List of usage examples for java.io StreamTokenizer eolIsSignificant
public void eolIsSignificant(boolean flag)
From source file:Matrix.java
/** * Read a matrix from a stream. The format is the same the print method, so * printed matrices can be read back in (provided they were printed using US * Locale). Elements are separated by whitespace, all the elements for each * row appear on a single line, the last row is followed by a blank line. * // ww w . j a v a 2s .c o m * @param input * the input stream. */ public static Matrix read(BufferedReader input) throws java.io.IOException { StreamTokenizer tokenizer = new StreamTokenizer(input); // Although StreamTokenizer will parse numbers, it doesn't recognize // scientific notation (E or D); however, Double.valueOf does. // The strategy here is to disable StreamTokenizer's number parsing. // We'll only get whitespace delimited words, EOL's and EOF's. // These words should all be numbers, for Double.valueOf to parse. tokenizer.resetSyntax(); tokenizer.wordChars(0, 255); tokenizer.whitespaceChars(0, ' '); tokenizer.eolIsSignificant(true); java.util.Vector v = new java.util.Vector(); // Ignore initial empty lines while (tokenizer.nextToken() == StreamTokenizer.TT_EOL) ; if (tokenizer.ttype == StreamTokenizer.TT_EOF) throw new java.io.IOException("Unexpected EOF on matrix read."); do { v.addElement(Double.valueOf(tokenizer.sval)); // Read & store 1st // row. } while (tokenizer.nextToken() == StreamTokenizer.TT_WORD); int n = v.size(); // Now we've got the number of columns! double row[] = new double[n]; for (int j = 0; j < n; j++) // extract the elements of the 1st row. row[j] = ((Double) v.elementAt(j)).doubleValue(); v.removeAllElements(); v.addElement(row); // Start storing rows instead of columns. while (tokenizer.nextToken() == StreamTokenizer.TT_WORD) { // While non-empty lines v.addElement(row = new double[n]); int j = 0; do { if (j >= n) throw new java.io.IOException("Row " + v.size() + " is too long."); row[j++] = Double.valueOf(tokenizer.sval).doubleValue(); } while (tokenizer.nextToken() == StreamTokenizer.TT_WORD); if (j < n) throw new java.io.IOException("Row " + v.size() + " is too short."); } int m = v.size(); // Now we've got the number of rows. double[][] A = new double[m][]; v.copyInto(A); // copy the rows out of the vector return new Matrix(A); }
From source file:com.redskyit.scriptDriver.RunTests.java
private void parseBlock(ExecutionContext script, StreamTokenizer tokenizer, BlockHandler handler) throws Exception { tokenizer.nextToken();/*w ww . ja v a 2 s .co m*/ if (tokenizer.ttype == '{') { int braceLevel = 1; System.out.print(" {"); tokenizer.eolIsSignificant(true); tokenizer.nextToken(); while (tokenizer.ttype == StreamTokenizer.TT_WORD || tokenizer.ttype == '"' || tokenizer.ttype == StreamTokenizer.TT_NUMBER || tokenizer.ttype == '\n' || tokenizer.ttype == '{' || tokenizer.ttype == '}' || tokenizer.ttype == ',' || tokenizer.ttype == '*' || tokenizer.ttype == ':') { System.out.print(' '); String arg; switch (tokenizer.ttype) { case '{': braceLevel++; arg = "{"; break; case '}': if (--braceLevel == 0) { System.out.print("}"); tokenizer.eolIsSignificant(false); return; } arg = "}"; break; case StreamTokenizer.TT_NUMBER: arg = String.valueOf(tokenizer.nval); break; case StreamTokenizer.TT_EOL: arg = "\n"; break; case '"': // 5 backslashed required in replace string because its processed once // as a string (yielding \\") and then again by the replace method // of the regular expression (so \\" becomes \") arg = '"' + script.getExpandedString(tokenizer).replaceAll("\"", "\\\\\"") + '"'; break; case ',': arg = ","; break; case ':': arg = ":"; break; case '*': arg = "*"; break; default: arg = script.getExpandedString(tokenizer); } System.out.print(arg); handler.parseToken(tokenizer, arg); tokenizer.nextToken(); } System.out.println(); throw new Exception("args unexpectd token " + tokenizer.ttype); } tokenizer.pushBack(); // no arguments }
From source file:FourByFour.java
