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Java Source | 1998-04-08 | 5.0 KB | 138 lines |
- /* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- *
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- package netscape.test.plugin.composer;
-
- import java.io.*;
- import netscape.plugin.composer.*;
- import netscape.plugin.composer.io.*;
- import java.awt.Color;
-
- /** Sample Plugin that implements Netscape-style small caps.
- * Shows how to do low-level parsing of html.
- */
-
- public class SmallCaps extends Plugin {
- /** Test the plugin. Not required for normal operation of the plugin.
- * You can use this to run the plugin from the command line:
- * java -classpath <your-class-path> <your-plugin-name> args...
- * where args... are passed on to the Test class.
- * You can remove this code before shipping your plugin.
- */
- static public void main(String[] args) {
- Test.perform(args, new SmallCaps());
- }
- /** Get the human readable name of the plugin. Defaults to the name of the plugin class.
- * @return the human readable name of the plugin.
- */
- public String getName()
- {
- return "Small Caps";
- }
-
- /** Get the human readable category of the plugin. Defaults to the name of the plugin class.
- * @return the human readable category of the plugin.
- */
- public String getCategory()
- {
- return "Character Tools";
- }
-
- /** Get the human readable hint for the plugin. This is a one-sentence description of
- * what the plugin does. Defaults to the name of the plugin class.
- * @return the human readable hint for the plugin.
- */
- public String getHint()
- {
- return "Capitalizes selected text like the Netscape Home Page.";
- }
-
- /** Perform the action of the plugin. This plugin implements Netscape-style small caps.
- *
- * @param document the current document.
- */
- public boolean perform(Document document) throws IOException{
- // Get the output stream to hold the new document text.
- PrintWriter out = new PrintWriter(document.getOutput());
- // Create a lexical stream to tokenize the old document text.
- LexicalStream in = new LexicalStream(new SelectedHTMLReader(document.getInput(), out));
- // Keep track of whether or not we are in the selected text.
- // At the beginning of the document we're outside the selection.
- // After we encounter the start-selection comment, we're inside
- // the selection.
- // After we encounter the end-selection comment, we're outside
- // the selection again.
- boolean inSelection = false;
- for(;;){
- // Get the next token of the document.
- Token token = in.next();
- if ( token == null ) break; // Null means we've finished the document.
- else if (token instanceof Comment ) {
- Comment comment = (Comment) token;
- if ( comment.isSelectionStart() ){
- inSelection = true;
- }
- else if (comment.isSelectionEnd() ){
- inSelection = false;
- }
- }
- else if ( inSelection ) {
- if ( token instanceof Text ) {
- Text text = (Text) token;
- smallCaps(text.getText(), out);
- continue; // Don't need to output the original token
- }
- }
- out.print(token);
- }
- out.close();
- return true;
- }
-
- /** Convert a string to small caps.
- */
- private void smallCaps(String string, PrintWriter out){
- int len = string.length();
- int state = 1;
- Tag bigTag = new Tag("font");
- bigTag.addAttribute("SIZE", "+2");
- Tag fontEnd = new Tag("font", false);
- for(int i = 0; i < len; i++ ){
- char c = string.charAt(i);
- c = Character.toUpperCase(c);
- switch ( state ) {
- case 0: out.print(c);
- if ( c == ' ' ) {
- state = 1;
- }
- break;
- case 1: if ( c != ' ' ) {
- out.print(bigTag);
- out.print(c);
- out.print(fontEnd);
- state = 0;
- }
- else {
- out.print(c);
- }
- break;
- }
- }
- }
- }
-