wrote a single layer of deep html document procedures for my dear-优快云博客

本文介绍了一种用于处理文件路径并进行正则表达式匹配的方法，通过遍历指定目录下的所有文件，并针对每个文件内容实施特定的链接转换逻辑。此过程包括了对文件路径的重新构造以及对文件内容中特定链接的替换。

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The following translation by Google

This procedure will be the first under the root directory of all documents loaded into the list
Through dir2list function

While (true) (
Cout << "input the root directory:" <<endl;
Cin>> tmpchr; rootdir = tmpchr;
If (! Regex_match (rootdir, Eisfolder)) continue;
Cout << "input the new root directory:" <<endl;
Cin>> tmpchr; rootdirnew_root = tmpchr;
If (! Regex_match (rootdirnew_root, Eisfolder)) continue;
Break;
)
Dir2list (rootdir);

Central to escape through each treatment
Code as follows:
For (i = 0; i <lstfile.size (); i + +)
(
Relink (lstfile [i]);
Fprintf (stdout, "% d /% d / r", i +1, lstfile.size ());
Fflush (stdout);
)

Relink the main uses regex expressions
Void relink (string path)
(
Ifstream inf; long int length, lasttimepos, lenwhatfore;
Tmp4 = path.substr (rootdir.length ());
Replace (tmp4.begin (), tmp4.end (), '/ /','-');
Rootdirnew = rootdirnew_root + tmp4;

If (! Regex_match (path, filefilter_regex))
(CopyFile (path.c_str (), rootdirnew.c_str (), false);
Return;
)
Smatch what;

Regex EUrl ( "(href = / ")(.*?)( / ")");
Std:: string:: const_iterator start, end;
Inf.clear (); strcpy(buffer,"");
Inf.open (path.c_str (), ios:: ate | ios:: in);
Length = inf.tellg ();
Inf.seekg (0, std:: ios:: beg);
Inf.read (buffer, length);
Oldctt = buffer;

Start = oldctt.begin (); end = oldctt.end ();
Lasttimepos = 0;
Newctt = ""; lenwhatfore = 0;
While (regex_search (start, end, what, EUrl)) (
If ((int) what [2]. Str () [0] == 35) / / #
(+ What.position lenwhatfore lenwhatfore = () + what [0]. Str (). Length ();)
Else if (what [2]. Str (). Compare (0,7, "http://") == 0)
(+ What.position lenwhatfore lenwhatfore = () + what [0]. Str (). Length ();)
Else
(
Lenwhatfore = lenwhatfore + what.position ();
Tmp2 = path.substr (rootdir.length ());
If (tmp2.rfind ( "/ /")! = String:: npos) tmp2 = tmp2.substr (0, tmp2.rfind ( "/ /")); else tmp2 = "";
Tmp3 = what [2]. Str ();
While (! Tmp3.compare (0,3 ,"../"))
(
Tmp2 = tmp2.substr (0, tmp2.rfind ( "/ /"));
Tmp3 = tmp3.substr (3);
If (tmp2.rfind ( "/ /") == string:: npos) (tmp2 ="";}
)
Replace (tmp3.begin (), tmp3.end (),'/','-');
Replace (tmp2.begin (), tmp2.end (), '/ /','-');
If (! Tmp2.empty ()) fulldir = tmp2 + (string )"-"+ tmp3; else fulldir = tmp3;

Newctt = newctt + oldctt.substr (lasttimepos, lenwhatfore) + what [1]. Str () + + fulldir what [3]. Str ();
Lasttimepos lenwhatfore + + = lasttimepos what [0]. Str (). Length ();
Lenwhatfore = 0;
)
Start = what [0]. Second;
)
Newctt = newctt + oldctt.substr (lasttimepos);

Ofstream outf (rootdirnew.c_str ());
Outf <<newctt.c_str ();
Inf.close ();
Outf.close ();
)