public void actionPerformed(ActionEvent event) { Object target = event.getSource(); // Process the button events. if (target == skill_return_button) { skill_panel.setVisible(false);//from w ww.ja v a2s.c o m skill_return_button.setVisible(false); c_container.setVisible(true); b_container.setVisible(true); newGame(); } else if (target == winner_return_button) { if (winner_flag) { String name = winner_name.getText(); String tmp_name = new String(""); int tmp_score = 0; boolean insert_flag = false; winner_flag = false; for (int i = 0; i < 20; i++) { if (insert_flag) { name = names[i]; score = scores[i]; names[i] = tmp_name; scores[i] = tmp_score; tmp_name = name; tmp_score = score; } if (!insert_flag && score > scores[i]) { tmp_name = names[i]; tmp_score = scores[i]; scores[i] = score; names[i] = name; insert_flag = true; } high_names[i].setText(names[i]); high_scores[i].setText(Integer.toString(scores[i])); } scoresString = new String(""); int place; for (int i = 0; i < 20; i++) { place = (int) places[i]; scoresString += Integer.toString(place); scoresString += "\t"; scoresString += names[i]; scoresString += " "; scoresString += Integer.toString(scores[i]); scoresString += "\n"; } if (appletFlag) { // Use this section of code when writing the high // scores file back to a server. Requires the use // of a deamon on the server to receive the socket // connection. // // Create the output stream. // try { // Socket socket = new Socket(host, port); // outStream = new BufferedOutputStream // (socket.getOutputStream(), 8192); // } // catch(IOException ioe) { // System.out.println("Error: " + ioe.toString()); // } // System.out.println("Output stream opened"); // // Write the scores to the file back on the server. // outText = scoresString.getBytes(); // try { // outStream.write(outText); // outStream.flush(); // outStream.close(); // outStream = null; // } // catch (IOException ioe) { // System.out.println("Error: " + ioe.toString()); // } // System.out.println("Output stream written"); try { OutputStreamWriter outFile = new OutputStreamWriter(new FileOutputStream("scores.txt")); outFile.write(scoresString); outFile.flush(); outFile.close(); outFile = null; } catch (IOException ioe) { System.out.println("Error: " + ioe.toString()); } catch (Exception e) { System.out.println("Error: " + e.toString()); } } else { try { OutputStreamWriter outFile = new OutputStreamWriter(new FileOutputStream("scores.txt")); outFile.write(scoresString); outFile.flush(); outFile.close(); outFile = null; } catch (IOException ioe) { System.out.println("Error: " + ioe.toString()); } } } winner_panel.setVisible(false); winner_return_button.setVisible(false); winner_label.setVisible(false); winner_score_label.setVisible(false); winner_name_label.setVisible(false); winner_top_label.setVisible(false); winner_name.setVisible(false); c_container.setVisible(true); b_container.setVisible(true); } else if (target == high_return_button) { high_return_button.setVisible(false); high_panel.setVisible(false); c_container.setVisible(true); b_container.setVisible(true); } else if (target == instruct_return_button) { instruct_text.setVisible(false); instruct_return_button.setVisible(false); instruct_text.repaint(); c_container.setVisible(true); b_container.setVisible(true); } else if (target == undo_button) { board.undo_move(); canvas2D.repaint(); } else if (target == instruct_button) { c_container.setVisible(false); b_container.setVisible(false); instruct_text.setVisible(true); instruct_return_button.setVisible(true); } else if (target == new_button) { newGame(); } else if (target == skill_button) { c_container.setVisible(false); b_container.setVisible(false); skill_panel.setVisible(true); skill_return_button.setVisible(true); } else if (target == high_button) { // Read the high scores file. if (appletFlag) { try { inStream = new BufferedInputStream(new URL(getCodeBase(), "scores.txt").openStream(), 8192); Reader read = new BufferedReader(new InputStreamReader(inStream)); StreamTokenizer st = new StreamTokenizer(read); st.whitespaceChars(32, 44); st.eolIsSignificant(false); int count = 0; int token = st.nextToken(); boolean scoreFlag = true; String string; while (count < 20) { places[count] = (int) st.nval; string = new String(""); token = st.nextToken(); while (token == StreamTokenizer.TT_WORD) { string += st.sval; string += " "; token = st.nextToken(); } names[count] = string; scores[count] = (int) st.nval; token = st.nextToken(); count++; } inStream.close(); } catch (Exception ioe) { System.out.println("Error: " + ioe.toString()); } } else { try { inStream = new BufferedInputStream(new FileInputStream("scores.txt")); Reader read = new BufferedReader(new InputStreamReader(inStream)); StreamTokenizer st = new StreamTokenizer(read); st.whitespaceChars(32, 44); st.eolIsSignificant(false); int count = 0; int token = st.nextToken(); boolean scoreFlag = true; String string; while (count < 20) { places[count] = (int) st.nval; string = new String(""); token = st.nextToken(); while (token == StreamTokenizer.TT_WORD) { string += st.sval; string += " "; token = st.nextToken(); } names[count] = string; scores[count] = (int) st.nval; token = st.nextToken(); count++; } inStream.close(); } catch (Exception ioe) { System.out.println("Error: " + ioe.toString()); } } c_container.setVisible(false); b_container.setVisible(false); high_panel.setVisible(true); high_return_button.setVisible(true); } Checkbox box = group.getSelectedCheckbox(); String label = box.getLabel(); if (label.equals("Babe in the Woods ")) { board.set_skill_level(0); } else if (label.equals("Walk and Chew Gum ")) { board.set_skill_level(1); } else if (label.equals("Jeopardy Contestant ")) { board.set_skill_level(2); } else if (label.equals("Rocket Scientist ")) { board.set_skill_level(3); } else if (label.equals("Be afraid, be very afraid")) { board.set_skill_level(4); } }
From source file:FourByFour.java
/** * Initialization/* www. ja v a 2 s . co m*/ */ public void init() { // Set the port number. port = 4111; // Set the graphics window size. width = 350; height = 350; // Set the weighting factors used for scoring. level_weight = 1311; move_weight = 111; time_weight = 1000; // Create the "base" color for the AWT components. setBackground(new Color(200, 200, 200)); // Read the instructions file. if (appletFlag) { // Get the host from which this applet came. host = getCodeBase().getHost(); try { inStream = new BufferedInputStream(new URL(getCodeBase(), "instructions.txt").openStream(), 8192); text = new byte[5000]; int character = inStream.read(); int count = 0; while (character != -1) { text[count++] = (byte) character; character = inStream.read(); } textString = new String(text); inStream.close(); } catch (Exception e) { System.out.println("Error: " + e.toString()); } } else { try { inStream = new BufferedInputStream(new FileInputStream("instructions.txt")); text = new byte[5000]; int character = inStream.read(); int count = 0; while (character != -1) { text[count++] = (byte) character; character = inStream.read(); } textString = new String(text); inStream.close(); } catch (Exception e) { System.out.println("Error: " + e.toString()); } } // Read the high-scores file. places = new int[20]; scores = new int[20]; names = new String[20]; if (appletFlag) { try { inStream = new BufferedInputStream(new URL(getCodeBase(), "scores.txt").openStream(), 8192); Reader read = new BufferedReader(new InputStreamReader(inStream)); StreamTokenizer st = new StreamTokenizer(read); st.whitespaceChars(32, 44); st.eolIsSignificant(false); int count = 0; int token = st.nextToken(); boolean scoreFlag = true; String string; while (count < 20) { places[count] = (int) st.nval; string = new String(""); token = st.nextToken(); while (token == StreamTokenizer.TT_WORD) { string += st.sval; string += " "; token = st.nextToken(); } names[count] = string; scores[count] = (int) st.nval; token = st.nextToken(); count++; } inStream.close(); } catch (Exception e) { System.out.println("Error: " + e.toString()); } } else { try { inStream = new BufferedInputStream(new FileInputStream("scores.txt")); Reader read = new BufferedReader(new InputStreamReader(inStream)); StreamTokenizer st = new StreamTokenizer(read); st.whitespaceChars(32, 44); st.eolIsSignificant(false); int count = 0; int token = st.nextToken(); boolean scoreFlag = true; String string; while (count < 20) { places[count] = (int) st.nval; string = new String(""); token = st.nextToken(); while (token == StreamTokenizer.TT_WORD) { string += st.sval; string += " "; token = st.nextToken(); } names[count] = string; scores[count] = (int) st.nval; token = st.nextToken(); count++; } inStream.close(); } catch (Exception e) { System.out.println("Error: " + e.toString()); } } // The positions object sets up the switch nodes which // control the rendering of the player's positions. positions = new Positions(); // Create the game board object which is responsible // for keeping track of the moves on the game board // and determining what move the computer should make. board = new Board(this, positions, width, height); positions.setBoard(board); // Create a 2D graphics canvas. canvas2D = new Canvas2D(board); canvas2D.setSize(width, height); canvas2D.setLocation(width + 10, 5); canvas2D.addMouseListener(canvas2D); board.setCanvas(canvas2D); // Create the 2D backbuffer backbuffer2D = createImage(width, height); canvas2D.setBuffer(backbuffer2D); // Create a 3D graphics canvas. canvas3D = new Canvas3D(SimpleUniverse.getPreferredConfiguration()); canvas3D.setSize(width, height); canvas3D.setLocation(5, 5); // Create the scene branchgroup. BranchGroup scene3D = createScene3D(); // Create a universe with the Java3D universe utility. universe = new SimpleUniverse(canvas3D); universe.addBranchGraph(scene3D); // Use parallel projection. View view = universe.getViewer().getView(); view.setProjectionPolicy(View.PARALLEL_PROJECTION); // Set the universe Transform3D object. TransformGroup tg = universe.getViewingPlatform().getViewPlatformTransform(); Transform3D transform = new Transform3D(); transform.set(65.f, new Vector3f(0.0f, 0.0f, 400.0f)); tg.setTransform(transform); // Create the canvas container. c_container = new Panel(); c_container.setSize(720, 360); c_container.setLocation(0, 0); c_container.setVisible(true); c_container.setLayout(null); add(c_container); // Add the 2D and 3D canvases to the container. c_container.add(canvas2D); c_container.add(canvas3D); // Turn off the layout manager, widgets will be sized // and positioned explicitly. setLayout(null); // Create the button container. b_container = new Panel(); b_container.setSize(720, 70); b_container.setLocation(0, 360); b_container.setVisible(true); b_container.setLayout(null); // Create the buttons. instruct_button = new Button("Instructions"); instruct_button.setSize(135, 25); instruct_button.setLocation(10, 10); instruct_button.setVisible(true); instruct_button.addActionListener(this); new_button = new Button("New Game"); new_button.setSize(135, 25); new_button.setLocation(150, 10); new_button.setVisible(true); new_button.addActionListener(this); undo_button = new Button("Undo Move"); undo_button.setSize(135, 25); undo_button.setLocation(290, 10); undo_button.setVisible(true); undo_button.addActionListener(this); skill_button = new Button("Skill Level"); skill_button.setSize(135, 25); skill_button.setLocation(430, 10); skill_button.setVisible(true); skill_button.addActionListener(this); high_button = new Button("High Scores"); high_button.setSize(135, 25); high_button.setLocation(570, 10); high_button.setVisible(true); high_button.addActionListener(this); b_container.add(new_button); b_container.add(undo_button); b_container.add(skill_button); b_container.add(high_button); b_container.add(instruct_button); // Add the button container to the applet. add(b_container); // Create the "Skill Level" dialog box. skill_panel = new Panel(); skill_panel.setSize(400, 300); skill_panel.setLocation(200, 20); skill_panel.setLayout(null); skill_label = new Label("Pick your skill level:"); skill_label.setSize(200, 25); skill_label.setLocation(25, 20); skill_label.setVisible(true); skill_panel.add(skill_label); group = new CheckboxGroup(); Checkbox skill_1 = new Checkbox("Babe in the Woods ", group, false); Checkbox skill_2 = new Checkbox("Walk and Chew Gum ", group, false); Checkbox skill_3 = new Checkbox("Jeopardy Contestant ", group, false); Checkbox skill_4 = new Checkbox("Rocket Scientist ", group, false); Checkbox skill_5 = new Checkbox("Be afraid, be very afraid", group, true); skill_1.setSize(170, 25); skill_1.setLocation(80, 