def _ascii_art_(self):
r"""
TESTS::
sage: t = OrderedTree([])
sage: ascii_art(t)
o
sage: t = OrderedTree([[]])
sage: aa = ascii_art(t);aa
o
|
o
sage: aa.get_baseline()
2
sage: tt1 = OrderedTree([[],[[],[],[[[[]]]]],[[[],[],[],[]]]])
sage: ascii_art(tt1)
_____o_______
/ / /
o _o__ o
/ / / |
o o o __o___
| / / / /
o o o o o
|
o
|
o
sage: ascii_art(tt1.canonical_labelling())
______1_______
/ / /
2 _3__ 10
/ / / |
4 5 6 ___11____
| / / / /
7 12 13 14 15
|
8
|
9
sage: ascii_art(OrderedTree([[],[[]]]))
o_
/ /
o o
|
o
sage: t = OrderedTree([[[],[[[],[]]],[[]]],[[[[[],[]]]]],[[],[]]])
sage: ascii_art(t)
_____o_______
/ / /
__o____ o o_
/ / / | / /
o o o o o o
| | |
o_ o o
/ / |
o o o_
/ /
o o
sage: ascii_art(t.canonical_labelling())
______1________
/ / /
__2____ 10 16_
/ / / | / /
3 4 8 11 17 18
| | |
5_ 9 12
/ / |
6 7 13_
/ /
14 15
"""
node_to_str = lambda t: str(t.label()) if hasattr(t, "label") else "o"
if self.is_empty():
from sage.misc.ascii_art import empty_ascii_art
return empty_ascii_art
from sage.misc.ascii_art import AsciiArt
if len(self) == 0:
t_repr = AsciiArt( [node_to_str(self)] )
t_repr._root = 1
return t_repr
if len(self) == 1:
repr_child = self[0]._ascii_art_()
sep = AsciiArt( [" "*(repr_child._root-1)] )
t_repr = AsciiArt( [node_to_str(self)] )
t_repr._root = 1
repr_root = (sep + t_repr)*(sep + AsciiArt( ["|"] ))
t_repr = repr_root * repr_child
t_repr._root = repr_child._root
t_repr._baseline = t_repr._h - 1
return t_repr
# General case
l_repr = [subtree._ascii_art_() for subtree in self]
acc = l_repr.pop(0)
whitesep = acc._root+1
lf_sep = " "*(acc._root+1) + "_"*(acc._l-acc._root)
ls_sep = " "*(acc._root) + "/" + " "*(acc._l-acc._root)
while len(l_repr) > 0:
t_repr = l_repr.pop(0)
acc += AsciiArt([" "]) + t_repr
if len(l_repr) == 0: lf_sep += "_"*(t_repr._root+1)
else: lf_sep += "_"*(t_repr._l+1)
ls_sep += " "*(t_repr._root) + "/" + " "*(t_repr._l-t_repr._root)
mid = whitesep + int((len(lf_sep)-whitesep)/2)
node = node_to_str( self )
t_repr = AsciiArt([lf_sep[:mid-1] + node + lf_sep[mid+len(node)-1:], ls_sep]) * acc
t_repr._root = mid
t_repr._baseline = t_repr._h - 1
return t_repr
def _ascii_art_( self ):
r"""
TESTS::
sage: ascii_art(BinaryTree())
<BLANKLINE>
sage: ascii_art(BinaryTree([]))
o
sage: for bt in BinaryTrees(3):
....: print ascii_art(bt)
o
\
o
\
o
o
\
o
/
o
o
/ \
o o
o
/
o
\
o
o
/
o
/
o
sage: ascii_art(BinaryTree([None,[]]))
o
\
o
sage: ascii_art(BinaryTree([None,[None,[]]]))
o
\
o
\
o
sage: ascii_art(BinaryTree([None,[[],None]]))
o
\
o
/
o
sage: ascii_art(BinaryTree([None,[[[],[]],[]]]))
o
\
_o_
/ \
o o
/ \
o o
sage: ascii_art(BinaryTree([None,[[None,[[],[]]],None]]))
o
\
o
/
o
\
o
/ \
o o
sage: ascii_art(BinaryTree([[],None]))
o
/
o
sage: ascii_art(BinaryTree([[[[],None], None],None]))
o
/
o
/
o
/
o
sage: ascii_art(BinaryTree([[[],[]],None]))
o
/
o
/ \
o o
sage: ascii_art(BinaryTree([[[None,[]],[[[],None],None]], None]))
o
/
___o___
/ \
o o
\ /
o o
/
o
sage: ascii_art(BinaryTree([[None,[[],[]]],None]))
o
/
o
\
o
/ \
o o
sage: ascii_art(BinaryTree([[],[]]))
o
/ \
o o
sage: ascii_art(BinaryTree([[],[[],None]]))
_o_
/ \
o o
/
o
sage: ascii_art(BinaryTree([[None,[]],[[[],None],None]]))
___o___
/ \
o o
\ /
o o
/
o
sage: ascii_art(BinaryTree([[[],[]],[[],None]]))
__o__
/ \
o o
/ \ /
o o o
sage: ascii_art(BinaryTree([[[],[]],[[],[]]]))
__o__
/ \
o o
/ \ / \
o o o o
sage: ascii_art(BinaryTree([[[[],[]],[[],[]]],[]]))
___o___
/ \
__o__ o
/ \
o o
/ \ / \
o o o o
sage: ascii_art(BinaryTree([[],[[[[],[]],[[],[]]],[]]]))
_____o______
/ \
o ___o___
/ \
__o__ o
/ \
o o
/ \ / \
o o o o
"""
node_to_str = lambda bt: str(bt.label()) if hasattr(bt, "label") else "o"
if self.is_empty():
from sage.misc.ascii_art import empty_ascii_art
return empty_ascii_art
from sage.misc.ascii_art import AsciiArt
