current/Global/Functions.pas

unit Functions;

interface

uses TypeDefs, Classes;

function BoolToStr(bool: Boolean): String;
function Decode_Int(buffer: TByteData): LongWord;
function Encode_Int(input: LongWord): TByteData;
function Decode_Float(buffer: TByteData): Single;
function Encode_Float(input: Single): TByteData;
function IntToBin(Value: Byte): String;
function DataToBin(Data: TByteData): String;
function BinToInt(bin: String): Byte;
function MakeDatLink(FileID: Integer): Integer;

function StringSmaller(string1, string2: String): Boolean;

function FormatNumber(Value: LongWord; Width: Byte; leadingzeros: Char): String;
function FormatFileSize(size: LongWord): String;
function CreateHexString(Data: TByteData; HexOnly: Boolean): String;
function DecodeHexString(hex: String): TByteData;
function GetWinFileName(Name: String): String;
//function GetExtractPath: String;

function Explode(_string: String; delimiter: Char): TStrings;


implementation

uses SysUtils, Math, StrUtils;

type
  TValueSwitcher = record
    case IsFloat: Boolean of
      True: (ValueFloat: Single);
      False: (ValueInt: LongWord);
  end;


function BoolToStr(bool: Boolean): String;
begin
  if bool then
    Result := 'true'
  else
    Result := 'false';
end;


function Decode_Int(buffer: TByteData): LongWord;
begin
  Result := buffer[0] + buffer[1] * 256 + buffer[2] * 256 * 256 + buffer[3] * 256 * 256 * 256;
end;


function Encode_Int(input: LongWord): TByteData;
begin
  SetLength(Result, 4);
  Result[0] := input mod 256;
  input     := input div 256;
  Result[1] := input mod 256;
  input     := input div 256;
  Result[2] := input mod 256;
  input     := input div 256;
  Result[3] := input mod 256;
end;


function Decode_Float(buffer: TByteData): Single;
var
  _valueswitcher: TValueSwitcher;
begin
  _valueswitcher.ValueInt := Decode_Int(buffer);
  Result := _valueswitcher.ValueFloat;
  if IsNAN(Result) then
    Result := 0.0;
end;


function Encode_Float(input: Single): TByteData;
var
  _valueswitcher: TValueSwitcher;
begin
  _valueswitcher.ValueFloat := input;
  Result := Encode_Int(_valueswitcher.ValueInt);
end;


function IntToBin(Value: Byte): String;
var
  i: Byte;
begin
  Result := '';
  for i := 7 downto 0 do
    Result := Result + IntToStr((Value shr i) and $01);
end;


function DataToBin(Data: TByteData): String;
var
  i, j:     Byte;
  singlebyte: Byte;
  bytepart: String;
begin
  SetLength(bytepart, 8);
  Result := '';
  for i := 0 to High(Data) do
  begin
    singlebyte := Data[i];
    for j := 7 downto 0 do
    begin
      bytepart[j + 1] := Char((singlebyte and $01) + 48);
      singlebyte      := singlebyte shr 1;
    end;
    Result := Result + bytepart + ' ';
  end;
end;


function BinToInt(bin: String): Byte;
var
  Add: Integer;
  i:   Byte;
begin
  Result := 0;
  if Length(bin) <> 8 then
    Exit;
  Add := 1;
  for i := 8 downto 1 do
  begin
    if not (bin[i] in ['0', '1']) then
      Exit;
    if bin[i] = '1' then
      Inc(Result, Add);
    Add := Add shl 1;
  end;
end;


function MakeDatLink(FileID: Integer): Integer;
begin
  Result := FileID * 256 + 1;
end;


function FormatNumber(Value: LongWord; Width: Byte; leadingzeros: Char): String;
begin
  Result := AnsiReplaceStr(Format('%' + IntToStr(Width) + 'u', [Value]), ' ', leadingzeros);
end;


