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-rw-r--r--src/lib/TntUnicodeControls/TntFormatStrUtils.pas1042
1 files changed, 521 insertions, 521 deletions
diff --git a/src/lib/TntUnicodeControls/TntFormatStrUtils.pas b/src/lib/TntUnicodeControls/TntFormatStrUtils.pas
index c6b65082..80aefd4a 100644
--- a/src/lib/TntUnicodeControls/TntFormatStrUtils.pas
+++ b/src/lib/TntUnicodeControls/TntFormatStrUtils.pas
@@ -1,521 +1,521 @@
-
-{*****************************************************************************}
-{ }
-{ Tnt Delphi Unicode Controls }
-{ http://www.tntware.com/delphicontrols/unicode/ }
-{ Version: 2.3.0 }
-{ }
-{ Copyright (c) 2002-2007, Troy Wolbrink (troy.wolbrink@tntware.com) }
-{ }
-{*****************************************************************************}
-
-unit TntFormatStrUtils;
-
-{$IFDEF FPC}
- {$MODE Delphi}
-{$ENDIF}
-
-{$INCLUDE TntCompilers.inc}
-
-interface
-
-// this unit provides functions to work with format strings
-
-uses
- TntSysUtils;
-
-function GetCanonicalFormatStr(const _FormatString: WideString): WideString;
-
-{$IFNDEF FPC}
-{$IFNDEF COMPILER_9_UP}
-function ReplaceFloatingArgumentsInFormatString(const _FormatString: WideString;
- const Args: array of const
- {$IFDEF COMPILER_7_UP}; FormatSettings: PFormatSettings{$ENDIF}): WideString;
-{$ENDIF}
-{$ENDIF}
-procedure CompareFormatStrings(FormatStr1, FormatStr2: WideString);
-function FormatStringsAreCompatible(FormatStr1, FormatStr2: WideString): Boolean;
-
-type
- EFormatSpecError = class(ETntGeneralError);
-
-implementation
-
-uses
- SysUtils, Math, TntClasses;
-
-resourcestring
- SInvalidFormatSpecifier = 'Invalid Format Specifier: %s';
- SMismatchedArgumentTypes = 'Argument types for index %d do not match. (%s <> %s)';
- SMismatchedArgumentCounts = 'Number of format specifiers do not match.';
-
-type
- TFormatSpecifierType = (fstInteger, fstFloating, fstPointer, fstString);
-
-function GetFormatSpecifierType(const FormatSpecifier: WideString): TFormatSpecifierType;
-var
- LastChar: WideChar;
-begin
- LastChar := TntWideLastChar(FormatSpecifier);
- case LastChar of
- 'd', 'D', 'u', 'U', 'x', 'X':
- result := fstInteger;
- 'e', 'E', 'f', 'F', 'g', 'G', 'n', 'N', 'm', 'M':
- result := fstFloating;
- 'p', 'P':
- result := fstPointer;
- 's', 'S':
- result := fstString
- else
- raise ETntInternalError.CreateFmt('Internal Error: Unexpected format type (%s)', [LastChar]);
- end;
-end;
-
-type
- TFormatStrParser = class(TObject)
- private
- ParsedString: TBufferedWideString;
- PFormatString: PWideChar;
- LastIndex: Integer;
- ExplicitCount: Integer;
- ImplicitCount: Integer;
- procedure RaiseInvalidFormatSpecifier;
- function ParseChar(c: WideChar): Boolean;
- procedure ForceParseChar(c: WideChar);
- function ParseDigit: Boolean;
- function ParseInteger: Boolean;
- procedure ForceParseType;
- function PeekDigit: Boolean;
- function PeekIndexSpecifier(out Index: Integer): Boolean;
- public
- constructor Create(const _FormatString: WideString);
- destructor Destroy; override;
- function ParseFormatSpecifier: Boolean;
- end;
-
-constructor TFormatStrParser.Create(const _FormatString: WideString);
-begin
- inherited Create;
- PFormatString := PWideChar(_FormatString);
- ExplicitCount := 0;
- ImplicitCount := 0;
- LastIndex := -1;
- ParsedString := TBufferedWideString.Create;
-end;
-
-destructor TFormatStrParser.Destroy;
-begin
- FreeAndNil(ParsedString);
- inherited;
-end;
-
-procedure TFormatStrParser.RaiseInvalidFormatSpecifier;
-begin
- raise EFormatSpecError.CreateFmt(SInvalidFormatSpecifier, [ParsedString.Value + PFormatString]);
-end;
-
-function TFormatStrParser.ParseChar(c: WideChar): Boolean;
-begin
- result := False;
- if PFormatString^ = c then begin
- result := True;
- ParsedString.AddChar(c);
