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The IUCr CIF core dictionary
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drel: interpretation of the geom_*() functions #418

Closed vaitkus closed 1 year ago

vaitkus commented 1 year ago

Functions geom_angle(...), geom_bond(...), geom_contact(...), geom_torsion(...) are called in dREL code, but do not seem to be defined anywhere. Are these considered builtin functions or are they simply not defined yet?

jamesrhester commented 1 year ago

These are "dotted assignments" which are not documented in the original dREL paper but are in the forthcoming Vol G chapter on dREL. See dotlist_assign in the annotated grammar.

vaitkus commented 1 year ago

Oh, I see. Thank you for clarifying.