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https://codeberg.org/Freeyourgadget/Gadgetbridge
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added some comments. [master]
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@ -3,7 +3,10 @@ package nodomain.freeyourgadget.gadgetbridge.util;
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import java.util.Hashtable;
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import java.util.regex.*;
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// What's the reason to extending LanguageUtils?
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// Just doing it because already done in the previous code.
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public class BengaliLanguageUtils extends LanguageUtils {
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// Composite Letters.
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private final static Hashtable<String, String> composites = new Hashtable<String, String>() {
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{
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put("ক্ষ", "kkh");
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@ -20,6 +23,7 @@ public class BengaliLanguageUtils extends LanguageUtils {
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put("্ব", "w");
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}
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};
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// Single Character Letters.
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private final static Hashtable<String, String> letters = new Hashtable<String, String>() {
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{
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put("আ", "aa");
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@ -97,6 +101,7 @@ public class BengaliLanguageUtils extends LanguageUtils {
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}
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};
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// The regex to extract Bengali characters in nested groups.
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private final static String pattern = "(র্){0,1}([অ-হড়-য়](্([অ-মশ-হড়-য়]))*)((){0,1}(্([য-ল]))){0,1}([া-ৌ]){0,1}|[্ঁঃংৎ০-৯।]| ";
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public static String transliterate(String txt) {
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@ -114,6 +119,9 @@ public class BengaliLanguageUtils extends LanguageUtils {
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appendableString = appendableString + "rr";
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}
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int g = 0;
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// This is a filter-down approach. First considering larger groups,
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// If found any match breaks their. Else go to the next step.
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// Helpful to solve some corner-cases.
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while (g < 5) {
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String key = m.group(g);
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if (key != null) {
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@ -154,6 +162,8 @@ public class BengaliLanguageUtils extends LanguageUtils {
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appendableString = appendableString + letters.get(kaar);
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}
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} else if (appendableString.length() > 0 && !appendableString.equals(".")) {
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// Adding 'a' like ITRANS if no vowel is present.
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// TODO: Have to add it dynamically using Bengali grammer rules.
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appendableString = appendableString + "a";
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}
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String others = m.group(0);
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