#14040: Configurable "tall list" output style
--------------------------------+-------------------------------------------
Reporter: vbraun | Owner: jason
Type: enhancement | Status: new
Priority: major | Milestone: sage-5.7
Component: misc | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Volker Braun | Merged in:
Dependencies: | Stopgaps:
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Changes (by {'newvalue': u'Volker Braun', 'oldvalue': ''}):
* author: => Volker Braun
Old description:
> The displayhook pretty-prints lists/tuples of matrices in a readable way:
> {{{
> sage: m = random_matrix(GF(5),2)
> sage: [ m, m^2, m^3 ]
> [
> [1 4] [4 2] [3 0]
> [2 2], [1 2], [0 3]
> ]
> }}}
> But this is hardcoded to only apply to matrix types:
> {{{
> sage: MatrixGroup([m,m^2,m^3]).gens()
> [[1 4]
> [2 2], [4 2]
> [1 2], [3 0]
> [0 3]]
> }}}
> This ticket aims to add a `_repr_option(key)` method to **parents** to be
> able to return meta-information on the `_repr_()` output. In particular,
> `_repr_option('element_ascii_art')` will return a boolean that switches
> between the list display hooks.
New description:
The displayhook pretty-prints lists/tuples of matrices in a readable way:
{{{
sage: m = random_matrix(GF(5),2)
sage: [ m, m^2, m^3 ]
[
[1 4] [4 2] [3 0]
[2 2], [1 2], [0 3]
]
}}}
But this is hardcoded to only apply to matrix types:
{{{
sage: MatrixGroup([m,m^2,m^3]).gens()
[[1 4]
[2 2], [4 2]
[1 2], [3 0]
[0 3]]
}}}
This ticket aims to add a `_repr_option(key)` method to **parents** to be
able to return meta-information on the `_repr_()` output. In particular,
`_repr_option('element_ascii_art')` will return a boolean that switches
between the list display hooks.
I've also change the displayhook to switch to the list pretty printing if
*any* entry is an ascii-art element, not just the first one. This upsets a
handful of doctests, but is still quite low impact.
Apply
* [attachment:trac_14040_housekeeping.patch]
* [attachment:trac_14040_repr_option.patch]
* [attachment:trac_14040_doctests.patch]
--
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14040#comment:3>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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