Source code for sympy.printing.tree

from __future__ import print_function, division


[docs]def pprint_nodes(subtrees): """ Prettyprints systems of nodes. Examples ======== >>> from sympy.printing.tree import pprint_nodes >>> print(pprint_nodes(["a", "b1\\nb2", "c"])) +-a +-b1 | b2 +-c """ def indent(s, type=1): x = s.split("\n") r = "+-%s\n" % x[0] for a in x[1:]: if a == "": continue if type == 1: r += "| %s\n" % a else: r += " %s\n" % a return r if len(subtrees) == 0: return "" f = "" for a in subtrees[:-1]: f += indent(a) f += indent(subtrees[-1], 2)
return f return s
[docs]def tree(node): """ 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() """ subtrees = [] for arg in node.args: subtrees.append(tree(arg)) s = print_node(node) + pprint_nodes(subtrees)
return s print(tree(node))