Mercurial > hg
view mercurial/node.py @ 29837:5b886289a1ca
formatter: add fm.nested(field) to either write or build sub items
We sometimes need to build nested items by formatter, but there was no
convenient way other than building and putting them manually by fm.data():
exts = []
for n, v in extensions:
fm.plain('%s %s\n' % (n, v))
exts.append({'name': n, 'ver': v})
fm.data(extensions=exts)
This should work for simple cases, but doing this would make it harder to
change the underlying data type for better templating support.
So this patch provides fm.nested(field), which returns new nested formatter
(or self if items aren't structured and just written to ui.) A nested formatter
stores items which will later be rendered by the parent formatter.
fn = fm.nested('extensions')
for n, v in extensions:
fn.startitem()
fn.write('name ver', '%s %s\n', n, v)
fn.end()
Nested items are directly exported to a template for now:
{extensions % "{name} {ver}\n"}
There's no {extensions} nor {join(extensions, sep)} yet. I have a plan for
them by extending fm.nested() API, but I want to revisit it after trying
out this API in the real world.
author | Yuya Nishihara <yuya@tcha.org> |
---|---|
date | Sun, 13 Mar 2016 19:59:39 +0900 |
parents | a3f3fdac8433 |
children | 0298a07f64d9 |
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# node.py - basic nodeid manipulation for mercurial # # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from __future__ import absolute_import import binascii # This ugly style has a noticeable effect in manifest parsing hex = binascii.hexlify bin = binascii.unhexlify nullrev = -1 nullid = b"\0" * 20 nullhex = hex(nullid) # pseudo identifiers for working directory # (they are experimental, so don't add too many dependencies on them) wdirrev = 0x7fffffff wdirid = b"\xff" * 20 def short(node): return hex(node[:6])