function FormatFileSize(size: LongWord): String;
var
  floatformat: TFormatSettings;
begin
  floatformat.DecimalSeparator := '.';
  if size >= 1000 * 1024 * 1024 then
    Result := FloatToStrF(size / 1024 / 1024 / 1024, ffFixed, 5, 1, floatformat) + ' GB'
  else
    if size >= 1000 * 1024 then
      Result := FloatToStrF(size / 1024 / 1024, ffFixed, 5, 1, floatformat) + ' MB'
    else
      if size >= 1000 then
        Result := FloatToStrF(size / 1024, ffFixed, 5, 1, floatformat) + ' KB'
      else
        Result := IntToStr(size) + ' B';
end;


function CreateHexString(Data: TByteData; HexOnly: Boolean): String;
var
  string_build, ascii_version: String;
  i: Integer;
begin
  string_build  := '';
  ascii_version := '';
  for i := 0 to High(Data) do
  begin
    if not HexOnly then
      if (i mod 16) = 0 then
        string_build := string_build + '0x' + IntToHex(i, 6) + '  ';
    string_build := string_build + IntToHex(Data[i], 2);
    if not HexOnly then
    begin
      if Data[i] >= 32 then
        ascii_version := ascii_version + Chr(Data[i])
      else
        ascii_version := ascii_version + '.';
      if ((i + 1) mod 2) = 0 then
        string_build := string_build + #32;
      if ((i + 1) mod 16) = 0 then
      begin
        string_build  := string_build + #32 + ascii_version + CrLf;
        ascii_version := '';
      end;
    end;
  end;
  Result := string_build;
end;


function DecodeHexString(hex: String): TByteData;
var
  i: Integer;
begin
  SetLength(Result, Length(hex) div 2);
  for i := 0 to Length(Result) do
  begin
    Result[i] := 0;
    case UpCase(hex[1 + i * 2]) of
      '0'..'9':
        Result[i] := (Ord(UpCase(hex[1 + i * 2])) - 48) * 16;
      'A'..'F':
        Result[i] := (Ord(UpCase(hex[1 + i * 2])) - 55) * 16;
    end;
    case UpCase(hex[1 + i * 2 + 1]) of
      '0'..'9':
        Result[i] := Result[i] + (Ord(UpCase(hex[1 + i * 2 + 1])) - 48);
      'A'..'F':
        Result[i] := Result[i] + (Ord(UpCase(hex[1 + i * 2 + 1])) - 55);
    end;
  end;
end;


function StringSmaller(string1, string2: String): Boolean;
var
  i:   Integer;
  len: Integer;
begin
  len := Min(Length(string1), Length(string2));
  for i := 1 to len do
    if Ord(string1[i]) <> Ord(string2[i]) then
    begin
      Result := Ord(string1[i]) < Ord(string2[i]);
      Exit;
    end;
  Result := Length(string1) < Length(string2);
end;


function Explode(_string: String; delimiter: Char): TStrings;
var
  start, len: Word;
begin
  Result := TStringList.Create;
  start := 1;
  while PosEx(delimiter, _string, start) > 0 do
  begin
    len := PosEx(delimiter, _string, start) - start;
    Result.Add(MidStr(_string, start, len));
    start := start + len + 1;
  end;
  Result.Add(MidStr(_string, start, Length(_string) - start + 1));
end;


function GetWinFileName(Name: String): String;
begin
  Result := Name;
  Result := AnsiReplaceStr(Result, '\', '__');
  Result := AnsiReplaceStr(Result, '/', '__');
  Result := AnsiReplaceStr(Result, '>', '__');
  Result := AnsiReplaceStr(Result, '<', '__');
end;


