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 net.sourceforge.phpeclipse.IPreferenceConstants;
17 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
18 import net.sourceforge.phpeclipse.phpeditor.php.PHPConstant;
19 import net.sourceforge.phpeclipse.phpeditor.php.PHPElement;
20 import net.sourceforge.phpeclipse.phpeditor.php.PHPFunction;
21 import net.sourceforge.phpeclipse.phpeditor.php.PHPKeyword;
22 import net.sourceforge.phpeclipse.phpeditor.php.PHPType;
23 import org.apache.xml.serialize.OutputFormat;
24 import org.apache.xml.serialize.Serializer;
25 import org.apache.xml.serialize.SerializerFactory;
26 import org.eclipse.core.runtime.CoreException;
27 import org.eclipse.core.runtime.IPath;
28 import org.eclipse.jface.preference.IPreferenceStore;
29 import org.w3c.dom.Attr;
30 import org.w3c.dom.Document;
31 import org.w3c.dom.NamedNodeMap;
32 import org.w3c.dom.Node;
33 import org.w3c.dom.NodeList;
34 import org.w3c.dom.Text;
35 import org.xml.sax.InputSource;
36 import org.xml.sax.SAXException;
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 USAGE_ATTR = "usage"; //$NON-NLS-1$
53 private static final String TOKENVAL_ATTR = "tokenval"; //$NON-NLS-1$
54 private static IPreferenceStore store;
55 private static boolean hasXMLFileBeenRead = true;
57 //The following variable is used to hold the syntax from
58 //the suers custom file - if that file should be changed,
59 //then all entries in this variable should be removed from
60 //the word list, reread from the file and then reinserted.
61 private static Vector userdefsyntaxdata;
63 private static Vector syntaxdata;
65 public PHPSyntaxRdr() {
66 syntaxdata = new Vector();
67 store = PHPeclipsePlugin.getDefault().getPreferenceStore();
70 public static void readInSyntax() {
72 hasXMLFileBeenRead = true;
73 /*Attempt to read the syntax file from the metadata
74 * if this does not work, create metadata from default*/
75 File syntaxFile = getSyntaxFile();
76 if (syntaxFile.exists()) {
77 readFromFile(syntaxFile);
79 readFromStream(PHPSyntaxRdr.class.getResourceAsStream(PHPSYNTAX_FILE));
80 saveToFile(syntaxFile);
82 /*Read the user-defined syntax file if it exists*/
83 //String buffer = new String(store.getString(PHPeclipsePlugin.PHP_USERDEF_XMLFILE));
85 store = PHPeclipsePlugin.getDefault().getPreferenceStore();
86 String buffer = new String(store.getString(IPreferenceConstants.PHP_USERDEF_XMLFILE));
87 if (!buffer.equals("") || buffer != null) {
90 } catch (CoreException ce) {
95 public static void readFromFile(String filename) {
97 readFromFile(new File(filename));
98 } catch (CoreException e) {
102 public static void readFromFile(File file) throws CoreException {
103 InputStream stream = null;
105 stream = new FileInputStream(file);
106 readFromStream(stream);
107 } catch (IOException e) {
108 throwReadException(e);
111 if (stream != null) {
114 } catch (IOException e) {
118 public static void readFromStream(InputStream stream) throws CoreException {
120 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
121 DocumentBuilder parser = factory.newDocumentBuilder();
122 Document document = parser.parse(new InputSource(stream));
123 //Read in the Standard PHPSyntax "stuff"
124 NodeList elements = document.getElementsByTagName(PHPSYNTAX_TAG);
126 int count = elements.getLength();
127 for (int i = 0; i != count; i++) {
128 Node node = elements.item(i);
129 NamedNodeMap attributes = node.getAttributes();
131 if (attributes == null)
134 String Keyword = getAttributeValue(attributes, KEYWORD_ATTR);
135 String Type = getAttributeValue(attributes, TYPE_ATTR);
136 String Function = getAttributeValue(attributes, FN_ATTR);
137 String Constant = getAttributeValue(attributes, CONSTANT_ATTR);
138 String usage = getAttributeValue(attributes, USAGE_ATTR);
139 String Tokenval = getAttributeValue(attributes, TOKENVAL_ATTR);
141 StringBuffer buffer= new StringBuffer();
142 NodeList children= node.getChildNodes();
143 for (int j= 0; j != children.getLength(); j++) {
144 String value= children.item(j).getNodeValue();
146 buffer.append(value);
148 String description = buffer.toString().trim();
150 if (Keyword == null && Type == null && Function == null && Constant == null) {
151 //ignore as it is not a valid phpsyntax tag
153 if (Keyword != null) {
154 syntaxdata.addElement(new PHPKeyword(Keyword, usage, Tokenval));
155 } else if (Type != null) {
156 syntaxdata.addElement(new PHPType(Type, usage));
