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Fix grammar for arbitrary equality comparisons in dependency specifiers #1969

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Merged
ncoghlan merged 2 commits into from
Dec 4, 2025
Merged

Fix grammar for arbitrary equality comparisons in dependency specifiers #1969

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9daa2ef
Fix grammar for arbitrary equality comparisons in version specifiers
notatallshaw Dec 2, 2025
5cabdcb
Merge branch 'main' into fix-arbitrary-equality-grammar
notatallshaw Dec 4, 2025
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6 changes: 4 additions & 2 deletions source/specifications/dependency-specifiers.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -63,7 +63,7 @@ Versions may be specified according to the rules of the
:ref:`Version specifier specification <version-specifiers>`. (Note:
URI is defined in :rfc:`std-66 <3986>`)::

version_cmp = wsp* '<' | '<=' | '!=' | '==' | '>=' | '>' | '~=' | '==='
version_cmp = wsp* '<=' | '<' | '!=' | '===' | '==' | '>=' | '>' | '~='
version = wsp* ( letterOrDigit | '-' | '_' | '.' | '*' | '+' | '!' )+
version_one = version_cmp version wsp*
version_many = version_one (',' version_one)* (',' wsp*)?
Expand Down Expand Up @@ -339,7 +339,7 @@ Complete Grammar
The complete parsley grammar::

wsp = ' ' | '\t'
version_cmp = wsp* <'<=' | '<' | '!=' | '==' | '>=' | '>' | '~=' | '==='>
version_cmp = wsp* <'<=' | '<' | '!=' | '===' | '==' | '>=' | '>' | '~='>
version = wsp* <( letterOrDigit | '-' | '_' | '.' | '*' | '+' | '!' )+>
version_one = version_cmp:op version:v wsp* -> (op, v)
version_many = version_one:v1 (',' version_one)*:v2 (',' wsp*)? -> [v1] + v2
Expand Down Expand Up @@ -529,6 +529,8 @@ History
- August 2025: The suggested name validation regex was fixed to match the field
specification (it previously finished with ``$`` instead of ``\Z``,
incorrectly permitting trailing newlines)
- December 2025: Ensure ``===`` before ``==`` in grammar, to allow arbitrary
equality comparisons to be parsed.


References
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