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unit AuxFuncsLibMapper;
interface
uses
SysUtils,
RegExpr,
Classes,
IniFiles,
StrUtils;
function LoadTextFromFile(filename: string): string;
procedure RemoveTrailingLineWrap(var s: string; keyword: string);
function Get_Ini_Section(file_name, section: string): string;
function GetDatatypeDefinitionFromFile(filename: string;
NestedStructsPointers: TStringList): string;
implementation
function LoadTextFromFile(filename: string): string;
var Stream: TStream;
Size: Integer;
S: string;
begin
if(FileExists(filename))then
begin
Stream := TFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);
try
Size := Stream.Size - Stream.Position;
SetString(S, nil, Size);
Stream.Read(Pointer(S)^, Size);
finally
Stream.Free;
end;
end
else
begin
S:='';
WriteLn('ERROR: ['+filename+'] not found.');
ExitCode:=1;
end;
LoadTextFromFile:=S;
end;
procedure RemoveTrailingLineWrap(var s: string; keyword: string);
begin
while(Pos(keyword+#13#10, s)>0)do
s:=Copy(s, 1, Pos(keyword+#13#10, s)+Length(keyword)-1)+
Copy(s, Pos(keyword+#13#10, s)+Length(keyword)+2, Length(s));
end;
function Get_Ini_Section(file_name, section: string): string;
var DatatypeMappingIni: TMemIniFile;
theValues: TStringList;
begin
Result:='';
DatatypeMappingIni:=TMemIniFile.Create(file_name);
theValues:=TStringList.Create;
try
DatatypeMappingIni.ReadSectionValues(section,
theValues);
Result:=theValues.Text;
finally
DatatypeMappingIni.Free;
theValues.Free;
end;
end;
function GetDatatypeDefinitionFromFile(filename: string;
NestedStructsPointers: TStringList): string;
var Source, SourceNoComments: string;
RegExpr, Enums, Structs: TRegExpr;
DatatypeMapping: TStringList;
begin
DatatypeMapping:=TStringList.Create;
RegExpr:=TRegExpr.Create;
Enums:=TRegExpr.Create;
Structs:=TRegExpr.Create;
try
Source:=LoadTextFromFile(filename);
//-------------------------------------------------------------
//Remove comments from file
RegExpr.Expression:='(?img)(/\*([\w\s=\,\(\)\;/\\\.\-\''\?\:\*\<\>\#\!]+?)\*/)|'+
'(//([\w\t \=\,\(\)\;/\\\.\-\''\?\:\*\<\>\#\!]+))';
SourceNoComments:=RegExpr.Replace(Source, '', True);
//-------------------------------------------------------------
//Scan through file
Enums.Expression:='(?img)(typedef enum|^enum)\s{0,}(\w+){0,}\s{0,}\{'+
'([a-zA-Z0-9_\s=\,]+)\}\s*(\w*)\;';
//--------------------------------
//Find Enum-Definitions
if(Enums.Exec(SourceNoComments))then
begin
repeat
begin
//Matches
// 0..complete match string
// 1..typedef enum/enum
// 2..enum name
// 3..enum values
// 4..enum type name
//Add this enum to datatype mapping
if(CompareText(Enums.Match[1], 'typedef enum')=0)then
begin
DatatypeMapping.Add(Enums.Match[4]+' *=P'+Enums.Match[4]);
DatatypeMapping.Add(Enums.Match[4]+'='+Enums.Match[4]);
end;
if(Enums.Match[2]<>'')then
begin
DatatypeMapping.Add(Enums.Match[2]+' *=P'+Enums.Match[2]);
DatatypeMapping.Add('enum '+Enums.Match[2]+'='+Enums.Match[2]);
end;
end
until not Enums.ExecNext;
end;
//--------------------------------
//Find Struct-Definition
Structs.Expression:='(?img)typedef\s{0,}struct\s{0,}\w{0,}\s{0,}\{'+
'\s{0,}([\w\s\*\;\,/\?\(\)\.\[\]]+)\}\s(\w+){1,}\;\s*';
//Scan for Datatype mapping
if(Structs.Exec(SourceNoComments))then
begin
repeat
begin
//Matches
// 0..complete match string
// 1..variables
// 2..struct name
//Add pointer to this struct to datatype mapping
DatatypeMapping.Add(Structs.Match[2]+' *=P'+Structs.Match[2]);
DatatypeMapping.Add('struct '+Structs.Match[2]+' *=P'+Structs.Match[2]);
//Add Datatype to NestedStructsPointers
NestedStructsPointers.Add('P'+Structs.Match[2]);
end
until not Structs.ExecNext;
end;
Result:=DatatypeMapping.Text;
finally
DatatypeMapping.Free;
RegExpr.Free;
Enums.Free;
Structs.Free;
end;
end;
end.
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