mirror of
https://codeberg.org/Freeyourgadget/Gadgetbridge.git
synced 2025-01-13 18:41:14 +01:00
344 lines
13 KiB
Java
344 lines
13 KiB
Java
/* Copyright (C) 2017-2018 Andreas Shimokawa, Daniele Gobbetti, ivanovlev,
|
||
lazarosfs, McSym28, Ted Stein, Yaron Shahrabani
|
||
|
||
This file is part of Gadgetbridge.
|
||
|
||
Gadgetbridge is free software: you can redistribute it and/or modify
|
||
it under the terms of the GNU Affero General Public License as published
|
||
by the Free Software Foundation, either version 3 of the License, or
|
||
(at your option) any later version.
|
||
|
||
Gadgetbridge is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU Affero General Public License for more details.
|
||
|
||
You should have received a copy of the GNU Affero General Public License
|
||
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
||
package nodomain.freeyourgadget.gadgetbridge.util;
|
||
|
||
import android.text.TextUtils;
|
||
import android.util.Pair;
|
||
|
||
import org.apache.commons.lang3.text.WordUtils;
|
||
|
||
import java.text.Normalizer;
|
||
import java.util.ArrayList;
|
||
import java.util.HashMap;
|
||
import java.util.List;
|
||
import java.util.Map;
|
||
|
||
import nodomain.freeyourgadget.gadgetbridge.GBApplication;
|
||
|
||
public class LanguageUtils {
|
||
//transliteration map with english equivalent for unsupported chars
|
||
private static Map<Character, String> transliterateMap = new HashMap<Character, String>(){
|
||
{
|
||
//extended ASCII characters
|
||
put('æ', "ae"); put('œ', "oe"); put('ª', "a"); put('º', "o"); put('«',"\""); put('»',"\"");
|
||
|
||
//german characters
|
||
put('ä',"ae"); put('ö',"oe"); put('ü',"ue");
|
||
put('Ä',"Ae"); put('Ö',"Oe"); put('Ü',"Üe");
|
||
put('ß',"ss"); put('ẞ',"SS");
|
||
|
||
//russian chars
|
||
put('а', "a"); put('б', "b"); put('в', "v"); put('г', "g"); put('д', "d"); put('е', "e"); put('ё', "jo"); put('ж', "zh");
|
||
put('з', "z"); put('и', "i"); put('й', "jj"); put('к', "k"); put('л', "l"); put('м', "m"); put('н', "n"); put('о', "o");
|
||
put('п', "p"); put('р', "r"); put('с', "s"); put('т', "t"); put('у', "u"); put('ф', "f"); put('х', "kh"); put('ц', "c");
|
||
put('ч', "ch");put('ш', "sh");put('щ', "shh");put('ъ', "\"");put('ы', "y"); put('ь', "'"); put('э', "eh"); put('ю', "ju");
|
||
put('я', "ja");
|
||
|
||
//hebrew chars
|
||
put('א', "a"); put('ב', "b"); put('ג', "g"); put('ד', "d"); put('ה', "h"); put('ו', "u"); put('ז', "z"); put('ח', "kh");
|
||
put('ט', "t"); put('י', "y"); put('כ', "c"); put('ל', "l"); put('מ', "m"); put('נ', "n"); put('ס', "s"); put('ע', "'");
|
||
put('פ', "p"); put('צ', "ts"); put('ק', "k"); put('ר', "r"); put('ש', "sh"); put('ת', "th"); put('ף', "f"); put('ץ', "ts");
|
||
put('ך', "ch");put('ם', "m");put('ן', "n");
|
||
|
||
// greek chars
|
||
put('α',"a");put('ά',"a");put('β',"v");put('γ',"g");put('δ',"d");put('ε',"e");put('έ',"e");put('ζ',"z");put('η',"i");
|
||
put('ή',"i");put('θ',"th");put('ι',"i");put('ί',"i");put('ϊ',"i");put('ΐ',"i");put('κ',"k");put('λ',"l");put('μ',"m");
|
||
put('ν',"n");put('ξ',"ks");put('ο',"o");put('ό',"o");put('π',"p");put('ρ',"r");put('σ',"s");put('ς',"s");put('τ',"t");
