1 |
torben |
2671 |
// Upgraded to Delphi 2009: Sebastian Zierer
|
2 |
|
|
// FIXME: TStAnsiTextStream
|
3 |
|
|
|
4 |
|
|
(* ***** BEGIN LICENSE BLOCK *****
|
5 |
|
|
* Version: MPL 1.1
|
6 |
|
|
*
|
7 |
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
8 |
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
9 |
|
|
* the License. You may obtain a copy of the License at
|
10 |
|
|
* http://www.mozilla.org/MPL/
|
11 |
|
|
*
|
12 |
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
13 |
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
14 |
|
|
* for the specific language governing rights and limitations under the
|
15 |
|
|
* License.
|
16 |
|
|
*
|
17 |
|
|
* The Original Code is TurboPower SysTools
|
18 |
|
|
*
|
19 |
|
|
* The Initial Developer of the Original Code is
|
20 |
|
|
* TurboPower Software
|
21 |
|
|
*
|
22 |
|
|
* Portions created by the Initial Developer are Copyright (C) 1996-2002
|
23 |
|
|
* the Initial Developer. All Rights Reserved.
|
24 |
|
|
*
|
25 |
|
|
* Contributor(s):
|
26 |
|
|
*
|
27 |
|
|
* ***** END LICENSE BLOCK ***** *)
|
28 |
|
|
|
29 |
|
|
{*********************************************************}
|
30 |
|
|
{* SysTools: StIniStm.pas 4.04 *}
|
31 |
|
|
{*********************************************************}
|
32 |
|
|
{* SysTools: .INI file-like stream class *}
|
33 |
|
|
{*********************************************************}
|
34 |
|
|
|
35 |
|
|
{$include StDefine.inc}
|
36 |
|
|
|
37 |
|
|
unit StIniStm;
|
38 |
|
|
|
39 |
|
|
|
40 |
|
|
interface
|
41 |
|
|
|
42 |
|
|
uses
|
43 |
|
|
Windows, SysUtils, Classes, StStrms;
|
44 |
|
|
|
45 |
|
|
type
|
46 |
|
|
|
47 |
|
|
TStIniStream = class(TObject)
|
48 |
|
|
private
|
49 |
|
|
FAnsiStream : TStAnsiTextStream;
|
50 |
|
|
FSections : TStringList;
|
51 |
|
|
procedure GetSecStrings(Strs: TStrings);
|
52 |
|
|
protected
|
53 |
|
|
procedure GotoSection(const Section : String);
|
54 |
|
|
procedure UpdateSections;
|
55 |
|
|
procedure WriteSectionName(const Section : String);
|
56 |
|
|
procedure WriteValue(const Key, Value : String);
|
57 |
|
|
public
|
58 |
|
|
constructor Create(aStream : TStream);
|
59 |
|
|
destructor Destroy; override;
|
60 |
|
|
|
61 |
|
|
function SectionExists(const Section : String): Boolean;
|
62 |
|
|
function ReadString(const Section, Ident, Default : String) : String;
|
63 |
|
|
procedure WriteString(const Section, Ident, Value : String);
|
64 |
|
|
procedure WriteSection(const Section : String; Strings: TStrings);
|
65 |
|
|
procedure ReadSection(const Section : String; Strings: TStrings);
|
66 |
|
|
procedure ReadSections(Strings: TStrings);
|
67 |
|
|
procedure ReadSectionValues(const Section : String; Strings: TStrings);
|
68 |
|
|
procedure EraseSection(const Section : String);
|
69 |
|
|
procedure DeleteKey(const Section, Ident : String);
|
70 |
|
|
function ValueExists(const Section, Ident : String): Boolean;
|
71 |
|
|
end;
|
72 |
|
|
|
73 |
|
|
