[Cuis-dev] Parser gets confused when using $| in binary selectors

Luciano Notarfrancesco luchiano at gmail.com
Fri May 13 05:59:11 PDT 2022


If you don't mind, I think these printOns look better (either one)

On Fri, May 13, 2022 at 2:36 AM Luciano Notarfrancesco <luchiano at gmail.com>
wrote:

> Oh, great, thanks! I was just thinking that “1@(-1)” could have been a
> better choice for the fix, and that maybe we should have a preference to
> avoid overwriting timestamp and other people’s initials when we do trivial
> changes like this.
>
>
> On Fri, 13 May 2022 at 3:41 AM Juan Vuletich <JuanVuletich at zoho.com>
> wrote:
>
>> Thanks Folks!
>>
>> Luciano, I just pushed your changes. I also found an instance of '\\-'
>> that I fixed too. There are several changes required for optional packages
>> in the Cuis-Smalltalk organization. Will push them tomorrow.
>>
>> WRT to Decompiler, decompiled code is actually OK, with a space after
>> binary selectors. What was wrong was the #storeString of literal Points.
>> Fixed Point>>#printOn: for that. Now DecompilerTests pass.
>>
>> Cheers!
>>
>>
>> On 5/9/2022 3:21 PM, Luciano Notarfrancesco via Cuis-dev wrote:
>>
>> Martin,
>> Thanks for the very detailed explanation! I went ahead and replaced '@-'
>> with '@ -' in the image and the tests. There are still 10 tests producing
>> errors because the decompiler decompiles it without the space, tho.
>>
>>
>> On Mon, May 9, 2022 at 5:04 PM Martin McClure <martin at hand2mouse.com>
>> wrote:
>>
>> The ANSI Smalltalk grammar says that "@-" should be a valid binary
>> selector, and would require whitespace in "1@ -1" to interpret the
>> argument as a literal negative one.
>>
>> The Blue Book grammar, though, does not allow "@-" as a binary selector.
>> The Blue Book grammar, as printed, also does not allow "," as a binary
>> selector, even though that was clearly used as a binary selector in
>> Smalltalk-80. The Blue Book grammar also does not talk about whitespace at
>> all, even though that is clearly required in some places, so the Blue Book
>> is a bit fuzzier than one would want as a grammar reference.
>>
>> Going with ANSI-like grammar and putting a space in expressions like "1
>> @- 1" makes more sense to me. Allows more valid selectors, and the code is
>> more readable with the whitespace.
>>
>> Regards,
>> -Martin
>>
>> On 5/9/22 03:48, Luciano Notarfrancesco via Cuis-dev wrote:
>>
>> After this change '1 at -1' is parsed as a binary message #@-, and this
>> causes some base image tests to fail. Should we add a space between @ and
>> -1 or should we fix the parser?
>>
>> On Fri, May 6, 2022 at 1:56 PM Luciano Notarfrancesco <luchiano at gmail.com>
>> wrote:
>>
>> That was quick. Thanks a lot!
>>
>> On Fri, 6 May 2022 at 8:55 PM Juan Vuletich <JuanVuletich at zoho.com>
>> wrote:
>>
>> On 5/6/2022 10:48 AM, Luciano Notarfrancesco via Cuis-dev wrote:
>>
>> I’m not sure I was clear, I meant a method implementing those messages,
>> not sending those messages.
>>
>> On Fri, 6 May 2022 at 1:22 PM Luciano Notarfrancesco <luchiano at gmail.com>
>> wrote:
>>
>> I’m getting “Argument name expected” when trying to compile a method with
>> selector <|. On the other hand, |>, | and || all compile fine as binary
>> selectors, but || breaks syntax highlighting.
>>
>>
>> Sure. Fixes at GitHub now.
>>
>> A small detail: Now an empty temporal declaration `||` is parsed as a
>> binary selector, and therefore marked as invalid. Not a big deal. We'd just
>> remove any such.
>>
>> Cheers,
>>
>> --
>> Juan Vuletichwww.cuis-smalltalk.orghttps://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Devhttps://github.com/jvuletichhttps://www.linkedin.com/in/juan-vuletich-75611b3https://independent.academia.edu/JuanVuletichhttps://www.researchgate.net/profile/Juan-Vuletichhttps://patents.justia.com/inventor/juan-manuel-vuletichhttps://twitter.com/JuanVuletich
>>
>>
>>
>>
>>
>> --
>> Juan Vuletichwww.cuis-smalltalk.orghttps://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Devhttps://github.com/jvuletichhttps://www.linkedin.com/in/juan-vuletich-75611b3https://independent.academia.edu/JuanVuletichhttps://www.researchgate.net/profile/Juan-Vuletichhttps://patents.justia.com/inventor/juan-manuel-vuletichhttps://twitter.com/JuanVuletich
>>
>>
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