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digitalmars.D.learn - Ncurses deprecated "~master" issue

reply "Paul" <paul example.com> writes:
Sorry if this is a little off-topic, I posted this in the Dub 
forum on 23/11/14 but have had no reply yet:


---
I read that the use of a branch spec like "~master" in dub.json 
is deprecated. I also read that it could be overriden on a 
per-project basis by editing the project's dub.selections.json 
file but I can't find any information about what is actually 
required in this file and whether any corresponding changes need 
to be made to dub.json.

I'm trying to use 'ncurses' which doesn't have a version number, 
only "~master".
---

Also, does anyone know how 'beta' the ncurses module actually is, 
is anyone using it?

Cheers

Paul
Dec 03 2014
parent reply Matt Soucy <msoucy csh.rit.edu> writes:
On 12/03/2014 07:07 AM, Paul wrote:

 Sorry if this is a little off-topic, I posted this in the Dub forum on =


23/11/14 but have had no reply yet:

=20
=20
 ---
 I read that the use of a branch spec like "~master" in dub.json is depr=


ecated. I also read that it could be overriden on a per-project basis by =
editing the project's dub.selections.json file but I can't find any infor=
mation about what is actually required in this file and whether any corre=
sponding changes need to be made to dub.json.

=20
 I'm trying to use 'ncurses' which doesn't have a version number, only "=


~master".

 ---
=20
 Also, does anyone know how 'beta' the ncurses module actually is, is an=


yone using it?

=20
 Cheers
=20
 Paul


So, as far as I know there isn't any plan for versioning that specific li=
brary. I've used it, however, and it's pretty usable (as much as ncurses =
goes, at any rate).

--=20
Matt Soucy
http://msoucy.me/
Dec 03 2014
parent reply "Paul" <paul example.com> writes:
On Wednesday, 3 December 2014 at 17:37:18 UTC, Matt Soucy wrote:

 On 12/03/2014 07:07 AM, Paul wrote:

 Sorry if this is a little off-topic, I posted this in the Dub 
 forum on 23/11/14 but have had no reply yet:
 
 
 ---
 I read that the use of a branch spec like "~master" in 
 dub.json is deprecated. I also read that it could be overriden 
 on a per-project basis by editing the project's 
 dub.selections.json file but I can't find any information 
 about what is actually required in this file and whether any 
 corresponding changes need to be made to dub.json.
 
 I'm trying to use 'ncurses' which doesn't have a version 
 number, only "~master".
 ---
 
 Also, does anyone know how 'beta' the ncurses module actually 
 is, is anyone using it?
 
 Cheers
 
 Paul


 So, as far as I know there isn't any plan for versioning that 
 specific library. I've used it, however, and it's pretty usable 
 (as much as ncurses goes, at any rate).


So do I manually add those source files to my program (assuming 
the ncurses libs are installed) if compiling with dmd rather than 
using dub?
Dec 03 2014
parent reply "Paul" <paul example.com> writes:
On Wednesday, 3 December 2014 at 19:37:03 UTC, Paul wrote:

 On Wednesday, 3 December 2014 at 17:37:18 UTC, Matt Soucy wrote:

 On 12/03/2014 07:07 AM, Paul wrote:

 Sorry if this is a little off-topic, I posted this in the Dub 
 forum on 23/11/14 but have had no reply yet:
 
 
 ---
 I read that the use of a branch spec like "~master" in 
 dub.json is deprecated. I also read that it could be 
 overriden on a per-project basis by editing the project's 
 dub.selections.json file but I can't find any information 
 about what is actually required in this file and whether any 
 corresponding changes need to be made to dub.json.
 
 I'm trying to use 'ncurses' which doesn't have a version 
 number, only "~master".
 ---
 
 Also, does anyone know how 'beta' the ncurses module actually 
 is, is anyone using it?
 
 Cheers
 
 Paul


 So, as far as I know there isn't any plan for versioning that 
 specific library. I've used it, however, and it's pretty 
 usable (as much as ncurses goes, at any rate).


 So do I manually add those source files to my program (assuming 
 the ncurses libs are installed) if compiling with dmd rather 
 than using dub?


