About Emacs features

About Emacs features

[Alejandro Zamora Fonseca]

Hello!
I´m a Emacs new user and I have a question.
How I can auto-complete words and create 'macros'(code snipets rapid 
generation) like in Notepad++.?

Thanks,
Alejandro


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Re: About Emacs features

[Sivaram Neelakantan]

On Tue, Jan 14 2014,Alejandro Zamora Fonseca Alejandro Zamora Fonseca wrote:

> Hello!
> I´m a Emacs new user and I have a question.
> How I can auto-complete words and create 'macros'(code snipets rapid
> generation) like in Notepad++.?
>
> Thanks,
> Alejandro
>
>

try auto-complete which might be a bit more natural.  And I got this
snippet from the list here a long time ago.  TAB does some completions 

--8<---------------cut here---------------start------------->8---
;;;;re-using tab 
(defun indent-or-expand (arg) 
  "Either indent according to mode, or expand the word preceding 
point." 
  (interactive "*P") 
  (if (and 
       (or (bobp) (= ?w (char-syntax (char-before)))) 
       (or (eobp) (not (= ?w (char-syntax (char-after)))))) 
      (dabbrev-expand arg) 
    (indent-according-to-mode))) 
 
(defun my-tab-fix () 
  (local-set-key [tab] 'indent-or-expand)) 

(add-hook 'c-mode-hook          'my-tab-fix) 
(add-hook 'sh-mode-hook         'my-tab-fix) 
(add-hook 'text-mode-hook         'my-tab-fix) 
(add-hook 'emacs-lisp-mode-hook 'my-tab-fix) 
--8<---------------cut here---------------end--------------->8---


[snipped 8 lines]



 sivaram
 -- 

Re: About Emacs features

[Ken Goldman]

On 1/13/2014 2:27 PM, Alejandro Zamora Fonseca wrote:

> How I can auto-complete words

Start with this:

M-/ runs the command dabbrev-expand

> and create 'macros'(code snipets rapid generation) like in Notepad++.?

The easiest way to start is with keyboard macros.  You don't have to 
write any code.  It's like a key logger and replay.

To define

start-kbd-macro
end-kbd-macro

To run

call-last-kbd-macro

To save

name-kbd-macro

Re: About Emacs features

[Pete Ley]

Ken Goldman <kgoldman@us.ibm.com> writes:

> To define
>
> start-kbd-macro
> end-kbd-macro
>
> To run
>
> call-last-kbd-macro
>
> To save
>
> name-kbd-macro

You can also open up your init file and run insert-kbd-macro so it's
saved between sessions. 

Re: About Emacs features

[Emanuel Berg]

Alejandro Zamora Fonseca <terefv@ltu.sld.cu> writes:

> Hello!  I´m a Emacs new user and I have a question.
> How I can auto-complete words and create
> 'macros'(code snipets rapid generation) like in
> Notepad++.?

There are probably many modules for this. 'yasnippet',
for example. Lots of times, though, it is better just
to work on your typing. For really long and annoying
words, you can setup abbrevs.

-- 
underground experts united:
http://user.it.uu.se/~embe8573

Re: About Emacs features

[Emanuel Berg]

Alejandro Zamora Fonseca <terefv@ltu.sld.cu> writes:

> Hello! I'm a Emacs new user and I have a question.
> How I can auto-complete words and create 'macros'
> (code snipets rapid generation) like in Notepad++?

For "auto-complete", you can use abbrev, as mentioned,
but I don't know if there is a "dynamic" auto-complete
feature like in some of those M$ IDEs where you define
a variable (or create a button, with old-school
Hungarian notation to keep track of one zillion
objects) and then just type the beginning of the name
to get suggestions, and then hit enter to complete. I
don't like that, because it is disruptive, and besides
short names and typing (finger habits/muscle memory)
will more than account for it (as I see it), but if you
want it, I never saw any abbrev except for the static
one that you manually put up in a file (or with
interactive calls). Most likely, someone else on this
list can tell you if such a feature exists.

As for keyboard macros, there are those (not to be
confused with Lisp macros), as in poor man's
programming (like xmacroplay in X) but as you describe
it, I'd say you don't want (keyboard) macros, but a
template facility. Check out those URLs:

http://www.emacswiki.org/emacs/CategoryTemplates
http://unix.stackexchange.com/a/71623

As an example, this is what aptitude tells me about
'yasnippet':

Description: A template system for Emacs

YASnippet (yet another snippet extension for Emacs) is
a template system for Emacs. It allows you to type an
abbreviation and automatically expand the abbreviation
into function templates.
 
Bundled language templates includes: C, C++, C#, Perl,
Python, Ruby, SQL, LaTeX, HTML, CSS and more.

Homepage: http://code.google.com/p/yasnippet/

-- 
underground experts united:
http://user.it.uu.se/~embe8573

Re: About Emacs features

[Damien Wyart]

* Emanuel Berg <embe8573@student.uu.se> in gnu.emacs.help:
> For "auto-complete", you can use abbrev, as mentioned, but I don't
> know if there is a "dynamic" auto-complete feature like in some of
> those M$ IDEs where you define a variable (or create a button, with
> old-school Hungarian notation to keep track of one zillion objects)
> and then just type the beginning of the name to get suggestions, and
> then hit enter to complete.

Auto Complete is quite popular: http://cx4a.org/software/auto-complete/

Other packages are listed here (under Text Completion):
http://www.emacswiki.org/emacs/CategoryCompletion

There are also a few per-language specialized packages, eg Jedi for
Python: http://tkf.github.io/emacs-jedi/
or Robe or Rsense for Ruby, and so on...

-- 
DW

Re: About Emacs features

[Damien Wyart]

> Auto Complete is quite popular: http://cx4a.org/software/auto-complete/

https://github.com/company-mode/company-mode is also quite good.

-- 
DW

Re: About Emacs features

[Javier]

To most straighforward way to complete a word is M-/ (ESC-/).  It just
guesses from the words you previously typed.  Press M-/ again to
change the choices for the word.  It should work in recent versions of
emacs without configuring anything.

M-/ (translated from <escape> /) runs the command dabbrev-expand,
which is an interactive autoloaded Lisp function in `dabbrev.el'.

It is bound to M-/.

------------------------------------------------------------
(dabbrev-expand ARG)

Expand previous word "dynamically".

Expands to the most recent, preceding word for which this is a prefix.
If no suitable preceding word is found, words following point are
considered.  If still no suitable word is found, then look in the
buffers accepted by the function pointed out by variable
`dabbrev-friend-buffer-function'.

A positive prefix argument, N, says to take the Nth backward *distinct*
possibility.  A negative argument says search forward.

If the cursor has not moved from the end of the previous expansion and
no argument is given, replace the previously-made expansion
with the next possible expansion not yet tried.

The variable `dabbrev-backward-only' may be used to limit the
direction of search to backward if set non-nil.

See also `dabbrev-abbrev-char-regexp' and C-M-/.