|
||
put('υ',"y");put('ύ',"y");put('ϋ',"y");put('ΰ',"y");put('φ',"f");put('χ',"ch");put('ψ',"ps");put('ω',"o");put('ώ',"o");
|
||
put('Α',"A");put('Ά',"A");put('Β',"B");put('Γ',"G");put('Δ',"D");put('Ε',"E");put('Έ',"E");put('Ζ',"Z");put('Η',"I");
|
||
put('Ή',"I");put('Θ',"TH");put('Ι',"I");put('Ί',"I");put('Ϊ',"I");put('Κ',"K");put('Λ',"L");put('Μ',"M");put('Ν',"N");
|
||
put('Ξ',"KS");put('Ο',"O");put('Ό',"O");put('Π',"P");put('Ρ',"R");put('Σ',"S");put('Τ',"T");put('Υ',"Y");put('Ύ',"Y");
|
||
put('Ϋ',"Y");put('Φ',"F");put('Χ',"CH");put('Ψ',"PS");put('Ω',"O");put('Ώ',"O");
|
||
|
||
//ukrainian characters
|
||
put('ґ', "gh"); put('є', "je"); put('і', "i"); put('ї', "ji"); put('Ґ', "GH"); put('Є', "JE"); put('І', "I"); put('Ї', "JI");
|
||
|
||
// Arabic
|
||
put('ا', "a"); put('ب', "b"); put('ت', "t"); put('ث', "th"); put('ج', "j"); put('ح', "7"); put('خ', "5");
|
||
put('د', "d"); put('ذ', "th"); put('ر', "r"); put('ز', "z"); put('س', "s"); put('ش', "sh"); put('ص', "9");
|
||
put('ض', "9'"); put('ط', "6"); put('ظ', "6'"); put('ع', "3"); put('غ', "3'"); put('ف', "f");
|
||
put('ق', "q"); put('ك', "k"); put('ل', "l"); put('م', "m"); put('ن', "n"); put('ه', "h");
|
||
put('و', "w"); put('ي', "y"); put('ى', "a"); put('ﺓ', "");
|
||
put('آ', "2"); put('ئ', "2"); put('إ', "2"); put('ؤ', "2"); put('أ', "2"); put('ء', "2");
|
||
|
||
// Farsi
|
||
put('پ', "p"); put('چ', "ch"); put('ڜ', "ch"); put('ڤ', "v"); put('ڥ', "v");
|
||
put('ڨ', "g"); put('گ', "g"); put('ݣ', "g");
|
||
|
||
// Polish
|
||
put('Ł', "L"); put('ł', "l");
|
||
|
||
//Lithuanian
|
||
put('ą', "a"); put('č', "c"); put('ę', "e"); put('ė', "e"); put('į', "i"); put('š', "s"); put('ų', "u"); put('ū', "u"); put('ž', "z");
|
||
|
||
//TODO: these must be configurable. If someone wants to transliterate cyrillic it does not mean his device has no German umlauts
|
||
//all or nothing is really bad here
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Checks the status of transliteration option
|
||
* @return true if transliterate option is On, and false, if Off or not exist
|
||
*/
|
||
public static boolean transliterate()
|
||
{
|
||
return GBApplication.getPrefs().getBoolean("transliteration", false);
|
||
}
|
||
|
||
/**
|
||
* Replaces unsupported symbols to english
|
||
* @param txt input text
|
||
* @return transliterated text
|
||
*/
|
||
public static String transliterate(String txt){
|
||
if (txt == null || txt.isEmpty()) {
|
||
return txt;
|
||
}
|
||
|
||
StringBuilder message = new StringBuilder();
|
||
|
||
char[] chars = txt.toCharArray();
|
||
|
||
for (char c : chars)
|
||
{
|
||
message.append(transliterate(c));
|
||
}
|
||
|
||
String messageString = BengaliLanguageUtils.transliterate(message.toString());
|
||
|
||
return flattenToAscii(messageString);
|
||
}
|
||
|
||
/**
|
||
* Replaces unsupported symbol to english by {@code transliterateMap}
|
||
* @param c input char
|
||
* @return replacement text
|
||
*/
|
||
private static String transliterate(char c){
|
||
char lowerChar = Character.toLowerCase(c);
|
||
|
||
if (transliterateMap.containsKey(lowerChar)) {
|
||
String replace = transliterateMap.get(lowerChar);
|
||
|
||
if (lowerChar != c)
