CoCoA » CoCoA-5

20 Oct 2020

18:05 Design #1194: Rename HilbertBasisKer into LinKerHilbertBasis?

Now I'd have a slight preference in keeping the current name (it is convenient as it emphasise the "HilbertBasis" str... Anna Maria Bigatti

17:44 Design #1194: Rename HilbertBasisKer into LinKerHilbertBasis?

Is this a quick issue? If so, is it worth finishing it quickly?
John Abbott

18:05 Slug #875: Interpreter is too slow reading a big polynomial

A better workaround is to use @sum([...])@.
I have just tried a test of the form:... John Abbott

17:50 Support #916: use command: unhelpful error if you use := instead of ::=

The relevant source code seems to be @Parser::parseUseStatement@ around line 356 in @Parser.C@.
What should the b... John Abbott

17:12 Feature #1479: CoCoA release for linux: CoCoAInterpreter: with and without libreadline?

I have checked in my prototype... hope it is a good one! John Abbott

15:33 Feature #1479: CoCoA release for linux: CoCoAInterpreter: with and without libreadline?

I have tried testing with the current public version of CoCoA-5 for linux: it fails because the interpreter does not ... John Abbott

11:58 Feature #1479: CoCoA release for linux: CoCoAInterpreter: with and without libreadline?

I now have a new @cocoa5@ script for GNU/linux. I have developed it "blind", so it probably does not work correctly ... John Abbott

19 Oct 2020

19:59 Design #1508 (In Progress): Initial ring

A relevant line in the source code is @Interpreter.C:1212@ which contains:... John Abbott

11:51 Design #1508: Initial ring

The technically easiest solution would be start with the ring @ZZ@; while not exactly what was suggested, I suspect t... John Abbott

16 Oct 2020

15:48 Design #1495 (Feedback): Package exporting nothing?

I have checked in my code (after some _ad hoc_ testing).
I have slightly changed what we agreed via skype (so that t... John Abbott

15:42 Design #1495: Package exporting nothing?

I seem to have lost the test file I used for the revised package parser. Here is a short version:... John Abbott

15:36 Bug #1512 (Closed): Package with unexpected EOF

A package which ends prematurely produces an error, but the message could be better:... John Abbott

14 Oct 2020

22:07 Feature #1479: CoCoA release for linux: CoCoAInterpreter: with and without libreadline?

I have checked in the minor change to @Main.C@ which impl the @--do-nothing@ option.
John Abbott

21:54 Design #1504: OnlineHelp: XMLFileName

After discussing with Anna: the filenames are essential for the manual mechanism to work. So my idea to pass @istrea... John Abbott

14:43 Feature #674 (Rejected): Ring constructor: allow empty range for indices?

Anna Maria Bigatti

14:12 Feature #1509: RingElems with empty input

we want ... Anna Maria Bigatti

11:52 Feature #1509 (Closed): RingElems with empty input

In CoCoA-5 we have @RingElems@ and @RingElemList@.
The second function can produce an empty list (from input @"[]"@)... John Abbott

14:06 Bug #1505 (Closed): EmacsUI: fix "Go to Error C-c C-p"

Anna Maria Bigatti

13:58 Bug #1489 (Closed): Unhelpful error message for package followed by identifier (without dollar sign)

John Abbott

12:31 Bug #1489: Unhelpful error message for package followed by identifier (without dollar sign)

John Abbott wrote:
> I have added some tests to a new file called @test-package.cocoa5@.
> Not yet checked in: awai... Anna Maria Bigatti

13:19 Feature #101: rethrow in Try .. UponError .. EndTry

Have we used the idea in comment 4 in the CoCoA-5 tests?
I think probably not. If not, why not?
Solving the orig... John Abbott

12:11 Bug #1412: Emacs UI: font size

John Abbott wrote:
> I have made some improvement. Now "send region" should keep the font magnification.
I confi... Anna Maria Bigatti

13 Oct 2020

15:13 Design #1508: Initial ring

I'm not entirely sure how to achieve technically "start with no current ring":
* *(1)* use an extra flag to say no r... John Abbott

15:11 Design #1508 (In Progress): Initial ring

After lunch with Robbiano today...
The question of the initial ring in CoCoA-5 came up. There are two proposals to ... John Abbott

15:03 Bug #469: Emacs UI: keywords in multiline comments

I suggest documenting this behaviour, and then closing this issue.
*BUT* where should it be documented?
Anna po... John Abbott

15:00 Feature #674: Ring constructor: allow empty range for indices?

