Бывалый
Профиль
Группа: Участник
Сообщений: 216
Регистрация: 16.9.2007
Репутация: нет
Всего: 1
|
Доброе время суток! Помогите разобраться пожалусто как это работает ! Как воспользоваться ???(( | Код |
procedure HTMLtoRTF(html: string; var rtf: TRichedit);
var
i, dummy, row: Integer;
cfont: TFont;
Tag, tagparams: string;
params: TStringList;
function GetTag(s: string; var i: Integer; var Tag, tagparams: string): Boolean;
var
a_tag: Boolean;
begin
GetTag := False;
Tag := '';
tagparams := '';
a_tag := False;
while i <= Length(s) do
begin
Inc(i);
if s[i] = '<' then
begin
GetTag := False;
Exit;
end;
if s[i] = '>' then
begin
GetTag := True;
Exit;
end;
if not a_tag then
begin
if s[i] = ' ' then
begin
if Tag <> '' then a_tag := True;
end
else
Tag := Tag + s[i];
end
else
tagparams := tagparams + s[i];
end;
end;
procedure GetTagParams(tagparams: string; var params: TStringList);
var
i: Integer;
s: string;
gleich: Boolean;
function notGleich(s: string; i: Integer): Boolean;
begin
notGleich := True;
while i <= Length(s) do
begin
Inc(i);
if s[i] = '=' then
begin
notGleich := False;
Exit;
end
else if s[i] <> ' ' then Exit;
end;
end;
begin
Params.Clear;
s := '';
for i := 1 to Length(tagparams) do
begin
if (tagparams[i] <> ' ') then
begin
if tagparams[i] <> '=' then gleich := False;
if (tagparams[i] <> '''') and (tagparams[i] <> '"') then s := s + tagparams[i]
end
else
begin
if (notGleich(tagparams, i)) and (not Gleich) then
begin
params.Add(s);
s := '';
end
else
Gleich := True;
end;
end;
params.Add(s);
end;
function HtmlToColor(Color: string): TColor;
begin
Result := StringToColor('$' + Copy(Color, 6, 2) + Copy(Color, 4,
2) + Copy(Color, 2, 2));
end;
procedure TransformSpecialChars(var s: string; i: Integer);
var
c: string;
z, z2: Byte;
i2: Integer;
const
nchars = 9;
chars: array[1..nchars, 1..2] of string =
(('O', 'O'), ('o', 'o'), ('A', 'A'), ('a', 'a'),
('U', 'U'), ('u', 'u'), ('?', '?'), ('<', '<'),
('>', '>'));
begin
c := '';
i2 := i;
for z := 1 to 7 do
begin
c := c + s[i2];
for z2 := 1 to nchars do
begin
if chars[z2, 1] = c then
begin
Delete(s, i, Length(c));
Insert(chars[z2, 2], s, i);
Exit;
end;
end;
Inc(i2);
end;
end;
function CalculateRTFSize(pt: Integer): Integer;
begin
case pt of
1: Result := 6;
2: Result := 9;
3: Result := 12;
4: Result := 15;
5: Result := 18;
6: Result := 22;
else
Result := 30;
end;
end;
type
fontstack = record
Font: array[1..100] of tfont;
Pos: Byte;
end;
procedure CreateFontStack(var s: fontstack);
begin
s.Pos := 0;
end;
procedure PushFontStack(var s: Fontstack; fnt: TFont);
begin
Inc(s.Pos);
s.Font[s.Pos] := TFont.Create;
s.Font[s.Pos].Assign(fnt);
end;
procedure PopFontStack(var s: Fontstack; var fnt: TFont);
begin
if (s.Font[s.Pos] <> nil) and (s.Pos > 0) then
begin
fnt.Assign(s.Font[s.Pos]);
s.Font[s.Pos].Free;
Dec(s.Pos);
end;
end;
procedure FreeFontStack(var s: Fontstack);
begin
while s.Pos > 0 do
begin
s.Font[s.Pos].Free;
Dec(s.Pos);
end;
end;
var
fo_cnt: array[1..1000] of tfont;
fo_liste: array[1..1000] of Boolean;
fo_pos: TStringList;
fo_stk: FontStack;
wordwrap, liste: Boolean;
begin
CreateFontStack(fo_Stk);
fo_Pos := TStringList.Create;
rtf.Lines.BeginUpdate;
rtf.Lines.Clear;
wordwrap := rtf.wordwrap;
rtf.WordWrap := False;
rtf.Lines.Add('');
Params := TStringList.Create;
cfont := TFont.Create;
cfont.Assign(rtf.Font);
i := 1;
row := 0;
Liste := False;
rtf.selstart := 0;
if Length(html) = 0 then Exit;
repeat;
if html[i] = '<' then
begin
dummy := i;
GetTag(html, i, Tag, tagparams);
GetTagParams(tagparams, params);
