ANTICHAT — форум по информационной безопасности, OSINT и технологиям

function TMainForm.ComparePages(page1,page2:string):boolean;
var s,s1,s2:string;i,j:integer; space,t:boolean;
begin
s:=page1;
while pos('<script',s)<>0 do
s:=copy(s,1,pos('<script',s)-1)+copy(s,pos('</script>',s)+9,length(s));
while pos('&nbsp;',s)<>0 do
s:=copy(s,1,pos('&nbsp;',s)-1)+copy(s,pos('&nbsp;',s)+6,length(s));
s1:='';
t:=true;
space:=false;
for i:=1 to length(s) do
if not(s[i] in [#$D,#$A,#9]) then
  if ((s[i]=' ')and(s[i+1]<>' '))or (s[i]<>' ') then
   if (s[i]='<') then t:=false else
    if (s[i]='>') then
      begin
       t:=true;
       space:=true;
      end else
        if t then
         if (s[i]=' ')or(space) then begin
          if (length(s1)<>0) then begin
           if (s1[length(s1)]<>' ') then begin
            if (space)and(s[i]<>' ') then
             s1:=s1+' '+s[i]
            else
             s1:=s1+s[i];
           end else if (s[i]<>' ') then s1:=s1+s[i];
           space:=false;
          end else begin
            s1:=s1+s[i];
            space:=false;
          end;
         end else
          s1:=s1+s[i];

s2:=s1;

s:=page2;
while pos('<script',s)<>0 do
s:=copy(s,1,pos('<script',s)-1)+copy(s,pos('</script>',s)+9,length(s));
while pos('&nbsp;',s)<>0 do
s:=copy(s,1,pos('&nbsp;',s)-1)+copy(s,pos('&nbsp;',s)+6,length(s));
s1:='';
t:=true;
space:=false;
for i:=1 to length(s) do
if not(s[i] in [#$D,#$A,#9]) then
  if ((s[i]=' ')and(s[i+1]<>' '))or (s[i]<>' ') then
   if (s[i]='<') then t:=false else
    if (s[i]='>') then
      begin
       t:=true;
       space:=true;
      end else
        if t then
         if (s[i]=' ')or(space) then begin
          if (length(s1)<>0) then begin
           if (s1[length(s1)]<>' ') then begin
            if (space)and(s[i]<>' ') then
             s1:=s1+' '+s[i]
            else
             s1:=s1+s[i];
           end else if (s[i]<>' ') then s1:=s1+s[i];
           space:=false;
          end else begin
            s1:=s1+s[i];
            space:=false;
          end;
         end else
          s1:=s1+s[i];


j:=length(s2);
while pos(' ',s1)<>0 do begin
  if pos(copy(s1,1,pos(' ',s1)-1),s2)<>0 then begin
   delete(s2,pos(copy(s1,1,pos(' ',s1)-1),s2),length(copy(s1,1,pos(' ',s1)-1)));
   s2:=trim(s2);
  end;
  delete(s1,1,pos(' ',s1));
  s1:=trim(s1);
end;
showmessage(floattostr(length(s2)/j));
end;