This was last considered 5 years ago. The problem has not arisen in this time (in my experience), so I think that it... John Abbott

12 Oct 2020

20:14 Feature #1479: CoCoA release for linux: CoCoAInterpreter: with and without libreadline?

I have made a first attempt at modifying the start-up script. It took me a lot longer than anticipated :-(
It is ... John Abbott

14:16 Feature #1479: CoCoA release for linux: CoCoAInterpreter: with and without libreadline?

It is not entirely clear to me how to make @--packageDir NoPackages@ work portably.
One solution is to make @NoPacka... John Abbott

11 Oct 2020

22:10 Feature #1479: CoCoA release for linux: CoCoAInterpreter: with and without libreadline?

I did a quick speed test: specifying as input @/dev/null@, and where the directory @NoPackages@ contains only @init.... John Abbott

10 Oct 2020

23:15 Feature #1479: CoCoA release for linux: CoCoAInterpreter: with and without libreadline?

An alternative solution is to ask the user to use an @install@ script: this script could then determine which executa... John Abbott

09 Oct 2020

21:24 Design #1504: OnlineHelp: XMLFileName

I have now added a fn @OpenXMLManual@ which tries to open the file, and throws a helpful exception if there is troubl... John Abbott

20:08 Design #1504 (In Progress): OnlineHelp: XMLFileName

I have changed @XMLFileName@ to return a @std::string@. Everything compiles and runs OK.
The next stage is to mak... John Abbott

20:36 Support #1507 (Closed): wordlist without OBSOLETE entries?

Currently @wordlist.txt@ contains also OBSOLETE/OBSOLESCENT entries.
Is this sensible? Shouldn't they be removed?
John Abbott

20:17 Slug #1506 (Closed): Remove XMLFileName from Main.C

@Main.C@ calls @OnLine::XMLFileName@, but I think probably should not.
Consider removing the call; and implement i... John Abbott

15:59 Feature #1293: Vim Plugin for CoCoA

Florian suggests putting a link to the github address somewhere evident on the download page for CoCoA-5 for linux.
... John Abbott

15:48 Design #1348 (Closed): cocoa5 script for releases

This was resolved some time ago by including in the @release-linux.sh@ script a check that the start-up script in the... John Abbott

15:48 Feature #1479 (In Progress): CoCoA release for linux: CoCoAInterpreter: with and without libreadline?

Decision: distrubution with two executables.
John does the cocoa-5 script
Anna does the release script (and the rel... Anna Maria Bigatti

14:17 Support #1450 (Closed): Release CoCoA-5.3.2

Anna Maria Bigatti

13:45 Feature #1487 (Closed): EOF for OpenIFile

Resolved: use the function *@IsAtEOF@* (which existed but was not documented).
John Abbott

11:54 Feature #1487: EOF for OpenIFile

I have improved the man page for @GetLine@ -- it no refers also to the page for @IsAtEOF@.
John Abbott

11:01 Bug #1505 (Feedback): EmacsUI: fix "Go to Error C-c C-p"

I resorted the lines and now gives the message in the bottom line.
Works fine on emacs 26 and 24. I expect it works... Anna Maria Bigatti

10:33 Bug #1505: EmacsUI: fix "Go to Error C-c C-p"

@string-to-number@ should be used instead.
But there are a few more things not working as before: the error text in ... Anna Maria Bigatti

10:32 Bug #1505 (Closed): EmacsUI: fix "Go to Error C-c C-p"

@string-to-int@ has been an obsolete function since Emacs 22.1, and it was removed in 26.1.
Fix code in @cocoa5.el@ Anna Maria Bigatti

08 Oct 2020

15:16 Design #1504: OnlineHelp: XMLFileName

I think changing the return type of @XMLFileName@ should be trivial (and not cause problems).
Changing the error m... John Abbott

15:15 Design #1504 (Closed): OnlineHelp: XMLFileName

In @OnlineHelp.C@ there is a fn @XMLFileName@ which should give the full path of the XML file.
Current this fn ret... John Abbott