procedure SplitNameValue(const Line : string; var Name, Value : string); {!!.04}
|
74 |
|
|
|
75 |
|
|
implementation
|
76 |
|
|
|
77 |
|
|
{!!.04 - Added }
|
78 |
|
|
procedure SplitNameValue(const Line : string; var Name, Value : string);
|
79 |
|
|
var
|
80 |
|
|
P : Integer;
|
81 |
|
|
begin
|
82 |
|
|
P := Pos('=', Line);
|
83 |
|
|
if P < 1 then begin
|
84 |
|
|
Name := Line;
|
85 |
|
|
Value := '';
|
86 |
|
|
Exit;
|
87 |
|
|
end;
|
88 |
|
|
|
89 |
|
|
Name := Copy(Line, 1, P-1);
|
90 |
|
|
Value := Copy(Line, P+1, Length(Line) - P);
|
91 |
|
|
end;
|
92 |
|
|
{!!.04 - Added End}
|
93 |
|
|
|
94 |
|
|
function IsHeader(const AString : String) : Boolean;
|
95 |
|
|
{ see if passed in text looks like an .INI header }
|
96 |
|
|
var
|
97 |
|
|
Temp : String;
|
98 |
|
|
begin
|
99 |
|
|
if AString = '' then begin
|
100 |
|
|
Result := False;
|
101 |
|
|
Exit;
|
102 |
|
|
end;
|
103 |
|
|
|
104 |
|
|
Temp := Trim(AString);
|
105 |
|
|
Result := (Temp[1] = '[') and (Temp[Length(Temp)] = ']')
|
106 |
|
|
end;
|
107 |
|
|
|
108 |
|
|
|
109 |
|
|
{ TStIniStream }
|
110 |
|
|
|
111 |
|
|
constructor TStIniStream.Create(aStream: TStream);
|
112 |
|
|
begin
|
113 |
|
|
inherited Create;
|
114 |
|
|
FAnsiStream := TStAnsiTextStream.Create(aStream);
|
115 |
|
|
FSections := TStringList.Create;
|
116 |
|
|
FSections.Sorted := True;
|
117 |
|
|
FSections.Duplicates := dupIgnore;
|
118 |
|
|
|
119 |
|
|
if aStream.Size > 0 then { not an empty stream }
|
120 |
|
|
UpdateSections;
|
121 |
|
|
end;
|
122 |
|
|
|
123 |
|
|
destructor TStIniStream.Destroy;
|
124 |
|
|
begin
|
125 |
|
|
FSections.Free;
|
126 |
|
|
FAnsiStream.Free;
|
127 |
|
|
inherited Destroy;
|
128 |
|
|
end;
|
129 |
|
|
|
130 |
|
|
|
131 |
|
|
procedure TStIniStream.DeleteKey(const Section, Ident : String);
|
132 |
|
|
{ delete specified item from Section }
|
133 |
|
|
var
|
134 |
|
|
SecStrs : TStringList;
|
135 |
|
|
SecIdx : Integer;
|
136 |
|
|
MS : TMemoryStream;
|
137 |
|
|
TS : TStAnsiTextStream;
|
138 |
|
|
i, Idx : Integer;
|
139 |
|
|
begin
|
140 |
|
|
SecStrs := TStringList.Create;
|
141 |
|
|
MS := TMemoryStream.Create;
|
142 |
|
|
TS := TStAnsiTextStream.Create(MS);
|
143 |
|
|
|
144 |
|
|
try
|
145 |
|
|
{ locate and read section }
|
146 |
|
|
GotoSection(Section);
|
147 |
|
|
GetSecStrings(SecStrs);
|
148 |
|
|
Idx := SecStrs.IndexOfName(Ident);
|
149 |
|
|
|
150 |
|
|
if Idx > - 1 then begin
|
151 |
|
|
{ remove desired key }
|
152 |
|
|
SecStrs.Delete(Idx);
|
153 |
|
|
|
154 |
|
|
{ locate subsequent section }
|
155 |
|
|
SecIdx := FSections.IndexOf(Section);
|
156 |
|
|
if SecIdx < Pred(FSections.Count) then begin
|
157 |
|
|
GotoSection(FSections[SecIdx+1]);
|
158 |
|
|
|
159 |
|
|
{ copy remaining sections }
|
160 |
|
|
while not FAnsiStream.AtEndOfStream do
|
161 |
|
|
TS.WriteLine(FAnsiStream.ReadLine);
|
162 |
|
|
end;
|
163 |
|
|
{ else this is the last section }
|
164 |
|
|
|
165 |
|
|
{ seek back and truncate }
|
166 |
|
|
