From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nick Dokos <nicholas.dokos@hp.com>
Subject: Re: Bug: named columns in tables not working if name contains "_"
Date: Tue, 23 Aug 2011 10:32:05 -0400
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In-Reply-To: Message from Carsten Dominik <carsten.dominik@gmail.com> of "Tue\,
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To: Carsten Dominik <carsten.dominik@gmail.com>
Cc: =?us-ascii?Q?=3D=3Fus-ascii=3FQ=3F=3D3D=3D3FISO-8859-1=3D3FQ=3D3FAndr?= =?us-ascii?Q?=3D3DE1s=3D5FMajor=3D3F=3D3D=3F=3D?= <andras.g.major@gmail.com>, nicholas.dokos@hp.com, emacs-orgmode <emacs-orgmode@gnu.org>

Carsten Dominik <carsten.dominik@gmail.com> wrote:

>=20
> On Aug 23, 2011, at 3:53 PM, Nick Dokos wrote:
>=20
> > Andr=C3=A1s Major <andras.g.major@gmail.com> wrote:
> >=20
> >=20
> >> Yet another one I just stumbled across: if I create a table and use
> >> "!" in the first column to assign names to the columns, I can only
> >> reference those columns by name in #+TBLFM: if the names don't contain
> >> a "_" character.  This isn't mentioned in the docs and shouldn't be
> >> so, IMHO.  I haven't checked for other common characters that are
> >> prohibited, but the "_" bites me quite a bit.
> >>=20
> >=20
> > Try adding an underscore to the regexp on line 2179 of org-table.el -
> > something like this (untested):
> >=20
> >          ...
> > 	  (if (string-match "^[a-zA-Z][a-zA-Z0-9_]*$" name)
> > 	      (push (cons name (int-to-string cnt)) org-table-column-names))))
> >=20
> >=20
> > The only characters permitted are alphanumerics. That can probably be
> > easily relaxed.
>=20
> Hi Nick, I don't think it can be easily relaxed.  Many other characters a=
re
> operators in Calc and would lead to confusion.
>=20

So add more syntax: formulas can use {this+is-a*/strange\@name}.

OK, ok - just kidding.

Thanks,
Nick

PS. This is a paraphrase of the indirection principle: Any problem can
    be solved by adding yet another layer of syntax...