Emacs IDE

Emacs IDE

[Ahmed Sorour]

Hi,

I've recently been working more extensively with various coding languages,
and have developed a need to use IDEs.

Is it possible to configure Emacs to act as a complete replacement for:

- Atom or Sublime (for Python)
- IntelliJ IDEA (for Java)

Aside from project management, I'm also interested in a setup where I can
call Emacs to launch with one configuration when working with Java, and
another configuration when working with Python, etc.


Thanks

Re: Emacs IDE

[tomas]

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On Fri, Mar 03, 2017 at 08:06:42PM -0500, Ahmed Sorour wrote:
> Hi,
> 
> I've recently been working more extensively with various coding languages,
> and have developed a need to use IDEs.
> 
> Is it possible to configure Emacs to act as a complete replacement for:

[...]

You won't find answers for that. Better pose more concrete questions.
Development styles vary *a lot* from person to person, from team to
team, and even along time.

Asking "Can Emacs do *exactly* as <foo> (for foo in IntelliJ, Sublime,
whatnot)?" can thus only be answered with "no". Why don't you use <foo>,
then?

Now if you think about what features of <foo> are those you need, those
you value highly, those you more-or-less appreciate... then we're talking
:-)

regards
- -- tomás
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Re: Emacs IDE

[Krishnakant]

On Saturday 04 March 2017 02:04 PM, tomas@tuxteam.de wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On Fri, Mar 03, 2017 at 08:06:42PM -0500, Ahmed Sorour wrote:
>> Hi,
>>
>> I've recently been working more extensively with various coding languages,
>> and have developed a need to use IDEs.
>>
>> Is it possible to configure Emacs to act as a complete replacement for:
> [...]
>
> You won't find answers for that. Better pose more concrete questions.
> Development styles vary *a lot* from person to person, from team to
> team, and even along time.
>
> Asking "Can Emacs do *exactly* as <foo> (for foo in IntelliJ, Sublime,
> whatnot)?" can thus only be answered with "no". Why don't you use <foo>,
> then?
>
> Now if you think about what features of <foo> are those you need, those
> you value highly, those you more-or-less appreciate... then we're talking
> :-)
>
> regards
> - -- tomás
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> iEYEARECAAYFAli6fDEACgkQBcgs9XrR2kYnGwCdH6FcSOnOoN239lgrEhsGukpu
> mZUAn0OjutlG9rI2s1PY/9Xb2Y7cyAE9
> =mng+
> -----END PGP SIGNATURE-----

+1 for the same.
Actually Emacs is way too powerful than what you think.
You can have a complete IDE (auto completion, refactoring. bracket 
paring, code navigation ... and I may not be able to stop here ).
So it will b nice if you ask a particular question.
for example, How do I get all the code completion or ... features for 
web development?  Javascript html etc.
So we will be able to guide you correct.
Happy hacking.
Krishnakant.

Re: Emacs as an IDE

[Francis Belliveau]

I admit that the original question was a bit open.  It assumed that some of us readers knew how a specific pair of IDE's work.
A poor assumption since emacs wizards are more likely to use emacs as their IDE with things customized as they desire.

So it seems that the answer to the basic question is: Yes, emacs can be configured to be used in manner similar to an IDE.

I am not such a user, but would like to know how to configure such a thing.  I do have some specific questions below.

As I understand it emacs triggers such things via "mode" that is normally tied to file extension, so as long as all of your source files have a properly uniques extension that identifies language, you get the correct mode automatically.  For instance, I expect that you have already discovered that your .java files come up in Java-Mode with a default set of coding-style rules.

The next problems are:
  How do I customize the coding style to my match desires?
and
  How do I get "code-finding" and "code-completion" to work?

I have been coding in C++ for a long time and am reasonably happy with how those modes work, but I do not know the answer to my second question.  I also use Java and could use help with the first question in that regard.
Again, I admit that the first question is way too general for a specific answer, but a pointer regarding how to find where to start reading in the documentation would be helpful.  Navigating the documentation requires one to be able to follow the mind-set of the writer, and I just cannot seem to find my way to what I need very easily.

Although a documentation pointer would also be a useful answer to the second question, I expect that it would also be possible to provide an outline of the basic steps so that I could better search the documentation for "how to" information.  Clearly emacs would need some sort of symbol-table to tell it which file a particular object/method exists in so that it can find its way to said method and/or auto-complete a partial entry.

Some help with where to start would be useful.

Thanks,
Fran

Re: Emacs as an IDE

[tomas]

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On Sun, Mar 05, 2017 at 09:47:35AM -0500, Francis Belliveau wrote:
> I admit that the original question was a bit open.  It assumed that some of us readers knew how a specific pair of IDE's work.
> A poor assumption since emacs wizards are more likely to use emacs as their IDE with things customized as they desire.

This is one point; another is that all those IDEs are huge and have
all their own philosophies: each user tends to use different subsets
of them. Asking "like X" blurs this subsetting and will forcefully
ignore the one *you* care about. Moreover, "doing all as X does it"
is probably unachievable -- unless you use "X", that is :-)

> So it seems that the answer to the basic question is: Yes, emacs can be configured to be used in manner similar to an IDE.
> 
> I am not such a user, but would like to know how to configure such a thing.  I do have some specific questions below.

That's right: there are pretty extensive packages (like EDE [1]) which
cover IDE functionality (e.g. indexing "interesting" syntactic
objects in a whole project and similar things). That said, I'm not
the "IDE type" myself -- what I used so far is the compile-from-
editor and jump-me-to-next-error, usually provided by the mode
(but this extensively).

Then there are the modes:

> As I understand it emacs triggers such things via "mode" that is normally tied to file extension, so as long as all of your source files have a properly uniques extension that identifies language, you get the correct mode automatically.  For instance, I expect that you have already discovered that your .java files come up in Java-Mode with a default set of coding-style rules.

