1 package net.sourceforge.phpeclipse.phpeditor;
4 import java.io.FileInputStream;
5 import java.io.FileOutputStream;
6 import java.io.IOException;
7 import java.io.InputStream;
8 import java.io.OutputStream;
9 import java.io.UnsupportedEncodingException;
10 import java.util.Vector;
12 import javax.xml.parsers.DocumentBuilder;
13 import javax.xml.parsers.DocumentBuilderFactory;
14 import javax.xml.parsers.ParserConfigurationException;
16 import org.apache.xml.serialize.OutputFormat;
17 import org.apache.xml.serialize.Serializer;
18 import org.apache.xml.serialize.SerializerFactory;
19 import org.eclipse.core.runtime.CoreException;
20 import org.eclipse.core.runtime.IPath;
21 import org.eclipse.jface.preference.IPreferenceStore;
22 import org.w3c.dom.Attr;
23 import org.w3c.dom.Document;
24 import org.w3c.dom.NamedNodeMap;
25 import org.w3c.dom.Node;
26 import org.w3c.dom.NodeList;
27 import org.xml.sax.InputSource;
28 import org.xml.sax.SAXException;
30 import net.sourceforge.phpeclipse.IPreferenceConstants;
31 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
32 import net.sourceforge.phpeclipse.phpeditor.php.PHPConstant;
33 import net.sourceforge.phpeclipse.phpeditor.php.PHPElement;
34 import net.sourceforge.phpeclipse.phpeditor.php.PHPFunction;
35 import net.sourceforge.phpeclipse.phpeditor.php.PHPKeyword;
36 import net.sourceforge.phpeclipse.phpeditor.php.PHPType;
39 * <code>PHPSyntaxRdr</code> reads PHP specifics from an XML file (eg. keywords)
42 public class PHPSyntaxRdr {
43 private static final String PHPDEFAULT_FILE = "default-phpsyntax.xml"; //$NON-NLS-1$
44 private static final String PHPSYNTAX_FILE = "phpsyntax.xml"; //$NON-NLS-1$
45 private static final String USERSYNTAX_FILE = "usersyntax.xml"; //$NON-NLS-1$
46 private static final String USERDEFAULT_FILE = "default-usersyntax.xml"; //$NON-NLS-1$
47 private static final String PHPSYNTAX_TAG = "phpsyntax"; //$NON-NLS-1$
48 private static final String KEYWORD_ATTR = "keyword"; //$NON-NLS-1$
49 private static final String TYPE_ATTR = "type"; //$NON-NLS-1$
50 private static final String CONSTANT_ATTR = "constant"; //$NON-NLS-1$
51 private static final String FN_ATTR = "function"; //$NON-NLS-1$
52 private static final String DESCRIPTION = "description"; //$NON-NLS-1$
53 private static final String USAGE_ATTR = "usage"; //$NON-NLS-1$
54 private static final String TOKENVAL_ATTR = "tokenval"; //$NON-NLS-1$
55 private static IPreferenceStore store;
56 private static boolean hasXMLFileBeenRead = true;
58 //The following variable is used to hold the syntax from
59 //the suers custom file - if that file should be changed,
60 //then all entries in this variable should be removed from
61 //the word list, reread from the file and then reinserted.
62 private static Vector userdefsyntaxdata;
64 private static Vector syntaxdata;
66 public PHPSyntaxRdr() {
67 syntaxdata = new Vector();
68 store = PHPeclipsePlugin.getDefault().getPreferenceStore();
71 public static void readInSyntax() {
73 hasXMLFileBeenRead = true;
74 /*Attempt to read the syntax file from the metadata
75 * if this does not work, create metadata from default*/
76 File syntaxFile = getSyntaxFile();
77 if (syntaxFile.exists()) {
78 readFromFile(syntaxFile);
80 readFromStream(PHPSyntaxRdr.class.getResourceAsStream(PHPSYNTAX_FILE));
81 saveToFile(syntaxFile);
83 /*Read the user-defined syntax file if it exists*/
84 //String buffer = new String(store.getString(PHPeclipsePlugin.PHP_USERDEF_XMLFILE));
86 store = PHPeclipsePlugin.getDefault().getPreferenceStore();
87 String buffer = new String(store.getString(IPreferenceConstants.PHP_USERDEF_XMLFILE));
88 if (!buffer.equals("") || buffer != null) {
91 } catch (CoreException ce) {
96 public static void readFromFile(String filename) {
98 readFromFile(new File(filename));
99 } catch (CoreException e) {
103 public static void readFromFile(File file) throws CoreException {
104 InputStream stream = null;
106 stream = new FileInputStream(file);
107 readFromStream(stream);
108 } catch (IOException e) {
109 throwReadException(e);
112 if (stream != null) {
115 } catch (IOException e) {
119 public static void readFromStream(InputStream stream) throws CoreException {
121 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
122 DocumentBuilder parser = factory.newDocumentBuilder();
123 Document document = parser.parse(new InputSource(stream));
124 //Read in the Standard PHPSyntax "stuff"
125 NodeList elements = document.getElementsByTagName(PHPSYNTAX_TAG);
127 int count = elements.getLength();
128 for (int i = 0; i != count; i++) {
129 Node node = elements.item(i);
130 NamedNodeMap attributes = node.getAttributes();
132 if (attributes == null)
135 String Keyword = getAttributeValue(attributes, KEYWORD_ATTR);
136 String Type = getAttributeValue(attributes, TYPE_ATTR);
137 String Function = getAttributeValue(attributes, FN_ATTR);
