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TengwarTranslatorLibrary
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Andrew Lalis 2017-06-30 14:06:15 +02:00 committed by Andrew Lalis
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26
pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.github.andrewlalis</groupId>
<artifactId>TengwarTranslator</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
<packaging>jar</packaging>
</project>

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src/main/java/Translator.java Normal file
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import java.util.*;
/**
* Created by Andrew's Computer on 23-Apr-17.
*/
public class Translator {
//Consonant variables.
private static final char B = 'w';
private static final char C = 'c';
private static final char D = '2';
private static final char F = 'e';
private static final char G = 'x';
private static final char H = '9';
private static final char J = 's';
private static final char K = 'z';
private static final char L = 'j';
private static final char M = 't';
private static final char N = '5';
private static final char P = 'q';
private static final char Q = 'n';
private static final char R = '6';
private static final char S = '8';
private static final char T = '1';
private static final char V = 'r';
private static final char W = 'y';
private static final char X = '¦';
private static final char Y = 'h';
private static final char Z = 'k';
//Compound chars.
private static final char TH = '3';
private static final char CH = 'a';
private static final char SH = 'd';
private static final char ZH = 'f';
private static final char GH = 'v';
private static final char WH = 'o';
private static final char CK = 'Z';
private static final char NY = 'g';
private static final char NG = 'b';
private static final char RD = 'u';
private static final char LD = 'm';
//Vowels.
private static final char A_1 = '#';
private static final char A_2 = 'E';
private static final char A_3 = 'D';
private static final char A_4 = 'C';
private static final char E_1 = '$';
private static final char E_2 = 'R';
private static final char E_3 = 'F';
private static final char E_4 = 'V';
private static final char E_UNDER_1 = 'È';
private static final char E_UNDER_2 = 'É';
private static final char E_UNDER_3 = 'Ê';
private static final char E_UNDER_4 = 'Ë';
private static final char E_LAMBE = 'L';
private static final char I_1 = '%';
private static final char I_2 = 'T';
private static final char I_3 = 'G';
private static final char I_4 = 'B';
private static final char O_1 = '^';
private static final char O_2 = 'Y';
private static final char O_3 = 'H';
private static final char O_4 = 'N';
private static final char U_1 = '&';
private static final char U_2 = 'U';
private static final char U_3 = 'J';
private static final char U_4 = 'M';
//Carriers.
private static final char CARRIER_LONG = '~';
private static final char CARRIER_SHORT = '`';
//Numbers.
private static final char NUMBER_0 = 'ð';
private static final char NUMBER_1 = 'ñ';
private static final char NUMBER_2 = 'ò';
private static final char NUMBER_3 = 'ó';
private static final char NUMBER_4 = 'ô';
private static final char NUMBER_5 = 'õ';
private static final char NUMBER_6 = 'ö';
private static final char NUMBER_7 = '÷';
private static final char NUMBER_8 = 'ø';
private static final char NUMBER_9 = 'ù';
//Punctuation
private static final char PERIOD = '-';
private static final char COMMA = '=';
private static final char EXCLAMATION = 'Á';
private static final char QUESTION = 'À';
private static final char SEMICOLON = 'Ã';
private static final char COLON = 'ˆ';
private static final char PARENTHESES_RIGHT = 'œ';
private static final char PARENTHESES_LEFT = 'Œ';
private static final char QUOTE = '«';
private static final char APOSTROPHE = '±';
private static final char SPACE = ' ';
private static final char EQUALS = '¬';
private static final char MINUS = '\\';
private static final char NEWLINE = '\n';
//Doubles Bars
private static final char BAR_SHORT_TOP = '[';
private static final char BAR_SHORT_BOTTOM = '\'';
private static final char BAR_LONG_TOP = '{';
private static final char BAR_LONG_BOTTOM = '"';
//Alternate forms.
private static final char S_ALT = 'i';
private static final char Z_ALT = ',';
private static final char W_ALT = '.';
private static final char R_ALT = '7';
private static final char Y_ALT = 'l';
//S-Curls
private static final char S_CURL_1 = '+';
private static final char S_CURL_2 = '_';
private static final char S_CURL_3 = '¢';
//Mappings of english chars to tengwars.
