hayato-m126 / launch_arg_sample

ros launch, demo

launch arg sample

This is demo package to describe launch argument bug how to set a launch argument that includes character colon.

problem

If a string argement includes colon : , launch process will die.

demo command

# launch process will die
ros2 launch launch_arg_sample sample.launch.py compare_str:="Hello World:"

# working
ros2 launch launch_arg_sample sample.launch.py compare_str:="Hello World"

Solution

Enclose string in single quotes.

# working
ros2 launch launch_arg_sample sample.launch.py compare_str:="'Hello World:'"

Why

ros2/launch#508