Bump!

I need to use ncurses for some quick prototyping now but I still 
can't get it to work. Can someone please spell out the steps I 
need to take to get this going? I'm using dmd on a linux mint box 
and have ncurses (and dev package) installed.

What do I need to install and import exactly if I don't utilise 
Dub?

TIA

Paul
Feb 10 2015
parent reply "Meta" <jared771 gmail.com> writes:
On Tuesday, 10 February 2015 at 13:18:34 UTC, Paul wrote:

 On Wednesday, 3 December 2014 at 19:37:03 UTC, Paul wrote:

 On Wednesday, 3 December 2014 at 17:37:18 UTC, Matt Soucy 
 wrote:

 On 12/03/2014 07:07 AM, Paul wrote:

 Sorry if this is a little off-topic, I posted this in the 
 Dub forum on 23/11/14 but have had no reply yet:
 
 
 ---
 I read that the use of a branch spec like "~master" in 
 dub.json is deprecated. I also read that it could be 
 overriden on a per-project basis by editing the project's 
 dub.selections.json file but I can't find any information 
 about what is actually required in this file and whether any 
 corresponding changes need to be made to dub.json.
 
 I'm trying to use 'ncurses' which doesn't have a version 
 number, only "~master".
 ---
 
 Also, does anyone know how 'beta' the ncurses module 
 actually is, is anyone using it?
 
 Cheers
 
 Paul


 So, as far as I know there isn't any plan for versioning that 
 specific library. I've used it, however, and it's pretty 
 usable (as much as ncurses goes, at any rate).


 So do I manually add those source files to my program 
 (assuming the ncurses libs are installed) if compiling with 
 dmd rather than using dub?


 Bump!

 I need to use ncurses for some quick prototyping now but I 
 still can't get it to work. Can someone please spell out the 
 steps I need to take to get this going? I'm using dmd on a 
 linux mint box and have ncurses (and dev package) installed.

 What do I need to install and import exactly if I don't utilise 
 Dub?

 TIA

 Paul


I can't answer your question, but if you're just prototyping you 
could use Adam Ruppe's terminal.d until you get ncurses working.
https://github.com/adamdruppe/arsd/blob/master/terminal.d
Feb 10 2015
parent reply ketmar <ketmar ketmar.no-ip.org> writes:
On Tue, 10 Feb 2015 19:37:59 +0000, Meta wrote:


 I can't answer your question, but if you're just prototyping you could
 use Adam Ruppe's terminal.d until you get ncurses working.
 https://github.com/adamdruppe/arsd/blob/master/terminal.d


and i daresay that with 'terminal.d' there is no need in ncurses at all=20
(except if someone needs ncurses panels, but i can't imagine why).=
Feb 10 2015
parent reply "Paul" <paul example.com> writes:
On Tuesday, 10 February 2015 at 19:49:26 UTC, ketmar wrote:

 On Tue, 10 Feb 2015 19:37:59 +0000, Meta wrote:


 I can't answer your question, but if you're just prototyping 
 you could
 use Adam Ruppe's terminal.d until you get ncurses working.
 https://github.com/adamdruppe/arsd/blob/master/terminal.d


 and i daresay that with 'terminal.d' there is no need in 
 ncurses at all
 (except if someone needs ncurses panels, but i can't imagine 
 why).


Thanks both for the replies. Terminal.d looks as though it will 
do what I want but I'm familiar with using ncurses and could do 
without learning to use yet another api at the minute. 
Nevertheless, I had a quick look, but trying to create an 
instance of the Terminal struct like so:

Terminal myTerm = Terminal(ConsoleOutputType.cellular, 0, 1, 
null);

(which I think is the corrct way to do it!) gives me this error:

test.o: In function `_Dmain':
test.d:(.text._Dmain+0x13): undefined reference to 
`_D8terminal8Terminal6__initZ'
test.d:(.text._Dmain+0x3c): undefined reference to 
`_D8terminal8Terminal6__ctorMFNcE8terminal17ConsoleOutputTypeiiDFZAiZS8terminal8Terminal'
test.d:(.text._Dmain+0x6a): undefined reference to 
`_D8terminal8Terminal6__dtorMFZv'
collect2: error: ld returned 1 exit status
--- errorlevel 1