end.
Revision:	113
Committed:	Sun Feb 25 17:20:22 2007 UTC (18 years, 7 months ago) by alloc
Content type:	text/x-pascal
File size:	6612 byte(s)
Log Message:
#	Content
1	unit Functions;
2
3	interface
4
5	uses TypeDefs, Classes;
6
7	function BoolToStr(bool: Boolean): String;
8	function Decode_Int(buffer: TByteData): LongWord;
9	function Encode_Int(input: LongWord): TByteData;
10	function Decode_Float(buffer: TByteData): Single;
11	function Encode_Float(input: Single): TByteData;
12	function IntToBin(Value: Byte): String;
13	function DataToBin(Data: TByteData): String;
14	function BinToInt(bin: String): Byte;
15	function MakeDatLink(FileID: Integer): Integer;
16
17	function StringSmaller(string1, string2: String): Boolean;
18
19	function FormatNumber(Value: LongWord; Width: Byte; leadingzeros: Char): String;
20	function FormatFileSize(size: LongWord): String;
21	function CreateHexString(Data: TByteData; HexOnly: Boolean): String;
22	function DecodeHexString(hex: String): TByteData;
23	function GetWinFileName(Name: String): String;
24	//function GetExtractPath: String;
25
26	function Explode(_string: String; delimiter: Char): TStrings;
27
28
29	implementation
30
31	uses SysUtils, Math, StrUtils;
32
33	type
34	TValueSwitcher = record
35	case IsFloat: Boolean of
36	True: (ValueFloat: Single);
37	False: (ValueInt: LongWord);
38	end;
39
40
41
42	function BoolToStr(bool: Boolean): String;
43	begin
44	if bool then
45	Result := 'true'
46	else
47	Result := 'false';
48	end;
49
50
51	function Decode_Int(buffer: TByteData): LongWord;
52	begin
53	Result := buffer[0] + buffer[1] * 256 + buffer[2] * 256 * 256 + buffer[3] * 256 * 256 * 256;
54	end;
55
56
57	function Encode_Int(input: LongWord): TByteData;
58	begin
59	SetLength(Result, 4);
60	Result[0] := input mod 256;
61	input := input div 256;
62	Result[1] := input mod 256;
63	input := input div 256;
64	Result[2] := input mod 256;
65	input := input div 256;
66	Result[3] := input mod 256;
67	end;
68
69
70	function Decode_Float(buffer: TByteData): Single;
71	var
72	_valueswitcher: TValueSwitcher;
73	begin
74	_valueswitcher.ValueInt := Decode_Int(buffer);
75	Result := _valueswitcher.ValueFloat;
76	if IsNAN(Result) then
77	Result := 0.0;
78	end;
79
80
81	function Encode_Float(input: Single): TByteData;
82	var
83	_valueswitcher: TValueSwitcher;
84	begin
85	_valueswitcher.ValueFloat := input;
86	Result := Encode_Int(_valueswitcher.ValueInt);
87	end;
88
89
90	function IntToBin(Value: Byte): String;
91	var
92	i: Byte;
93	begin
94	Result := '';
95	for i := 7 downto 0 do
96	Result := Result + IntToStr((Value shr i) and $01);
97	end;
98
99
100	function DataToBin(Data: TByteData): String;
101	var
102	i, j: Byte;
103	singlebyte: Byte;
104	bytepart: String;
105	begin
106	SetLength(bytepart, 8);
107	Result := '';
108	for i := 0 to High(Data) do
109	begin
110	singlebyte := Data[i];
111	for j := 7 downto 0 do
112	begin
113	bytepart[j + 1] := Char((singlebyte and $01) + 48);
114	singlebyte := singlebyte shr 1;
115	end;
116	Result := Result + bytepart + ' ';
117	end;
118	end;
119
120
121	function BinToInt(bin: String): Byte;
122	var
123	Add: Integer;
124	i: Byte;
125	begin
126	Result := 0;
127	if Length(bin) <> 8 then
128	Exit;
129	Add := 1;
130	for i := 8 downto 1 do
131	begin
132	if not (bin[i] in ['0', '1']) then
133	Exit;
134	if bin[i] = '1' then
135	Inc(Result, Add);
136	Add := Add shl 1;
137	end;
138	end;
139
140
141	function MakeDatLink(FileID: Integer): Integer;
142	begin
