Sketch the header for level 1

[Iulian Stana]

2013/8/5 Idan Kamara <idankk86 at gmail.com>

> On Mon, Aug 5, 2013 at 11:29 AM, Giovanni Gherdovich <
> g.gherdovich at gmail.com> wrote:
>
>> Hello Idan,
>>
>> Idan wrote:
>> :::: On Fri, Aug 2, 2013 at 3:59 PM, Giovanni Gherdovich
>> :::: <g.gherdovich at gmail.com>wrote:
>> ::::
>> :::: > Hello Idan,
>> :::: > [...]
>> :::: > You also say "the return value is unparsed."
>>
>> :::: > Well, it cannot be otherwise; the only "structured" piece of data
>> is
>> :::: > the content of the 'r' channel (read by hg_exitcode).
>> :::: >
>> :::: > The rest of the output, namely 'o' and 'e' channels, is just flat
>> text.
>> :::: > It cannot be parsed since the content and format can change from
>> :::: > a hg release to the next. So the only way to deal with it is to
>> take it as
>> :::: > it is.
>> :::: >
>> ::::
>> :::: That's not true and if it were these libraries we're trying to
>> create around
>> :::: hg wouldn't be all that useful.
>> ::::
>> :::: You can see here[1] that python-hglib test suite runs on hg versions
>> going
>> :::: back to 1.9.3 and have survived several big releases with only a few
>> changes
>> :::: in Mercurial's output during that time, which in some cases would
>> have gone
>> :::: unnoticed had python-hglib been more liberal in parsing the output.
>>
>> Actually now that you point this out, I can see that "import re" in
>> http://selenic.com/repo/python-hglib/file/c13b99b01008/hglib/client.py
>> and quite a lot of result for CTRL+F 're.' in that code.
>>
>> Ok, Iulian will implement some output parsing in level 1 functions.
>> Err... How do people do regex matching in C?
>>
>
> Most commands have a very simple output format, others support templating.
> I doubt
> there's a real need for regular expressions.
>

Hmm, we can use some templates, or a specific pattern to parse data.
For the moment I have 2 ideas how to return the parse data:
  -  using some data structure but, will charged too much the code.
  -  using some **char data that will match a specific pattern (like a
table or a list of string)

>From my knowledge Flex C (http://flex.sourceforge.net/) it's a regular
expression
parser. Probably it's to much for this project. Please correct me.

-- 
Iulian
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://selenic.com/pipermail/mercurial-devel/attachments/20130805/ae148180/attachment.html>