1DirHandle(3pm) Perl Programmers Reference Guide DirHandle(3pm)
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6 DirHandle - (obsolete) supply object methods for directory handles
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9 # recommended approach since Perl 5.6: do not use DirHandle
10 if (opendir my $d, '.') {
11 while (readdir $d) { something($_); }
12 rewind $d;
13 while (readdir $d) { something_else($_); }
14 }
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16 # how you would use this module if you were going to
17 use DirHandle;
18 if (my $d = DirHandle->new(".")) {
19 while (defined($_ = $d->read)) { something($_); }
20 $d->rewind;
21 while (defined($_ = $d->read)) { something_else($_); }
22 }
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25 There is no reason to use this module nowadays.
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27 The "DirHandle" method provide an alternative interface to the
28 opendir(), closedir(), readdir(), and rewinddir() functions.
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30 Up to Perl 5.5, opendir() could not autovivify a directory handle from
31 "undef", so using a lexical handle required using a function from
32 Symbol to create an anonymous glob, which took a separate step.
33 "DirHandle" encapsulates this, which allowed cleaner code than
34 opendir(). Since Perl 5.6, opendir() alone has been all you need for
35 lexical handles.
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39perl v5.34.0 2021-10-18 DirHandle(3pm)