It's not only the extension: a mode can be set according to the file's
content (a typical example would be the shebang line in an interpreter
file, but you can also insert a specifically formatted comment at a
strategic place in a file). See "23.3 Choosing File Modes" in the
fine manual, online here [2]

Modes are highly customizable wrt coding style. If you are at an
Emacs, just type in M-x customize <RET> and browse through the
options tree to get a first impression.

> 
> The next problems are:
>   How do I customize the coding style to my match desires?

See above.

> and
>   How do I get "code-finding" and "code-completion" to work?

I think EDE covers that. But I'll hope more knowledgeable folks chime in.
Depending on your target language there are other kinds of development
environments, which, for example can run the target's language interpreter
or a debugger like gdb and thus stay current about the target program's
status.

> I have been coding in C++ for a long time and am reasonably happy with how those modes work, but I do not know the answer to my second question.  I also use Java and could use help with the first question in that regard.
> Again, I admit that the first question is way too general for a specific answer, but a pointer regarding how to find where to start reading in the documentation would be helpful.  Navigating the documentation requires one to be able to follow the mind-set of the writer, and I just cannot seem to find my way to what I need very easily.
> 
> Although a documentation pointer would also be a useful answer to the second question, I expect that it would also be possible to provide an outline of the basic steps so that I could better search the documentation for "how to" information.  Clearly emacs would need some sort of symbol-table to tell it which file a particular object/method exists in so that it can find its way to said method and/or auto-complete a partial entry.
> 
> Some help with where to start would be useful.

Yes, discovering this world can be daunting at times. But it's
worth it :-)

[1] https://www.gnu.org/software/emacs/manual/html_node/emacs/EDE.html
[2] https://www.gnu.org/software/emacs/manual/html_node/emacs/Choosing-Modes.html

regards
- -- tomás
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Re: Emacs as an IDE

[Francis Belliveau]

Thanks to all who helped me with this subject.

Fran

Re: Emacs as an IDE

[Krishnakant]

Hmm, and me too.

although I have got fair bit of proficiency with Python-mode, I had 
issues with web development.

Slowly they are getting solved.

Happy hacking.

Krishnakant.


On Wednesday 08 March 2017 06:42 AM, Francis Belliveau wrote:
> Thanks to all who helped me with this subject.
>
> Fran
>

Re: Emacs as an IDE

[Anast Gramm]

Hello,

What I've done 3 months ago when I was on your position was the following:

I read this http://tuhdo.github.io/ dudes manuals. They are amazing at explaining
how stuff works and how to set up a basic customization.

Especially this one http://tuhdo.github.io/c-ide.html that also answers a lot of
your questions.

From there on I just browse M-x package-list-packages and see stuff that I like and try
to implement them in my workflow. 6 months ago I had a .emacs with ~20 lines of lisp,
now I have an .org file with my configuration and it's about ~1500 lines. So this
thing escalates really quick. Beware not to get lost.

Now for the sad part:

Java is a high level language and there are awesome IDEs out there for it.
My favorite is IntelliJ. Those beasts are simply too much work for an emacs
user to replace. As I see it, you're better off using IntelliJ or Eclipse
for java development.

I think someone should build a complete IDE experience for java development
but until then proprietary software is gonna have the lead.

P.S. I avoid java just for this reason (I also like C/C++ more)

Re: Emacs as an IDE

[Krishnakant]

Hi,


On Sunday 05 March 2017 10:15 PM, Anast Gramm wrote:
> Hello,
>
> What I've done 3 months ago when I was on your position was the following:
>
> I read this http://tuhdo.github.io/ dudes manuals. They are amazing at explaining
> how stuff works and how to set up a basic customization.
>
> Especially this one http://tuhdo.github.io/c-ide.html that also answers a lot of
> your questions.
Wow I found this to be really valuable.
Thanks a lot from myself and on behalf of those who have just recently 
got started.
>  From there on I just browse M-x package-list-packages and see stuff that I like and try
> to implement them in my workflow. 6 months ago I had a .emacs with ~20 lines of lisp,
> now I have an .org file with my configuration and it's about ~1500 lines. So this
> thing escalates really quick. Beware not to get lost.
>
> Now for the sad part:
>
> Java is a high level language and there are awesome IDEs out there for it.
> My favorite is IntelliJ. Those beasts are simply too much work for an emacs
> user to replace. As I see it, you're better off using IntelliJ or Eclipse
> for java development.
>
> I think someone should build a complete IDE experience for java development
> but until then proprietary software is gonna have the lead.
I totally agree here.
I have done java programming in Eclipse and there is nothing apart from 
inteliJ which is as good enough.
> P.S. I avoid java just for this reason (I also like C/C++ more)
I have also quit Java for a long time.
I use Python for all my programming and Emacs just rocks for that with 
Python-mode (major ) and Elpy, company-jedi and electric-pair (minor 
modes ).
Happy hacking.
Krishnakant.

Re: Emacs IDE

[Kendall Shaw]

On 03/03/2017 05:06 PM, Ahmed Sorour wrote:
> Hi,
>
> I've recently been working more extensively with various coding languages,
> and have developed a need to use IDEs.
>
> Is it possible to configure Emacs to act as a complete replacement for:
>
> - Atom or Sublime (for Python)
> - IntelliJ IDEA (for Java)
>
> Aside from project management, I'm also interested in a setup where I can
> call Emacs to launch with one configuration when working with Java, and
> another configuration when working with Python, etc.
>
>

For java a couple of interesting packages are ensime which is really for 
scala but it works for java. And emacs-eclim which is more like 
integrating eclipse into emacs than the other way around.

