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perl use property file for variables

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# 1  
Old 06-24-2010
perl use property file for variables
if I have a file that contains variables. How do I assign them in a script.

file
p=c
e=g

Thanks
# 2  
Old 06-24-2010
do you want to make those assignments in the file as perl variables? if so id' do this:

Code:
open(F,'properties') or die "failed to open file $!\n";
while (<F>){
   ($name,$val)=m/(\w+)\s*=(.+)/;
   $properties{$name}=$val;
}
close(F);

after this in your script the variable %properties wil be a hash with the name/value pairs in your file, so you can use it like:

print $properties{'a'}."\n";

is it what you want?
# 3  
Old 06-24-2010
Another approach might be to use of the many configuration file parsing modules that are available for Perl

Suppose you have a configuration fille (demo.cfg) containing
Code:
col=80
line=25

The following Perl script:
Code:
#!/usr/bin/perl

use ConfigReader::Simple;

my $config = ConfigReader::Simple->new("demo.cfg");

print "Line: ", $config->get("line"), "\n";
print "Col: ", $config->get("col"), "\n";

will output the values for both col and line:
Code:
Line: 25
Col: 80

# 4  
Old 06-24-2010
Quote:
Originally Posted by rugdog
do you want to make those assignments in the file as perl variables? if so id' do this:

Code:
open(F,'properties') or die "failed to open file $!\n";
while (<F>){
   ($name,$val)=m/(\w+)\s*=(.+)/;
   $properties{$name}=$val;
}
close(F);

after this in your script the variable %properties wil be a hash with the name/value pairs in your file, so you can use it like:

print $properties{'a'}."\n";

is it what you want?
what I needed thanks
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