Re: (2) Parsing external config file (variable interpolation in config file?)

Thanks for the suggestion, BBP. I was going to do that very thing a while back, and researched as many config file parsers as I could find.

A new twist has cropped up though. It would simplify things a lot if I could include variable names for new passwords and community strings in the external config file. Not the passwords themselves, mind you (the script prompts for and retains them in RAM). I believe the term is "variable interpolation".

Do you know if AppConfig would allow that? Or should I look at something like doing Perl code as a config file? Ideally, it would go something like this, like templating I suppose:

[SetPass]
conf t
enable pass $newen
line con 0
pass $newpass
login
line aux0
pass $newpass
login
line vty 0 4
pass $newpass
login
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    cheers,
    Don
    striving for Perl Adept
    (it's pronounced "why-bick")

Update: Hmmm... that sounds *very* interesting BoredByPolitics. /me wanders off to take a look...

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Re: Re: (2) Parsing external config file (variable interpolation in config file?) by BoredByPolitics (Scribe) on Jan 21, 2001 at 20:22 UTC
Yes! You can define 4 types of config variable - Boolean ("varname!") Scalar ("varname=s") Array ("varname=@") Hash ("varname=%") So your line `enable pass $newen` would be best handled as a hash, which would be called `enable`. `[section]` has the effect of prefixing the varname with the section name, so `login` would become `SetPass_login`. Multiple assignments to the same array or hash add further elements. Both environment varibles, and those previously defined in the config file, can be expanded as values. Take a look at the pods for AppConfig::State and AppConfig::File for more details. Overall I'm very impressed with this module - it has definately saved me alot of time with the program I'm currently writing. Pete	[reply] [d/l] [select]

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Re: Re: (2) Parsing external config file (variable interpolation in config file?)
by BoredByPolitics (Scribe) on Jan 21, 2001 at 20:22 UTC

You can define 4 types of config variable -

Boolean ("varname!")
Scalar ("varname=s")
Array ("varname=@")
Hash ("varname=%")

enable pass $newen

enable

[section] has the effect of prefixing the varname with the section name, so login would become SetPass_login.

Multiple assignments to the same array or hash add further elements.

Both environment varibles, and those previously defined in the config file, can be expanded as values.

Take a look at the pods for AppConfig::State and AppConfig::File for more details.

Overall I'm very impressed with this module - it has definately saved me alot of time with the program I'm currently writing.

Pete

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