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html_parse.pas
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{ Simple and not full html parser
Copyright (C) 2019-2020 Red_prig
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version with the following modification:
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent modules,and
to copy and distribute the resulting executable under terms of your choice,
provided that you also meet, for each linked independent module, the terms
and conditions of the license of that module. An independent module is a
module which is not derived from or based on this library. If you modify
this library, you may extend this exception to your version of the library,
but you are not obligated to do so. If you do not wish to do so, delete this
exception statement from your 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 Library General Public License
for more details.
}
unit html_parse;
{$mode objfpc}{$H+}
interface
uses
Classes,SysUtils;
type
THtmlTagParser=packed class
private
FState:Byte;
EState:Byte;
public
function IsComment:Boolean; inline;
function IsScript:Boolean; inline;
function IsSingleQuoted:Boolean; inline;
function IsDoubleQuoted:Boolean; inline;
function IsQuoted:Boolean; inline;
Procedure SkipElement; inline;
Procedure Abort; inline;
Procedure Parse(P:PAnsiChar;Len:SizeInt);
Procedure OnEndElement; virtual;
Procedure OnElement(C:AnsiChar); virtual;
Procedure OnData(P:PAnsiChar;Len:SizeInt); virtual;
end;
THtmlAttrParser=packed class(THtmlTagParser)
private
PState:Byte;
protected
N,V:Pchar;
F:Char;
public
Destructor Destroy; override;
Procedure OnEndElement; override;
Procedure OnElement(C:AnsiChar); override;
Procedure OnAttr; virtual;
Procedure OnElementName; virtual;
end;
function GetUnescapeHTML(data:Pchar;size:SizeInt):RawByteString;
implementation
Procedure SetPcharZero(var Dst:Pchar); inline;
begin
if Dst=nil then Exit;
Dst[0]:=#0;
end;
function isZero(Dst:Pchar):Boolean; inline;
begin
if Dst=nil then Exit(True);
Result:=Dst[0]=#0;
end;
Procedure SetPchar(var Dst:Pchar;Src:Pchar);
Var
Len:SizeUInt;
begin
if (Src=nil) then
begin
SetPcharZero(Dst);
Exit;
end;
Len:=StrLen(Src)+1;
if (Dst=nil) then
begin
Dst:=GetMem(Len);
end else
if (MemSize(Dst)<Len) then
begin
Dst:=ReAllocMem(Dst,Len);
end;
Move(Src^,Dst^,Len);
end;
Procedure SetChar(var Dst:Pchar;C:Char);
begin
if (C=#0) then
begin
SetPcharZero(Dst);
Exit;
end;
if (Dst=nil) then
begin
Dst:=GetMem(SizeOf(Pointer));
end else
if (MemSize(Dst)<2) then
begin
Dst:=ReAllocMem(Dst,SizeOf(Pointer));
end;
Dst[0]:=C;
Dst[1]:=#0;
end;
Procedure AddChar(var Dst:Pchar;C:Char);
Var
Len:SizeUInt;
begin
if (Dst=nil) then
begin
Dst:=GetMem(SizeOf(Pointer));
Dst[0]:=C;
Dst[1]:=#0;
end else
begin
Len:=StrLen(Dst)+2;
if (MemSize(Dst)<Len) then
begin
Case Len of
0..SizeOf(Pointer):
Dst:=ReAllocMem(Dst,SizeOf(Pointer));
else