60); skill_1.setVisible(true); skill_2.setSize(170, 25); skill_2.setLocation(80, 100); skill_2.setVisible(true); skill_3.setSize(170, 25); skill_3.setLocation(80, 140); skill_3.setVisible(true); skill_4.setSize(170, 25); skill_4.setLocation(80, 180); skill_4.setVisible(true); skill_5.setSize(170, 25); skill_5.setLocation(80, 220); skill_5.setVisible(true); skill_return_button = new Button("Return"); skill_return_button.setSize(120, 25); skill_return_button.setLocation(300, 370); skill_return_button.setVisible(false); skill_return_button.addActionListener(this); skill_panel.add(skill_1); skill_panel.add(skill_2); skill_panel.add(skill_3); skill_panel.add(skill_4); skill_panel.add(skill_5); skill_panel.setVisible(false); add(skill_return_button); add(skill_panel); // Create the "Instructions" panel. instruct_return_button = new Button("Return"); instruct_return_button.setLocation(300, 370); instruct_return_button.setSize(120, 25); instruct_return_button.setVisible(false); instruct_return_button.addActionListener(this); instruct_text = new TextArea(textString, 100, 200, TextArea.SCROLLBARS_VERTICAL_ONLY); instruct_text.setSize(715, 350); instruct_text.setLocation(0, 0); instruct_text.setVisible(false); add(instruct_text); add(instruct_return_button); high_panel = new Panel(); high_panel.setSize(715, 350); high_panel.setLocation(0, 0); high_panel.setVisible(false); high_panel.setLayout(null); high_label = new Label("High Scores"); high_label.setLocation(330, 5); high_label.setSize(200, 30); high_label.setVisible(true); high_panel.add(high_label); high_places = new Label[20]; high_names = new Label[20]; high_scores = new Label[20]; for (int i = 0; i < 20; i++) { high_places[i] = new Label(Integer.toString(i + 1)); high_places[i].setSize(20, 30); high_places[i].setVisible(true); high_names[i] = new Label(names[i]); high_names[i].setSize(150, 30); high_names[i].setVisible(true); high_scores[i] = new Label(Integer.toString(scores[i])); high_scores[i].setSize(150, 30); high_scores[i].setVisible(true); if (i < 10) { high_places[i].setLocation(70, i * 30 + 40); high_names[i].setLocation(100, i * 30 + 40); high_scores[i].setLocation(260, i * 30 + 40); } else { high_places[i].setLocation(425, (i - 10) * 30 + 40); high_names[i].setLocation(455, (i - 10) * 30 + 40); high_scores[i].setLocation(615, (i - 10) * 30 + 40); } high_panel.add(high_places[i]); high_panel.add(high_names[i]); high_panel.add(high_scores[i]); } high_return_button = new Button("Return"); high_return_button.setSize(120, 25); high_return_button.setLocation(300, 370); high_return_button.setVisible(false); high_return_button.addActionListener(this); add(high_return_button); add(high_panel); // Create the "Winner" dialog box winner_panel = new Panel(); winner_panel.setLayout(null); winner_panel.setSize(600, 500); winner_panel.setLocation(0, 0); winner_return_button = new Button("Return"); winner_return_button.setSize(120, 25); winner_return_button.setLocation(300, 360); winner_return_button.addActionListener(this); winner_panel.add(winner_return_button); winner_label = new Label(""); winner_label.setSize(200, 30); winner_label.setLocation(270, 110); winner_score_label = new Label(""); winner_score_label.setSize(200, 30); winner_top_label = new Label("You have a score in the top 20."); winner_top_label.setSize(200, 25); winner_top_label.setLocation(260, 185); winner_top_label.setVisible(false); winner_name_label = new Label("Enter your name here:"); winner_name_label.setSize(150, 25); winner_name_label.setLocation(260, 210); winner_name_label.setVisible(false); winner_name = new TextField(""); winner_name.setSize(200, 30); winner_name.setLocation(260, 240); winner_name.setVisible(false); winner_panel.add(winner_label); winner_panel.add(winner_score_label); winner_panel.add(winner_top_label); winner_panel.add(winner_name_label); winner_panel.add(winner_name); winner_panel.setVisible(false); add(winner_panel); }
From source file:org.apache.wiki.plugin.DefaultPluginManager.java