I have no idea how to fix that. Any suggestions please?
Feb 10 2015
next sibling parent reply "Adam D. Ruppe" <destructionator gmail.com> writes:
On Tuesday, 10 February 2015 at 20:50:28 UTC, Paul wrote:

 test.o: In function `_Dmain':
 test.d:(.text._Dmain+0x13): undefined reference to 
 `_D8terminal8Terminal6__initZ'


If you see 'undefined reference' it means some library wasn't 
passed to the compiler. Easiest fix is usually to add the .d 
files to the command line so:

dmd yourfile.d terminal.d

with both passed together should build successfully.

BTW only the first argument to Terminal() is required, the others 
have sane defaults.
Feb 10 2015
parent reply "Paul" <paul example.com> writes:
On Tuesday, 10 February 2015 at 20:57:43 UTC, Adam D. Ruppe wrote:

 On Tuesday, 10 February 2015 at 20:50:28 UTC, Paul wrote:

 test.o: In function `_Dmain':
 test.d:(.text._Dmain+0x13): undefined reference to 
 `_D8terminal8Terminal6__initZ'


 If you see 'undefined reference' it means some library wasn't 
 passed to the compiler. Easiest fix is usually to add the .d 
 files to the command line so:

 dmd yourfile.d terminal.d

 with both passed together should build successfully.

 BTW only the first argument to Terminal() is required, the 
 others have sane defaults.


Thank you Adam. Yes, I noted the default values, even if I don't 
understand what they do at present(!). I'm pretty sure I tried to 
pass both files to the compiler at one point but I had illegal 
characters in my source filename (test-terminal.d) which sent me 
off on another track! No matter, it works as expected now, so I 
can take it for a spin.
Feb 10 2015
parent reply "Adam D. Ruppe" <destructionator gmail.com> writes:
On Tuesday, 10 February 2015 at 21:11:14 UTC, Paul wrote:

 Yes, I noted the default values, even if I don't understand 
 what they do at present(!).


They allow overriding of the input/output files. fdIn normally 
refers to standard input, fdOut refers to standard output, and 
the getSizeOverride lets you provide a custom function instead of 
the default, which is to ask the operating system for the size of 
the terminal with ioctl.


I added those options to support my detachable.d program, which 
is like GNU Screen - it can detach from the terminal and keep 
running. Instead of talking straight to the actual terminal 
files, it talks through a socket to a helper program which lets 
it be reattached on a new terminal.
Feb 10 2015
parent reply "Paul" <paul example.com> writes:
On Tuesday, 10 February 2015 at 23:39:56 UTC, Adam D. Ruppe wrote:

 On Tuesday, 10 February 2015 at 21:11:14 UTC, Paul wrote:

 Yes, I noted the default values, even if I don't understand 
 what they do at present(!).


 They allow overriding of the input/output files. fdIn normally 
 refers to standard input, fdOut refers to standard output, and 
 the getSizeOverride lets you provide a custom function instead 
 of the default, which is to ask the operating system for the 
 size of the terminal with ioctl.


 I added those options to support my detachable.d program, which 
 is like GNU Screen - it can detach from the terminal and keep 
 running. Instead of talking straight to the actual terminal 
 files, it talks through a socket to a helper program which lets 
 it be reattached on a new terminal.


How do I get/process input? Looking at the source/doc it looks 
like I should be doing something like this for an inifinite loop 
breakable with Esc but it doesn't seem to work (in urxvt or a 
plain xterm):

dchar charIn;
while(charIn != '\U0000001b')
{
	auto myInput = RealTimeConsoleInput(&myTerm, 
ConsoleInputFlags.raw);
	charIn = myInput.getch();
}
Feb 11 2015
parent reply "Adam D. Ruppe" <destructionator gmail.com> writes:
On Wednesday, 11 February 2015 at 18:13:10 UTC, Paul wrote:

 How do I get/process input?


