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export enum LetterType {
CONSONANT = 1,
VOWEL_IN_KAR_FORM = 2,
FOLA = 3,
HASANTA = 4,
ZERO_WIDTH_NON_JOINER = 5,
MANDATORY_END = 6, // Should be used with ZWJ only
VOWEL_IN_FULL_FORM = 7
}
// <summary>Letter Information Class</summary>
export class LetterInformation {
currentLanguage: string = "bn_BD";
replaceLastChar: boolean = false; // Replace ক with খ if required
ZWNJ: string = "\u200c"; // Do not render the letter with previous letter
ZWJ: string = "\u200d"; // Render the letter with previous letter
letterKeyMap: string[][] =
[
["\u09be", "\u0985"], // aa-kar and onamika......... A
["\u09ac", "\u0981"], // bandorban and chondrobindu..... B
["\u099a", "\u099b"], // chirokaal and chobi...... C
["\u09a1", "\u09a6"], // dahuk and dekha...... D
["\u09c7", "\u098f"], // emni and oirabot...... E
["\u09ab", "\u09a5"], // ful and thimpu...... F
["\u0997", "\u0998"], // gotokal and ghatshila...... G
["", "\u09b9"], // ____ and hotath...... H
["\u09bf", "\u0987"], // ishrat and iishaan...... I
["\u099c", "\u099d"], // jonogon and jhargram...... J
["\u0995", "\u0996"], // kotha and khagrachori...... K
["\u09b2", "\u09b6"], // lalmonirhaat and shorot...... L
["\u09ae", "\u0983"], // minisha and dukkho...... M
["\u09a8", "\u09a3"], // notun and notto-bidhan...... N
["\u09cb", "\u0993"], // oli and oushodh...... O
["\u09aa", "\u09ab"], // polashi and falgun...... P
["\u09cd", "\u09dd"], // hasanta and ashaar...... Q
["\u09b0", "\u09dc"], // rinita and jhor....... R
["\u09b8", "\u09b7"], // seoul and sholoi-december...... S
["\u099f", "\u09A4"], // tipaimukh and tutul...... T
["\u09c1", "\u0989"], // uttom and usha...... U
["\u09ad", "\u0982"], // vrammoman and itong-bitong...... V
["\u09c3", "\u09a7"], // rii-kar and dhormoshala...... W
["\u0999", "\u099e"], // 5th and 10th consonant...... X
["\u09df", "\u09cd\u09af"], // ayan and z-fola...... Y
["\u09af", "\u09ce"], // zoti and khanda-ta...... Z
];
numberKeyMap: Array<string> =
[
"\u09e6", "\u09e7", "\u09e8", "\u09e9", "\u09ea", "\u09eb", "\u09ec", "\u09ed", "\u09ee", "\u09ef"
];
consecutiveVowelMap: string[][] =
[
["\u0985", ""], ["\u09be", ""],
["\u09c7", "\u09c8"], ["\u098f", "\u0990"],
["\u09cb", "\u09cc"], ["\u0993", "\u0994"],
["\u09bf", "\u09c0"], ["\u0987", "\u0988"],
["\u09c1", "\u09c2"], ["\u0989", "\u098a"],
["\u09c3", "\u098b"], ["\u09cd", "+"]
];
getConsecutiveVowel = function (inputValue: string): string {
for (let start = 0; start < this.consecutiveVowelMap.length; ++start) {
if (this.consecutiveVowelMap[start][0] === inputValue) {
return this.consecutiveVowelMap[start][1];
}
}
return "";
};
letter_info =
[
["\u200d", LetterType.ZERO_WIDTH_NON_JOINER, ""],
/*shor-borno*/
["\u0985", LetterType.VOWEL_IN_FULL_FORM, "\u0985"],
["\u0986", LetterType.VOWEL_IN_FULL_FORM, "\u09BE"],
["\u0987", LetterType.VOWEL_IN_FULL_FORM, "\u09bf"],
["\u0988", LetterType.VOWEL_IN_FULL_FORM, "\u09c0"],
["\u0989", LetterType.VOWEL_IN_FULL_FORM, "\u09c1"],
["\u098a", LetterType.VOWEL_IN_FULL_FORM, "\u09c2"],
["\u098b", LetterType.VOWEL_IN_FULL_FORM, "\u09c3"],
["\u098f", LetterType.VOWEL_IN_FULL_FORM, "\u09c7"],
