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Re: [Qemu-devel] [PATCH 2/5] scripts: qmp-shell: add support for [] expr
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [PATCH 2/5] scripts: qmp-shell: add support for [] expressions |
Date: |
Wed, 22 Apr 2015 08:28:48 -0600 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 |
On 04/21/2015 08:02 PM, John Snow wrote:
> qmp-shell currently allows you to describe values as
> JSON expressions:
>
> key={"key":{"key2":"val"}}
>
> But it does not currently support arrays, which are needed
> for serializing and deserializing transactions:
>
> key=[{"type":"drive-backup","data":{...}}]
>
> Add support for arrays.
>
> CAVEAT: The parser is still extremely rudimentary and does not
> expect to find spaces in {} nor [] expressions. This patch does
> not improve this functionality.
>
> Signed-off-by: John Snow <address@hidden>
> ---
> scripts/qmp/qmp-shell | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/scripts/qmp/qmp-shell b/scripts/qmp/qmp-shell
> index a9632ec..5347f89 100755
> --- a/scripts/qmp/qmp-shell
> +++ b/scripts/qmp/qmp-shell
> @@ -102,6 +102,8 @@ class QMPShell(qmp.QEMUMonitorProtocol):
> value = False
> elif opt[1].startswith('{'):
> value = json.loads(opt[1])
> + elif opt[1].startswith('['):
> + value = json.loads(opt[1])
Why not:
elif opt[1].startswith('{'} or opt[1].startswith('['):
for a one-line change instead of two-line addition? And I'm no python
expert, but I think you can write that with fewer characters. Untested,
but does this work?
elif opt[1][0] in "{[":
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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