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From: Carsten Dominik <carsten.dominik@gmail.com>
To: Pavel Panchekha <me@pavpanchekha.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: Entities Parsing Code
Date: Sat, 8 Oct 2011 18:06:27 +0200	[thread overview]
Message-ID: <F6E24404-5328-4A2F-9555-AD31E079123A@gmail.com> (raw)
In-Reply-To: <CAE4=OQ-j50gA+WwwoRO0X6GjK504XyS0H3Ry3u7MBgqV8sp5yA@mail.gmail.com>

On 19.9.2011, at 23:39, Pavel Panchekha wrote:

> I've been noticing that the org-pretty-entities code incorrectly lexes numbers as part of TeX command names; for example, if I type $\sim2n^2$, the \sim will not be replaced with a ~ because the 2 is lexed as part of the command name.  This is incorrect; in TeX, numbers are not legal parts of a command name.

Hi Pavel, this is on purpose, in order to support names like \frac12.  Most, but not all entity names are strict TeX.  You can work around this by inserting spaces - \sim2n^2 looks
quite unreadable to me anyway - I would, also in a TeX file, always write it like 
\sim 2 n^2

- Carsten

> Here's a patch that fixes the issue:
> diff --git a/lisp/org.el b/lisp/org.el
> index 73b1073..0db5a0b 100644
> --- a/lisp/org.el
> +++ b/lisp/org.el
> @@ -5735,7 +5735,7 @@ needs to be inserted at a specific position in the font-
>      (when org-pretty-entities
>        (catch 'match
>         (while (re-search-forward
> -               "\\\\\\([a-zA-Z][a-zA-Z0-9]*\\)\\($\\|[^[:alnum:]\n]\\)"
> +               "\\\\\\([a-zA-Z]+\\)\\($\\|[^[:alpha:]\n]\\)"
>                 limit t)
>           (if (and (not (org-in-indented-comment-line))
>                    (setq ee (org-entity-get (match-string 1)))
> -- 
> - Pavel Panchekha

      reply	other threads:[~2011-10-08 16:06 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-19 21:39 Entities Parsing Code Pavel Panchekha
2011-10-08 16:06 ` Carsten Dominik [this message]

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