if Uppercase(Tag) = 'FONT' then
begin
pushFontstack(fo_stk, cfont);
if params.Values['size'] <> '' then
cfont.Size := CalculateRTFSize(StrToInt(params.Values['size']));
if params.Values['color'] <> '' then cfont.Color :=
htmltocolor(params.Values['color']);
end
else if Uppercase(Tag) = '/FONT' then popFontstack(fo_stk, cfont)
else
if Uppercase(Tag) = 'H1' then
begin
pushFontstack(fo_stk, cfont);
cfont.Size := 6;
end
else if Uppercase(Tag) = '/H1' then popFontstack(fo_stk, cfont)
else
if Uppercase(Tag) = 'H2' then
begin
pushFontstack(fo_stk, cfont);
cfont.Size := 9;
end
else if Uppercase(Tag) = '/H2' then popFontstack(fo_stk, cfont)
else
if Uppercase(Tag) = 'H3' then
begin
pushFontstack(fo_stk, cfont);
cfont.Size := 12;
end
else if Uppercase(Tag) = '/H3' then popFontstack(fo_stk, cfont)
else
if Uppercase(Tag) = 'H4' then
begin
pushFontstack(fo_stk, cfont);
cfont.Size := 15;
end
else if Uppercase(Tag) = '/H4' then popFontstack(fo_stk, cfont)
else
if Uppercase(Tag) = 'H5' then
begin
pushFontstack(fo_stk, cfont);
cfont.Size := 18;
end
else if Uppercase(Tag) = '/H5' then popFontstack(fo_stk, cfont)
else
if Uppercase(Tag) = 'H6' then
begin
pushFontstack(fo_stk, cfont);
cfont.Size := 22;
end
else if Uppercase(Tag) = '/H6' then popFontstack(fo_stk, cfont)
else
if Uppercase(Tag) = 'H7' then
begin
pushFontstack(fo_stk, cfont);
cfont.Size := 27;
end
else if Uppercase(Tag) = '/H7' then popFontstack(fo_stk, cfont)
else
if Uppercase(Tag) = 'B' then cfont.Style := cfont.Style + [fsbold]
else if Uppercase(Tag) = '/B' then cfont.Style := cfont.Style - [fsbold]
else
if Uppercase(Tag) = 'I' then cfont.Style := cfont.Style + [fsitalic]
else if Uppercase(Tag) = '/I' then cfont.Style := cfont.Style - [fsitalic]
else
if Uppercase(Tag) = 'U' then cfont.Style := cfont.Style + [fsunderline]
else if Uppercase(Tag) = '/U' then cfont.Style := cfont.Style - [fsunderline]
else
if Uppercase(Tag) = 'UL' then liste := True
else if Uppercase(Tag) = '/UL' then
begin
liste := False;
rtf.Lines.Add('');
Inc(row);
rtf.Lines.Add('');
Inc(row);
end
else
if (Uppercase(Tag) = 'BR') or (Uppercase(Tag) = 'LI') then
begin
rtf.Lines.Add('');
Inc(row);
end;
// else rtf.Lines[row]:=RTF.lines[row]+'<'+tag+' '+tagparams+'>';
fo_pos.Add(IntToStr(rtf.selstart));
fo_cnt[fo_pos.Count] := TFont.Create;
fo_cnt[fo_pos.Count].Assign(cfont);
fo_liste[fo_pos.Count] := liste;
end
else
begin
if html[i] = '&' then Transformspecialchars(html, i);
if (Ord(html[i]) <> 13) and (Ord(html[i]) <> 10) then
rtf.Lines[row] := RTF.Lines[row] + html[i];
end;
Inc(i);
until i >= Length(html);
fo_pos.Add('999999');
for i := 0 to fo_pos.Count - 2 do
begin
rtf.SelStart := StrToInt(fo_pos[i]);
rtf.SelLength := StrToInt(fo_pos[i + 1]) - rtf.SelStart;
rtf.SelAttributes.Style := fo_cnt[i + 1].Style;
rtf.SelAttributes.Size := fo_cnt[i + 1].Size;
rtf.SelAttributes.Color := fo_cnt[i + 1].Color;
fo_cnt[i + 1].Free;
end;
i := 0;
while i <= fo_pos.Count - 2 do
begin
if fo_liste[i + 1] then
begin
rtf.SelStart := StrToInt(fo_pos[i + 1]);
while fo_liste[i + 1] do Inc(i);
rtf.SelLength := StrToInt(fo_pos[i - 1]) - rtf.SelStart;
rtf.Paragraph.Numbering := nsBullet;
end;
Inc(i);
end;
rtf.Lines.EndUpdate;
Params.Free;
cfont.Free;
rtf.WordWrap := wordwrap;
FreeFontStack(fo_stk);
end;
|
Зарание благодарю!!! С уважением, Volkogriz!!!! --------------------
("`-''-/").___..--''"`-._`6_6 ) ,,,`-. ( ''' ).` "_-.__.')(_Y_.)' ._''' ) `._ `. ``-.__'.-'_..`--'_..-_/'''/--'_.' ,'(il).-'''''(li).' ((!.-' |
как преобразовать HTML в RTF 
Загрузка ...
