On Tue, Sep 04, 2001 at 04:01:26PM +0200, Yves Bastide wrote:
> On Tue, Sep 04, 2001 at 02:22:56PM +0100, Jose Abilio Oliveira Matos wrote:
> >
> > As a curiosity, did reLyX worked before?
> > I guess that if it work then we had a strange case of interaction beetween
> > BLOCK and the variable outside. Hardly what anyone would expect.
>
> BEGIN blocks are executed immediately after compilation. Variable names
> are known, but assignments in "my" constructs haven't been done yet.
>
> With the previous version of reLyX, try
> $ perl -w reLyX-1.2
> you'll get
> Use of uninitialized value in concatenation (.) or string at
> /usr/local/bin/reLyX-1.2 line 52.
>
> the uninitialized value being $mainscript...
Good point. I think you need to do
use vars qw($whatever @variables $you're_setting_in_the_BEGIN)
in the BEGIN block in order to get the vars to work. I might be wrong though
:)
> BTW (Amir I guess?) why
> #!/usr/bin/perl
> then
> $^W = 1; # same as 'perl -w'
>
> ? This disables -w in the BEGIN {}, as seen here
Good question. I don't know why we did that. My guess is that the configure
tool that writes the first line couldn't for some reason add the -w, so we
used ^W instead. However, this was all done 2 or 3 years ago, so I don't
remember.
In fact:
##########################
fermi2:~/lyx/reLyX>rlog -r1.5 reLyX.in
[snip]
File which configure turns into an executable wrapper for reLyX
----------------------------
revision 1.5
date: 1998/11/02 15:10:14; author: karger; state: Exp; lines: +3 -1
Use $^W instead of -w switch, because Jean-Marc asked me to.
###########################
Aha! JMarc, do you remember why we did this?
-Amir
