Re^3: become another via exec in dispatch table

Again, "does not work" is not an adequate description. Specifically, you get:

ole
syntax error at -e line 1, at EOF
Execution of -e aborted due to compilation errors.
[download]

So lets look at the code:

print map {qq!\t$_\n!}
[download]

Where's map's list of values?

Comment on Re^3: become another via exec in dispatch table Select or Download Code

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Re^4: become another via exec in dispatch table by Discipulus (Canon) on Jan 31, 2012 at 12:36 UTC
ok i was so stupid to cut and paste your suggestion in my code.. i speak too generic like in 'does not work'.. maybe my original idea is stupid/unpractical/bogus prone/or worst... but really no one understand what i'm asking for? I have changed the dispatch table in this way: my %cmds = ( a => sub {exec 'perl', '-e', 'print map {qq!\t$_\n!} @ARG +V', @_}, b => sub {exec 'perl', '-e', 'print map {qq!\t$_\n!} @ARG +V', @_}, b1 => sub {exec 'perl', '-e', 'print map {qq!\t$_\n!} @_' +, @_}, b2 => sub {exec 'perl', '-e', 'print qq!@ARGV!', @_}, c => sub {my $res; foreach (@ARGV) {$res+=$_}; print $res +;exit 0 }, ); ## # calling with --key a b b1 b2 like in # dispatch.pl --execute --key a A B C # everytime produces: # #ole #--a blank line-- #only the c key runs as expected (to me) but not use exec #c:\SCRIPTS>dispatch.pl --execute --key c 1 2 3 4 5 #ole #15 #c:\SCRIPTS> #key c in a pipeline produces: #c:\SCRIPTS>echo 1 2 3 \| dispatch.pl --execute --key c #ole #Use of uninitialized value $res in print at c:\SCRIPTS\code-dispatch. +pl line 16. c:\SCRIPTS> [download] sorry about my errors in any case thanks for the attention L* there are no rules, there are no thumbs..	[reply] [d/l]
Re^5: become another via exec in dispatch table by ikegami (Patriarch) on Jan 31, 2012 at 21:18 UTC
Adding `@ARGV`: good. (Well, at least for when you want to get the data from command line arguments.) Undoing the fixes I previously mentioned: bad.	[reply] [d/l]
Re^5: become another via exec in dispatch table by ikegami (Patriarch) on Jan 31, 2012 at 21:24 UTC
ug, it's Windows. That complicates things. Using the mutli-arg form of `exec`, while normally simpler, becomes tricky. Best avoid it. `exec 'perl', '-e', 'program', @args` [download] should be changed to `exec qq{perl -e"program" @quoted_args}` [download]	[reply] [d/l] [select]