Don't allow invalid encodings in StringDecoder class
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@ -19,8 +19,15 @@
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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function assertEncoding(encoding) {
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if (encoding && !Buffer.isEncoding(encoding)) {
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throw new Error('Unknown encoding: ' + encoding);
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}
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}
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var StringDecoder = exports.StringDecoder = function(encoding) {
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this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, '');
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assertEncoding(encoding);
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switch (this.encoding) {
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case 'utf8':
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// CESU-8 represents each of Surrogate Pair by 3-bytes
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