4 ms·

Favorite syntactic sugar feature: the /x modifier which makes the regex ignore spaces and comments, meaning you can break your regex into multiple lines and com

Favorite syntactic sugar feature: the /x modifier which makes the regex ignore spaces and comments, meaning you can break your regex into multiple lines and comment them.

staycoolboy 6y ago
Have you ever read O'Reilly's "Mastering Regular Expressions" by Friedl? He does a deep dive into the weird guts of regex modifiers. I was obsessed with that book one summer and wrote a bunch of parsers after learning incremental techniques (/o I think), and then 8 months later I could no longer remember how anything that I wrote worked. Lol me.
- cutler 6y ago
  Friedl's masterpiece was my introduction to server-side programming in 2000. I'd been doing front-end for a few years with Dreamweaver and I was looking-up it's find & replace features in "Dreamweaver Bible 8" where regexes were mentioned as the ultimate weapon. "Mastering Regular Expressions" was referenced in a footnote and fortunately my local library had a copy. My mind was blown. Regex symbols were just so powerful and the examples were mainly written in Perl which added even more power to them. The book was part of O'Reilly's Perl bookshelf so in addition to Friedl's book I bought the other Perl classics - "Programming Perl", "Perl Cookbook", "Mastering Algorithms with Perl" and "Learning Perl". With CPAN downloaded to my local disk I felt like a hitch-hiker setting out on a journey around the world needing nothing more than Perl in my backpack. Those were the days. Now I have to download 200Mb of node_modules before I can get started.
  - aduitsis 6y ago
    Recently I found some old floppy drives at the back of a drawer. I manager to find an usb disk drive, inserted the floppy, what do I find? Sure enough, Perl code I've written back in 2000! Indeed, those were the days :)
    - cutler 6y ago
      If it was back-end website code it probably used Lincoln Stein's CGI.pm module which was used everywhere though it was a bit of a beast with frequent security updates. I later progressed to CGI::Application for an app which ran a business for 12 years before I converted it to Rails. I always thought Mojolicious was a great Perl web framework but unfortunately it landed just as Rails was picking-up steam.
lizmat 6y ago
FWIW, this is the default in Raku regular expressions.
- aduitsis 6y ago
  Oh, thank you, didn't know that!
- staycoolboy 6y ago
  Raku is Perl programming language so that makes sense.

Favorite syntactic sugar feature: the /x modifier which makes the regex ignore spaces and comments, meaning you can break your regex into multiple lines and comment them.

staycoolboy 6y ago

Have you ever read O'Reilly's "Mastering Regular Expressions" by Friedl? He does a deep dive into the weird guts of regex modifiers. I was obsessed with that book one summer and wrote a bunch of parsers after learning incremental techniques (/o I think), and then 8 months later I could no longer remember how anything that I wrote worked. Lol me.

cutler 6y ago
Friedl's masterpiece was my introduction to server-side programming in 2000. I'd been doing front-end for a few years with Dreamweaver and I was looking-up it's find & replace features in "Dreamweaver Bible 8" where regexes were mentioned as the ultimate weapon. "Mastering Regular Expressions" was referenced in a footnote and fortunately my local library had a copy. My mind was blown. Regex symbols were just so powerful and the examples were mainly written in Perl which added even more power to them. The book was part of O'Reilly's Perl bookshelf so in addition to Friedl's book I bought the other Perl classics - "Programming Perl", "Perl Cookbook", "Mastering Algorithms with Perl" and "Learning Perl". With CPAN downloaded to my local disk I felt like a hitch-hiker setting out on a journey around the world needing nothing more than Perl in my backpack. Those were the days. Now I have to download 200Mb of node_modules before I can get started.
- aduitsis 6y ago
  Recently I found some old floppy drives at the back of a drawer. I manager to find an usb disk drive, inserted the floppy, what do I find? Sure enough, Perl code I've written back in 2000! Indeed, those were the days :)
  - cutler 6y ago
    If it was back-end website code it probably used Lincoln Stein's CGI.pm module which was used everywhere though it was a bit of a beast with frequent security updates. I later progressed to CGI::Application for an app which ran a business for 12 years before I converted it to Rails. I always thought Mojolicious was a great Perl web framework but unfortunately it landed just as Rails was picking-up steam.

lizmat 6y ago

FWIW, this is the default in Raku regular expressions.

aduitsis 6y ago
Oh, thank you, didn't know that!
staycoolboy 6y ago
Raku is Perl programming language so that makes sense.