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Etern4lCn 2005-4-10 11:08

[转载]字符串分割扩展 SplitEx

  信息来源: CSDN

  该示例演示了一个字符串扩展splitex例子,文章内含源代码。


  function SplitEx(const Str {需要拆分的文章}, Delimiters {拆分关键字,回车.?!等}: string): TStringList;
  var
  ss: WideString;
  i, St: integer;
  function IsDelimiter(const Delimiters, c: string): Boolean;
  begin //判断是否为拆分关键字
  result := StrScan(PChar(Delimiters), c[1]) <> nil;
  end;
  begin
  Result := TStringList.Create;
  with Result do
  begin
  Clear; Sorted := True; Duplicates := dupIgnore;
  end;
  if Length(Str) < 1 then exit;
  ss := Str; //双字符支持,纯英文可以去掉
  St := -1;
  for i := 1 to Length(ss) do
  if IsDelimiter(Delimiters, ss[i]) then
  if St <> -1 then
  begin
  Result.Add(Trim(Copy(ss, St, i - St)));
  St := -1;
  end
  else
  if St = -1 then St := i;
  if St <> -1 then Result.Add(Copy(ss, St, Length(Str)));
  end;

  //操作演示
  with SplitEx(Memo1.Text, &#39;,,. ?! &#39; + #13#10) do
  try
  SaveToFile(&#39;c:\temp_demo.txt&#39;);
  finally
  Free;
  end;

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