138 String Constant = getAttributeValue(attributes, CONSTANT_ATTR);
139 String Description = getAttributeValue(attributes, DESCRIPTION);
140 String Usage = getAttributeValue(attributes, USAGE_ATTR);
141 String Tokenval = getAttributeValue(attributes, TOKENVAL_ATTR);
143 if (Keyword == null && Type == null && Function == null && Constant == null) {
144 //ignore as it is not a valid phpsyntax tag
146 if (Keyword != null) {
147 syntaxdata.addElement(new PHPKeyword(Keyword, Description, Tokenval));
148 } else if (Type != null) {
149 syntaxdata.addElement(new PHPType(Type, Description));
150 } else if (Function != null) {
151 syntaxdata.addElement(new PHPFunction(Function, Description, Usage));
152 } else if (Constant != null) {
153 syntaxdata.addElement(new PHPConstant(Constant, Description));
157 } catch (ParserConfigurationException e) {
158 throwReadException(e);
159 } catch (IOException e) {
160 throwReadException(e);
161 } catch (SAXException e) {
162 throwReadException(e);
166 public static Vector getsyntaxdata() {
167 return (Vector) syntaxdata.clone();
170 public static void replaceUserDefFile() {
171 /*Replace the user-defined syntax file if it exists*/
172 String buffer = new String(store.getString(IPreferenceConstants.PHP_USERDEF_XMLFILE));
173 if (!buffer.equals("") || buffer == null) {
174 readFromFile(buffer);
178 public static Vector getUserDefinitions() {
179 return (Vector) userdefsyntaxdata.clone();
182 private static File getSyntaxFile() {
183 IPath path = PHPeclipsePlugin.getDefault().getStateLocation();
184 path = path.append(PHPSYNTAX_FILE);
185 return path.toFile();
188 private static String getAttributeValue(NamedNodeMap attributes, String name) {
189 Node node = attributes.getNamedItem(name);
190 return node == null ? null : node.getNodeValue();
193 public static void saveToFile(File file) throws CoreException {
194 OutputStream stream = null;
196 stream = new FileOutputStream(file);
197 saveToStream(stream);
198 } catch (IOException e) {
199 throwWriteException(e);
204 } catch (IOException e) {
209 public static void saveToStream(OutputStream stream) throws CoreException {
211 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
212 DocumentBuilder builder = factory.newDocumentBuilder();
213 Document document = builder.newDocument();
214 Node root = document.createElement("PHPStandardSyntax"); // $NON-NLS-1$ //$NON-NLS-1$
215 document.appendChild(root);
216 for (int i = 0; i != syntaxdata.size(); i++) {
217 Object bufferobj = (Object) syntaxdata.get(i);
219 Node node = document.createElement(PHPSYNTAX_TAG); // $NON-NLS-1$ //$NON-NLS-1$
220 root.appendChild(node);
221 NamedNodeMap attributes = node.getAttributes();
222 if (bufferobj instanceof PHPType)
223 name = document.createAttribute(TYPE_ATTR);
224 if (bufferobj instanceof PHPKeyword)
225 name = document.createAttribute(KEYWORD_ATTR);
226 if (bufferobj instanceof PHPFunction)
227 name = document.createAttribute(FN_ATTR);
228 if (bufferobj instanceof PHPConstant)
229 name = document.createAttribute(CONSTANT_ATTR);
230 name.setValue(((PHPElement) bufferobj).getName());
231 attributes.setNamedItem(name);
232 Attr description = document.createAttribute(DESCRIPTION);
233 description.setValue(((PHPElement) bufferobj).getDescription());
234 attributes.setNamedItem(description);
235 if (bufferobj instanceof PHPKeyword) {
236 Attr tokenval = document.createAttribute(TOKENVAL_ATTR);
237 tokenval.setValue((new Integer(((PHPKeyword) bufferobj).gettokenval())).toString());
238 attributes.setNamedItem(tokenval);
240 if (bufferobj instanceof PHPFunction) {
241 Attr usage = document.createAttribute(USAGE_ATTR);
242 usage.setValue(((PHPFunction) bufferobj).getUsage());
243 attributes.setNamedItem(usage);
246 OutputFormat format = new OutputFormat();
247 format.setPreserveSpace(true);
249 Serializer serializer = SerializerFactory.getSerializerFactory("xml").makeSerializer(stream, format);
250 serializer.asDOMSerializer().serialize(document);
251 } catch (UnsupportedEncodingException e) {
252 } catch (IOException e) {
254 // Serializer serializer = SerializerFactory.getSerializer().makeSerializer(stream, format); //$NON-NLS-1$
255 } catch (ParserConfigurationException e) {
256 throwWriteException(e);
257 // } catch (IOException e) {
258 // throwWriteException(e);
262 private static void throwReadException(Throwable t) throws CoreException {
263 PHPeclipsePlugin.log(t);
264 // IStatus status= new JavaUIStatus(JavaStatusConstants.TEMPLATE_IO_EXCEPTION,
265 // TemplateMessages.getString("TemplateSet.error.read"), t); //$NON-NLS-1$
266 // throw new JavaUIException(status);
269 private static void throwWriteException(Throwable t) throws CoreException {
270 PHPeclipsePlugin.log(t);
271 // IStatus status= new JavaUIStatus(JavaStatusConstants.TEMPLATE_IO_EXCEPTION,
272 // TemplateMessages.getString("TemplateSet.error.write"), t); //$NON-NLS-1$
273 // throw new JavaUIException(status);