1 (* Copyright (C) DooM 2D:Forever Developers
3 * This program is free software: you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation, either version 3 of the License, or
6 * (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 {$INCLUDE a_modes.inc}
25 // ////////////////////////////////////////////////////////////////////////// //
27 TUtf8DecoderFast
= packed record
29 const Replacement
= $FFFD; // replacement char for invalid unicode
37 codepoint
: LongWord; // decoded codepoint (valid only when decoder is in "complete" state)
40 constructor Create (v
: Boolean{fuck you, fpc});
42 procedure reset (); inline;
44 function complete (): Boolean; inline; // is current character complete? take `codepoint` then
45 function invalid (): Boolean; inline;
46 function completeOrInvalid (): Boolean; inline;
48 // process one byte, return `true` if codepoint is ready
49 function decode (b
: Byte): Boolean; inline; overload
;
50 function decode (c
: AnsiChar): Boolean; inline; overload
;
54 // ////////////////////////////////////////////////////////////////////////// //
55 // does filename have one of ".wad", ".pk3", ".zip" extensions?
56 function hasWadExtension (fn
: AnsiString): Boolean;
58 // does filepath have ".XXX:\" in it?
59 function isWadPath (fn
: AnsiString): Boolean;
61 // adds ".wad" extension if filename doesn't have one of ".wad", ".pk3", ".zip"
62 function addWadExtension (fn
: AnsiString): AnsiString;
64 // convert number to strig with nice commas
65 function Int64ToStrComma (i
: Int64): AnsiString;
67 function UpCase1251 (ch
: Char): Char;
68 function LoCase1251 (ch
: Char): Char;
70 // `true` if strings are equal; ignoring case for cp1251
71 function StrEquCI1251 (const s0
, s1
: AnsiString): Boolean;
73 function utf8Valid (const s
: AnsiString): Boolean;
75 function utf8to1251 (s
: AnsiString): AnsiString;
77 // `pathname` will be modified if path is valid
78 // `lastIsDir` should be `true` if we are searching for directory
79 // nobody cares about shitdoze, so i'll use the same code path for it
80 function findFileCI (var pathname
: AnsiString; lastIsDir
: Boolean=false): Boolean;
81 function findFileCIStr (pathname
: AnsiString): AnsiString;
84 function openDiskFileRO (pathname
: AnsiString): TStream
;
85 function createDiskFile (pathname
: AnsiString): TStream
;
88 procedure writeInt (st
: TStream
; v
: Byte); overload
;
89 procedure writeInt (st
: TStream
; v
: ShortInt); overload
;
90 procedure writeInt (st
: TStream
; v
: Word); overload
;
91 procedure writeInt (st
: TStream
; v
: SmallInt); overload
;
92 procedure writeInt (st
: TStream
; v
: LongWord); overload
;
93 procedure writeInt (st
: TStream
; v
: LongInt); overload
;
94 procedure writeInt (st
: TStream
; v
: Int64); overload
;
95 procedure writeInt (st
: TStream
; v
: UInt64); overload
;
97 function readByte (st
: TStream
): Byte;
98 function readShortInt (st
: TStream
): ShortInt;
99 function readWord (st
: TStream
): Word;
100 function readSmallInt (st
: TStream
): SmallInt;
101 function readLongWord (st
: TStream
): LongWord;
102 function readLongInt (st
: TStream
): LongInt;
103 function readInt64 (st
: TStream
): Int64;
104 function readUInt64 (st
: TStream
): UInt64;
107 procedure writeIntBE (st
: TStream
; v
: Byte); overload
;
108 procedure writeIntBE (st
: TStream
; v
: ShortInt); overload
;
109 procedure writeIntBE (st
