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;
24 import org.apache.xml.serialize.OutputFormat;
25 import org.apache.xml.serialize.Serializer;
26 import org.apache.xml.serialize.SerializerFactory;
27 import org.eclipse.core.runtime.CoreException;
28 import org.eclipse.core.runtime.IPath;
29 import org.eclipse.jface.preference.IPreferenceStore;
30 import org.w3c.dom.Attr;
31 import org.w3c.dom.Document;
32 import org.w3c.dom.NamedNodeMap;
33 import org.w3c.dom.Node;
34 import org.w3c.dom.NodeList;
35 import org.w3c.dom.Text;
36 import org.xml.sax.InputSource;
37 import org.xml.sax.SAXException;
40 * <code>PHPSyntaxRdr</code> reads PHP specifics from an XML file (eg. keywords)
43 public class PHPSyntaxRdr {
44 private static final String PHPDEFAULT_FILE = "default-phpsyntax.xml"; //$NON-NLS-1$
45 private static final String PHPSYNTAX_FILE = "phpsyntax.xml"; //$NON-NLS-1$
46 private static final String USERSYNTAX_FILE = "usersyntax.xml"; //$NON-NLS-1$
47 private static final String USERDEFAULT_FILE = "default-usersyntax.xml"; //$NON-NLS-1$
48 private static final String PHPSYNTAX_TAG = "phpsyntax"; //$NON-NLS-1$
49 private static final String KEYWORD_ATTR = "keyword"; //$NON-NLS-1$
50 private static final String TYPE_ATTR = "type"; //$NON-NLS-1$
51 private static final String CONSTANT_ATTR = "constant"; //$NON-NLS-1$
52 private static final String FN_ATTR = "function"; //$NON-NLS-1$
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 usage = getAttributeValue(attributes, USAGE_ATTR);
140 String Tokenval = getAttributeValue(attributes, TOKENVAL_ATTR);
142 StringBuffer buffer= new StringBuffer();
143 NodeList children= node.getChildNodes();
144 for (int j= 0; j != children.getLength(); j++) {
145 String value= children.item(j).getNodeValue();
147 buffer.append(value);
149 String description = buffer.toString().trim();
151 if (Keyword == null && Type == null && Function == null && Constant == null) {
152 //ignore as it is not a valid phpsyntax tag
154 if (Keyword != null) {
155 syntaxdata.addElement(new PHPKeyword(Keyword, usage, Tokenval));
156 } else if (Type != null) {
157 syntaxdata.addElement(new PHPType(Type, usage));
158 } else if (Function != null) {
159 syntaxdata.addElement(new PHPFunction(Function, usage, description));
160 } else if (Constant != null) {
161 syntaxdata.addElement(new PHPConstant(Constant, usage));
165 } catch (ParserConfigurationException e) {
166 throwReadException(e);
167 } catch (IOException e) {
168 throwReadException(e);
169 } catch (SAXException e) {
170 throwReadException(e);
174 public static Vector getsyntaxdata() {
175 return (Vector) syntaxdata.clone();
178 public static void replaceUserDefFile() {
179 /*Replace the user-defined syntax file if it exists*/
180 String buffer = new String(store.getString(IPreferenceConstants.PHP_USERDEF_XMLFILE));
181 if (!buffer.equals("") || buffer == null) {
182 readFromFile(buffer);
186 public static Vector getUserDefinitions() {
187 return (Vector) userdefsyntaxdata.clone();
190 private static File getSyntaxFile() {
191 IPath path = PHPeclipsePlugin.getDefault().getStateLocation();
192 path = path.append(PHPSYNTAX_FILE);
193 return path.toFile();
196 private static String getAttributeValue(NamedNodeMap attributes, String name) {
197 Node node = attributes.getNamedItem(name);
198 return node == null ? null : node.getNodeValue();
201 public static void saveToFile(File file) throws CoreException {
202 OutputStream stream = null;
204 stream = new FileOutputStream(file);
205 saveToStream(stream);
206 } catch (IOException e) {
207 throwWriteException(e);
212 } catch (IOException e) {
217 public static void saveToStream(OutputStream stream) throws CoreException {
219 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
220 DocumentBuilder builder = factory.newDocumentBuilder();
221 Document document = builder.newDocument();
222 Node root = document.createElement("PHPStandardSyntax"); // $NON-NLS-1$ //$NON-NLS-1$
223 document.appendChild(root);
224 for (int i = 0; i != syntaxdata.size(); i++) {
225 Object bufferobj = (Object) syntaxdata.get(i);
227 Node node = document.createElement(PHPSYNTAX_TAG); // $NON-NLS-1$ //$NON-NLS-1$
228 root.appendChild(node);
229 NamedNodeMap attributes = node.getAttributes();
230 if (bufferobj instanceof PHPType)
231 name = document.createAttribute(TYPE_ATTR);
232 if (bufferobj instanceof PHPKeyword)
233 name = document.createAttribute(KEYWORD_ATTR);
234 if (bufferobj instanceof PHPFunction)
235 name = document.createAttribute(FN_ATTR);
236 if (bufferobj instanceof PHPConstant)
237 name = document.createAttribute(CONSTANT_ATTR);
238 name.setValue(((PHPElement) bufferobj).getName());
239 attributes.setNamedItem(name);
240 Attr description = document.createAttribute(USAGE_ATTR);
241 description.setValue(((PHPElement) bufferobj).getUsage());
242 attributes.setNamedItem(description);
243 if (bufferobj instanceof PHPKeyword) {
244 Attr tokenval = document.createAttribute(TOKENVAL_ATTR);
245 tokenval.setValue((new Integer(((PHPKeyword) bufferobj).gettokenval())).toString());
246 attributes.setNamedItem(tokenval);
248 if (bufferobj instanceof PHPFunction) {
249 // Attr usage = document.createAttribute(USAGE_ATTR);
250 Text usage = document.createTextNode(((PHPFunction) bufferobj).getDescription());
251 node.appendChild(usage);
252 // usage.setValue(((PHPFunction) bufferobj).getUsage());
253 // attributes.setNamedItem(usage);
256 OutputFormat format = new OutputFormat();
257 format.setPreserveSpace(true);
259 Serializer serializer = SerializerFactory.getSerializerFactory("xml").makeSerializer(stream, format);
260 serializer.asDOMSerializer().serialize(document);
261 } catch (UnsupportedEncodingException e) {
262 } catch (IOException e) {
264 // Serializer serializer = SerializerFactory.getSerializer().makeSerializer(stream, format); //$NON-NLS-1$
265 } catch (ParserConfigurationException e) {
266 throwWriteException(e);
267 // } catch (IOException e) {
268 // throwWriteException(e);
272 private static void throwReadException(Throwable t) throws CoreException {
273 PHPeclipsePlugin.log(t);
274 // IStatus status= new JavaUIStatus(JavaStatusConstants.TEMPLATE_IO_EXCEPTION,
275 // TemplateMessages.getString("TemplateSet.error.read"), t); //$NON-NLS-1$
276 // throw new JavaUIException(status);
279 private static void throwWriteException(Throwable t) throws CoreException {
280 PHPeclipsePlugin.log(t);
281 // IStatus status= new JavaUIStatus(JavaStatusConstants.TEMPLATE_IO_EXCEPTION,
282 // TemplateMessages.getString("TemplateSet.error.write"), t); //$NON-NLS-1$
283 // throw new JavaUIException(status);