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Windows:如何将文件规范化到特殊文件夹?

roaming-profile roaming canonicalization special-folders windows

6

Ian Boyd · 技术社区 · 14 年前

我想为用户保留一些文件名(例如最近的文件)。

让我们使用六个示例文件:

c:\Documents & Settings\Ian\My Documents\Budget.xls
c:\Documents & Settings\Ian\My Documents\My Pictures\Daughter's Winning Goal.jpg
c:\Documents & Settings\Ian\Application Data\uTorrent
c:\Documents & Settings\All Users\Application Data\Consonto\SpellcheckDictionary.dat
c:\Develop\readme.txt
c:\Program Files\Adobe\Reader\WhatsNew.txt

我想成为一个好的开发人员,并转换这些硬编码 相对的 特殊文件夹 :

%CSIDL_Personal%\Budget.xls
%CSIDL_MyPictures%\Daughter's Winning Goal.jpg
%CSIDL_AppData%\uTorrent
%CSIDL_Common_AppData%\Consonto\SpellcheckDictionary.dat
c:\develope\readme.txt文件
%CSIDL_Program_Files%\Adobe\Reader\WhatsNew.txt

c:\文档和;设置\Ian\My Documents\My Pictures\Daughter's Winning Goal.jpg
%CSIDL_Profile%\My Documents\My Pictures\Daughter's Winning Goal.jpg
%CSIDL_Personal%\My Pictures\Daughter's Winning Goal.jpg
%CSIDL\u MyPictures%\女儿的制胜球.jpg

我的照片 已存储 在里面 My Documents :

%CSIDL_Profile%\My Documents
%CSIDL_Profile%\My Documents\My Pictures

%CSIDL_Profile%\Documents
%CSIDL_Profile%\Pictures

注: %CSIDL_xxx%\filename.ext Windows不会扩展这些关键字用它来问这个问题以其他方式存储这些项目,也许作为 CSIDL 起源
 CSIDL_Personal         \Budget.xls
 CSIDL_MyPictures       \Daughter's Winning Goal.jpg
 CSIDL_AppData          \uTorrent
 CSIDL_Common_AppData   \Consonto\SpellcheckDictionary.dat
 -1                     c:\Develop\readme.txt   (-1, since 0 is a valid csidl)
 CSIDL_Program_Files    \Adobe\Reader\WhatsNew.txt

问题是,如何尽可能多地使用与规范特殊文件夹相关的路径?

我在想:

void CanonicalizeSpecialPath(String path, ref CSLID cslid, ref String relativePath)
{
   return "todo";
}

另请参见

2 回复 | 直到 14 年前

1

2

dguaraglia 14 年前

我想您可以找到CSIDL如何映射到路径(使用 SHGetKnownFolderPath ),为它们建立一个反向字典,然后检查要存储的路径的开头是否与字典中的任何键匹配,然后删除开头并存储匹配的CSIDL。

2

Ian Boyd 14 年前

function CanonicalizeSpecialPath(const path: string): string;
var
    s: string;
    BestPrefix: string;
    BestCSIDL: Integer;
    i: Integer;
begin
    BestPrefix := ''; //Start with no csidl being the one
    BestCSIDL := 0;

    //Iterate over the csidls i know about today for Windows XP.    
    for i := Low(csidls) to High(csidls) do
    begin
       //Get the path of this csidl. If the OS doesn't understand it, it returns blank
       s := GetSpecialFolderPath(0, i, False);
       if s = '' then
          Continue;

       //Don't do a string search unless this candidate is larger than what we have
       if (BestPrefix='') or (Length(s) > Length(BestPrefix)) then
       begin
          //The special path must be at the start of our string
          if Pos(s, Path) = 1 then //1=start
          begin
             //This is the best csidl we have so far
             BestPrefix := s;
             BestCSIDL := i;
          end;
       end;
    end;

    //If we found nothing useful, then return the original string
    if BestPrefix = '' then
    begin
       Result := Path;
       Exit;
    end;

    {
       Return the canonicalized path as pseudo-environment string, e.g.:

           %CSIDL_PERSONAL%\4th quarter.xls
    }
    Result := '%'+CsidlToStr(BestCSIDL)+'%'+Copy(Path, Length(BestPrefix)+1, MaxInt);
end;

然后有一个函数“扩展”特殊的环境关键字:

function ExpandSpecialPath(const path: string): string;
begin
   ...
end;

%CSIDL_PERSONAL%\4th quarter.xls

进入之内

\\RoamingProfileServ\Users\ian\My Documents\4th quarter.xls