B ™‘[’ ã@s4ddlmZmZdd„Zdd„Zdd„Zdd „Zd S) é)Úprint_functionÚdivisioncCsVd dd„}t|ƒdkrdSd}x |dd…D]}|||ƒ7}q,W|||ddƒ7}|S) zÎ Prettyprints systems of nodes. Examples ======== >>> from sympy.printing.tree import pprint_nodes >>> print(pprint_nodes(["a", "b1\nb2", "c"])) +-a +-b1 | b2 +-c écSs\| d¡}d|d}x@|dd…D]0}|dkr2q$|dkrH|d|7}q$|d|7}q$W|S)NÚ z+-%s rrÚz| %s z %s )Úsplit)ÚsÚtypeÚxÚrÚa©r ú2lib/python3.7/site-packages/sympy/printing/tree.pyÚindents  zpprint_nodes..indentrrNéÿÿÿÿé)r)Úlen)ÚsubtreesrÚfr r r rÚ pprint_nodess rcCs^d|jjt|ƒf}|j}t|ƒdkrZx2t|ƒD]&}||}|dkrFq0|d||f7}q0W|S)zu Returns information about the "node". This includes class name, string representation and assumptions. z%s: %s rN)Ú __class__Ú__name__ÚstrZ _assumptionsrÚsorted)ÚnoderÚdr Úvr r rÚ print_node's rcCs6g}x|jD]}| t|ƒ¡q Wt|ƒt|ƒ}|S)z« Returns a tree representation of "node" as a string. It uses print_node() together with pprint_nodes() on node.args recursively. See also: print_tree() )ÚargsÚappendÚtreerr)rrÚargrr r rr 8s  r cCstt|ƒƒdS)a’ Prints a tree representation of "node". Examples ======== >>> from sympy.printing import print_tree >>> from sympy import Symbol >>> x = Symbol('x', odd=True) >>> y = Symbol('y', even=True) >>> print_tree(y**x) Pow: y**x +-Symbol: y | algebraic: True | commutative: True | complex: True | even: True | hermitian: True | imaginary: False | integer: True | irrational: False | noninteger: False | odd: False | rational: True | real: True | transcendental: False +-Symbol: x algebraic: True commutative: True complex: True even: False hermitian: True imaginary: False integer: True irrational: False noninteger: False nonzero: True odd: True rational: True real: True transcendental: False zero: False See also: tree() N)Úprintr )rr r rÚ print_treeGs.r#N)Z __future__rrrrr r#r r r rÚs#