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if not modules then modules = { } end modules ['lang-hup'] = {
version = 1.001,
comment = "companion to lang-hup.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local utfchar = utf.char
local concat, sortedhash = table.concat, table.sortedhash
local specialskips = nodes.specialskipcodes
local nodecodes = nodes.nodecodes
local disc_code = nodecodes.disc
local glyph_code = nodecodes.glyph
local glue_code = nodecodes.glue
local hlist_code = nodecodes.hlist
local kern_code = nodecodes.kern
local par_code = nodecodes.par
local line_code = nodes.listcodes.line
local fontkern_code = nodes.kerncodes.fontkern
local nuts = nodes.nuts
local findtail = nuts.tail
local getlist = nuts.getlist
local getnext = nuts.getnext
local getprev = nuts.getprev
local getid = nuts.getid
local getsubtype = nuts.getsubtype
local getreplace = nuts.getreplace
local getdiscpart = nuts.getdiscpart
local isglyph = nuts.isglyph
local nexthlist = nuts.traversers.list
local nextglyph = nuts.traversers.glyph
local setcolor = nodes.tracers.colors.set
local setaction = nodes.tasks.setaction
local hash = table.setmetatableindex("number")
local report = logs.reporter("hyphenated")
local trace_detail = false
-- local nexthlist = nuts.traversers.list
-- local nextglyph = nuts.traversers.glyph
--
-- local setcolor = nodes.tracers.colors.set
--
-- function nodes.handlers.showhyphenation(head)
-- for current, id, subtype, list in nexthlist, head do
-- if subtype == line_code then
-- for n in nextglyph, list do
-- local d = getdiscpart(n)
-- if d == 0 then
-- -- nothing
-- elseif d == 1 then
-- setcolor(n,"red") -- pre
-- elseif d == 2 then
-- setcolor(n,"blue") -- post
-- elseif d == 3 then
-- setcolor(n,"green") -- replace
-- end
-- end
-- end
-- end
-- return head
-- end
local hash = table.setmetatableindex("number")
local characters = fonts.hashes.characters
local function collect(t,head)
local last = nil
while head do
local char, id = isglyph(head)
if char then
local u = characters[id][char].unicode
if u then
if type(u) == "table" then
for i=1,#u do
t[#t+1] = utfchar(u[i])
end
else
t[#t+1] = utfchar(u)
end
else
t[#t+1] = utfchar(char)
end
last = head
elseif id == disc_code then
collect(t,getreplace(head))
elseif id == kern_code and getsubtype(head,fontkern_code) then
-- we're ok
else
break
end
head = getnext(head)
end
return last and getdiscpart(last) == 1
end
local function getpostpart(current)
local first = nil
while current do
local id = getid(current)
if id == glue_code then
if not specialskips[getsubtype(current)] then
break
end
elseif id == glyph_code or id == disc_code then
return current
elseif id ~= par_code then
break
end
current = getnext(current)
end
end
local function findprepart(current)
local tail = findtail(current)
while tail do
local id = getid(tail)
if id == glue_code then
if not specialskips[getsubtype(tail)] then
break
end
elseif id == glyph_code and getdiscpart(tail) == 1 then
return tail
else
break
end
tail = getprev(tail)
end
end
local function getprepart(disc)
local back = getprev(disc)
local okay = back
while okay do
local id = getid(okay)
if id == glyph_code or id == disc_code or (id == kern_code and getsubtype(okay,fontkern_code)) then
back = okay
else
break
end
okay = getprev(okay)
end
return back
end
function nodes.handlers.showhyphenation(head)
local current = head
local word = { }
while current do
if getid(current) == hlist_code and getsubtype(current) == line_code then
local list = getlist(current)
if list then
if #word > 0 then
local after = getpostpart(list)
local more = collect(word,after)
if more then
goto skip
else
word = concat(word)
if trace_detail then
local r = status.readstate
report("around line %s in file %s: %s",r.linenumber or "-",file.basename(r.filename),word)
end
hash[word] = hash[word] + 1
word = { }
end
end
local last = findprepart(list)
if last then
local before = getprepart(last)
collect(word,before)
end
::skip::
end
end
current = getnext(current)
end
return head
end
local initialize ; initialize = function()
logs.registerfinalactions(function()
logs.startfilelogging(report,"hyphenated words")
if hash and next(hash) then
for word, count in sortedhash(hash) do
report("%4i : %s",count,word)
end
else
report("nothing hyphenated")
end
logs.stopfilelogging()
end)
--
statistics.register("hyphenation",function()
local n = 0
local m = 0
for k, v in sortedhash(hash) do
n = n + 1
m = m + v
end
return string.format("%i hyphenated words, %i unique words",m,n)
end)
initialize = false
end
trackers.register("hyphenation.applied", function(v)
setaction("finalizers","nodes.handlers.showhyphenation",v)
if v and initialize then
initialize()
end
end)
trackers.register("hyphenation.applied.console", function(v)
setaction("finalizers","nodes.handlers.showhyphenation",v)
trace_detail = v
if v and initialize then
initialize()
end
end)
function nodes.handlers.visualizehyphenation(head)
for current, id, subtype, list in nexthlist, head do
if subtype == line_code then
for n in nextglyph, list do
local d = getdiscpart(n)
if d == 0 then
-- nothing
elseif d == 1 then
setcolor(n,"red") -- pre
elseif d == 2 then
setcolor(n,"blue") -- post
elseif d == 3 then
setcolor(n,"green") -- replace
end
end
end
end
return head
end
trackers.register("hyphenation.applied.visualize", function(v)
setaction("finalizers","nodes.handlers.visualizehyphenation",v)
end)
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