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package com.github.mathieudebrito.translator.utils;
import java.util.Hashtable;
/**
* Collection of static methods to convert special and extended
* characters into HTML entitities and vice versa.
* Copyright (c) 2004-2005 Tecnick.com S.r.l (www.tecnick.com) Via Ugo Foscolo
* n.19 - 09045 Quartu Sant'Elena (CA) - ITALY - www.tecnick.com -
* [email protected]
* Project homepage: http://htmlentities.sourceforge.net
* License: http://www.gnu.org/copyleft/lesser.html LGPL
*
* @author Nicola Asuni [www.tecnick.com].
* @version 1.0.004
*/
public class HTMLEntities {
/**
* Translation table for HTML entities.
* reference: W3C - Character entity references in HTML 4 [http://www.w3.org/TR/html401/sgml/entities.html].
*/
private static final Object[][] html_entities_table = {
{new String("Á"), new Integer(193)},
{new String("á"), new Integer(225)},
{new String("Â"), new Integer(194)},
{new String("â"), new Integer(226)},
{new String("´"), new Integer(180)},
{new String("Æ"), new Integer(198)},
{new String("æ"), new Integer(230)},
{new String("À"), new Integer(192)},
{new String("à"), new Integer(224)},
{new String("ℵ"), new Integer(8501)},
{new String("Α"), new Integer(913)},
{new String("α"), new Integer(945)},
{new String("&"), new Integer(38)},
{new String("∧"), new Integer(8743)},
{new String("∠"), new Integer(8736)},
{new String("Å"), new Integer(197)},
{new String("å"), new Integer(229)},
{new String("≈"), new Integer(8776)},
{new String("Ã"), new Integer(195)},
{new String("ã"), new Integer(227)},
{new String("Ä"), new Integer(196)},
{new String("ä"), new Integer(228)},
{new String("„"), new Integer(8222)},
{new String("Β"), new Integer(914)},
{new String("β"), new Integer(946)},
{new String("¦"), new Integer(166)},
{new String("•"), new Integer(8226)},
{new String("∩"), new Integer(8745)},
{new String("Ç"), new Integer(199)},
{new String("ç"), new Integer(231)},
{new String("¸"), new Integer(184)},
{new String("¢"), new Integer(162)},
{new String("Χ"), new Integer(935)},
{new String("χ"), new Integer(967)},
{new String("ˆ"), new Integer(710)},
{new String("♣"), new Integer(9827)},
{new String("≅"), new Integer(8773)},
{new String("©"), new Integer(169)},
{new String("↵"), new Integer(8629)},
{new String("∪"), new Integer(8746)},
{new String("¤"), new Integer(164)},
{new String("†"), new Integer(8224)},
{new String("‡"), new Integer(8225)},
{new String("↓"), new Integer(8595)},
{new String("⇓"), new Integer(8659)},
{new String("°"), new Integer(176)},
{new String("Δ"), new Integer(916)},
{new String("δ"), new Integer(948)},
{new String("♦"), new Integer(9830)},
{new String("÷"), new Integer(247)},
{new String("É"), new Integer(201)},
{new String("é"), new Integer(233)},
{new String("Ê"), new Integer(202)},
{new String("ê"), new Integer(234)},
{new String("È"), new Integer(200)},
{new String("è"), new Integer(232)},
{new String("∅"), new Integer(8709)},
{new String(" "), new Integer(8195)},
{new String(" "), new Integer(8194)},
{new String("Ε"), new Integer(917)},
{new String("ε"), new Integer(949)},
{new String("≡"), new Integer(8801)},
{new String("Η"), new Integer(919)},
{new String("η"), new Integer(951)},
{new String("Ð"), new Integer(208)},
{new String("ð"), new Integer(240)},
{new String("Ë"), new Integer(203)},
{new String("ë"), new Integer(235)},
{new String("€"), new Integer(8364)},
{new String("∃"), new Integer(8707)},
{new String("ƒ"), new Integer(402)},
{new String("∀"), new Integer(8704)},
{new String("½"), new Integer(189)},
{new String("¼"), new Integer(188)},
{new String("¾"), new Integer(190)},
{new String("⁄"), new Integer(8260)},
{new String("Γ"), new Integer(915)},
{new String("γ"), new Integer(947)},
