I am so frustrated, I have been reading the RegExp help for awhile, and I just don't get it. All I want to do is find out if a string is made up of a set of characters, and print either 1 or 0 (true or false).

Here is the character set: 


0-9 - all numbers
a-zA-Z - all letters
. - the decimal point
\ - backslash
/ - forward slash
- - the dash
_ - the underline
% - percent sign
$ - dollar sign
' - single quote
() - parenthesis
{} - opening and closing brackets
& - the and sign
! - the exclamation point
~ - wave
` - tick or whatever this is
@ - the at sign
# - the comment character
^ - this guy

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Any other character is NOT allowed. SO, if the string contains a character that is not allowed, then I want the match to evaluate to 1, otherwise 0. This way I can tell whether the string has any illegal characters in it.

Here is the code I have written, which doesn't do anything. :-P :-( 


my $STR1 = '///?///';
my $STR2 = 'ABC_ABC';

print "\n" . ($STR1 =~ /(\d\w.\/~-_!@#$%\^&{}\(\).'`)/);
print "\n" . ($STR2 =~ /(\d\w.\/~-_!@#$%\^&{}\(\).'`)/);

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In reply to How would you write this RegExp? by harangzsolt33

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