thixpin / Virama-JS

lib/virama.js

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    return new (P || (P = Promise))(function (resolve, reject) {

You seem to be aliasing the built-in name Promise as P. This makes your code very difficult to follow, consider using the built-in name directly.

        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
const testerID = 'fontTester';
let browserFont;
const addTestDivToBody = () => {
    const newDiv = document.createElement('div');
    newDiv.style.cssText =
        'position:absolute;width:100%;opacity:0.3;z-index:-10; top: -50px; height: 20px; display: none';
    newDiv.id = testerID;
    const spanCss = 'font-family: initial; margin: 0; padding: 0; font-size: 20px; line-height: 20px; height: 20px;';
    const testSpans = '<span style="' +
        spanCss +
        '" id="one_ka">&#x1000;</span>\n' +
        '<span style="' +
        spanCss +
        '" id="two_ka">&#x1000;&#x1039;&#x1000;</span>\n';
    newDiv.innerHTML = testSpans;
    document.body.appendChild(newDiv);
    return true;
};
const detectBrowserFont = () => {
    const testDiv = document.getElementById(testerID);
    if (testDiv) {
        testDiv.style.display = '';
    }
    const oneKa = document.getElementById('one_ka');
    const twoKa = document.getElementById('two_ka');
    if (oneKa && twoKa) {
        browserFont = oneKa.offsetWidth * 1.5 > twoKa.offsetWidth ? 'Unicode' : 'Zawgyi';
        if (testDiv) {
            testDiv.style.display = 'none';
        }
    }
    return browserFont;

The variable browserFont does not seem to be initialized in case oneKa && twoKa on line 36 is false. Are you sure this can never be the case?

};
const init = () => __awaiter(this, void 0, void 0, function* () {

Consider using undefined instead of void(0). It is equivalent and more straightforward to read.

    if (document.getElementById(testerID)) {
        browserFont = detectBrowserFont();
    }
    else {
        yield addTestDivToBody();
        browserFont = detectBrowserFont();
    }
});
init();
const replaceWithRule = (rule, output) => {
    const maxLoop = rule.length;
    for (let i = 0; i < maxLoop; i++) {
        const data = rule[i];
        const from = data.from;
        const to = data.to;
        const fromRegex = new RegExp(from, 'g');
        output = output.replace(fromRegex, to);
    }
    return output;
};
exports.getBrowserFont = () => {
    return browserFont;
};
exports.isMyanmarText = (text) => {
    const MyanmarReg = new RegExp('[\u1000-\u1021]');
    return MyanmarReg.test(text) ? true : false;
};
exports.uni2zg = (output) => {
    if (!exports.isMyanmarText(output)) {
        return output;
    }
    const rule = [
        {
            from: '\u1004\u103a\u1039',
            to: '\u1064',
        },
        {
            from: '\u1039\u1010\u103d',
            to: '\u1096',
        },
        {
            from: '\u102b\u103a',
            to: '\u105a',
        },
        {
            from: '\u100b\u1039\u100c',
            to: '\u1092',
        },
        {
            from: '\u102d\u1036',
            to: '\u108e',
        },
        {
            from: '\u104e\u1004\u103a\u1038',
            to: '\u104e',
        },
        {
            from: '[\u1025\u1009](?=[\u1039\u102f\u1030])',
            to: '\u106a',
        },
        {
            from: '[\u1025\u1009](?=[\u1037]?[\u103a])',
            to: '\u1025',
        },
        {
            from: '\u100a(?=[\u1039\u103d])',
            to: '\u106b',
        },
        {
            from: '(\u1039[\u1000-\u1021])(\u102D){0,1}\u102f',
            to: '$1$2\u1033',
        },
        {
            from: '(\u1039[\u1000-\u1021])\u1030',
            to: '$1\u1034',
        },
        {
            from: '\u1014(?=[\u102d\u102e\u103a]?[\u102f\u1030\u103d\u103e\u1039])',