{new String("≥"), new Integer(8805)},
{new String("↔"), new Integer(8596)},
{new String("⇔"), new Integer(8660)},
{new String("♥"), new Integer(9829)},
{new String("…"), new Integer(8230)},
{new String("Í"), new Integer(205)},
{new String("í"), new Integer(237)},
{new String("Î"), new Integer(206)},
{new String("î"), new Integer(238)},
{new String("¡"), new Integer(161)},
{new String("Ì"), new Integer(204)},
{new String("ì"), new Integer(236)},
{new String("ℑ"), new Integer(8465)},
{new String("∞"), new Integer(8734)},
{new String("∫"), new Integer(8747)},
{new String("Ι"), new Integer(921)},
{new String("ι"), new Integer(953)},
{new String("¿"), new Integer(191)},
{new String("∈"), new Integer(8712)},
{new String("Ï"), new Integer(207)},
{new String("ï"), new Integer(239)},
{new String("Κ"), new Integer(922)},
{new String("κ"), new Integer(954)},
{new String("Λ"), new Integer(923)},
{new String("λ"), new Integer(955)},
{new String("⟨"), new Integer(9001)},
{new String("«"), new Integer(171)},
{new String("←"), new Integer(8592)},
{new String("⇐"), new Integer(8656)},
{new String("⌈"), new Integer(8968)},
{new String("“"), new Integer(8220)},
{new String("≤"), new Integer(8804)},
{new String("⌊"), new Integer(8970)},
{new String("∗"), new Integer(8727)},
{new String("◊"), new Integer(9674)},
{new String(""), new Integer(8206)},
{new String("‹"), new Integer(8249)},
{new String("‘"), new Integer(8216)},
{new String("¯"), new Integer(175)},
{new String("—"), new Integer(8212)},
{new String("µ"), new Integer(181)},
{new String("·"), new Integer(183)},
{new String("−"), new Integer(8722)},
{new String("Μ"), new Integer(924)},
{new String("μ"), new Integer(956)},
{new String("∇"), new Integer(8711)},
{new String(" "), new Integer(160)},
{new String("–"), new Integer(8211)},
{new String("≠"), new Integer(8800)},
{new String("∋"), new Integer(8715)},
{new String("¬"), new Integer(172)},
{new String("∉"), new Integer(8713)},
{new String("⊄"), new Integer(8836)},
{new String("Ñ"), new Integer(209)},
{new String("ñ"), new Integer(241)},
{new String("Ν"), new Integer(925)},
{new String("ν"), new Integer(957)},
{new String("Ó"), new Integer(211)},
{new String("ó"), new Integer(243)},
{new String("Ô"), new Integer(212)},
{new String("ô"), new Integer(244)},
{new String("Œ"), new Integer(338)},
{new String("œ"), new Integer(339)},
{new String("Ò"), new Integer(210)},
{new String("ò"), new Integer(242)},
{new String("‾"), new Integer(8254)},
{new String("Ω"), new Integer(937)},
{new String("ω"), new Integer(969)},
{new String("Ο"), new Integer(927)},
{new String("ο"), new Integer(959)},
{new String("⊕"), new Integer(8853)},
{new String("∨"), new Integer(8744)},
{new String("ª"), new Integer(170)},
{new String("º"), new Integer(186)},
{new String("Ø"), new Integer(216)},
{new String("ø"), new Integer(248)},
{new String("Õ"), new Integer(213)},
{new String("õ"), new Integer(245)},
{new String("⊗"), new Integer(8855)},
{new String("Ö"), new Integer(214)},
{new String("ö"), new Integer(246)},
{new String("¶"), new Integer(182)},
{new String("∂"), new Integer(8706)},
{new String("‰"), new Integer(8240)},
{new String("⊥"), new Integer(8869)},
{new String("Φ"), new Integer(934)},
{new String("φ"), new Integer(966)},
{new String("Π"), new Integer(928)},
{new String("π"), new Integer(960)},
{new String("ϖ"), new Integer(982)},
{new String("±"), new Integer(177)},
{new String("£"), new Integer(163)},
{new String("′"), new Integer(8242)},
{new String("″"), new Integer(8243)},
{new String("∏"), new Integer(8719)},
{new String("∝"), new Integer(8733)},
{new String("Ψ"), new Integer(936)},
{new String("ψ"), new Integer(968)},
{new String("""), new Integer(34)},
{new String("√"), new Integer(8730)},
{new String("⟩"), new Integer(9002)},