The way I work is I use the ide and emacs at the same time. For 
debugging and some other activities and very minor editing, I use the 
ide (eclipse or intellij idea). As soon as I have to do significant 
editing, my hands go on strike and say I'm not going to type one more 
line and I'm forced to switch back to emacs.


Kendall

Re: Emacs IDE

[Krishnakant]

On Monday 06 March 2017 07:10 AM, Kendall Shaw wrote:
> On 03/03/2017 05:06 PM, Ahmed Sorour wrote:
>> Hi,
>>
>> I've recently been working more extensively with various coding 
>> languages,
>> and have developed a need to use IDEs.
>>
>> Is it possible to configure Emacs to act as a complete replacement for:
>>
>> - Atom or Sublime (for Python)
>> - IntelliJ IDEA (for Java)
>>
>> Aside from project management, I'm also interested in a setup where I 
>> can
>> call Emacs to launch with one configuration when working with Java, and
>> another configuration when working with Python, etc.
>>
>>
>
> For java a couple of interesting packages are ensime which is really 
> for scala but it works for java. And emacs-eclim which is more like 
> integrating eclipse into emacs than the other way around.
>
> The way I work is I use the ide and emacs at the same time. For 
> debugging and some other activities and very minor editing, I use the 
> ide (eclipse or intellij idea). As soon as I have to do significant 
> editing, my hands go on strike and say I'm not going to type one more 
> line and I'm forced to switch back to emacs.
>
>
> Kendall
My only concern right now with Emacs is web develoopment.
Html tags just don't get completed automatically and ther is no auto 
completion triggering as I type.
I have to press a keystroke every time I type some thing and get the 
auto completion done using company-web-html for all that work.
But programming in Python with Emacs is bliss.
Happy hacking.
Krishnakant.

Re: Emacs IDE

[chaouche yacine]

Krishnakant,

I believe yasnippet has some valuable html templates that you could use. But you can also use other tools, see : 
https://www.youtube.com/watch?v=sBhQ2NIcrLQ

-- Yassine.





On Monday, March 6, 2017 9:04 AM, Krishnakant <krmane@openmailbox.org> wrote:



On Monday 06 March 2017 07:10 AM, Kendall Shaw wrote:
> On 03/03/2017 05:06 PM, Ahmed Sorour wrote:
>> Hi,
>>
>> I've recently been working more extensively with various coding 
>> languages,
>> and have developed a need to use IDEs.
>>
>> Is it possible to configure Emacs to act as a complete replacement for:
>>
>> - Atom or Sublime (for Python)
>> - IntelliJ IDEA (for Java)
>>
>> Aside from project management, I'm also interested in a setup where I 
>> can
>> call Emacs to launch with one configuration when working with Java, and
>> another configuration when working with Python, etc.
>>
>>
>
> For java a couple of interesting packages are ensime which is really 
> for scala but it works for java. And emacs-eclim which is more like 
> integrating eclipse into emacs than the other way around.
>
> The way I work is I use the ide and emacs at the same time. For 
> debugging and some other activities and very minor editing, I use the 
> ide (eclipse or intellij idea). As soon as I have to do significant 
> editing, my hands go on strike and say I'm not going to type one more 
> line and I'm forced to switch back to emacs.
>
>
> Kendall
My only concern right now with Emacs is web develoopment.
Html tags just don't get completed automatically and ther is no auto 
completion triggering as I type.
I have to press a keystroke every time I type some thing and get the 
auto completion done using company-web-html for all that work.
But programming in Python with Emacs is bliss.
Happy hacking.
Krishnakant.

Re: Emacs IDE

[Krishnakant]

Hi Yassine,

Thanks a million for the poiners.

I am currently looking at yasnipit.

I think it is really very helpful.

But I am looking for auto completion as I type/

Some thing that company offers.

By the way the youtube video aught to be good, but I am totally blind 
and so won't get much out of it.

If you have any idea on how I can get auto completion while I type that 
will be great.

Also I wish a pair completion feature.

For example <body> should have emacs do </body> for me.

Another feature which indirectly benefits my sighted team maits is if 
they focus on a <div> tag, emacs should highlight the corresponding  
</div> tag.  Same for all tags.

Do you have some idea of some mode or can I customize web-mode with 
company to get this done?

Happy hacking.

Krishnakant.



On Monday 06 March 2017 04:09 PM, chaouche yacine wrote:
> Krishnakant,
>
> I believe yasnippet has some valuable html templates that you could use. But you can also use other tools, see :
> https://www.youtube.com/watch?v=sBhQ2NIcrLQ
>
> -- Yassine.
>
>
>
>
>
> On Monday, March 6, 2017 9:04 AM, Krishnakant <krmane@openmailbox.org> wrote:
>
>
>
> On Monday 06 March 2017 07:10 AM, Kendall Shaw wrote:
>> On 03/03/2017 05:06 PM, Ahmed Sorour wrote:
>>> Hi,
>>>
>>> I've recently been working more extensively with various coding
>>> languages,
>>> and have developed a need to use IDEs.
>>>
>>> Is it possible to configure Emacs to act as a complete replacement for:
>>>
>>> - Atom or Sublime (for Python)
>>> - IntelliJ IDEA (for Java)
>>>
>>> Aside from project management, I'm also interested in a setup where I
>>> can
>>> call Emacs to launch with one configuration when working with Java, and
>>> another configuration when working with Python, etc.
>>>
>>>
>> For java a couple of interesting packages are ensime which is really
>> for scala but it works for java. And emacs-eclim which is more like
>> integrating eclipse into emacs than the other way around.
>>
>> The way I work is I use the ide and emacs at the same time. For
>> debugging and some other activities and very minor editing, I use the
>> ide (eclipse or intellij idea). As soon as I have to do significant
>> editing, my hands go on strike and say I'm not going to type one more
>> line and I'm forced to switch back to emacs.
>>
>>
>> Kendall
> My only concern right now with Emacs is web develoopment.
> Html tags just don't get completed automatically and ther is no auto
> completion triggering as I type.
> I have to press a keystroke every time I type some thing and get the
> auto completion done using company-web-html for all that work.
> But programming in Python with Emacs is bliss.
> Happy hacking.
> Krishnakant.
>

Re: Emacs IDE

[chaouche yacine]

Hell Krishnakant,

Yasnippet already does that as you type, you only have to type the triggering sequence and the template will fire up. You'll eventually be able to master by practice.


