names.py
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#!/usr/bin/env python3
"""
Library for manipulating ROS Names. See U{http://ros.org/wiki/Names}.
"""
# Software License Agreement (BSD License)
#
# Copyright (c) 2008, Willow Garage, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of Willow Garage, Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# Revision $Id: names.py 14589 2011-08-07 18:30:21Z kwc $
import os
import sys
SEP = '/'
GLOBALNS = '/'
PRIV_NAME = '~'
REMAP = ":="
ANYTYPE = '*'
def load_mappings(argv):
"""
Load name mappings encoded in command-line arguments. This will filter
out any parameter assignment mappings.
@param argv: command-line arguments
@type argv: [str]
@return: name->name remappings.
@rtype: dict {str: str}
"""
mappings = {}
for arg in argv:
if REMAP in arg:
try:
src, dst = [x.strip() for x in arg.split(REMAP)]
if src and dst:
if len(src) > 1 and src[0] == '_' and src[1] != '_':
# ignore parameter assignment mappings
pass
else:
mappings[src] = dst
except BaseException:
#TODO: remove
sys.stderr.write(
"ERROR: Invalid remapping argument '%s'\n" %
arg)
return mappings