: TStream
; v
: Word); overload
;
110 procedure writeIntBE (st
: TStream
; v
: SmallInt); overload
;
111 procedure writeIntBE (st
: TStream
; v
: LongWord); overload
;
112 procedure writeIntBE (st
: TStream
; v
: LongInt); overload
;
113 procedure writeIntBE (st
: TStream
; v
: Int64); overload
;
114 procedure writeIntBE (st
: TStream
; v
: UInt64); overload
;
116 function readByteBE (st
: TStream
): Byte;
117 function readShortIntBE (st
: TStream
): ShortInt;
118 function readWordBE (st
: TStream
): Word;
119 function readSmallIntBE (st
: TStream
): SmallInt;
120 function readLongWordBE (st
: TStream
): LongWord;
121 function readLongIntBE (st
: TStream
): LongInt;
122 function readInt64BE (st
: TStream
): Int64;
123 function readUInt64BE (st
: TStream
): UInt64;
127 TFormatStrFCallback
= procedure (constref buf
; len
: SizeUInt
);
129 function wchar2win (wc
: WideChar): AnsiChar; inline;
130 function utf2win (const s
: AnsiString): AnsiString;
131 function win2utf (const s
: AnsiString): AnsiString;
132 function digitInBase (ch
: AnsiChar; base
: Integer): Integer;
134 // returns string in single or double quotes
135 // single quotes supports only pascal-style '' for single quote char
136 // double quotes supports c-style escapes
137 // function will select quote mode automatically
138 function quoteStr (const s
: AnsiString): AnsiString;
141 // ////////////////////////////////////////////////////////////////////////// //
143 wc2shitmap
: array[0..65535] of AnsiChar;
144 wc2shitmapInited
: Boolean = false;
147 // ////////////////////////////////////////////////////////////////////////// //
149 cp1251
: array[0..127] of Word = (
150 $0402,$0403,$201A,$0453,$201E,$2026,$2020,$2021,$20AC,$2030,$0409,$2039,$040A,$040C,$040B,$040F,
151 $0452,$2018,$2019,$201C,$201D,$2022,$2013,$2014,$003F,$2122,$0459,$203A,$045A,$045C,$045B,$045F,
152 $00A0,$040E,$045E,$0408,$00A4,$0490,$00A6,$00A7,$0401,$00A9,$0404,$00AB,$00AC,$00AD,$00AE,$0407,
153 $00B0,$00B1,$0406,$0456,$0491,$00B5,$00B6,$00B7,$0451,$2116,$0454,$00BB,$0458,$0405,$0455,$0457,
154 $0410,$0411,$0412,$0413,$0414,$0415,$0416,$0417,$0418,$0419,$041A,$041B,$041C,$041D,$041E,$041F,
155 $0420,$0421,$0422,$0423,$0424,$0425,$0426,$0427,$0428,$0429,$042A,$042B,$042C,$042D,$042E,$042F,
156 $0430,$0431,$0432,$0433,$0434,$0435,$0436,$0437,$0438,$0439,$043A,$043B,$043C,$043D,$043E,$043F,
157 $0440,$0441,$0442,$0443,$0444,$0445,$0446,$0447,$0448,$0449,$044A,$044B,$044C,$044D,$044E,$044F
162 procedure initShitMap ();
166 for f
:= 0 to High(wc2shitmap
) do wc2shitmap
[f
] := '?';
167 for f
:= 0 to 127 do wc2shitmap
[f
] := AnsiChar(f
);
168 for f
:= 0 to 127 do wc2shitmap
[cp1251
[f
]] := AnsiChar(f
+128);
169 wc2shitmapInited
:= true;
173 // ////////////////////////////////////////////////////////////////////////// //
174 // fast state-machine based UTF-8 decoder; using 8 bytes of memory
175 // code points from invalid range will never be valid, this is the property of the state machine
177 // see http://bjoern.hoehrmann.de/utf-8/decoder/dfa/
178 utf8dfa
: array[0..$16c-1] of Byte = (
179 // maps bytes to character classes
180 $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 00-0f
181 $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 10-1f
182 $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 20-2f
183 $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 30-3f
