurationException, XPathExpressionException - { - NamedNodeMap attrs = node.getAttributes(); - String name = getRequiredAttribute(attrs, "name", node); - String namespace = getAttribute(attrs, "namespace"); - String uas = getAttribute(attrs, "use-attribute-sets"); - TemplateNode n = parseAttributeValueTemplate(name, node); - TemplateNode ns = (namespace == null) ? null : - parseAttributeValueTemplate(namespace, node); - return new ElementNode(parse(children), parse(next), n, ns, uas, node); - } - - /** - * attribute - */ - final TemplateNode parseAttribute(Node node, Node children, Node next) - throws TransformerConfigurationException, XPathExpressionException - { - NamedNodeMap attrs = node.getAttributes(); - String name = getRequiredAttribute(attrs, "name", node); - String namespace = getAttribute(attrs, "namespace"); - TemplateNode n = parseAttributeValueTemplate(name, node); - TemplateNode ns = (namespace == null) ? null : - parseAttributeValueTemplate(namespace, node); - return new AttributeNode(parse(children), parse(next), n, ns, node); - } - - /** - * text - */ - final TemplateNode parseText(Node node, Node children, Node next) - throws TransformerConfigurationException, XPathExpressionException - { - NamedNodeMap attrs = node.getAttributes(); - String doe = getAttribute(attrs, "disable-output-escaping"); - boolean d = "yes".equals(doe); - return new TextNode(parse(children), parse(next), d); - } - - /** - * copy - */ - final TemplateNode parseCopy(Node node, Node children, Node next) - throws TransformerConfigurationException, XPathExpressionException - { - NamedNodeMap attrs = node.getAttributes(); - String uas = getAttribute(attrs, "use-attribute-sets"); - return new CopyNode(parse(children), parse(next), uas); - } - - /** - * processing-instruction - */ - final TemplateNode parseProcessingInstruction(Node node, Node children, - Node next) - throws TransformerConfigurationException, XPathExpressionException - { - NamedNodeMap attrs = node.getAttributes(); - String name = getRequiredAttribute(attrs, "name", node); - return new ProcessingInstructionNode(parse(children), - parse(next), name); - } - - /** - * number - */ - final TemplateNode parseNumber(Node node, Node children, Node next) - throws TransformerConfigurationException, XPathExpressionException - { - NamedNodeMap attrs = node.getAttributes(); - String v = getAttribute(attrs, "value"); - String ff = getAttribute(attrs, "format"); - if (ff == null) - { - ff = "1"; - } - TemplateNode format = parseAttributeValueTemplate(ff, node); - String lang = getAttribute(attrs, "lang"); - String lv = getAttribute(attrs, "letter-value"); - int letterValue = "traditional".equals(lv) ? - AbstractNumberNode.TRADITIONAL : - AbstractNumberNode.ALPHABETIC; - String gs = getAttribute(attrs, "grouping-separator"); - String gz = getAttribute(attrs, "grouping-size"); - int gz2 = (gz != null && gz.length() > 0) ? - Integer.parseInt(gz) : 1; - if (v != null && v.length() > 0) - { - Expr value = (Expr) xpath.compile(v); - return new NumberNode(parse(children), parse(next), - value, format, lang, - letterValue, gs, gz2); - } - else - { - String l = getAttribute(attrs, "level"); - int level = - "multiple".equals(l) ? NodeNumberNode.MULTIPLE : - "any".equals(l) ? NodeNumberNode.ANY : - NodeNumberNode.SINGLE; - String c = getAttribute(attrs, "count"); - String f = getAttribute(attrs, "from"); - Pattern count = null; - Pattern from = null; - if (c != null) - { - try - { - count = (Pattern) xpath.compile(c); - } - catch (ClassCastException e) - { - String msg = "invalid pattern: " + c; - throw new TransformerConfigurationException(msg); - } - } - if (f != null) - { - try - { - from = (Pattern) xpath.compile(f); - } - catch (ClassCastException e) - { - String msg = "invalid pattern: " + f; - throw new TransformerConfigurationException(msg); - } - } - return new NodeNumberNode(parse(children), parse(next), - level, count, from, - format, lang, - letterValue, gs, gz2); - } - } - - /** - * copy-of - */ - final TemplateNode parseCopyOf(Node node, Node children, Node next) - throws TransformerConfigurationException, XPathExpressionException - { - NamedNodeMap attrs = node.getAttributes(); - String s = getRequiredAttribute(attrs, "select", node); - Expr select = (Expr) xpath.compile(s); - return new CopyOfNode(parse(children), parse(next), select); - } - - /** - * message - */ - final TemplateNode parseMessage(Node node, Node children, Node next) - throws TransformerConfigurationException, XPathExpressionException - { - NamedNodeMap attrs = node.getAttributes(); - String t = getAttribute(attrs, "terminate"); - boolean terminate = "yes".equals(t); - return new MessageNode(parse(children), parse(next), terminate); - } - - /** - * Parse template-level elements. - */ - final TemplateNode parse(Node node) - throws TransformerConfigurationException - { - if (node == null) - { - return