10 // does filename have one of ".wad", ".pk3", ".zip" extensions?
11 function hasWadExtension (fn
: AnsiString): Boolean;
13 // does filepath have ".XXX:\" in it?
14 function isWadPath (fn
: AnsiString): Boolean;
16 // adds ".wad" extension if filename doesn't have one of ".wad", ".pk3", ".zip"
17 function addWadExtension (fn
: AnsiString): AnsiString;
19 // convert number to strig with nice commas
20 function Int64ToStrComma (i
: Int64): AnsiString;
22 function UpCase1251 (ch
: Char): Char;
23 function LoCase1251 (ch
: Char): Char;
25 // `true` if strings are equal; ignoring case for cp1251
26 function StrEquCI1251 (const s0
, s1
: AnsiString): Boolean;
28 function utf8Valid (const s
: AnsiString): Boolean;
30 function utf8to1251 (s
: AnsiString): AnsiString;
32 // `pathname` will be modified if path is valid
33 // `lastIsDir` should be `true` if we are searching for directory
34 // nobody cares about shitdoze, so i'll use the same code path for it
35 function findFileCI (var pathname
: AnsiString; lastIsDir
: Boolean=false): Boolean;
38 function openDiskFileRO (pathname
: AnsiString): TStream
;
39 function createDiskFile (pathname
: AnsiString): TStream
;
42 procedure writeInt (st
: TStream
; v
: Byte); overload
;
43 procedure writeInt (st
: TStream
; v
: ShortInt); overload
;
44 procedure writeInt (st
: TStream
; v
: Word); overload
;
45 procedure writeInt (st
: TStream
; v
: SmallInt); overload
;
46 procedure writeInt (st
: TStream
; v
: LongWord); overload
;
47 procedure writeInt (st
: TStream
; v
: LongInt); overload
;
48 procedure writeInt (st
: TStream
; v
: Int64); overload
;
49 procedure writeInt (st
: TStream
; v
: UInt64); overload
;
51 function readByte (st
: TStream
): Byte;
52 function readShortInt (st
: TStream
): ShortInt;
53 function readWord (st
: TStream
): Word;
54 function readSmallInt (st
: TStream
): SmallInt;
55 function readLongWord (st
: TStream
): LongWord;
56 function readLongInt (st
: TStream
): LongInt;
57 function readInt64 (st
: TStream
): Int64;
58 function readUInt64 (st
: TStream
): UInt64;
61 procedure writeIntBE (st
: TStream
; v
: Byte); overload
;
62 procedure writeIntBE (st
: TStream
; v
: ShortInt); overload
;
63 procedure writeIntBE (st
: TStream
; v
: Word); overload
;
64 procedure writeIntBE (st
: TStream
; v
: SmallInt); overload
;
65 procedure writeIntBE (st
: TStream
; v
: LongWord); overload
;
66 procedure writeIntBE (st
: TStream
; v
: LongInt); overload
;
67 procedure writeIntBE (st
: TStream
; v
: Int64); overload
;
68 procedure writeIntBE (st
: TStream
; v
: UInt64); overload
;
70 function readByteBE (st
: TStream
): Byte;
71 function readShortIntBE (st
: TStream
): ShortInt;
72 function readWordBE (st
: TStream
): Word;
73 function readSmallIntBE (st
: TStream
): SmallInt;
74 function readLongWordBE (st
: TStream
): LongWord;
75 function readLongIntBE (st
: TStream
): LongInt;
76 function readInt64BE (st
: TStream
): Int64;
77 function readUInt64BE (st
: TStream
): UInt64;
83 function hasWadExtension (fn
: AnsiString): Boolean;
85 fn
:= ExtractFileExt(fn
);
86 result
:= StrEquCI1251(fn
, '.wad') or StrEquCI1251(fn
, '.pk3') or StrEquCI1251(fn
, '.zip');
90 function addWadExtension (fn
: AnsiString): AnsiString;
93 if not hasWadExtension(result
) then result
:= result
+'.wad';
97 function isWadPath (fn
: AnsiString): Boolean;
106 if (p
= 0) or (length(fn
)-p
< 1) then break
;
107 if (p
-4 > 1) and (fn
[p
-4] = '.') and ((fn
[p
+1] = '\') or (fn
