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On 08/09/2018 10:25 PM, Hans Hagen wrote:
In addition to what others already explained, you should not depend on features that are implementation dependent or might disappear.
Many thanks for your detailed explanation, Hans. I had no idea that the automatic conversion from string to number where so dependent on the Lua version.
That said ...
\startTEXpage[offset=1em] \ctxlua{context([[\lastpage]])}. \stopTEXpage
Why do you convert \lastpage to a string using [[\lastpage]] which will use the string to number conversion?
Well, I must confess that this is a new knowledge to me. I thought that "[[ ]]" was the form to escape what I think it is the escape character in Lua. How I came to that assumption? Probably because I tried to add a raw command to \ctxlua or inside a \startlua...\stoplua.
You can just do:
\startTEXpage[offset=1em] \ctxlua{context(\lastpage + 1)}. \stopTEXpage
From this sample, I understand that "\" doesn’t need to be escaped inside context(), does it?
or if you really want to [[ ]]
\startTEXpage[offset=1em] \the\numexpr\ctxlua{context([[lastpage]] + 1)}\relax . \stopTEXpage
endless possibities here.
I don’t need "[[ ]]", I only thought I needed them. Many thanks for your help, Pablo -- http://www.ousia.tk