Dst:=ReAllocMem(Dst,Len+(Len div 2));
end;
end;
Dec(Len);
Dst[Len]:=#0;
Dec(Len);
Dst[Len]:=C;
end;
end;
Function GetPunctuation(Const name:RawByteString):WideChar;
begin
Result:=#0;
Case name of
'Mu':Result:=#$039C;
'Nu':Result:=#$039D;
'Pi':Result:=#$03A0;
'Xi':Result:=#$039E;
'ge':Result:=#$2265;
'gt':Result:=#$003E;
'le':Result:=#$2264;
'lt':Result:=#$003C;
'mu':Result:=#$03BC;
'ne':Result:=#$2260;
'ni':Result:=#$220B;
'nu':Result:=#$03BD;
'or':Result:=#$2228;
'pi':Result:=#$03C0;
'xi':Result:=#$03BE;
'Chi':Result:=#$03A7;
'ETH':Result:=#$00D0;
'Eta':Result:=#$0397;
'Phi':Result:=#$03A6;
'Psi':Result:=#$03A8;
'Rho':Result:=#$03A1;
'Tau':Result:=#$03A4;
'amp':Result:=#$0026;
'and':Result:=#$2227;
'ang':Result:=#$2220;
'cap':Result:=#$2229;
'chi':Result:=#$03C7;
'cup':Result:=#$222A;
'deg':Result:=#$00B0;
'eta':Result:=#$03B7;
'eth':Result:=#$00F0;
'int':Result:=#$222B;
'loz':Result:=#$25CA;
'lrm':Result:=#$200E;
'not':Result:=#$00AC;
'phi':Result:=#$03C6;
'piv':Result:=#$03D6;
'psi':Result:=#$03C8;
'reg':Result:=#$00AE;
'rho':Result:=#$03C1;
'rlm':Result:=#$200F;
'shy':Result:=#$00AD;
'sim':Result:=#$223C;
'sub':Result:=#$2282;
'sum':Result:=#$2211;
'sup':Result:=#$2283;
'tau':Result:=#$03C4;
'uml':Result:=#$00A8;
'yen':Result:=#$00A5;
'zwj':Result:=#$200D;
'Auml':Result:=#$00C4;
'Beta':Result:=#$0392;
'Euml':Result:=#$00CB;
'Iota':Result:=#$0399;
'Iuml':Result:=#$00CF;
'Ouml':Result:=#$00D6;
'Uuml':Result:=#$00DC;
'Yuml':Result:=#$014E;
'Zeta':Result:=#$0396;
'auml':Result:=#$00E4;
'beta':Result:=#$03B2;
'bull':Result:=#$2022;
'cent':Result:=#$00A2;
'circ':Result:=#$02C6;
'cong':Result:=#$2245;
'copy':Result:=#$00A9;
'dArr':Result:=#$21D3;
'darr':Result:=#$2193;
'emsp':Result:=#$2003;
'ensp':Result:=#$2002;
'euml':Result:=#$00EB;
'euro':Result:=#$20AC;
'fnof':Result:=#$0192;
'hArr':Result:=#$21D4;
'harr':Result:=#$2194;
'iota':Result:=#$03B9;
'isin':Result:=#$2208;
'iuml':Result:=#$00EF;
'lArr':Result:=#$21D0;
'lang':Result:=#$2329;
'larr':Result:=#$2190;
'macr':Result:=#$00AF;
'nbsp':Result:=#$00A0;
'nsub':Result:=#$2284;
'ordf':Result:=#$00AA;
'ordm':Result:=#$00BA;
'ouml':Result:=#$00F6;
'para':Result:=#$00B6;
'part':Result:=#$2202;
'perp':Result:=#$22A5;
'prod':Result:=#$220F;
'prop':Result:=#$221D;
'quot':Result:=#$0022;
'rArr':Result:=#$21D2;
'rang':Result:=#$232A;
'rarr':Result:=#$2192;
'real':Result:=#$211C;
'sdot':Result:=#$22C5;
'sect':Result:=#$00A7;
'sube':Result:=#$2286;
'sup1':Result:=#$00B9;
'sup2':Result:=#$00B2;
'sup3':Result:=#$00B3;
'supe':Result:=#$2287;
'uArr':Result:=#$21D1;
'uarr':Result:=#$2191;
'uuml':Result:=#$00FC;
'yuml':Result:=#$00FF;
'zeta':Result:=#$03B6;
'zwnj':Result:=#$200C;
'AElig':Result:=#$00C6;
'Acirc':Result:=#$00C2;
'Alpha':Result:=#$0391;
'Aring':Result:=#$00C5;
'Delta':Result:=#$0394;
'Ecirc':Result:=#$00CA;
'Gamma':Result:=#$0393;
'Icirc':Result:=#$00CE;
'Kappa':Result:=#$039A;
