Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!rbj
From: rbj@uunet.UU.NET (Root Boy Jim)
Newsgroups: comp.lang.perl
Subject: Re: First impressions of new perl user (code, questions, ...)
Message-ID: <126310@uunet.UU.NET>
Date: 22 Mar 91 22:28:03 GMT
References: <MAYER.91Mar21141900@porky.sono.uucp>
Organization: UUNET Communications Services, Falls Church, VA
Lines: 56

In article <MAYER.91Mar21141900@porky.sono.uucp> mayer@sono.uucp (Ronald &) writes:
? I'm trying to make a perl script which will convert strings into 
? case-insensitive regular expressions for sed [don't ask why :-(]
? for example: "$include (asdf)"  gets converted into:
? "$[iI][nN][cC][lL][uU][dD][eE] ([aA][sS][dD][fF])"
? The only way I was able to do this in sed was to use one line for
? each character: /[aA]/s//[aA]/g .....

If I wanted to do case insensitive matching, I would first
translate both my pattern and string into lower case, then
do regular matching. Sed can do this. Use y/A-Z/a-z/.
Actually I think you have to spell out the whole string.

?============================
?A question (or request for a new feature):
?
?Is there any function which will show all my defined variables (and/or
?subroutins and/or open files).  I'm not sure it's really useful, but I
?was thinking an interesting interactive perl application would be a
?calculator which would convert algebraic input into perl-commands and
?eval them.  Is this practical?  Trying to set this up I wanted a
?function to show all defined variables.

There is a way to get your defined variables. Look at dumpvar.pl.
As for opened files, keep track of them yourself.

?============================
?A random idea (not really a request; just something I was thinking about):
?
?In the unpack function do "A" and "a" mean the same thing?

Obviously not.

?If not, are the differences documented (not in my man page).

To be honest, I couldn't quote you the exact differences,
chapter and verse. I don't care. I will figure it out
when I need to, and you should do the same. Hey kids, it's
time to play, "Ask the Computer".

?============================
?perl examples source question:
?
?I notice that "The code examples contained [in the Camel book] are
?available via anonymous FTP from uunet.uu.net in
?nutshell/perl/perl.tar.Z for your retrieval."  Are they also available
?through uucp?

Yes. More precisely, they live in ~ftp/nutshell/perl/perl.tar.Z.
This is true whether anonymous or not, FTP or UUCP. We do support
anonymous UUCP, but it costs you 40 cents per minute.

Please do your FTP's during *DAYTIME* hours when our load is low.
-- 
		[rbj@uunet 1] stty sane
		unknown mode: sane