  -- Yassine.

Re: Emacs IDE

[Krishnakant]

OK that's cool.

But will that also help me highlight the closing tag when cursor is on 
an opening tag?

Happy hacking.

Krishnakant/



On Monday 06 March 2017 05:30 PM, chaouche yacine wrote:
> Hell Krishnakant,
>
> Yasnippet already does that as you type, you only have to type the triggering sequence and the template will fire up. You'll eventually be able to master by practice.
>
>
>    -- Yassine.
>

Re: Emacs IDE

[chaouche yacine]

Krishnakant, I am a little surprised since you said you were totally blind. What would that change anyway ? besides, imagine an HTML document with 200 lines of code wrapped inside a body tag. Positioning your cursor on the opening <body> you wouldn't be able to see the closing </body> tag 200 lines further, same goes for long lists or tables. It might only be useful if both the beginning and ending tags are on the same page. I don't know if there's a mode that does that to be honest.

If you want, you can also check autocomplete-mode as well as ac-html which should also do what you want (suggest completions as you type).


  -- Yassine

Re: Emacs IDE

[Krishnakant]

On Monday 06 March 2017 07:51 PM, chaouche yacine wrote:
> Krishnakant, I am a little surprised since you said you were totally blind. What would that change anyway ? besides, imagine an HTML document with 200 lines of code wrapped inside a body tag. Positioning your cursor on the opening <body> you wouldn't be able to see the closing </body> tag 200 lines further, same goes for long lists or tables. It might only be useful if both the beginning and ending tags are on the same page. I don't know if there's a mode that does that to be honest.
Yes, it does not make a big difference to me as a blind programmer.
But my sighted colleagues who work with me will need it because they too 
plan to shift to Emacs.
Besides, Emacspeak (the screen reader for Emacs ) reads paired 
completion, but one has to use keyboard shortcuts to get it.  So the 
first reason is more valid.
yes you are right about <body> but for <div> it is a great idea because 
often nested divs confuse a developer when trying to figure out which 
one closes where.
Happy hacking.
Krishnakant.

> If you want, you can also check autocomplete-mode as well as ac-html which should also do what you want (suggest completions as you type).
>
>
>    -- Yassine

Re: Emacs IDE

[chaouche yacine]

Krishnakant,

Your story is inspiring and unusual as a blind developer isn't common. I wish you strength and courage.


Although I don't know about any modes myself that highlights the closing tag, there's C-c C-f to go forward a tag and C-c C-b to go backwards one tag, this is in html-mode (notice that html-helper-mode do not have these shortcuts). These shortcuts are inherited from SGML mode on which HTML mode is built.

There's also expand-region mode which highlights the whole region between an opening and closing tag. See 
https://github.com/magnars/expand-region.el

Hope this helps.

  -- Yassine


On Monday, March 6, 2017 3:58 PM, Krishnakant <krmane@openmailbox.org> wrote:




On Monday 06 March 2017 07:51 PM, chaouche yacine wrote:
> Krishnakant, I am a little surprised since you said you were totally blind. What would that change anyway ? besides, imagine an HTML document with 200 lines of code wrapped inside a body tag. Positioning your cursor on the opening <body> you wouldn't be able to see the closing </body> tag 200 lines further, same goes for long lists or tables. It might only be useful if both the beginning and ending tags are on the same page. I don't know if there's a mode that does that to be honest.
Yes, it does not make a big difference to me as a blind programmer.
But my sighted colleagues who work with me will need it because they too 
plan to shift to Emacs.
Besides, Emacspeak (the screen reader for Emacs ) reads paired 
completion, but one has to use keyboard shortcuts to get it.  So the 
first reason is more valid.
yes you are right about <body> but for <div> it is a great idea because 
often nested divs confuse a developer when trying to figure out which 
one closes where.
Happy hacking.
Krishnakant.

> If you want, you can also check autocomplete-mode as well as ac-html which should also do what you want (suggest completions as you type).
>
>
>    -- Yassine

Re: Emacs IDE

[Krishnakant]

Thanks a million Yacine.

Well I am just a bit confused.

Is web-mode and html-mode different?


So if not then can any one else tell me what I should hook for in 
web-mode for auto completion while I type.

I guessed that company mode does that but no success to that extent till 
now.

I am trying to get only 3 things.

auto completion while I type, auto tag paring when I enter the opening 
tag and highlight of the closing part.

Happy hacking.

Krishnaknat.



