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BEGIN { @ARGV or @ARGV=qw(A B C) }
$Heading='MENU CITY';
# Code generated by Shell::POSIX::Select v0.09, by tim(AT)TeachMePerl.com
# NOTA BENE: Line 1 of this segment must start with {, so user can LABEL it
{ # **** NEW WRAPPER SCOPE FOR SELECTLOOP #1 ****
$Shell::POSIX::Select::DEBUG > 1 and 1 == 1 and
warn "LINE NUMBER FOR START OF USER CODE_BLOCK IS: ", __LINE__, "\n";
_SEL_LOOP1: { # **** NEW SCOPE FOR SELECTLOOP #1 ****
# critical for values's contents to be resolved in user's scope
local @Shell::POSIX::Select::looplist=(@ARGV);
local $Shell::POSIX::Select::num_values=@Shell::POSIX::Select::looplist;
$Shell::POSIX::Select::DEBUG > 4 and do {
warn "ARRAY VALUES ARE: @Shell::POSIX::Select::looplist\n";
warn "NUM VALUES is $Shell::POSIX::Select::num_values\n";
warn "user-program debug level is $Shell::POSIX::Select::U_WARN\n";
};
; # NO DECLARATION OF LOOP-VAR REQUESTED # loop-var declaration appears here
;
local (
$Shell::POSIX::Select::Prompt[1],
$Shell::POSIX::Select::menu
) =
Shell::POSIX::Select::make_menu(
$Shell::POSIX::Select::Heading || "",
$Shell::POSIX::Select::Prompt || "" , # Might be overridden in make_menu
@Shell::POSIX::Select::looplist
);
# no point in prompting a pipe!
local $Shell::POSIX::Select::do_prompt[1] = (-t) ? 1 : 0 ;
0 > 2 and warn "do_prompt is $Shell::POSIX::Select::do_prompt[1]\n";
if ( defined $Shell::POSIX::Select::menu ) { # No list, no iterations!
while (1) { # for repeating prompt for selections
# localize, so I don't have to reset for
# outer loop on exit from inner
local ($Reply);
while (1) { # for validating user's input
local $Shell::POSIX::Select::bad = 0;
# local decl suppresses newline on prompt when -l switch turned on
{
local $\;
if ($Shell::POSIX::Select::do_prompt[1]) {
# When transferring from INNER to OUTER loop,
# extra NL before prompt is visually desirable
if ( $Shell::POSIX::Select::_extra_nl) {
print STDERR "\n\n";
$Shell::POSIX::Select::_extra_nl=0;
}
print STDERR
"$Shell::POSIX::Select::menu\n$Shell::POSIX::Select::Prompt[1] ";
}
}
# $Shell::POSIX::Select::do_prompt=0;
# constant prompting depends on style
$Shell::POSIX::Select::do_prompt[1]= 0;
if ( $Shell::POSIX::Select::dump_data ) {
$Reply = undef;
# dump filtered source for comparison against expected
print STDERR "copacetic
"; # ensure some output, and flush pending
exit 222; # code for graceful, expected, early exit
}
else {
# $^W=0;
# warn "Waiting for input";
$Eof=0;
$Reply = <STDIN>;
# warn "Got input";
# $^W=1;
if ( !defined( $Reply ) ) {
defined "" and "" ne "" and print STDERR "";
# need to undef loop var; user may check it!
undef $var;
# last Shell::POSIX::Select::_SEL_LOOP1; # Syntax error!
# If returning to outer loop, show the prompt for it
# warn "User hit ^D";
if ( 1 > 1 and -t ) { # reset prompting for outer loop
$Shell::POSIX::Select::do_prompt[1-1] = 1; $Shell::POSIX::Select::_extra_nl=1;
}
0 > 2 and warn "Lasting out of _SEL_LOOP1\n";
$Eof=1;
last _SEL_LOOP1;
}
!defined $Reply and die "REPLY accessed, while undefined";
chomp $Reply;
# undo emboldening of user input
defined "" and "" ne "" and print STDERR "";
#print STDERR "$Shell::POSIX::Select::menu\n$Shell::POSIX::Select::Prompt ";
if ( $Reply eq "" ) { # interpreted as re-print menu request
# Empty input is legit, means redisplay menu
$Shell::POSIX::Select::U_WARN > 1 and warn "\tINPUT IS: empty\n";
$Shell::POSIX::Select::bad = $Shell::POSIX::Select::do_prompt[1] = 1;
}
elsif ( $Reply =~ /\D/ ) { # shouldn't be any non-digit!
$Shell::POSIX::Select::U_WARN > 0
and warn "\tINPUT CONTAINS NON-DIGIT: '$Reply'\n";
$Shell::POSIX::Select::bad = 1; # Korn and Bash shell just ignore this case
}
elsif ( $Reply < 1 or $Reply > $Shell::POSIX::Select::num_values ) {
$Shell::POSIX::Select::U_WARN > 0
and warn
"\t'$Reply' IS NOT IN RANGE: 1 - $Shell::POSIX::Select::num_values\n";
$Shell::POSIX::Select::bad = 1; # Korn and Bash shell just ignore this case
}
# warn "BAD is now: $Shell::POSIX::Select::bad";
$Shell::POSIX::Select::bad or
0 > 2 and warn "About to last out of Reply Validator Loop
";
$Shell::POSIX::Select::bad or last; # REPLY VALIDATOR EXITED HERE
} # if for validating user input
} # infinite while for validating user input
$var = $Shell::POSIX::Select::looplist[$Reply - 1]; # set users' variable
# USER'S LOOP-BLOCK BELOW
print "$var\n";;
# USER'S LOOP-BLOCK ABOVE
# Making sure there's colon (maybe
# even two) after codestring above,
# in case user omitted after last
# statement in block. I might add
# another statement below it someday!
0 > 2 and warn "At end of prompt-repeating loop
";
} # infinite while for repeating collection of selections
0 and warn "BEYOND end of prompt-repeating loop
";
} # endif (defined $Shell::POSIX::Select::menu)
else {
$Shell::POSIX::Select::DEBUG > 0 and warn "Shell::POSIX::Select: Select Loop #1 has no list, so no iterations\n";
if ( $Shell::POSIX::Select::dump_data ) {
$Reply = undef;
# dump filtered source for comparison against expected
print STDERR "copacetic
"; # ensure some output, and flush pending
exit 222; # code for graceful, expected, early exit
}
}
# return omitted above, to get last expression's value
# returned automatically, just like shell's version
} # **** END NEW SCOPE FOR SELECTLOOP #1 ****
} # **** END WRAPPER SCOPE FOR SELECTLOOP #1 ****
# vi:ts=2 sw=2:
|
