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GNU/Linux man pages

Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :

ISBN : 978-2-7460-9712-4
EAN : 9782746097124
(Editions ENI)

GNU/Linux

CentOS 4.8

i386

B::Bytecode(3pm)


B::Bytecode

B::Bytecode

NAME
SYNOPSIS
DESCRIPTION
EXAMPLE
OPTIONS
KNOWN BUGS
NOTICE
AUTHORS

NAME

B::Bytecode − Perl compiler’s bytecode backend

SYNOPSIS

perl −MO=Bytecode[,−H][,−oscript.plc] script.pl

DESCRIPTION

Compiles a Perl script into a bytecode format that could be loaded later by the ByteLoader module and executed as a regular Perl script.

EXAMPLE

    $ perl -MO=Bytecode,-H,-ohi -e ’print "hi!\n"’
    $ perl hi
    hi!

OPTIONS

−b

Save all the BEGIN blocks. Normally only BEGIN blocks that "require" other files (ex. "use Foo;") are saved.

−H

prepend a "use ByteLoader VERSION;" line to the produced bytecode.

−k

keep the syntax tree − it is stripped by default.

−ooutfile

put the bytecode in <outfile> instead of dumping it to STDOUT .

−s

scan the script for "# line .." directives and for <goto LABEL > expressions. When gotos are found keep the syntax tree.

KNOWN BUGS

"BEGIN { goto A: while 1; A: }" won’t even compile.

"?...?" and "reset" do not work as expected.

variables in "(?{ ... })" constructs are not properly scoped.

scripts that use source filters will fail miserably.

NOTICE

There are also undocumented bugs and options.

THIS CODE IS HIGHLY EXPERIMENTAL . USE AT YOUR OWN RISK .

AUTHORS

Originally written by Malcolm Beattie <mbeattie@sable.ox.ac.uk> and modified by Benjamin Stuhl <sho_pi@hotmail.com>.

Rewritten by Enache Adrian <enache@rdslink.ro>, 2003 a.d.



B::Bytecode(3pm)