swagger-ui/lib/shred.bundle.js
function(options) {
            // Prepare chars if needed
            if (!options.chars || (options.chars.length !== 128 && options.chars.length !== 256))
                throw new Error("Encoding '"+options.type+"' has incorrect 'chars' (must be of len 128 or 256)");
            
            if (options.chars.length === 128)
                options.chars = asciiString + options.chars;
            
            if (!options.charsBuf) {
                options.charsBuf = new Buffer(options.chars, 'ucs2');
            }
            
            if (!options.revCharsBuf) {
                options.revCharsBuf = new Buffer(65536);
                var defChar = iconv.defaultCharSingleByte.charCodeAt(0);
                for (var i = 0; i < options.revCharsBuf.length; i++)
                    options.revCharsBuf[i] = defChar;
                for (var i = 0; i < options.chars.length; i++)
                    options.revCharsBuf[options.chars.charCodeAt(i)] = i;
            }
            
            return {
                toEncoding: function(str) {
                    str = ensureString(str);
                    
                    var buf = new Buffer(str.length);
                    var revCharsBuf = options.revCharsBuf;
                    for (var i = 0; i < str.length; i++)
                        buf[i] = revCharsBuf[str.charCodeAt(i)];
                    
                    return buf;
                },
                fromEncoding: function(buf) {
                    buf = ensureBuffer(buf);
                    
                    // Strings are immutable in JS -> we use ucs2 buffer to speed up computations.
                    var charsBuf = options.charsBuf;
                    var newBuf = new Buffer(buf.length*2);
                    var idx1 = 0, idx2 = 0;
                    for (var i = 0, _len = buf.length; i < _len; i++) {
                        idx1 = buf[i]*2; idx2 = i*2;
                        newBuf[idx2] = charsBuf[idx1];
                        newBuf[idx2+1] = charsBuf[idx1+1];
                    }
                    return newBuf.toString('ucs2');
                }
            };
        }
function(options) {
            // Prepare chars if needed
            if (!options.chars || (options.chars.length !== 128 && options.chars.length !== 256))
                throw new Error("Encoding '"+options.type+"' has incorrect 'chars' (must be of len 128 or 256)");
            
            if (options.chars.length === 128)
                options.chars = asciiString + options.chars;
            
            if (!options.charsBuf) {
                options.charsBuf = new Buffer(options.chars, 'ucs2');
            }
            
            if (!options.revCharsBuf) {
                options.revCharsBuf = new Buffer(65536);
                var defChar = iconv.defaultCharSingleByte.charCodeAt(0);
                for (var i = 0; i < options.revCharsBuf.length; i++)
                    options.revCharsBuf[i] = defChar;
                for (var i = 0; i < options.chars.length; i++)
                    options.revCharsBuf[options.chars.charCodeAt(i)] = i;
            }
            
            return {
                toEncoding: function(str) {
                    str = ensureString(str);
                    
                    var buf = new Buffer(str.length);
                    var revCharsBuf = options.revCharsBuf;
                    for (var i = 0; i < str.length; i++)
                        buf[i] = revCharsBuf[str.charCodeAt(i)];
                    
                    return buf;
                },
                fromEncoding: function(buf) {
                    buf = ensureBuffer(buf);
                    
                    // Strings are immutable in JS -> we use ucs2 buffer to speed up computations.
                    var charsBuf = options.charsBuf;
                    var newBuf = new Buffer(buf.length*2);
                    var idx1 = 0, idx2 = 0;
                    for (var i = 0, _len = buf.length; i < _len; i++) {
                        idx1 = buf[i]*2; idx2 = i*2;
                        newBuf[idx2] = charsBuf[idx1];
                        newBuf[idx2+1] = charsBuf[idx1+1];
                    }
                    return newBuf.toString('ucs2');
                }
            };
        }
Codepage single-byte encodings.