net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/actions/IncludesScanner.java

   1 package net.sourceforge.phpeclipse.actions;
   2
   3 import java.io.BufferedInputStream;
   4 import java.io.IOException;
   5 import java.io.InputStream;
   6 import java.util.ArrayList;
   7 import java.util.HashSet;
   8 import java.util.List;
   9 import java.util.Set;
  10
  11 import net.sourceforge.phpdt.core.compiler.ITerminalSymbols;
  12 import net.sourceforge.phpdt.core.compiler.InvalidInputException;
  13 import net.sourceforge.phpdt.internal.compiler.parser.Scanner;
  14 import net.sourceforge.phpdt.internal.compiler.parser.SyntaxError;
  15 import net.sourceforge.phpdt.internal.compiler.util.Util;
  16
  17 import org.eclipse.core.resources.IContainer;
  18 import org.eclipse.core.resources.IFile;
  19 import org.eclipse.core.resources.IProject;
  20 import org.eclipse.core.runtime.CoreException;
  21 import org.eclipse.core.runtime.Path;
  22 import org.eclipse.ui.IFileEditorInput;
  23
  24 public class IncludesScanner implements ITerminalSymbols {
  25         // private final PHPOpenAllIncludesEditorAction fOpenAllIncludesAction;
  26         private IProject fProject;
  27
  28         private IFileEditorInput fEditorInput;
  29
  30         private HashSet fSet;
  31
  32         public IncludesScanner(IProject project, IFileEditorInput editorInput) {
  33                 fProject = project;
  34                 // fOpenAllIncludesAction = action;
  35                 fEditorInput = editorInput;
  36                 fSet = new HashSet();
  37         }
  38
  39         /**
  40          * Add the information for a given IFile resource
  41          *
  42          */
  43         public void addFile(IFile fileToParse) {
  44
  45                 try {
  46                         if (fileToParse.exists()) {
  47                                 addInputStream(new BufferedInputStream(fileToParse
  48                                                 .getContents()), fileToParse.getProjectRelativePath()
  49                                                 .toString());
  50                         }
  51                 } catch (CoreException e1) {
  52                         e1.printStackTrace();
  53                 }
  54         }
  55
  56         private void addInputStream(InputStream stream, String filePath)
  57                         throws CoreException {
  58                 try {
  59                         if (fSet.add(filePath)) { // new entry in set
  60                                 parseIdentifiers(Util.getInputStreamAsCharArray(stream, -1,
  61                                                 null));
  62                         }
  63                 } catch (IOException e) {
  64                         e.printStackTrace();
  65                 } finally {
  66                         try {
  67                                 if (stream != null) {
  68                                         stream.close();
  69                                 }
  70                         } catch (IOException e) {
  71                         }
  72                 }
  73         }
  74
  75         /**
  76          * Get the next token from input
  77          */
  78         private TokenName getNextToken(Scanner scanner) {
  79                 TokenName token;
  80                 try {
  81                         token = scanner.getNextToken();
  82                         if (Scanner.DEBUG) {
  83                                 int currentEndPosition = scanner.getCurrentTokenEndPosition();
  84                                 int currentStartPosition = scanner
  85                                                 .getCurrentTokenStartPosition();
  86                                 System.out.print(currentStartPosition + ","
  87                                                 + currentEndPosition + ": ");
  88                                 System.out.println(scanner.toStringAction(token));
  89                         }
  90                         return token;
  91                 } catch (InvalidInputException e) {
  92                 }
  93                 return TokenName.ERROR;
  94         }
  95
  96         private void parseIdentifiers(char[] charArray) {
  97                 IFile file;
  98                 Scanner scanner = new Scanner(false, false, false, false, true, null,
  99                                 null, true /* taskCaseSensitive */);
 100                 scanner.setSource(charArray);
 101                 scanner.setPHPMode(false);
 102                 TokenName token = getNextToken(scanner);
 103                 try {
 104                         while (token != TokenName.EOF) { // && fToken != TokenName.ERROR) {
 105                                 if (token == TokenName.INCLUDE || token == TokenName.INCLUDE_ONCE
 106                                                 || token == TokenName.REQUIRE
 107                                                 || token == TokenName.REQUIRE_ONCE) {
 108                                         while (token != TokenName.EOF && token != TokenName.ERROR
 109                                                         && token != TokenName.SEMICOLON
 110                                                         && token != TokenName.RPAREN
 111                                                         && token != TokenName.LBRACE
 112                                                         && token != TokenName.RBRACE) {
 113                                                 token = getNextToken(scanner);
 114                                                 if (token == TokenName.STRINGDOUBLEQUOTE
 115                                                                 || token == TokenName.STRINGSINGLEQUOTE) {
 116                                                         char[] includeName = scanner
 117                                                                         .getCurrentStringLiteralSource();
 118                                                         try {
 119                                                             System.out.println(includeName);
 120                                                                 file = getIncludeFile(new String(includeName));
 121                                                                 addFile(file);
 122                                                         } catch (Exception e) {
 123                                                                 // ignore
 124                                                         }
 125                                                         break;
 126                                                 }
 127                                         }
 128                                 }
 129                                 token = getNextToken(scanner);
 130                         }
 131                 } catch (SyntaxError e) {
 132                         // e.printStackTrace();
 133                 }
 134         }
 135
 136         private IContainer getWorkingLocation(IFileEditorInput editorInput) {
 137                 if (editorInput == null || editorInput.getFile() == null) {
 138                         return null;
 139                 }
 140                 return editorInput.getFile().getParent();
 141         }
 142
 143         public IFile getIncludeFile(String relativeFilename) {
 144                 IContainer container = getWorkingLocation(fEditorInput);
 145                 IFile file = null;
 146                 if (relativeFilename.startsWith("../")) {
 147                         Path path = new Path(relativeFilename);
 148                         file = container.getFile(path);
 149                         return file;
 150                 }
 151                 int index = relativeFilename.lastIndexOf('/');
 152
 153                 if (index >= 0) {
 154                         Path path = new Path(relativeFilename);
 155                         file = fProject.getFile(path);
 156                         if (file.exists()) {
 157                                 return file;
 158                         }
 159                 }
 160                 Path path = new Path(relativeFilename);
 161                 file = container.getFile(path);
 162
 163                 return file;
 164         }
 165
 166         /**
 167          * Returns a list of includes
 168          *
 169          * @return the determined list of includes
 170          */
 171         public List getList() {
 172                 ArrayList list = new ArrayList();
 173                 list.addAll(fSet);
 174                 return list;
 175         }
 176
 177         /**
 178          * @return Returns the set.
 179          */
 180         public Set getSet() {
 181                 return fSet;
 182         }
 183 }