{ ********************************************************************* $Id$ Copyright (C) 1997, 1998 Gertjan Schouten This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. ********************************************************************* System Utilities For Free Pascal } {==============================================================================} { standard functions } {==============================================================================} type PString = ^String; { For FloatToText } TFloatFormat = (ffGeneral, ffExponent, ffFixed, ffNumber, ffCurrency); TFloatValue = (fvExtended, fvCurrency, fvSingle, fvReal, fvDouble, fvComp); TReplaceFlags = set of (rfReplaceAll, rfIgnoreCase); TFloatRec = Record Exponent: Integer; Negative: Boolean; Digits: Array[0..18] Of Char; End; const { For floattodatetime } MinDateTime: TDateTime = -657434.0; { 01/01/0100 12:00:00.000 AM } MaxDateTime: TDateTime = 2958465.99999; { 12/31/9999 11:59:59.999 PM } {$ifndef VER1_0} {$if defined(FPC_HAS_TYPE_EXTENDED) or defined(FPC_HAS_TYPE_FLOAT128)} MinCurrency: Currency = -922337203685477.5807; MaxCurrency: Currency = 922337203685477.5807; {$else} MinCurrency: Currency = -922337203685477.0000; MaxCurrency: Currency = 922337203685477.0000; {$endif} {$endif VER1_0} Type TTextLineBreakStyle = (tlbsLF, tlbsCRLF,tlbsCR); // Must move to system unit, and add Mac tlbsCR too ? Const DefaultTextLineBreakStyle: TTextLineBreakStyle = {$ifdef unix} tlbsLF {$else} {$ifdef macos} tlbsCR {$else} tlbsCRLF {$endif} {$endif} ; Const LeadBytes: set of Char = []; EmptyStr : string = ''; NullStr : PString = @EmptyStr; {$IFDEF VIRTUALPASCAL} EmptyWideStr : AnsiString = ''; NullWideStr : PString = @EmptyWideStr; {$ELSE} EmptyWideStr : WideString = ''; // NullWideStr : PWideString = @EmptyWideStr; {$ENDIF} function NewStr(const S: string): PString; procedure DisposeStr(S: PString); procedure AssignStr(var P: PString; const S: string); procedure AppendStr(var Dest: String; const S: string); function UpperCase(const s: string): string; function LowerCase(const s: string): string; overload; function CompareStr(const S1, S2: string): Integer; function CompareMemRange(P1, P2: Pointer; Length: cardinal): integer; function CompareMem(P1, P2: Pointer; Length: cardinal): Boolean; function CompareText(const S1, S2: string): integer; function SameText(const s1,s2:String):Boolean; function AnsiUpperCase(const s: string): string; function AnsiLowerCase(const s: string): string; function AnsiCompareStr(const S1, S2: string): integer; function AnsiCompareText(const S1, S2: string): integer; function AnsiSameText(const s1,s2:String):Boolean; function AnsiSameStr(const s1,s2:String):Boolean; function AnsiStrComp(S1, S2: PChar): integer; function AnsiStrIComp(S1, S2: PChar): integer; function AnsiStrLComp(S1, S2: PChar; MaxLen: cardinal): integer; function AnsiStrLIComp(S1, S2: PChar; MaxLen: cardinal): integer; function AnsiStrLower(Str: PChar): PChar; function AnsiStrUpper(Str: PChar): PChar; function AnsiLastChar(const S: string): PChar; function AnsiStrLastChar(Str: PChar): PChar; function Trim(const S: string): string; function TrimLeft(const S: string): string; function TrimRight(const S: string): string; function QuotedStr(const S: string): string; function AnsiQuotedStr(const S: string; Quote: char): string; function AnsiExtractQuotedStr(Const Src: PChar; Quote: Char): string; function AdjustLineBreaks(const S: string): string; function AdjustLineBreaks(const S: string; Style: TTextLineBreakStyle): string; function IsValidIdent(const Ident: string): boolean; function IntToStr(Value: integer): string; {$IFNDEF VIRTUALPASCAL} function IntToStr(Value: Int64): string; {$ENDIF} function IntToStr(Value: QWord): string; function IntToHex(Value: integer; Digits: integer): string; function IntToHex(Value: Int64; Digits: integer): string; function StrToInt(const s: string): integer; function TryStrToInt(const s: string; var i : integer) : boolean; {$IFNDEF VIRTUALPASCAL} function StrToInt64(const s: string): int64; function TryStrToInt64(const s: string; var i : int64) : boolean; {$ENDIF} function StrToIntDef(const S: string; Default: integer): integer; {$IFNDEF VIRTUALPASCAL} function StrToInt64Def(const S: string; Default: int64): int64; {$ENDIF} function LoadStr(Ident: integer): string; // function FmtLoadStr(Ident: integer; const Args: array of const): string; Function Format (Const Fmt : String; const Args : Array of const) : String; Function FormatBuf (Var Buffer; BufLen : Cardinal; Const Fmt; fmtLen : Cardinal; Const Args : Array of const) : Cardinal; Function StrFmt(Buffer,Fmt : PChar; Const args: Array of const) : Pchar; Function StrLFmt(Buffer : PCHar; Maxlen : Cardinal;Fmt : PChar; Const args: Array of const) : Pchar; Procedure FmtStr(Var Res: String; Const Fmt : String; Const args: Array of const); Function FloatToStrF(Value: