#9705: trouble with long lines in notebook magma mode
------------------------+---------------------------------------------------
Reporter: nbruin | Owner: jason, was
Type: defect | Status: new
Priority: major | Milestone: sage-4.5.2
Component: notebook | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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The following are three cells in a magma-mode notebook worksheet, together
with output (there should be none). Each is valid magma code, but the
first one produces an error. The other two examples show that shortening
the line by changing its content or by placing a line break make the error
go away.
{{{
_<x>:=PolynomialRing(Rationals());
repeat
g:=3*b*x^4+18*c*x^3-6*b^2*x^2-6*b*c*x-b^3-9*c^2 where
b:=Random([-10..10]) where c:=Random([-10..10]);
until Roots(g) ne [];
///
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "_sage_input_6.py", line 10, in <module>
exec compile(u"print _support_.syseval(magma,
u'_<x>:=PolynomialRing(Rationals());\\nrepeat\\n
g:=3*b*x^4+18*c*x^3-6*b^2*x^2-6*b*c*x-b^3-9*c^2 where b:=Random([-10..10])
where c:=Random([-10..10]);\\nuntil Roots(g) ne [];', __SAGE_TMP_DIR__)" +
'\n', '', 'single')
File "", line 1, in <module>
File "/usr/local/sage/4.4.4/local/lib/python2.6/site-
packages/sagenb-0.8-py2.6.egg/sagenb/misc/support.py", line 473, in
syseval
return system.eval(cmd, sage_globals, locals = sage_globals)
File "/usr/local/sage/4.4.4/local/lib/python2.6/site-
packages/sage/interfaces/magma.py", line 523, in eval
raise RuntimeError, "Error evaluating Magma code.\nIN:%s\nOUT:%s"%(x,
ans)
RuntimeError: Error evaluating Magma code.
IN:_<x>:=PolynomialRing(Rationals());
repeat
g:=3*b*x^4+18*c*x^3-6*b^2*x^2-6*b*c*x-b^3-9*c^2 where
b:=Random([-10..10]) where c:=Random([-10..10]);
until Roots(g) ne [];
OUT:
>> load
"/home/nobody/.sage//temp/ella.cecm.sfu.ca/21960//interface//tmp21960"
^
User error: bad syntax
>> until Roots(g) ne [];
^
User error: bad syntax
}}}
{{{
_<x>:=PolynomialRing(Rationals());
repeat
g:=x^3+b*x+c where b:=Random([-10..10]) where c:=Random([-10..10]);
until Roots(g) ne [];
///
}}}
{{{
_<x>:=PolynomialRing(Rationals());
repeat
g:=3*b*x^4+18*c*x^3-6*b^2*x^2-6*b*c*x-b^3-9*c^2
where b:=Random([-10..10]) where c:=Random([-10..10]);
until Roots(g) ne [];
///
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9705>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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