private static final Map<Character, Character> consonantChars = new HashMap<>();
static {
consonantChars.put('b', B);
consonantChars.put('c', C);
consonantChars.put('d', D);
consonantChars.put('f', F);
consonantChars.put('g', G);
consonantChars.put('h', H);
consonantChars.put('j', J);
consonantChars.put('k', K);
consonantChars.put('l', L);
consonantChars.put('m', M);
consonantChars.put('n', N);
consonantChars.put('p', P);
consonantChars.put('q', Q);
consonantChars.put('r', R);
consonantChars.put('s', S);
consonantChars.put('t', T);
consonantChars.put('v', V);
consonantChars.put('w', W);
consonantChars.put('x', X);
consonantChars.put('y', Y);
consonantChars.put('z', Z);
}
//Mapping for compound chars.
private static final Map<String, Character> compoundChars = new HashMap<>();
static {
compoundChars.put("th", TH);
compoundChars.put("ch", CH);
compoundChars.put("sh", SH);
compoundChars.put("zh", ZH);
compoundChars.put("gh", GH);
compoundChars.put("wh", WH);
compoundChars.put("ck", CK);
compoundChars.put("ny", NY);
compoundChars.put("ng", NG);
compoundChars.put("rd", RD);
compoundChars.put("ld", LD);
}
//Mapping consonants to alternates.
private static final Map<Character, Character> alternateChars = new HashMap<>();
static {
alternateChars.put('s', S_ALT);
alternateChars.put('z', Z_ALT);
alternateChars.put('w', W_ALT);
alternateChars.put('y', Y_ALT);
}
//Mapping for numbers. No vowel size needed.
private static final Map<Character, Character> numberChars = new HashMap<>();
static {
numberChars.put('0', NUMBER_0);
numberChars.put('1', NUMBER_1);
numberChars.put('2', NUMBER_2);
numberChars.put('3', NUMBER_3);
numberChars.put('4', NUMBER_4);
numberChars.put('5', NUMBER_5);
numberChars.put('6', NUMBER_6);
numberChars.put('7', NUMBER_7);
numberChars.put('8', NUMBER_8);
numberChars.put('9', NUMBER_9);
}
//Mapping for punctuation. No vowel size needed.
private static final Map<Character, Character> punctuationChars = new HashMap<>();
static {
punctuationChars.put('.', PERIOD);
punctuationChars.put(',', COMMA);
punctuationChars.put('!', EXCLAMATION);
punctuationChars.put('?', QUESTION);
punctuationChars.put(';', SEMICOLON);
punctuationChars.put(':', COLON);
punctuationChars.put(')', PARENTHESES_RIGHT);
punctuationChars.put('(', PARENTHESES_LEFT);
punctuationChars.put('"', QUOTE);
punctuationChars.put('\'', APOSTROPHE);
punctuationChars.put(' ', SPACE);
punctuationChars.put('=', EQUALS);
punctuationChars.put('-', MINUS);
punctuationChars.put('\n', NEWLINE);
}
//Mapping for vowels. Each value is an array, with A_1 to A_4 in indices 0 - 3.
private static final Map<Character, Character[]> vowelChars = new HashMap<>();
static {
vowelChars.put('a', new Character[]{A_1, A_2, A_3, A_4});
vowelChars.put('e', new Character[]{E_1, E_2, E_3, E_4, E_UNDER_1, E_UNDER_2, E_UNDER_3, E_UNDER_4});
vowelChars.put('i', new Character[]{I_1, I_2, I_3, I_4});
vowelChars.put('o', new Character[]{O_1, O_2, O_3, O_4});
vowelChars.put('u', new Character[]{U_1, U_2, U_3, U_4});
}
//For the characters which allow a vowel above them, this tells which vowel type to use.