- Inc(PFormatString);
- end;
-end;
-
-procedure TFormatStrParser.ForceParseChar(c: WideChar);
-begin
- if not ParseChar(c) then
- RaiseInvalidFormatSpecifier;
-end;
-
-function TFormatStrParser.PeekDigit: Boolean;
-begin
- result := False;
- if (PFormatString^ <> #0)
- and (PFormatString^ >= '0')
- and (PFormatString^ <= '9') then
- result := True;
-end;
-
-function TFormatStrParser.ParseDigit: Boolean;
-begin
- result := False;
- if PeekDigit then begin
- result := True;
- ForceParseChar(PFormatString^);
- end;
-end;
-
-function TFormatStrParser.ParseInteger: Boolean;
-const
- MAX_INT_DIGITS = 6;
-var
- digitcount: integer;
-begin
- digitcount := 0;
- While ParseDigit do begin
- inc(digitcount);
- end;
- result := (digitcount > 0);
- if digitcount > MAX_INT_DIGITS then
- RaiseInvalidFormatSpecifier;
-end;
-
-procedure TFormatStrParser.ForceParseType;
-begin
- if PFormatString^ = #0 then
- RaiseInvalidFormatSpecifier;
-
- case PFormatString^ of
- 'd', 'u', 'x', 'e', 'f', 'g', 'n', 'm', 'p', 's',
- 'D', 'U', 'X', 'E', 'F', 'G', 'N', 'M', 'P', 'S':
- begin
- // do nothing
- end
- else
- RaiseInvalidFormatSpecifier;
- end;
- ForceParseChar(PFormatString^);
-end;
-
-function TFormatStrParser.PeekIndexSpecifier(out Index: Integer): Boolean;
-var
- SaveParsedString: WideString;
- SaveFormatString: PWideChar;
-begin
- SaveParsedString := ParsedString.Value;
- SaveFormatString := PFormatString;
- try
- ParsedString.Clear;
- Result := False;
- Index := -1;
- if ParseInteger then begin
- Index := StrToInt(ParsedString.Value);
- if ParseChar(':') then
- Result := True;
- end;
- finally
- ParsedString.Clear;
- ParsedString.AddString(SaveParsedString);
- PFormatString := SaveFormatString;
- end;
-end;
-
-function TFormatStrParser.ParseFormatSpecifier: Boolean;
-var
- ExplicitIndex: Integer;
-begin
- Result := False;
- // Parse entire format specifier
- ForceParseChar('%');
- if (PFormatString^ <> #0)
- and (not ParseChar(' '))
- and (not ParseChar('%')) then begin
- if PeekIndexSpecifier(ExplicitIndex) then begin
- Inc(ExplicitCount);
- LastIndex := Max(LastIndex, ExplicitIndex);
- end else begin
- Inc(ImplicitCount);
- Inc(LastIndex);
- ParsedString.AddString(IntToStr(LastIndex));
- ParsedString.AddChar(':');
- end;
- if ParseChar('*') then
- begin
- Inc(ImplicitCount);
- Inc(LastIndex);
- ParseChar(':');
- end else if ParseInteger then
- ParseChar(':');
- ParseChar('-');
- if ParseChar('*') then begin
- Inc(ImplicitCount);
- Inc(LastIndex);
- end else
- ParseInteger;
- if ParseChar('.') then begin
- if not ParseChar('*') then
- ParseInteger;
- end;
- ForceParseType;
- Result := True;
- end;
-end;
-
-//-----------------------------------
-
-function GetCanonicalFormatStr(const _FormatString: WideString): WideString;
-var
- PosSpec: Integer;
-begin
- with TFormatStrParser.Create(_FormatString) do
- try
- // loop until no more '%'
- PosSpec := Pos('%', PFormatString);
- While PosSpec <> 0 do begin
- try
- // delete everything up until '%'
- ParsedString.AddBuffer(PFormatString, PosSpec - 1);
- Inc(PFormatString, PosSpec - 1);
- // parse format specifier
- ParseFormatSpecifier;
- finally
- PosSpec := Pos('%', PFormatString);
- end;
- end;
- if ((ExplicitCount = 0) and (ImplicitCount = 1)) {simple expression}
- or ((ExplicitCount > 0) and (ImplicitCount = 0)) {nothing converted} then
- result := _FormatString {original}
- else
- result := ParsedString.Value + PFormatString;
- finally
- Free;
- end;
-end;
-
-{$IFNDEF FPC}
-{$IFNDEF COMPILER_9_UP}
-function ReplaceFloatingArgumentsInFormatString(const _FormatString: WideString;
- const Args: array of const
- {$IFDEF COMPILER_7_UP}; FormatSettings: PFormatSettings{$ENDIF}): WideString;
-{ This function replaces floating point format specifiers with their actual formatted values.
