package net.sourceforge.phpeclipse.builder; import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.io.InputStream; import java.util.ArrayList; import java.util.Collection; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.StringTokenizer; import net.sourceforge.phpdt.core.compiler.ITerminalSymbols; import net.sourceforge.phpdt.core.compiler.InvalidInputException; import net.sourceforge.phpdt.internal.compiler.parser.Scanner; import net.sourceforge.phpdt.internal.compiler.parser.SyntaxError; import net.sourceforge.phpeclipse.mover.obfuscator.PHPIdentifier; import org.eclipse.core.resources.IFile; import org.eclipse.core.runtime.CoreException; /** * Manages the identifer index information for a specific project * */ public class IdentifierIndexManager { public class LineCreator implements ITerminalSymbols { private Scanner fScanner; private int fToken; public LineCreator() { fScanner = new Scanner(true, false); } /** * Add the information of the current identifier to the line * * @param typeOfIdentifier the type of the identifier ('c'lass, 'd'efine, 'f'unction, 'm'ethod, 'v'ariable) * @param identifier current identifier * @param line Buffer for the current index line * @param phpdocOffset the offset of the PHPdoc comment if available * @param phpdocLength the length of the PHPdoc comment if available */ private void addIdentifierInformation( char typeOfIdentifier, char[] identifier, StringBuffer line, int phpdocOffset, int phpdocLength) { line.append('\t'); line.append(typeOfIdentifier); line.append(identifier); line.append("\to"); // Offset line.append(fScanner.getCurrentTokenStartPosition()); if (phpdocOffset >= 0) { line.append("\tp"); // phpdoc offset line.append(phpdocOffset); line.append("\tl"); // phpdoc length line.append(phpdocLength); } } /** * Get the next token from input */ private void getNextToken() { try { fToken = fScanner.getNextToken(); if (Scanner.DEBUG) { int currentEndPosition = fScanner.getCurrentTokenEndPosition(); int currentStartPosition = fScanner.getCurrentTokenStartPosition(); System.out.print(currentStartPosition + "," + currentEndPosition + ": "); System.out.println(fScanner.toStringAction(fToken)); } return; } catch (InvalidInputException e) { // ignore errors } fToken = TokenNameERROR; } private void parseDeclarations(StringBuffer buf, boolean goBack) { char[] ident; int counter = 0; int phpdocOffset = -1; int phpdocLength = -1; try { while (fToken != TokenNameEOF && fToken != TokenNameERROR) { phpdocOffset = -1; if (fToken == TokenNameCOMMENT_PHPDOC) { phpdocOffset = fScanner.getCurrentTokenStartPosition(); phpdocLength = fScanner.getCurrentTokenEndPosition() - fScanner.getCurrentTokenStartPosition() + 1; getNextToken(); if (fToken == TokenNameEOF || fToken == TokenNameERROR) { break; } } if (fToken == TokenNamevar) { getNextToken(); if (fToken == TokenNameVariable) { ident = fScanner.getCurrentIdentifierSource(); addIdentifierInformation('v', ident, buf, phpdocOffset, phpdocLength); getNextToken(); } } else if (fToken == TokenNamefunction) { getNextToken(); if (fToken == TokenNameAND) { getNextToken(); } if (fToken == TokenNameIdentifier) { ident = fScanner.getCurrentIdentifierSource(); addIdentifierInformation('m', ident, buf, phpdocOffset, phpdocLength); getNextToken(); parseDeclarations(buf, true); } } else if (fToken == TokenNameclass) { getNextToken(); if (fToken == TokenNameIdentifier) { ident = fScanner.getCurrentIdentifierSource(); addIdentifierInformation('c', ident, buf, phpdocOffset, phpdocLength); getNextToken(); //skip tokens for classname, extends and others until we have the opening '{' while (fToken != TokenNameLBRACE && fToken != TokenNameEOF && fToken != TokenNameERROR) { getNextToken(); } parseDeclarations(buf, true); } } else if (fToken == TokenNamedefine) { getNextToken(); if (fToken == TokenNameLPAREN) { getNextToken(); if (fToken == TokenNameStringLiteral) { ident = fScanner.getCurrentStringLiteralSource(); addIdentifierInformation('d', ident, buf, phpdocOffset, phpdocLength); getNextToken(); } } } else if ((fToken == TokenNameLBRACE) || (fToken == TokenNameDOLLAR_LBRACE)) { getNextToken(); counter++; } else if (fToken == TokenNameRBRACE) { getNextToken(); --counter; if (counter == 0 && goBack) { return; } } else { getNextToken(); } } } catch (SyntaxError e) { // TODO Auto-generated catch block e.printStackTrace(); } } public void parseIdentifiers(char[] charArray, StringBuffer buf) { char[] ident; String identifier; int