Initial import.

TextToHTML.java

@@ -0,0 +1,183 @@
+/*
+ * @(#)TextToHTML.java
+ *
+ * Copyright (C) 2002-2003 by Erik C. Thauvin (erik@thauvin.net)
+ * All rights reserved.
+ *
+ * Donated to the Roller Weblogger project for publication under
+ * the terms of the Roller Software License.
+ */
+
+//package com.imacination.jtalk; 
+
+/**
+ * Converts/encodes text to HTML or XML.
+ *
+ * @author Erik C. Thauvin
+ *
+ * @created October 31, 2002
+ */
+public class TextToHTML
+{
+	/**
+	 * The main program usage.
+	 */
+	private static final String USAGE = "Usage: java " + TextToHTML.class.getName() + " [-xml] <text-to-convert>";
+
+	/**
+	 * Converts a character to HTML or XML entity.
+	 *
+	 * @param ch The character to convert.
+	 * @param xml Convert the character to XML if set to true.
+	 *
+	 * @return The converted string.
+	 */
+	public static final String charToHTML(char ch, boolean xml)
+	{
+		int c;
+
+		// Convert left bracket
+		if (ch == '<')
+		{
+			return ("&lt;");
+		}
+
+		// Convert left bracket
+		else if (ch == '>')
+		{
+			return ("&gt;");
+		}
+
+		// Convert ampersand
+		else if (ch == '&')
+		{
+			return ("&amp;");
+		}
+
+		// High-ASCII character
+		else if (ch >= 128)
+		{
+			c = ch;
+
+			return ("&#" + c + ';');
+		}
+
+		// Convert double quote
+		else if (xml && (ch == '"'))
+		{
+			return ("&quot;");
+		}
+
+		// Convert single quote
+		else if (xml && (ch == '\''))
+		{
+			return ("&#39;");
+		}
+
+		// No conversion
+		else
+		{
+			// Return character as string
+			return (String.valueOf(ch));
+		}
+	}
+
+	/**
+	 * The main program for the TextToHtml class.
+	 *
+	 * @param args The command line arguments.
+	 */
+	public static final void main(String[] args)
+	{
+		if (args.length > 0)
+		{
+			boolean xml = false;
+			int i = 0;
+
+			if (args[0].startsWith("-x"))
+			{
+				if (args.length == 1)
+				{
+					usage();
+				}
+
+				xml = true;
+				i++;
+			}
+
+			final StringBuffer cmdline = new StringBuffer();
+
+			for (; i < args.length; i++)
+			{
+				if (cmdline.length() != 0)
+				{
+					cmdline.append(' ');
+				}
+
+				cmdline.append(args[i]);
+			}
+
+			System.out.println(textToHTML(cmdline.toString(), xml));
+		}
+		else
+		{
+			usage();
+		}
+	}
+
+	/**
+	 * Converts a text string to HTML or XML entities.
+	 *
+	 * @param text The string to convert.
+	 * @param xml Convert the string to XML if set to true.
+	 *
+	 * @return The converted string.
+	 */
+	public static final String textToHTML(String text, boolean xml)
+	{
+		final StringBuffer html = new StringBuffer();
+
+		// Loop thru each characters of the text
+		for (int i = 0; i < text.length(); i++)
+		{
+			// Convert character to HTML/XML
+			html.append(charToHTML(text.charAt(i), xml));
+		}
+
+		// Return HTML/XML string
+		return html.toString();
+	}
+
+	/**
+	 * Converts a text string to HTML or XML entities.
+	 *
+	 * @param text The string to convert.
+	 *
+	 * @return The converted string.
+	 */
+	public static final String textToHTML(String text)
+	{
+		return textToHTML(text, false);
+	}
+
+	/**
+	 * Converts a text string to XML entities.
+	 *
+	 * @param text The string to convert.
+	 *
+	 * @return The converted string.
+	 */
+	public static final String textToXML(String text)
+	{
+		return textToHTML(text, true);
+	}
+
+	/**
+	 * Prints the usage and exits.
+	 */
+	private static final void usage()
+	{
+		System.err.println(USAGE);
+		System.exit(1);
+	}
+}