| Name : perl-IO-String
| |
| Version : 1.08
| Vendor : obs://build_opensuse_org/devel:languages:perl
|
| Release : lp154.1.1
| Date : 2023-01-27 16:41:08
|
| Group : Development/Libraries/Perl
| Source RPM : perl-IO-String-1.08-lp154.1.1.src.rpm
|
| Size : 0.02 MB
| |
| Packager : https://www_suse_com/
| |
| Summary : Emulate file interface for in-core strings
|
Description :
The \'IO::String\' module provides the \'IO::File\' interface for in-core
strings. An \'IO::String\' object can be attached to a string, and makes it
possible to use the normal file operations for reading or writing data, as
well as for seeking to various locations of the string. This is useful when
you want to use a library module that only provides an interface to file
handles on data that you have in a string variable.
Note that perl-5.8 and better has built-in support for \"in memory\" files,
which are set up by passing a reference instead of a filename to the open()
call. The reason for using this module is that it makes the code backwards
compatible with older versions of Perl.
The \'IO::String\' module provides an interface compatible with \'IO::File\' as
distributed with _IO-1.20_, but the following methods are not available:
new_from_fd, fdopen, format_write, format_page_number,
format_lines_per_page, format_lines_left, format_name, format_top_name.
The following methods are specific to the \'IO::String\' class:
* $io = IO::String->new
* $io = IO::String->new( $string )
The constructor returns a newly-created \'IO::String\' object. It takes an
optional argument, which is the string to read from or write into. If no
$string argument is given, then an internal buffer (initially empty) is
allocated.
The \'IO::String\' object returned is tied to itself. This means that you can
use most Perl I/O built-ins on it too: readline, < >, getc, print, printf,
syswrite, sysread, close.
* $io->open
* $io->open( $string )
Attaches an existing IO::String object to some other $string, or allocates
a new internal buffer (if no argument is given). The position is reset to
0.
* $io->string_ref
Returns a reference to the string that is attached to the \'IO::String\'
object. Most useful when you let the \'IO::String\' create an internal buffer
to write into.
* $io->pad
* $io->pad( $char )
Specifies the padding to use if the string is extended by either the seek()
or truncate() methods. It is a single character and defaults to \"\\0\".
* $io->pos
* $io->pos( $newpos )
Yet another interface for reading and setting the current read/write
position within the string (the normal getpos/setpos/tell/seek methods are
also available). The pos() method always returns the old position, and if
you pass it an argument it sets the new position.
There is (deliberately) a difference between the setpos() and seek()
methods in that seek() extends the string (with the specified padding) if
you go to a location past the end, whereas setpos() just snaps back to the
end. If truncate() is used to extend the string, then it works as seek().
|
RPM found in directory: /packages/linux-pbone/ftp5.gwdg.de/pub/opensuse/repositories/devel:/languages:/perl:/CPAN-I/15.4/noarch |
