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{************************************************************************}
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{ }
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{ Borland Delphi Visual Component Library }
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{ InterBase Express core components }
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{ }
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{ Copyright (c) 1998-2000 Inprise Corporation }
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{ }
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{ InterBase Express is based in part on the product }
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{ Free IB Components, written by Gregory H. Deatz for }
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{ Hoagland, Longo, Moran, Dunst & Doukas Company. }
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{ Free IB Components is used under license. }
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{ }
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{ The contents of this file are subject to the InterBase }
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{ Public License Version 1.0 (the "License"); you may not }
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{ use this file except in compliance with the License. You }
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{ may obtain a copy of the License at http://www.Inprise.com/IPL.html }
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{ Software distributed under the License is distributed on }
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{ an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either }
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{ express or implied. See the License for the specific language }
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{ governing rights and limitations under the License. }
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{ The Original Code was created by InterBase Software Corporation }
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{ and its successors. }
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{ Portions created by Inprise Corporation are Copyright (C) Inprise }
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{ Corporation. All Rights Reserved. }
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{ Contributor(s): Jeff Overcash }
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{ }
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{ IBX For Lazarus (Firebird Express) }
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{ Contributor: Tony Whyman, MWA Software http://www.mwasoftware.co.uk }
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{ Portions created by MWA Software are copyright McCallum Whyman }
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{ Associates Ltd 2011 }
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{ }
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{************************************************************************}
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unit IBUtils;
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{$Mode Delphi}
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interface
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uses
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{$IFDEF WINDOWS }
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Windows,
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{$ELSE}
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unix,
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{$ENDIF}
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Classes, SysUtils;
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const
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CRLF = #13 + #10;
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CR = #13;
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LF = #10;
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TAB = #9;
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NULL_TERMINATOR = #0;
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function Max(n1, n2: Integer): Integer;
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function Min(n1, n2: Integer): Integer;
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function RandomString(iLength: Integer): String;
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function RandomInteger(iLow, iHigh: Integer): Integer;
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function StripString(st: String; CharsToStrip: String): String;
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function FormatIdentifier(Dialect: Integer; Value: String): String;
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function FormatIdentifierValue(Dialect: Integer; Value: String): String;
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function ExtractIdentifier(Dialect: Integer; Value: String): String;
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function QuoteIdentifier(Dialect: Integer; Value: String): String;
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implementation
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function Max(n1, n2: Integer): Integer;
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begin
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if (n1 > n2) then
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result := n1
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else
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result := n2;
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end;
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function Min(n1, n2: Integer): Integer;
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begin
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if (n1 < n2) then
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result := n1
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else
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result := n2;
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end;
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function RandomString(iLength: Integer): String;
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begin
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result := '';
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while Length(result) < iLength do
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result := result + IntToStr(RandomInteger(0, High(Integer)));
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if Length(result) > iLength then
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result := Copy(result, 1, iLength);
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end;
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function RandomInteger(iLow, iHigh: Integer): Integer;
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begin
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result := Trunc(Random(iHigh - iLow)) + iLow;
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end;
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function StripString(st: String; CharsToStrip: String): String;
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var
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i: Integer;
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begin
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result := '';
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for i := 1 to Length(st) do begin
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if AnsiPos(st[i], CharsToStrip) = 0 then
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result := result + st[i];
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end;
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end;
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function FormatIdentifier(Dialect: Integer; Value: String): String;
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begin
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Value := Trim(Value);
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if Dialect = 1 then
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Value := AnsiUpperCase(Value)
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else
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if (Value <> '') and (Value[1] = '"') then
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Value := '"' + StringReplace (TrimRight(Value), '"', '""', [rfReplaceAll]) + '"'
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else
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Value := AnsiUpperCase(Value);
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Result := Value;
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end;
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function FormatIdentifierValue(Dialect: Integer; Value: String): String;
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begin
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Value := Trim(Value);
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if Dialect = 1 then
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Value := AnsiUpperCase(Value)
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else
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begin
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if (Value <> '') and (Value[1] = '"') then
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begin
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Delete(Value, 1, 1);
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Delete(Value, Length(Value), 1);
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Value := StringReplace (Value, '""', '"', [rfReplaceAll]);
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end
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else
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Value := AnsiUpperCase(Value);
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end;
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Result := Value;
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end;
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function ExtractIdentifier(Dialect: Integer; Value: String): String;
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begin
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Value := Trim(Value);
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if Dialect = 1 then
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Value := AnsiUpperCase(Value)
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else
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begin
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if (Value <> '') and (Value[1] = '"') then
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begin
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Delete(Value, 1, 1);
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Delete(Value, Length(Value), 1);
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Value := StringReplace (Value, '""', '"', [rfReplaceAll]);
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end
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else
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Value := AnsiUpperCase(Value);
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end;
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Result := Value;
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end;
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function QuoteIdentifier(Dialect: Integer; Value: String): String;
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begin
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if Dialect = 1 then
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Value := AnsiUpperCase(Trim(Value))
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else
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Value := '"' + Value + '"';
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Result := Value;
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end;
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end.
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