131–133 of 133 posts
Earlier quoted context omitted.
What if you want to allow users to regex search their documents?
Do it on the client side? Do it in a sandbox and have aggressive timeouts.
Not practical given a large amount of documents.
> Do it in a sandbox and have aggressive timeouts.
Sure! I was just replying to this:
> the danger of passing anything derived from user input into the TEMPLATE side of a templating engine. Why in the world would you ever do that?!?
Raku (perl6) was a chance for Larry Wall to fix some of the limitations of the perl regex syntax, as you would expect from the perl heritage, it behaves similarly. ~ > raku -e 'say "foobar" ~~ /^ +$/ ?? "yes" !! "no"' yes ~ > raku -e 'say "foo\nbar" ~~ /^ +$/ ?? "yes" !! "no"' no ~ > raku -e 'say "foo\nbar" ~~ /^^ +$$/ ?? "yes" !! "no"' yes - ^^ and $$ are the raku flavour of multiline mode - ~~ the smartmatch operat…
Perl has supported whitespace and comments in regular expressions since approximately forever. Just use the /x modifier. All that Raku did was make that flag a default. The same thing is available in many other languages. They copied it when they copied from Perl. For example Python's https://docs.python.org/3/library/re.html#flags documents that re.X, also called re.VERBOSE, does the same exact thing. The fact that…
PS. raku has added quite a lot to the regex facilities we are familiar with, not least a straight line to using them in Grammars with rule and token methods that give you control over handling of whitespace in the target
Raku (perl6) was a chance for Larry Wall to fix some of the limitations of the perl regex syntax, as you would expect from the perl heritage, it behaves similarly. ~ > raku -e 'say "foobar" ~~ /^ +$/ ?? "yes" !! "no"' yes ~ > raku -e 'say "foo\nbar" ~~ /^ +$/ ?? "yes" !! "no"' no ~ > raku -e 'say "foo\nbar" ~~ /^^ +$$/ ?? "yes" !! "no"' yes - ^^ and $$ are the raku flavour of multiline mode - ~~ the smartmatch operat…
Perl has supported whitespace and comments in regular expressions since approximately forever. Just use the /x modifier. All that Raku did was make that flag a default. The same thing is available in many other languages. They copied it when they copied from Perl. For example Python's https://docs.python.org/3/library/re.html#flags documents that re.X, also called re.VERBOSE, does the same exact thing. The fact that…