- It also adds index specifiers so that the other format specifiers don't lose their place.
- The reason for this is that WideFormat doesn't correctly format floating point specifiers.
- See QC#4254. }
-var
- Parser: TFormatStrParser;
- PosSpec: Integer;
- Output: TBufferedWideString;
-begin
- Output := TBufferedWideString.Create;
- try
- Parser := TFormatStrParser.Create(_FormatString);
- with Parser do
- try
- // loop until no more '%'
- PosSpec := Pos('%', PFormatString);
- While PosSpec <> 0 do begin
- try
- // delete everything up until '%'
- Output.AddBuffer(PFormatString, PosSpec - 1);
- Inc(PFormatString, PosSpec - 1);
- // parse format specifier
- ParsedString.Clear;
- if (not ParseFormatSpecifier)
- or (GetFormatSpecifierType(ParsedString.Value) <> fstFloating) then
- Output.AddBuffer(ParsedString.BuffPtr, MaxInt)
- {$IFDEF COMPILER_7_UP}
- else if Assigned(FormatSettings) then
- Output.AddString(Format{TNT-ALLOW Format}(ParsedString.Value, Args, FormatSettings^))
- {$ENDIF}
- else
- Output.AddString(Format{TNT-ALLOW Format}(ParsedString.Value, Args));
- finally
- PosSpec := Pos('%', PFormatString);
- end;
- end;
- Output.AddString(PFormatString);
- finally
- Free;
- end;
- Result := Output.Value;
- finally
- Output.Free;
- end;
-end;
-{$ENDIF}
-{$ENDIF}
-
-procedure GetFormatArgs(const _FormatString: WideString; FormatArgs: TTntStrings);
-var
- PosSpec: Integer;
-begin
- with TFormatStrParser.Create(_FormatString) do
- try
- FormatArgs.Clear;
- // loop until no more '%'
- PosSpec := Pos('%', PFormatString);
- While PosSpec <> 0 do begin
- try
- // delete everything up until '%'
- Inc(PFormatString, PosSpec - 1);
- // add format specifier to list
- ParsedString.Clear;
- if ParseFormatSpecifier then
- FormatArgs.Add(ParsedString.Value);
- finally
- PosSpec := Pos('%', PFormatString);
- end;
- end;
- finally
- Free;
- end;
-end;
-
-function GetExplicitIndex(const FormatSpecifier: WideString): Integer;
-var
- IndexStr: WideString;
- PosColon: Integer;
-begin
- result := -1;
- PosColon := Pos(':', FormatSpecifier);
- if PosColon <> 0 then begin
- IndexStr := Copy(FormatSpecifier, 2, PosColon - 2);
- result := StrToInt(IndexStr);
- end;
-end;
-
-function GetMaxIndex(FormatArgs: TTntStrings): Integer;
-var
- i: integer;
- RunningIndex: Integer;
- ExplicitIndex: Integer;
-begin
- result := -1;
- RunningIndex := -1;
- for i := 0 to FormatArgs.Count - 1 do begin
- ExplicitIndex := GetExplicitIndex(FormatArgs[i]);
- if ExplicitIndex <> -1 then
- RunningIndex := ExplicitIndex
- else
- inc(RunningIndex);
- result := Max(result, RunningIndex);
- end;
-end;
-
-function FormatSpecToObject(SpecType: TFormatSpecifierType): TObject;
-begin
- {$IFNDEF FPC}
- Result := TObject(SpecType);
- {$ELSE}
- Result := Pointer(SpecType);
- {$ENDIF}
-end;
-
-procedure UpdateTypeList(FormatArgs, TypeList: TTntStrings);
-var
- i: integer;
- f: WideString;
- SpecType: TFormatSpecifierType;
- ExplicitIndex: Integer;
- MaxIndex: Integer;
- RunningIndex: Integer;
-begin
- // set count of TypeList to accomodate maximum index
- MaxIndex := GetMaxIndex(FormatArgs);
- TypeList.Clear;
- for i := 0 to MaxIndex do
- TypeList.Add('');
-
- // for each arg...
