CGI-Compile
view release on metacpan or search on metacpan
METHODS
new
Does not need to be called, you only need to call it if you want to set
your own namespace_root for the generated packages into which the CGIs
are compiled into.
Otherwise you can just call "compile" as a class method and the object
will be instantiated with a namespace_root of CGI::Compile::ROOT.
You can also set return_exit_val, see "RETURN CODE" for details.
Example:
my $compiler = CGI::Compile->new(namespace_root => 'My::CGIs');
my $cgi = $compiler->compile('/var/www/cgi-bin/my.cgi');
compile
Takes either a path to a perl CGI script or a source code and some
other optional parameters and wraps it into a coderef for execution.
Can be called as either a class or instance method, see "new" above.
Parameters:
* $cgi_script
Path to perl CGI script file or a scalar reference that contains the
source code of CGI script, required.
* $package
Optional, package to install the script into, defaults to the path
parts of the script joined with _, and all special characters
converted to _%2x, prepended with CGI::Compile::ROOT::.
E.g.:
/var/www/cgi-bin/foo.cgi
becomes:
CGI::Compile::ROOT::var_www_cgi_2dbin_foo_2ecgi
Returns:
* $coderef
$cgi_script or $$code compiled to coderef.
SCRIPT ENVIRONMENT
ARGUMENTS
Things like the query string and form data should generally be in the
appropriate environment variables that things like CGI expect.
You can also pass arguments to the generated coderef, they will be
locally aliased to @_ and @ARGV.
BEGIN and END blocks
BEGIN blocks are called once when the script is compiled. END blocks
are called when the Perl interpreter is unloaded.
This may cause surprising effects. Suppose, for instance, a script that
runs in a forking web server and is loaded in the parent process. END
blocks will be called once for each worker process and another time for
the parent process while BEGIN blocks are called only by the parent
process.
%SIG
The %SIG hash is preserved meaning the script can change signal
handlers at will. The next invocation gets a pristine %SIG again.
exit and exceptions
Calls to exit are intercepted and converted into exceptions. When the
script calls exit 19 and exception is thrown and $@ contains a
reference pointing to the array
["EXIT\n", 19]
Naturally, "$^S" in perlvar (exceptions being caught) is always true
during script runtime.
If you really want to exit the process call CORE::exit or set
$CGI::Compile::USE_REAL_EXIT to true before calling exit:
$CGI::Compile::USE_REAL_EXIT = 1;
exit 19;
Other exceptions are propagated out of the generated coderef. The
coderef's caller is responsible to catch them or the process will exit.
Return Code
The generated coderef's exit value is either the parameter that was
passed to exit or the value of the last statement of the script. The
return code is converted into an integer.
On a 0 exit, the coderef will return 0.
On an explicit non-zero exit, by default an exception will be thrown of
the form:
exited nonzero: <n>
where n is the exit value.
This only happens for an actual call to "exit" in perfunc, not if the
last statement value is non-zero, which will just be returned from the
coderef.
If you would prefer that explicit non-zero exit values are returned,
rather than thrown, pass:
return_exit_val => 1
( run in 1.758 second using v1.01-cache-2.11-cpan-97f6503c9c8 )