Construct the real time input struct outside your loop then use 
getch if you're only interested in the core keyboard ascii stuff 
or nextEvent if you want everything.

The esc key, in particular, is considered a non-character key 
event by terminal.d, so it will not be there on a simple call to 
getch(). (this might have been a mistake but is the way it is)

Search the code for "void handleEvent" to see an example 
function. There's various event types you can react to and to get 
the info, you do

auto specialized_event = generic_event.get!(InputEvent.Type.TYPE 
HERE);

and look at the members. character event has ev.character. 
noncharacter event has ev.key which is an enum, defined on line 
2057.

PasteEvent doesn't work perfectly so dont' rely on it. 
MouseEvent, if you opt into them, has buttons, x, y, and 
modifierState which might be available.

See the source for each struct to see more.



If you're happy with keys from the middle part of the keyboard, 
getch is the easiest way though, they are sent as simple dchars.

You can also fetch lines at a time with terminal.getline (it is 
on terminal rather than real time input because it is still 
conceptually line buffered (though the implementation turns that 
off to allow editing)).
Feb 11 2015
parent "Paul" <paul example.com> writes:
On Wednesday, 11 February 2015 at 18:37:49 UTC, Adam D. Ruppe 
wrote:

 On Wednesday, 11 February 2015 at 18:13:10 UTC, Paul wrote:

 How do I get/process input?


 Construct the real time input struct outside your loop then use 
 getch if you're only interested in the core keyboard ascii 
 stuff or nextEvent if you want everything.

 The esc key, in particular, is considered a non-character key 
 event by terminal.d, so it will not be there on a simple call 
 to getch(). (this might have been a mistake but is the way it 
 is)

 Search the code for "void handleEvent" to see an example 
 function. There's various event types you can react to and to 
 get the info, you do

 auto specialized_event = 
 generic_event.get!(InputEvent.Type.TYPE HERE);

 and look at the members. character event has ev.character. 
 noncharacter event has ev.key which is an enum, defined on line 
 2057.

 PasteEvent doesn't work perfectly so dont' rely on it. 
 MouseEvent, if you opt into them, has buttons, x, y, and 
 modifierState which might be available.

 See the source for each struct to see more.



 If you're happy with keys from the middle part of the keyboard, 
 getch is the easiest way though, they are sent as simple dchars.

 You can also fetch lines at a time with terminal.getline (it is 
 on terminal rather than real time input because it is still 
 conceptually line buffered (though the implementation turns 
 that off to allow editing)).


Perfect, thank you again for a thorough answer.
Feb 11 2015
prev sibling parent reply "Meta" <jared771 gmail.com> writes:
On Tuesday, 10 February 2015 at 20:50:28 UTC, Paul wrote:

 On Tuesday, 10 February 2015 at 19:49:26 UTC, ketmar wrote:

 On Tue, 10 Feb 2015 19:37:59 +0000, Meta wrote:


 I can't answer your question, but if you're just prototyping 
 you could
 use Adam Ruppe's terminal.d until you get ncurses working.
 https://github.com/adamdruppe/arsd/blob/master/terminal.d


 and i daresay that with 'terminal.d' there is no need in 
 ncurses at all
 (except if someone needs ncurses panels, but i can't imagine 
 why).


 Thanks both for the replies. Terminal.d looks as though it will 
 do what I want but I'm familiar with using ncurses and could do 
 without learning to use yet another api at the minute. 
 Nevertheless, I had a quick look, but trying to create an 
 instance of the Terminal struct like so:

 Terminal myTerm = Terminal(ConsoleOutputType.cellular, 0, 1, 
 null);

 (which I think is the corrct way to do it!) gives me this error:

 test.o: In function `_Dmain':
 test.d:(.text._Dmain+0x13): undefined reference to 
 `_D8terminal8Terminal6__initZ'
 test.d:(.text._Dmain+0x3c): undefined reference to 
 `_D8terminal8Terminal6__ctorMFNcE8terminal17ConsoleOutputTypeiiDFZAiZS8terminal8Terminal'
 test.d:(.text._Dmain+0x6a): undefined reference to 
 `_D8terminal8Terminal6__dtorMFZv'
 collect2: error: ld returned 1 exit status
 --- errorlevel 1

 I have no idea how to fix that. Any suggestions please?