On Tuesday 07 March 2017 01:51 PM, chaouche yacine wrote:
> Krishnakant,
>
> Your story is inspiring and unusual as a blind developer isn't common. I wish you strength and courage.
>
>
> Although I don't know about any modes myself that highlights the closing tag, there's C-c C-f to go forward a tag and C-c C-b to go backwards one tag, this is in html-mode (notice that html-helper-mode do not have these shortcuts). These shortcuts are inherited from SGML mode on which HTML mode is built.
>
> There's also expand-region mode which highlights the whole region between an opening and closing tag. See
> https://github.com/magnars/expand-region.el
>
> Hope this helps.
>
>    -- Yassine
>
>
> On Monday, March 6, 2017 3:58 PM, Krishnakant <krmane@openmailbox.org> wrote:
>
>
>
>
> On Monday 06 March 2017 07:51 PM, chaouche yacine wrote:
>> Krishnakant, I am a little surprised since you said you were totally blind. What would that change anyway ? besides, imagine an HTML document with 200 lines of code wrapped inside a body tag. Positioning your cursor on the opening <body> you wouldn't be able to see the closing </body> tag 200 lines further, same goes for long lists or tables. It might only be useful if both the beginning and ending tags are on the same page. I don't know if there's a mode that does that to be honest.
> Yes, it does not make a big difference to me as a blind programmer.
> But my sighted colleagues who work with me will need it because they too
> plan to shift to Emacs.
> Besides, Emacspeak (the screen reader for Emacs ) reads paired
> completion, but one has to use keyboard shortcuts to get it.  So the
> first reason is more valid.
> yes you are right about <body> but for <div> it is a great idea because
> often nested divs confuse a developer when trying to figure out which
> one closes where.
> Happy hacking.
> Krishnakant.
>
>> If you want, you can also check autocomplete-mode as well as ac-html which should also do what you want (suggest completions as you type).
>>
>>
>>     -- Yassine

Re: Emacs IDE

[Stefan Monnier]

> Html tags just don't get completed automatically and ther is no auto
> completion triggering as I type.

You can try nxml-mode, which will give you the completion data, and
if you don't want to have to hit M-TAB to get completion, then install company-mode (from GNU ELPA) to get the "completion popup".

You'll probably also want to install the html5-schema package from GNU
ELPA, since Emacs only comes with the html4 schema.


        Stefan

Re: Emacs IDE

[Krishnakant]

On Tuesday 07 March 2017 07:56 PM, Stefan Monnier wrote:
>> Html tags just don't get completed automatically and ther is no auto
>> completion triggering as I type.
> You can try nxml-mode, which will give you the completion data, and
> if you don't want to have to hit M-TAB to get completion, then install company-mode (from GNU ELPA) to get the "completion popup".
>
> You'll probably also want to install the html5-schema package from GNU
> ELPA, since Emacs only comes with the html4 schema.
>
Hi Stefan,
Thanks a lot.
2 quick questions.
is nxml mode a good replacement to web-mode?  As you know HTML is not 
the only thing a single .html file will have, probably css and 
javascript will also be there.
and second, will I have to configure company to work with nxml or will 
nxml search for company and start it automatically?
Do i have to add the hooks for that?
Happy hacking.
Krishnakant.

Re: Emacs IDE

[Stefan Monnier]

> will nxml search for company and start it automatically?

Imposing company on the unsuspecting user would be a mistake.


        Stefan

Emacs as an IDE

[polymedes]

I would like to use emacs for software development and I currently am
learning it. I use the command "dabbrev-expand" (bound to M-/) to
expand (autocomplete) funtion and variable names. But how can I see
the function definition _while_ I'm typing ?

In all IDEs when you type the opening parenthesis a tooltip shows you
the arguments that you should pass to the function.

What do emacs developers usually do?

Furthermore, if the function is overloaded how can somebody know all
the definitions?

These questions apply to C++, Java, Python and C#

Re: Emacs as an IDE

[Thorsten Bonow]

>>>>> "polymedes" == polymedes  <polymedes@gmail.com> writes:

    polymedes> I would like to use emacs for software development and I
    polymedes> currently am learning it. I use the command "dabbrev-expand"
    polymedes> (bound to M-/) to expand (autocomplete) funtion and variable
    polymedes> names. But how can I see the function definition _while_ I'm
    polymedes> typing ?

    polymedes> In all IDEs when you type the opening parenthesis a tooltip shows
    polymedes> you the arguments that you should pass to the function.

In *all* IDE's? Hui!

    polymedes> What do emacs developers usually do?

They google for it :-) This is a FAQ. Look for cedet, ecb and intellisense:

     http://cedet.sourceforge.net/intellisense.shtml

    polymedes> Furthermore, if the function is overloaded how can somebody know
    polymedes> all the definitions?

    polymedes> These questions apply to C++, Java, Python and C#

cedet and ecb do work (at least) for C and C++, there is the Java Development Environment
for Emacs:

    http://jdee.sunsite.dk/

Since you don't like google:

The Emacs Lisp List is a good starting point for looking for lisp packages for Emacs:

    http://www.damtp.cam.ac.uk/user/sje30/emacs/ell.html

And last but not least there is the EmacsWiki:

    http://www.emacswiki.org/cgi-bin/wiki

Hope this helps...

Toto

-- 
Contact information and PGP key at
http://www-users.rwth-aachen.de/thorsten.bonow

You will pay for your sins. If you have already paid, please
disregard this message.

Re: Emacs as an IDE

[Richard G Riley]

Thorsten Bonow <thorsten.bonow@post.rwth-aachen.de> writes:

>>>>>> "polymedes" == polymedes  <polymedes@gmail.com> writes:
>
>     polymedes> I would like to use emacs for software development and I
>     polymedes> currently am learning it. I use the command "dabbrev-expand"
>     polymedes> (bound to M-/) to expand (autocomplete) funtion and variable
>     polymedes> names. But how can I see the function definition _while_ I'm
>     polymedes> typing ?
>
>     polymedes> In all IDEs when you type the opening parenthesis a tooltip shows
>     polymedes> you the arguments that you should pass to the function.
>
> In *all* IDE's? Hui!
>
>     polymedes> What do emacs developers usually do?
>
> They google for it :-) This is a FAQ. Look for cedet, ecb and
> intellisense:

Do you have it working? I never got intellisense "like" features working
properly (or usefully).

