hunspell-reader/dist/textUtils.js

A library for reading Hunspell Dictionary Files

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.removeLooseAccents = exports.removeAccents = exports.toRange = exports.escapeUnicodeCode = void 0;
/**
 * Escape Unicode Characters
 * @param text
 * @param regexp
 * @returns
 */
function escapeUnicodeCode(text, regexp = /\p{M}/gu) {
    return text.replace(regexp, replaceWithUnicode);
}
exports.escapeUnicodeCode = escapeUnicodeCode;
function replaceWithUnicode(substring) {
    const start = 0x20;
    const end = 0x7a;
    let val = '';
    for (let i = 0; i < substring.length; ++i) {
        const char = substring[i];
        const code = char.charCodeAt(0);
        if (code >= start && code <= end) {
            val += char;
            continue;
        }
        const hex = '0000' + code.toString(16);
        val += code < 256 ? '\\x' + hex.slice(-2) : '\\u' + hex.slice(-4);
    }
    return val;
}
/**
 * Converts a string of letters in ranges.
 *
 * `abcde` => `a-e`
 *
 * @param letters - sorted letters
 */
function toRange(letters, minLength = 4) {
    const chars = [];
    let begin = 0;
    let end = 0;
    let endChar = '';
    const minDiff = Math.max(minLength - 2, 1);
    function fill() {
        if (!(end - begin > 1))
            return;
        if (end - begin > minDiff) {
            chars.push('-');
            return;
        }
        for (let code = begin + 1; code < end; code += 1) {
            chars.push(String.fromCharCode(code));
        }
    }
    function pushRange() {
        fill();
        chars.push(endChar);
        endChar = '';
    }
    for (let i = 0; i < letters.length; ++i) {
        const letter = letters[i];
        const code = letter.charCodeAt(0);
        if (code - end === 1) {
            end = code;
            endChar = letter;
            continue;
        }
        pushRange();
        chars.push(letter);
        begin = code;
        end = code;
    }
    pushRange();
    return chars.join('');
}
exports.toRange = toRange;
function removeAccents(text) {
    return removeLooseAccents(text.normalize('NFD'));
}
exports.removeAccents = removeAccents;
function removeLooseAccents(text) {
    return text.replace(/\p{M}/gu, '');
}
exports.removeLooseAccents = removeLooseAccents;
//# sourceMappingURL=textUtils.js.map