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Missing SRE component in BNF
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- To: SRFI-115 discussion list <srfi-115@xxxxxxxxxxxxxxxxx>
- Subject: Missing SRE component in BNF
- From: Takashi Kato <ktakashi@xxxxxxxxx>
- Date: Wed, 02 Jul 2014 21:19:09 +0200
- Delivered-to: srfi-115@xxxxxxxxxxxxxxxxx
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Hi there,
In SRE Syntax section, there are bunch of missing items in BNF but
described in below section. Following items are missing. (Not sure
if these are complete set, though.)
- English names of 'Repeating patterns'
- backref
- English names of 'Non-Greedy Patterns'
Followings are charset
- char-range
- complement
- difference
BTW, why do 'look-ahead', 'look-behind', 'neg-look-ahead' and 'neg-look-
behind' not have short name like '?=', '?!', '?<-' and '?<!'? Not sure
how often these are used but it might be convenient to have short names.
Cheers,
--
_/_/
Takashi Kato
E-mail: ktakashi@xxxxxxxxx