#11621: Preparser could accomodate multiline input and continuation lines
------------------------------+---------------------------------------------
Reporter: rbeezer | Owner: was
Type: enhancement | Status: new
Priority: minor | Milestone: sage-4.7.2
Component: user interface | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
------------------------------+---------------------------------------------
It would be an improvement to have the preparser recognize when an input
line follows Python conventions for multiline input via Python's rules for
continuation lines and mechanisms for indicating continuation lines in
doctests, etc (namely "..." and perhaps soon "....:"). If you paste the
following into a command-line session:
{{{
T(r, t) = [r^2,
... t^2]
}}}
the result is:
{{{
sage: T(r, t) = [r^2,
------------------------------------------------------------
File "<ipython console>", line 1
__tmp__=var("r,t"); T =
symbolic_expression([r**Integer(2),).function(r,t)
^
SyntaxError: invalid syntax
sage: ... t^2]
------------------------------------------------------------
File "<ipython console>", line 1
... t**Integer(2)]
^
SyntaxError: invalid syntax
}}}
Some discussion at
http://groups.google.com/group/sage-
devel/browse_thread/thread/81a3cce1ebfefd0e
See related #10458.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11621>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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