|
||
{
|
||
return WordUtils.capitalize(replace);
|
||
}
|
||
|
||
return replace;
|
||
}
|
||
|
||
return String.valueOf(c);
|
||
}
|
||
|
||
/**
|
||
* Converts the diacritics
|
||
* @param string input text
|
||
* @return converted text
|
||
*/
|
||
private static String flattenToAscii(String string) {
|
||
string = Normalizer.normalize(string, Normalizer.Form.NFD);
|
||
return string.replaceAll("\\p{M}", "");
|
||
}
|
||
|
||
/**
|
||
* Checks the status of right-to-left option
|
||
* @return true if right-to-left option is On, and false, if Off or not exist
|
||
*/
|
||
public static boolean rtlSupport()
|
||
{
|
||
return GBApplication.getPrefs().getBoolean("rtl", false);
|
||
}
|
||
|
||
//map with brackets chars to change there direction
|
||
private static Map<Character, Character> directionSignsMap = new HashMap<Character, Character>(){
|
||
{
|
||
put('(', ')'); put(')', '('); put('[', ']'); put(']', '['); put('{','}'); put('}','{');
|
||
|
||
|
||
}
|
||
};
|
||
|
||
//list of unicode ranges of rtl chars
|
||
private static ArrayList <Pair<Character, Character>> rtlRange = new ArrayList<Pair<Character, Character>>() {
|
||
{
|
||
add(new Pair<Character, Character>('\u0590', '\u05F4'));
|
||
add(new Pair<Character, Character>('\uFB1D', '\uFB4F'));
|
||
add(new Pair<Character, Character>('\u0600', '\u06FF'));
|
||
add(new Pair<Character, Character>('\u0750', '\u077F'));
|
||
add(new Pair<Character, Character>('\u08A0', '\u08FF'));
|
||
add(new Pair<Character, Character>('\uFB50', '\uFDFF'));
|
||
add(new Pair<Character, Character>('\uFE70', '\uFEFF'));
|
||
}
|
||
};
|
||
|
||
/**
|
||
* @return true if the char is in the rtl range, otherwise false
|
||
*/
|
||
private static Boolean isRtl(char c){
|
||
for (Pair<Character, Character> rang: rtlRange) {
|
||
if (rang.first <= c && c <= rang.second) {
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
//list of unicode ranges of punctuations chars
|
||
private static ArrayList <Pair<Character, Character>> punctuationsRange = new ArrayList<Pair<Character, Character>>() {
|
||
{
|
||
add(new Pair<Character, Character>('\u0021', '\u002F'));
|
||
add(new Pair<Character, Character>('\u003A', '\u0040'));
|
||
add(new Pair<Character, Character>('\u005B', '\u0060'));
|
||
add(new Pair<Character, Character>('\u007B', '\u007E'));
|
||
}
|
||
};
|
||
|
||
/**
|
||
* @return true if the char is in the punctuations range, otherwise false
|
||
*/
|
||
private static Boolean isPunctuations(char c){
|
||
for (Pair<Character, Character> rang: punctuationsRange) {
|
||
if (rang.first <= c && c <= rang.second) {
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
//list of sign that ends a word
|
||
private static ArrayList<Character> wordEndSigns = new ArrayList<Character>() {
|
||
{
|
||
add('\0');
|
||
add('\n');
|
||
add(' ');
|
||
}
|
||
};
|
||
|
||
/**
|
||
* @return true if the char is in the end of word list, otherwise false
|
||
*/
|
||
private static Boolean isWordEndSign(char c){
|
||
for (char sign: wordEndSigns){
|
||
if (c == sign){
|
||
return true;
|
||
}
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
/**
|
||
* The function get a string and reverse it.