- RunningIndex := -1;
- for i := 0 to FormatArgs.Count - 1 do begin
- f := FormatArgs[i];
- ExplicitIndex := GetExplicitIndex(f);
- SpecType := GetFormatSpecifierType(f);
-
- // determine running arg index
- if ExplicitIndex <> -1 then
- RunningIndex := ExplicitIndex
- else
- inc(RunningIndex);
-
- if TypeList[RunningIndex] <> '' then begin
- // already exists in list, check for compatibility
- if TypeList.Objects[RunningIndex] <> FormatSpecToObject(SpecType) then
- raise EFormatSpecError.CreateFmt(SMismatchedArgumentTypes,
- [RunningIndex, TypeList[RunningIndex], f]);
- end else begin
- // not in list so update it
- TypeList[RunningIndex] := f;
- TypeList.Objects[RunningIndex] := FormatSpecToObject(SpecType);
- end;
- end;
-end;
-
-procedure CompareFormatStrings(FormatStr1, FormatStr2: WideString);
-var
- ArgList1: TTntStringList;
- ArgList2: TTntStringList;
- TypeList1: TTntStringList;
- TypeList2: TTntStringList;
- i: integer;
-begin
- ArgList1 := nil;
- ArgList2 := nil;
- TypeList1 := nil;
- TypeList2 := nil;
- try
- ArgList1 := TTntStringList.Create;
- ArgList2 := TTntStringList.Create;
- TypeList1 := TTntStringList.Create;
- TypeList2 := TTntStringList.Create;
-
- GetFormatArgs(FormatStr1, ArgList1);
- UpdateTypeList(ArgList1, TypeList1);
-
- GetFormatArgs(FormatStr2, ArgList2);
- UpdateTypeList(ArgList2, TypeList2);
-
- if TypeList1.Count <> TypeList2.Count then
- raise EFormatSpecError.Create(SMismatchedArgumentCounts + CRLF + CRLF + '> ' + FormatStr1 + CRLF + '> ' + FormatStr2);
-
- for i := 0 to TypeList1.Count - 1 do begin
- if TypeList1.Objects[i] <> TypeList2.Objects[i] then begin
- raise EFormatSpecError.CreateFmt(SMismatchedArgumentTypes,
- [i, TypeList1[i], TypeList2[i]]);
- end;
- end;
-
- finally
- ArgList1.Free;
- ArgList2.Free;
- TypeList1.Free;
- TypeList2.Free;
- end;
-end;
-
-function FormatStringsAreCompatible(FormatStr1, FormatStr2: WideString): Boolean;
-var
- ArgList1: TTntStringList;
- ArgList2: TTntStringList;
- TypeList1: TTntStringList;
- TypeList2: TTntStringList;
- i: integer;
-begin
- ArgList1 := nil;
- ArgList2 := nil;
- TypeList1 := nil;
- TypeList2 := nil;
- try
- ArgList1 := TTntStringList.Create;
- ArgList2 := TTntStringList.Create;
- TypeList1 := TTntStringList.Create;
- TypeList2 := TTntStringList.Create;
-
- GetFormatArgs(FormatStr1, ArgList1);
- UpdateTypeList(ArgList1, TypeList1);
-
- GetFormatArgs(FormatStr2, ArgList2);
- UpdateTypeList(ArgList2, TypeList2);
-
- Result := (TypeList1.Count = TypeList2.Count);
- if Result then begin
- for i := 0 to TypeList1.Count - 1 do begin
- if TypeList1.Objects[i] <> TypeList2.Objects[i] then begin
- Result := False;
- break;
- end;
- end;
- end;
- finally
- ArgList1.Free;
- ArgList2.Free;
- TypeList1.Free;
- TypeList2.Free;
- end;
-end;
-
-end.