184 $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 40-4f
185 $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 50-5f
186 $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 60-6f
187 $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 70-7f
188 $01,$01,$01,$01,$01,$01,$01,$01,$01,$01,$01,$01,$01,$01,$01,$01, // 80-8f
189 $09,$09,$09,$09,$09,$09,$09,$09,$09,$09,$09,$09,$09,$09,$09,$09, // 90-9f
190 $07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07, // a0-af
191 $07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07, // b0-bf
192 $08,$08,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02, // c0-cf
193 $02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02, // d0-df
194 $0a,$03,$03,$03,$03,$03,$03,$03,$03,$03,$03,$03,$03,$04,$03,$03, // e0-ef
195 $0b,$06,$06,$06,$05,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08, // f0-ff
196 // maps a combination of a state of the automaton and a character class to a state
197 $00,$0c,$18,$24,$3c,$60,$54,$0c,$0c,$0c,$30,$48,$0c,$0c,$0c,$0c, // 100-10f
198 $0c,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$00,$0c,$0c,$0c,$0c,$0c,$00, // 110-11f
199 $0c,$00,$0c,$0c,$0c,$18,$0c,$0c,$0c,$0c,$0c,$18,$0c,$18,$0c,$0c, // 120-12f
200 $0c,$0c,$0c,$0c,$0c,$0c,$0c,$18,$0c,$0c,$0c,$0c,$0c,$18,$0c,$0c, // 130-13f
201 $0c,$0c,$0c,$0c,$0c,$18,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$24, // 140-14f
202 $0c,$24,$0c,$0c,$0c,$24,$0c,$0c,$0c,$0c,$0c,$24,$0c,$24,$0c,$0c, // 150-15f
203 $0c,$24,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$0c);
206 // ////////////////////////////////////////////////////////////////////////// //
207 constructor TUtf8DecoderFast
.Create (v
: Boolean{fuck you, fpc}); begin state
:= Accept
; codepoint
:= 0; end;
209 procedure TUtf8DecoderFast
.reset (); inline; begin state
:= Accept
; codepoint
:= 0; end;
211 function TUtf8DecoderFast
.complete (): Boolean; inline; begin result
:= (state
= Accept
); end;
212 function TUtf8DecoderFast
.invalid (): Boolean; inline; begin result
:= (state
= Reject
); end;
213 function TUtf8DecoderFast
.completeOrInvalid (): Boolean; inline; begin result
:= (state
= Accept
) or (state
= Reject
); end;
215 function TUtf8DecoderFast
.decode (c
: AnsiChar): Boolean; inline; overload
; begin result
:= decode(Byte(c
)); end;
217 function TUtf8DecoderFast
.decode (b
: Byte): Boolean; inline; overload
;
221 if (state
= Reject
) then begin state
:= Accept
; codepoint
:= 0; end;
223 if (state
<> Accept
) then codepoint
:= (b
and $3f) or (codepoint
shl 6) else codepoint
:= ($ff shr tp
) and b
;
224 state
:= utf8dfa
[256+state
+tp
];
225 if (state
= Reject
) then begin codepoint
:= Replacement
; state
:= Accept
; end;
226 result
:= (state
= Accept
);
230 // ////////////////////////////////////////////////////////////////////////// //
231 function wchar2win (wc
: WideChar): AnsiChar; inline;
233 if not wc2shitmapInited
then initShitMap();
234 if (LongWord(wc
) > 65535) then result
:= '?' else result
:= wc2shitmap
[LongWord(wc
)];
238 // ////////////////////////////////////////////////////////////////////////// //
239 function utf2win (const s
: AnsiString): AnsiString;
242 ud
: TUtf8DecoderFast
;
244 for f
:= 1 to Length(s
) do
246 if (Byte(s
[f
]) > 127) then
248 ud
:= TUtf8DecoderFast
.Create(true);
250 for c
:= 1 to Length(s
) do
252 if ud
.decode(s
[c
]) then result
+= wchar2win(WideChar(ud