            to: '\u108f',
        },
        {
            from: '\u1014\u103c',
            to: '\u108f\u103c',
        },
        {
            from: '\u1039\u1000',
            to: '\u1060',
        },
        {
            from: '\u1039\u1001',
            to: '\u1061',
        },
        {
            from: '\u1039\u1002',
            to: '\u1062',
        },
        {
            from: '\u1039\u1003',
            to: '\u1063',
        },
        {
            from: '\u1039\u1005',
            to: '\u1065',
        },
        {
            from: '\u1039\u1006',
            to: '\u1066',
        },
        {
            from: '\u1039\u1007',
            to: '\u1068',
        },
        {
            from: '\u1039\u1008',
            to: '\u1069',
        },
        {
            from: '\u1039\u100b',
            to: '\u106c',
        },
        {
            from: '\u1039\u100c',
            to: '\u106d',
        },
        {
            from: '\u100d\u1039\u100d',
            to: '\u106e',
        },
        {
            from: '\u100e\u1039\u100d',
            to: '\u106f',
        },
        {
            from: '\u1039\u100f',
            to: '\u1070',
        },
        {
            from: '\u1039\u1010',
            to: '\u1071',
        },
        {
            from: '\u1039\u1011',
            to: '\u1073',
        },
        {
            from: '\u1039\u1012',
            to: '\u1075',
        },
        {
            from: '\u1039\u1013',
            to: '\u1076',
        },
        {
            from: '\u1039[\u1014\u108f]',
            to: '\u1077',
        },
        {
            from: '\u1039\u1015',
            to: '\u1078',
        },
        {
            from: '\u1039\u1016',
            to: '\u1079',
        },
        {
            from: '\u1039\u1017',
            to: '\u107a',
        },
        {
            from: '\u1039\u1018',
            to: '\u107b',
        },
        {
            from: '\u1039\u1019',
            to: '\u107c',
        },
        {
            from: '\u1039\u101c',
            to: '\u1085',
        },
        {
            from: '\u103f',
            to: '\u1086',
        },
        {
            from: '\u103d\u103e',
            to: '\u108a',
        },
        {
            from: '(\u1064)([\u1000-\u1021])([\u103b\u103c]?)\u102d',
            to: '$2$3\u108b',
        },
        {
            from: '(\u1064)([\u1000-\u1021])([\u103b\u103c]?)\u102e',
            to: '$2$3\u108c',
        },
        {
            from: '(\u1064)([\u1000-\u1021])([\u103b\u103c]?)\u1036',
            to: '$2$3\u108d',
        },
        {
            from: '(\u1064)([\u1000-\u1021])([\u103b\u103c]?)([\u1031]?)',
            to: '$2$3$4$1',
        },
        {
            from: '\u101b(?=([\u102d\u102e]?)[\u102f\u1030\u103d\u108a])',
            to: '\u1090',
        },
        {
            from: '\u100f\u1039\u100d',
            to: '\u1091',
        },
        {
            from: '\u100b\u1039\u100b',
            to: '\u1097',
        },
        {
            from: '([\u1000-\u1021\u108f\u1029\u1090])([\u1060-\u1069\u106c\u106d\u1070-\u107c\u1085\u108a])?([\u103b-\u103e]*)?\u1031',
            to: '\u1031$1$2$3',
        },
        {
            from: '\u103c\u103e',
            to: '\u103c\u1087',
        },
        {
            from: '([\u1000-\u1021\u108f\u1029])([\u1060-\u1069\u106c\u106d\u1070-\u107c\u1085])?(\u103c)',
            to: '$3$1$2',
        },
        {
            from: '\u103a',
            to: '\u1039',
        },
        {
            from: '\u103b',
            to: '\u103a',
        },
        {
            from: '\u103c',
            to: '\u103b',
        },
        {
            from: '\u103d',
            to: '\u103c',
        },
        {
            from: '\u103e',
            to: '\u103d',
        },
