diff --git a/src/shared/utils.pas b/src/shared/utils.pas
index 5ef58845df0057b088866ef616bbf1e1f6b3ebcf..bf8abf4fbc98a8d0ce8de1b687e6b35da9d63cd7 100644 (file)
--- a/src/shared/utils.pas
+++ b/src/shared/utils.pas
interface
uses
- SysUtils, Classes;
+ SysUtils, Classes, md5;
// ////////////////////////////////////////////////////////////////////////// //
SSArray = array of ShortString;
+const wadExtensions: array [0..6] of AnsiString = (
+ '.dfz',
+ '.wad',
+ '.dfwad',
+ '.pk3',
+ '.pak',
+ '.zip',
+ '.dfzip'
+);
+
+
// ////////////////////////////////////////////////////////////////////////// //
type
TUtf8DecoderFast = packed record
function setFilenameExt (const fn, ext: AnsiString): AnsiString;
function forceFilenameExt (const fn, ext: AnsiString): AnsiString;
+// rewrites slashes to '/'
+function fixSlashes (s: AnsiString): AnsiString;
+
+function isAbsolutePath (const s: AnsiString): Boolean;
+function isRootPath (const s: AnsiString): Boolean;
+
// strips out name from `fn`, leaving trailing slash
function getFilenamePath (const fn: AnsiString): AnsiString;
function upcase1251 (ch: AnsiChar): AnsiChar; inline;
function locase1251 (ch: AnsiChar): AnsiChar; inline;
+function IsValid1251 (ch: Word): Boolean;
+function IsPrintable1251 (ch: AnsiChar): Boolean;
function toLowerCase1251 (const s: AnsiString): AnsiString;
function utf8to1251 (s: AnsiString): AnsiString;
-// `pathname` will be modified if path is valid
-// `lastIsDir` should be `true` if we are searching for directory
-// nobody cares about shitdoze, so i'll use the same code path for it
+// findFileCI takes case-insensitive path, traverses it, and rewrites it to
+// a case-sensetive one (using real on-disk names). return value means 'success'.
+// if some dir or file wasn't found, pathname is undefined (destroyed, but not
+// necessarily cleared).
+// last name assumed to be a file, not directory (unless `lastIsDir` flag is set).
function findFileCI (var pathname: AnsiString; lastIsDir: Boolean=false): Boolean;
-// return fixed AnsiString or empty AnsiString
+// findDiskWad tries to find the wad file using common wad extensions
+// (see `wadExtensions` array).
+// returns real on-disk filename, or empty string.
+// original wad extension is used as a hint for the first try.
+// also, this automatically performs `findFileCI()`.
function findDiskWad (fname: AnsiString): AnsiString;
// slashes must be normalized!
function isWadNamesEqu (wna, wnb: AnsiString): Boolean;
// they throws
function openDiskFileRO (pathname: AnsiString): TStream;
function createDiskFile (pathname: AnsiString): TStream;
-// creates file if necessary
+// create file if necessary, but don't truncate the existing one
function openDiskFileRW (pathname: AnsiString): TStream;
// little endian
procedure ZeroMemory (Dest: Pointer; Len: LongWord); inline;
+type
+ TDiskFileInfo = record
+ diskName: AnsiString;
+ size: LongInt;
+ age: LongInt;
+ // not changed by info getter; used in other parts of the code
+ userName: AnsiString;
+ tag: Integer;
+ hash: TMD5Digest;
+ udata: Pointer;
+ end;
+
+function GetDiskFileInfo (fname: AnsiString; var info: TDiskFileInfo): Boolean;
+
+
implementation
uses
xstreams;
-const wadExtensions: array [0..6] of AnsiString = (
- '.dfz',
- '.wad',
- '.dfwad',
- '.pk3',
- '.pak',
- '.zip',
- '.dfzip'
-);
-
-
