package net.sourceforge.phpeclipse.phpeditor;
import java.io.IOException;
import java.io.InputStream;
import net.sourceforge.phpeclipse.PHPeclipsePlugin;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.text.source.ISourceViewer;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IFileEditorInput;
import org.eclipse.ui.editors.text.TextEditor;
import test.PHPParserManager;
import test.PHPParserSuperclass;
public class PHPSyntaxParserThread extends Thread {
private static String[] EXTENSIONS = { ".php", ".php3", ".php4", ".inc", ".phtml" };
private String text = "";
private String previousText = "";
private boolean stopValidation = false;
private boolean validationTerminated = false;
private boolean isActive = false;
private TextEditor fTextEditor;
private ISourceViewer fSourceViewer;
private int previousHashCode = 0;
// Defaults
private int validationInterval = 2000; //millis
private int waitForTermination = 400; // millis
private int maxErrorsShown = 10;
public PHPSyntaxParserThread(
TextEditor textEditor,
ISourceViewer viewer) {
super();
fTextEditor = textEditor;
fSourceViewer = viewer;
}
public void setText(String text) {
if (!isActive)
this.text = text;
}
public void setText(String text, boolean forceUpdate) {
if (!isActive) {
this.text = text;
}
if (forceUpdate) {
this.previousText = "";
this.previousHashCode = 0;
}
}
public String getText() {
return text;
}
public void setInterval(int millis) {
this.validationInterval = millis;
}
public int getInterval() {
return validationInterval;
}
public void setErrorsShown(int number) {
this.maxErrorsShown = number;
}
public int getErrorsShown() {
return maxErrorsShown;
}
public void dispose() {
this.stopValidation = true;
if (validationTerminated == false) {
try {
Thread.sleep(waitForTermination);
} catch (Exception e) {
}
}
}
public void run() {
while (stopValidation == false) {
try {
this.isActive = true;
boolean ret = this.validateSyntax();
this.previousText = this.text;
this.isActive = false;
Thread.sleep(validationInterval);
} catch (Exception e) {
e.printStackTrace();
}
}
this.validationTerminated = true;
}
public boolean validateSyntax() {
boolean phpFlag = false;
try {
IFile fileToParse = getPHPFile(fTextEditor.getEditorInput());
if (fileToParse == null) {
// should never happen
System.err.println("Error : no file in the editor");
// should throw an exception
return false;
}
String name = fileToParse.getName();
for (int i = 0; i<EXTENSIONS.length; i++) {
if (name.endsWith(EXTENSIONS[i])) {
phpFlag = true; // php file extension
break;
}
}
if (phpFlag) {
IPreferenceStore store = PHPeclipsePlugin.getDefault().getPreferenceStore();
if (store.getString(PHPeclipsePlugin.PHP_PARSER_DEFAULT).equals(PHPeclipsePlugin.PHP_INTERNAL_PARSER)) {
// first delete all the previous markers
fileToParse.deleteMarkers(IMarker.PROBLEM, false, 0);
try {
InputStream iStream = fileToParse.getContents();
// int c = iStream.read();
parse(fileToParse, iStream);
iStream.close();
} catch (IOException e) {
}
} else {
PHPParserSuperclass.phpExternalParse(fileToParse);
}
}
} catch (CoreException e) {
}
//
// Process proc = null;
//
// if (this.previousText.equals(this.text)) {
// return true;
// }
//
// try {
// IEditorInput input = fTextEditor.getEditorInput();
// IResource resource =
// (IResource) ((IAdaptable) input).getAdapter(IResource.class);
//
// // Write output file
// FileOutputStream fos = new FileOutputStream(new File(tmpFileName));
// fos.write(text.getBytes());
// fos.flush();
// fos.close();
//
// proc =
// Runtime.getRuntime().exec(
// PerlEditorPlugin
// .getDefault()
// .getExecutablePreference()
// .trim()
// + " "
// + "-I"
// + ((IFileEditorInput) this.fTextEditor.getEditorInput())
// .getFile()
// .getLocation()
// .makeAbsolute()
// .removeLastSegments(1)
// + " "
// + PERL_CMD_EXT
// + " "
// + tmpFileName);
//
// InputStream in = proc.getErrorStream();
//
// StringBuffer content = new StringBuffer();
//
// byte[] buffer = new byte[1];
//
// int read;
// while ((read = in.read(buffer)) > 0) {
// content.append(new String(buffer));
// }
// in.close();
//
// //jjjjjjj
// // DEBUG start
// System.out.println("-----------------------------------------");
// System.out.println(" OUTPUT");
// System.out.println("-----------------------------------------");
// System.out.println(content);
// System.out.println("-----------------------------------------");
// // DEBUG END
//
// String line = null;
// List lines = new ArrayList();
// int index;
//
