bug#21434: Re: bug#21434: BUG Report: "mark-sexp" function disable.

[赵瑞昌]

Hi, Tassilo,

Thanks for your reply.
I have updated the emacs to 24.5.1, and installed auctex 11.88.8 by 
`package-list-packages'.
however, the problem seems still exist:
when `C-M-@' (mark-sexp) at the beginning of a `\begin{...', only `\begin' 
canbe marked, instead of the whole env.
And also the `forward/backward-sexp' can only effect to the `\begin'.

Would you have any other suggestions? 
Thanks again!

> -原始邮件-
> 发件人: "Tassilo Horn" 
> 发送时间: 2015年9月8日 星期二
> 收件人: "赵瑞昌" 
> 抄送: 21...@debbugs.gnu.org
> 主题: Re: bug#21434: BUG Report: "mark-sexp" function disable.
> 
> 赵瑞昌  writes:
> 
> Hi!
> 
> > When enter a `*.tex' file and initiate auctex(11.86), the function
> > `mark-sexp'(and also `forward/backward-sexp) is disabled.  The
> > correspond key-bindings (C-M-@ or ESC ) also get no
> > responses (which are well previously).
> 
> What do you mean with the functions are being disabled, and the key
> bindings don't get responses?
> 
> For me, all these functions work and are bound to their usual keys in a
> buffer of a tex file.
> 
> > Emacs  : GNU Emacs 23.3.1 (i686-pc-linux-gnu, GTK+ Version 2.24.10)
> >  of 2013-05-17 on komainu, modified by Debian
> > Package: 11.86
> 
> 11.86 is more than five years old, and your Emacs version is quite
> dated, too.  Could you please try again with at least a recent AUCTeX
> version, e.g., 11.88?
> 
> Bye,
> Tassilo




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bug#21434: Re: bug#21434: BUG Report: "mark-sexp" function disable.

[gojjoe]

On Fri150911 10:26, 赵瑞昌 wrote:


when `C-M-@' (mark-sexp) at the beginning of a `\begin{...', only `\begin' 
canbe marked, instead of the whole env.
And also the `forward/backward-sexp' can only effect to the `\begin'.


I confirm this, with the same versions (emacs on Windows). I 
thought that was the intended behaviour.


Cheers,
J



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bug#21434: Re: bug#21434: BUG Report: "mark-sexp" function disable.

[Mosè Giordano]

2015-09-11 3:26 GMT+02:00 赵瑞昌 :
> Thank you Mosè, for your reply.
>
> I have a try `emacs -q'. The problem still exist.
> `mark-sexp' is expected to mark the whole range of env., but only the 
> ``\begin'' was marked.

You're telling that `mark-sexp' is expected to mark the environment,
but this isn't true: `mark-sexp' is expect to mark "parentheses".  If
you want to mark an environment use `C-c .', bound to
`LaTeX-mark-environment'.

Bye,
Mosè



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bug#21434: BUG Report: "mark-sexp" function disable.

[Tassilo Horn]

赵瑞昌  writes:

> I have updated the emacs to 24.5.1, and installed auctex 11.88.8 by
> `package-list-packages'.  however, the problem seems still exist: when
> `C-M-@' (mark-sexp) at the beginning of a `\begin{...', only `\begin'
> canbe marked, instead of the whole env.  And also the
> `forward/backward-sexp' can only effect to the `\begin'.

Ah, now I get what you are saying.  Well, (La)TeX has no real notion of
a sexp, so `forward-sexp' and `backward-sexp' basically move over words
and symbols (TeX macros), or from one (, [, or { to the respective
closing paren/bracket.

But you can give Magnar's awesome expand-region a try.

  https://github.com/magnars/expand-region.el

That has support for expanding the current region also in LaTeX specific
ways.  E.g. with

\begin{enumerate}
\item foo
\item _b_ar
\end{enumerate}

where the _b_ means point is on the b in bar, calling er/expand-region
results in

\begin{enumerate}
\item foo
\item _bar_
\end{enumerate}

where the complete _bar_ is marked, another call gives

\begin{enumerate}
\item foo
_\item bar_
\end{enumerate}

where the complete \item ... is marked, another two calls mark all
items, and a final call markes the complete environment.

I think that's exactly what you want, right?  And expand-region.el can
do this magic not only for latex but also for lisp, ruby, python, xml,
javascript, CSS, and what not.

Bye,
Tassilo



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