30 lines
746 B
JavaScript
30 lines
746 B
JavaScript
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'use strict';
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const Iconv = require('iconv-lite');
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exports.decode = function(buffer, encoding, start, end, options) {
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if (Buffer.isEncoding(encoding)) {
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return buffer.toString(encoding, start, end);
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}
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const decoder = Iconv.getDecoder(encoding, options || {});
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const res = decoder.write(buffer.slice(start, end));
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const trail = decoder.end();
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return trail ? res + trail : res;
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};
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exports.encode = function(string, encoding, options) {
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if (Buffer.isEncoding(encoding)) {
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return Buffer.from(string, encoding);
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}
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const encoder = Iconv.getEncoder(encoding, options || {});
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const res = encoder.write(string);
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const trail = encoder.end();
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return trail && trail.length > 0 ? Buffer.concat([res, trail]) : res;
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};
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