html - 使用 perl 的 TokeParser 更改目录

Question

如何更改 TokeParser 在打开文件进行解析时显示的目录（例如，在 $htmlFileName 之前添加目录）？

my $p = HTML::TokeParser->new($htmlFileName);

Answer 1

要在 Perl 中更改目录：

chdir($dir);

perldoc说 ：

chdir EXPR
chdir FILEHANDLE
chdir DIRHANDLE
chdir   Changes the working directory to EXPR, if possible.  If EXPR is omitted, changes to the directory specified by $ENV{HOME}, if set; if not, changes to the directory specified by
        $ENV{LOGDIR}.  (Under VMS, the variable $ENV{SYS$LOGIN} is also checked, and used if it is set.)  If neither is set, "chdir" does nothing.  It returns true on success, false
        otherwise.  See the example under "die".

            On systems that support fchdir(2), you may pass a filehandle or directory handle as the argument.  On systems that don't support fchdir(2), passing handles raises an exception.

笔记

另一种解决方案是将完整路径放入$htmlFileName

Answer 2

my $p = HTML::TokeParser->new("/foo/bar/$htmlFileName")
    or die $!;