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{
Copyright (c) 2013 by Yury Sidorov and the FPC Development Team
XML output of a PPU File
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
****************************************************************************}
unit ppuxml;
{$mode objfpc}{$H+}
interface
uses
SysUtils, Classes, ppuout;
type
{ TPpuXmlOutput }
TPpuXmlOutput = class(TPpuOutput)
private
function XmlStr(const s: string): string;
function GetTagName(const n, def: string): string;
protected
procedure WriteObjectStart(const AName: string; Def: TPpuDef); override;
procedure WriteObjectEnd(const AName: string; Def: TPpuDef); override;
procedure WriteArrayStart(const AName: string); override;
procedure WriteArrayEnd(const AName: string); override;
procedure WriteStr(const AName, AValue: string); override;
public
procedure Init; override;
end;
implementation
{ TPpuXmlOutput }
function TPpuXmlOutput.XmlStr(const s: string): string;
var
ws: widestring;
ps: PWideChar;
pd: PAnsiChar;
slen, dlen, dpos: integer;
procedure _AddChar(c: ansichar);
begin
if dpos = dlen then begin
dlen:=dlen*2;
SetLength(Result, dlen);
pd:=PAnsiChar(Result) + dpos;
end;
pd^:=c;
Inc(pd);
Inc(dpos);
end;
procedure _AddStr(const s: string);
var
p: PAnsiChar;
i: integer;
begin
p:=PAnsiChar(s);
for i:=1 to Length(s) do begin
_AddChar(p^);
Inc(p);
end;
end;
var
c: widechar;
begin
ws:=UTF8Decode(s);
ps:=PWideChar(ws);
slen:=Length(ws);
dlen:=slen + 2;
SetLength(Result, dlen);
pd:=PAnsiChar(Result);
dpos:=0;
while slen > 0 do begin
c:=ps^;
case c of
'<': _AddStr('<');
'>': _AddStr('>');
'&': _AddStr('&');
'''': _AddStr(''');
'"': _AddStr('"');
'\': _AddStr('\\');
else
if (c > #127) or (byte(c) in [9, 10, 13]) then
_AddStr('&#x' + hexStr(word(c), 4) + ';')
else
if c < #32 then
_AddStr('\x' + hexStr(byte(c), 2))
else
_AddChar(c);
end;
Inc(ps);
Dec(slen);
end;
SetLength(Result, dpos);
end;
function TPpuXmlOutput.GetTagName(const n, def: string): string;
begin
Result:=LowerCase(n);
if Result = '' then
Result:=def;
end;
procedure TPpuXmlOutput.WriteStr(const AName, AValue: string);
begin
if AName = 'Type' then
exit;
WriteLn(Format('<%s>%s</%0:s>', [GetTagName(AName, 'value'), XmlStr(AValue)]));
end;
procedure TPpuXmlOutput.WriteArrayStart(const AName: string);
begin
if (AName = '') and (Indent = 0) then
exit;
WriteLn(Format('<%s>', [GetTagName(AName, 'array')]));
inherited;
end;
procedure TPpuXmlOutput.WriteArrayEnd(const AName: string);
begin
if (AName = '') and (Indent = 0) then
exit;
inherited;
WriteLn(Format('</%s>', [GetTagName(AName, 'array')]));
end;
procedure TPpuXmlOutput.WriteObjectStart(const AName: string; Def: TPpuDef);
begin
if Def = nil then
WriteLn(Format('<%s>', [GetTagName(AName, 'object')]))
else
WriteLn(Format('<%s>', [GetTagName(Def.DefTypeName, 'object')]));
inherited;
end;
procedure TPpuXmlOutput.WriteObjectEnd(const AName: string; Def: TPpuDef);
begin
inherited;
if Def = nil then
WriteLn(Format('</%s>', [GetTagName(AName, 'object')]))
else
WriteLn(Format('</%s>', [GetTagName(Def.DefTypeName, 'object')]));
end;
procedure TPpuXmlOutput.Init;
begin
inherited Init;
WriteLn('<?xml version="1.0" encoding="utf-8"?>');
end;
end.
|