counter = 0; int phpdocOffset = -1; int phpdocLength = -1; fScanner.setSource(charArray); fScanner.setPHPMode(false); fToken = TokenNameEOF; getNextToken(); try { while (fToken != TokenNameEOF && fToken != TokenNameERROR) { phpdocOffset = -1; if (fToken == TokenNameCOMMENT_PHPDOC) { phpdocOffset = fScanner.getCurrentTokenStartPosition(); phpdocLength = fScanner.getCurrentTokenEndPosition() - fScanner.getCurrentTokenStartPosition() + 1; getNextToken(); if (fToken == TokenNameEOF || fToken == TokenNameERROR) { break; } } if (fToken == TokenNamefunction) { getNextToken(); if (fToken == TokenNameAND) { getNextToken(); } if (fToken == TokenNameIdentifier) { ident = fScanner.getCurrentIdentifierSource(); addIdentifierInformation('f', ident, buf, phpdocOffset, phpdocLength); getNextToken(); parseDeclarations(buf, true); } } else if (fToken == TokenNameclass) { getNextToken(); if (fToken == TokenNameIdentifier) { ident = fScanner.getCurrentIdentifierSource(); addIdentifierInformation('c', ident, buf, phpdocOffset, phpdocLength); getNextToken(); //skip fTokens for classname, extends and others until we have the opening '{' while (fToken != TokenNameLBRACE && fToken != TokenNameEOF && fToken != TokenNameERROR) { getNextToken(); } parseDeclarations(buf, true); } } else if (fToken == TokenNamedefine) { getNextToken(); if (fToken == TokenNameLPAREN) { getNextToken(); if (fToken == TokenNameStringLiteral) { ident = fScanner.getCurrentStringLiteralSource(); addIdentifierInformation('d', ident, buf, phpdocOffset, phpdocLength); getNextToken(); } } } else { getNextToken(); } } } catch (SyntaxError e) { // TODO Auto-generated catch block e.printStackTrace(); } } } private HashMap fFileMap; private String fFilename; private HashMap fIndentifierMap; public IdentifierIndexManager(String filename) { fFilename = filename; initialize(); readFile(); } /** * Add the information for a given IFile resource * */ public void addFile(IFile fileToParse) { InputStream iStream; LineCreator lineCreator = new LineCreator(); try { iStream = fileToParse.getContents(); StringBuffer buf = new StringBuffer(); int c0; try { while ((c0 = iStream.read()) != (-1)) { buf.append((char) c0); } } catch (IOException e) { return; } StringBuffer lineBuffer = new StringBuffer(); // lineBuffer.append(fileToParse.getLocation().toString()); lineBuffer.append(fileToParse.getFullPath().toString()); int lineLength = lineBuffer.length(); lineCreator.parseIdentifiers(buf.toString().toCharArray(), lineBuffer); if (lineLength != lineBuffer.length()) { addLine(lineBuffer.toString()); } } catch (CoreException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } } /** * Adds a line of the index file for function, class, class-method and class-variable names * * @param line */ private void addLine(String line) { StringTokenizer tokenizer; String phpFileName = null; String token; String identifier = null; String classname = null; String offset = null; PHPIdentifierLocation phpIdentifier = null; boolean tokenExists = false; tokenizer = new StringTokenizer(line, "\t"); // first token contains the filename: if (tokenizer.hasMoreTokens()) { phpFileName = tokenizer.nextToken(); //System.out.println(token); } else { return; } // all the other tokens are identifiers: while (tokenizer.hasMoreTokens()) { token = tokenizer.nextToken(); //System.out.println(token); switch (token.charAt(0)) { case 'c' : // class name identifier = token.substring(1); classname = identifier; phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.CLASS, phpFileName); break; case 'd' : // define identifier = token.substring(1); phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.DEFINE, phpFileName); break; case 'f' : // function name identifier = token.substring(1); phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.FUNCTION, phpFileName); break; case 'm' : //method inside a class identifier = token.substring(1); phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.METHOD, phpFileName, classname); break; case 'v' : // variable inside a class identifier = token.substring(1); phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.VARIABLE, phpFileName, classname); break; case 'o' : // offset information identifier = null; if (phpIdentifier != null) { offset = token.substring(1); phpIdentifier.setOffset(Integer.parseInt(offset)); } break; case 'p' : // PHPdoc offset information identifier = null; if (phpIdentifier != null) { offset = token.substring(1); phpIdentifier.setPHPDocOffset(Integer.parseInt(offset)); } break; case 'l' : // PHPdoc length information identifier = null; if (phpIdentifier != null) { offset = token.substring(1); phpIdentifier.setPHPDocLength(Integer.parseInt(offset)); } break; default : identifier = null; phpIdentifier = null; classname = null; } if (identifier != null && phpIdentifier != null) { tokenExists = true; ArrayList list = (ArrayList) fIndentifierMap.get(identifier); if (list == null) { list = new ArrayList(); list.add(phpIdentifier); fIndentifierMap.put(identifier, list); } else { boolean flag = false; for (int i = 0; i < list.size(); i++) { if (list.get(i).equals(phpIdentifier)) { flag = true; break; } } if (flag == false) { list.add(phpIdentifier); } } } } if (tokenExists) { fFileMap.put(phpFileName, line); } } /** * Change the information for a given IFile resource * */ public void changeFile(IFile fileToParse) { removeFile(fileToParse); addFile(fileToParse); } /** * Get a list of all PHPIdentifierLocation object's associated with an identifier * * @param identifier * @return */ public List getLocations(String identifier) { return (List) fIndentifierMap.get(identifier); } /** * Initialize (i.e. clear) the current index information * */ public void initialize() { fIndentifierMap = new HashMap(); fFileMap = new HashMap(); } private void readFile() { FileReader fileReader; try { fileReader = new FileReader(fFilename); BufferedReader bufferedReader = new BufferedReader(fileReader); String line; while (bufferedReader.ready()) { // all entries for one file are in a line // separated by tabs ! line = bufferedReader.readLine(); addLine(line); } fileReader.close(); } catch (FileNotFoundException e) { // ignore this // TODO DialogBox which asks the user if she/he likes to build new index? } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } /** * Remove the information for a given IFile resource * */ public void removeFile(IFile fileToParse) { // String line = (String) fFileMap.get(fileToParse.getLocation().toString()); String line = (String) fFileMap.get(fileToParse.getFullPath().toString()); if (line != null) { removeLine(line); } } /** * Removes a line of the index file for function, class, class-method and class-variable names * * @param line */ private void removeLine(String line) { StringTokenizer tokenizer; String phpFileName = null; String token; String identifier = null; String classname = null; PHPIdentifier phpIdentifier = null; boolean tokenExists = false; tokenizer = new StringTokenizer(line, "\t"); // first token contains the filename: if (tokenizer.hasMoreTokens()) { phpFileName = tokenizer.nextToken(); //System.out.println(token); } else { return; } // all the other tokens are identifiers: while (tokenizer.hasMoreTokens()) { token = tokenizer.nextToken(); //System.out.println(token); switch (token.charAt(0)) { case 'c' : // class name identifier = token.substring(1); classname = identifier; phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.CLASS, phpFileName); break; case 'd' : // define identifier = token.substring(1); phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.DEFINE, phpFileName); break; case 'f' : // function name identifier = token.substring(1); phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.FUNCTION, phpFileName); break; case 'm' : //method inside a class identifier = token.substring(1); phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.METHOD, phpFileName, classname); break; case 'v' : // variable inside a class identifier = token.substring(1); phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.VARIABLE, phpFileName, classname); break; default : identifier = null; phpIdentifier = null; classname = null; } if (identifier != null && phpIdentifier != null) { ArrayList list = (ArrayList) fIndentifierMap.get(identifier); if (list == null) { } else { for (int i = 0; i < list.size(); i++) { if (list.get(i).equals(phpIdentifier)) { list.remove(i); break; } } if (list.size() == 0) { fIndentifierMap.remove(identifier); } } } } fFileMap.remove(phpFileName); } /** * Save the current index information in the projects index file * */ public void writeFile() { FileWriter fileWriter; try { fileWriter = new FileWriter(fFilename); String line; Collection collection = fFileMap.values(); Iterator iterator = collection.iterator(); while (iterator.hasNext()) { line = (String) iterator.next(); fileWriter.write(line + '\n'); } fileWriter.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }