Class Primitive

src/main/java/net/minecraft/nbt/JsonToNBT.java:437–552

    }

    static class Primitive extends JsonToNBT.Any
    {
        private static final Pattern DOUBLE = Pattern.compile("[-+]?[0-9]*\\.?[0-9]+[d|D]");
        private static final Pattern FLOAT = Pattern.compile("[-+]?[0-9]*\\.?[0-9]+[f|F]");
        private static final Pattern BYTE = Pattern.compile("[-+]?[0-9]+[b|B]");
        private static final Pattern LONG = Pattern.compile("[-+]?[0-9]+[l|L]");
        private static final Pattern SHORT = Pattern.compile("[-+]?[0-9]+[s|S]");
        private static final Pattern INTEGER = Pattern.compile("[-+]?[0-9]+");
        private static final Pattern DOUBLE_UNTYPED = Pattern.compile("[-+]?[0-9]*\\.?[0-9]+");
        private static final Splitter SPLITTER = Splitter.on(',').omitEmptyStrings();
        protected String jsonValue;

        public Primitive(String p_i45139_1_, String p_i45139_2_)
        {
            this.json = p_i45139_1_;
            this.jsonValue = p_i45139_2_;
        }

        public NBTBase parse() throws NBTException
        {
            try
            {
                if (DOUBLE.matcher(this.jsonValue).matches())
                {
                    return new NBTTagDouble(Double.parseDouble(this.jsonValue.substring(0, this.jsonValue.length() - 1)));
                }

                if (FLOAT.matcher(this.jsonValue).matches())
                {
                    return new NBTTagFloat(Float.parseFloat(this.jsonValue.substring(0, this.jsonValue.length() - 1)));
                }

                if (BYTE.matcher(this.jsonValue).matches())
                {
                    return new NBTTagByte(Byte.parseByte(this.jsonValue.substring(0, this.jsonValue.length() - 1)));
                }

                if (LONG.matcher(this.jsonValue).matches())
                {
                    return new NBTTagLong(Long.parseLong(this.jsonValue.substring(0, this.jsonValue.length() - 1)));
                }

                if (SHORT.matcher(this.jsonValue).matches())
                {
                    return new NBTTagShort(Short.parseShort(this.jsonValue.substring(0, this.jsonValue.length() - 1)));
                }

                if (INTEGER.matcher(this.jsonValue).matches())
                {
                    return new NBTTagInt(Integer.parseInt(this.jsonValue));
                }

                if (DOUBLE_UNTYPED.matcher(this.jsonValue).matches())
                {
                    return new NBTTagDouble(Double.parseDouble(this.jsonValue));
                }

                if (this.jsonValue.equalsIgnoreCase("true") || this.jsonValue.equalsIgnoreCase("false"))