private static final Map<Character, Integer> charSizes = new HashMap<>();
static {
charSizes.put(B, 1);
charSizes.put(C, 2);
charSizes.put(D, 1);
charSizes.put(F, 3);
charSizes.put(G, 1);
charSizes.put(H, 3);
charSizes.put(J, 1);
charSizes.put(K, 2);
charSizes.put(L, 1);
charSizes.put(M, 1);
charSizes.put(N, 1);
charSizes.put(P, 2);
charSizes.put(Q, 2);
charSizes.put(R, 2);
charSizes.put(S, 1);
charSizes.put(T, 2);
charSizes.put(V, 1);
charSizes.put(W, 2);
charSizes.put(X, 1);
charSizes.put(Y, 2);
charSizes.put(Z, 1);
charSizes.put(S_ALT, 2);
charSizes.put(Z_ALT, 2);
charSizes.put(W_ALT, 2);
charSizes.put(R_ALT, 2);
charSizes.put(Y_ALT, 2);
charSizes.put(TH, 3);
charSizes.put(CH, 2);
charSizes.put(SH, 2);
charSizes.put(ZH, 1);
charSizes.put(GH, 1);
charSizes.put(WH, 1);
charSizes.put(CK, 1);
charSizes.put(NY, 1);
charSizes.put(NG, 1);
charSizes.put(RD, 2);
charSizes.put(LD, 1);
charSizes.put(CARRIER_LONG, 4);
charSizes.put(CARRIER_SHORT, 4);
}
//Sets bar preferences, 0 for long top, 1 for long bottom, 2 for short top, 3 for short bottom.
private static final Map<Character, Integer> barSizes = new HashMap<>();
static {
barSizes.put(B, 0);
barSizes.put(C, 2);
barSizes.put(D, 1);
barSizes.put(F, 2);
barSizes.put(G, 1);
barSizes.put(H, 1);
barSizes.put(J, 0);
barSizes.put(K, 2);
barSizes.put(L, 1);
barSizes.put(M, 0);
barSizes.put(N, 0);
barSizes.put(P, 3);
barSizes.put(Q, 3);
barSizes.put(R, 2);
barSizes.put(S, 1);
barSizes.put(T, 3);
barSizes.put(V, 0);
barSizes.put(W, 2);
barSizes.put(X, 0);
barSizes.put(Y, 2);
barSizes.put(Z, 1);
barSizes.put(S_ALT, 0);
barSizes.put(Z_ALT, 1);
barSizes.put(W_ALT, 2);
barSizes.put(R_ALT, 2);
barSizes.put(Y_ALT, 2);
}
//List of s-curls.
private static final List<Character> sCurls = new ArrayList<>();
static{
sCurls.add(S_CURL_1);
sCurls.add(S_CURL_2);
sCurls.add(S_CURL_3);
}
//List of carriers.
private static final List<Character> carriers = new ArrayList<>();
static {
carriers.add(CARRIER_LONG);
carriers.add(CARRIER_SHORT);
}
//List of bars.
private static final List<Character> bars = new ArrayList<>();
static {
bars.add(BAR_LONG_TOP);
bars.add(BAR_LONG_BOTTOM);
bars.add(BAR_SHORT_TOP);
bars.add(BAR_SHORT_BOTTOM);
}
/**
* Gives the properly sized vowel for a particular tengwar character.
* Uses indices from the charSizes map to find the proper character.
* @param tengwarChar tengwar char to be checked.
* @param englishVowel the english vowel type to be returned.
* @return tengwar vowel char corresponding to the letter, or default of left-most.
*/
private static char getAppropriateVowel(char tengwarChar, char englishVowel){
if (charSizes.containsKey(tengwarChar)){
return vowelChars.get(englishVowel)[charSizes.get(tengwarChar)-1];
} else {
return vowelChars.get(englishVowel)[0];
}
}
/**
* Gives the properly sized silent e vowel for a particular character.
* @param tengwarChar tengwar char to be checked.
* @return silent e vowel corresponding to the letter, or default of left-most.
*/
private static char getAppropriateSilentE(char tengwarChar){
if (tengwarChar == L){
return E_LAMBE;
}
if (charSizes.containsKey(tengwarChar)){
return vowelChars.get('e')[charSizes.get(tengwarChar)+3];
} else {
return vowelChars.get('e')[4];
}
}
/**
* Determines if a character is a vowel.
* @param c english character.
* @return true if vowel, false if not.
