> what is a *fast* way to strip chars unwanted from a string?
The replies so far assume you have an explicit list of the unwanted chars.
If instead you are starting with a list of conforming chars, and you
want to remove anything that does not conform, you need a slightly
different approach.
One way is to use 'trim twice:
good-chars: " abcdefhgijklmnopqrstuvwxyz"
target: "this: is a string!"
trim/with target trim/with copy target good-chars
== "this is a string"
Other ways include using parse with the complement of a bit set. But
that may not be forward compatible with R3
Sunanda.
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