@zxing/text-encoding
Version:
Polyfill for the Encoding Living Standard's API.
39 lines • 1.63 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
var encodings_1 = require("../../encoding/encodings");
var finished_1 = require("../../encoding/finished");
var terminology_1 = require("../../encoding/terminology");
var utilities_1 = require("../../encoding/utilities");
/**
* @constructor
* @implements {Encoder}
* @param {{fatal: boolean}} options
*/
var XUserDefinedEncoder = /** @class */ (function () {
function XUserDefinedEncoder(options) {
this.fatal = options.fatal;
}
/**
* @param {Stream} stream Input stream.
* @param {number} code_point Next code point read from the stream.
* @return {(number|!Array.<number>)} Byte(s) to emit.
*/
XUserDefinedEncoder.prototype.handler = function (stream, code_point) {
// 1.If code point is end-of-stream, return finished.
if (code_point === terminology_1.end_of_stream)
return finished_1.finished;
// 2. If code point is an ASCII code point, return a byte whose
// value is code point.
if (terminology_1.isASCIICodePoint(code_point))
return code_point;
// 3. If code point is in the range U+F780 to U+F7FF, inclusive,
// return a byte whose value is code point − 0xF780 + 0x80.
if (utilities_1.inRange(code_point, 0xF780, 0xF7FF))
return code_point - 0xF780 + 0x80;
// 4. Return error with code point.
return encodings_1.encoderError(code_point);
};
return XUserDefinedEncoder;
}());
exports.XUserDefinedEncoder = XUserDefinedEncoder;
//# sourceMappingURL=XUserDefinedEncoder.js.map