null; - } - // Hack to associate the document function with its declaring node - current = node; - Node children = node.getFirstChild(); - Node next = node.getNextSibling(); - try - { - String namespaceUri = node.getNamespaceURI(); - if (Stylesheet.XSL_NS.equals(namespaceUri) && - Node.ELEMENT_NODE == node.getNodeType()) - { - String name = node.getLocalName(); - if ("apply-templates".equals(name)) - { - return parseApplyTemplates(node, children, next); - } - else if ("call-template".equals(name)) - { - return parseCallTemplate(node, children, next); - } - else if ("value-of".equals(name)) - { - return parseValueOf(node, children, next); - } - else if ("for-each".equals(name)) - { - return parseForEach(node, children, next); - } - else if ("if".equals(name)) - { - return parseIf(node, children, next); - } - else if ("choose".equals(name)) - { - return new ChooseNode(parse(children), parse(next)); - } - else if ("when".equals(name)) - { - return parseWhen(node, children, next); - } - else if ("otherwise".equals(name)) - { - return new OtherwiseNode(parse(children), parse(next)); - } - else if ("element".equals(name)) - { - return parseElement(node, children, next); - } - else if ("attribute".equals(name)) - { - return parseAttribute(node, children, next); - } - else if ("text".equals(name)) - { - return parseText(node, children, next); - } - else if ("copy".equals(name)) - { - return parseCopy(node, children, next); - } - else if ("processing-instruction".equals(name)) - { - return parseProcessingInstruction(node, children, next); - } - else if ("comment".equals(name)) - { - return new CommentNode(parse(children), parse(next)); - } - else if ("number".equals(name)) - { - return parseNumber(node, children, next); - } - else if ("param".equals(name) || - "variable".equals(name)) - { - boolean global = "variable".equals(name); - NamedNodeMap attrs = node.getAttributes(); - TemplateNode content = parse(children); - String paramName = getRequiredAttribute(attrs, "name", node); - String select = getAttribute(attrs, "select"); - if (select != null) - { - if (content != null) - { - String msg = "parameter '" + paramName + - "' has both select and content"; - DOMSourceLocator l = new DOMSourceLocator(node); - throw new TransformerConfigurationException(msg, l); - } - Expr expr = (Expr) xpath.compile(select); - return new ParameterNode(null, parse(next), - paramName, expr, global); - } - else - { - return new ParameterNode(content, parse(next), - paramName, null, global); - } - } - else if ("copy-of".equals(name)) - { - return parseCopyOf(node, children, next); - } - else if ("message".equals(name)) - { - return parseMessage(node, children, next); - } - else if ("apply-imports".equals(name)) - { - return new ApplyImportsNode(parse(children), parse(next)); - } - else - { - // xsl:fallback - // Pass over any other XSLT nodes - return parse(next); - } - } - String prefix = node.getPrefix(); - if (extensionElementPrefixes.contains(prefix)) - { - // Pass over extension elements - return parse(next); - } - switch (node.getNodeType()) - { - case Node.TEXT_NODE: - // Determine whether to strip whitespace - Text text = (Text) node; - if (!isPreserved(text)) - { - // Strip - text.getParentNode().removeChild(text); - return parse(next); - } - break; - case Node.COMMENT_NODE: - // Ignore comments - return parse(next); - case Node.ELEMENT_NODE: - // Check for attribute value templates and use-attribute-sets - NamedNodeMap attrs = node.getAttributes(); - boolean convert = false; - String useAttributeSets = null; - int len = attrs.getLength(); - for (int i = 0; i < len; i++) - { - Node attr = attrs.item(i); - String value = attr.getNodeValue(); - if (Stylesheet.XSL_NS.equals(attr.getNamespaceURI()) && - "use-attribute-sets".equals(attr.getLocalName())) - { - useAttributeSets = value; - convert = true; - break; - } - int start = value.indexOf('{'); - int end = value.indexOf('}'); - if (start != -1 || end != -1) - { - convert = true; - break; - } - } - if (convert) - { - // Create an element-producing template node instead - // with appropriate attribute-producing child template nodes - TemplateNode child = parse(children); - for (int i = 0; i < len; i++) - { - Node attr = attrs.item(i); - String ans = attr.getNamespaceURI(); - String aname = attr.getNodeName(); - if (Stylesheet.XSL_NS.equals(ans) && - "use-attribute-sets".equals(attr.getLocalName())) - { - continue; - } - String value = attr.getNodeValue(); - TemplateNode grandchild = - parseAttributeValueTemplate(value, node); - TemplateNode n = - parseAttributeValueTemplate(aname, node); - TemplateNode ns = (ans == null) ? null : - parseAttributeValueTemplate(ans, node); - child = new AttributeNode(grandchild, child, n, ns, attr); - } - String ename = node.getNodeName(); - TemplateNode n = parseAttributeValueTemplate(ename, node); - TemplateNode ns = (namespaceUri == null) ? null : - parseAttributeValueTemplate(namespaceUri, node); - return new ElementNode(child, parse(next), - n, ns, useAttributeSets, - node); - } - // Otherwise fall through - break; - } - } - catch (XPathExpressionException e) - { - DOMSourceLocator l = new DOMSourceLocator(node); - throw new TransformerConfigurationException(e.getMessage(), l, e); - } - return new LiteralNode(parse(children), parse(next), node); - } - - final List parseSortKeys(Node node) - throws TransformerConfigurationException, XPathExpressionException - { - List ret = new LinkedList(); - while (node != null) - { - String namespaceUri = node.getNamespaceURI(); - if (Stylesheet.XSL_NS.equals(namespaceUri) && - Node.ELEMENT_NODE == node.getNodeType() && - "sort".equals(node.getLocalName())) - { - NamedNodeMap attrs = node.getAttributes(); - String s = getAttribute(attrs, "select"); - if (s == null) - { - s = "."; - } - Expr select = (Expr) xpath.compile(s); - String l = getAttribute(attrs, "lang"); - TemplateNode lang = (l == null) ? null : - parseAttributeValueTemplate(l, node); - String dt = getAttribute(attrs, "data-type"); - TemplateNode dataType = (dt == null) ? null : - parseAttributeValueTemplate(dt, node); - String o = getAttribute(attrs, "order"); - TemplateNode order = (o == null) ? null : - parseAttributeValueTemplate(o, node); - String co = getAttribute(attrs, "case-order"); - TemplateNode caseOrder = (co == null) ? null : - parseAttributeValueTemplate(co, node); - ret.add(new SortKey(select, lang, dataType, order, caseOrder)); - } - node = node.getNextSibling(); - } - return ret.isEmpty() ? null : ret; - } - - final List parseWithParams(Node node) - throws TransformerConfigurationException, XPathExpressionException - { - List ret = new LinkedList(); - while (node != null) - { - String namespaceUri = node.getNamespaceURI(); - if (Stylesheet.XSL_NS.equals(namespaceUri) && - Node.ELEMENT_NODE == node.getNodeType() && - "with-param".equals(node.getLocalName())) - { - NamedNodeMap attrs = node.getAttributes(); - TemplateNode content = parse(node.getFirstChild()); - String name = getRequiredAttribute(attrs, "name", node); - String select = getAttribute(attrs, "select"); - if (select != null) - { - if (content != null) - { - String msg = "parameter '" + name + - "' has both select and content"; - DOMSourceLocator l = new DOMSourceLocator(node); - throw new TransformerConfigurationException(msg, l); - } - Expr expr = (Expr) xpath.compile(select); - ret.add(new WithParam(name, expr)); - } - else - { - ret.add(new WithParam(name, content)); - } - } - node = node.getNextSibling(); - } - return ret.isEmpty() ? null : ret; - } - - /** - * Created element nodes have a copy of the namespace nodes in the - * stylesheet, except the XSLT namespace, extension namespaces, and - * exclude-result-prefixes. - */ - final void addNamespaceNodes(Node source, Node target, Document doc, - Collection elementExcludeResultPrefixes) - { - NamedNodeMap attrs = source.getAttributes(); - if (attrs != null) - { - int len = attrs.getLength(); - for (int i = 0; i < len; i++) - { - Node attr = attrs.item(i); - String uri = attr.getNamespaceURI(); - if (uri == XMLConstants.XMLNS_ATTRIBUTE_NS_URI) - { - String prefix = attr.getLocalName(); - if (XMLConstants.XMLNS_ATTRIBUTE.equals(prefix)) - { - prefix = "#default"; - } - String ns = attr.getNodeValue(); - // Should the namespace be excluded? - if (XSL_NS.equals(ns) || - extensionElementPrefixes.contains(prefix) || - elementExcludeResultPrefixes.contains(prefix) || - excludeResultPrefixes.contains(prefix)) - { - continue; - } - // Is the namespace already defined on the target? - if (prefix == "#default") - { - prefix = null; - } - if (target.lookupNamespaceURI(prefix) != null) - { - continue; - } - attr = attr.cloneNode(true); - attr = doc.adoptNode(attr); - target.getAttributes().setNamedItemNS(attr); - } - } - } - Node parent = source.getParentNode(); - if (parent != null) - { - addNamespaceNodes(parent, target, doc, elementExcludeResultPrefixes); - } - } - - static final String getAttribute(NamedNodeMap attrs, String name) - { - Node attr = attrs.getNamedItem(name); - if (attr == null) - { - return null; - } - String ret = attr.getNodeValue(); - if (ret.length() == 0) - { - return null; - } - return ret; - } - - static final String getRequiredAttribute(NamedNodeMap attrs, String name, - Node source) - throws TransformerConfigurationException - { - String value = getAttribute(attrs, name); - if (value == null || value.length() == 0) - { - String msg = - name + " attribute is required on " + source.getNodeName(); - DOMSourceLocator l = new DOMSourceLocator(source); - throw new TransformerConfigurationException(msg, l); - } - return value; - } - - // Handle user data changes when nodes are cloned etc - - public void handle(short op, String key, Object data, Node src, Node dst) - { - dst.setUserData(key, data, this); - } - -} - |