Re: Getting the content of source lines in a \startlines \stoplines env?

[Wolfgang Schuster <wolfgang.schuster@gmail.com>]

Am 04.02.2013 um 18:11 schrieb Ingo Hohmann <context@ingohohmann.de>:

> Hi,
> 
> in another thread I got an answer to the question, how to format lines in an environment automatically.
> Is there a way to get the content of source lines? For example, to save the line content into a variable?


You can save the content in a buffer and process the content with Lua.

\startluacode

userdata              = userdata              or { }
userdata.linescontent = userdata.linescontent or { }

local linescontent = userdata.linescontent

function linescontent.process()
	local lines = string.splitlines(buffers.getcontent("linescontent"))
	context.startlines()
	for i=1,#lines do
		local l = lines[i]
		if i == 1 then
			context("{\\bf %s}",l)
			context(true)
		elseif i == 2 then
			context("{\\tt %s}",l)
			context(true)
		else
			context("%s",l)
			context(true)
		end
	end
	context.stoplines()
end

\stopluacode

\def\startlinescontent
  {\grabbufferdata[linescontent][startlinescontent][stoplinescontent]}

\def\stoplinescontent
  {\ctxlua{userdata.linescontent.process()}}

\starttext

\startlinescontent
One
Two
Three
Four
Five
Six
\stoplinescontent

\stoptext

Wolfgang
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