Permit transformation of common symbols to their names.

[amcgregor]

Certain common symbols may occur and be desirable to process within an object dispatch endpoint hierarchy. For example, to handle application delivery of certain static assets such as a favicon.ico or programmatic generation of a sitemap.xml. Currently, "filename extensions" aren't matchable to attributes.

Example transformations:

• . → _dot_
• - → _hyphen_
• ~ → _tilde_
• : → _colon_

It may be sensible to… abbreviate some of these. With the downside that it becomes impossible to differentiate between an actual _ and a hyphen, and ambiguity between . and -.

• . → _
• - → _
• : → __

Where replacements occurring at the end will have trailing underscores elided, and if any replacements are made, the attribute name evaluated will always begin with a single underscore, to prevent access from multiple URI. (E.g. requesting /favicon.ico serving the same content as /favicon_dot_ico.)

Thus, under WebCore, to "statically" serve a favicon.ico:

class Root:
	_favicon_dot_ico = open('favicon.ico', 'rb')

To handle a "home folder" reference:

class Root:
	_tilde_amcgregor = "Hi there."

To handle class-based sub-resources:

class Root:
	def _action_colon_create(self): ...
	def _view_colon_thumbnails(self): ...

Or, with abbreviation:

class Root:
	def _action__create(self): ...
	def _view__thumbnails(self): ...