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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 type, next = type, next
local utfchar = utf.char
local concat, sortedhash = table.concat, table.sortedhash
local basename = file.basename
local status = status
local nodes = nodes
local is_letter = characters.is_letter
local is_hyphenator = characters.is_hyphenator
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 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 isnextglyph = nuts.isnextglyph
local nexthlist = nuts.traversers.list
local nextglyph = nuts.traversers.glyph
local traverse = nuts.traverse
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 characters = fonts.hashes.characters
local word = { }
local w = 0
----- function collect(word,head)
local function collect(head)
local last = nil
while head do
local nxt, char, id = isnextglyph(head)
if char then
local u = characters[id][char].unicode -- we could cache it
if type(u) == "table" then
for i=1,#u do
local c = u[i]
if is_letter[c] or is_hyphenator[c] then
-- word[#word+1] = utfchar(c)
w = w + 1 ; word[w] = utfchar(c)
end
end
else
local c = u or char
if is_letter[c] or is_hyphenator[c] then
-- word[#word+1] = utfchar(c)
w = w + 1 ; word[w] = utfchar(c)
end
end
last = head
elseif id == disc_code then
-- collect(word,getreplace(head))
collect(getreplace(head))
elseif id == kern_code and getsubtype(head,fontkern_code) then
-- we're ok
else
break
end
head = nxt
end
return last and getdiscpart(last) == 1
end
local function getpostpart(current)
for n, id, subtype in traverse(current) do
if id == glue_code then
if not specialskips[subtype] then
break
end
elseif id == glyph_code or id == disc_code then
return n
elseif id ~= par_code then
break
end
end
end
local function findprepart(current)
for n, id, subtype in traverse(current,true,true) do
if id == glue_code then
if not specialskips[subtype] then
break
end
elseif id == glyph_code and getdiscpart(n) == 1 then
return n
else
break
end
end
end
local function getprepart(disc)
local back = disc
for n, id, subtype in traverse(getprev(disc),true) do
if id == glyph_code or id == disc_code or (id == kern_code and subtype == fontkern_code) then
back = n
else
return back
end
end
return back
end
function nodes.handlers.showhyphenation(head)
-- local word = { }
w = 0
for current, id, subtype, list in nexthlist, head do
if list and subtype == line_code then
-- if #word > 0 then
if w > 0 then
local after = getpostpart(list)
-- local more = collect(word,after)
local more = collect(after)
if more then
goto skip
else
-- local result = concat(word)
local result = concat(word,"",1,w)
if trace_detail then
local r = status.readstate
report("around line %s in file %s: %s",r.linenumber or "-",basename(r.filename),result)
end
hash[result] = hash[result] + 1
-- word = { }
w = 0
end
end
local last = findprepart(list)
if last then
local before = getprepart(last)
-- collect(word,before)
collect(before)
end
::skip::
end
end
return head
end
local initialize initialize = function()
logs.registerfinalactions(function()
logs.startfilelogging(report,"hyphenated words")
if hash and next(hash) then
local oldname = file.nameonly(tex.jobname) .. "-hyphenated-words-old.txt"
local newname = file.nameonly(tex.jobname) .. "-hyphenated-words-new.txt"
local old = string.splitlines(string.strip(io.loaddata(oldname) or "")) or { }
local hsh = table.tohash(old)
local new = { }
for word, count in sortedhash(hash) do
report("%4i : %s",count,word)
if not hsh[word] then
new[#new+1] = word
end
end
logs.stopfilelogging()
report("old word list : %a",oldname)
report("new word list : %a",newname)
report("to be checked : %a",#new)
io.savedata(newname,concat(new,"\n"))
else
report("nothing hyphenated")
logs.stopfilelogging()
end
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)
-- local c, f = isglyph(current)
-- local char = chardata[f][c]
-- if char and type(char.unicode) == "table" then -- hackery test
local ligature_code = 0x8000 + nodes.glyphcodes.ligature
local ligature_mode = false
local color_n = { "red", "green", "blue" }
local color_l = { "darkred", "darkgreen", "darkblue" }
function nodes.handlers.visualizehyphenation(head)
for current, id, subtype, list in nexthlist, head do
if list and subtype == line_code then
if ligature_mode then
for n in nextglyph, list do
local d = getdiscpart(n)
local s = getsubtype(n)
if d > 0 and d < 4 then
if s == ligature_code then
setcolor(n,color_l[d])
else
setcolor(n,color_n[d])
end
elseif s == ligature_code then
setcolor(n,"darkgray")
end
end
else
for n in nextglyph, list do
local d = getdiscpart(n)
if d > 0 and d < 4 then
setcolor(n,color_n[d])
end
end
end
end
end
return head
end
trackers.register("hyphenation.applied.visualize", { true, false, "ligatures" }, function(v)
setaction("finalizers","nodes.handlers.visualizehyphenation",v)
ligature_mode = v == "ligatures"
end)
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