GNU/Linux |
Debian 6.0.0(Squeeze) |
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IO::InnerFile(3pm) |
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IO::InnerFile − define a file inside another file
### Read a subset of a file: $inner = IO::InnerFile−>new($fh, $start, $length); while (<$inner>) { ... }
If you have a filehandle that can seek() and tell(), then you can open an IO::InnerFile on a range of the underlying file.
new FILEHANDLE , [ START , [ LENGTH ]]
Class method, constructor. Create a new inner-file opened on the given FILEHANDLE , from bytes START to START+LENGTH . Both START and LENGTH default to 0; negative values are silently coerced to zero.
Note that FILEHANDLE must be able to seek() and tell(), in addition to whatever other methods you may desire for reading it.
set_length
LENGTH
get_length
add_length NBYTES
Instance methods. Get/set the virtual length of the inner file.
set_start START
get_start
add_start NBYTES
Instance methods. Get/set the virtual start position of the inner file.
binmode
close
flush
getc
getline
print LIST
printf LIST
read BUF , NBYTES
readline
seek OFFFSET , WHENCE
tell
write ARGS ...
Instance methods. Standard filehandle methods.
$Id: InnerFile.pm,v 1.4 2005/02/10 21:21:53 dfs Exp $
Original version by Doru Petrescu (pdoru@kappa.ro).
Documentation and by Eryq (eryq@zeegee.com).
Currently maintained by David F. Skoll (dfs@roaringpenguin.com).
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IO::InnerFile(3pm) | ![]() |