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kll/funcparserlib/util.py
Jacob Alexander 1f0bf65417 Initial source dump.
- Not quite complete.
- Most of the parser is done (excluding analog) for 0.3 of the KLL spec
- Transformation and correlation isn't complete yet.
- Backend generation for Kiibohd capabilties is complete.
2014-09-02 10:03:50 -07:00

50 lines
1.9 KiB
Python

# -*- coding: utf-8 -*-
# Copyright (c) 2008/2013 Andrey Vlasovskikh
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
def pretty_tree(x, kids, show):
"""(a, (a -> list(a)), (a -> str)) -> str
Returns a pseudographic tree representation of x similar to the tree command
in Unix.
"""
(MID, END, CONT, LAST, ROOT) = (u'|-- ', u'`-- ', u'| ', u' ', u'')
def rec(x, indent, sym):
line = indent + sym + show(x)
xs = kids(x)
if len(xs) == 0:
return line
else:
if sym == MID:
next_indent = indent + CONT
elif sym == ROOT:
next_indent = indent + ROOT
else:
next_indent = indent + LAST
syms = [MID] * (len(xs) - 1) + [END]
lines = [rec(x, next_indent, sym) for x, sym in zip(xs, syms)]
return u'\n'.join([line] + lines)
return rec(x, u'', ROOT)