*/
private static boolean isVowel(char c){
return (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u');
}
/**
* Determines if a tengwar character is a vowel.
* @param c tengwar char to check.
* @return true if vowel, false if not.
*/
private static boolean isVowelTengwar(char c){
for (Character[] ch : vowelChars.values()){
for (char cha : ch){
if (cha == c)
return true;
}
}
return false;
}
/**
* Returns the english vowel representation of a tengwar vowel.
* @param tengwarVowel The tengwar vowel to decipher.
* @return english vowel char.
*/
private static char getEnglishVowel(char tengwarVowel){
if (!isVowelTengwar(tengwarVowel)){
return 0;
}
for (Character[] ch : vowelChars.values()){
for (char cha : ch){
if (cha == tengwarVowel) {
return getKeyByValue(vowelChars, ch);
}
}
}
return 0;
}
/**
* Determines if a tengwar char is a silent E.
* @param tengwarChar the tengwar char to evaluate.
* @return True if it is a silent E, false otherwise.
*/
private static boolean isSilentE(char tengwarChar){
return tengwarChar == E_UNDER_1
|| tengwarChar == E_UNDER_2
|| tengwarChar == E_UNDER_3
|| tengwarChar == E_UNDER_4
|| tengwarChar == E_LAMBE;
}
/**
* Returns a character or string that is a literal translation from tengwar.
* @param tengwarChar the tengwar char to translate.
* @return english representation of the tengwar.
*/
private static String getEnglishLiteral(char tengwarChar){
if (consonantChars.containsValue(tengwarChar)){
return getKeyByValue(consonantChars, tengwarChar).toString();
} else if (compoundChars.containsValue(tengwarChar)){
return getKeyByValue(compoundChars, tengwarChar);
} else if (alternateChars.containsValue(tengwarChar)) {
return getKeyByValue(alternateChars, tengwarChar).toString();
} else if (tengwarChar == R_ALT){
return "r";
} else if (numberChars.containsValue(tengwarChar)){
return getKeyByValue(numberChars, tengwarChar).toString();
} else if (punctuationChars.containsValue(tengwarChar)){
return getKeyByValue(punctuationChars, tengwarChar).toString();
}
return null;
}
/**
* Returns the key for a specified value in a 1 to 1 map.
* @param map The 1 to 1 map to use.
* @param value Value to return the key of.
* @param <T> Key type of the map.
* @param <E> Value type of the map.
* @return Key associated with value.
*/
private static <T, E> T getKeyByValue(Map<T, E> map, E value) {
for (Map.Entry<T, E> entry : map.entrySet()) {
if (Objects.equals(value, entry.getValue())) {
return entry.getKey();
}
}
return null;
}
/**
* Translate an english string to tengwar.
* @param englishString english string.
* @return tengwar string.
*/
public static String translateToTengwar(String englishString){
StringBuilder result = new StringBuilder(englishString.length());
String input = englishString.toLowerCase().trim();
for (int i = 0; i < input.length(); i++){
//Attempt to get previous, current, and next char.
char currentChar = input.charAt(i);
char nextChar = 0;
try{
nextChar = input.charAt(i+1);
} catch (IndexOutOfBoundsException e){
//Do nothing, since this may happen.
}
//Test if the current char is a vowel.
if (isVowel(currentChar)){
if (consonantChars.containsKey(nextChar)){
//If the next character can have a vowel placed on it, then go here.
//Temporary storage for the character that will be added before the vowel.
char tengwarCharToBeAdded;
boolean needsBar = false;
char secondNextChar = 0;
//Check if the next char is a compound first.
try{
secondNextChar = input.charAt(i+2);
} catch (IndexOutOfBoundsException e){
//Do nothing. second next char doesn't exist.