["\u0990", LetterType.VOWEL_IN_FULL_FORM, "\u09c8"],
["\u0993", LetterType.VOWEL_IN_FULL_FORM, "\u09cb"],
["\u0994", LetterType.VOWEL_IN_FULL_FORM, "\u09cc"],
/*kobor*/["\u0995", LetterType.CONSONANT, "\u0996"], ["\u0996", LetterType.CONSONANT, ""], ["\u0997", LetterType.CONSONANT, "\u0998"], ["\u0998", LetterType.CONSONANT, ""], ["\u0999", LetterType.CONSONANT, ""],
/*cholonto*/["\u099a", LetterType.CONSONANT, "\u099b"], ["\u099b", LetterType.CONSONANT, ""], ["\u099c", LetterType.CONSONANT, "\u099d"], ["\u099d", LetterType.CONSONANT, ""], ["\u099e", LetterType.CONSONANT, ""],
/*tonkar*/["\u099f", LetterType.CONSONANT, "\u09a0"], ["\u09a0", LetterType.CONSONANT, ""], ["\u09a1", LetterType.CONSONANT, "\u09a2"], ["\u09a2", LetterType.CONSONANT, ""], ["\u09a3", LetterType.FOLA, ""],
/*tutul*/["\u09a4", LetterType.CONSONANT, "\u09a5"], ["\u09a5", LetterType.CONSONANT, ""], ["\u09a6", LetterType.CONSONANT, "\u09a7"], ["\u09a7", LetterType.CONSONANT, ""], ["\u09a8", LetterType.CONSONANT, ""],
/*paloan*/["\u09aa", LetterType.CONSONANT, "\u09ab"], ["\u09ab", LetterType.CONSONANT, ""], ["\u09ac", LetterType.FOLA, "\u09ad"], ["\u09ad", LetterType.CONSONANT, ""], ["\u09ae", LetterType.CONSONANT, ""], ["\u09af", LetterType.FOLA, ""], ["\u09b0", LetterType.FOLA, "\u09dc"], ["\u09b2", LetterType.CONSONANT, ""],
/*shosank*/["\u09b6", LetterType.CONSONANT, ""], ["\u09b7", LetterType.CONSONANT, ""], ["\u09b8", LetterType.CONSONANT, "\u09b6"], ["\u09b9", LetterType.CONSONANT, ""],
/*remaining consonants*/
["\u09dc", LetterType.CONSONANT, "\u09dd"], // ড়
["\u09dd", LetterType.CONSONANT, ""], // ঢ়
["\u09df", LetterType.CONSONANT, ""], // য়
["\u09fb", LetterType.CONSONANT, ""], // ৻
["\u09fc", LetterType.CONSONANT, ""], // ৼ
/*ami-amra*/
["\u09be", LetterType.VOWEL_IN_KAR_FORM, "\u0986"],
["\u09bf", LetterType.VOWEL_IN_KAR_FORM, "\u0987"],
["\u09c0", LetterType.VOWEL_IN_KAR_FORM, "\u0988"],
["\u09c1", LetterType.VOWEL_IN_KAR_FORM, "\u0989"],
["\u09c2", LetterType.VOWEL_IN_KAR_FORM, "\u098a"],
["\u09c3", LetterType.VOWEL_IN_KAR_FORM, "\u098b"],
["\u09c7", LetterType.VOWEL_IN_KAR_FORM, "\u098f"],
["\u09c8", LetterType.VOWEL_IN_KAR_FORM, "\u0990"],
["\u09cb", LetterType.VOWEL_IN_KAR_FORM, "\u0993"],
["\u09cc", LetterType.VOWEL_IN_KAR_FORM, "\u0994"],
["\u09d7", LetterType.VOWEL_IN_KAR_FORM, "\u0988"],
// Suffix
["\u0964", LetterType.MANDATORY_END, "\u002e"], // ।
["\u09cd", LetterType.HASANTA, "\u09cd"],
["\u09ce", LetterType.MANDATORY_END, ""], // ৎ
["\u0981", LetterType.MANDATORY_END, ""], // ◌ঁ
["\u0982", LetterType.MANDATORY_END, ""], // ং
["\u0983", LetterType.MANDATORY_END, ""], // ঃ
["\u09f3", LetterType.MANDATORY_END, "$"] // ৳
].sort(function (a, b) {
return a[0] < b[0] ? -1 : 1;
});
// <summary>binary search for a follower value</summary>
getFollower(inputValue: string, propertyNo: number): string | number {
var start = 0;
var end = this.letter_info.length - 1;
var mid = Math.floor((end + start) / 2);
for (; end >= start; mid = Math.floor((end + start) / 2)) {
if (this.letter_info[mid][0] === inputValue)
return this.letter_info[mid][propertyNo];
if (this.letter_info[mid][0] > inputValue)
end = mid - 1;
else
start = mid + 1;
}
return "";
}
} |