Using "_repeat" -- to support such use leading underscore will not
appear in external name (to get one you need to double it, the
same as now).
Now the rule gets confusing to me. Underscores in front of a letter does
not make the underscore special, so the underscore remains in the
identifier.
This rule applied to _repeat give _repeat and not repeat as wanted.
I would rather understand that for such cases one would have to write
repeat_ in a spad program to refer to an external repeat.
Anyway, that actual bad thing is the choice of _ as an escape character.
But I would consider switching to \ instead of _ not to be a good
choice. There are quite nice operators like /\ and \/ that look quite
natural in a mathematical context. Well, we have no unicode yet.
Ralf
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