• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: Why is / a metachar in regular expressions ?
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Why is / a metachar in regular expressions ?


  • Subject: Re: Why is / a metachar in regular expressions ?
  • From: Jens Alfke via Cocoa-dev <email@hidden>
  • Date: Wed, 18 Sep 2019 13:51:57 -0700


> On Sep 18, 2019, at 1:45 PM, Gabriel Zachmann via Cocoa-dev
> <email@hidden> wrote:
>
> I don't see why / is a meta character.
> It does not appear anywhere else in the documentation as metacharacter.

In some languages "/" is used as the delimiter to begin/end a regular
expression, for example in sed where the substitution command is "s/old/new/".

So perhaps the underlying regex parser ignores "/" characters at the start/end
of the regex unless they're quoted?

—Jens
_______________________________________________

Cocoa-dev mailing list (email@hidden)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

  • Follow-Ups:
    • Re: Why is / a metachar in regular expressions ?
      • From: Gabriel Zachmann via Cocoa-dev <email@hidden>
    • Re: Why is / a metachar in regular expressions ?
      • From: Rick Mann via Cocoa-dev <email@hidden>
References: 
 >Why is / a metachar in regular expressions ? (From: Gabriel Zachmann via Cocoa-dev <email@hidden>)

  • Prev by Date: Why is / a metachar in regular expressions ?
  • Next by Date: Re: Why is / a metachar in regular expressions ?
  • Previous by thread: Why is / a metachar in regular expressions ?
  • Next by thread: Re: Why is / a metachar in regular expressions ?
  • Index(es):
    • Date
    • Thread