public static byte[] ToBinary(string hex_string)
{
const string CODELIST_DIG = "0123456789ABCDEF";
var data = new byte[(hex_string.Length + 1) / 2];
var data_size = 0;
var hex_data_value = (byte)0;
var hex_data_exist = false;
hex_string = hex_string.ToUpper();
foreach (var code in hex_string)
{
hex_data_value = (byte)((hex_data_value << 4) | CODELIST_DIG.IndexOf(code));
if (hex_data_exist)
{
data[data_size++] = hex_data_value;
hex_data_value = 0;
}
hex_data_exist = !hex_data_exist;
}
if (hex_data_exist)
{
data[data_size] = hex_data_value;
}
return(data);
}
public static string ParseCodeText(string text, bool parse_special_code)
{
const string CODELIST_DIG = "0123456789ABCDEF";
const char CODELIST_SPACE = ' '; //
const string CODELIST_SPECIAL = "$*";
char[] CODE_TEXTBLOCK = { '\'', '\'' }; // 'xxx'
char[] CODE_TYPEBLOCK = { '<', '>' }; // <xxx>
var collector = new StringBuilder(text.Length * 2);
var mode = ParseMode.HexData;
var code_temp = char.MinValue;
var hex_data_exist = false;
var text_data_escape = false;
var text_data_builder = new StringBuilder();
var text_data_encoder = Encoding.UTF8;
foreach (var code in text)
{
switch (mode)
{
/* === デフォルトモード === */
case ParseMode.HexData:
{
if (code == CODE_TEXTBLOCK[0])
{
/* --- テキスト解析モードに移行 --- */
mode = ParseMode.TextData;
if (hex_data_exist)
{
collector.Append(CODELIST_DIG[0]);
hex_data_exist = false;
}
}
else if (code == CODE_TYPEBLOCK[0])
{
/* --- 文字コード指定モードに移行 --- */
mode = ParseMode.CharCode;
if (hex_data_exist)
{
collector.Append(CODELIST_DIG[0]);
hex_data_exist = false;
}
}
else
{
/* --- 16進文字列を解析 --- */
/* 常に大文字で処理 */
code_temp = char.ToUpper(code);
/* 16進文字列かどうかをチェック */
if (CODELIST_DIG.Contains(code_temp))
{
hex_data_exist = !hex_data_exist;
collector.Append(code_temp);
}
else if (code == CODELIST_SPACE)
{
/* --- 空白文字 --- */
hex_data_exist = false;
}
else if ((parse_special_code) && (CODELIST_SPECIAL.Contains(code_temp)))
{
/* 特殊文字を許可するかどうか */
collector.Append(code_temp);
}
else
{
/* --- 解析不能コード --- */
return(null);
}
}
}
break;
case ParseMode.TextData:
{
if ((!text_data_escape) && (code == '\\'))
{
/* --- エスケープシーケンス --- */
text_data_escape = true;
}
else if ((!text_data_escape) && (code == CODE_TEXTBLOCK[1]))
{
/* --- バイナリ解析モードへ移行 --- */
if (text_data_builder.Length > 0)
{
foreach (var byte_text in text_data_encoder.GetBytes(text_data_builder.ToString()))
{
collector.Append(byte_text.ToString("X2"));
}
text_data_builder.Clear();
}
mode = ParseMode.HexData;
/* --- 特殊文字収集 --- */
}
else if (text_data_escape)
{
switch (code)
{
case 'n': text_data_builder.Append('\n'); break;
default: text_data_builder.Append(code); break;
}
text_data_escape = false;
}
else
{
/* --- 通常文字収集 --- */
text_data_builder.Append(code);
}
}
break;
case ParseMode.CharCode:
{
if (code == CODE_TYPEBLOCK[1])
{
/* --- バイナリ解析モードへ移行 --- */
if (text_data_builder.Length > 0)
{
try {
text_data_encoder = Encoding.GetEncoding(text_data_builder.ToString());
} catch {
return(null);
}
text_data_builder.Clear();
}
mode = ParseMode.HexData;
}
else
{
/* --- 文字収集 --- */
text_data_builder.Append(code);
}
}
break;
}
}
/* 16進モード以外で終了した場合はエラー */
