Brunobkr/llama.cpp_AlgMor24_github

1"use strict";2 3var Buffer = require("safer-buffer").Buffer;4 5var bomHandling = require("./bom-handling"),6    iconv = module.exports;7 8// All codecs and aliases are kept here, keyed by encoding name/alias.9// They are lazy loaded in `iconv.getCodec` from `encodings/index.js`.10iconv.encodings = null;11 12// Characters emitted in case of error.13iconv.defaultCharUnicode = '�';14iconv.defaultCharSingleByte = '?';15 16// Public API.17iconv.encode = function encode(str, encoding, options) {18    str = "" + (str || ""); // Ensure string.19 20    var encoder = iconv.getEncoder(encoding, options);21 22    var res = encoder.write(str);23    var trail = encoder.end();24    25    return (trail && trail.length > 0) ? Buffer.concat([res, trail]) : res;26}27 28iconv.decode = function decode(buf, encoding, options) {29    if (typeof buf === 'string') {30        if (!iconv.skipDecodeWarning) {31            console.error('Iconv-lite warning: decode()-ing strings is deprecated. Refer to https://github.com/ashtuchkin/iconv-lite/wiki/Use-Buffers-when-decoding');32            iconv.skipDecodeWarning = true;33        }34 35        buf = Buffer.from("" + (buf || ""), "binary"); // Ensure buffer.36    }37 38    var decoder = iconv.getDecoder(encoding, options);39 40    var res = decoder.write(buf);41    var trail = decoder.end();42 43    return trail ? (res + trail) : res;44}45 46iconv.encodingExists = function encodingExists(enc) {47    try {48        iconv.getCodec(enc);49        return true;50    } catch (e) {51        return false;52    }53}54 55// Legacy aliases to convert functions56iconv.toEncoding = iconv.encode;57iconv.fromEncoding = iconv.decode;58 59// Search for a codec in iconv.encodings. Cache codec data in iconv._codecDataCache.60iconv._codecDataCache = {};61iconv.getCodec = function getCodec(encoding) {62    if (!iconv.encodings)63        iconv.encodings = require("../encodings"); // Lazy load all encoding definitions.64    65    // Canonicalize encoding name: strip all non-alphanumeric chars and appended year.66    var enc = iconv._canonicalizeEncoding(encoding);67 68    // Traverse iconv.encodings to find actual codec.69    var codecOptions = {};70    while (true) {71        var codec = iconv._codecDataCache[enc];72        if (codec)73            return codec;74 75        var codecDef = iconv.encodings[enc];76 77        switch (typeof codecDef) {78            case "string": // Direct alias to other encoding.79                enc = codecDef;80                break;81 82            case "object": // Alias with options. Can be layered.83                for (var key in codecDef)84                    codecOptions[key] = codecDef[key];85 86                if (!codecOptions.encodingName)87                    codecOptions.encodingName = enc;88                89                enc = codecDef.type;90                break;91 92            case "function": // Codec itself.93                if (!codecOptions.encodingName)94                    codecOptions.encodingName = enc;95 96                // The codec function must load all tables and return object with .encoder and .decoder methods.97                // It'll be called only once (for each different options object).98                codec = new codecDef(codecOptions, iconv);99 100                iconv._codecDataCache[codecOptions.encodingName] = codec; // Save it to be reused later.101                return codec;102 103            default:104                throw new Error("Encoding not recognized: '" + encoding + "' (searched as: '"+enc+"')");105        }106    }107}108 109iconv._canonicalizeEncoding = function(encoding) {110    // Canonicalize encoding name: strip all non-alphanumeric chars and appended year.111    return (''+encoding).toLowerCase().replace(/:\d{4}$|[^0-9a-z]/g, "");112}113 114iconv.getEncoder = function getEncoder(encoding, options) {115    var codec = iconv.getCodec(encoding),116        encoder = new codec.encoder(options, codec);117 118    if (codec.bomAware && options && options.addBOM)119        encoder = new bomHandling.PrependBOM(encoder, options);120 121    return encoder;122}123 124iconv.getDecoder = function getDecoder(encoding, options) {125    var codec = iconv.getCodec(encoding),126        decoder = new codec.decoder(options, codec);127 128    if (codec.bomAware && !(options && options.stripBOM === false))129        decoder = new bomHandling.StripBOM(decoder, options);130 131    return decoder;132}133 134// Streaming API135// NOTE: Streaming API naturally depends on 'stream' module from Node.js. Unfortunately in browser environments this module can add136// up to 100Kb to the output bundle. To avoid unnecessary code bloat, we don't enable Streaming API in browser by default.137// If you would like to enable it explicitly, please add the following code to your app:138// > iconv.enableStreamingAPI(require('stream'));139iconv.enableStreamingAPI = function enableStreamingAPI(stream_module) {140    if (iconv.supportsStreams)141        return;142 143    // Dependency-inject stream module to create IconvLite stream classes.144    var streams = require("./streams")(stream_module);145 146    // Not public API yet, but expose the stream classes.147    iconv.IconvLiteEncoderStream = streams.IconvLiteEncoderStream;148    iconv.IconvLiteDecoderStream = streams.IconvLiteDecoderStream;149 150    // Streaming API.151    iconv.encodeStream = function encodeStream(encoding, options) {152        return new iconv.IconvLiteEncoderStream(iconv.getEncoder(encoding, options), options);153    }154 155    iconv.decodeStream = function decodeStream(encoding, options) {156        return new iconv.IconvLiteDecoderStream(iconv.getDecoder(encoding, options), options);157    }158 159    iconv.supportsStreams = true;160}161 162// Enable Streaming API automatically if 'stream' module is available and non-empty (the majority of environments).163var stream_module;164try {165    stream_module = require("stream");166} catch (e) {}167 168if (stream_module && stream_module.Transform) {169    iconv.enableStreamingAPI(stream_module);170 171} else {172    // In rare cases where 'stream' module is not available by default, throw a helpful exception.173    iconv.encodeStream = iconv.decodeStream = function() {174        throw new Error("iconv-lite Streaming API is not enabled. Use iconv.enableStreamingAPI(require('stream')); to enable it.");175    };176}177 178if ("Ā" != "\u0100") {179    console.error("iconv-lite warning: js files use non-utf8 encoding. See https://github.com/ashtuchkin/iconv-lite/wiki/Javascript-source-file-encodings for more info.");180}181