        {
            from: '([^\u103a\u100a])\u103d([\u102d\u102e]?)\u102f',
            to: '$1\u1088$2',
        },
        {
            from: '([\u101b\u103a\u103c\u108a\u1088\u1090])([\u1030\u103d])?([\u1032\u1036\u1039\u102d\u102e\u108b\u108c\u108d\u108e]?)(\u102f)?\u1037',
            to: '$1$2$3$4\u1095',
        },
        {
            from: '([\u102f\u1014\u1030\u103d])([\u1032\u1036\u1039\u102d\u102e\u108b\u108c\u108d\u108e]?)\u1037',
            to: '$1$2\u1094',
        },
        {
            from: '([\u103b])([\u1000-\u1021])([\u1087]?)([\u1036\u102d\u102e\u108b\u108c\u108d\u108e]?)\u102f',
            to: '$1$2$3$4\u1033',
        },
        {
            from: '([\u103b])([\u1000-\u1021])([\u1087]?)([\u1036\u102d\u102e\u108b\u108c\u108d\u108e]?)\u1030',
            to: '$1$2$3$4\u1034',
        },
        {
            from: '([\u103a\u103c\u100a\u1020\u1025])([\u103d]?)([\u1036\u102d\u102e\u108b\u108c\u108d\u108e]?)\u102f',
            to: '$1$2$3\u1033',
        },
        {
            from: '([\u103a\u103c\u100a\u101b])(\u103d?)([\u1036\u102d\u102e\u108b\u108c\u108d\u108e]?)\u1030',
            to: '$1$2$3\u1034',
        },
        {
            from: '\u100a\u103d',
            to: '\u100a\u1087',
        },
        {
            from: '\u103d\u1030',
            to: '\u1089',
        },
        {
            from: '\u103b([\u1000\u1003\u1006\u100f\u1010\u1011\u1018\u101a\u101c\u101a\u101e\u101f])',
            to: '\u107e$1',
        },
        {
            from: '\u107e([\u1000\u1003\u1006\u100f\u1010\u1011\u1018\u101a\u101c\u101a\u101e\u101f])([\u103c\u108a])([\u1032\u1036\u102d\u102e\u108b\u108c\u108d\u108e])',
            to: '\u1084$1$2$3',
        },
        {
            from: '\u107e([\u1000\u1003\u1006\u100f\u1010\u1011\u1018\u101a\u101c\u101a\u101e\u101f])([\u103c\u108a])',
            to: '\u1082$1$2',
        },
        {
            from: '\u107e([\u1000\u1003\u1006\u100f\u1010\u1011\u1018\u101a\u101c\u101a\u101e\u101f])([\u1033\u1034]?)([\u1032\u1036\u102d\u102e\u108b\u108c\u108d\u108e])',
            to: '\u1080$1$2$3',
        },
        {
            from: '\u103b([\u1000-\u1021])([\u103c\u108a])([\u1032\u1036\u102d\u102e\u108b\u108c\u108d\u108e])',
            to: '\u1083$1$2$3',
        },
        {
            from: '\u103b([\u1000-\u1021])([\u103c\u108a])',
            to: '\u1081$1$2',
        },
        {
            from: '\u103b([\u1000-\u1021])([\u1033\u1034]?)([\u1032\u1036\u102d\u102e\u108b\u108c\u108d\u108e])',
            to: '\u107f$1$2$3',
        },
        {
            from: '\u103a\u103d',
            to: '\u103d\u103a',
        },
        {
            from: '\u103a([\u103c\u108a])',
            to: '$1\u107d',
        },
        {
            from: '([\u1033\u1034])(\u1036?)\u1094',
            to: '$1$2\u1095',
        },
        {
            from: '\u108F\u1071',
            to: '\u108F\u1072',
        },
        {
            from: '([\u1000-\u1021])([\u107B\u1066])\u102C',
            to: '$1\u102C$2',
        },
        {
            from: '\u102C([\u107B\u1066])\u1037',
            to: '\u102C$1\u1094',
        },
    ];
    return replaceWithRule(rule, output);
};
exports.zg2uni = (output) => {
    if (!exports.isMyanmarText(output)) {
        return output;
    }
    const rule = [
        {
            from: '\u102f\u102f',
            to: '\u102f',
        },
        {
            from: '\u200B',
            to: '',
        },
        {
            from: '(\u103d|\u1087)',
            to: '\u103e',
        },
        {
            from: '\u103c',
            to: '\u103d',
        },
        {
            from: '(\u103b|\u107e|\u107f|\u1080|\u1081|\u1082|\u1083|\u1084)',
            to: '\u103c',
        },
        {
            from: '(\u103a|\u107d)',
            to: '\u103b',
        },
        {