Extended; format: TFloatFormat; Precision, Digits: Integer): String; Function FloatToStr(Value: Extended): String; Function StrToFloat(Const S : String) : Extended; Function StrToFloatDef(Const S: String; Const Default: Extended): Extended; Function TextToFloat(Buffer: PChar; Var Value: Extended): Boolean; Function TextToFloat(Buffer: PChar; Var Value; ValueType: TFloatValue): Boolean; Function FloatToText(Buffer: PChar; Value: Extended; format: TFloatFormat; Precision, Digits: Integer): Longint; Function FloatToDateTime (Const Value : Extended) : TDateTime; Function FloattoCurr (Const Value : Extended) : Currency; function TryFloatToCurr(const Value: Extended; var AResult: Currency): Boolean; Function CurrToStr(Value: Currency): string; function StrToCurr(const S: string): Currency; function StrToCurrDef(const S: string; Default : Currency): Currency; function StrToBool(const S: string): Boolean; function BoolToStr(B: Boolean): string; function LastDelimiter(const Delimiters, S: string): Integer; function StringReplace(const S, OldPattern, NewPattern: string; Flags: TReplaceFlags): string; Function FloatToTextFmt(Buffer: PChar; Value: Extended; format: PChar): Integer; Procedure FloatToDecimal(Var Result: TFloatRec; Value: Extended; Precision, Decimals : integer); Function FormatFloat(Const Format : String; Value : Extended) : String; Function IsDelimiter(const Delimiters, S: string; Index: Integer): Boolean; {// MBCS Functions. No MBCS yet, so mostly these are calls to the regular counterparts.} Type TMbcsByteType = (mbSingleByte, mbLeadByte, mbTrailByte); Function ByteType(const S: string; Index: Integer): TMbcsByteType; Function StrByteType(Str: PChar; Index: Cardinal): TMbcsByteType; Function ByteToCharLen(const S: string; MaxLen: Integer): Integer; Function CharToByteLen(const S: string; MaxLen: Integer): Integer; Function ByteToCharIndex(const S: string; Index: Integer): Integer; const {$ifndef unix} SwitchChars = ['/','-']; {$else} SwitchChars = ['-']; {$endif} Type TSysCharSet = Set of char; Function FindCmdLineSwitch(const Switch: string; const Chars: TSysCharSet;IgnoreCase: Boolean): Boolean; Function FindCmdLineSwitch(const Switch: string; IgnoreCase: Boolean): Boolean; Function FindCmdLineSwitch(const Switch: string): Boolean; {==============================================================================} { extra functions } {==============================================================================} function LeftStr(const S: string; Count: integer): string; function RightStr(const S: string; Count: integer): string; function BCDToInt(Value: integer): integer; { $Log$ Revision 1.9 2004-08-30 13:07:03 michael + Added MACOS linebreakstyle (tlbsCR) Revision 1.8 2004/08/07 16:56:28 florian + TryStrToInt* added Revision 1.7 2004/06/20 20:42:37 florian * fixed bootstrapping problems Revision 1.6 2004/06/13 10:49:50 florian * fixed some bootstrapping problems as well as some 64 bit stuff Revision 1.5 2004/06/12 13:23:17 michael + Fixed currency<->string conversion support Revision 1.4 2004/02/26 08:46:21 michael + Added AnsiSameStr Revision 1.3 2003/11/26 22:17:42 michael + Merged fixbranch fixes, missing in main branch Revision 1.2 2003/10/07 12:02:47 marco * sametext and ansisametext added. (simple (ansi)comparetext wrappers) Revision 1.1 2003/10/06 21:01:06 peter * moved classes unit to rtl Revision 1.17 2003/09/06 21:22:08 marco * More objpas fixes Revision 1.16 2002/12/24 23:33:37 peter * export StrToFloatDef Revision 1.15 2002/12/23 23:12:34 florian + TextToFloat: D6 compatibility added Revision 1.14 2002/11/28 22:26:30 michael + Fixed float<>string conversion routines Revision 1.13 2002/11/28 20:29:26 michael + made it compile again Revision 1.12 2002/09/07 16:01:22 peter * old logs removed and tabs fixed Revision 1.1.2.6 2002/11/28 22:25:01 michael + Fixed float<>string conversion routines Revision 1.1.2.5 2002/11/28 20:24:12 michael + merged some fixes from mainbranch Revision 1.1.2.4 2002/10/29 23:41:06 michael + Added lots of D4 functions Revision 1.11 2002/01/24 18:33:58 peter * overload for lowercase() Revision 1.10 2002/01/24 12:33:54 jonas * adapted ranges of native types to int64 (e.g. high cardinal is no longer longint($ffffffff), but just $fffffff in psystem) * small additional fix in 64bit rangecheck code generation for 32 bit processors * adaption of ranges required the matching talgorithm used for selecting which overloaded procedure to call to be adapted. It should now always select the closest match for ordinal parameters. + inttostr(qword) in sysstr.inc/sysstrh.inc + abs(int64), sqr(int64), sqr(qword) in systemh.inc/generic.inc (previous fixes were required to be able to add them) * is_in_limit() moved from ncal to types unit, should always be used instead of direct comparisons of low/high values of orddefs because qword is a special case }