[p
+1] = '/')) then
109 s
:= Copy(fn
, p
-4, 4);
110 if StrEquCI1251(s
, '.wad') or StrEquCI1251(s
, '.pk3') or StrEquCI1251(s
, '.zip') then
121 function Int64ToStrComma (i
: Int64): AnsiString;
126 f
:= Length(result
)+1;
129 Dec(f
, 3); Insert(',', result
, f
);
134 function UpCase1251 (ch
: Char): Char;
138 if (ch
>= 'a') and (ch
<= 'z') then Dec(ch
, 32);
142 if (ch
>= #224) and (ch
<= #255) then
149 #184, #186, #191: Dec(ch
, 16);
158 function LoCase1251 (ch
: Char): Char;
162 if (ch
>= 'A') and (ch
<= 'Z') then Inc(ch
, 32);
166 if (ch
>= #192) and (ch
<= #223) then
173 #168, #170, #175: Inc(ch
, 16);
182 function StrEquCI1251 (const s0
, s1
: AnsiString): Boolean;
187 if length(s0
) <> length(s1
) then exit
;
188 for i
:= 1 to length(s0
) do if UpCase1251(s0
[i
]) <> UpCase1251(s1
[i
]) then exit
;
193 // ////////////////////////////////////////////////////////////////////////// //
197 function utf8CodeLen (ch
: Word): Integer;
199 if ch
< $80 then begin result
:= 1; exit
; end;
200 if (ch
and $FE) = $FC then begin result
:= 6; exit
; end;
201 if (ch
and $FC) = $F8 then begin result
:= 5; exit
; end;
202 if (ch
and $F8) = $F0 then begin result
:= 4; exit
; end;
203 if (ch
and $F0) = $E0 then begin result
:= 3; exit
; end;
204 if (ch
and $E0) = $C0 then begin result
:= 2; exit
; end;
205 result
:= -1; // invalid
209 function utf8Valid (const s
: AnsiString): Boolean;
215 while pos
<= length(s
) do
217 len
:= utf8CodeLen(Byte(s
[pos
]));
218 if len
< 1 then exit
; // invalid sequence start
219 if pos
+len
-1 > length(s
) then exit
; // out of chars in string
222 // check other sequence bytes
225 if (Byte(s
[pos
]) and $C0) <> $80 then exit
;
234 // ////////////////////////////////////////////////////////////////////////// //
236 uni2wint
: array [128..255] of Word = (
237 $0402,$0403,$201A,$0453,$201E,$2026,$2020,$2021,$20AC,$2030,$0409,$2039,$040A,$040C,$040B,$040F,
238 $0452,$2018,$2019,$201C,$201D,$2022,$2013,$2014,$003F,$2122,$0459,$203A,$045A,$045C,$045B,$045F,
239 $00A0,$040E,$045E,$0408,$00A4,$0490,$00A6,$00A7,$0401,$00A9,$0404,$00AB,$00AC,$00AD,$00AE,$0407,
240 $00B0,$00B1,$0406,$0456,$0491,$00B5,$00B6,$00B7,$0451,$2116,$0454,$00BB,$0458,$0405,$0455,$0457,
241 $0410,$0411,$0412,$0413,$0414,$0415,$0416,$0417,$0418,$0419,$041A,$041B,$041C,$041D,$041E,$041F,
242 $0420,$0421,$0422,$0423,$0424,$0425,$0426,$0427,$0428,$0429,$042A,$042B,$042C,$042D,$042E,$042F,
243 $0430,$0431,$0432,$0433,$0434,$0435,$0436,$0437,$0438,$0439,$043A,$043B,$043C,$043D,$043E,$043F,
244 $0440,$0441,$0442,$0443,$0444,$0445,$0446,$0447,$0448,$0449,$044A,$044B,$044C,$044D,$044E,$044F
248 function decodeUtf8Char (s
: AnsiString; var pos
: Integer): char;
252 (* The following encodings are valid, except for the 5 and 6 byte
256 * 1110xxxx 10xxxxxx 10xxxxxx
257 * 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
258 * 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
259 * 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
262 if pos
> length(s
) then exit
;
266 if b
< $80 then begin result
:= char(b
); exit
; end;
268 // mask out unused bits
269 if (b
and $FE) = $FC then b
:= b
and $01
270 else if (b
and $FC) = $F8 then b
:= b
and $03
271 else if (b
and $F8) = $F0 then b
:= b
and $07
272 else if (b
and $F0) = $E0 then b
:= b
and $0F
273 else if (b
and $E0) = $C0 then b
:= b
and $1F
274 else exit
; // invalid utf8
277 while pos
<= length(s
) do
280 if (c
and $C0) <> $80 then break
; // no more
