Re: Jump to autoconf macro documentation

[Kevin Rodgers]

On 1/30/11 3:47 AM, Andrea Crotti wrote:
> I would like to help myself to understand and write correct Configure.ac
> files.
>
> Now one idea would be to be able to jump from the macro to its
> definition.
>
> So I found that the definition of every macro is given in the autoconf
> Info page, for example under with the string:
>
> Macro: AC_ARG_ENABLE
>
> so it would be easy to jump to.
>
> Only one problem, how (thing-at-point 'word) doesn't work well with
>
> AC_ARG_ENABLE for example, so or I redefine locally how a word should be
> (if possible), or I have to do some other regexp trick to get it.

(thing-at-point 'sexp)

> Another problem is that I don't get how to look for, if I have an Info
> buffer already open it uses that position.  So maybe it's better if I
> create a new Info buffer and use it.

(info "autoconf" "*autoconf*<AC_ARG_ENABLE>")

> And also how do I jump to an info page from the TOC: RET is bound to
> this:
>
> (Info-follow-nearest-node&optional FORK)
>
> But I think there is a smarter way than doing a search-regexp and then
> use that function, right?

Yes:

Info-index is an interactive compiled Lisp function in `info.el'.

(Info-index TOPIC)

Look up a string TOPIC in the index for this manual and go to that entry.
If there are no exact matches to the specified topic, this chooses
the first match which is a case-insensitive substring of a topic.
Use the , command to see the other matches.
Give an empty topic name to go to the Index node itself.

--
Kevin Rodgers
Denver, Colorado, USA