{new String("»"), new Integer(187)},
{new String("→"), new Integer(8594)},
{new String("⇒"), new Integer(8658)},
{new String("⌉"), new Integer(8969)},
{new String("”"), new Integer(8221)},
{new String("ℜ"), new Integer(8476)},
{new String("®"), new Integer(174)},
{new String("⌋"), new Integer(8971)},
{new String("Ρ"), new Integer(929)},
{new String("ρ"), new Integer(961)},
{new String(""), new Integer(8207)},
{new String("›"), new Integer(8250)},
{new String("’"), new Integer(8217)},
{new String("‚"), new Integer(8218)},
{new String("Š"), new Integer(352)},
{new String("š"), new Integer(353)},
{new String("⋅"), new Integer(8901)},
{new String("§"), new Integer(167)},
{new String(""), new Integer(173)},
{new String("Σ"), new Integer(931)},
{new String("σ"), new Integer(963)},
{new String("ς"), new Integer(962)},
{new String("∼"), new Integer(8764)},
{new String("♠"), new Integer(9824)},
{new String("⊂"), new Integer(8834)},
{new String("⊆"), new Integer(8838)},
{new String("∑"), new Integer(8721)},
{new String("¹"), new Integer(185)},
{new String("²"), new Integer(178)},
{new String("³"), new Integer(179)},
{new String("⊃"), new Integer(8835)},
{new String("⊇"), new Integer(8839)},
{new String("ß"), new Integer(223)},
{new String("Τ"), new Integer(932)},
{new String("τ"), new Integer(964)},
{new String("∴"), new Integer(8756)},
{new String("Θ"), new Integer(920)},
{new String("θ"), new Integer(952)},
{new String("ϑ"), new Integer(977)},
{new String(" "), new Integer(8201)},
{new String("Þ"), new Integer(222)},
{new String("þ"), new Integer(254)},
{new String("˜"), new Integer(732)},
{new String("×"), new Integer(215)},
{new String("™"), new Integer(8482)},
{new String("Ú"), new Integer(218)},
{new String("ú"), new Integer(250)},
{new String("↑"), new Integer(8593)},
{new String("⇑"), new Integer(8657)},
{new String("Û"), new Integer(219)},
{new String("û"), new Integer(251)},
{new String("Ù"), new Integer(217)},
{new String("ù"), new Integer(249)},
{new String("¨"), new Integer(168)},
{new String("ϒ"), new Integer(978)},
{new String("Υ"), new Integer(933)},
{new String("υ"), new Integer(965)},
{new String("Ü"), new Integer(220)},
{new String("ü"), new Integer(252)},
{new String("℘"), new Integer(8472)},
{new String("Ξ"), new Integer(926)},
{new String("ξ"), new Integer(958)},
{new String("Ý"), new Integer(221)},
{new String("ý"), new Integer(253)},
{new String("¥"), new Integer(165)},
{new String("ÿ"), new Integer(255)},
{new String("Ÿ"), new Integer(376)},
{new String("Ζ"), new Integer(918)},
{new String("ζ"), new Integer(950)},
{new String(""), new Integer(8205)},
{new String(""), new Integer(8204)}};
/**
* Map to convert extended characters in html entities.
*/
private static final Hashtable htmlentities_map = new Hashtable();
/**
* Map to convert html entities in exteden characters.
*/
private static final Hashtable unhtmlentities_map = new Hashtable();
//==============================================================================
// METHODS
//==============================================================================
/**
* Initialize HTML translation maps.
*/
public HTMLEntities() {
initializeEntitiesTables();
}
/**
* Initialize HTML entities table.
*/
private static void initializeEntitiesTables() {
// initialize html translation maps
for (int i = 0; i < html_entities_table.length; ++i) {
htmlentities_map.put(html_entities_table[i][1],
html_entities_table[i][0]);
unhtmlentities_map.put(html_entities_table[i][0],
html_entities_table[i][1]);
}
}
/**
* Get the html entities translation table.
*
* @return translation table
*/
public static Object[][] getEntitiesTable() {
return html_entities_table;
}
/**
* Convert special and extended characters into HTML entitities.
