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parse unicode forall and exists as identifiers #42314

Merged
merged 9 commits into from
Oct 4, 2021
Merged

parse unicode forall and exists as identifiers #42314

merged 9 commits into from
Oct 4, 2021

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willow-ahrens
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@willow-ahrens willow-ahrens commented Sep 19, 2021 •
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A proposed fix to to #19012, allowing ∀ and ∃ to be parsed as identifier characters, just like ∑, ∫, ⋃, or Π.

@stevengj stevengj added needs news A NEWS entry is required for this change parser Language parsing and surface syntax unicode Related to unicode characters and encodings labels Sep 19, 2021
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I'm in favor. No one has proposed a convincing infix usage for these AFAICT.

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stevengj reviewed Sep 20, 2021
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@stevengj stevengj removed the needs news A NEWS entry is required for this change label Sep 20, 2021
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add pr to news
319d27c 
Co-authored-by: Steven G. Johnson <stevenj@mit.edu>
@JeffBezanson JeffBezanson added the triage This should be discussed on a triage call label Sep 20, 2021
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Triage approves, and suggests adding U+2204 "there does not exist" as well.

@JeffBezanson JeffBezanson removed the triage This should be discussed on a triage call label Sep 30, 2021
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I've added the "not exists" (∄) character. I was unable to find a "not forall" character, and upon reflection, I'm unsure what it would even look like.

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To make the conclusion of my last comment a little more clear: I believe this PR is ready for another review or a merge.

@vchuravy vchuravy merged commit 690517a into JuliaLang:master Oct 4, 2021
@willow-ahrens willow-ahrens mentioned this pull request Oct 7, 2021
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LilithHafner pushed a commit to LilithHafner/julia that referenced this pull request Feb 22, 2022
@willow-ahrens @stevengj @LilithHafner
parse unicode forall and exists as identifiers (JuliaLang#42314)
e1764c3 
Co-authored-by: Steven G. Johnson <stevenj@mit.edu>
LilithHafner pushed a commit to LilithHafner/julia that referenced this pull request Mar 8, 2022
@willow-ahrens @stevengj @LilithHafner
parse unicode forall and exists as identifiers (JuliaLang#42314)
e6876b3 
Co-authored-by: Steven G. Johnson <stevenj@mit.edu>
@savq savq mentioned this pull request Jun 20, 2023
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