+
+{*****************************************************************************}
+{ }
+{ Tnt Delphi Unicode Controls }
+{ http://www.tntware.com/delphicontrols/unicode/ }
+{ Version: 2.3.0 }
+{ }
+{ Copyright (c) 2002-2007, Troy Wolbrink (troy.wolbrink@tntware.com) }
+{ }
+{*****************************************************************************}
+
+unit TntFormatStrUtils;
+
+{$IFDEF FPC}
+ {$MODE Delphi}
+{$ENDIF}
+
+{$INCLUDE TntCompilers.inc}
+
+interface
+
+// this unit provides functions to work with format strings
+
+uses
+ TntSysUtils;
+
+function GetCanonicalFormatStr(const _FormatString: WideString): WideString;
+
+{$IFNDEF FPC}
+{$IFNDEF COMPILER_9_UP}
+function ReplaceFloatingArgumentsInFormatString(const _FormatString: WideString;
+ const Args: array of const
+ {$IFDEF COMPILER_7_UP}; FormatSettings: PFormatSettings{$ENDIF}): WideString;
+{$ENDIF}
+{$ENDIF}
+procedure CompareFormatStrings(FormatStr1, FormatStr2: WideString);
+function FormatStringsAreCompatible(FormatStr1, FormatStr2: WideString): Boolean;
+
+type
+ EFormatSpecError = class(ETntGeneralError);
+
+implementation
+
+uses
+ SysUtils, Math, TntClasses;
+
+resourcestring
+ SInvalidFormatSpecifier = 'Invalid Format Specifier: %s';
+ SMismatchedArgumentTypes = 'Argument types for index %d do not match. (%s <> %s)';
+ SMismatchedArgumentCounts = 'Number of format specifiers do not match.';
+
+type
+ TFormatSpecifierType = (fstInteger, fstFloating, fstPointer, fstString);
+
+function GetFormatSpecifierType(const FormatSpecifier: WideString): TFormatSpecifierType;
+var
+ LastChar: WideChar;
+begin
+ LastChar := TntWideLastChar(FormatSpecifier);
+ case LastChar of
+ 'd', 'D', 'u', 'U', 'x', 'X':
+ result := fstInteger;
+ 'e', 'E', 'f', 'F', 'g', 'G', 'n', 'N', 'm', 'M':
+ result := fstFloating;
+ 'p', 'P':
+ result := fstPointer;
+ 's', 'S':
+ result := fstString
+ else
+ raise ETntInternalError.CreateFmt('Internal Error: Unexpected format type (%s)', [LastChar]);
+ end;
+end;
+
+type
+ TFormatStrParser = class(TObject)
+ private
+ ParsedString: TBufferedWideString;
+ PFormatString: PWideChar;
+ LastIndex: Integer;
+ ExplicitCount: Integer;
+ ImplicitCount: Integer;
+ procedure RaiseInvalidFormatSpecifier;
+ function ParseChar(c: WideChar): Boolean;
+ procedure ForceParseChar(c: WideChar);
+ function ParseDigit: Boolean;
+ function ParseInteger: Boolean;
+ procedure ForceParseType;
+ function PeekDigit: Boolean;
+ function PeekIndexSpecifier(out Index: Integer): Boolean;
+ public
+ constructor Create(const _FormatString: WideString);
+ destructor Destroy; override;
+ function ParseFormatSpecifier: Boolean;
+ end;
+
+constructor TFormatStrParser.Create(const _FormatString: WideString);
+begin
+ inherited Create;
+ PFormatString := PWideChar(_FormatString);
+ ExplicitCount := 0;
+ ImplicitCount := 0;
+ LastIndex := -1;
+ ParsedString := TBufferedWideString.Create;
+end;
+
+destructor TFormatStrParser.Destroy;
+begin
+ FreeAndNil(ParsedString);
+ inherited;
+end;
+
+procedure TFormatStrParser.RaiseInvalidFormatSpecifier;
+begin
+ raise EFormatSpecError.CreateFmt(SInvalidFormatSpecifier, [ParsedString.Value + PFormatString]);
+end;
+
+function TFormatStrParser.ParseChar(c: WideChar): Boolean;
+begin
+ result := False;
+ if PFormatString^ = c then begin
+ result := True;
+ ParsedString.AddChar(c);
+ Inc(PFormatString);
+ end;
+end;
+
+procedure TFormatStrParser.ForceParseChar(c: WideChar);
+begin
+ if not ParseChar(c) then
+ RaiseInvalidFormatSpecifier;
+end;
+
+function TFormatStrParser.PeekDigit: Boolean;
+begin
+ result := False;