'OElig':Result:=#$0152;
'Ocirc':Result:=#$00D4;
'Omega':Result:=#$03A9;
'Prime':Result:=#$2033;
'Sigma':Result:=#$03A3;
'THORN':Result:=#$00DE;
'Theta':Result:=#$0398;
'Ucirc':Result:=#$00DB;
'acirc':Result:=#$00E2;
'acute':Result:=#$00B4;
'aelig':Result:=#$00E6;
'alpha':Result:=#$03B1;
'aring':Result:=#$00E5;
'asymp':Result:=#$2248;
'bdquo':Result:=#$201E;
'cedil':Result:=#$00B8;
'clubs':Result:=#$2663;
'crarr':Result:=#$21B5;
'delta':Result:=#$03B4;
'diams':Result:=#$2666;
'ecirc':Result:=#$00EA;
'empty':Result:=#$2205;
'equiv':Result:=#$2261;
'exist':Result:=#$2203;
'frasl':Result:=#$2044;
'gamma':Result:=#$03B3;
'icirc':Result:=#$00EE;
'iexcl':Result:=#$00A1;
'image':Result:=#$2111;
'infin':Result:=#$221E;
'kappa':Result:=#$03BA;
'laquo':Result:=#$00AB;
'lceil':Result:=#$2308;
'ldquo':Result:=#$201C;
'lsquo':Result:=#$2018;
'mdash':Result:=#$2014;
'micro':Result:=#$00B5;
'minus':Result:=#$2212;
'nabla':Result:=#$2207;
'ndash':Result:=#$2013;
'notin':Result:=#$2209;
'ocirc':Result:=#$00F4;
'oelig':Result:=#$0153;
'oline':Result:=#$203E;
'omega':Result:=#$03C9;
'oplus':Result:=#$2295;
'pound':Result:=#$00A3;
'prime':Result:=#$2032;
'radic':Result:=#$221A;
'raquo':Result:=#$00BB;
'rceil':Result:=#$2309;
'rdquo':Result:=#$201D;
'rsquo':Result:=#$2019;
'sbquo':Result:=#$201A;
'sigma':Result:=#$03C3;
'szlig':Result:=#$00DF;
'theta':Result:=#$03B8;
'thorn':Result:=#$00FE;
'tilde':Result:=#$02DC;
'times':Result:=#$00D7;
'trade':Result:=#$2122;
'ucirc':Result:=#$00FB;
'upsih':Result:=#$03D2;
'Aacute':Result:=#$00C1;
'Agrave':Result:=#$00C0;
'Atilde':Result:=#$00C3;
'Ccedil':Result:=#$00C7;
'Dagger':Result:=#$2021;
'Eacute':Result:=#$00C9;
'Egrave':Result:=#$00C8;
'Iacute':Result:=#$00CD;
'Igrave':Result:=#$00CC;
'Lambda':Result:=#$039B;
'Ntilde':Result:=#$00D1;
'Oacute':Result:=#$00D3;
'Ograve':Result:=#$00D2;
'Oslash':Result:=#$00D8;
'Otilde':Result:=#$00D5;
'Scaron':Result:=#$0160;
'Uacute':Result:=#$00DA;
'Ugrave':Result:=#$00D9;
'Yacute':Result:=#$00DD;
'aacute':Result:=#$00E1;
'agrave':Result:=#$00E0;
'atilde':Result:=#$00E3;
'brvbar':Result:=#$00A6;
'ccedil':Result:=#$00E7;
'curren':Result:=#$00A4;
'dagger':Result:=#$2020;
'divide':Result:=#$00F7;
'eacute':Result:=#$00E9;
'egrave':Result:=#$00E8;
'forall':Result:=#$2200;
'frac12':Result:=#$00BD;
'frac14':Result:=#$00BC;
'frac34':Result:=#$00BE;
'hearts':Result:=#$2665;
'hellip':Result:=#$2026;
'iacute':Result:=#$00ED;
'igrave':Result:=#$00EC;
'iquest':Result:=#$00BF;
'lambda':Result:=#$03BB;
'lfloor':Result:=#$230A;
'lowast':Result:=#$2217;
'lsaquo':Result:=#$2039;
'middot':Result:=#$00B7;
'ntilde':Result:=#$00F1;
'oacute':Result:=#$00F3;
'ograve':Result:=#$00F2;
'oslash':Result:=#$00F8;
'otilde':Result:=#$00F5;
'otimes':Result:=#$2297;
'permil':Result:=#$2030;
'plusmn':Result:=#$00B1;
'rfloor':Result:=#$230B;
'rsaquo':Result:=#$203A;
'scaron':Result:=#$0161;
'sigmaf':Result:=#$03C2;