.codepoint
));
261 function win2utf (const s
: AnsiString): AnsiString;
265 function utf8Encode (code
: Integer): AnsiString;
267 if (code
< 0) or (code
> $10FFFF) then begin result
:= '?'; exit
; end;
268 if (code
<= $7f) then
270 result
:= Char(code
and $ff);
272 else if (code
<= $7FF) then
274 result
:= Char($C0 or (code
shr 6));
275 result
+= Char($80 or (code
and $3F));
277 else if (code
<= $FFFF) then
279 result
:= Char($E0 or (code
shr 12));
280 result
+= Char($80 or ((code
shr 6) and $3F));
281 result
+= Char($80 or (code
and $3F));
283 else if (code
<= $10FFFF) then
285 result
:= Char($F0 or (code
shr 18));
286 result
+= Char($80 or ((code
shr 12) and $3F));
287 result
+= Char($80 or ((code
shr 6) and $3F));
288 result
+= Char($80 or (code
and $3F));
297 for f
:= 1 to Length(s
) do
299 if (Byte(s
[f
]) > 127) then
302 for c
:= 1 to Length(s
) do
304 if (Byte(s
[c
]) < 128) then
310 result
+= utf8Encode(cp1251
[Byte(s
[c
])-128])
320 // ////////////////////////////////////////////////////////////////////////// //
321 function digitInBase (ch
: AnsiChar; base
: Integer): Integer;
324 if (base
< 1) or (base
> 36) then exit
;
325 if (ch
< '0') then exit
;
328 if (Integer(ch
) >= 48+base
) then exit
;
329 result
:= Integer(ch
)-48;
333 if (ch
>= '0') and (ch
<= '9') then begin result
:= Integer(ch
)-48; exit
; end;
334 if (ch
>= 'a') and (ch
<= 'z') then Dec(ch
, 32); // poor man's tolower()
335 if (ch
< 'A') or (Integer(ch
) >= 65+(base
-10)) then exit
;
336 result
:= Integer(ch
)-65+10;
341 // ////////////////////////////////////////////////////////////////////////// //
342 function quoteStr (const s
: AnsiString): AnsiString;
344 function squote (const s
: AnsiString): AnsiString;
349 for f
:= 1 to Length(s
) do
351 if (s
[f
] = '''') then result
+= '''';
357 function dquote (const s
: AnsiString): AnsiString;
363 for f
:= 1 to Length(s
) do
366 if (ch
= #0) then result
+= '\z'
367 else if (ch
= #9) then result
+= '\t'
368 else if (ch
= #10) then result
+= '\n'
369 else if (ch
= #13) then result
+= '\r'
370 else if (ch
= #27) then result
+= '\e'
371 else if (ch
< ' ') or (ch
= #127) then
374 result
+= LowerCase(IntToHex(Integer(ch
), 2));
376 else if (ch
= '"') or (ch
= '\') then
390 needSingle
: Boolean = false;
393 for f
:= 1 to Length(s
) do
395 if (s
[f
] = '''') then begin needSingle
:= true; continue
; end;
396 if (s
[f
] < ' ') or (s
[f
] = #127) then begin result
:= dquote(s
); exit
; end;
398 if needSingle
then result
:= squote(s
) else result
:= ''''+s
+'''';
402 // ////////////////////////////////////////////////////////////////////////// //
403 function hasWadExtension (fn
: AnsiString): Boolean;
405 fn
:= ExtractFileExt(fn
);
406 result
:= StrEquCI1251(fn
, '.wad') or StrEquCI1251(fn
, '.pk3') or StrEquCI1251(fn
, '.zip');
410 function addWadExtension (fn
: AnsiString): AnsiString;
413 if not hasWadExtension(result
) then result
:= result
+'.wad';
417 function isWadPath (fn
: AnsiString): Boolean;
426 if (p
= 0) or (length(fn
)-p
< 1) then break
;
427 if (p
-4 > 1) and (fn
[p
-4] = '.') and ((fn
[p
+1] = '\') or (fn
[p
+1] = '/')) then
429 s
:= Copy(fn
, p
-4, 4);
430 if StrEquCI1251(s
, '.wad') or StrEquCI1251(s
, '.pk3') or StrEquCI1251(s
, '.zip') then
441 function Int64ToStrComma (i
: Int64): AnsiString;
446 f
:= Length(result
)+1;
449 Dec(f
, 3); Insert(',', result
, f
);
454 function UpCase1251 (ch