+ if (PFormatString^ <> #0)
+ and (PFormatString^ >= '0')
+ and (PFormatString^ <= '9') then
+ result := True;
+end;
+
+function TFormatStrParser.ParseDigit: Boolean;
+begin
+ result := False;
+ if PeekDigit then begin
+ result := True;
+ ForceParseChar(PFormatString^);
+ end;
+end;
+
+function TFormatStrParser.ParseInteger: Boolean;
+const
+ MAX_INT_DIGITS = 6;
+var
+ digitcount: integer;
+begin
+ digitcount := 0;
+ While ParseDigit do begin
+ inc(digitcount);
+ end;
+ result := (digitcount > 0);
+ if digitcount > MAX_INT_DIGITS then
+ RaiseInvalidFormatSpecifier;
+end;
+
+procedure TFormatStrParser.ForceParseType;
+begin
+ if PFormatString^ = #0 then
+ RaiseInvalidFormatSpecifier;
+
+ case PFormatString^ of
+ 'd', 'u', 'x', 'e', 'f', 'g', 'n', 'm', 'p', 's',
+ 'D', 'U', 'X', 'E', 'F', 'G', 'N', 'M', 'P', 'S':
+ begin
+ // do nothing
+ end
+ else
+ RaiseInvalidFormatSpecifier;
+ end;
+ ForceParseChar(PFormatString^);
+end;
+
+function TFormatStrParser.PeekIndexSpecifier(out Index: Integer): Boolean;
+var
+ SaveParsedString: WideString;
+ SaveFormatString: PWideChar;
+begin
+ SaveParsedString := ParsedString.Value;
+ SaveFormatString := PFormatString;
+ try
+ ParsedString.Clear;
+ Result := False;
+ Index := -1;
+ if ParseInteger then begin
+ Index := StrToInt(ParsedString.Value);
+ if ParseChar(':') then
+ Result := True;
+ end;
+ finally
+ ParsedString.Clear;
+ ParsedString.AddString(SaveParsedString);
+ PFormatString := SaveFormatString;
+ end;
+end;
+
+function TFormatStrParser.ParseFormatSpecifier: Boolean;
+var
+ ExplicitIndex: Integer;
+begin
+ Result := False;
+ // Parse entire format specifier
+ ForceParseChar('%');
+ if (PFormatString^ <> #0)
+ and (not ParseChar(' '))
+ and (not ParseChar('%')) then begin
+ if PeekIndexSpecifier(ExplicitIndex) then begin
+ Inc(ExplicitCount);
+ LastIndex := Max(LastIndex, ExplicitIndex);
+ end else begin
+ Inc(ImplicitCount);
+ Inc(LastIndex);
+ ParsedString.AddString(IntToStr(LastIndex));
+ ParsedString.AddChar(':');
+ end;
+ if ParseChar('*') then
+ begin
+ Inc(ImplicitCount);
+ Inc(LastIndex);
+ ParseChar(':');
+ end else if ParseInteger then
+ ParseChar(':');
+ ParseChar('-');
+ if ParseChar('*') then begin
+ Inc(ImplicitCount);
+ Inc(LastIndex);
+ end else
+ ParseInteger;
+ if ParseChar('.') then begin
+ if not ParseChar('*') then
+ ParseInteger;
+ end;
+ ForceParseType;
+ Result := True;
+ end;
+end;
+
+//-----------------------------------
+
+function GetCanonicalFormatStr(const _FormatString: WideString): WideString;
+var
+ PosSpec: Integer;
+begin
+ with TFormatStrParser.Create(_FormatString) do
+ try
+ // loop until no more '%'
+ PosSpec := Pos(WideString('%'), PFormatString);
+ While PosSpec <> 0 do begin
+ try
+ // delete everything up until '%'
+ ParsedString.AddBuffer(PFormatString, PosSpec - 1);
+ Inc(PFormatString, PosSpec - 1);
+ // parse format specifier
+ ParseFormatSpecifier;
+ finally
+ PosSpec := Pos(WideString('%'), PFormatString);
+ end;
+ end;
+ if ((ExplicitCount = 0) and (ImplicitCount = 1)) {simple expression}
+ or ((ExplicitCount > 0) and (ImplicitCount = 0)) {nothing converted} then
+ result := _FormatString {original}
+ else
+ result := ParsedString.Value + PFormatString;
+ finally
+ Free;
+ end;
+end;
+
+{$IFNDEF FPC}
+{$IFNDEF COMPILER_9_UP}
+function ReplaceFloatingArgumentsInFormatString(const _FormatString: WideString;
+ const Args: array of const
+ {$IFDEF COMPILER_7_UP}; FormatSettings: PFormatSettings{$ENDIF}): WideString;
+{ This function replaces floating point format specifiers with their actual formatted values.
