Extract field list from reStructuredText

Question

Say I have the following reST input:

Some text ...

:foo: bar

Some text ...

What I would like to end up with is a dict like this:

Answer 1

I have an alternative solution that I find to be less of a burden, but maybe more brittle. After reviewing the implementation of the node class https://sourceforge.net/p/docutils/code/HEAD/tree/trunk/docutils/docutils/nodes.py you will see that it supports a walk method that can be used to pull out the wanted data without having to create two different xml representations of your data. Here is what I am using now, in my protoype code:

https://github.com/h4ck3rm1k3/gcc-introspector/blob/master/peewee_adaptor.py#L33

from docutils.core import publish_doctree
import docutils.nodes

and then

def walk_docstring(prop):
    doc = prop.__doc__
    doctree = publish_doctree(doc)
    class Walker:
        def __init__(self, doc):
            self.document = doc
            self.fields = {}
        def dispatch_visit(self,x):
            if isinstance(x, docutils.nodes.field):
                field_name = x.children[0].rawsource
                field_value = x.children[1].rawsource
                self.fields[field_name]=field_value
    w = Walker(doctree)
    doctree.walk(w)
    # the collected fields I wanted
    pprint.pprint(w.fields)