GotoSection(Section);
|
167 |
|
|
FAnsiStream.Size := FAnsiStream.Position;
|
168 |
|
|
// FAnsiStream.SetSize(FAnsiStream.Position);
|
169 |
|
|
|
170 |
|
|
{ write updated section }
|
171 |
|
|
WriteSectionName(Section);
|
172 |
|
|
for i := 0 to Pred(SecStrs.Count) do
|
173 |
|
|
FAnsiStream.WriteLine(SecStrs[i]);
|
174 |
|
|
FAnsiStream.Stream.Seek(0, soFromEnd);
|
175 |
|
|
|
176 |
|
|
{ append saved subsequent sections }
|
177 |
|
|
TS.SeekLine(0);
|
178 |
|
|
while not TS.AtEndOfStream do
|
179 |
|
|
FAnsiStream.WriteLine(TS.ReadLine);
|
180 |
|
|
|
181 |
|
|
end; { if Ident > -1 }
|
182 |
|
|
{ else the Ident doesn't exist so don't alter anything }
|
183 |
|
|
|
184 |
|
|
finally
|
185 |
|
|
SecStrs.Free;
|
186 |
|
|
TS.Free;
|
187 |
|
|
MS.Free;
|
188 |
|
|
end;
|
189 |
|
|
end;
|
190 |
|
|
|
191 |
|
|
procedure TStIniStream.EraseSection(const Section : String);
|
192 |
|
|
{ erase specified section from Ini data }
|
193 |
|
|
var
|
194 |
|
|
SecIdx : Integer;
|
195 |
|
|
MS : TMemoryStream;
|
196 |
|
|
TS : TStAnsiTextStream;
|
197 |
|
|
begin
|
198 |
|
|
MS := TMemoryStream.Create;
|
199 |
|
|
TS := TStAnsiTextStream.Create(MS);
|
200 |
|
|
|
201 |
|
|
{ locate section }
|
202 |
|
|
SecIdx := FSections.IndexOf(Section);
|
203 |
|
|
|
204 |
|
|
{ if section found }
|
205 |
|
|
if SectionExists(Section) then begin
|
206 |
|
|
try
|
207 |
|
|
{ if this is not the last section }
|
208 |
|
|
if (SecIdx < Pred(FSections.Count)) then begin
|
209 |
|
|
{ locate subsequent section }
|
210 |
|
|
GotoSection(FSections[SecIdx+1]);
|
211 |
|
|
|
212 |
|
|
{ copy remaining sections to temporary stream}
|
213 |
|
|
while not FAnsiStream.AtEndOfStream do
|
214 |
|
|
TS.WriteLine(FAnsiStream.ReadLine);
|
215 |
|
|
end;
|
216 |
|
|
{ else this is the last section }
|
217 |
|
|
|
218 |
|
|
{ locate section to delete and truncate }
|
219 |
|
|
GotoSection(Section);
|
220 |
|
|
FAnsiStream.Size := FAnsiStream.Position;
|
221 |
|
|
// FAnsiStream.SetSize(FAnsiStream.Position);
|
222 |
|
|
|
223 |
|
|
{ append saved subsequent sections }
|
224 |
|
|
TS.SeekLine(0);
|
225 |
|
|
while not TS.AtEndOfStream do
|
226 |
|
|
FAnsiStream.WriteLine(TS.ReadLine);
|
227 |
|
|
|
228 |
|
|
finally
|
229 |
|
|
TS.Free;
|
230 |
|
|
MS.Free;
|
231 |
|
|
end;
|
232 |
|
|
UpdateSections;
|
233 |
|
|
end;
|
234 |
|
|
{ else section doesn't exist, do nothing }
|
235 |
|
|
end;
|
236 |
|
|
|
237 |
|
|
procedure TStIniStream.GetSecStrings(Strs : TStrings);
|
238 |
|
|
{ read strings from a section, preserving comments and blanks }
|
239 |
|
|
var
|
240 |
|
|
LineVal : String;
|
241 |
|
|
begin
|
242 |
|
|
{ assume we're at the start of a section }
|
243 |
|
|
FAnsiStream.ReadLine; { skip section header }
|
244 |
|
|
|
245 |
|
|
LineVal := FAnsiStream.ReadLine;
|
246 |
|
|
while not (FAnsiStream.AtEndOfStream) and not (IsHeader(LineVal)) do begin
|
247 |
|
|
Strs.Add(LineVal); { add it to the list }
|
248 |
|
|
LineVal := FAnsiStream.ReadLine; { get next line }
