Re^4: Perl Parsing Based on Supplied Precedence

[protist]

in reply to Re^3: Perl Parsing Based on Supplied Precedence
in thread Perl Parsing Based on Supplied Precedence

"&&" and "and" have differing precedences. "and" is lower precedence than "&&". The same goes for "||" and "or"; "or" has lower precedence than "||". "and" actually has lower precedence than "||", as I will demonstrate.

code with "&&":

perl -e 'if(0&& 0||1){print"hello\n"}'

output:

hello

code with "and":

perl -e 'if(0and 0||1){print"hello\n"}'

(outputs nothing)

[wirito]

Yes, you are right. I meant to say:


'&&' and 'and' operator has higher precedence than '||' and 'or' respectively

English is not my first language as you can notice :)

[protist]

Ah. After I saw your precedences in your example below, I was confused because you seemed to understand haha. I will note here that I was not attempting to mirror Perl precedences in my example precedence, only create a precedence for testing purposes. Your precedence list is more Perl-like.