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-rw-r--r--src/base/UCommon.pas321
1 files changed, 79 insertions, 242 deletions
diff --git a/src/base/UCommon.pas b/src/base/UCommon.pas
index d729b6dd..fa0faf3c 100644
--- a/src/base/UCommon.pas
+++ b/src/base/UCommon.pas
@@ -39,9 +39,28 @@ uses
{$IFDEF MSWINDOWS}
Windows,
{$ENDIF}
- sdl,
UConfig,
- ULog;
+ ULog,
+ UPath;
+
+type
+ TStringDynArray = array of string;
+
+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);
@@ -50,43 +69,19 @@ 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);
@@ -101,8 +96,63 @@ 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
{$IF Defined(Linux) or Defined(FreeBSD)}
@@ -224,39 +274,6 @@ begin
exOverflow, exUnderflow, exPrecision]);
end;
-function StringReplaceW(text: WideString; search, rep: WideChar): WideString;
-var
- iPos: integer;
-// sTemp: WideString;
-begin
-(*
- result := text;
- iPos := Pos(search, result);
- while (iPos > 0) do
- begin
- sTemp := copy(result, iPos + length(search), length(result));
- result := copy(result, 1, iPos - 1) + rep + sTEmp;
- iPos := Pos(search, result);
- end;
-*)
- result := text;
-
- if search = rep then
- exit;
-
- for iPos := 1 to length(result) do
- begin
- if result[iPos] = search then
- result[iPos] := rep;
- end;
-end;
-
-function AdaptFilePaths(const aPath: WideString): WideString;
-begin
- result := StringReplaceW(aPath, '\', PathDelim);//, [rfReplaceAll]);
-end;
-
-
{$IFNDEF MSWINDOWS}
procedure ZeroMemory(Destination: pointer; Length: dword);
begin
@@ -268,135 +285,8 @@ 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;
-
{$IFDEF FPC}
function RandomRange(aMin: integer; aMax: integer): integer;
begin
@@ -541,59 +431,6 @@ begin
{$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
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-29 01:26:54 +0000