            from: '\u1039',
            to: '\u103a',
        },
        {
            from: '(\u1066|\u1067)',
            to: '\u1039\u1006',
        },
        {
            from: '\u106a',
            to: '\u1009',
        },
        {
            from: '\u106b',
            to: '\u100a',
        },
        {
            from: '\u106c',
            to: '\u1039\u100b',
        },
        {
            from: '\u106d',
            to: '\u1039\u100c',
        },
        {
            from: '\u106e',
            to: '\u100d\u1039\u100d',
        },
        {
            from: '\u106f',
            to: '\u100d\u1039\u100e',
        },
        {
            from: '\u1070',
            to: '\u1039\u100f',
        },
        {
            from: '(\u1071|\u1072)',
            to: '\u1039\u1010',
        },
        {
            from: '\u1060',
            to: '\u1039\u1000',
        },
        {
            from: '\u1061',
            to: '\u1039\u1001',
        },
        {
            from: '\u1062',
            to: '\u1039\u1002',
        },
        {
            from: '\u1063',
            to: '\u1039\u1003',
        },
        {
            from: '\u1065',
            to: '\u1039\u1005',
        },
        {
            from: '\u1068',
            to: '\u1039\u1007',
        },
        {
            from: '\u1069',
            to: '\u1039\u1008',
        },
        {
            from: '(\u1073|\u1074)',
            to: '\u1039\u1011',
        },
        {
            from: '\u1075',
            to: '\u1039\u1012',
        },
        {
            from: '\u1076',
            to: '\u1039\u1013',
        },
        {
            from: '\u1077',
            to: '\u1039\u1014',
        },
        {
            from: '\u1078',
            to: '\u1039\u1015',
        },
        {
            from: '\u1079',
            to: '\u1039\u1016',
        },
        {
            from: '\u107a',
            to: '\u1039\u1017',
        },
        {
            from: '\u107c',
            to: '\u1039\u1019',
        },
        {
            from: '\u1085',
            to: '\u1039\u101c',
        },
        {
            from: '\u1033',
            to: '\u102f',
        },
        {
            from: '\u1034',
            to: '\u1030',
        },
        {
            from: '\u103f',
            to: '\u1030',
        },
        {
            from: '\u1086',
            to: '\u103f',
        },
        {
            from: '\u1036\u1088',
            to: '\u1088\u1036',
        },
        {
            from: '\u1088',
            to: '\u103e\u102f',
        },
        {
            from: '\u1089',
            to: '\u103e\u1030',
        },
        {
            from: '\u108a',
            to: '\u103d\u103e',
        },
        {
            from: '\u103B\u1064',
            to: '\u1064\u103B',
        },
        {
            from: '(\u1031)?([\u1000-\u1021])\u1064',
            to: '\u1004\u103a\u1039$1$2',
        },
        {
            from: '(\u1031)?([\u1000-\u1021])\u108b',
            to: '\u1004\u103a\u1039$1$2\u102d',
        },
        {
            from: '(\u1031)?([\u1000-\u1021])\u108c',
            to: '\u1004\u103a\u1039$1$2\u102e',
        },
        {
            from: '(\u1031)?([\u1000-\u1021])\u108d',
            to: '\u1004\u103a\u1039$1$2\u1036',
        },
        {
            from: '\u108e',
            to: '\u102d\u1036',
        },
        {
            from: '\u108f',
            to: '\u1014',
        },
        {
            from: '\u1090',
            to: '\u101b',
        },
        {
            from: '\u1091',
            to: '\u100f\u1039\u100d',
        },
        {
            from: '\u1019\u102c(\u107b|\u1093)',
            to: '\u1019\u1039\u1018\u102c',
        },
        {
            from: '(\u107b|\u1093)',
            to: '\u1039\u1018',
        },
