Hello Waldek, *,
Simple manner to explain:
parseAndEvalToString str ==
$collectOutput:local := true
$outputLines: local := nil
$IOindex: local := nil
v := CATCH('SPAD_READER, CATCH('top_level, parseAndEvalStr str))
v = 'restart => ['"error"]
NREVERSE $outputLines
parseAndEvalToStringEqNum str ==
$collectOutput:local := true
$outputLines: local := nil
v := CATCH('SPAD_READER, CATCH('top_level, parseAndEvalStr str))
v = 'restart => ['"error"]
NREVERSE $outputLines
What about returning more than just "error"? Something like '"Error:"
str is not recognized in FriCAS'
Personally I obtain this (in a customized FriCAS terminal) in
fricas-vscode, an addon:
-> sqrtt(2)
error
->
?
In fact sqrtt(2) is to be more expressive and simpler to
understand.That was something else.
Just "error" is very special I find, I more used to:
There are no library operations named sqrtt
Use HyperDoc Browse or issue
)what op sqrtt
to learn if there is any operation containing " sqrtt " in its name.
Cannot find a definition or applicable library operation named
sqrtt with argument type(s)
PositiveInteger
Perhaps you should use "@" to indicate the required return type,
or "$" to specify which version
of the function you need.
The real command was CTRL-D
Greg
PS / Very very very bad afternoon.
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