view tests/heredoctest.py @ 23553:7cebb6a8c75f

namespaces: introduce a generic way to map between names and nodes

This patch begins the work to provide a way to register a namespace to handle
'names'. Benefits of this would be,

- improved templating: This would provide {name} which could output any branch,
  bookmark, tag, or any extension registered namespace all without having the
  extension doing any extra work

- improved tab completion: Since this provides a single source of all 'names',
  tab completion would not need to know of each namespace

- changeset lookup: Similar to before, a unified place to get all 'names' will
  allow finding changesets without any extension code having to reimplement
  this

Also, d226fe36e362 has shown us that for internal code which expects a certain
type of method or behavior, we should provide an easy way for extensions to
check this behavior.

import sys

globalvars = {}
lines = sys.stdin.readlines()
while lines:
    l = lines.pop(0)
    if l.startswith('SALT'):
        print l[:-1]
    elif l.startswith('>>> '):
        snippet = l[4:]
        while lines and lines[0].startswith('... '):
            l = lines.pop(0)
            snippet += l[4:]
        c = compile(snippet, '<heredoc>', 'single')
        try:
            exec c in globalvars
        except Exception, inst:
            print repr(inst)