14:16 Feature #1503: More flexible ring creation syntax (after use or ::=)

How flexible/limited should a new syntax be?
Should it be possible to make arbitrarily long extensions? Such as
... John Abbott

14:11 Feature #1503: More flexible ring creation syntax (after use or ::=)

We discussed this over lunch today.
JAA thinks that this is not incompatible with #657.
Which term order should... John Abbott

14:02 Feature #1503 (New): More flexible ring creation syntax (after use or ::=)

This request comes from Florian Walsh.
The suggestion is permit the following syntax:... John Abbott

13:57 Feature #606 (In Progress): Evaluate in ring operator (was called :: in CoCoA-4)

I think this has largely been resolved by @RingElem@ or @RingElems@ or @RingElemList@.
Right?
John Abbott

13:54 Feature #1293: Vim Plugin for CoCoA

Assuming that this works reasonably well, it would be nice to release it with CoCoA-5.
When? Next version? The one... John Abbott

13:48 Design #637: Undesirable consequence of automatic mapping of RingElems?

I have just tried the example in the description. The equality test gives @ERR::MixedRings@, which I think is probab... John Abbott

12:32 Bug #1502: SystemCommand in Microsoft version

Our code looks to be correct (in agreement with the description given on website @cpprefeence.com@).
At the moment... John Abbott

12:29 Bug #1502 (In Progress): SystemCommand in Microsoft version

Andraschko reports that @SystemCommand@ does not work properly in the Microsoft release. John Abbott

07 Oct 2020

12:02 Design #1501: testing for syntax errors

I am quite undecided about this.
For "run-time" errors we have the possibility of handling them via @try...endtry@... John Abbott

11:55 Design #1501 (Rejected): testing for syntax errors

In CoCoA-5 test files, computational errors can be captured inside a @try...entry@ block,
but syntax errors cannot.
... John Abbott

06 Oct 2020

15:53 Design #1493 (Resolved): Automatic ring mapping in assignment?

I have changed the impl of @mySetEntry@ so that it tries to auto map the ring elem. Some _ad hoc_ tests pass.
I h... John Abbott

11:59 Support #1498 (In Progress): Export many names or just one?

We have the habit of exporting a single name at a time, but I see no harm in allowing several names to be exported by... John Abbott

05 Oct 2020

16:33 Feature #1487: EOF for OpenIFile

oh thanks, did not now that this function exists.
I also think that an error is appropriate, since there is no more ... Julian Danner

16:18 Feature #1487: EOF for OpenIFile

So now that *@IsAtEOF@* is visible, should attempting to read beyond EOF trigger an error?
Probably "yes".
Opinio... John Abbott

16:13 Feature #1487 (Resolved): EOF for OpenIFile

Is seems that the function *@IsAtEOF@* was not in the CoCoA manual; it is now!
This should surely resolve the prob... John Abbott

15:48 Feature #1487: EOF for OpenIFile

I have improved the manual page for @GetLine@.
I have not understood why an empty string is returned when EOF has ... John Abbott

15:37 Feature #1487 (In Progress): EOF for OpenIFile

According to the CoCoA-5 manual, *@GetLine@* returns a line *without* the following end-of-line character (ascii code... John Abbott

15:54 Support #1459 (Feedback): Manual entries for mod and div

John Abbott

03 Oct 2020

17:51 Support #1498 (Closed): Export many names or just one?

The CoCoA manual says that @export@ expects just a single name; the code will accept a comma-separated list.
Chang... John Abbott

17:20 Bug #1489: Unhelpful error message for package followed by identifier (without dollar sign)

I have added some tests to a new file called @test-package.cocoa5@.
Not yet checked in: awaiting comments on #1495 a... John Abbott

17:08 Design #1495: Package exporting nothing?

I am writing tests for @package@, and have a question.
If the input contains something like *@export abc,skip;@*,
a... John Abbott

02 Oct 2020

21:05 Design #1495: Package exporting nothing?

Prototype still needs to be cleaned... not today! John Abbott

14:22 Design #1495: Package exporting nothing?

Here are the tests we should make:
* *(1)* package with no @export@ commands (warning, as now)
* *(2)* package w... John Abbott

14:03 Design #1495: Package exporting nothing?