+ It also adds index specifiers so that the other format specifiers don't lose their place.
+ The reason for this is that WideFormat doesn't correctly format floating point specifiers.
+ See QC#4254. }
+var
+ Parser: TFormatStrParser;
+ PosSpec: Integer;
+ Output: TBufferedWideString;
+begin
+ Output := TBufferedWideString.Create;
+ try
+ Parser := TFormatStrParser.Create(_FormatString);
+ with Parser do
+ try
+ // loop until no more '%'
+ PosSpec := Pos('%', PFormatString);
+ While PosSpec <> 0 do begin
+ try
+ // delete everything up until '%'
+ Output.AddBuffer(PFormatString, PosSpec - 1);
+ Inc(PFormatString, PosSpec - 1);
+ // parse format specifier
+ ParsedString.Clear;
+ if (not ParseFormatSpecifier)
+ or (GetFormatSpecifierType(ParsedString.Value) <> fstFloating) then
+ Output.AddBuffer(ParsedString.BuffPtr, MaxInt)
+ {$IFDEF COMPILER_7_UP}
+ else if Assigned(FormatSettings) then
+ Output.AddString(Format{TNT-ALLOW Format}(ParsedString.Value, Args, FormatSettings^))
+ {$ENDIF}
+ else
+ Output.AddString(Format{TNT-ALLOW Format}(ParsedString.Value, Args));
+ finally
+ PosSpec := Pos('%', PFormatString);
+ end;
+ end;
+ Output.AddString(PFormatString);
+ finally
+ Free;
+ end;
+ Result := Output.Value;
+ finally
+ Output.Free;
+ end;
+end;
+{$ENDIF}
+{$ENDIF}
+
+procedure GetFormatArgs(const _FormatString: WideString; FormatArgs: TTntStrings);
+var
+ PosSpec: Integer;
+begin
+ with TFormatStrParser.Create(_FormatString) do
+ try
+ FormatArgs.Clear;
+ // loop until no more '%'
+ PosSpec := Pos(WideString('%'), PFormatString);
+ While PosSpec <> 0 do begin
+ try
+ // delete everything up until '%'
+ Inc(PFormatString, PosSpec - 1);
+ // add format specifier to list
+ ParsedString.Clear;
+ if ParseFormatSpecifier then
+ FormatArgs.Add(ParsedString.Value);
+ finally
+ PosSpec := Pos(WideString('%'), PFormatString);
+ end;
+ end;
+ finally
+ Free;
+ end;
+end;
+
+function GetExplicitIndex(const FormatSpecifier: WideString): Integer;
+var
+ IndexStr: WideString;
+ PosColon: Integer;
+begin
+ result := -1;
+ PosColon := Pos(':', FormatSpecifier);
+ if PosColon <> 0 then begin
+ IndexStr := Copy(FormatSpecifier, 2, PosColon - 2);
+ result := StrToInt(IndexStr);
+ end;
+end;
+
+function GetMaxIndex(FormatArgs: TTntStrings): Integer;
+var
+ i: integer;
+ RunningIndex: Integer;
+ ExplicitIndex: Integer;
+begin
+ result := -1;
+ RunningIndex := -1;
+ for i := 0 to FormatArgs.Count - 1 do begin
+ ExplicitIndex := GetExplicitIndex(FormatArgs[i]);
+ if ExplicitIndex <> -1 then
+ RunningIndex := ExplicitIndex
+ else
+ inc(RunningIndex);
+ result := Max(result, RunningIndex);
+ end;
+end;
+
+function FormatSpecToObject(SpecType: TFormatSpecifierType): TObject;
+begin
+ {$IFNDEF FPC}
+ Result := TObject(SpecType);
+ {$ELSE}
+ Result := Pointer(SpecType);
+ {$ENDIF}
+end;
+
+procedure UpdateTypeList(FormatArgs, TypeList: TTntStrings);
+var
+ i: integer;
+ f: WideString;
+ SpecType: TFormatSpecifierType;
+ ExplicitIndex: Integer;
+ MaxIndex: Integer;
+ RunningIndex: Integer;
+begin
+ // set count of TypeList to accomodate maximum index
+ MaxIndex := GetMaxIndex(FormatArgs);
+ TypeList.Clear;
+ for i := 0 to MaxIndex do
+ TypeList.Add('');
+
+ // for each arg...
