On 6/14/24 14:39, Qian Yun wrote:
\xtc: show command, execute command, show result
\psXtc: show command, execute command, don't show result
\noOutputXtc: show command, execute command, don't show result
\nullXtc: show command, don't execute command
Very well described.
I propose to add new type, \shadowXtc:
\shadowXtc: don't show command, execute command, don't show result
This way, I can integrate the additional commands from ug-pics.input
into htex sources.
I do not think that this solves the problem that led to the existence of
ug-pics.input. As far as I understood the problem is that you issue
"close(%)" after creating the .ps file.
Your proposal might remove the need of skip-graphics.awk.
I think we can do better.
\psXtc shows the commands and also writes out the respective command for
execution, but it does that like this
==========
-- \\begin{xtcnooutput}
)if CreateGraphics
spadgraphViewport:=COMMAND
)endif
\\end{xtcnooutput}
==========
Execution is prevented by the fact that CreateGraphics is an unknown
symbol for the )if.
In the run that we create the graphics files, we simply pipe the same
file through fricas, but then with ")assert CreateGraphics" prepended.
I'm currently working on that idea and hope to present a working version
soon.
The basic idea is:
(a) Every \psXtc creates a .ps file.
(b) Every \spadgraph creates a new viewport that is stored in
the special fricas variable "spadGraphViewport" and is closed
right before opening a new one.
\spadgraph only appears inside \psXtc or \nullXtc. We need not care
about \nullXtc.
Ralf
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