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Feature request: Expose `ellipsis?' from

From: Marc Nieper-Wißkirchen
Subject: Feature request: Expose `ellipsis?' from
Date: Wed, 14 Nov 2018 14:16:22 +0100

Guile includes a mechanism to specify a custom ellipsis for `syntax-case' macros. For macro writers it would be nice if there were a way to check whether a given identifier is the current (custom) ellipsis.

The `ellipsis?' procedure in does exactly this, but it isn't available to user code. Re-implementing it is not possible without accessing internal details like the special identifier #{ $sc-ellipsis }# and without resorting to hacks.

Thus, I would like to ask to add `ellipsis?' to the list of procedures exported by Guile (like `identifier?` or `bound-identifier=?` already are).

-- Marc

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