Re: [sqlite] regexp.c

[Philip Bennefall]

  - Original Message - 
  From: Richard Hipp 
  To: phi...@blastbay.com ; General Discussion of SQLite Database 
  Sent: Friday, June 07, 2013 1:14 PM
  Subject: Re: [sqlite] regexp.c





  On Fri, Jun 7, 2013 at 5:30 AM, Philip Bennefall <phi...@blastbay.com> wrote:

Hello all,

I was having a quick look at the extensions provided in ext/misc in the 
source tree, and I am pleasantly surprised at the number of useful things that 
I found in there that I didn't know about. I was wondering about the regular 
expression parser in particular. Does it support capture groups? The source 
seems to indicate no, but I just wanted to make sure.


  Capture groups are not supported by the regexp.c implementation in ext/misc.  
On the other hand, that means that run-time is guaranteed linear in the size of 
the input.

  Thanks, Richard. That does make sense. On another note, generally how well 
tested are these extensions? Should I assume that since they're not part of the 
SqLite amalgamation, they aren't as extensively tested and maintained as the 
rest of SqLite's codebase?

  Kind regards,

  Philip Bennefall
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Re: [sqlite] regexp.c

[Richard Hipp]

On Fri, Jun 7, 2013 at 5:30 AM, Philip Bennefall wrote:

> Hello all,
>
> I was having a quick look at the extensions provided in ext/misc in the
> source tree, and I am pleasantly surprised at the number of useful things
> that I found in there that I didn't know about. I was wondering about the
> regular expression parser in particular. Does it support capture groups?
> The source seems to indicate no, but I just wanted to make sure.
>

Capture groups are not supported by the regexp.c implementation in
ext/misc.  On the other hand, that means that run-time is guaranteed linear
in the size of the input.

-- 
D. Richard Hipp
d...@sqlite.org
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[sqlite] regexp.c

[Philip Bennefall]

Hello all,

I was having a quick look at the extensions provided in ext/misc in the 
source tree, and I am pleasantly surprised at the number of useful things 
that I found in there that I didn't know about. I was wondering about the 
regular expression parser in particular. Does it support capture groups? The 
source seems to indicate no, but I just wanted to make sure.


Kind regards,

Philip Bennefall 


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