: Char): Char;
458 if (ch
>= 'a') and (ch
<= 'z') then Dec(ch
, 32);
462 if (ch
>= #224) and (ch
<= #255) then
469 #184, #186, #191: Dec(ch
, 16);
478 function LoCase1251 (ch
: Char): Char;
482 if (ch
>= 'A') and (ch
<= 'Z') then Inc(ch
, 32);
486 if (ch
>= #192) and (ch
<= #223) then
493 #168, #170, #175: Inc(ch
, 16);
502 function StrEquCI1251 (const s0
, s1
: AnsiString): Boolean;
507 if length(s0
) <> length(s1
) then exit
;
508 for i
:= 1 to length(s0
) do if UpCase1251(s0
[i
]) <> UpCase1251(s1
[i
]) then exit
;
513 // ////////////////////////////////////////////////////////////////////////// //
517 function utf8CodeLen (ch
: Word): Integer;
519 if ch
< $80 then begin result
:= 1; exit
; end;
520 if (ch
and $FE) = $FC then begin result
:= 6; exit
; end;
521 if (ch
and $FC) = $F8 then begin result
:= 5; exit
; end;
522 if (ch
and $F8) = $F0 then begin result
:= 4; exit
; end;
523 if (ch
and $F0) = $E0 then begin result
:= 3; exit
; end;
524 if (ch
and $E0) = $C0 then begin result
:= 2; exit
; end;
525 result
:= -1; // invalid
529 function utf8Valid (const s
: AnsiString): Boolean;
535 while pos
<= length(s
) do
537 len
:= utf8CodeLen(Byte(s
[pos
]));
538 if len
< 1 then exit
; // invalid sequence start
539 if pos
+len
-1 > length(s
) then exit
; // out of chars in string
542 // check other sequence bytes
545 if (Byte(s
[pos
]) and $C0) <> $80 then exit
;
554 // ////////////////////////////////////////////////////////////////////////// //
556 uni2wint
: array [128..255] of Word = (
557 $0402,$0403,$201A,$0453,$201E,$2026,$2020,$2021,$20AC,$2030,$0409,$2039,$040A,$040C,$040B,$040F,
558 $0452,$2018,$2019,$201C,$201D,$2022,$2013,$2014,$003F,$2122,$0459,$203A,$045A,$045C,$045B,$045F,
559 $00A0,$040E,$045E,$0408,$00A4,$0490,$00A6,$00A7,$0401,$00A9,$0404,$00AB,$00AC,$00AD,$00AE,$0407,
560 $00B0,$00B1,$0406,$0456,$0491,$00B5,$00B6,$00B7,$0451,$2116,$0454,$00BB,$0458,$0405,$0455,$0457,
561 $0410,$0411,$0412,$0413,$0414,$0415,$0416,$0417,$0418,$0419,$041A,$041B,$041C,$041D,$041E,$041F,
562 $0420,$0421,$0422,$0423,$0424,$0425,$0426,$0427,$0428,$0429,$042A,$042B,$042C,$042D,$042E,$042F,
563 $0430,$0431,$0432,$0433,$0434,$0435,$0436,$0437,$0438,$0439,$043A,$043B,$043C,$043D,$043E,$043F,
564 $0440,$0441,$0442,$0443,$0444,$0445,$0446,$0447,$0448,$0449,$044A,$044B,$044C,$044D,$044E,$044F
568 function decodeUtf8Char (s
: AnsiString; var pos
: Integer): char;
572 (* The following encodings are valid, except for the 5 and 6 byte
576 * 1110xxxx 10xxxxxx 10xxxxxx
577 * 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
578 * 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
579 * 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
582 if pos
> length(s
) then exit
;
586 if b
< $80 then begin result
:= char(b
); exit
; end;
588 // mask out unused bits
589 if (b
and $FE) = $FC then b
:= b
and $01
590 else if (b
and $FC) = $F8 then b
:= b
and $03
591 else if (b
and $F8) = $F0 then b
:= b
and $07
592 else if (b
and $F0) = $E0 then b
:= b
and $0F
593 else if (b
and $E0) = $C0 then b
:= b
and $1F
594 else exit
; // invalid utf8
597 while pos
<= length(s
) do
600 if (c
and $C0) <> $80 then break
; // no more
602 b
:= b
or (c
and $3F);
607 for c
:= 128 to 255 do if uni2wint
[c
] = b
then begin result
:= char(c
and $FF); exit
; end;
612 function utf8to1251 (s
: AnsiString): AnsiString;
616 if not utf8Valid(s
) then begin result