/** * Parses plugin arguments. Handles quotes and all other kewl stuff. * * <h3>Special parameters</h3> * The plugin body is put into a special parameter defined by {@link #PARAM_BODY}; * the plugin's command line into a parameter defined by {@link #PARAM_CMDLINE}; * and the bounds of the plugin within the wiki page text by a parameter defined * by {@link #PARAM_BOUNDS}, whose value is stored as a two-element int[] array, * i.e., <tt>[start,end]</tt>. * * @param argstring The argument string to the plugin. This is * typically a list of key-value pairs, using "'" to escape * spaces in strings, followed by an empty line and then the * plugin body. In case the parameter is null, will return an * empty parameter list./* w w w.ja va 2 s .c o m*/ * * @return A parsed list of parameters. * * @throws IOException If the parsing fails. */ public Map<String, String> parseArgs(String argstring) throws IOException { Map<String, String> arglist = new HashMap<String, String>(); // // Protection against funny users. // if (argstring == null) return arglist; arglist.put(PARAM_CMDLINE, argstring); StringReader in = new StringReader(argstring); StreamTokenizer tok = new StreamTokenizer(in); int type; String param = null; String value = null; tok.eolIsSignificant(true); boolean potentialEmptyLine = false; boolean quit = false; while (!quit) { String s; type = tok.nextToken(); switch (type) { case StreamTokenizer.TT_EOF: quit = true; s = null; break; case StreamTokenizer.TT_WORD: s = tok.sval; potentialEmptyLine = false; break; case StreamTokenizer.TT_EOL: quit = potentialEmptyLine; potentialEmptyLine = true; s = null; break; case StreamTokenizer.TT_NUMBER: s = Integer.toString((int) tok.nval); potentialEmptyLine = false; break; case '\'': s = tok.sval; break; default: s = null; } // // Assume that alternate words on the line are // parameter and value, respectively. // if (s != null) { if (param == null) { param = s; } else { value = s; arglist.put(param, value); // log.debug("ARG: "+param+"="+value); param = null; } } } // // Now, we'll check the body. // if (potentialEmptyLine) { StringWriter out = new StringWriter(); FileUtil.copyContents(in, out); String bodyContent = out.toString(); if (bodyContent != null) { arglist.put(PARAM_BODY, bodyContent); } } return arglist; }
From source file:org.opencms.main.CmsShell.java
/** * Executes all commands read from the given input stream.<p> * // ww w .ja v a2 s. co m * @param fileInputStream a file input stream from which the commands are read */ private void executeCommands(FileInputStream fileInputStream) { try { LineNumberReader lnr = new LineNumberReader(new InputStreamReader(fileInputStream)); while (!m_exitCalled) { printPrompt(); String line = lnr.readLine(); if (line == null) { // if null the file has been read to the end try { Thread.sleep(500); } catch (Throwable t) { // noop } break; } if (line.trim().startsWith("#")) { System.out.println(line); continue; } StringReader reader = new StringReader(line); StreamTokenizer st = new StreamTokenizer(reader); st.eolIsSignificant(true); // put all tokens into a List List<String> parameters = new ArrayList<String>(); while (st.nextToken() != StreamTokenizer.TT_EOF) { if (st.ttype == StreamTokenizer.TT_NUMBER) { parameters.add(Integer.toString(new Double(st.nval).intValue())); } else { parameters.add(st.sval); } } reader.close(); // extract command and arguments if (parameters.size() == 0) { if (m_echo) { System.out.println(); } continue; } String command = parameters.get(0); parameters = parameters.subList(1, parameters.size()); // execute the command executeCommand(command, parameters); } } catch (Throwable t) { t.printStackTrace(System.err); } }
From source file:org.structr.core.function.Functions.java