if (mode != ParseMode.HexData)
{
return(null);
}
/* 最終データ収集 */
if (hex_data_exist)
{
collector.Append(CODELIST_DIG[0]);
}
return(collector.ToString());
}
public static byte[][] ToByteArrayMap(string text)
{
if (text == null)
{
return(null);
}
const string CODELIST_DIG = "0123456789ABCDEF";
const char CODELIST_SPACE = ' '; //
const char CODELIST_SPARATOR = '|';
char[] CODE_TEXTBLOCK = { '\'', '\'' }; // 'xxx'
char[] CODE_TYPEBLOCK = { '<', '>' }; // <xxx>
var data_map = new Queue <byte[]>();
var data_buffer = new List <byte>();
var mode = ParseMode.HexData;
var code_temp = char.MinValue;
var hex_data_value = (byte)0;
var hex_data_exist = false;
var text_data_escape = false;
var text_data_builder = new StringBuilder();
var text_data_encoder = Encoding.UTF8;
foreach (var code in text)
{
switch (mode)
{
/* === デフォルトモード === */
case ParseMode.HexData:
{
if (code == CODELIST_SPARATOR)
{
/* --- 新しいデータに移行 --- */
if (data_buffer.Count > 0)
{
data_map.Enqueue(data_buffer.ToArray());
data_buffer = new List <byte>();
}
}
else if (code == CODE_TEXTBLOCK[0])
{
/* --- テキスト解析モードに移行 --- */
mode = ParseMode.TextData;
}
else if (code == CODE_TYPEBLOCK[0])
{
/* --- 文字コード指定モードに移行 --- */
mode = ParseMode.CharCode;
}
else
{
/* --- 16進文字列を解析 --- */
/* 常に大文字で処理 */
code_temp = char.ToUpper(code);
/* 16進文字列かどうかをチェック */
if (CODELIST_DIG.Contains(code_temp))
{
hex_data_value = (byte)(((hex_data_value << 4) & 0xF0) | (CODELIST_DIG.IndexOf(code_temp)));
hex_data_exist = !hex_data_exist;
/* 2バイト集まったら収集 */
if (!hex_data_exist)
{
data_buffer.Add(hex_data_value);
hex_data_value = 0x00;
}
}
else if (code == CODELIST_SPACE)
{
/* --- 空白文字 --- */
/* データが存在する場合は強制適用 */
if (hex_data_exist)
{
data_buffer.Add(hex_data_value);
hex_data_value = 0x00;
hex_data_exist = false;
}
}
else
{
/* --- 解析不能コード --- */
return(null);
}
}
}
break;
case ParseMode.TextData:
{
if ((!text_data_escape) && (code == '\\'))
{
/* --- エスケープシーケンス --- */
text_data_escape = true;
}
else if ((!text_data_escape) && (code == CODE_TEXTBLOCK[1]))
{
/* --- バイナリ解析モードへ移行 --- */
if (text_data_builder.Length > 0)
{
data_buffer.AddRange(text_data_encoder.GetBytes(text_data_builder.ToString()));
text_data_builder.Clear();
}
mode = ParseMode.HexData;
/* --- 特殊文字収集 --- */
}
else if (text_data_escape)
{
switch (code)
{
case 'n': text_data_builder.Append('\n'); break;
default: text_data_builder.Append(code); break;
}
text_data_escape = false;
}
else
{
/* --- 文字収集 --- */
text_data_builder.Append(code);
}
}
break;
case ParseMode.CharCode:
{
if (code == CODE_TYPEBLOCK[1])
{
/* --- バイナリ解析モードへ移行 --- */
if (text_data_builder.Length > 0)
{
try {
text_data_encoder = Encoding.GetEncoding(text_data_builder.ToString());
} catch {
return(null);
}
text_data_builder.Clear();
}
mode = ParseMode.HexData;
}
else
{
/* --- 文字収集 --- */
text_data_builder.Append(code);
}
}
break;
}
}
/* 16進モード以外で終了した場合はエラー */
if (mode != ParseMode.HexData)
{
return(null);
}
/* 最終データ収集 */
if (hex_data_exist)
{
data_buffer.Add(hex_data_value);
}
/* 最後のデータをリストに追加 */
if (data_buffer.Count > 0)
{
data_map.Enqueue(data_buffer.ToArray());
}
return(data_map.ToArray());
}