Re: Emacs as an IDE

[Thorsten Bonow]

>>>>> "Richard" == Richard G Riley <Richard> writes:

    [...]

    >> They google for it :-) This is a FAQ. Look for cedet, ecb and
    >> intellisense:

    Richard> Do you have it working? I never got intellisense "like" features
    Richard> working properly (or usefully).

Hi,

yeah, took me some time and still isn't up to complex C++ projects, but my setup
for C source files displays the declarations of variables, functions etc. in the
minibuffer and I can do completion with `semantic-ia-complete-symbol'.

If you are interested, I can post my setup here, but be warned: there are a lot
of settings related to cedet and ecb, and I have no time to sort everything
superflous for your problem out.

Toto

-- 
Contact information and PGP key at
http://www-users.rwth-aachen.de/thorsten.bonow

I knew I wasn't as stupid as I looked. No one was.

Friedman, Kinky (1993), Greenwich Killing Time. New York (Wings
Books), 204

Re: Emacs as an IDE

[Richard G Riley]

Thorsten Bonow <thorsten.bonow@post.rwth-aachen.de> writes:

>>>>>> "Richard" == Richard G Riley <Richard> writes:
>
>     [...]
>
>     >> They google for it :-) This is a FAQ. Look for cedet, ecb and
>     >> intellisense:
>
>     Richard> Do you have it working? I never got intellisense "like" features
>     Richard> working properly (or usefully).
>
> Hi,
>
> yeah, took me some time and still isn't up to complex C++ projects, but my setup
> for C source files displays the declarations of variables, functions etc. in the
> minibuffer and I can do completion with `semantic-ia-complete-symbol'.
>
> If you are interested, I can post my setup here, but be warned: there are a lot
> of settings related to cedet and ecb, and I have no time to sort everything
> superflous for your problem out.
>
> Toto

Please do.

Re: Emacs as an IDE

[Thorsten Bonow]

>>>>> "Richard" == Richard G Riley <Richard> writes:

    [...]

    >> If you are interested, I can post my setup here, but be warned: there are
    >> a lot of settings related to cedet and ecb, and I have no time to sort
    >> everything superflous for your problem out.
    >>
    >> Toto

    Richard> Please do.

Here it comes; you have been warned :-)

Feel free to ask questions... I hope I have more time in the next days...

Toto

;; ** cedet and ecb
(defvar my-cedet-directory
  (concat "~" init-file-user "/elisp/" "emacs/" "cedet-1.0pre3")
  "Directory where cedet is installed.")
(if (not (file-exists-p my-cedet-directory))
    (message "Not loading cedet...")
  (message "Loading cedet...")
  ;; Load CEDET
  ;; (setq semantic-load-turn-useful-things-on t)
  (load-file (concat my-cedet-directory "/common/" "cedet.elc"))
  ;; Enabling various SEMANTIC minor modes.  See semantic/INSTALL for more ideas.
  ;; Select one of the following
  (semantic-load-enable-code-helpers)
  ;; (semantic-load-enable-guady-code-helpers)
  ;; (semantic-load-enable-excessive-code-helpers)
  (if (file-exists-p "/var/tmp/semantic")
      (setq semanticdb-default-save-directory "/var/tmp/semantic")
    (message "/var/tmp/semantic directory does not exist!"))
  ;; ECB
  (defvar my-ecb-directory
    (concat "~" init-file-user "/elisp/" "emacs/" "ecb-2.32")
    "Directory where cedet is installed.")
  (if (not (file-exists-p my-ecb-directory))
      (message "Not loading ECB...")
    (message "Loading ECB...")
    (add-to-list 'load-path my-ecb-directory)
    (require 'ecb)
    (setq ecb-tip-of-the-day nil)
    (set-face-background 'ecb-tag-header-face "brown")
    (set-face-background 'ecb-default-highlight-face "maroon")
    ;; *** my-ecb-goto-other-edit-window
    ;; bound to viper macro "ESC ee"
    (defun my-ecb-goto-other-edit-window ()
      "Call ecb-goto-window-edit2, if that returns nil,
call ecb-goto-window-edit1."
      (interactive)
      (if (ecb-goto-window-edit2)
	  ()
	(ecb-goto-window-edit1)))
    ;; *** solve incompatibilities of ecb with other packages
    ;; **** ecb and partial windows
  (setq truncate-partial-width-windows nil)
  ;; **** ecb and calendar
  (add-hook 'initial-calendar-window-hook
	    (function (lambda ()
			(or (one-window-p t)
			    (/= (frame-width) (window-width))
			    (and ecb-minor-mode (ecb-point-in-edit-window)))
			(shrink-window (- (window-height) 9)))))
  ;; **** ecb and calculator (not calc)
  (setq calculator-electric-mode t)
  ;; **** ecb and calc
  (defvar my-ecb-windows-hidden-for-calc nil
    "Indicate if ECB windows were visible before `calc' was called.")
  (defun my-ecb-calc-adapt ()
    "This defun hides ECB windows if ECB is active and
ECB windows are not hidden. Only to be called by advice to `calc' function."
    (if (equal ecb-minor-mode nil)
	(setq my-ecb-windows-hidden-for-calc nil)
      (ecb-deactivate)
      (setq my-ecb-windows-hidden-for-calc t)))
  (defun my-ecb-calc-quit-adapt ()
    "This defun unhides ECB windows if ECB is active and
ECB windows are hidden and my-ecb-windows-hidden-for-calc is t.
Only to be called by advice to `calc-quit'."
    (if (equal my-ecb-windows-hidden-for-calc t)
	(ecb-activate)))
  (defadvice calc (before my-ecb-calc-advise)
    "Delete other windows and hide ECB windows before running `calc'."
    (delete-other-windows)
    (my-ecb-calc-adapt))
  (defadvice calc-quit (after my-ecb-calc-quit-advise)
    "Restore ECB windows when quitting `calc' if necessary."
    (my-ecb-calc-quit-adapt))
  (ad-activate 'calc)
  (ad-activate 'calc-quit)
  ;; **** ecb and mew
  (defvar my-ecb-windows-hidden-for-mew nil
    "Indicate if ECB windows were visible before `mew' was called.")
  (defun my-ecb-mew-adapt ()
    "This defun hides ECB windows if ECB is active and
ECB windows are not hidden. Only to be called by advice to `mew' function."
    (if (equal ecb-minor-mode t)
	(if (equal ecb-frame (selected-frame))
	    (if (equal ecb-windows-hidden t)
		(setq my-ecb-windows-hidden-for-mew nil)
	      (ecb-toggle-ecb-windows)
	      (setq my-ecb-windows-hidden-for-mew t)))))
  (defun my-ecb-mew-summary-suspend-or-quit-adapt ()
    "This defun unhides ECB windows if ECB is active and
ECB windows are hidden and my-ecb-windows-hidden-for-mew is t.
Only to be called by advice to `mew-summary-suspend' or `mew-summary-quit'."
    (if (equal ecb-minor-mode t)
	(if (equal ecb-frame (selected-frame))
	    (if (equal ecb-windows-hidden t)
		(if (equal my-ecb-windows-hidden-for-mew t)
		    (ecb-toggle-ecb-windows)))))
    (setq my-ecb-windows-hidden-for-mew nil))
  (defadvice mew (before my-ecb-mew-advise)
    "Delete other windows and hide ECB windows before running `mew'."
    (delete-other-windows)
    (my-ecb-mew-adapt))
  (defadvice mew-summary-suspend (after my-ecb-mew-summary-suspend-advise)
    "Restore ECB windows when suspending `mew-summary' if necessary."
    (my-ecb-mew-summary-suspend-or-quit-adapt))
  (defadvice mew-summary-quit (after my-ecb-mew-summary-quit-advice)
    "Restore ECB windows when quitting `mew-summary' if necessary."
    (my-ecb-mew-summary-suspend-or-quit-adapt))
  (ad-activate 'mew)
  (ad-activate 'mew-summary-suspend)
  (ad-activate 'mew-summary-quit)
  ;; *** ecb customization
  (setq ecb-process-non-semantic-files t)
  (setq ecb-fix-window-size 'auto)
  (setq ecb-layout-name "left3")
  (setq ecb-toggle-layout-sequence '("leftright1" "left3"))
  (cond ((string-match "herrrossi" (system-name))
	 (setq ecb-windows-width 0.20)
	 )
	((string-match "gastone" (system-name))
	 (setq ecb-windows-width 0.31)
	 ))
  (add-hook 'ecb-activate-hook
	    (lambda ()
	      'vc-delete-logbuf-window nil))
  (add-hook 'ecb-deactivate-hook
	    (lambda ()
	      'vc-delete-logbuf-window t))
  (defun my-ecb-toggle-ecb-windows()
    "Call `ecb-toggle-ecb-windows' or `ecb-activate' if ECB has not been
  activated before."
    (interactive)
    (if (equal ecb-minor-mode t)
	(ecb-toggle-ecb-windows)
      (ecb-activate)))
  (global-set-key [f3] 'my-ecb-toggle-ecb-windows)
  (global-set-key [S-f3] 'ecb-toggle-layout)
  ))


