#12372: maxima.eval('1+1;;') hangs
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Reporter: kcrisman | Owner: was
Type: defect | Status: new
Priority: minor | Milestone:
Component: interfaces | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Comment(by nbruin):
One way of looking at this example is that it's two commands: A
grammatical and an erroneous one. The pexpect interface for maxima does
not seem to support parsing the output of multiple commands:
{{{
sage: maxima.eval("1+2;3+4;")
'3(%o17)7'
}}}
only a little better:
{{{
sage: from sage.interfaces.maxima_lib import maxima
sage: sage: maxima.eval("1+2;3+4;")
'37'
sage: maxima.eval("1+2;;")
'3'
}}}
This could be as easy as replacing ";<any whitespace>*;" by ";", but I'm
not sure the slow-down of the extra regex is worth catching this corner-
case.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12372#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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