Perl passing argument into eval

Posted by ehretf on Stack Overflow See other posts from Stack Overflow or by ehretf
Published on 2012-10-03T21:29:21Z Indexed on 2012/10/03 21:37 UTC
Read the original article Hit count: 301

Filed under:

perl

|

arguments

|

eval

I'm facing an issue using eval function.

Indeed I have some function name inside a SQL database, my goal is to execute those functions within perl (after retrieve in SQL).

Here is what I'm doing, considering that $RssSource->{$k}{Proceed} contains "&test" as a string retrieved from SQL:

my $str2 = "ABCD";
eval "$RssSource->{$k}{Proceed}";warn if $@;

sub test
{
   my $arg = shift;

   print "fct TEST -> ", $row, "\n";
}

This is working correctly and display:

fct TEST ->

However I would like to be able to pass $str2 as an argument to $RssSource->{$k}{Proceed} but I don't know how, every syntax I tried return an error:

eval "$RssSource->{$k}{Proceed}$str2"
eval "$RssSource->{$k}{Proceed}($str2)"
eval "$RssSource->{$k}{Proceed}"$str2
eval "$RssSource->{$k}{Proceed}"($str2)

May someone tell me how to properly pass an argument to the evaluated function?

Thanks a lot for your help

Regards.

Florent

© Stack Overflow or respective owner

Related posts about perl

Munin on Centos 6 - missing perl MODULE_COMPAT_5.8.8

as seen on Server Fault - Search for 'Server Fault'
I'm trying to install Munin on a new VPS through yum install munin but I keep getting an error about a missing perl module: Requires: perl(:MODULE_COMPAT_5.8.8). This is the perl version currently installed: v5.10.1. I've searched all around and still haven't found a solution for this. Here's the… >>> More
Pain removing a perl rootkit

as seen on Server Fault - Search for 'Server Fault'
So, we host a geoservice webserver thing at the office. Someone apparently broke into this box (probably via ftp or ssh), and put some kind of irc-managed rootkit thing. Now I'm trying to clean the whole thing up, I found the process pid who tries to connect via irc, but i can't figure out who's… >>> More
How To Avoid a Perl script calling an Another Perl Script

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, i am calling a perl script client.pl from a main script to capture the output of client.pl in @output. is there anyway to avoid the use of these two files so i can use the output of client.pl in main.pl itself here is my code.... main.pl ======= my @output = readpipe("client.pl"); client… >>> More
Perl :how to sort dates in perl

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, How can I sort the dates in perl. my @dates = ( "02/11/2009" , "12/20/2001" , "11/21/2010" ) ; I have above dates in my array . How can I sort those dates... ? My date format is dd/mm/YYYY. >>> More
please suggest a perl book exclusively for perl programs

as seen on Stack Overflow - Search for 'Stack Overflow'
I want tha name of a perl book for only PERL PROGRAMS. The reason behind is I want to improve my programming skill in perl >>> More

Related posts about arguments

C++ Function arguments validation (pointer vs. reference arguments)

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello everyone, What do you consider a better programming practice: passing objects as pointers or references to functions. What do you do for input validation? Thanks. >>> More
How to linebreak long string constructs ?

as seen on Stack Overflow - Search for 'Stack Overflow'
I am editing SQLite SQL statements of substantial length. How can I break these into several lines to allow comfortablt editing? const char *sql = "SELECT arguments arguments arguments arguments arguments arguments arguments arguments arguments arguments FROM a, b, WHERE condition condition condition… >>> More
"TypeError: CreateText() takes exactly 8 arguments (5 given)" with default arguments

as seen on Stack Overflow - Search for 'Stack Overflow'
def CreateText(win, text, x, y, size, font, color, style): txtObject = Text(Point(x,y), text) if size==None: txtObject.setSize(12) else: txtObject.setSize(size) if font==None: txtObject.setFace("courier") else: txtObject.setFace(font) if color==None: … >>> More
Avoiding new operator in JavaScript -- the better way

as seen on Programmers - Search for 'Programmers'
Warning: This is a long post. Let's keep it simple. I want to avoid having to prefix the new operator every time I call a constructor in JavaScript. This is because I tend to forget it, and my code screws up badly. The simple way around this is this... function Make(x) { if ( !(this instanceof… >>> More
Writting this Bash Script to accept Arguments?

as seen on Super User - Search for 'Super User'
How would I go about converting this bash script: mkdir /store/sftp/%USERNAME% sudo useradd -d /incoming %USERNAME% sudo passwd %USERNAME% ## Password needs to be typed or passed in here sudo usermod -g sftp %USERNAME% sudo usermod -s /bin/false %USERNAME% sudo chmod 755 /store/sftp/%USERNAME% sudo… >>> More