1IO::InnerFile(3) User Contributed Perl Documentation IO::InnerFile(3)
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6 IO::InnerFile - define a file inside another file
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9 ### Read a subset of a file:
10 $inner = IO::InnerFile->new($fh, $start, $length);
11 while (<$inner>) {
12 ...
13 }
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16 If you have a filehandle that can seek() and tell(), then you can open
17 an IO::InnerFile on a range of the underlying file.
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20 new FILEHANDLE, [START, [LENGTH]]
21 Class method, constructor. Create a new inner-file opened on the
22 given FILEHANDLE, from bytes START to START+LENGTH. Both START and
23 LENGTH default to 0; negative values are silently coerced to zero.
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25 Note that FILEHANDLE must be able to seek() and tell(), in addition
26 to whatever other methods you may desire for reading it.
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28 set_length LENGTH
29 get_length
30 add_length NBYTES
31 Instance methods. Get/set the virtual length of the inner file.
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33 set_start START
34 get_start
35 add_start NBYTES
36 Instance methods. Get/set the virtual start position of the inner
37 file.
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39 binmode
40 close
41 flush
42 getc
43 getline
44 print LIST
45 printf LIST
46 read BUF, NBYTES
47 readline
48 seek OFFFSET, WHENCE
49 tell
50 write ARGS...
51 Instance methods. Standard filehandle methods.
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54 $Id: InnerFile.pm,v 1.4 2005/02/10 21:21:53 dfs Exp $
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57 Original version by Doru Petrescu (pdoru@kappa.ro).
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59 Documentation and by Eryq (eryq@zeegee.com).
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61 Currently maintained by Dianne Skoll (dfs@roaringpenguin.com).
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65perl v5.28.0 2015-04-22 IO::InnerFile(3)