        {
            from: '(\u1094|\u1095)',
            to: '\u1037',
        },
        {
            from: '([\u1000-\u1021])\u1037\u1032',
            to: '$1\u1032\u1037',
        },
        {
            from: '\u1096',
            to: '\u1039\u1010\u103d',
        },
        {
            from: '\u1097',
            to: '\u100b\u1039\u100b',
        },
        {
            from: '\u103c([\u1000-\u1021])([\u1000-\u1021])?',
            to: '$1\u103c$2',
        },
        {
            from: '([\u1000-\u1021])\u103c\u103a',
            to: '\u103c$1\u103a',
        },
        {
            from: '\u1047(?=[\u102c-\u1030\u1032\u1036-\u1038\u103d\u1038])',
            to: '\u101b',
        },
        {
            from: '\u1031\u1047',
            to: '\u1031\u101b',
        },
        {
            from: '\u1040(\u102e|\u102f|\u102d\u102f|\u1030|\u1036|\u103d|\u103e)',
            to: '\u101d$1',
        },
        {
            from: '([^\u1040\u1041\u1042\u1043\u1044\u1045\u1046\u1047\u1048\u1049])\u1040\u102b',
            to: '$1\u101d\u102b',
        },
        {
            from: '([\u1040\u1041\u1042\u1043\u1044\u1045\u1046\u1047\u1048\u1049])\u1040\u102b(?!\u1038)',
            to: '$1\u101d\u102b',
        },
        {
            from: '^\u1040(?=\u102b)',
            to: '\u101d',
        },
        {
            from: '\u1040\u102d(?!\u0020?/)',
            to: '\u101d\u102d',
        },
        {
            from: '([^\u1040-\u1049])\u1040([^\u1040-\u1049\u0020]|[\u104a\u104b])',
            to: '$1\u101d$2',
        },
        {
            from: '([^\u1040-\u1049])\u1040(?=[\\f\\n\\r])',
            to: '$1\u101d',
        },
        {
            from: '([^\u1040-\u1049])\u1040$',
            to: '$1\u101d',
        },
        {
            from: '\u1031([\u1000-\u1021])(\u103e)?(\u103b)?',
            to: '$1$2$3\u1031',
        },
        {
            from: '([\u1000-\u1021])\u1031([\u103b\u103c\u103d\u103e]+)',
            to: '$1$2\u1031',
        },
        {
            from: '\u1032\u103d',
            to: '\u103d\u1032',
        },
        {
            from: '([\u102d\u102e])\u103b',
            to: '\u103b$1',
        },
        {
            from: '\u103d\u103b',
            to: '\u103b\u103d',
        },
        {
            from: '\u103a\u1037',
            to: '\u1037\u103a',
        },
        {
            from: '\u102f(\u102d|\u102e|\u1036|\u1037)\u102f',
            to: '\u102f$1',
        },
        {
            from: '(\u102f|\u1030)(\u102d|\u102e)',
            to: '$2$1',
        },
        {
            from: '(\u103e)(\u103b|\u103c)',
            to: '$2$1',
        },
        {
            from: '\u1025(?=[\u1037]?[\u103a\u102c])',
            to: '\u1009',
        },
        {
            from: '\u1025\u102e',
            to: '\u1026',
        },
        {
            from: '\u1005\u103b',
            to: '\u1008',
        },
        {
            from: '\u1036(\u102f|\u1030)',
            to: '$1\u1036',
        },
        {
            from: '\u1031\u1037\u103e',
            to: '\u103e\u1031\u1037',
        },
        {
            from: '\u1031\u103e\u102c',
            to: '\u103e\u1031\u102c',
        },
        {
            from: '\u105a',
            to: '\u102b\u103a',
        },
        {
            from: '\u1031\u103b\u103e',
            to: '\u103b\u103e\u1031',
        },
        {
            from: '(\u102d|\u102e)(\u103d|\u103e)',
            to: '$2$1',
        },
        {
            from: '\u102c\u1039([\u1000-\u1021])',
            to: '\u1039$1\u102c',
        },
        {
            from: '\u103c\u1004\u103a\u1039([\u1000-\u1021])',
            to: '\u1004\u103a\u1039$1\u103c',
        },
        {
            from: '\u1039\u103c\u103a\u1039([\u1000-\u1021])',
            to: '\u103a\u1039$1\u103c',
