From 678cc132f942ff4d84a803550eedf96acc543bca Mon Sep 17 00:00:00 2001 From: tobigun Date: Sun, 23 May 2010 09:07:15 +0000 Subject: update to trunk rev. 2391 git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/branches/experimental@2401 b956fd51-792f-4845-bead-9b4dfca2ff2c --- cmake/src/base/UCommon.pas | 346 ++++++++++++++------------------------------- 1 file changed, 104 insertions(+), 242 deletions(-) (limited to 'cmake/src/base/UCommon.pas') diff --git a/cmake/src/base/UCommon.pas b/cmake/src/base/UCommon.pas index d729b6dd..18022337 100644 --- a/cmake/src/base/UCommon.pas +++ b/cmake/src/base/UCommon.pas @@ -39,9 +39,29 @@ uses {$IFDEF MSWINDOWS} Windows, {$ENDIF} - sdl, UConfig, - ULog; + ULog, + UPath; + +type + TStringDynArray = array of string; + TUTF8StringDynArray = array of UTF8String; + +const + SepWhitespace = [#9, #10, #13, ' ']; // tab, lf, cr, space + +{** + * Splits a string into pieces separated by Separators. + * MaxCount specifies the max. number of pieces. If it is <= 0 the number is + * not limited. If > 0 the last array element will hold the rest of the string + * (with leading separators removed). + * + * Examples: + * SplitString(' split me now ', 0) -> ['split', 'me', 'now'] + * SplitString(' split me now ', 1) -> ['split', 'me now'] + *} +function SplitString(const Str: string; MaxCount: integer = 0; Separators: TSysCharSet = SepWhitespace): TStringDynArray; + type TMessageType = (mtInfo, mtError); @@ -50,49 +70,27 @@ procedure ShowMessage(const msg: string; msgType: TMessageType = mtInfo); procedure ConsoleWriteLn(const msg: string); -function RWopsFromStream(Stream: TStream): PSDL_RWops; - {$IFDEF FPC} function RandomRange(aMin: integer; aMax: integer): integer; {$ENDIF} -function StringReplaceW(text: WideString; search, rep: WideChar): WideString; -function AdaptFilePaths(const aPath: WideString): WideString; - procedure DisableFloatingPointExceptions(); procedure SetDefaultNumericLocale(); procedure RestoreNumericLocale(); {$IFNDEF MSWINDOWS} - procedure ZeroMemory(Destination: pointer; Length: dword); - function MakeLong(a, b: word): longint; - (* - #define LOBYTE(a) (BYTE)(a) - #define HIBYTE(a) (BYTE)((a)>>8) - #define LOWORD(a) (WORD)(a) - #define HIWORD(a) (WORD)((a)>>16) - #define MAKEWORD(a,b) (WORD)(((a)&0xff)|((b)<<8)) - *) +procedure ZeroMemory(Destination: pointer; Length: dword); +function MakeLong(a, b: word): longint; {$ENDIF} -function FileExistsInsensitive(var FileName: string): boolean; - -(* - * Character classes - *) - -function IsAlphaChar(ch: WideChar): boolean; -function IsNumericChar(ch: WideChar): boolean; -function IsAlphaNumericChar(ch: WideChar): boolean; -function IsPunctuationChar(ch: WideChar): boolean; -function IsControlChar(ch: WideChar): boolean; - // A stable alternative to TList.Sort() (use TList.Sort() if applicable, see below) procedure MergeSort(List: TList; CompareFunc: TListSortCompare); function GetAlignedMem(Size: cardinal; Alignment: integer): pointer; procedure FreeAlignedMem(P: pointer); +function GetArrayIndex(const SearchArray: array of UTF8String; Value: string; CaseInsensitiv: boolean = false): integer; + implementation @@ -101,8 +99,63 @@ uses {$IFDEF Delphi} Dialogs, {$ENDIF} - UMain; + sdl, + UFilesystem, + UMain, + UUnicodeUtils; +function SplitString(const Str: string; MaxCount: integer; Separators: TSysCharSet): TStringDynArray; + + {* + * Adds Str[StartPos..Endpos-1] to the result array. + *} + procedure AddSplit(StartPos, EndPos: integer); + begin + SetLength(Result, Length(Result)+1); + Result[High(Result)] := Copy(Str, StartPos, EndPos-StartPos); + end; + +var + I: integer; + Start: integer; + Last: integer; +begin + Start := 0; + SetLength(Result, 0); + + for I := 1 to Length(Str) do + begin + if (Str[I] in Separators) then + begin + // end of component found + if (Start > 0) then + begin + AddSplit(Start, I); + Start := 0; + end; + end + else if (Start = 0) then + begin + // mark beginning of component + Start := I; + // check if this is the last component + if (Length(Result) = MaxCount-1) then + begin + // find last non-separator char + Last := Length(Str); + while (Str[Last] in Separators) do + Dec(Last); + // add component up to last non-separator + AddSplit(Start, Last); + Exit; + end; + end; + end; + + // last component + if (Start > 0) then + AddSplit(Start, Length(Str)+1); +end; // data used by the ...Locale() functions {$IF Defined(Linux) or Defined(FreeBSD)} @@ -224,39 +277,6 @@ begin exOverflow, exUnderflow, exPrecision]); end; -function StringReplaceW(text: WideString; search, rep: WideChar): WideString; -var - iPos: integer; -// sTemp: WideString; -begin -(* - result := text; - iPos := Pos(search, result); - while (iPos > 0) do - begin - sTemp := copy(result, iPos + length(search), length(result)); - result := copy(result, 1, iPos - 1) + rep + sTEmp; - iPos := Pos(search, result); - end; -*) - result := text; - - if search = rep then - exit; - - for iPos := 1 to length(result) do - begin - if result[iPos] = search then - result[iPos] := rep; - end; -end; - -function AdaptFilePaths(const aPath: WideString): WideString; -begin - result := StringReplaceW(aPath, '\', PathDelim);//, [rfReplaceAll]); -end; - - {$IFNDEF MSWINDOWS} procedure ZeroMemory(Destination: pointer; Length: dword); begin @@ -268,135 +288,8 @@ begin Result := (LongInt(B) shl 16) + A; end; -(* -function QueryPerformanceCounter(lpPerformanceCount:TLARGEINTEGER): Bool; - - // From http://en.wikipedia.org/wiki/RDTSC - function RDTSC: Int64; register; - asm - rdtsc - end; - -begin - // Use clock_gettime(CLOCK_REALTIME, ...) here (but not from the libc unit) - lpPerformanceCount := RDTSC(); - result := true; -end; - -function QueryPerformanceFrequency(lpFrequency:TLARGEINTEGER):Bool; -begin - // clock_getres(CLOCK_REALTIME, ...) - lpFrequency := 0; - result := true; -end; -*) {$ENDIF} -// Checks if a regular files or directory with the given name exists. -// The comparison is case insensitive. -function FileExistsInsensitive(var FileName: string): boolean; -var - FilePath, LocalFileName: string; - SearchInfo: TSearchRec; -begin -{$IF Defined(Linux) or Defined(FreeBSD)} - // speed up standard case - if FileExists(FileName) then - begin - Result := true; - exit; - end; - - Result := false; - - FilePath := ExtractFilePath(FileName); - if (FindFirst(FilePath + '*', faAnyFile, SearchInfo) = 0) then - begin - LocalFileName := ExtractFileName(FileName); - repeat - if (AnsiSameText(LocalFileName, SearchInfo.Name)) then - begin - FileName := FilePath + SearchInfo.Name; - Result := true; - break; - end; - until (FindNext(SearchInfo) <> 0); - end; - FindClose(SearchInfo); -{$ELSE} - // Windows and Mac OS X do not have case sensitive file systems - Result := FileExists(FileName); -{$IFEND} -end; - -// +++++++++++++++++++++ helpers for RWOpsFromStream() +++++++++++++++ -function SdlStreamSeek(context: PSDL_RWops; offset: integer; whence: integer): integer; cdecl; -var - stream: TStream; - origin: word; -begin - stream := TStream(context.unknown); - if (stream = nil) then - raise EInvalidContainer.Create('SDLStreamSeek on nil'); - case whence of - 0 : origin := soFromBeginning; // Offset is from the beginning of the resource. Seek moves to the position Offset. Offset must be >= 0. - 1 : origin := soFromCurrent; // Offset is from the current position in the resource. Seek moves to Position + Offset. - 2 : origin := soFromEnd; - else - origin := soFromBeginning; // just in case - end; - Result := stream.Seek(offset, origin); -end; - -function SdlStreamRead(context: PSDL_RWops; Ptr: pointer; size: integer; maxnum: integer): integer; cdecl; -var - stream: TStream; -begin - stream := TStream(context.unknown); - if (stream = nil) then - raise EInvalidContainer.Create('SDLStreamRead on nil'); - try - Result := stream.read(Ptr^, Size * maxnum) div size; - except - Result := -1; - end; -end; - -function SDLStreamClose(context: PSDL_RWops): integer; cdecl; -var - stream: TStream; -begin - stream := TStream(context.unknown); - if (stream = nil) then - raise EInvalidContainer.Create('SDLStreamClose on nil'); - stream.Free; - Result := 1; -end; -// ----------------------------------------------- - -(* - * Creates an SDL_RWops handle from a TStream. - * The stream and RWops must be freed by the user after usage. - * Use SDL_FreeRW(...) to free the RWops data-struct. - *) -function RWopsFromStream(Stream: TStream): PSDL_RWops; -begin - Result := SDL_AllocRW(); - if (Result = nil) then - Exit; - - // set RW-callbacks - with Result^ do - begin - unknown := TUnknown(Stream); - seek := SDLStreamSeek; - read := SDLStreamRead; - write := nil; - close := SDLStreamClose; - type_ := 2; - end; -end; - {$IFDEF FPC} function RandomRange(aMin: integer; aMax: integer): integer; begin @@ -541,59 +434,6 @@ begin {$IFEND} end; -function IsAlphaChar(ch: WideChar): boolean; -begin - // TODO: add chars > 255 when unicode-fonts work? - case ch of - 'A'..'Z', // A-Z - 'a'..'z', // a-z - #170,#181,#186, - #192..#214, - #216..#246, - #248..#255: - Result := true; - else - Result := false; - end; -end; - -function IsNumericChar(ch: WideChar): boolean; -begin - case ch of - '0'..'9': - Result := true; - else - Result := false; - end; -end; - -function IsAlphaNumericChar(ch: WideChar): boolean; -begin - Result := (IsAlphaChar(ch) or IsNumericChar(ch)); -end; - -function IsPunctuationChar(ch: WideChar): boolean; -begin - // TODO: add chars outside of Latin1 basic (0..127)? - case ch of - ' '..'/',':'..'@','['..'`','{'..'~': - Result := true; - else - Result := false; - end; -end; - -function IsControlChar(ch: WideChar): boolean; -begin - case ch of - #0..#31, - #127..#159: - Result := true; - else - Result := false; - end; -end; - (* * Recursive part of the MergeSort algorithm. * OutList will be either InList or TempList and will be swapped in each @@ -677,6 +517,28 @@ begin TempList.Free; end; +(** + * Returns the index of Value in SearchArray + * or -1 if Value is not in SearchArray. + *) +function GetArrayIndex(const SearchArray: array of UTF8String; Value: string; + CaseInsensitiv: boolean = false): integer; +var + i: integer; +begin + Result := -1; + + for i := 0 to High(SearchArray) do + begin + if (SearchArray[i] = Value) or + (CaseInsensitiv and (CompareText(SearchArray[i], Value) = 0)) then + begin + Result := i; + Break; + end; + end; +end; + type // stores the unaligned pointer of data allocated by GetAlignedMem() -- cgit v1.2.3