Re: [COMMITTERS] pgsql: Mark JSON error detail messages for translation.

Excerpts from Tom Lane's message of mar jun 12 16:52:20 -0400 2012:
> Robert Haas <robertmhaas@gmail.com> writes:

> >> I notice that there's an unfinished attempt to maintain a line_start
> >> pointer; if that were carried through, we could imagine printing the
> >> current line up to the point of an error, which might provide a
> >> reasonable balance between verbosity and insufficient context.
> >> ...
> >> or perhaps better let it run to the end of the line:
> 
> > I'm not sure I find that an improvement, but I'm open to what other
> > people think.
> 
> Anybody here besides the crickets?

I think providing both partial line contents (so +1 for maintaining
line_start carefully as required) and line number would be useful enough
to track down problems.

I am not sure about the idea of letting the detail run to the end of the
line; that would be problematic should the line be long (there might not
be newlines in the literal at all, which is not that unusual).  I think
it should be truncated at, say, 76 chars or so.

For the case where you have a single } in a line, this isn't all that
helpful; we could consider printing the previous line as well.  But if
you end up with

       }
    }

then it's not that helpful either.  I am not sure.

-- 
Álvaro Herrera <alvherre@commandprompt.com>
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