if self[0].is_empty() and self[1].is_empty():
bt_repr = AsciiArt( [node_to_str(self)] )
bt_repr._root = 1
return bt_repr
if self[0].is_empty():
node = node_to_str(self)
rr_tree = self[1]._ascii_art_()
if rr_tree._root > 2:
f_line = " " ** Integer( rr_tree._root - 3 ) + node
s_line = " " ** Integer( len( node ) + rr_tree._root - 3 ) + "\\"
t_repr = AsciiArt( [f_line, s_line] ) * rr_tree
t_repr._root = rr_tree._root - 2
else:
f_line = node
s_line = " " + "\\"
t_line = " " ** Integer( len( node ) + 1 )
t_repr = AsciiArt( [f_line, s_line] ) * ( AsciiArt( [t_line] ) + rr_tree )
t_repr._root = rr_tree._root
t_repr._baseline = t_repr._h - 1
return t_repr
if self[1].is_empty():
node = node_to_str(self)
lr_tree = self[0]._ascii_art_()
f_line = " " ** Integer( lr_tree._root + 1 ) + node
s_line = " " ** Integer( lr_tree._root ) + "/"
t_repr = AsciiArt( [f_line, s_line] ) * lr_tree
t_repr._root = lr_tree._root + 2
t_repr._baseline = t_repr._h - 1
return t_repr
node = node_to_str(self)
lr_tree = self[0]._ascii_art_()
rr_tree = self[1]._ascii_art_()
nb_ = lr_tree._l - lr_tree._root + rr_tree._root - 1
nb_L = int( nb_ / 2 )
nb_R = nb_L + ( 1 if nb_ % 2 == 1 else 0 )
f_line = " " ** Integer( lr_tree._root + 1 ) + "_" ** Integer( nb_L ) + node
f_line += "_" ** Integer( nb_R )
s_line = " " ** Integer( lr_tree._root ) + "/" + " " ** Integer( len( node ) + rr_tree._root - 1 + ( lr_tree._l - lr_tree._root ) ) + "\\"
t_repr = AsciiArt( [f_line, s_line] ) * ( lr_tree + AsciiArt( [" " ** Integer( len( node ) + 2 )] ) + rr_tree )
t_repr._root = lr_tree._root + nb_L + 2
t_repr._baseline = t_repr._h - 1
return t_repr
def _ascii_art_(self):
r"""
TESTS::
sage: t = OrderedTree([])
sage: ascii_art(t)
o
sage: t = OrderedTree([[]])
sage: aa = ascii_art(t);aa
o
|
o
sage: aa.get_baseline()
2
sage: tt1 = OrderedTree([[],[[],[],[[[[]]]]],[[[],[],[],[]]]])
sage: ascii_art(tt1)
_____o_______
/ / /
o _o__ o
/ / / |
o o o __o___
| / / / /
o o o o o
|
o
|
o
sage: ascii_art(tt1.canonical_labelling())
______1_______
/ / /
2 _3__ 10
/ / / |
4 5 6 ___11____
| / / / /
7 12 13 14 15
|
8
|
9
sage: ascii_art(OrderedTree([[],[[]]]))
o_
/ /
o o
|
o
sage: t = OrderedTree([[[],[[[],[]]],[[]]],[[[[[],[]]]]],[[],[]]])
sage: ascii_art(t)
_____o_______
/ / /
__o____ o o_
/ / / | / /
o o o o o o
| | |
o_ o o
/ / |
o o o_
/ /
o o
sage: ascii_art(t.canonical_labelling())
______1________
/ / /
__2____ 10 16_
/ / / | / /
3 4 8 11 17 18
| | |
5_ 9 12
/ / |
6 7 13_
/ /
14 15
"""
node_to_str = lambda t: str(t.label()) if hasattr(t, "label") else "o"
if self.is_empty():
from sage.misc.ascii_art import empty_ascii_art
return empty_ascii_art
from sage.misc.ascii_art import AsciiArt
if len(self) == 0:
t_repr = AsciiArt([node_to_str(self)])
t_repr._root = 1
return t_repr
if len(self) == 1:
repr_child = self[0]._ascii_art_()
sep = AsciiArt([" " * (repr_child._root - 1)])
t_repr = AsciiArt([node_to_str(self)])
t_repr._root = 1
repr_root = (sep + t_repr) * (sep + AsciiArt(["|"]))
t_repr = repr_root * repr_child
t_repr._root = repr_child._root
t_repr._baseline = t_repr._h - 1
return t_repr
# General case
l_repr = [subtree._ascii_art_() for subtree in self]
acc = l_repr.pop(0)
whitesep = acc._root + 1
lf_sep = " " * (acc._root + 1) + "_" * (acc._l - acc._root)
ls_sep = " " * (acc._root) + "/" + " " * (acc._l - acc._root)
while len(l_repr) > 0:
t_repr = l_repr.pop(0)
acc += AsciiArt([" "]) + t_repr
if len(l_repr) == 0: lf_sep += "_" * (t_repr._root + 1)
else: lf_sep += "_" * (t_repr._l + 1)
ls_sep += " " * (t_repr._root) + "/" + " " * (t_repr._l -
t_repr._root)
mid = whitesep + int((len(lf_sep) - whitesep) / 2)
node = node_to_str(self)
t_repr = AsciiArt([
lf_sep[:mid - 1] + node + lf_sep[mid + len(node) - 1:], ls_sep
]) * acc
t_repr._root = mid
t_repr._baseline = t_repr._h - 1
return t_repr
