Re: [NTG-context] buffer broken?

11 Jan 2012

      On Wed, Jan 11, 2012 at 12:52 PM, Meer, H. van der wrote:
...
On 11 jan. 2012, at 11:33, luigi scarso wrote:
On Wed, Jan 11, 2012 at 11:11 AM, Hans van der Meer wrote:
...
Something must have been changed with buffers between the versions:
 ConTeXt  ver: 2011.11.29 18:47 MKIV  fmt: 2011.12.31
 and
 ConTeXt  ver: 2012.01.09 10:08 MKIV  fmt: 2012.1.11
Formerly this was ok:
 \startbuffer[abc]
 whatever
 \stopbuffer
Now I get: ! Missing } inserted.
Because running this in isolation goes without a problem, I suspect the
change has to do with the project structure in which I use the buffer. But
again, it worked in the past.
Does it works with
 \setbuffer[abc]
 whatever
 \endbuffer
 ?
It works with these macros, yes. Thanks.
But is \setbuffer..\endbuffer something new? I do not see it on the
Reference page of the wiki. Also it doesn't seem in line with ConTeXt's
regular naming scheme of \startsomething..\stopsomething.
Can you give somewhat more information, for examle what is the difference
between \setbuffer and \startbuffer?
Hans van der Meer
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Well, start/stopbuffer should work... and Hans said that it will be fixed
in the next beta.

The problems seems to be a missing \endgroup

\setuvalue{\e!start\v!buffer}%
  {\bgroup
   \obeylines
   \dosingleempty\buff_start}

\def\buff_start[#1]%
  {\buff_start_indeed{}{#1}{\e!start\v!buffer}{\e!stop\v!buffer}}

\def\buff_start_indeed#1#2#3#4% \donothing needed !
  {\normalexpanded{\buff_pickup{#2}{#3}{#4}{}{\buff_stop{#4}}}}

Perhaps it should be
\def\buff_start[#1]%
  {\buff_start_indeed{}{#1}{\e!start\v!buffer}{\e!stop\v!buffer}\egroup}

-- 
luigi