157 } else if (Function != null) {
158 syntaxdata.addElement(new PHPFunction(Function, usage, description));
159 } else if (Constant != null) {
160 syntaxdata.addElement(new PHPConstant(Constant, usage));
164 } catch (ParserConfigurationException e) {
165 throwReadException(e);
166 } catch (IOException e) {
167 throwReadException(e);
168 } catch (SAXException e) {
169 throwReadException(e);
173 public static Vector getsyntaxdata() {
174 return (Vector) syntaxdata.clone();
177 public static void replaceUserDefFile() {
178 /*Replace the user-defined syntax file if it exists*/
179 String buffer = new String(store.getString(IPreferenceConstants.PHP_USERDEF_XMLFILE));
180 if (!buffer.equals("") || buffer == null) {
181 readFromFile(buffer);
185 public static Vector getUserDefinitions() {
186 return (Vector) userdefsyntaxdata.clone();
189 private static File getSyntaxFile() {
190 IPath path = PHPeclipsePlugin.getDefault().getStateLocation();
191 path = path.append(PHPSYNTAX_FILE);
192 return path.toFile();
195 private static String getAttributeValue(NamedNodeMap attributes, String name) {
196 Node node = attributes.getNamedItem(name);
197 return node == null ? null : node.getNodeValue();
200 public static void saveToFile(File file) throws CoreException {
201 OutputStream stream = null;
203 stream = new FileOutputStream(file);
204 saveToStream(stream);
205 } catch (IOException e) {
206 throwWriteException(e);
211 } catch (IOException e) {
216 public static void saveToStream(OutputStream stream) throws CoreException {
218 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
219 DocumentBuilder builder = factory.newDocumentBuilder();
220 Document document = builder.newDocument();
221 Node root = document.createElement("PHPStandardSyntax"); // $NON-NLS-1$ //$NON-NLS-1$
222 document.appendChild(root);
223 for (int i = 0; i != syntaxdata.size(); i++) {
224 Object bufferobj = (Object) syntaxdata.get(i);
226 Node node = document.createElement(PHPSYNTAX_TAG); // $NON-NLS-1$ //$NON-NLS-1$
227 root.appendChild(node);
228 NamedNodeMap attributes = node.getAttributes();
229 if (bufferobj instanceof PHPType)
230 name = document.createAttribute(TYPE_ATTR);
231 if (bufferobj instanceof PHPKeyword)
232 name = document.createAttribute(KEYWORD_ATTR);
233 if (bufferobj instanceof PHPFunction)
234 name = document.createAttribute(FN_ATTR);
235 if (bufferobj instanceof PHPConstant)
236 name = document.createAttribute(CONSTANT_ATTR);
237 name.setValue(((PHPElement) bufferobj).getName());
238 attributes.setNamedItem(name);
239 Attr description = document.createAttribute(USAGE_ATTR);
240 description.setValue(((PHPElement) bufferobj).getUsage());
241 attributes.setNamedItem(description);
242 if (bufferobj instanceof PHPKeyword) {
243 Attr tokenval = document.createAttribute(TOKENVAL_ATTR);
244 tokenval.setValue((new Integer(((PHPKeyword) bufferobj).gettokenval())).toString());
245 attributes.setNamedItem(tokenval);
247 if (bufferobj instanceof PHPFunction) {
248 // Attr usage = document.createAttribute(USAGE_ATTR);
249 Text usage = document.createTextNode(((PHPFunction) bufferobj).getDescription());
250 node.appendChild(usage);
251 // usage.setValue(((PHPFunction) bufferobj).getUsage());
252 // attributes.setNamedItem(usage);
255 OutputFormat format = new OutputFormat();
256 format.setPreserveSpace(true);
258 Serializer serializer = SerializerFactory.getSerializerFactory("xml").makeSerializer(stream, format);
259 serializer.asDOMSerializer().serialize(document);
260 } catch (UnsupportedEncodingException e) {
261 } catch (IOException e) {
263 // Serializer serializer = SerializerFactory.getSerializer().makeSerializer(stream, format); //$NON-NLS-1$
264 } catch (ParserConfigurationException e) {
265 throwWriteException(e);
266 // } catch (IOException e) {
267 // throwWriteException(e);
271 private static void throwReadException(Throwable t) throws CoreException {
272 PHPeclipsePlugin.log(t);
273 // IStatus status= new JavaUIStatus(JavaStatusConstants.TEMPLATE_IO_EXCEPTION,
274 // TemplateMessages.getString("TemplateSet.error.read"), t); //$NON-NLS-1$
275 // throw new JavaUIException(status);
278 private static void throwWriteException(Throwable t) throws CoreException {
279 PHPeclipsePlugin.log(t);
280 // IStatus status= new JavaUIStatus(JavaStatusConstants.TEMPLATE_IO_EXCEPTION,
281 // TemplateMessages.getString("TemplateSet.error.write"), t); //$NON-NLS-1$
282 // throw new JavaUIException(status);