Ligatures for Perl and Julia and matlab Languages are confusing

[cems2]

Common Julia and matlab symbol combinations are
.- which JBMono renders •- turning the . into a bullet
... which JBMono renders . .. adding adding space between two of the dots in the ellipsis

I note that the .- in Julia and Matlab are part of family of symbol expressions that prefix a period before a symbol that include .+ .* ./ and .- of these only the .- one is modified to something that doesn't suggest it's intent, so the ligature seems inconsistent.

While not a ligature, the backslash and forward slash extend all the way to the edge of the character width allowing them to visually blend with the next character in what looks like a new ligature arrow-like symbol that obfuscates the intent /\ and \/ instead of / \ or \ / . Even worse Other characters also blend with these slashes such as /> to produce something unreconizable

note: While this is not unique to JBMono it is specifically detrimental for Developers, the target audience of JBMono. the backslash is the all important escape character in most languages.

[philippnurullin]

@cems2 Can you send me the version of IDE you using? The problem with ..should be solved in recent versions.

Understood the context of using .-, i will add the exclusion for this ligature.

The escape sequence ligature problem will be fixed in 1.0.2 #78

[cems2]

I am using two different IDEs. One is ATOM (using the JUNO plug in for Julia) , the other is simply the Julia REPL in the mac unix terminal, combined with emacs as an editor. In atom after some effort I figured out how to turn off Ligtatures by altering the CSS. It's all or nothing, so all ligatures are off now. This also means all ligatures are off for everything I edit in ATOM. In the mac terminal there is no configurable options to turn of ligatures. I also use BBEDIT (barebones software) as an IDE. on this one Ligatures are off by default. The problem is not with the IDE I think. It's just that two of the ligatures are inconvenient with Julia. The other thing that there is to dislike in how forward and back slashes merge with adjacent characters.

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On Jan 22, 2020, at 9:29 AM, philippnurullin ***@***.***> wrote: @cems2 <https://github.com/cems2> Can you send me the version of IDE you using? The problem with ..should be solved in recent versions. Understood the context of using .-, i will add the exclusion for this ligature. The escape sequence ligature problem will be fixed in 1.0.2 #78 <#78> — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#76?email_source=notifications&email_token=ACRAR7W5XHZZGVCVMHQGRIDQ7BX7DA5CNFSM4KJUS7JKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEJUHBLY#issuecomment-577269935>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACRAR7VLXTZLL5CPF75EGPTQ7BX7DANCNFSM4KJUS7JA>.

[philippnurullin]

The \/ & /\ ligatures will be removed in v 1.0.3.

[philippnurullin]

tonsky/FiraCode#670