// // Compare checksums
// int hashCode = content.toString().hashCode();
//
// if (previousHashCode == hashCode) {
//
// return true;
// }
//
// previousHashCode = hashCode;
//
// StringTokenizer st = new StringTokenizer(content.toString(), "\n");
//
// int lineCount = 0;
//
// while (st.hasMoreTokens()) {
// line = st.nextToken();
// if (line.indexOf("\r") != -1) {
// line = line.substring(0, line.indexOf("\r"));
// }
//
// lines.add(line);
// if (++lineCount >= maxErrorsShown) {
// break;
// }
//
// }
//
// //Delete markers
// resource.deleteMarkers(IMarker.PROBLEM, true, 1);
//
// // Markers have to be added in reverse order
// // Otherwise lower line number will appear at the end of the list
// for (int i = lines.size() - 1; i >= 0; i--) {
// line = (String) lines.get(i);
//
// // If error message is not from temporary file, skip
// if (line.indexOf(tmpFileName) == -1) {
// continue;
// }
//
// // Delete filename from error message
// StringBuffer lineSb = new StringBuffer(line);
// replace(lineSb, tmpFileName + " ", "", true);
// line = lineSb.toString();
//
// if ((index = line.indexOf(PERL_ERROR_INDICATOR)) != -1) {
//
// // truncatedLIne is the stripped error-line up to the next " " after the line number if present
// // To avoid cluttering with other "." and "," which might occur in the error message
// String truncatedLine = line;
// if (truncatedLine
// .indexOf(" ", index + PERL_ERROR_INDICATOR.length() + 1)
// != -1) {
// truncatedLine =
// truncatedLine.substring(
// 0,
// truncatedLine.indexOf(
// " ",
// index + PERL_ERROR_INDICATOR.length() + 1));
// }
//
// int endIndex;
// if ((endIndex = truncatedLine.indexOf(".", index)) == -1) {
// endIndex = truncatedLine.indexOf(",", index);
// }
//
// if (endIndex == -1) {
// continue;
// }
//
// String lineNr =
// truncatedLine.substring(
// index + PERL_ERROR_INDICATOR.length(),
// endIndex);
//
// // If there is an addition to the error message
// if (i + 1 < lines.size()) {
// if (((String) lines.get(i + 1)).startsWith(" ")) {
// line += " " + (String) lines.get(i + 1);
// }
// }
//
// IMarker marker = resource.createMarker(IMarker.PROBLEM);
//
// // Check if it's a warning
// boolean isWarning = false;
//
// for (int x = 0; x < WARNING_STRINGS.length; x++) {
// if (truncatedLine.indexOf(WARNING_STRINGS[x]) != -1) {
// isWarning = true;
// }
// }
//
// if (isWarning) {
// marker.setAttribute(
// IMarker.SEVERITY,
// IMarker.SEVERITY_WARNING);
// } else {
// marker.setAttribute(
// IMarker.SEVERITY,
// IMarker.SEVERITY_ERROR);
// }
//
// marker.setAttribute(IMarker.MESSAGE, line);
//
// marker.setAttribute(
// IMarker.LINE_NUMBER,
// Integer.parseInt(lineNr));
//
// Position pos =
// new Position(
// fSourceViewer.getDocument().getLineOffset(
// Integer.parseInt(lineNr) - 1));
// fSourceViewer.getAnnotationModel().addAnnotation(
// new MarkerAnnotation(marker),
// pos);
//
// }
// }
//
// } catch (Exception e) {
// e.printStackTrace();
// if (proc != null) {
// killProcess(proc);
// }
// return false;
// } finally {
// try {
// // Delete tmp file
// new File(tmpFileName).delete();
// } catch (Exception ex) {
// ex.printStackTrace();
// }
// }
return true;
}
/**
* Finds the file that's currently opened in the PHP Text Editor
*/
protected IFile getPHPFile(IEditorInput editorInput) {
if (editorInput instanceof IFileEditorInput)
return ((IFileEditorInput) editorInput).getFile();
return null;
}
protected void parse(IFile fileToParse, InputStream iStream) {
StringBuffer buf = new StringBuffer();
int c0;
try {
while ((c0 = iStream.read()) != (-1)) {
buf.append((char) c0);
}
} catch (IOException e) {
return;
}
String input = buf.toString();
PHPParserSuperclass parser = PHPParserManager.getParser(fileToParse);
try {
parser.parse(input);
} catch (CoreException e) {
}
}
private void killProcess(Process proc) {
while (true) {
try {
proc.destroy();
proc.exitValue();
} catch (Exception ex) {
continue;
}
break;
}
}
// Replaces all instances of the String o with the String n in the
// StringBuffer orig if all is true, or only the first instance if all is false.
private static void replace(
StringBuffer orig,
String o,
String n,
boolean all) {
if (orig == null || o == null || o.length() == 0 || n == null)
throw new IllegalArgumentException("Null or zero-length String");
int i = 0;
while (i + o.length() <= orig.length()) {
if (orig.substring(i, i + o.length()).equals(o)) {
orig.replace(i, i + o.length(), n);
if (!all)
break;
else
i += n.length();
} else
i++;
}
}
}