trace.py File Reference

Demonstrates how to display a trace of the parser's path through the parse tree. More...

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Namespaces
	examples.basics.trace

Variables
string	examples.basics.trace.title
string	examples.basics.trace.float
string	examples.basics.trace.bad_float
	examples.basics.trace.api = Api()
	examples.basics.trace.grammar = api.generate(float)
	examples.basics.trace.parser = Parser(grammar)
	examples.basics.trace.trace = Trace(parser, mode='dc')
string	examples.basics.trace.input_string = '-123,456789E-10'
	examples.basics.trace.result = parser.parse(utils.string_to_tuple(input_string))
	examples.basics.trace.end

Detailed Description

Demonstrates how to display a trace of the parser's path through the parse tree.

Tracing my generate a lot of output. It may be advantagous to pipe stdout to an alternate location for more casual perusal. For example, if using linux:

python3 examples/basics/trace.py | less

or

python3 examples/basics/trace.py > /tmp/trace
vi /tmp/trace

Definition in file trace.py.