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Add . to envref
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missed this in the PR
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@rm-hull
rm-hull committed Jan 31, 2024
1 parent 46cf731 commit 3fd7973
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2 changes: 1 addition & 1 deletion doc/basic-usage.md
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Expand Up @@ -174,7 +174,7 @@ as follows:

* _**<function>** ::= envref expression | envref "(" <empty> | expression { "," expression } ")"._

* _**<envref>** ::= letter { letter | digit | "_" }._
* _**<envref>** ::= letter { letter | digit | "_" | "." }._

* _**<var>** ::= envref._

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