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%D \module
%D [ file=m-ipsum,
%D version=2012.07.19,
%D title=\CONTEXT\ Extra Modules,
%D subtitle=Ipsum,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
%D After some discussing on the mailing list I made this example of
%D an implementation. Of course there can be alternatives as it's a
%D nice exercise in module writing.
\startluacode
local patterns = lpeg.patterns
local variables = interfaces.variables
local v_random = variables.random
local lowercase = characters.lower
local ipsum = { }
moduledata.ipsum = ipsum
local data = { }
local function getfiledata(settings)
local filename = settings.filename or ""
local filedata = data[filename]
if not filedata then
local text = resolvers.loadtexfile(filename) or ""
local paragraphs = lpeg.match(patterns.paragraphs,text) or { }
local sentences = lpeg.match(patterns.sentences, text) or { }
local words = lpeg.match(patterns.words, text) or { }
for i=1,#words do
words[i] = lowercase(words[i])
end
filedata = {
-- [variables.paragraphs] = paragraphs,
[variables.paragraph] = paragraphs,
[variables.lines] = sentences,
[variables.line] = sentences,
[variables.words] = words,
[variables.word] = words,
}
-- inspect(filedata)
data[filename] = filedata
end
local d = filedata[settings.alternative or v_paragraph] or filedata[v_paragraph] or { }
local nd = #d
local n = settings.n
if n ~= v_random then
n = tonumber(n) or 0
if n == 0 then
n = nd
end
end
return d, n, nd
end
function moduledata.ipsum.typeset(settings)
local d, n, nd = getfiledata(settings)
if nd > 0 then
context(settings.before)
if n == v_random then
context(settings.left)
context(d[math.random(1,nd)])
context(settings.right)
else
for i=1,n do
context(settings.left)
context(d[i])
context(settings.right)
if i < n then
context(settings.inbetween)
end
end
end
context(settings.after)
end
end
function moduledata.ipsum.direct(settings)
local d, n, nd = getfiledata(settings)
if nd == 0 then
-- nothing
elseif n == v_random then
context(d[math.random(1,nd)])
else
for i=1,n do
context(d[i])
if i < n then
context(settings.separator)
end
end
end
end
\stopluacode
\unprotect
\installnamespace {ipsum}
\installcommandhandler \????ipsum {ipsum} \????ipsum
\setupipsum
[\c!file=lorem,
\c!alternative=\v!paragraph,
%\c!language=,
%\c!styl=,
%\c!color=,
\c!n=0,
\c!left=,
\c!right=,
\c!before=,
\c!after=,
\c!separator=,
\c!inbetween=]
\installactionhandler{ipsum} % grouped
\startsetups[handler:action:ipsum]
\useipsumstyleandcolor\c!style\c!color
\uselanguageparameter\ipsumparameter
\ctxlua{moduledata.ipsum.typeset {
alternative = "\ipsumparameter\c!alternative",
filename = "\ipsumparameter\c!file",
n = "\ipsumparameter\c!n",
left = "\luaescapestring{\ipsumparameter\c!left}",
right = "\luaescapestring{\ipsumparameter\c!right}",
before = "\luaescapestring{\ipsumparameter\c!before}",
after = "\luaescapestring{\ipsumparameter\c!after}",
inbetween = "\luaescapestring{\ipsumparameter\c!inbetween}",
}}
\stopsetups
\def\directipsum#1% only one argument, expanded
{\ctxlua{moduledata.ipsum.typeset {
alternative = "\namedipsumparameter{#1}\c!alternative",
filename = "\namedipsumparameter{#1}\c!file",
n = "\namedipsumparameter{#1}\c!n",
separator = "\luaescapestring{\ipsumparameter\c!separator}",
}}
}
\protect
\continueifinputfile{m-ipsum.mkiv}
\setupbodyfont[dejavu,11pt]
\starttext
\ipsum[alternative=paragraph,before=\blank,after=\blank,language=la]
\ipsum[alternative=lines,n=2,right=\par,before=\blank,after=\blank,language=la]
\ipsum[alternative=lines,n=random,before=\blank,after=\blank,language=la]
\ipsum[alternative=lines,before=\startitemize,after=\stopitemize,left=\startitem,right=\stopitem,language=la]
\ipsum[alternative=words,left=(,right=),inbetween=\space,language=la]
\page
\defineipsum
[ward]
[file=ward,
before=\blank,
after=\blank]
\defineipsum
[ward:itemize]
[ward]
[alternative=lines,
before={\startitemize[packed]},
after=\stopitemize,
left=\startitem,
right=\stopitem]
\defineipsum
[ward:title]
[ward]
[alternative=lines,
n=random]
\subject{\directipsum{ward:title}}
\ipsum[ward]
\ipsum[ward:itemize]
\stoptext
|