'spades':Result:=#$2660;
'there4':Result:=#$2234;
'thinsp':Result:=#$2009;
'uacute':Result:=#$00FA;
'ugrave':Result:=#$00F9;
'weierp':Result:=#$2118;
'yacute':Result:=#$00FD;
'Epsilon':Result:=#$0395;
'Omicron':Result:=#$039F;
'Upsilon':Result:=#$03A5;
'alefsym':Result:=#$2135;
'epsilon':Result:=#$03B5;
'omicron':Result:=#$03BF;
'upsilon':Result:=#$03C5;
'thetasym':Result:=#$03D1;
end;
end;
Function GetStr(data:Pchar;size:size_t):RawByteString; inline;
begin
SetLength(Result,size);
Move(data^,Result[1],size);
end;
function GetUnescapeHTML(data:Pchar;size:SizeInt):RawByteString;
Var
i,v:SizeInt;
W:WideChar;
begin
Result:='';
if (size=0) then Exit;
i:=0;
v:=0;
repeat
v:=System.IndexByte(data[i],size-i,Byte('&'));
if (v<0) then
begin
if (i<size) then Result:=Result+GetStr(@data[i],size-i);
Exit;
end else
begin
if (v>0) then Result:=Result+GetStr(@data[i],v);
i:=i+v;
if (i>=size) then
begin
Result:=Result+'&';
Exit;
end;
v:=System.IndexByte(data[i+1],size-i-1,Byte(';'));
if (v<0) then
begin
if (i<size) then Result:=Result+GetStr(@data[i],size-i);
Exit;
end else
begin
if (v>0) then
begin
W:=GetPunctuation(GetStr(@data[i+1],v));
if (W<>#0) then
begin
Result:=Result+UTF8Encode(W);
end else
begin
Result:=Result+GetStr(@data[i],v+1);
end;
end;
i:=i+v+2;
end;
end;
until (i>=size);
end;
{Function _CmpText(buf1,buf2:Pchar;Len:SizeInt):SizeInt;
Var
i:SizeInt;
begin
Result:=0;
For i:=0 to Len-1 do
begin
Result:=Byte(LowerCase(buf1[i]));
Result:=Result-Byte(LowerCase(buf2[i]));
if Result<>0 then Break;
end;
end;}
Function CmpComment(buf:Pchar):Boolean; inline;
Const
DWCMP=$3E2D2D;
begin
// Result:=False;
//if buf[0]<>'-' then Exit;
//if buf[1]<>'-' then Exit;
//if buf[2]<>'>' then Exit;
Result:=(PDword(buf)^ and $FFFFFF)=DWCMP;
//Result:=True;
end;
Function CmpScript(buf:Pchar):Boolean;
Const
WCMP=$2F3C;
begin
Result:=False;
//if buf[0]<>'<' then Exit;
//if buf[1]<>'/' then Exit;
if PWord(buf)^<>WCMP then Exit;
if LowerCase(buf[2])<>'s' then Exit;
if LowerCase(buf[3])<>'c' then Exit;
if LowerCase(buf[4])<>'r' then Exit;
if LowerCase(buf[5])<>'i' then Exit;
if LowerCase(buf[6])<>'p' then Exit;
if LowerCase(buf[7])<>'t' then Exit;
Result:=True;
end;
Function CmpStyle(buf:Pchar):Boolean;
Const
WCMP=$2F3C;
begin
Result:=False;
//if buf[0]<>'<' then Exit;
//if buf[1]<>'/' then Exit;
if PWord(buf)^<>WCMP then Exit;
if LowerCase(buf[2])<>'s' then Exit;
if LowerCase(buf[3])<>'t' then Exit;
if LowerCase(buf[4])<>'y' then Exit;
if LowerCase(buf[5])<>'l' then Exit;
if LowerCase(buf[6])<>'e' then Exit;
Result:=True;
end;
Function MemNext_Comment(Memory:Pointer;i,Size:SizeInt):SizeInt;
begin
Result:=-1;
if (i<0) or (i>=Size) or (Size-i<3) then Exit;
Size:=Size-3;
while (i<=Size) do
begin
if CmpComment(@PByte(Memory)[i]) then Exit(i+3);
case PByte(Memory)[i+3] of
45:i:=i+2;
62:i:=i+1;
else
i:=i+4;
end;
end;
end;
Function MemPos_Script(Memory:Pointer;i,Size:SizeInt):SizeInt;
