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laz_xmlread: improved EXMLError to hold position

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git-svn-id: trunk@22169 -
This commit is contained in:
mattias 2009-10-14 10:29:10 +00:00
parent dd3e06155d
commit 01bda7a61b
1 changed files with 30 additions and 6 deletions
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36
components/codetools/laz_xmlread.pas
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@ -25,11 +25,16 @@ interface
uses
{$IFDEF MEM_CHECK}MemCheck,{$ENDIF}
SysUtils, Classes, Laz_DOM, FileProcs;
SysUtils, Classes, types, Laz_DOM, FileProcs;
type
EXMLReadError = class(Exception);
EXMLReadError = class(Exception)
public
Position: PtrInt;
LineCol: TPoint;
Descr: string;
end;
procedure ReadXMLFile(out ADoc: TXMLDocument; const AFilename: String); overload;
@ -195,6 +200,7 @@ type
protected
buf, BufStart: PChar;
Filename: String;
function BufPosToLineCol(p: PChar): TPoint;
function BufPosToStr(p: PChar): string;
procedure RaiseExc(const descr: String);
function SkipWhitespace: Boolean;
@ -253,8 +259,7 @@ begin
inherited Create(ADocument);
end;
function TXMLReader.BufPosToStr(p: PChar): string;
function TXMLReader.BufPosToLineCol(p: PChar): TPoint;
var
apos: PChar;
x: Integer;
@ -274,12 +279,31 @@ begin
Inc(x);
Inc(apos);
end;
Result:=IntToStr(y)+','+IntToStr(x);
Result.X:=X;
Result.Y:=Y;
end;
function TXMLReader.BufPosToStr(p: PChar): string;
var
LineCol: TPoint;
begin
// find out the line in which the error occured
LineCol:=BufPosToLineCol(BufStart);
Result:=IntToStr(LineCol.y)+','+IntToStr(LineCol.x);
end;
procedure TXMLReader.RaiseExc(const descr: String);
var
Err: EXMLReadError;
LineCol: TPoint;
begin
raise EXMLReadError.Create(Filename+'('+BufPosToStr(buf)+') Error: ' + descr);
LineCol:=BufPosToLineCol(buf);
Err:=EXMLReadError.Create(
Filename+'('+IntToStr(LineCol.y)+','+IntToStr(LineCol.x)+') Error: ' + descr);
Err.Position:=buf-BufStart;
Err.LineCol:=LineCol;
Err.Descr:=descr;
raise Err;
end;
function TXMLReader.SkipWhitespace: Boolean;