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/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.utils;
import org.eclipse.jst.jsf.common.ui.internal.logging.Logger;
import org.eclipse.jst.pagedesigner.PDPlugin;
/**
* @author mengbo
*/
public class EntityMap {
private static Logger _log = PDPlugin.getLogger(EntityMap.class);
public static String translate(String s) {
char[] array = s.toCharArray();
StringBuffer buffer = new StringBuffer();
int posi = 0;
int len = array.length;
while (posi < len) {
if (array[posi] != '&') {
buffer.append(replaceBadEntity(array[posi++]));
continue;
}
// now array[posi] == '&'
int lastPosi = posi;
posi++;
if (posi < len && array[posi] == '#') {
posi++;
}
while (posi < len) {
if (!Character.isLetterOrDigit(array[posi]))
{
break;
}
posi++;
}
// now posi>=array.length or array[posi] is non letter or digit
String str = new String(array, lastPosi, posi - lastPosi);
if (translateEntity(str, buffer)) {
// translated, skip the ';'
if (posi < len && array[posi] == ';') {
posi++;
}
}
if (posi == len) {
return buffer.toString();
}
}
return buffer.toString();
}
/**
* Translate entity maps and compact whitespace. For heading and training
* space, will not trim, only compact (making multiple whitespace to become
* a single ' ' char).
*/
public static String translateAndCompact(String s) {
char[] array = s.toCharArray();
StringBuffer buffer = new StringBuffer();
int posi = 0;
int len = array.length;
while (posi < len) {
if (HTMLUtil.isHTMLWhitespace(array[posi])) {
while (++posi < len && HTMLUtil.isHTMLWhitespace(array[posi]))
{
// no body
// loop until we have find non-whitepspace or endof array
}
buffer.append(' ');
continue;
}
if (array[posi] != '&') {
buffer.append(replaceBadEntity(array[posi++]));
continue;
}
// now array[posi] == '&'
int lastPosi = posi;
posi++;
if (posi < len && array[posi] == '#') {
posi++;
}
while (posi < len) {
if (!Character.isLetterOrDigit(array[posi])) {
break;
}
posi++;
}
// now posi>=array.length or array[posi] is non letter or digit
String str = new String(array, lastPosi, posi - lastPosi);
if (translateEntity(str, buffer)) {
// translated, skip the ';'
if (posi < len && array[posi] == ';') {
posi++;
}
}
if (posi == len) {
return buffer.toString();
}
}
return buffer.toString();
}
/**
* if can translate will return true and append the result string if can't
* translate will return false and append original string
*
* @param s
* the form &#number or &letterordigit without the trailing ";"
*/
public static boolean translateEntity(String s, StringBuffer strBuf) {
int i = HTMLSpecialCharHelper.getSpecial(s); // HTMLSpecialCharHelper
// support without
// traning ';'
if (i != -1) {
strBuf.append((char) i);
return true;
}
if (s.length() > 2 && s.charAt(1) == '#') {
String number;
number = s.substring(2);
try {
int n;
if (number.length() > 0
&& (number.charAt(0) == 'x' || number.charAt(0) == 'X')) {
n = Integer.parseInt(number.substring(1), 16);
} else {
n = Integer.parseInt(number);
}
strBuf.append(replaceBadEntity((char) n));
return true;
} catch (Exception ex) {
// Error in integer formating
_log.info("Error occurred in integer formatting", ex); //$NON-NLS-1$
strBuf.append(s);
return false;
}
}
strBuf.append(s);
return false;
}
/**
* In HTML • is sometimes used (mostly based on CP 1252), but is
* illegal, because it does not exist in Unicode
*
* @param n
* @return
* @see http://www.w3.org/Talks/1999/0830-tutorial-unicode-mjd/slide27-0.html
*/
private static char replaceBadEntity(char n) {
if (n < 132 || n > 156)
return n;
switch (n) {
case 132:
return (char) 8222;
case 133:
return (char) 8230;
case 134:
return (char) 8224;
case 135:
return (char) 8225;
case 139:
return (char) 8249;
case 140:
return (char) 338;
case 145:
return (char) 8216;
case 146:
return (char) 8217;
case 147:
return (char) 8220;
case 148:
return (char) 8221;
case 149:
return (char) 8226;
case 151:
return (char) 8212;
case 153:
return (char) 8482;
case 155:
return (char) 8250;
case 156:
return (char) 339;
default:
return n;
}
}
}
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