282 b
:= b
or (c
and $3F);
287 for c
:= 128 to 255 do if uni2wint
[c
] = b
then begin result
:= char(c
and $FF); exit
; end;
292 function utf8to1251 (s
: AnsiString): AnsiString;
296 if not utf8Valid(s
) then begin result
:= s
; exit
; end;
298 while pos
<= length(s
) do
300 if Byte(s
[pos
]) >= $80 then break
;
303 if pos
> length(s
) then begin result
:= s
; exit
; end; // nothing to do here
306 while pos
<= length(s
) do result
:= result
+decodeUtf8Char(s
, pos
);
310 // ////////////////////////////////////////////////////////////////////////// //
311 // `pathname` will be modified if path is valid
312 // `lastIsDir` should be `true` if we are searching for directory
313 // nobody cares about shitdoze, so i'll use the same code path for it
314 function findFileCI (var pathname
: AnsiString; lastIsDir
: Boolean=false): Boolean;
318 newname
: AnsiString = '';
325 result
:= (length(npt
) > 0);
326 if (length(npt
) > 0) and ((npt
[1] = '/') or (npt
[1] = '\')) then newname
:= '/';
327 while length(npt
) > 0 do
329 // remove trailing slashes
330 while (length(npt
) > 0) and ((npt
[1] = '/') or (npt
[1] = '\')) do Delete(npt
, 1, 1);
331 if length(npt
) = 0 then break
;
334 while (length(npt
) > 0) and (npt
[1] <> '/') and (npt
[1] <> '\') do
336 curname
:= curname
+npt
[1];
339 // remove trailing slashes again
340 while (length(npt
) > 0) and ((npt
[1] = '/') or (npt
[1] = '\')) do Delete(npt
, 1, 1);
341 wantdir
:= lastIsDir
or (length(npt
) > 0); // do we want directory here?
342 //writeln(Format('npt=[%s]; newname=[%s]; curname=[%s]; wantdir=%d', [npt, newname, curname, Integer(wantdir)]));
343 // try the easiest case first
344 attr
:= FileGetAttr(newname
+curname
);
347 if wantdir
= ((attr
and faDirectory
) <> 0) then
350 newname
:= newname
+curname
;
351 if wantdir
then newname
:= newname
+'/';
355 //writeln(Format('npt=[%s]; newname=[%s]; curname=[%s]; wantdir=%d', [npt, newname, curname, Integer(wantdir)]));
356 // alas, either not found, or invalid attributes
359 if FindFirst(newname
+'*', faAnyFile
, sr
) = 0 then
361 if (wantdir
= ((sr
.attr
and faDirectory
) <> 0)) and StrEquCI1251(sr
.name
, curname
) then
364 newname
:= newname
+sr
.name
;
365 if wantdir
then newname
:= newname
+'/';
369 until FindNext(sr
) <> 0;
373 if not foundher
then begin newname
:= ''; result
:= false; break
; end;
375 if result
then pathname
:= newname
;
379 function openDiskFileRO (pathname
: AnsiString): TStream
;
381 if not findFileCI(pathname
) then raise Exception
.Create('can''t open file "'+pathname
+'"');
382 result
:= TFileStream
.Create(pathname
, fmOpenRead
or {fmShareDenyWrite}fmShareDenyNone
);
385 function createDiskFile (pathname
: AnsiString): TStream
;
389 path
:= ExtractFilePath(pathname
);
390 if length(path
) > 0 then
392 if not findFileCI(path
, true) then raise Exception
.Create('can''t create file "'+pathname
+'"');
394 result
:= TFileStream
.Create(path
+ExtractFileName(pathname
), fmCreate
);
398 procedure writeIntegerLE (st
: TStream
; vp
: Pointer; size
: Integer);
399 {$IFDEF ENDIAN_LITTLE}
401 st
.writeBuffer(vp
^, size
);
407 p
:= PByte(vp
)+size
-1;
410 st
.writeBuffer(p
^, 1);
417 procedure writeIntegerBE (st
: TStream
; vp
: Pointer; size
: Integer);
418 {$IFDEF ENDIAN_LITTLE}
422 p
:= PByte(vp
)+size
-1;
425 st
.writeBuffer(p
^, 1);
432 st
.writeBuffer(vp
^, size
);
436 procedure writeInt (st
: TStream
; v
: Byte); overload
; begin writeIntegerLE(st
, @v
, 1); end;
