JE::String(3pm) User Contributed Perl Documentation JE::String(3pm)NAME
JE::String - JavaScript string value
SYNOPSIS
use JE;
use JE::String;
$j = JE->new;
$js_str = new JE::String $j, "etetfyoyfoht";
$perl_str = $js_str->value;
$js_str->to_object; # retuns a new JE::String::Object;
DESCRIPTION
This class implements JavaScript string values for JE. The difference in use between this and JE::Object::String is that that module
implements string objects, while this module implements the primitive values.
The stringification operator is overloaded.
THE FUNCTION
There are two exportable functions, "surrogify" and "desurrogify", which convert characters outside the BMP into surrogate pairs, and
convert surrogate pairs in the string input argument into the characters they represent, respectively, and return the modified string.
E.g.:
use JE::String qw 'desurrogify surrogify';
{
no warnings 'utf8';
$str = "x{d834}x{dd2b}";
}
$str = desurrogify $str; # $str now contains "x{1d12b}" (double flat)
$str = surrogify $str; # back to "x{d834}x{dd2b}"
SEE ALSO
JE
JE::Types
JE::Object::String
perl v5.14.2 2012-03-18 JE::String(3pm)
Check Out this Related Man Page
String(3pm) User Contributed Perl Documentation String(3pm)NAME
IO::String - Emulate file interface for in-core strings
SYNOPSIS
use IO::String;
$io = IO::String->new;
$io = IO::String->new($var);
tie *IO, 'IO::String';
# read data
<$io>;
$io->getline;
read($io, $buf, 100);
# write data
print $io "string
";
$io->print(@data);
syswrite($io, $buf, 100);
select $io;
printf "Some text %s
", $str;
# seek
$pos = $io->getpos;
$io->setpos(0); # rewind
$io->seek(-30, -1);
seek($io, 0, 0);
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 posi-
tion 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 "