        },
        {
            from: '\u103c\u1039([\u1000-\u1021])',
            to: '\u1039$1\u103c',
        },
        {
            from: '\u1036\u1039([\u1000-\u1021])',
            to: '\u1039$1\u1036',
        },
        {
            from: '\u1092',
            to: '\u100b\u1039\u100c',
        },
        {
            from: '\u104e',
            to: '\u104e\u1004\u103a\u1038',
        },
        {
            from: '\u1040(\u102b|\u102c|\u1036)',
            to: '\u101d$1',
        },
        {
            from: '\u1025\u1039',
            to: '\u1009\u1039',
        },
        {
            from: '([\u1000-\u1021])\u103c\u1031\u103d',
            to: '$1\u103c\u103d\u1031',
        },
        {
            from: '([\u1000-\u1021])\u103b\u1031\u103d(\u103e)?',
            to: '$1\u103b\u103d$2\u1031',
        },
        {
            from: '([\u1000-\u1021])\u103d\u1031\u103b',
            to: '$1\u103b\u103d\u1031',
        },
        {
            from: '([\u1000-\u1021])\u1031(\u1039[\u1000-\u1021])',
            to: '$1$2\u1031',
        },
        {
            from: '\u1038\u103a',
            to: '\u103a\u1038',
        },
        {
            from: '\u102d\u103a|\u103a\u102d',
            to: '\u102d',
        },
        {
            from: '\u102d\u102f\u103a',
            to: '\u102d\u102f',
        },
        {
            from: '\u0020\u1037',
            to: '\u1037',
        },
        {
            from: '\u1037\u1036',
            to: '\u1036\u1037',
        },
        {
            from: ' \u1037',
            to: '\u1037',
        },
        {
            from: '[\u102d]+',
            to: '\u102d',
        },
        {
            from: '[\u103a]+',
            to: '\u103a',
        },
        {
            from: '[\u103d]+',
            to: '\u103d',
        },
        {
            from: '[\u1037]+',
            to: '\u1037',
        },
        {
            from: '[\u102e]+',
            to: '\u102e',
        },
        {
            from: '\u102d\u102e|\u102e\u102d',
            to: '\u102e',
        },
        {
            from: '\u102f\u102d',
            to: '\u102d\u102f',
        },
        {
            from: '\u1037\u1037',
            to: '\u1037',
        },
        {
            from: '\u1032\u1032',
            to: '\u1032',
        },
        {
            from: '\u1044\u1004\u103a\u1038',
            to: '\u104E\u1004\u103a\u1038',
        },
        {
            from: '([\u102d\u102e])\u1039([\u1000-\u1021])',
            to: '\u1039$2$1',
        },
        {
            from: '\u1036\u103d',
            to: '\u103d\u1036',
        },
    ];
    return replaceWithRule(rule, output);
};
const uniNormalize = (output) => {
    if (!exports.isMyanmarText(output)) {
        return output;
    }
    const rule = [
        {
            from: '\u1025\u1013',
            to: '\u1026',
        },
        {
            from: '\u101e\u103c',
            to: '\u1029',
        },
        {
            from: '\u101e\u103c\u1031\u102c\u103A',
            to: '\u102A',
        },
        {
            from: '\u102F\u102D',
            to: '\u102D\u102F',
        },
    ];
    return replaceWithRule(rule, output);
};
exports.isUnicodeUser = () => {
    return exports.getBrowserFont() === 'Unicode';
};
exports.textToWrite = (output) => {
    return exports.isUnicodeUser() ? uniNormalize(output) : uniNormalize(exports.zg2uni(output));
};
exports.textToRead = (output) => {
    return exports.isUnicodeUser() ? output : exports.uni2zg(output);
};
exports.Virama = {
    getBrowserFont: exports.getBrowserFont,
    init,
    isMyanmarText: exports.isMyanmarText,
    isUnicodeUser: exports.isUnicodeUser,
    textToRead: exports.textToRead,
    textToWrite: exports.textToWrite,
    uni2zg: exports.uni2zg,
    zg2uni: exports.zg2uni,
};