-- 
Contact information and PGP key at
http://www-users.rwth-aachen.de/thorsten.bonow

It was Christmas Eve and all the salamis in the window of the
Carnegie Deli had been hung with care. It was two o'clock in the
morning and I was drifting by the window like a secular ghost in
the rain when suddenly, between two salamis, I saw something that
made me stop on a dime and pick it up.

Kinky Friedman: Musical Chairs

emacs as an ide

[Martin]

Hi,

I want to use emacs as an ide.  I can see how to set it up to simply compile
the current file, but I would also like to be able to build projects (ie.
compile multiple files and then link them), and build a solution - ie build
multiple projects.

Is it possible to add buttons or menu options that execute appropriate make
commands?  Also would it still be able to hook up any compile error messages
with the appropriate source file?

Thanks alot
Martin

Re: emacs as an ide

[Phillip Lord]

>>>>> "Martin" == Martin  <x@y.z> writes:

  Martin> Hi,

  Martin> I want to use emacs as an ide.  I can see how to set it up
  Martin> to simply compile the current file, but I would also like to
  Martin> be able to build projects (ie.  compile multiple files and
  Martin> then link them), and build a solution - ie build multiple
  Martin> projects.

  Martin> Is it possible to add buttons or menu options that execute
  Martin> appropriate make commands?  Also would it still be able to
  Martin> hook up any compile error messages with the appropriate
  Martin> source file?

It's certainly possible to do this, but its more probable that you
don't want to. 

Emacs already has a lot of support for compilation, through make for
example. Specify your build with make, and the M-x compile (or
Tools-->Compile) will do the job. Whether emacs will parse the compile
error messages or not, depends on what language you are talking about,
and what compiler.

Cheers

Phil

Re: emacs as an ide

[Pascal Bourguignon]

"Martin" <x@y.z> writes:
> Hi,
> 
> I want to use emacs as an ide.  I can see how to set it up to simply compile
> the current file, but I would also like to be able to build projects (ie.
> compile multiple files and then link them), and build a solution - ie build
> multiple projects.

I do this editing makefiles and M-x compile RETURN.

If you don't want to write your own makefile (it's quite easy actually
C-h  i m  make RET),  you could  try to  use sophisticated  tools that
generate makefiles  for you,  like automake, autoconf,  configure, but
this is really using a nuke to kill a fly.


