view .clang-format @ 36862:ec0af9c59270

hgweb: use a multidict for holding query string parameters

My intention with refactoring the WSGI code was to make it easier
to read. I initially wanted to vendor and use WebOb, because it seems
to be a pretty reasonable abstraction layer for WSGI. However, it isn't
using relative imports and I didn't want to deal with the hassle of
patching it. But that doesn't mean we can't use good ideas from WebOb.

WebOb has a "multidict" data structure for holding parsed query string
and POST form data. It quacks like a dict but allows you to store
multiple values for each key. It offers mechanisms to return just one
value, all values, or return 1 value asserting that only 1 value is
set. I quite like its API.

This commit implements a read-only "multidict" in the spirit of
WebOb's multidict.

We replace the query string attributes of our parsed request with
an instance of it.

Differential Revision: https://phab.mercurial-scm.org/D2776

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