wishthis/node_modules/css-line-break/dist/lib/Util.js

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2022-11-19 15:34:10 +00:00
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.polyUint32Array = exports.polyUint16Array = exports.decode = exports.fromCodePoint = exports.toCodePoints = void 0;
var toCodePoints = function (str) {
var codePoints = [];
var i = 0;
var length = str.length;
while (i < length) {
var value = str.charCodeAt(i++);
if (value >= 0xd800 && value <= 0xdbff && i < length) {
var extra = str.charCodeAt(i++);
if ((extra & 0xfc00) === 0xdc00) {
codePoints.push(((value & 0x3ff) << 10) + (extra & 0x3ff) + 0x10000);
}
else {
codePoints.push(value);
i--;
}
}
else {
codePoints.push(value);
}
}
return codePoints;
};
exports.toCodePoints = toCodePoints;
var fromCodePoint = function () {
var codePoints = [];
for (var _i = 0; _i < arguments.length; _i++) {
codePoints[_i] = arguments[_i];
}
if (String.fromCodePoint) {
return String.fromCodePoint.apply(String, codePoints);
}
var length = codePoints.length;
if (!length) {
return '';
}
var codeUnits = [];
var index = -1;
var result = '';
while (++index < length) {
var codePoint = codePoints[index];
if (codePoint <= 0xffff) {
codeUnits.push(codePoint);
}
else {
codePoint -= 0x10000;
codeUnits.push((codePoint >> 10) + 0xd800, (codePoint % 0x400) + 0xdc00);
}
if (index + 1 === length || codeUnits.length > 0x4000) {
result += String.fromCharCode.apply(String, codeUnits);
codeUnits.length = 0;
}
}
return result;
};
exports.fromCodePoint = fromCodePoint;
var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
// Use a lookup table to find the index.
var lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);
for (var i = 0; i < chars.length; i++) {
lookup[chars.charCodeAt(i)] = i;
}
var decode = function (base64) {
var bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;
if (base64[base64.length - 1] === '=') {
bufferLength--;
if (base64[base64.length - 2] === '=') {
bufferLength--;
}
}
var buffer = typeof ArrayBuffer !== 'undefined' &&
typeof Uint8Array !== 'undefined' &&
typeof Uint8Array.prototype.slice !== 'undefined'
? new ArrayBuffer(bufferLength)
: new Array(bufferLength);
var bytes = Array.isArray(buffer) ? buffer : new Uint8Array(buffer);
for (i = 0; i < len; i += 4) {
encoded1 = lookup[base64.charCodeAt(i)];
encoded2 = lookup[base64.charCodeAt(i + 1)];
encoded3 = lookup[base64.charCodeAt(i + 2)];
encoded4 = lookup[base64.charCodeAt(i + 3)];
bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
}
return buffer;
};
exports.decode = decode;
var polyUint16Array = function (buffer) {
var length = buffer.length;
var bytes = [];
for (var i = 0; i < length; i += 2) {
bytes.push((buffer[i + 1] << 8) | buffer[i]);
}
return bytes;
};
exports.polyUint16Array = polyUint16Array;
var polyUint32Array = function (buffer) {
var length = buffer.length;
var bytes = [];
for (var i = 0; i < length; i += 4) {
bytes.push((buffer[i + 3] << 24) | (buffer[i + 2] << 16) | (buffer[i + 1] << 8) | buffer[i]);
}
return bytes;
};
exports.polyUint32Array = polyUint32Array;
//# sourceMappingURL=Util.js.map