}
if (compoundChars.containsKey(""+nextChar+secondNextChar)) {
tengwarCharToBeAdded = compoundChars.get("" + nextChar + secondNextChar);
i++;
} else if (alternateChars.containsKey(nextChar)){
//Not a compound, so now check for alternates.
tengwarCharToBeAdded = alternateChars.get(nextChar);
} else if (nextChar == 'r' && isVowel(secondNextChar)){
//Special case if there is an r next, with a vowel after it.
tengwarCharToBeAdded = R_ALT;
} else {
//Finally, add a literal consonant.
tengwarCharToBeAdded = consonantChars.get(nextChar);
}
//Check to see if a bar should be added, and the next character skipped.
if (nextChar == secondNextChar){
//Bar should be added.
needsBar = true;
i++;
}
result.append(tengwarCharToBeAdded);
result.append(getAppropriateVowel(tengwarCharToBeAdded, currentChar));
//Bar gets added after the vowel.
if (needsBar)
result.append(bars.get(barSizes.get(tengwarCharToBeAdded)));
i++;
} else {
//The next character is not able to have a vowel placed on it, so use a carrier.
if (currentChar == 'e' && (i == input.length()-1 || punctuationChars.containsKey(nextChar))){
//Use a silent e because the next char is a punctuation or the end of the string.
try{
result.append(getAppropriateSilentE(result.charAt(result.length()-1)));
} catch (IndexOutOfBoundsException e){
result.append(E_UNDER_1);
}
continue;
}
if (currentChar == nextChar){
//Add a long carrier, and skip the next character, because it is the same.
result.append(CARRIER_LONG);
result.append(getAppropriateVowel(CARRIER_LONG, currentChar));
i++;
} else {
//Add a short carrier.
result.append(CARRIER_SHORT);
result.append(getAppropriateVowel(CARRIER_SHORT, currentChar));
}
}
//Done with vowel checking.
} else {
//Character is not a vowel, so consonant, compound, number, or punctuation.
if (compoundChars.containsKey(""+currentChar+nextChar)){
//current char and next char are a compound, so add it and skip the next iteration.
result.append(compoundChars.get(""+currentChar+nextChar));
i++;
} else if (isVowel(nextChar) && currentChar == 'r') {
//Special case for r vowel.
result.append(R_ALT);
} else {
//Character can be literally translated from numbers or consonants or punctuation.
if (consonantChars.containsKey(currentChar)) {
result.append(consonantChars.get(currentChar));
if (currentChar == nextChar) {
//double consonant found, add a bar.
result.append(bars.get(barSizes.get(consonantChars.get(currentChar))));
i++;
}
} else if (punctuationChars.containsKey(currentChar)) {
result.append(punctuationChars.get(currentChar));
} else if (numberChars.containsKey(currentChar)) {
result.append(numberChars.get(currentChar));
}
}
}
}
return result.toString();
}
/**
* Translates a tengwar string to english.
* @param tengwarString tengwar string.
* @return english string.
*/
public static String translateToEnglish(String tengwarString){
StringBuilder result = new StringBuilder(tengwarString.length()+tengwarString.length()/2);
for (int i = 0; i < tengwarString.length(); i++){
char currentChar = tengwarString.charAt(i);
char nextChar = 0;
char secondNextChar = 0;
try{
nextChar = tengwarString.charAt(i+1);
} catch (IndexOutOfBoundsException e){
//Do nothing, this is fine.
}
try{
secondNextChar = tengwarString.charAt(i+2);
} catch (IndexOutOfBoundsException e){
//Do nothing, this is fine.
}
String currentLiteral = getEnglishLiteral(currentChar);
//Check if the current character is a literal translation.
if (currentLiteral != null){
//Check if the next character is a vowel that should be placed before a character.
if (isVowelTengwar(nextChar) && !isSilentE(nextChar)){
result.append(getEnglishVowel(nextChar));
result.append(currentLiteral);
i++;
//Check for a double-bar, and then add whatever the current char is.
if (bars.contains(secondNextChar)){
result.append(currentLiteral);
i++;
}
} else if (bars.contains(nextChar)){
result.append(currentLiteral);
i++;
} else {
//Just append the current literal, no skipping.
result.append(currentLiteral);
}
} else {
//Current character is not a literal translation, so it is an E_UNDER, or carrier.
if (carriers.contains(currentChar)){
//If carrier, append the following vowel.
result.append(getEnglishVowel(nextChar));
i++;
} else if (isSilentE(currentChar)) {
result.append('e');
}
}
}
return result.toString();
}
}

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