begin
Result:=-1;
if (i<0) or (i>=Size) or (Size-i<8) then Exit;
Size:=Size-8;
while (i<=Size) do
begin
if CmpScript(@PByte(Memory)[i]) then Exit(i);
case PByte(Memory)[i+8] of
47 :i:=i+7;
60 :i:=i+8;
99 ,67:i:=i+5;
105,73:i:=i+3;
112,80:i:=i+2;
114,82:i:=i+4;
115,83:i:=i+6;
116,84:i:=i+1;
else
i:=i+9;
end;
end;
end;
Function MemPos_Style(Memory:Pointer;i,Size:SizeInt):SizeInt;
begin
Result:=-1;
if (i<0) or (i>=Size) or (Size-i<7) then Exit;
Size:=Size-7;
while (i<=Size) do
begin
if CmpStyle(@PByte(Memory)[i]) then Exit(i);
case PByte(Memory)[i+7] of
47 :i:=i+6;
60 :i:=i+7;
101,69:i:=i+1;
108,76:i:=i+2;
115,83:i:=i+5;
116,84:i:=i+4;
121,89:i:=i+3;
else
i:=i+8;
end;
end;
end;
{
s 115 83
c 99 67
r 114 82
i 105 73
p 112 80
t 116 84
y 121 89
l 108 76
e 101 69
}
{Procedure WriteUp(C:Char);
begin
Writeln(C,' ',Ord(LowerCase(C)),' ',Ord(UpCase(C)));
end;}
{
Function MemPos(Memory:Pointer;Const Substr:RawByteString;i,Size:SizeInt):SizeInt;
Const
ASIZEM=255;
var
q,Len:SizeInt;
qs_bc:array[0..ASIZEM] of SizeInt;
begin
Result:=-1;
if (Length(SubStr)=0) or (i<0) or (i>=Size) or (Size-i<Length(SubStr)) then Exit;
Len:=Length(SubStr)+1;
For q:=0 to ASIZEM do qs_bc[q]:=Len;
For q:=1 to Length(SubStr) do qs_bc[Byte(LowerCase(SubStr[q]))]:=Len-q;
Writeln(Substr,' Len=',Length(SubStr));
For q:=0 to ASIZEM do
begin
Writeln('#',q,'=',qs_bc[q]);
end;
{WriteUp('s');
WriteUp('c');
WriteUp('r');
WriteUp('i');
WriteUp('p');
WriteUp('t');
WriteUp('y');
WriteUp('l');
WriteUp('e');}
Len:=Size-Length(SubStr);
while (i<=Len) do
begin
if _CmpText(@PByte(Memory)[i],@SubStr[1],Length(SubStr))=0 then Exit(i);
i:=i+qs_bc[Byte(LowerCase(PChar(Memory)[i+Length(SubStr)]))];
end;
end;
}
{
Function MemNext(Memory:Pointer;Const Substr:RawByteString;i,Size:SizeInt):SizeInt; inline;
begin
Result:=-1;
i:=MemPos(Memory,Substr,i,Size);
if (i<>-1) then Result:=i+Length(Substr);
end;
}
Destructor THtmlAttrParser.Destroy;
begin
FreeMem(N);
FreeMem(V);
inherited;
end;
Procedure THtmlAttrParser.OnEndElement;
begin
Case PState of
0,
5:OnElementName;
1,
2,
3:OnAttr;
end;
SetPcharZero(N);
SetPcharZero(V);
PState:=0;
end;
Procedure THtmlAttrParser.OnAttr;
begin
end;
Procedure THtmlAttrParser.OnElementName;
begin
end;
//0 5 4 1 2 3 4
//?element Name="value"
Procedure THtmlAttrParser.OnElement(C:AnsiChar);
begin
if IsQuoted then
begin
Case PState of
0:begin
F:=#0;
PState:=5;
AddChar(N,C);
end;
5,
1:AddChar(N,C);
2:begin
PState:=3;
SetPcharZero(V);
end;
3:if IsSingleQuoted then
begin
if (C<>'''') then AddChar(V,C);
end else
begin
if (C<>'"') then AddChar(V,C);
end;
end;
end else
Case PState of
0:Case C of
#0..' ',#$FF:
begin
F:=#0;
PState:=4;
OnElementName;
SetPcharZero(N);
end;
'!','?','/':
begin
F:=C;
PState:=5;
end;
else
begin
F:=#0;
PState:=5;
AddChar(N,C);
end;
end;
5:Case C of
#0..' ',#$FF:
begin
PState:=4;
OnElementName;
SetPcharZero(N);
end;
else
begin
AddChar(N,C);
end;