> Is it possible to add buttons or menu options that execute appropriate make
> commands?  Also would it still be able to hook up any compile error messages
> with the appropriate source file?

-- 
__Pascal_Bourguignon__
http://www.informatimago.com/
Do not adjust your mind, there is a fault in reality.

Re: emacs as an ide

[kgold]

M-x compile runs make as the default.
M-x next-error steps through the errors (also works after grep)

For single key stokes, I use:

(global-set-key [pause]	     'compile)
(global-set-key [C-pause]    'next-error)

"Martin" <x@y.z> writes:
> 
> I want to use emacs as an ide.  I can see how to set it up to simply compile
> the current file, but I would also like to be able to build projects (ie.
> compile multiple files and then link them), and build a solution - ie build
> multiple projects.
> 
> Is it possible to add buttons or menu options that execute appropriate make
> commands?  Also would it still be able to hook up any compile error messages
> with the appropriate source file?

Re: emacs as an ide

[Martin]

Philip, Pascal, kgold,

Thanks for your replies.  I reckon I would use the Tools Compile option to
compile the current buffer.
To build the current project and current solution, I would use different
make commands. (I already have a make file with appropriate targets in it)
However I am too lazy to do the M-x compile command - I don't want to have
to type any commands.  I just want to configure the commands and then access
them from a button or menu.

Do you know how I do that?

Thanks
Martin

"Martin" <x@y.z> wrote in message
news:IK8hb.467$7b5.44@newsfep1-gui.server.ntli.net...
> Hi,
>
> I want to use emacs as an ide.  I can see how to set it up to simply
compile
> the current file, but I would also like to be able to build projects (ie.
> compile multiple files and then link them), and build a solution - ie
build
> multiple projects.
>
> Is it possible to add buttons or menu options that execute appropriate
make
> commands?  Also would it still be able to hook up any compile error
messages
> with the appropriate source file?
>
> Thanks alot
> Martin
>
>

Re: emacs as an ide

[Phillip Lord]

>>>>> "Martin" == Martin  <x@y.z> writes:

  Martin> Philip, Pascal, kgold,

  Martin> Thanks for your replies.  I reckon I would use the Tools
  Martin> Compile option to compile the current buffer.  To build the
  Martin> current project and current solution, I would use different
  Martin> make commands. (I already have a make file with appropriate
  Martin> targets in it) However I am too lazy to do the M-x compile
  Martin> command - I don't want to have to type any commands.  I just
  Martin> want to configure the commands and then access them from a
  Martin> button or menu.

M-x compile and Tools->Compile are the same thing. 

If you want to specify different commands and put them into the menu
bar, yes you can do that, although its not necessarily straight
forward. easy-menu works quite well for this though. 

This is a menu definition that I used to use....


(defvar jde-more
   (list "JDE+"
 	["Set as main class"        phil-java-set-as-main-class t ]
 	["Toggle auto hide"         jfolding-toggle-autohide t ]
 	["Hide all "                jfolding-hide-all        t ]
	["Toggle +E option"         phil-java-toggle-e-option t ]
	["Toggle compiler"          phil-java-toggle-compiler t ]
         ))

(easy-menu-do-define 'jde-more jde-mode-map   "Additn Menu for JDE"
jde-more)

Phil

Re: emacs as an ide

[Kai Grossjohann]

"Martin" <x@y.z> writes:

> To build the current project and current solution, I would use different
> make commands. (I already have a make file with appropriate targets in it)
> However I am too lazy to do the M-x compile command - I don't want to have
> to type any commands.  I just want to configure the commands and then access
> them from a button or menu.

Well, (global-set-key (kbd "<f9>") 'recompile) might do something
useful for you.  WDYT?

Re: emacs as an ide

[Bruce Ingalls]

Kai Grossjohann wrote:
> "Martin" <x@y.z> writes:
>>...I am too lazy to do the M-x compile command 
> 
> Well, (global-set-key (kbd "<f9>") 'recompile) might do something
> useful for you.  WDYT?

If you want to follow Microsoft 'standards', F5 is run, and F7 is build,
As I Recall. In other modes, F7 is spell check, although some Gnusers
spell check their code.

Re: emacs as an ide

[LEE Sau Dan]

>>>>> "Bruce" == Bruce Ingalls <bingalls@fit-zones.NO-SPAM.com> writes:

    Bruce> Kai Grossjohann wrote:
    >> "Martin" <x@y.z> writes:
    >>> ...I am too lazy to do the M-x compile command
    >> Well, (global-set-key (kbd "<f9>") 'recompile) might do
    >> something useful for you.  WDYT?

    Bruce> If you want to follow Microsoft 'standards', F5 is run, and
    Bruce> F7 is build, As I Recall. In other modes, F7 is spell
    Bruce> check, although some Gnusers spell check their code.

In Borland's text-based  IDE's, F9 is the standard  key for "compile",
F7/F8 for 'previous-error and 'next-error, ...  It's not a coincidence
that both Martin and I have  F9 bound to 'compile.  (Maybe, Martin has
also bound F8 to 'next-error?)

And guess which predates which: Borland's IDE or Microsoft's IDE?


-- 
Lee Sau Dan                     李守敦(Big5)                    ~{@nJX6X~}(HZ) 

E-mail: danlee@informatik.uni-freiburg.de
Home page: http://www.informatik.uni-freiburg.de/~danlee

Re: emacs as an ide

[Jason Rumney]

Bruce Ingalls <bingalls@fit-zones.NO-SPAM.com> writes:

> If you want to follow Microsoft 'standards', F5 is run, and F7 is
> build,

Which Microsoft standards? The ones where F10 is "Step Over", or the
ones where F10 selects the menu bar, which is also a standard for
everyone else (including Emacs)?