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https://gitlab.com/freepascal.org/lazarus/lazarus.git
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119 lines
3.0 KiB
ObjectPascal
119 lines
3.0 KiB
ObjectPascal
{ Copyright (C) 2004
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*****************************************************************************
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See the file COPYING.modifiedLGPL.txt, included in this distribution,
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for details about the license.
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*****************************************************************************
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Abstract:
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Interface to the IDE macros.
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}
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unit MacroIntf;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils, LazFileUtils, MacroDefIntf;
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type
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{ TIDEMacros - macros for paths and compiler settings }
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TIDEMacros = class
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protected
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FBaseTimeStamp: integer;
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FGraphTimeStamp: integer;
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public
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property BaseTimeStamp: integer read FBaseTimeStamp;
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property GraphTimeStamp: integer read FGraphTimeStamp;
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procedure IncreaseBaseStamp;
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procedure IncreaseGraphStamp;
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function StrHasMacros(const s: string): boolean; virtual; abstract;
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function SubstituteMacros(var s: string): boolean; virtual; abstract;
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function IsMacro(const Name: string): boolean; virtual; abstract;
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// file utility functions
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function CreateAbsoluteSearchPath(var SearchPath: string;
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const BaseDirectory: string): boolean;
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procedure Add(NewMacro: TTransferMacro); virtual; abstract;
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end;
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var
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// the global IDE values
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IDEMacros: TIDEMacros = nil; // set by the IDE
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procedure RenameIDEMacroInString(var s: string; const OldName, NewName: string);
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implementation
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const
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MaxStamp = $7fffffff;
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MinStamp = -$7fffffff;
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procedure RenameIDEMacroInString(var s: string; const OldName, NewName: string);
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var
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p: Integer;
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Macro1: String;
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Macro2: String;
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procedure Replace(const OldValue, NewValue: string);
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begin
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s:=copy(s,1,p-1)+NewValue+copy(s,p+length(OldValue),length(s));
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inc(p,length(NewValue));
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end;
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begin
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Macro1:='$('+OldName+')';
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Macro2:='$'+OldName+'(';
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p:=1;
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while (p<length(s)) do
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begin
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if (s[p]<>'$') then
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inc(p) // skip normal character
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else if (s[p+1]='$') then
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inc(p,2) // skip $$
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else begin
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// macro at p found
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if SysUtils.CompareText(Macro1,copy(s,p,length(Macro1)))=0 then
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Replace(Macro1,'$('+NewName+')')
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else if SysUtils.CompareText(Macro2,copy(s,p,length(Macro1)))=0 then
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Replace(Macro2,'$'+NewName+'(')
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else
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inc(p);
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end;
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end;
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end;
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{ TIDEMacros }
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procedure TIDEMacros.IncreaseBaseStamp;
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begin
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if FBaseTimeStamp<MaxStamp then
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inc(FBaseTimeStamp)
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else
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FBaseTimeStamp:=MinStamp;
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end;
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procedure TIDEMacros.IncreaseGraphStamp;
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begin
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if FGraphTimeStamp<MaxStamp then
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inc(FGraphTimeStamp)
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else
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FGraphTimeStamp:=MinStamp;
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end;
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function TIDEMacros.CreateAbsoluteSearchPath(var SearchPath: string;
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const BaseDirectory: string): boolean;
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var
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BaseDir: String;
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begin
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if SearchPath='' then exit(true);
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BaseDir:=BaseDirectory;
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if not SubstituteMacros(BaseDir) then exit(false);
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Result:=SubstituteMacros(SearchPath);
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SearchPath:=MinimizeSearchPath(LazFileUtils.CreateAbsoluteSearchPath(SearchPath,BaseDir));
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end;
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end.
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