IO::InnerFile(3pm) User Contributed Perl Documentation IO::InnerFile(3pm)
NAME
IO::InnerFile - define a file inside another file
SYNOPSIS
### Read a subset of a file:
$inner = IO::InnerFile->new($fh, $start, $length);
while (<$inner>) {
...
}
DESCRIPTION
If you have a filehandle that can seek() and tell(), then you can open
an IO::InnerFile on a range of the underlying file.
PUBLIC INTERFACE
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.
VERSION
$Id: InnerFile.pm,v 1.4 2005/02/10 21:21:53 dfs Exp $
AUTHOR
Original version by Doru Petrescu (pdoru@kappa.ro).
Documentation and by Eryq (eryq@zeegee.com).
Currently maintained by Dianne Skoll (dfs@roaringpenguin.com).
perl v5.28.1 2019-02-28 IO::InnerFile(3pm)
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