:= s
; exit
; end;
618 while pos
<= length(s
) do
620 if Byte(s
[pos
]) >= $80 then break
;
623 if pos
> length(s
) then begin result
:= s
; exit
; end; // nothing to do here
626 while pos
<= length(s
) do result
:= result
+decodeUtf8Char(s
, pos
);
630 // ////////////////////////////////////////////////////////////////////////// //
631 // `pathname` will be modified if path is valid
632 // `lastIsDir` should be `true` if we are searching for directory
633 // nobody cares about shitdoze, so i'll use the same code path for it
634 function findFileCI (var pathname
: AnsiString; lastIsDir
: Boolean=false): Boolean;
638 newname
: AnsiString = '';
645 result
:= (length(npt
) > 0);
646 if (length(npt
) > 0) and ((npt
[1] = '/') or (npt
[1] = '\')) then newname
:= '/';
647 while length(npt
) > 0 do
649 // remove trailing slashes
650 while (length(npt
) > 0) and ((npt
[1] = '/') or (npt
[1] = '\')) do Delete(npt
, 1, 1);
651 if length(npt
) = 0 then break
;
654 while (length(npt
) > 0) and (npt
[1] <> '/') and (npt
[1] <> '\') do
656 curname
:= curname
+npt
[1];
659 // remove trailing slashes again
660 while (length(npt
) > 0) and ((npt
[1] = '/') or (npt
[1] = '\')) do Delete(npt
, 1, 1);
661 wantdir
:= lastIsDir
or (length(npt
) > 0); // do we want directory here?
662 //writeln(Format('npt=[%s]; newname=[%s]; curname=[%s]; wantdir=%d', [npt, newname, curname, Integer(wantdir)]));
663 // try the easiest case first
664 attr
:= FileGetAttr(newname
+curname
);
667 if wantdir
= ((attr
and faDirectory
) <> 0) then
670 newname
:= newname
+curname
;
671 if wantdir
then newname
:= newname
+'/';
675 //writeln(Format('npt=[%s]; newname=[%s]; curname=[%s]; wantdir=%d', [npt, newname, curname, Integer(wantdir)]));
676 // alas, either not found, or invalid attributes
679 if FindFirst(newname
+'*', faAnyFile
, sr
) = 0 then
681 if (wantdir
= ((sr
.attr
and faDirectory
) <> 0)) and StrEquCI1251(sr
.name
, curname
) then
684 newname
:= newname
+sr
.name
;
685 if wantdir
then newname
:= newname
+'/';
689 until FindNext(sr
) <> 0;
693 if not foundher
then begin newname
:= ''; result
:= false; break
; end;
695 if result
then pathname
:= newname
;
698 function findFileCIStr (pathname
: AnsiString): AnsiString;
704 function openDiskFileRO (pathname
: AnsiString): TStream
;
706 if not findFileCI(pathname
) then raise Exception
.Create('can''t open file "'+pathname
+'"');
707 result
:= TFileStream
.Create(pathname
, fmOpenRead
or {fmShareDenyWrite}fmShareDenyNone
);
710 function createDiskFile (pathname
: AnsiString): TStream
;
714 path
:= ExtractFilePath(pathname
);
715 if length(path
) > 0 then
717 if not findFileCI(path
, true) then raise Exception
.Create('can''t create file "'+pathname
+'"');
719 result
:= TFileStream
.Create(path
+ExtractFileName(pathname
), fmCreate
);
723 procedure writeIntegerLE (st
: TStream
; vp
: Pointer; size
: Integer);
724 {$IFDEF ENDIAN_LITTLE}
726 st
.writeBuffer(vp
^, size
);
732 p
:= PByte(vp
)+size
-1;
735 st
.writeBuffer(p
^, 1);
742 procedure writeIntegerBE (st
: TStream
; vp
: Pointer; size
: Integer);
743 {$IFDEF ENDIAN_LITTLE}
747 p
:= PByte(vp
)+size
-1;
750 st
.writeBuffer(p
^, 1);
757 st
.writeBuffer(vp
^, size
);
761 procedure writeInt (st
: TStream
; v
: Byte); overload
; begin writeIntegerLE(st
, @v
, 1); end;
762 procedure writeInt (st
: TStream
; v
: ShortInt); overload
; begin writeIntegerLE(st