|
249 |
|
|
end;
|
250 |
|
|
end;
|
251 |
|
|
|
252 |
|
|
procedure TStIniStream.GotoSection(const Section: String);
|
253 |
|
|
{ position stream to requested section header }
|
254 |
|
|
var
|
255 |
|
|
Idx : Integer;
|
256 |
|
|
begin
|
257 |
|
|
Idx := FSections.IndexOf(Section);
|
258 |
|
|
if Idx > -1 then
|
259 |
|
|
FAnsiStream.SeekLine(Integer(FSections.Objects[Idx]));
|
260 |
|
|
end;
|
261 |
|
|
|
262 |
|
|
procedure TStIniStream.ReadSectionValues(const Section : String;
|
263 |
|
|
Strings: TStrings);
|
264 |
|
|
{ return <Name>=<Value> pairs of requested Section in Strings }
|
265 |
|
|
var
|
266 |
|
|
Strs : TStringList;
|
267 |
|
|
LineVal : String;
|
268 |
|
|
i : Integer;
|
269 |
|
|
begin
|
270 |
|
|
if not Assigned(Strings) then Exit;
|
271 |
|
|
|
272 |
|
|
Strs := TStringList.Create;
|
273 |
|
|
if SectionExists(Section) then begin { section exists }
|
274 |
|
|
Strings.Clear;
|
275 |
|
|
try
|
276 |
|
|
{ locate section }
|
277 |
|
|
GotoSection(Section);
|
278 |
|
|
|
279 |
|
|
{ retrieve section contents, comments, blank lines and all }
|
280 |
|
|
GetSecStrings(Strs);
|
281 |
|
|
|
282 |
|
|
{ iterate section lines looking for entries }
|
283 |
|
|
for i := 0 to Pred(Strs.Count) do begin
|
284 |
|
|
LineVal := Strs[i];
|
285 |
|
|
if (Trim(LineVal) <> '') and (Trim(LineVal[1]) <> ';') and (Pos('=', LineVal) > 0) then {!!.02}
|
286 |
|
|
{ not empty and not a comment and at least superficially resembles a
|
287 |
|
|
<Name>=<Value> pair }
|
288 |
|
|
Strings.Add(Trim(LineVal)); { add it to the list } {!!.02}
|
289 |
|
|
end;
|
290 |
|
|
finally
|
291 |
|
|
Strs.Free;
|
292 |
|
|
end;
|
293 |
|
|
end;
|
294 |
|
|
{ else section doesn't exist, do nothing }
|
295 |
|
|
end;
|
296 |
|
|
|
297 |
|
|
procedure TStIniStream.ReadSections(Strings: TStrings);
|
298 |
|
|
var
|
299 |
|
|
i : Integer;
|
300 |
|
|
begin
|
301 |
|
|
if not Assigned(Strings) then Exit;
|
302 |
|
|
|
303 |
|
|
{ omit the pseudo section }
|
304 |
|
|
for i := 1 to Pred(FSections.Count) do
|
305 |
|
|
Strings.Add(Trim(FSections[i])); {!!.02}
|
306 |
|
|
end;
|
307 |
|
|
|
308 |
|
|
procedure TStIniStream.ReadSection(const Section : String;
|
309 |
|
|
Strings: TStrings);
|
310 |
|
|
{ return Name strings for all entries in requested section }
|
311 |
|
|
var
|
312 |
|
|
SecStrs : TStringList;
|
313 |
|
|
i : Integer;
|
314 |
|
|
LineVal, Name : String;
|
315 |
|
|
begin
|
316 |
|
|
if not Assigned(Strings) then Exit;
|
317 |
|
|
|
318 |
|
|
SecStrs := TStringList.Create;
|
319 |
|
|
try
|
320 |
|
|
// ReadSection(Section, SecStrs);
|
321 |
|
|
{!!.02 - Rewritten }
|
322 |
|
|
Strings.Clear;
|
323 |
|
|
{ locate section }
|
324 |
|
|
GotoSection(Section);
|
325 |
|
|
|
326 |
|
|
{ retrieve section contents, comments, blank lines and all }
|
327 |
|
|
GetSecStrings(SecStrs);
|
328 |
|
|
|
329 |
|
|
{ iterate section lines looking for entries }
|
330 |
|
|
for i := 0 to Pred(SecStrs.Count) do begin
