Mercurial > hg
view tests/test-wireproto.py @ 25783:1f6878c87c25
templater: introduce one-pass parsing of nested template strings
Instead of re-parsing quoted strings as templates, the tokenizer can delegate
the parsing of nested template strings to the parser. It has two benefits:
1. syntax errors can be reported with absolute positions
2. nested template can use quotes just like shell: "{"{rev}"}"
It doesn't sound nice that the tokenizer recurses into the parser. We could
instead make the tokenize itself recursive, but it would be much more
complicated because we would have to adjust binding strengths carefully and
put dummy infix operators to concatenate template fragments.
Now "string" token without r"" never appears. It will be removed by the next
patch.
author | Yuya Nishihara <yuya@tcha.org> |
---|---|
date | Mon, 15 Jun 2015 23:11:35 +0900 |
parents | d3d32643c060 |
children | cbbdd085c991 |
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from mercurial import wireproto class proto(object): def __init__(self, args): self.args = args def getargs(self, spec): args = self.args args.setdefault('*', {}) names = spec.split() return [args[n] for n in names] class clientpeer(wireproto.wirepeer): def __init__(self, serverrepo): self.serverrepo = serverrepo def _call(self, cmd, **args): return wireproto.dispatch(self.serverrepo, proto(args), cmd) @wireproto.batchable def greet(self, name): f = wireproto.future() yield {'name': mangle(name)}, f yield unmangle(f.value) class serverrepo(object): def greet(self, name): return "Hello, " + name def filtered(self, name): return self def mangle(s): return ''.join(chr(ord(c) + 1) for c in s) def unmangle(s): return ''.join(chr(ord(c) - 1) for c in s) def greet(repo, proto, name): return mangle(repo.greet(unmangle(name))) wireproto.commands['greet'] = (greet, 'name',) srv = serverrepo() clt = clientpeer(srv) print clt.greet("Foobar") b = clt.batch() fs = [b.greet(s) for s in ["Fo, =;:<o", "Bar"]] b.submit() print [f.value for f in fs]