*
* @param str input string
* @return formatted string
* @see #unhtmlentities(String)
*/
public static String htmlentities(String str) {
if (str == null) {
return "";
}
//initialize html translation maps table the first time is called
if (htmlentities_map.isEmpty()) {
initializeEntitiesTables();
}
StringBuffer buf = new StringBuffer(); //the otput string buffer
for (int i = 0; i < str.length(); ++i) {
char ch = str.charAt(i);
String entity = (String) htmlentities_map.get(new Integer((int) ch)); //get equivalent html entity
if (entity == null) { //if entity has not been found
if (((int) ch) > 128) { //check if is an extended character
buf.append("&#" + ((int) ch) + ";"); //convert extended character
} else {
buf.append(ch); //append the character as is
}
} else {
buf.append(entity); //append the html entity
}
}
return buf.toString();
}
/**
* Convert HTML entities to special and extended unicode characters
* equivalents.
*
* @param str input string
* @return formatted string
* @see #htmlentities(String)
*/
public static String unhtmlentities(String str) {
//initialize html translation maps table the first time is called
if (htmlentities_map.isEmpty()) {
initializeEntitiesTables();
}
StringBuffer buf = new StringBuffer();
for (int i = 0; i < str.length(); ++i) {
char ch = str.charAt(i);
if (ch == '&') {
int semi = str.indexOf(';', i + 1);
if ((semi == -1) || ((semi - i) > 7)) {
buf.append(ch);
continue;
}
String entity = str.substring(i, semi + 1);
Integer iso;
if (entity.charAt(1) == ' ') {
buf.append(ch);
continue;
}
if (entity.charAt(1) == '#') {
if (entity.charAt(2) == 'x') {
iso = new Integer(Integer.parseInt(entity.substring(3, entity.length() - 1), 16));
} else {
iso = new Integer(entity.substring(2, entity.length() - 1));
}
} else {
iso = (Integer) unhtmlentities_map.get(entity);
}
if (iso == null) {
buf.append(entity);
} else {
buf.append((char) (iso.intValue()));
}
i = semi;
} else {
buf.append(ch);
}
}
return buf.toString();
}
// methods to convert special characters
/**
* Replace single quotes characters with HTML entities.
*
* @param str the input string
* @return string with replaced single quotes
*/
public static String htmlSingleQuotes(String str) {
str = str.replaceAll("[\']", "’");
str = str.replaceAll("'", "’");
str = str.replaceAll("‘", "’");
str = str.replaceAll("’", "’");
return str;
}
/**
* Replace single quotes HTML entities with equivalent character.
*
* @param str the input string
* @return string with replaced single quotes
*/
public static String unhtmlSingleQuotes(String str) {
return str.replaceAll("’", "\'");
}
/**
* Replace double quotes characters with HTML entities.
*
* @param str the input string
* @return string with replaced double quotes
*/
public static String htmlDoubleQuotes(String str) {
str = str.replaceAll("[\"]", """);
str = str.replaceAll("“", """);
str = str.replaceAll("”", """);
return str;
}
/**
* Replace single quotes HTML entities with equivalent character.
*
* @param str the input string
* @return string with replaced single quotes
*/
public static String unhtmlDoubleQuotes(String str) {
return str.replaceAll(""", "\"");
}
/**
* Replace single and double quotes characters with HTML entities.
*
* @param str the input string
* @return string with replaced quotes
*/
public static String htmlQuotes(String str) {
str = htmlDoubleQuotes(str); //convert double quotes
str = htmlSingleQuotes(str); //convert single quotes
return str;
}
/**
* Replace single and double quotes HTML entities with equivalent characters.
*
* @param str the input string
* @return string with replaced quotes
*/
public static String unhtmlQuotes(String str) {
str = unhtmlDoubleQuotes(str); //convert double quotes
str = unhtmlSingleQuotes(str); //convert single quotes
return str;
}
/**
* Replace < > characters with < > entities.
*
* @param str the input string
* @return string with replaced characters
*/
public static String htmlAngleBrackets(String str) {
str = str.replaceAll("<", "<");
str = str.replaceAll(">", ">");
return str;
}
/**
* Replace < > entities with < > characters.
*
* @param str the input string
* @return string with replaced entities
*/
public static String unhtmlAngleBrackets(String str) {
str = str.replaceAll("<", "<");
str = str.replaceAll(">", ">");
return str;
}
/**
* Replace & characters with & HTML entities.
*
* @param str the input string
* @return string with replaced characters
*/
public static String htmlAmpersand(String str) {
return str.replaceAll("&", "&");
}
/**
* Replace & HTML entities with & characters.
*
* @param str the input string
* @return string with replaced entities
*/
public static String unhtmlAmpersand(String str) {
return str.replaceAll("&", "&");
}
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