|
331 |
|
|
LineVal := SecStrs[i];
|
332 |
|
|
if (Trim(LineVal) <> '') and (Trim(LineVal[1]) <> ';') and (Pos('=', LineVal) > 0) then begin
|
333 |
|
|
{ not empty and not a comment and at least superficially resembles a
|
334 |
|
|
<Name>=<Value> pair }
|
335 |
|
|
SplitNameValue(LineVal, Name, LineVal);
|
336 |
|
|
Strings.Add(Trim(Name));
|
337 |
|
|
end;
|
338 |
|
|
end;
|
339 |
|
|
|
340 |
|
|
// for i := 0 to Pred(SecStrs.Count) do
|
341 |
|
|
// Strings.Add(SecStrs.Names[i]);
|
342 |
|
|
{!!.02 - Rewritten End }
|
343 |
|
|
|
344 |
|
|
|
345 |
|
|
finally
|
346 |
|
|
SecStrs.Free;
|
347 |
|
|
end;
|
348 |
|
|
end;
|
349 |
|
|
|
350 |
|
|
function TStIniStream.ReadString(const Section, Ident,
|
351 |
|
|
Default : String) : String;
|
352 |
|
|
{
|
353 |
|
|
return a particular string selected by Ident from Section
|
354 |
|
|
if empty or doesn't exist, return Default
|
355 |
|
|
}
|
356 |
|
|
var
|
357 |
|
|
SecStrs : TStringList;
|
358 |
|
|
begin
|
359 |
|
|
SecStrs := TStringList.Create;
|
360 |
|
|
try
|
361 |
|
|
ReadSectionValues(Section, SecStrs); {!!.04}
|
362 |
|
|
|
363 |
|
|
Result := SecStrs.Values[Ident];
|
364 |
|
|
if Result = '' then
|
365 |
|
|
Result := Default;
|
366 |
|
|
|
367 |
|
|
finally
|
368 |
|
|
SecStrs.Free;
|
369 |
|
|
end;
|
370 |
|
|
end;
|
371 |
|
|
|
372 |
|
|
function TStIniStream.SectionExists(const Section : String): Boolean;
|
373 |
|
|
{ returns True if Section exists in section list, False otherwise }
|
374 |
|
|
begin
|
375 |
|
|
Result := FSections.IndexOf(Section) > -1;
|
376 |
|
|
end;
|
377 |
|
|
|
378 |
|
|
procedure TStIniStream.UpdateSections;
|
379 |
|
|
{ refresh Sections list }
|
380 |
|
|
var
|
381 |
|
|
i : Integer;
|
382 |
|
|
Line : String;
|
383 |
|
|
begin
|
384 |
|
|
i := 0;
|
385 |
|
|
FSections.Clear;
|
386 |
|
|
FAnsiStream.SeekLine(0);
|
387 |
|
|
|
388 |
|
|
{ pseudo section to account for any comments or whitespace prior to first
|
389 |
|
|
real section in data }
|
390 |
|
|
FSections.AddObject('[]', TObject(0));
|
391 |
|
|
|
392 |
|
|
{ iterate data looking for section headers: '[blah]' }
|
393 |
|
|
while not FAnsiStream.AtEndOfStream do begin
|
394 |
|
|
Line := Trim(FAnsiStream.ReadLine);
|
395 |
|
|
{ if it looks like a header }
|
396 |
|
|
if IsHeader(Line) then
|
397 |
|
|
{ add it to the list with a line index }
|
398 |
|
|
FSections.AddObject(Copy(Line, 2, Length(Line) - 2), TObject(i));
|
399 |
|
|
{ go to next line }
|
400 |
|
|
Inc(i);
|
401 |
|
|
end;
|
402 |
|
|
end;
|
403 |
|
|
|
404 |
|
|
function TStIniStream.ValueExists(const Section, Ident : String): Boolean;
|
405 |
|
|
{
|
406 |
|
|
see if requested section contains requested Ident
|
407 |
|
|
implies "<Ident>=" exists in section, not that there's necessarily any
|
408 |
|
|
explicit Value associated, i.e. Value may be blank
|
409 |
|
|
}
|
410 |
|
|
var
|
411 |
|
|
SecStrs : TStringList;
|
412 |
|
|
i : Integer;
|
413 |
|
|
begin
|
414 |
|
|
Result := False;
