Hello ConTeXist.

Is there any possibility or modifications that will allow to savebuffer to work, so that will add (merge) the buffer contents into a file (Which content of the previous buffer)?

For inspiration, it is possible use a solution that wrote before year ago Wolfgang for Lukas Prochazka – ie https://mailman.ntg.nl/pipermail/ntg-context/2016/087657.html


Thanx
Jaroslav Hajtmar


Here is source code of Wolfgangs solution:


\unexpanded\def\startcontentexport
   {\dosingleempty\dostartcontentexport}

\def\dostartcontentexport[#1]%
   {\iffirstargument
      \edef\contentexportfile{#1}%
    \else
      \let\contentexportfile\empty
    \fi
    \grabbufferdata[contentexport][startcontentexport][stopcontentexport]}

\def\stopcontentexport

{\doifsomething{\contentexportfile}{\savebuffer[list=contentexport,prefix=no,file=\contentexportfile]}%
    \getbufferdata[contentexport]}

\starttext

A

\startcontentexport[Test.mkiv]
   Basic content …
   \startitemize
     \item Item
   \stopitemize
\stopcontentexport

B

\startcontentexport[Test.mkiv]
   Add this text into Test.mkiv file
   \startitemize
     \item Item
   \stopitemize
\stopcontentexport

C

\startcontentexport[Test.mkiv]
  And this text add into Test.mkiv file too.
   \startitemize
     \item Item
   \stopitemize
\stopcontentexport

\stoptext