[ новости /+++ | форум | теги | ]

NAME

     fileparse - split a pathname into pieces

     basename - extract just the filename from a path

     dirname - extract just the directory from a path



SYNOPSIS
         use File::Basename;

         ($name,$path,$suffix) = fileparse($fullname,@suffixlist)
         fileparse_set_fstype($os_string);
         $basename = basename($fullname,@suffixlist);
         $dirname = dirname($fullname);

         ($name,$path,$suffix) = fileparse("lib/File/Basename.pm","\.pm");
         fileparse_set_fstype("VMS");
         $basename = basename("lib/File/Basename.pm",".pm");
         $dirname = dirname("lib/File/Basename.pm");




DESCRIPTION
     These routines allow you to parse file specifications into
     useful pieces using the syntax of different operating
     systems.

     fileparse_set_fstype
         You select the syntax via the routine
         fileparse_set_fstype().

         If the argument passed to it contains one of the
         substrings "VMS", "MSDOS", "MacOS", "AmigaOS" or
         "MSWin32", the file specification syntax of that
         operating system is used in future calls to fileparse(),
         basename(), and dirname().  If it contains none of these
         substrings, UNIX syntax is used.  This pattern matching
         is case-insensitive.  If you've selected VMS syntax, and
         the file specification you pass to one of these routines
         contains a "/", they assume you are using UNIX emulation
         and apply the UNIX syntax rules instead, for that
         function call only.

         If the argument passed to it contains one of the
         substrings "VMS", "MSDOS", "MacOS", "AmigaOS", "os2",
         "MSWin32" or "RISCOS", then the pattern matching for
         suffix removal is performed without regard for case,
         since those systems are not case-sensitive when opening
         existing files (though some of them preserve case on
         file creation).

         If you haven't called fileparse_set_fstype(), the syntax
         is chosen by examining the builtin variable $^O
         according to these rules.

     fileparse
         The fileparse() routine divides a file specification
         into three parts: a leading path, a file name, and a
         suffix.  The path contains everything up to and
         including the last directory separator in the input file
         specification.  The remainder of the input file
         specification is then divided into name and suffix based
         on the optional patterns you specify in @suffixlist.
         Each element of this list is interpreted as a regular
         expression, and is matched against the end of name.  If
         this succeeds, the matching portion of name is removed
         and prepended to suffix.  By proper use of @suffixlist,
         you can remove file types or versions for examination.

         You are guaranteed that if you concatenate path, name,
         and suffix together in that order, the result will
         denote the same file as the input file specification.



EXAMPLES
     Using UNIX file syntax:

         ($base,$path,$type) = fileparse('/virgil/aeneid/draft.book7',
                                         '\.book\d+');

     would yield

         $base eq 'draft'
         $path eq '/virgil/aeneid/',
         $type eq '.book7'

     Similarly, using VMS syntax:

         ($name,$dir,$type) = fileparse('Doc_Root:[Help]Rhetoric.Rnh',
                                        '\..*');

     would yield

         $name eq 'Rhetoric'
         $dir  eq 'Doc_Root:[Help]'
         $type eq '.Rnh'


     basename
          The basename() routine returns the first element of the
          list produced by calling fileparse() with the same
          arguments, except that it always quotes metacharacters
          in the given suffixes.  It is provided for programmer
          compatibility with the UNIX shell command basename(1).


     dirname
          The dirname() routine returns the directory portion of
          the input file specification.  When using VMS or MacOS
          syntax, this is identical to the second element of the
          list produced by calling fileparse() with the same
          input file specification.  (Under VMS, if there is no
          directory information in the input file specification,
          then the current default device and directory are
          returned.)  When using UNIX or MSDOS syntax, the return
          value conforms to the behavior of the UNIX shell
          command dirname(1).  This is usually the same as the
          behavior of fileparse(), but differs in some cases.
          For example, for the input file specification lib/,
          fileparse() considers the directory name to be lib/,
          while dirname() considers the directory name to be .).









Поиск по тексту MAN-ов: 


























Партнёры:










Хостинг:










Закладки на сайте

Проследить за страницей


Created 1996-2024 by Maxim Chirkov

Добавить, Поддержать, Вебмастеру