I have written a first prototype. It compiles and seems to do the right thing, but I must do some more testing.
The... John Abbott

11:31 Design #1495 (In Progress): Package exporting nothing?

From #1477 point (C)
proposed syntax *@export skip;@* Anna Maria Bigatti

11:30 Design #1495 (Closed): Package exporting nothing?

It may be useful to make a package exporting no function: currently it gives a warning.
Choose an explicit syntax ... Anna Maria Bigatti

16:38 Bug #1489 (Resolved): Unhelpful error message for package followed by identifier (without dollar sign)

It seems that the root cause was in @LexemeClass@... which was poorly written (by me?).
I have rewritten it, and all... John Abbott

12:00 Design #1496: Use "special" names for variables inside tests

Here is a list of the tests: we can remove the ones which have been checked/updated.... John Abbott

11:54 Design #1496: Use "special" names for variables inside tests

*COPIED FROM COMMENT 3 in #1294*
One possibility is simply to use names which start with underscore: this is allow... John Abbott

11:53 Design #1496 (In Progress): Use "special" names for variables inside tests

To avoid problems with name clashes the names of variables inside test scripts these variable should have "special" n... John Abbott

11:58 Feature #1415: thmproving package

John Abbott wrote:
> Any news about this package?
> Can we close this issue quickly and easily?
ok, working on i... Anna Maria Bigatti

11:43 Support #692 (Rejected): Local variables hiding out ones at top level

After a Skype discussion we have decided to leave things as they are: while not perfect (and sometimes annoying) the ... John Abbott

07:54 Bug #1200 (Closed): Package exported function: wrong package name

John Abbott wrote:
> Is this even a bug?
> In my installation the symbol *@Gens_Ker_Mod_Hom@* is indeed exported by... Anna Maria Bigatti

07:36 Design #1493: Automatic ring mapping in assignment?

John Abbott wrote:
> My "gut feeling" is that it should work... I expect it to work (perhaps because the destination... Anna Maria Bigatti

07:24 Design #1477: Packages: questions from Andraschko

John Abbott wrote:
> Regarding point *(C)* _why must a package export at least 1 function?_
> We could also allow s... Anna Maria Bigatti

30 Sep 2020

17:36 Bug #1489: Unhelpful error message for package followed by identifier (without dollar sign)

It looks like the error mesg was generated by @Parser.H:159@.
There is also a comment in the code referring to #673.... John Abbott

17:29 Design #1493: Automatic ring mapping in assignment?

My "gut feeling" is that it should work... I expect it to work (perhaps because the destination ring is well defined?... John Abbott

11:43 Design #1477: Packages: questions from Andraschko

Regarding point *(C)* _why must a package export at least 1 function?_
A work-around would be to create a function... John Abbott

28 Sep 2020

16:40 Design #1493 (Closed): Automatic ring mapping in assignment?

We have partly implemented automatic conversion of ring elements (_e.g._ in multiplication).
Should it also work for... John Abbott

15:08 Support #1486 (In Progress): Emacs UI: indentation in a package

I suspect that the relevant part to be changed is the defn of *@cocoa5-beg-block-re@* around line 286 in @cocoa5.el@.... John Abbott

23 Sep 2020

11:22 Bug #1200: Package exported function: wrong package name

Is this even a bug?
In my installation the symbol *@Gens_Ker_Mod_Hom@* is indeed exported by a package called *@expe... John Abbott

11:19 Bug #1200: Package exported function: wrong package name

The relevant line appears to be *@Interpreter.C:4289@*.
Here is a test input which triggers the bug:... John Abbott

11:09 Bug #1200: Package exported function: wrong package name

I am postponing this because it is not so important/urgent, and looks like it might be quick tricky to solve :-/
John Abbott

11:06 Support #692 (In Progress): Local variables hiding out ones at top level

I think I now prefer not to issue a warning in the examples given here.
If CoCoA issues too many warnings then the u... John Abbott

10:42 Bug #1294 (Resolved): CoCoA-5 tests may fail even if executed correctly

I have implemented option *(A)* and checked it in. I chose *(A)* because it is relatively simple to implement.
Wait... John Abbott