143	Result := FileID * 256 + 1;
144	end;
145
146
147
148	function FormatNumber(Value: LongWord; Width: Byte; leadingzeros: Char): String;
149	begin
150	Result := AnsiReplaceStr(Format('%' + IntToStr(Width) + 'u', [Value]), ' ', leadingzeros);
151	end;
152
153
154
155
156	function FormatFileSize(size: LongWord): String;
157	var
158	floatformat: TFormatSettings;
159	begin
160	floatformat.DecimalSeparator := '.';
161	if size >= 1000 * 1024 * 1024 then
162	Result := FloatToStrF(size / 1024 / 1024 / 1024, ffFixed, 5, 1, floatformat) + ' GB'
163	else
164	if size >= 1000 * 1024 then
165	Result := FloatToStrF(size / 1024 / 1024, ffFixed, 5, 1, floatformat) + ' MB'
166	else
167	if size >= 1000 then
168	Result := FloatToStrF(size / 1024, ffFixed, 5, 1, floatformat) + ' KB'
169	else
170	Result := IntToStr(size) + ' B';
171	end;
172
173
174
175
176	function CreateHexString(Data: TByteData; HexOnly: Boolean): String;
177	var
178	string_build, ascii_version: String;
179	i: Integer;
180	begin
181	string_build := '';
182	ascii_version := '';
183	for i := 0 to High(Data) do
184	begin
185	if not HexOnly then
186	if (i mod 16) = 0 then
187	string_build := string_build + '0x' + IntToHex(i, 6) + ' ';
188	string_build := string_build + IntToHex(Data[i], 2);
189	if not HexOnly then
190	begin
191	if Data[i] >= 32 then
192	ascii_version := ascii_version + Chr(Data[i])
193	else
194	ascii_version := ascii_version + '.';
195	if ((i + 1) mod 2) = 0 then
196	string_build := string_build + #32;
197	if ((i + 1) mod 16) = 0 then
198	begin
199	string_build := string_build + #32 + ascii_version + CrLf;
200	ascii_version := '';
201	end;
202	end;
203	end;
204	Result := string_build;
205	end;
206
207
208
209
210	function DecodeHexString(hex: String): TByteData;
211	var
212	i: Integer;
213	begin
214	SetLength(Result, Length(hex) div 2);
215	for i := 0 to Length(Result) do
216	begin
217	Result[i] := 0;
218	case UpCase(hex[1 + i * 2]) of
219	'0'..'9':
220	Result[i] := (Ord(UpCase(hex[1 + i * 2])) - 48) * 16;
221	'A'..'F':
222	Result[i] := (Ord(UpCase(hex[1 + i * 2])) - 55) * 16;
223	end;
224	case UpCase(hex[1 + i * 2 + 1]) of
225	'0'..'9':
226	Result[i] := Result[i] + (Ord(UpCase(hex[1 + i * 2 + 1])) - 48);
227	'A'..'F':
228	Result[i] := Result[i] + (Ord(UpCase(hex[1 + i * 2 + 1])) - 55);
229	end;
230	end;
231	end;
232
233
234
235
236	function StringSmaller(string1, string2: String): Boolean;
237	var
238	i: Integer;
239	len: Integer;
240	begin
241	len := Min(Length(string1), Length(string2));
242	for i := 1 to len do
243	if Ord(string1[i]) <> Ord(string2[i]) then
244	begin
245	Result := Ord(string1[i]) < Ord(string2[i]);
246	Exit;
247	end;
248	Result := Length(string1) < Length(string2);
249	end;
250
251
252
253	function Explode(_string: String; delimiter: Char): TStrings;
254	var
255	start, len: Word;
256	begin
257	Result := TStringList.Create;
258	start := 1;
259	while PosEx(delimiter, _string, start) > 0 do
260	begin
261	len := PosEx(delimiter, _string, start) - start;
262	Result.Add(MidStr(_string, start, len));
263	start := start + len + 1;
264	end;
265	Result.Add(MidStr(_string, start, Length(_string) - start + 1));
266	end;
267
268
269	function GetWinFileName(Name: String): String;
270	begin
271	Result := Name;
272	Result := AnsiReplaceStr(Result, '\', '__');
273	Result := AnsiReplaceStr(Result, '/', '__');
274	Result := AnsiReplaceStr(Result, '>', '__');
275	Result := AnsiReplaceStr(Result, '<', '__');
276	end;
277
278
279	end.