|
415 |
|
|
SecStrs := TStringList.Create;
|
416 |
|
|
try
|
417 |
|
|
{ get section }
|
418 |
|
|
ReadSection(Section, SecStrs);
|
419 |
|
|
|
420 |
|
|
{ see if Ident exists in Names collection }
|
421 |
|
|
for i := 0 to Pred(SecStrs.Count) do
|
422 |
|
|
if SecStrs.Names[i] = Ident then begin
|
423 |
|
|
Result := True;
|
424 |
|
|
Break;
|
425 |
|
|
end;
|
426 |
|
|
finally
|
427 |
|
|
SecStrs.Free;
|
428 |
|
|
end;
|
429 |
|
|
end;
|
430 |
|
|
|
431 |
|
|
procedure TStIniStream.WriteString(const Section, Ident, Value : String);
|
432 |
|
|
{ write individual string value to IniStream }
|
433 |
|
|
var
|
434 |
|
|
SecStrs : TStringList;
|
435 |
|
|
SecIdx : Integer;
|
436 |
|
|
MS : TMemoryStream;
|
437 |
|
|
TS : TStAnsiTextStream;
|
438 |
|
|
i : Integer;
|
439 |
|
|
begin
|
440 |
|
|
if SectionExists(Section) then begin
|
441 |
|
|
SecStrs := TStringList.Create;
|
442 |
|
|
MS := TMemoryStream.Create;
|
443 |
|
|
TS := TStAnsiTextStream.Create(MS);
|
444 |
|
|
|
445 |
|
|
try
|
446 |
|
|
{ locate and read section }
|
447 |
|
|
GotoSection(Section);
|
448 |
|
|
GetSecStrings(SecStrs);
|
449 |
|
|
|
450 |
|
|
{ locate subsequent section }
|
451 |
|
|
SecIdx := FSections.IndexOf(Section);
|
452 |
|
|
if SecIdx < Pred(FSections.Count) then begin
|
453 |
|
|
GotoSection(FSections[SecIdx+1]);
|
454 |
|
|
|
455 |
|
|
{ copy remaining sections }
|
456 |
|
|
while not FAnsiStream.AtEndOfStream do
|
457 |
|
|
TS.WriteLine(FAnsiStream.ReadLine);
|
458 |
|
|
end;
|
459 |
|
|
{ else this is the last section }
|
460 |
|
|
|
461 |
|
|
{ seek back and truncate }
|
462 |
|
|
GotoSection(Section);
|
463 |
|
|
FAnsiStream.Size := FAnsiStream.Position;
|
464 |
|
|
|
465 |
|
|
// FAnsiStream.SetSize(FAnsiStream.Position);
|
466 |
|
|
|
467 |
|
|
{ insert new value }
|
468 |
|
|
SecStrs.Add(Ident + '=' + Value);
|
469 |
|
|
|
470 |
|
|
{ write updated section }
|
471 |
|
|
WriteSectionName(Section);
|
472 |
|
|
for i := 0 to Pred(SecStrs.Count) do
|
473 |
|
|
FAnsiStream.WriteLine(SecStrs[i]);
|
474 |
|
|
FAnsiStream.Stream.Seek(0, soFromEnd);
|
475 |
|
|
|
476 |
|
|
{ append saved subsequent sections }
|
477 |
|
|
TS.SeekLine(0);
|
478 |
|
|
while not TS.AtEndOfStream do
|
479 |
|
|
FAnsiStream.WriteLine(TS.ReadLine);
|
480 |
|
|
|
481 |
|
|
finally
|
482 |
|
|
SecStrs.Free;
|
483 |
|
|
TS.Free;
|
484 |
|
|
MS.Free;
|
485 |
|
|
end;
|
486 |
|
|
|
487 |
|
|
end
|
488 |
|
|
else begin { no such section exists, append new one }
|
489 |
|
|
FAnsiStream.Seek(0, soFromEnd);
|
490 |
|
|
WriteSectionName(Section);
|
491 |
|
|
WriteValue(Ident, Value);
|
492 |
|
|
UpdateSections;
|
493 |
|
|
end;
|
494 |
|
|
|
495 |
|
|
end;
|
496 |
|
|
|
497 |
|
|
procedure TStIniStream.WriteSectionName(const Section: String);
|
498 |
|
|
{ write section header at current location }
|
499 |
|
|
begin
|
500 |
|
|
FAnsiStream.WriteLine('[' + Section + ']');
|
501 |
|
|
end;
|
502 |
|
|
|
503 |
|
|
procedure TStIniStream.WriteValue(const Key, Value: String);