+ RunningIndex := -1;
+ for i := 0 to FormatArgs.Count - 1 do begin
+ f := FormatArgs[i];
+ ExplicitIndex := GetExplicitIndex(f);
+ SpecType := GetFormatSpecifierType(f);
+
+ // determine running arg index
+ if ExplicitIndex <> -1 then
+ RunningIndex := ExplicitIndex
+ else
+ inc(RunningIndex);
+
+ if TypeList[RunningIndex] <> '' then begin
+ // already exists in list, check for compatibility
+ if TypeList.Objects[RunningIndex] <> FormatSpecToObject(SpecType) then
+ raise EFormatSpecError.CreateFmt(SMismatchedArgumentTypes,
+ [RunningIndex, TypeList[RunningIndex], f]);
+ end else begin
+ // not in list so update it
+ TypeList[RunningIndex] := f;
+ TypeList.Objects[RunningIndex] := FormatSpecToObject(SpecType);
+ end;
+ end;
+end;
+
+procedure CompareFormatStrings(FormatStr1, FormatStr2: WideString);
+var
+ ArgList1: TTntStringList;
+ ArgList2: TTntStringList;
+ TypeList1: TTntStringList;
+ TypeList2: TTntStringList;
+ i: integer;
+begin
+ ArgList1 := nil;
+ ArgList2 := nil;
+ TypeList1 := nil;
+ TypeList2 := nil;
+ try
+ ArgList1 := TTntStringList.Create;
+ ArgList2 := TTntStringList.Create;
+ TypeList1 := TTntStringList.Create;
+ TypeList2 := TTntStringList.Create;
+
+ GetFormatArgs(FormatStr1, ArgList1);
+ UpdateTypeList(ArgList1, TypeList1);
+
+ GetFormatArgs(FormatStr2, ArgList2);
+ UpdateTypeList(ArgList2, TypeList2);
+
+ if TypeList1.Count <> TypeList2.Count then
+ raise EFormatSpecError.Create(SMismatchedArgumentCounts + CRLF + CRLF + '> ' + FormatStr1 + CRLF + '> ' + FormatStr2);
+
+ for i := 0 to TypeList1.Count - 1 do begin
+ if TypeList1.Objects[i] <> TypeList2.Objects[i] then begin
+ raise EFormatSpecError.CreateFmt(SMismatchedArgumentTypes,
+ [i, TypeList1[i], TypeList2[i]]);
+ end;
+ end;
+
+ finally
+ ArgList1.Free;
+ ArgList2.Free;
+ TypeList1.Free;
+ TypeList2.Free;
+ end;
+end;
+
+function FormatStringsAreCompatible(FormatStr1, FormatStr2: WideString): Boolean;
+var
+ ArgList1: TTntStringList;
+ ArgList2: TTntStringList;
+ TypeList1: TTntStringList;
+ TypeList2: TTntStringList;
+ i: integer;
+begin
+ ArgList1 := nil;
+ ArgList2 := nil;
+ TypeList1 := nil;
+ TypeList2 := nil;
+ try
+ ArgList1 := TTntStringList.Create;
+ ArgList2 := TTntStringList.Create;
+ TypeList1 := TTntStringList.Create;
+ TypeList2 := TTntStringList.Create;
+
+ GetFormatArgs(FormatStr1, ArgList1);
+ UpdateTypeList(ArgList1, TypeList1);
+
+ GetFormatArgs(FormatStr2, ArgList2);
+ UpdateTypeList(ArgList2, TypeList2);
+
+ Result := (TypeList1.Count = TypeList2.Count);
+ if Result then begin
+ for i := 0 to TypeList1.Count - 1 do begin
+ if TypeList1.Objects[i] <> TypeList2.Objects[i] then begin
+ Result := False;
+ break;
+ end;
+ end;
+ end;
+ finally
+ ArgList1.Free;
+ ArgList2.Free;
+ TypeList1.Free;
+ TypeList2.Free;
+ end;
+end;
+
+end.