On Wed, 15 Aug 2018, Rik Kabel wrote:
On 8/15/2018 03:07, Hans Hagen wrote:
On 8/15/2018 5:31 AM, Aditya Mahajan wrote:
On Tue, 14 Aug 2018, Rik Kabel wrote:
I really think, though, that a buffers.strip function would be the way to
go, instead of futzing after the damage is done.
In lua, buffers.getcontent('name') gives the contents of the buffer
labelled 'name'. You can post-process this in whatever way you want. For
example, you could write a lua function userdata.strip that strips the
leading and ending black spaces from a string, and then call
context(userdata.strip(buffers.getcontent('name)))
local s = [[
foo
bar
bar
]]
print(string.fullstrip(s))
So, it looks likethe following is closer to working for me in a simple test
harness, but not in my full-blown work:
\dontleavehmode{\llap{StripA~}}\ctxlua{context(utilities.strings.striplines(string.gsub(buffers.getcontent("TestBuffer"),"^\\relax",""),"prune"))}
(or similar with string.fullstrip).
However, it fails when the buffer starts with an unescaped left square
bracket. That is probably why the \relax is inserted, and I can see that it
is not a simple job to handle this. So, I will accept that I must either
append [] or get rid of the open layout for these cases.
I suspect that the issue in the larger project has to do with quoting for the
RE ("^\\relax") since compilation fails with:
%% \stopAttribution ...getcontent("Attribution"),"^\\
%% relax","")))}\stopparagrap...
Any pointers on such quoting would be appreciated.
Please create a MWE.
Aditya
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