Are you on Linux or Windows? That constructor is only defined on 
Posix-based systems.
Feb 10 2015
next sibling parent reply "H. S. Teoh via Digitalmars-d-learn" <digitalmars-d-learn puremagic.com> writes:
On Tue, Feb 10, 2015 at 09:05:06PM +0000, Meta via Digitalmars-d-learn wrote:

 On Tuesday, 10 February 2015 at 20:50:28 UTC, Paul wrote:


[...]

test.o: In function `_Dmain':
test.d:(.text._Dmain+0x13): undefined reference to
`_D8terminal8Terminal6__initZ'
test.d:(.text._Dmain+0x3c): undefined reference to
`_D8terminal8Terminal6__ctorMFNcE8terminal17ConsoleOutputTypeiiDFZAiZS8terminal8Terminal'
test.d:(.text._Dmain+0x6a): undefined reference to
`_D8terminal8Terminal6__dtorMFZv'
collect2: error: ld returned 1 exit status
--- errorlevel 1

I have no idea how to fix that. Any suggestions please?


 
 Are you on Linux or Windows? That constructor is only defined on
 Posix-based systems.


Judging by the name of the object file (test.o) and the name of the code
section (.text), I'd say this is definitely Posix. :-) So the question
is why that ctor isn't defined in spite of it being Posix.


T

-- 
Some ideas are so stupid that only intellectuals could believe them. -- George
Orwell
Feb 10 2015
parent "Meta" <jared771 gmail.com> writes:
On Tuesday, 10 February 2015 at 21:14:36 UTC, H. S. Teoh wrote:

 Judging by the name of the object file (test.o) and the name of 
 the code
 section (.text), I'd say this is definitely Posix. :-) So the 
 question
 is why that ctor isn't defined in spite of it being Posix.


 T


Heh, you are right. I only use D on Windows and since I mostly 
use VisualD I don't remember what the error messages look like.
Feb 10 2015
prev sibling parent "Paul" <paul example.com> writes:
On Tuesday, 10 February 2015 at 21:05:08 UTC, Meta wrote:

 On Tuesday, 10 February 2015 at 20:50:28 UTC, Paul wrote:

 On Tuesday, 10 February 2015 at 19:49:26 UTC, ketmar wrote:

 On Tue, 10 Feb 2015 19:37:59 +0000, Meta wrote:


 I can't answer your question, but if you're just prototyping 
 you could
 use Adam Ruppe's terminal.d until you get ncurses working.
 https://github.com/adamdruppe/arsd/blob/master/terminal.d


 and i daresay that with 'terminal.d' there is no need in 
 ncurses at all
 (except if someone needs ncurses panels, but i can't imagine 
 why).


 Thanks both for the replies. Terminal.d looks as though it 
 will do what I want but I'm familiar with using ncurses and 
 could do without learning to use yet another api at the 
 minute. Nevertheless, I had a quick look, but trying to create 
 an instance of the Terminal struct like so:

 Terminal myTerm = Terminal(ConsoleOutputType.cellular, 0, 1, 
 null);

 (which I think is the corrct way to do it!) gives me this 
 error:

 test.o: In function `_Dmain':
 test.d:(.text._Dmain+0x13): undefined reference to 
 `_D8terminal8Terminal6__initZ'
 test.d:(.text._Dmain+0x3c): undefined reference to 
 `_D8terminal8Terminal6__ctorMFNcE8terminal17ConsoleOutputTypeiiDFZAiZS8terminal8Terminal'
 test.d:(.text._Dmain+0x6a): undefined reference to 
 `_D8terminal8Terminal6__dtorMFZv'
 collect2: error: ld returned 1 exit status
 --- errorlevel 1

 I have no idea how to fix that. Any suggestions please?


 Are you on Linux or Windows? That constructor is only defined 
 on Posix-based systems.


Sorry I missed your post, I'm on Linux Mint 17.
Feb 10 2015