New issue: typo in sclang argument construction for scide_scel, and failure of correct argument to work with EMACS on MacOS

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Thanks for answering. To find out why EMACS is not responding in my system, I tested SCClassLibrary compilation behavior with the -i command option, after adding postln messages to StartUp in the initClass methods of ScIDE the standard SCClassLibrary and 'EmacsInterface in the scel extension. This makes it possible to trace through the output of the terminal execution of sclang which parts of the library are executed, in order to distinguish between the 4 possible cases:

  1. sclang tries to compile both ScIDE and EmacsInterface. (results in ERROR: Duplicates found, and sclang is unresponsive).
  2. sclang compiles only the ScIDE class (works in QT IDE, is unresponsive in EMACS)
  3. sclang compiles only the EmacsInterface class (works in EMACS, does not work in QT IDE).
  4. sclang compiles none of the two interface libs. (sclang compiles, but is unresponsive both in QT IDE and in EMACS).

Also, regarding the -i option settings, @jamshark70 noted that the option for qt should be -i scqt (see comments to How to switch back and forth from SC_IDE to EMACS on MacOS? )
Here are the results of my tests from the QT IDE and from the command line, following your instructions. I test here both cases: 1. With scel directory placed in Extensions and named xscel and 2. with scel directory named scide_scel. I test both of these from the QT IDE and from the command line, following the method which you suggested, with 3 options (!): -i scel, -i scqt and -i scide. While -i scide was not mentioned, it serves here to test what happens when an arbitrary non-matching option is given.
I tested the following 10 cases in all, listed in the table below together with the resulting behavior, and whether the EMACS interface classes are compiled in the SCClassLibrary. (Note: xscel and scide_scel are the names given to the scel directory placed inside Extensions):

| No.| dir. name  | command arg/IDE  | RESULT       | Libs compiled  |
| 1  | xscel      | -i scel          | compiles OK  | EmacsInterface | 
| 2  | xscel      | -i scqt          | Discrepancy  | NONE           |
| 3  | xscel      | -i scide         | compiles OK  | EmacsInterface |
| 4  | xscel      | QT IDE           | Discrepancy  | NONE           |
| 5  | xscel      | EMACS            | compiles OK  | EmacsInterface |
| 6  | scide_scel | -i scel          | compiles OK  | EmacsInterface |
| 7  | scide_scel | -i scqt          | compiles OK  | ScIDE          |
| 8  | scide_scel | -i scide         | compiles OK  | NONE !!!!!!!!! |
| 9  | scide_scel | QT IDE           | compiles OK  | ScIDE |
| 10 | scide_scel | EMACS            | compiles OK  | NONE !!!!!!!!! |

Interestingly, while with directory named scide_scel, the command

/Applications/SuperCollider/SuperCollider.app/Contents/MacOS/sclang -i scel

compiles the EmacsInterface on terminal, the same command fails to compile it on EMACS. I checked this through the output of sclang on the terminal vs. the EMACS post window, and cross-checked that the command used by EMACS to create the sclang process was identical to the above, by running

ps -ef | grep sclang

I cannot explain this - and ask for your help here.

Conclusions:

A. scel folder named something other than scide_scel

  1. EMACS can be used
  2. QT IDE cannot be used.
  3. -i scel and -i scide compile EmacsInterface while -i scqt tries to compile both interfaces.

B. scel folder named scide_scel

  1. QT IDE can be used.
  2. EMACS cannot be used.
  3. -i scel compiles EmacsInterface on command line, but none of the interfaces on EMACS. -i scide compiles none of the interfaces on command line. -i scqt compiles the ScIDE interface on command line.

I would be very grateful if someone else could test EMACS vs QT IDE behavior on MACOS with the scide_scel folder, as I currently cannot find any other explanation for the above problem. In the PS below I add a hint about another possible cause of the problem - namely that the sclang process does not connect to EMACS after it compiles, but I cannot debug this myself.

Thank you very much in advance.

Iannis Zannos

PS: The output of the terminal command and the corresponding command run on emacs are listed below for reference:

  1. terminal command:
/Applications/SuperCollider/SuperCollider.app/Contents/MacOS/sclang -i scel

Output of above command:

compiling class library...
	Found 850 primitives.
	Compiling directory '/Applications/SuperCollider/SuperCollider.app/Contents/Resources/SCClassLibrary'
	Compiling directory '/Users/iani/Library/Application Support/SuperCollider/Extensions'
	Compiling directory '/Users/iani/Library/Application Support/SuperCollider/downloaded-quarks/Vowel'
	Compiling directory '/Users/iani/Library/Application Support/SuperCollider/downloaded-quarks/Dirt-Samples'
	Compiling directory '/Users/iani/Library/Application Support/SuperCollider/downloaded-quarks/SuperDirt'
	numentries = 995941 / 14949774 = 0.067
	6033 method selectors, 2478 classes
	method table size 16059808 bytes, big table size 119598192
	Number of Symbols 13599
	Byte Code Size 412543
	compiled 445 files in 0.91 seconds

Info: 5 methods are currently overwritten by extensions. To see which, execute:
MethodOverride.printAll

compile done
localhost : setting clientID to 0.
internal : setting clientID to 0.
Emacs: No communication FIFO available.
Class tree inited in 0.01 seconds
Emacs Interface was compiled
  1. Emacs command - identical to above according to ps -ef | grep sclang

Output posted on EMACS SCLang Postbuffer:

compiling class library...
	Found 850 primitives.
	Compiling directory '/Applications/SuperCollider/SuperCollider.app/Contents/Resources/SCClassLibrary'
	Compiling directory '/Users/iani/Library/Application Support/SuperCollider/Extensions'
	Compiling directory '/Users/iani/Library/Application Support/SuperCollider/downloaded-quarks/Vowel'
	Compiling directory '/Users/iani/Library/Application Support/SuperCollider/downloaded-quarks/Dirt-Samples'
	Compiling directory '/Users/iani/Library/Application Support/SuperCollider/downloaded-quarks/SuperDirt'
	numentries = 978819 / 14467250 = 0.068
	5905 method selectors, 2450 classes
	method table size 15717600 bytes, big table size 115738000
	Number of Symbols 13289
	Byte Code Size 401989
	compiled 435 files in 0.84 seconds

Info: 5 methods are currently overwritten by extensions. To see which, execute:
MethodOverride.printAll

compile done
localhost : setting clientID to 0.
internal : setting clientID to 0.
Class tree inited in 0.01 seconds

The missing line

Emacs Interface was compiled

indicates that EMACS failed to compile the library - although the problem may be that after sclang compilation, emacs fails to connect to the sclang process and thus cannot post any messages from sclang after startup. Could that be the problem?

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