Palindrome/fi

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Deutsch (de) English (en) suomi (fi) français (fr)

Palindromi

Palindromi on sana, lause, numero tai muu sarja symboleita tai elementtejä, joiden merkitys tulkataan samalla tavalla sekä etuperin ja takaperin

Esimerkkejä

Englanti

  • racecar
  • A man, a plan, a canal: Panama
  • Madam I'm Adam

Arabia

  • مودته تدوم لكل هول * وهل كل مودته تدوم

Armenia

  • Արա իմ, առած դրամ՝ քաղաքեքաղաք մարդ ծառա մի արա
  • Սերամա՜հ եթե համարես

Suomi

  • saippuakivikauppias
  • No niin, on aamu. Kehua sinua kai saan, ah, ihana Kristian. Nait Sirkan, ah, ihana asia, kaunis. Au, hekumaa. No niin on.
  • No, oikotie vei Tokioon.

Venäjä

  • А роза упала на лапу Азора
  • луну дунул
  • лак резала зеркал

Funktio IsPalindome

Tämä funktio toimii ASCII ja UTF-8 koodauksella.

function IsPalindome(const a_text: string): boolean;
var
  i, j       :longint;
  s1, s2, s3 :string;
begin
  s1 := UTF8LowerCase( a_text );
  j := length( s1 );
  i := 1;
  s2 := '';
  s3 := '';
  while ( i <= j ) do
    begin
      if s1[i] < #$C0 then  // ASCII
        begin
          if (s1[i] >= #$30) and (s1[i] < #$7B)then
            begin
              if (s1[i] > #$60) or (s1[i] < #$3A) then
                begin
                  s2 := s1[i] + s2;
                  s3 := s3 + s1[i];
                end;
              end;
            inc( i );
          end
        else
        begin
          begin
            if s1[i] < #$E0 then  // two byte
              begin
                if ((s1[i] > #$C2) and ( not
                  // Armenian punctuation
                  ((s1[i] = #$D5) and ((s1[i+1] >= #$99) and (s1[i+1] < #$A0)))
                  )) then
                  begin
                    s2 := s1[i]+ s1[i+1] + s2;
                    s3 := s3 + s1[i] + s1[i+1];
                  end;
                inc( i ,2);
              end
            else
              begin
                if s1[i] < #$F0 then  // three byte
                  begin
                    if not (
                      // General punctuation
                      (s1[i] = #$E2) and ((s1[i+1]= #$80)
                      or ((s1[i+1]= #$81) and (s1[i+2]< #$B0)))
                      ) then
                      begin
                        s2 := s1[i]+ s1[i+1] + s1[i+2]+ s2;
                        s3 := s3 + s1[i] + s1[i+1] + s1[i+2];
                      end;
                    inc( i ,3);
                  end
                else
                  begin
                    s2 := s1[i]+ s1[i+1] + s1[i+2]+ s1[i+3] + s2;
                    s3 := s3 + s1[i] + s1[i+1] + s1[i+2] + s1[i+3];
                    inc( i ,4);
                  end
              end;
          end;
        end;
    end;
  if s2 <> '' then result := s2=s3 else result := false;
end;