end;
1:Case C of
#0..' ',#$FF:
begin
PState:=4;
OnAttr;
SetPcharZero(N);
SetPcharZero(V);
end;
'=':
begin
PState:=2;
end;
else
begin
AddChar(N,C);
end;
end;
2:Case C of
#0..' ',#$FF:
begin
PState:=4;
OnAttr;
SetPcharZero(N);
SetPcharZero(V);
end;
else
begin
PState:=3;
SetChar(V,C);
end;
end;
3:Case C of
#0..' ',#$FF:
begin
PState:=4;
OnAttr;
SetPcharZero(N);
SetPcharZero(V);
end;
else
begin
AddChar(V,C);
end;
end;
4:Case C of
#0..' ',#$FF:;
else
begin
PState:=1;
SetChar(N,C);
end;
end;
end;
end;
Procedure THtmlTagParser.OnEndElement;
begin
end;
Procedure THtmlTagParser.OnElement(C:AnsiChar);
begin
end;
Procedure THtmlTagParser.OnData(P:PAnsiChar;Len:SizeInt);
begin
end;
function THtmlTagParser.IsComment:Boolean; inline;
begin
Result:=(FState=02);
end;
function THtmlTagParser.IsScript:Boolean; inline;
begin
Result:=(FState=03);
end;
function THtmlTagParser.IsSingleQuoted:Boolean; inline;
begin
Result:=(FState=12)
end;
function THtmlTagParser.IsDoubleQuoted:Boolean; inline;
begin
Result:=(FState=13)
end;
function THtmlTagParser.IsQuoted:Boolean; inline;
begin
Result:=IsSingleQuoted or IsDoubleQuoted;
end;
Procedure THtmlTagParser.SkipElement; inline;
begin
EState:=40;
end;
Procedure THtmlTagParser.Abort; inline;
begin
FState:=05;
end;
Procedure THtmlTagParser.Parse(P:PAnsiChar;Len:SizeInt);
Var
i,v:SizeInt;
begin
if (P=nil) or (Len<=0) then Exit;
i:=0;
v:=0;
While (i<Len) do
begin
Case FState of
01:begin //open tag
FState:=11;
Case P[i] of
'>':
begin
FState:=00;
OnEndElement;
v:=i+1;
end;
'''':begin
FState:=12;
OnElement(P[i]);
end;
'"':begin
FState:=13;
OnElement(P[i]);
end;
'!':EState:=14;
's',
'S':begin
EState:=20;
OnElement(P[i]);
end;
else
OnElement(P[i]);
end;
end;
12:begin
if EState<>40 then OnElement(P[i]);
Case P[i] of //tag qote1 close
'''':FState:=11;
end;
end;
13:begin
if EState<>40 then OnElement(P[i]);
Case P[i] of //tag qote1 close
'"':FState:=11;
end;
end;
11:begin //opened tag
Case EState of
14:Case P[i] of //open tag comment1
'-': EState:=15;
else
begin
EState:=00;
OnElement('!');
end;
end;
15:Case P[i] of //open tag comment2
'-': FState:=02;
else
begin
EState:=00;
OnElement('!');
OnElement('-');
end;
end;
20:Case P[i] of //open tag s
'c',
'C': EState:=21;
't',
'T': EState:=30;
else EState:=00;
end;
21:Case P[i] of //open tag c
'r',
'R': EState:=22;
else EState:=00;
end;
22:Case P[i] of //open tag r
'i',
'I': EState:=23;
else EState:=00;
end;
23:Case P[i] of //open tag i
'p',
'P': EState:=24;
else EState:=00;
end;
24:Case P[i] of //open tag p
't',
'T': EState:=25; //opened script tag
else EState:=00;
end;
30:Case P[i] of //open tag t
'y',
'Y': EState:=31;
else EState:=00;
end;
31:Case P[i] of //open tag y
'l',
'L': EState:=32;
else EState:=00;
end;
32:Case P[i] of //open tag l
'e',
'E': EState:=33; //opened style tag
else EState:=00;
end;
end;
Case EState of
14,15:;//nothing
else
begin
Case P[i] of //opened tag //