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