public static Object evaluate(final ActionContext actionContext, final GraphObject entity, final String expression) throws FrameworkException { final String expressionWithoutNewlines = expression.replace('\n', ' '); final StreamTokenizer tokenizer = new StreamTokenizer(new StringReader(expressionWithoutNewlines)); tokenizer.eolIsSignificant(true); tokenizer.ordinaryChar('.'); tokenizer.wordChars('_', '_'); tokenizer.wordChars('.', '.'); tokenizer.wordChars('!', '!'); Expression root = new RootExpression(); Expression current = root;//from w w w . j a va 2s . co m Expression next = null; String lastToken = null; int token = 0; int level = 0; while (token != StreamTokenizer.TT_EOF) { token = nextToken(tokenizer); switch (token) { case StreamTokenizer.TT_EOF: break; case StreamTokenizer.TT_EOL: break; case StreamTokenizer.TT_NUMBER: if (current == null) { throw new FrameworkException(422, "Invalid expression: mismatched opening bracket before NUMBER"); } next = new ConstantExpression(tokenizer.nval); current.add(next); lastToken += "NUMBER"; break; case StreamTokenizer.TT_WORD: if (current == null) { throw new FrameworkException(422, "Invalid expression: mismatched opening bracket before " + tokenizer.sval); } next = checkReservedWords(tokenizer.sval); Expression previousExpression = current.getPrevious(); if (tokenizer.sval.startsWith(".") && previousExpression != null && previousExpression instanceof FunctionExpression && next instanceof ValueExpression) { final FunctionExpression previousFunctionExpression = (FunctionExpression) previousExpression; final ValueExpression valueExpression = (ValueExpression) next; current.replacePrevious( new FunctionValueExpression(previousFunctionExpression, valueExpression)); } else { current.add(next); } lastToken = tokenizer.sval; break; case '(': if (((current == null || current instanceof RootExpression) && next == null) || current == next) { // an additional bracket without a new function, // this can only be an execution group. next = new GroupExpression(); current.add(next); } current = next; lastToken += "("; level++; break; case ')': if (current == null) { throw new FrameworkException(422, "Invalid expression: mismatched opening bracket before " + lastToken); } current = current.getParent(); if (current == null) { throw new FrameworkException(422, "Invalid expression: mismatched closing bracket after " + lastToken); } lastToken += ")"; level--; break; case '[': // bind directly to the previous expression next = new ArrayExpression(); current.add(next); current = next; lastToken += "["; level++; break; case ']': if (current == null) { throw new FrameworkException(422, "Invalid expression: mismatched closing bracket before " + lastToken); } current = current.getParent(); if (current == null) { throw new FrameworkException(422, "Invalid expression: mismatched closing bracket after " + lastToken); } lastToken += "]"; level--; break; case ';': next = null; lastToken += ";"; break; case ',': next = current; lastToken += ","; break; default: if (current == null) { throw new FrameworkException(422, "Invalid expression: mismatched opening bracket before " + tokenizer.sval); } current.add(new ConstantExpression(tokenizer.sval)); lastToken = tokenizer.sval; } } if (level > 0) { throw new FrameworkException(422, "Invalid expression: mismatched closing bracket after " + lastToken); } return root.evaluate(actionContext, entity); }
From source file:org.yestech.jmlnitrate.transformation.inbound.BaseInboundTransformation.java
/** * Parses a Parameter Request String and return a array of the tokens in the * string. The default delimeters are ^ and ; * * @param rawRequest the Parameter Request * @return Array of the tokens/*ww w . j a v a 2 s .c om*/ * @throws Exception if an error happens */ private Object[] parseParameterRequest(String rawRequest) throws Exception { StreamTokenizer tokenStream = new StreamTokenizer( new BufferedReader(new StringReader(rawRequest), BUFFER_SIZE)); //reset the stream tokenStream.resetSyntax(); //configure tokens tokenStream.lowerCaseMode(false); tokenStream.eolIsSignificant(false); //add word chars tokenStream.wordChars(32, 58); tokenStream.wordChars(60, 93); tokenStream.wordChars(95, 126); //add <CR>\r <LF>\n tokenStream.wordChars(10, 10); tokenStream.wordChars(13, 13); //set ^ AND ; as delimeters to string tokens tokenStream.quoteChar(94); //removed ; //tokenStream.quoteChar(59); //set up the temp arraylist ArrayList tokens = new ArrayList(); int result = tokenStream.ttype; while (result != StreamTokenizer.TT_EOF) { result = tokenStream.nextToken(); switch (result) { case StreamTokenizer.TT_EOF: break; default: tokens.add(tokenStream.sval); break; } } return tokens.toArray(); }