|
504 |
|
|
{ write <Name>=<Value> pair at current location }
|
505 |
|
|
begin
|
506 |
|
|
FAnsiStream.WriteLine(Key + '=' + Value);
|
507 |
|
|
end;
|
508 |
|
|
|
509 |
|
|
procedure TStIniStream.WriteSection(const Section: String;
|
510 |
|
|
Strings: TStrings);
|
511 |
|
|
{ write entire section described by Strings }
|
512 |
|
|
var
|
513 |
|
|
SecStrs : TStringList;
|
514 |
|
|
SecIdx : Integer;
|
515 |
|
|
MS : TMemoryStream;
|
516 |
|
|
TS : TStAnsiTextStream;
|
517 |
|
|
i : Integer;
|
518 |
|
|
L : LongInt;
|
519 |
|
|
Name : String;
|
520 |
|
|
begin
|
521 |
|
|
if not Assigned(Strings) then Exit;
|
522 |
|
|
|
523 |
|
|
if SectionExists(Section) then begin
|
524 |
|
|
SecStrs := TStringList.Create;
|
525 |
|
|
MS := TMemoryStream.Create;
|
526 |
|
|
TS := TStAnsiTextStream.Create(MS);
|
527 |
|
|
|
528 |
|
|
try
|
529 |
|
|
{ locate and read section }
|
530 |
|
|
GotoSection(Section);
|
531 |
|
|
GetSecStrings(SecStrs);
|
532 |
|
|
|
533 |
|
|
{ locate subsequent section }
|
534 |
|
|
SecIdx := FSections.IndexOf(Section);
|
535 |
|
|
if SecIdx < Pred(FSections.Count) then begin
|
536 |
|
|
GotoSection(FSections[SecIdx+1]);
|
537 |
|
|
|
538 |
|
|
{ copy remaining sections }
|
539 |
|
|
while not FAnsiStream.AtEndOfStream do
|
540 |
|
|
TS.WriteLine(FAnsiStream.ReadLine);
|
541 |
|
|
end;
|
542 |
|
|
{ else this is the last section }
|
543 |
|
|
|
544 |
|
|
{ seek back and truncate }
|
545 |
|
|
GotoSection(Section);
|
546 |
|
|
FAnsiStream.Size := FAnsiStream.Position;
|
547 |
|
|
// FAnsiStream.SetSize(FAnsiStream.Position);
|
548 |
|
|
|
549 |
|
|
{ update section }
|
550 |
|
|
for i := 0 to Pred(Strings.Count) do begin
|
551 |
|
|
Name := Strings.Names[i];
|
552 |
|
|
if SecStrs.IndexOfName(Name) > -1 then { entry exists, change value }
|
553 |
|
|
SecStrs.Values[Name] := Strings.Values[Name]
|
554 |
|
|
else { new entry, just append it }
|
555 |
|
|
SecStrs.Add(Strings[i]);
|
556 |
|
|
end;
|
557 |
|
|
|
558 |
|
|
{ write updated section }
|
559 |
|
|
WriteSectionName(Section);
|
560 |
|
|
for i := 0 to Pred(SecStrs.Count) do
|
561 |
|
|
FAnsiStream.WriteLine(SecStrs[i]);
|
562 |
|
|
FAnsiStream.Stream.Seek(0, soFromEnd);
|
563 |
|
|
|
564 |
|
|
{ append saved subsequent sections }
|
565 |
|
|
TS.SeekLine(0);
|
566 |
|
|
while not TS.AtEndOfStream do
|
567 |
|
|
FAnsiStream.WriteLine(TS.ReadLine);
|
568 |
|
|
|
569 |
|
|
finally
|
570 |
|
|
SecStrs.Free;
|
571 |
|
|
TS.Free;
|
572 |
|
|
MS.Free;
|
573 |
|
|
end;
|
574 |
|
|
|
575 |
|
|
end
|
576 |
|
|
else begin { no such section exists, append new one }
|
577 |
|
|
L := FAnsiStream.LineCount;
|
578 |
|
|
FAnsiStream.Seek(0, soFromEnd);
|
579 |
|
|
WriteSectionName(Section);
|
580 |
|
|
FSections.AddObject(Section, TObject(L+1));
|
581 |
|
|
for i := 0 to Pred(Strings.Count) do
|
582 |
|
|
FAnsiStream.WriteLine(Strings[i]);
|
583 |
|
|
// UpdateSections;
|
584 |
|
|
end;
|
585 |
|
|
end;
|
586 |
|
|
|
587 |
|
|
end.
|