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Re: [O] [RFC] Alternative to sub/superscript regexp
From: |
Rasmus |
Subject: |
Re: [O] [RFC] Alternative to sub/superscript regexp |
Date: |
Mon, 25 Nov 2013 22:53:30 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) |
Nicolas Goaziou <address@hidden> writes:
> Hello,
>
> For the record `org-match-substring-regexp' is a variation on:
>
> "\\(\\S-\\)\\([_^]\\)\\(\\(?:\\*\\|address@hidden
> \t\r\n,:\"?<>~;./{}=()]+\\)\\)\\)"
>
> I think it is a bit convoluted and therefore difficult to predict.
Luckily this can be made less convoluted:)
> "\\(\\S-\\)\\([_^]\\)\\(\\*\\|[+-]?\\(?:\\w\\|[0-9.,\\]\\)*\\(\\w\\|[0-9]\\)\\)"
>
> That is, without braces, either an asterisk or any combination of word,
> number, dot, comma and backslash characters, which may start with either
> a plus or a minus sign but cannot end with either a dot or a comma.
Should parentheses be recognized? e.g. A₍₁₎ (A_{(1)}) is sometimes
used to denote e.g. a submatrix of A corresponding to the removal of
column 1 in A. Personally, I would mostly always wrap such stuff into
math anyway (entities being the exception), since I want it in
math-mode anyway.
> What do you think?
This proposal seems better. Thanks!
Also, it reminded me of this comic:
http://xkcd.com/1171/
–Rasmus