, @v
, 1); end;
763 procedure writeInt (st
: TStream
; v
: Word); overload
; begin writeIntegerLE(st
, @v
, 2); end;
764 procedure writeInt (st
: TStream
; v
: SmallInt); overload
; begin writeIntegerLE(st
, @v
, 2); end;
765 procedure writeInt (st
: TStream
; v
: LongWord); overload
; begin writeIntegerLE(st
, @v
, 4); end;
766 procedure writeInt (st
: TStream
; v
: LongInt); overload
; begin writeIntegerLE(st
, @v
, 4); end;
767 procedure writeInt (st
: TStream
; v
: Int64); overload
; begin writeIntegerLE(st
, @v
, 8); end;
768 procedure writeInt (st
: TStream
; v
: UInt64); overload
; begin writeIntegerLE(st
, @v
, 8); end;
770 procedure writeIntBE (st
: TStream
; v
: Byte); overload
; begin writeIntegerBE(st
, @v
, 1); end;
771 procedure writeIntBE (st
: TStream
; v
: ShortInt); overload
; begin writeIntegerBE(st
, @v
, 1); end;
772 procedure writeIntBE (st
: TStream
; v
: Word); overload
; begin writeIntegerBE(st
, @v
, 2); end;
773 procedure writeIntBE (st
: TStream
; v
: SmallInt); overload
; begin writeIntegerBE(st
, @v
, 2); end;
774 procedure writeIntBE (st
: TStream
; v
: LongWord); overload
; begin writeIntegerBE(st
, @v
, 4); end;
775 procedure writeIntBE (st
: TStream
; v
: LongInt); overload
; begin writeIntegerBE(st
, @v
, 4); end;
776 procedure writeIntBE (st
: TStream
; v
: Int64); overload
; begin writeIntegerBE(st
, @v
, 8); end;
777 procedure writeIntBE (st
: TStream
; v
: UInt64); overload
; begin writeIntegerBE(st
, @v
, 8); end;
780 procedure readIntegerLE (st
: TStream
; vp
: Pointer; size
: Integer);
781 {$IFDEF ENDIAN_LITTLE}
783 st
.readBuffer(vp
^, size
);
789 p
:= PByte(vp
)+size
-1;
792 st
.readBuffer(p
^, 1);
799 procedure readIntegerBE (st
: TStream
; vp
: Pointer; size
: Integer);
800 {$IFDEF ENDIAN_LITTLE}
804 p
:= PByte(vp
)+size
-1;
807 st
.readBuffer(p
^, 1);
814 st
.readBuffer(vp
^, size
);
818 function readByte (st
: TStream
): Byte; begin readIntegerLE(st
, @result
, 1); end;
819 function readShortInt (st
: TStream
): ShortInt; begin readIntegerLE(st
, @result
, 1); end;
820 function readWord (st
: TStream
): Word; begin readIntegerLE(st
, @result
, 2); end;
821 function readSmallInt (st
: TStream
): SmallInt; begin readIntegerLE(st
, @result
, 2); end;
822 function readLongWord (st
: TStream
): LongWord; begin readIntegerLE(st
, @result
, 4); end;
823 function readLongInt (st
: TStream
): LongInt; begin readIntegerLE(st
, @result
, 4); end;
824 function readInt64 (st
: TStream
): Int64; begin readIntegerLE(st
, @result
, 8); end;
825 function readUInt64 (st
: TStream
): UInt64; begin readIntegerLE(st
, @result
, 8); end;
827 function readByteBE (st
: TStream
): Byte; begin readIntegerBE(st
, @result
, 1); end;
828 function readShortIntBE (st
: TStream
): ShortInt; begin readIntegerBE(st
, @result
, 1); end;
829 function readWordBE (st
: TStream
): Word; begin readIntegerBE(st
, @result
, 2); end;
830 function readSmallIntBE (st
: TStream
): SmallInt; begin readIntegerBE(st
, @result
, 2); end;
831 function readLongWordBE (st
: TStream
): LongWord; begin readIntegerBE(st
, @result
, 4); end;
832 function readLongIntBE (st
: TStream
): LongInt; begin readIntegerBE(st
, @result
, 4); end;
833 function readInt64BE (st
: TStream
): Int64; begin readIntegerBE(st
, @result
, 8); end;
834 function readUInt64BE (st
: TStream
): UInt64; begin readIntegerBE(st
, @result
, 8); end;