437 procedure writeInt (st
: TStream
; v
: ShortInt); overload
; begin writeIntegerLE(st
, @v
, 1); end;
438 procedure writeInt (st
: TStream
; v
: Word); overload
; begin writeIntegerLE(st
, @v
, 2); end;
439 procedure writeInt (st
: TStream
; v
: SmallInt); overload
; begin writeIntegerLE(st
, @v
, 2); end;
440 procedure writeInt (st
: TStream
; v
: LongWord); overload
; begin writeIntegerLE(st
, @v
, 4); end;
441 procedure writeInt (st
: TStream
; v
: LongInt); overload
; begin writeIntegerLE(st
, @v
, 4); end;
442 procedure writeInt (st
: TStream
; v
: Int64); overload
; begin writeIntegerLE(st
, @v
, 8); end;
443 procedure writeInt (st
: TStream
; v
: UInt64); overload
; begin writeIntegerLE(st
, @v
, 8); end;
445 procedure writeIntBE (st
: TStream
; v
: Byte); overload
; begin writeIntegerBE(st
, @v
, 1); end;
446 procedure writeIntBE (st
: TStream
; v
: ShortInt); overload
; begin writeIntegerBE(st
, @v
, 1); end;
447 procedure writeIntBE (st
: TStream
; v
: Word); overload
; begin writeIntegerBE(st
, @v
, 2); end;
448 procedure writeIntBE (st
: TStream
; v
: SmallInt); overload
; begin writeIntegerBE(st
, @v
, 2); end;
449 procedure writeIntBE (st
: TStream
; v
: LongWord); overload
; begin writeIntegerBE(st
, @v
, 4); end;
450 procedure writeIntBE (st
: TStream
; v
: LongInt); overload
; begin writeIntegerBE(st
, @v
, 4); end;
451 procedure writeIntBE (st
: TStream
; v
: Int64); overload
; begin writeIntegerBE(st
, @v
, 8); end;
452 procedure writeIntBE (st
: TStream
; v
: UInt64); overload
; begin writeIntegerBE(st
, @v
, 8); end;
455 procedure readIntegerLE (st
: TStream
; vp
: Pointer; size
: Integer);
456 {$IFDEF ENDIAN_LITTLE}
458 st
.readBuffer(vp
^, size
);
464 p
:= PByte(vp
)+size
-1;
467 st
.readBuffer(p
^, 1);
474 procedure readIntegerBE (st
: TStream
; vp
: Pointer; size
: Integer);
475 {$IFDEF ENDIAN_LITTLE}
479 p
:= PByte(vp
)+size
-1;
482 st
.readBuffer(p
^, 1);
489 st
.readBuffer(vp
^, size
);
493 function readByte (st
: TStream
): Byte; begin readIntegerLE(st
, @result
, 1); end;
494 function readShortInt (st
: TStream
): ShortInt; begin readIntegerLE(st
, @result
, 1); end;
495 function readWord (st
: TStream
): Word; begin readIntegerLE(st
, @result
, 2); end;
496 function readSmallInt (st
: TStream
): SmallInt; begin readIntegerLE(st
, @result
, 2); end;
497 function readLongWord (st
: TStream
): LongWord; begin readIntegerLE(st
, @result
, 4); end;
498 function readLongInt (st
: TStream
): LongInt; begin readIntegerLE(st
, @result
, 4); end;
499 function readInt64 (st
: TStream
): Int64; begin readIntegerLE(st
, @result
, 8); end;
500 function readUInt64 (st
: TStream
): UInt64; begin readIntegerLE(st
, @result
, 8); end;
502 function readByteBE (st
: TStream
): Byte; begin readIntegerBE(st
, @result
, 1); end;
503 function readShortIntBE (st
: TStream
): ShortInt; begin readIntegerBE(st
, @result
, 1); end;
504 function readWordBE (st
: TStream
): Word; begin readIntegerBE(st
, @result
, 2); end;
505 function readSmallIntBE (st
: TStream
): SmallInt; begin readIntegerBE(st
, @result
, 2); end;
506 function readLongWordBE (st
: TStream
): LongWord; begin readIntegerBE(st
, @result
, 4); end;
507 function readLongIntBE (st
: TStream
): LongInt; begin readIntegerBE(st
, @result
, 4); end;
508 function readInt64BE (st
: TStream
): Int64; begin readIntegerBE(st
, @result
, 8); end;
509 function readUInt64BE (st
: TStream
): UInt64; begin readIntegerBE(st
, @result
, 8); end;