// ////////////////////////////////////////////////////////////////////////// //
procedure CopyMemory (Dest: Pointer; Src: Pointer; Len: LongWord); inline;
begin
end;
+// ////////////////////////////////////////////////////////////////////////// //
+// rewrites slashes to '/'
+function fixSlashes (s: AnsiString): AnsiString;
+var
+ f: Integer;
+begin
+ result := s;
+ for f := 1 to length(result) do if (result[f] = '\') then result[f] := '/';
+end;
+
+
+function isAbsolutePath (const s: AnsiString): Boolean;
+begin
+ result := false;
+ if (length(s) = 0) then exit;
+ {$IFDEF WINDOWS}
+ if (s[1] = '/') or (s[1] = '\') then begin result := true; exit; end;
+ if (length(s) > 2) and (s[2] = ':') and ((s[3] = '/') or (s[3] = '\')) then begin result := true; exit; end;
+ {$ELSE}
+ result := (s[1] = '/');
+ {$ENDIF}
+end;
+
+
+function isRootPath (const s: AnsiString): Boolean;
+begin
+ result := false;
+ if (length(s) = 0) then exit;
+ {$IFDEF WINDOWS}
+ if (s = '/') or (s = '\') then begin result := true; exit; end;
+ if (length(s) = 3) and (s[2] = ':') and ((s[3] = '/') or (s[3] = '\')) then begin result := true; exit; end;
+ {$ELSE}
+ result := (s = '/');
+ {$ENDIF}
+end;
+
+
// ////////////////////////////////////////////////////////////////////////// //
constructor TSimpleList.TEnumerator.Create (const aitems: TItemArr; acount: Integer);
begin
function isWadPath (const fn: AnsiString): Boolean;
var
pos: Integer;
- s: AnsiString;
+ s, wext: AnsiString;
begin
result := false;
pos := 1;
if (pos-4 > 1) and (fn[pos-4] = '.') and ((fn[pos+1] = '\') or (fn[pos+1] = '/')) then
begin
s := Copy(fn, pos-4, 4);
- if StrEquCI1251(s, '.wad') or StrEquCI1251(s, '.pk3') or StrEquCI1251(s, '.zip') or StrEquCI1251(s, '.dfz') then
+ for wext in wadExtensions do
begin
- result := true;
- exit;
+ if strEquCI1251(s, wext) then
+ begin
+ result := true;
+ exit;
+ end;
end;
end;
end;
result := ch;
end;
+function IsValid1251 (ch: Word): Boolean;
+begin
+ result := (ch = Ord('?')) or (wc2shitmap[ch] <> '?')
+end;
+
+function IsPrintable1251 (ch: AnsiChar): Boolean;
+begin
+ result := (ch >= #32) and (ch <> #127)
+end;
+
function strEquCI1251 (const s0, s1: AnsiString): Boolean;
var
// ////////////////////////////////////////////////////////////////////////// //
-// `pathname` will be modified if path is valid
-// `lastIsDir` should be `true` if we are searching for directory
-// nobody cares about shitdoze, so i'll use the same code path for it
+// findFileCI eats case-insensitive path, traverses it and rewrites it to a
+// case-sensetive. result value means success.
+// if file/dir not founded than pathname is in undefined state!
function findFileCI (var pathname: AnsiString; lastIsDir: Boolean=false): Boolean;
var
sr: TSearchRec;
end;
+function GetDiskFileInfo (fname: AnsiString; var info: TDiskFileInfo): Boolean;
+var
+ age: LongInt;
+ size: LongInt;
+ handle: THandle;
+begin
+ result := false;
+ if (length(fname) = 0) then exit;
+ if not findFileCI(fname) then exit;
+ // get age
+ age := FileAge(fname);
+ if (age = -1) then exit;
+ // get size
+ handle := FileOpen(fname, fmOpenRead or fmShareDenyNone);
+ if (handle = THandle(-1)) then exit;
+ size := FileSeek(handle, 0, fsFromEnd);
+ FileClose(handle);
+ if (size = -1) then exit;
+ // fill info
+ info.diskName := fname;
+ info.size := size;
+ info.age := age;
+ result := true;
+end;
+
+
(*
var
ss: ShortString;