Libgap tab completion

[vbraun]

This ticket fixes tab completion on the libgap object

sage: libgap.[TAB]
sage: n = libgap(123)
sage: n.[TAB]

CC: @dimpase

Component: group theory

Author: Volker Braun

Branch/Commit: 47bc138

Reviewer: Dima Pasechnik

Issue created by migration from https://trac.sagemath.org/ticket/19917

[vbraun]

Branch: u/vbraun/libgap_tab_completion

[vbraun]

Commit: ccc742e

[vbraun]

Author: Volker Braun

[vbraun]

Description changed:

--- 
+++ 
@@ -1 +1,5 @@
+This ticket fixes tab completion on the libgap object
 
+```
+sage: libgap.[TAB]
+```

[vbraun]

New commits:

ccc742e

Fix libgap tab completion

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

807d1a5

Improve tab completion on LibGAP elements

[sagetrac-git]

Changed commit from ccc742e to 807d1a5

[vbraun]

Description changed:

--- 
+++ 
@@ -2,4 +2,6 @@
 
 ```
 sage: libgap.[TAB]
+sage: n = libgap(123)
+sage: n.[TAB]
 ```

[dimpase]

comment:5

Still, the tab completion on objects obtained from libgap does not work; not sure if it was intended to be fixed by this ticket:

sage: g=libgap.GeneralLinearGroup(3,2)
sage: g.
g.N                     g.cartesian_product     g.is_bool               g.is_permutation        g.matrix                g.parent                g.save                  g.version
g.abs                   g.category              g.is_function           g.is_prime              g.multiplicative_order  g.powers                g.subs                  
g.additive_order        g.db                    g.is_list               g.is_record             g.n                     g.rename                g.substitute            
g.base_extend           g.dump                  g.is_nilpotent          g.is_string             g.numerical_approx      g.reset_name            g.trait_names           
g.base_ring             g.dumps                 g.is_one                g.is_zero               g.order                 g.sage                  g.vector                
sage: g.Order()  # this choice not offered, but works...
168

[vbraun]

comment:6

Did you rebuild the Sage library? I get:

sage: g =libgap.GeneralLinearGroup(3,2)
sage: g.
Display all 727 possibilities? (y or n)
g.ANonReesCongruenceOfSemigroup                   g.IsReesMatrixSemigroup
g.AbelianGroupCons                                g.IsReesZeroMatrixSemigroup
g.AbelianInvariants                               g.IsRegular
g.AbelianInvariantsMultiplier                     g.IsRegularSemigroup
...