On 2-10-2012 02:30, Andre Caldas wrote:
I am trying to redefine the ’open_read_file’ callback.
[...]
direct callback access is disabled. There are usually some layers
of abstraction on top of them, different ones for different
callbacks. Mapping them all is a huge effort, so best refer to
the source.
In your case the function resolvers.openers.helpers.textopener()
takes the place of the open_read_file callback. It can be found
in data-tex.lua.
Shall I simply do something like this?
local function textopener(tag, filename, filehandle, coding)
result = old_textopener(tag, filename, filehandle, coding)
-- Do lots of things
return result
end
resolvers.openers.helpers.textopener = textopener
this is not the recommended way .. better do somethign like this:
\starttext
\startluacode
function document.MyCharacterMess(str,filename)
if file.nameonly(filename) == "ward" then
str = table.concat(string.totable(str,"."), " + ")
end
return str
end
local textfileactions = resolvers.openers.helpers.textfileactions
utilities.sequencers.appendaction(textfileactions,"system","document.MyCharacterMess")
\stopluacode
\input ward
\input knuth
\stoptext
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