|
||
* in case of end-of-word sign, it will leave it at the end.
|
||
* in case of sign with direction like brackets, it will change the direction.
|
||
* @param s - the string to reverse
|
||
* @return reversed string
|
||
*/
|
||
private static String reverse(String s) {
|
||
int j = s.length();
|
||
int startWithSpace = 0;
|
||
char[] newWord = new char[j];
|
||
|
||
if (j == 0) {
|
||
return s;
|
||
}
|
||
|
||
// remain end-of-word sign at the end
|
||
if (isWordEndSign(s.charAt(s.length() - 1))){
|
||
startWithSpace = 1;
|
||
newWord[--j] = s.charAt(s.length() - 1);
|
||
}
|
||
|
||
for (int i = 0; i < s.length() - startWithSpace; i++) {
|
||
if (LanguageUtils.directionSignsMap.containsKey(s.charAt(i))) {
|
||
newWord[--j] = LanguageUtils.directionSignsMap.get(s.charAt(i));
|
||
} else {
|
||
newWord[--j] = s.charAt(i);
|
||
}
|
||
}
|
||
return new String(newWord);
|
||
}
|
||
|
||
/**
|
||
* The function get a string and fix the rtl words.
|
||
* since simple reverse puts the beginning of the text at the end, the text should have been from bottom to top.
|
||
* To avoid that, we save the text in lines (line max size can be change in the settings)
|
||
* @param s - the string to fix.
|
||
* @return a fix string.
|
||
*/
|
||
public static String fixRtl(String s) {
|
||
if (s == null || s.isEmpty()){
|
||
return s;
|
||
}
|
||
int length = s.length();
|
||
String oldString = s.substring(0, length);
|
||
String newString = "";
|
||
List<String> lines = new ArrayList<>();
|
||
char[] newWord = new char[length];
|
||
int line_max_size = GBApplication.getPrefs().getInt("rtl_max_line_length", 20);;
|
||
|
||
int startPos = 0;
|
||
int endPos = 0;
|
||
Boolean isRtlState = LanguageUtils.isRtl(oldString.charAt(0));
|
||
char c;
|
||
String line = "";
|
||
for (int i = 0; i < length; i++) {
|
||
c = oldString.charAt(i);
|
||
if ((LanguageUtils.isRtl(c) == isRtlState || LanguageUtils.isPunctuations(c)) && i < length - 1) {
|
||
endPos++;
|
||
} else {
|
||
String word;
|
||
|
||
if (isWordEndSign(c)){
|
||
endPos++;
|
||
}
|
||
|
||
if (i == length - 1){
|
||
endPos = length;
|
||
}
|
||
if (isRtlState) {
|
||
word = reverse(oldString.substring(startPos, endPos));
|
||
} else {
|
||
word = (oldString.substring(startPos, endPos));
|
||
}
|
||
if (line.length() + word.length() > line_max_size) {
|
||
lines.add(line + "\n");
|
||
line = "";
|
||
}
|
||
line = String.format("%s%s", word, line);
|
||
if (line.endsWith("\0") || line.endsWith("\n")) {
|
||
lines.add(line);
|
||
line = "";
|
||
}
|
||
startPos = endPos;
|
||
if (!isWordEndSign(c)){
|
||
endPos++;
|
||
isRtlState = !isRtlState;
|
||
}
|
||
}
|
||
}
|
||
|
||
lines.add(line);
|
||
|
||
newString = TextUtils.join("", lines);
|
||
|
||
return newString;
|
||
}
|
||
}
|