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|
if not modules then modules = { } end modules ['node-tra'] = {
version = 1.001,
comment = "companion to node-ini.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
--[[ldx--
<p>This is rather experimental. We need more control and some of this
might become a runtime module instead. This module will be cleaned up!</p>
--ldx]]--
local utfchar = utf.char
local format, match, gmatch, concat, rep = string.format, string.match, string.gmatch, table.concat, string.rep
local lpegmatch = lpeg.match
local clock = os.gettimeofday or os.clock -- should go in environment
local report_nodes = logs.reporter("nodes","tracing")
nodes = nodes or { }
local nodes, node, context = nodes, node, context
local tracers = nodes.tracers or { }
nodes.tracers = tracers
local tasks = nodes.tasks or { }
nodes.tasks = tasks
local handlers = nodes.handlers or {}
nodes.handlers = handlers
local injections = nodes.injections or { }
nodes.injections = injections
local traverse_nodes = node.traverse
local traverse_by_id = node.traverse_id
local count_nodes = nodes.count
local nodecodes = nodes.nodecodes
local whatcodes = nodes.whatcodes
local skipcodes = nodes.skipcodes
local fillcodes = nodes.fillcodes
local glyph_code = nodecodes.glyph
local hlist_code = nodecodes.hlist
local vlist_code = nodecodes.vlist
local disc_code = nodecodes.disc
local glue_code = nodecodes.glue
local kern_code = nodecodes.kern
local rule_code = nodecodes.rule
local whatsit_code = nodecodes.whatsit
local spec_code = nodecodes.glue_spec
local localpar_code = whatcodes.localpar
local dir_code = whatcodes.dir
local nodepool = nodes.pool
local dimenfactors = number.dimenfactors
local formatters = string.formatters
-- this will be reorganized:
function nodes.showlist(head, message)
if message then
report_nodes(message)
end
for n in traverse_nodes(head) do
report_nodes(tostring(n))
end
end
function nodes.handlers.checkglyphs(head,message)
local t = { }
for g in traverse_by_id(glyph_code,head) do
t[#t+1] = formatters["%U:%s"](g.char,g.subtype)
end
if #t > 0 then
if message and message ~= "" then
report_nodes("%s, %s glyphs: % t",message,#t,t)
else
report_nodes("%s glyphs: % t",#t,t)
end
end
return false
end
function nodes.handlers.checkforleaks(sparse)
local l = { }
local q = node.usedlist()
for p in traverse(q) do
local s = table.serialize(nodes.astable(p,sparse),nodecodes[p.id])
l[s] = (l[s] or 0) + 1
end
node.flush_list(q)
for k, v in next, l do
write_nl(formatters["%s * %s"](v,k))
end
end
local f_sequence = formatters["U+%04X:%s"]
local function tosequence(start,stop,compact)
if start then
local t = { }
while start do
local id = start.id
if id == glyph_code then
local c = start.char
if compact then
if start.components then
t[#t+1] = tosequence(start.components,nil,compact)
else
t[#t+1] = utfchar(c)
end
else
t[#t+1] = f_sequence(c,utfchar(c))
end
elseif id == whatsit_code and start.subtype == localpar_code or start.subtype == dir_code then
t[#t+1] = "[" .. start.dir .. "]"
elseif id == rule_code then
if compact then
t[#t+1] = "|"
else
t[#t+1] = nodecodes[id]
end
else
if compact then
t[#t+1] = "[]"
else
t[#t+1] = nodecodes[id]
end
end
if start == stop then
break
else
start = start.next
end
end
if compact then
return concat(t)
else
return concat(t," ")
end
else
return "[empty]"
end
end
nodes.tosequence = tosequence
function nodes.report(t,done)
report_nodes("output %a, %changed %a, %s nodes",status.output_active,done,count_nodes(t))
end
function nodes.packlist(head)
local t = { }
for n in traverse(head) do
t[#t+1] = tostring(n)
end
return t
end
function nodes.idstostring(head,tail)
local t, last_id, last_n = { }, nil, 0
for n in traverse_nodes(head,tail) do -- hm, does not stop at tail
local id = n.id
if not last_id then
last_id, last_n = id, 1
elseif last_id == id then
last_n = last_n + 1
else
if last_n > 1 then
t[#t+1] = formatters["[%s*%s]"](last_n,nodecodes[last_id] or "?")
else
t[#t+1] = formatters["[%s]"](nodecodes[last_id] or "?")
end
last_id, last_n = id, 1
end
if n == tail then
break
end
end
if not last_id then
t[#t+1] = "no nodes"
elseif last_n > 1 then
t[#t+1] = formatters["[%s*%s]"](last_n,nodecodes[last_id] or "?")
else
t[#t+1] = formatters["[%s]"](nodecodes[last_id] or "?")
end
return concat(t," ")
end
-- function nodes.xidstostring(head,tail) -- only for special tracing of backlinks
-- local n = head
-- while n.next do
-- n = n.next
-- end
-- local t, last_id, last_n = { }, nil, 0
-- while n do
-- local id = n.id
-- if not last_id then
-- last_id, last_n = id, 1
-- elseif last_id == id then
-- last_n = last_n + 1
-- else
-- if last_n > 1 then
-- t[#t+1] = formatters["[%s*%s]"](last_n,nodecodes[last_id] or "?")
-- else
-- t[#t+1] = formatters["[%s]"](nodecodes[last_id] or "?")
-- end
-- last_id, last_n = id, 1
-- end
-- if n == head then
-- break
-- end
-- n = n.prev
-- end
-- if not last_id then
-- t[#t+1] = "no nodes"
-- elseif last_n > 1 then
-- t[#t+1] = formatters["[%s*%s]"](last_n,nodecodes[last_id] or "?")
-- else
-- t[#t+1] = formatters["[%s]"](nodecodes[last_id] or "?")
-- end
-- return table.concat(table.reversed(t)," ")
-- end
local function showsimplelist(h,depth,n)
while h do
write_nl(rep(" ",n) .. tostring(h))
if not depth or n < depth then
local id = h.id
if id == hlist_code or id == vlist_code then
showsimplelist(h.list,depth,n+1)
end
end
h = h.next
end
end
--~ \startluacode
--~ callback.register('buildpage_filter',function() nodes.show_simple_list(tex.lists.contrib_head) end)
--~ \stopluacode
--~ \vbox{b\footnote{n}a}
--~ \startluacode
--~ callback.register('buildpage_filter',nil)
--~ \stopluacode
nodes.showsimplelist = function(h,depth) showsimplelist(h,depth,0) end
local function listtoutf(h,joiner,textonly,last)
local joiner = (joiner == true and utfchar(0x200C)) or joiner -- zwnj
local w = { }
while h do
local id = h.id
if id == glyph_code then -- always true
w[#w+1] = utfchar(h.char)
if joiner then
w[#w+1] = joiner
end
elseif id == disc_code then
local pre, rep, pos = h.pre, h.replace, h.post
w[#w+1] = formatters["[%s|%s|%s]"] (
pre and listtoutf(pre,joiner,textonly) or "",
rep and listtoutf(rep,joiner,textonly) or "",
mid and listtoutf(mid,joiner,textonly) or ""
)
elseif textonly then
if id == glue_code and h.spec and h.spec.width > 0 then
w[#w+1] = " "
end
else
w[#w+1] = "[-]"
end
if h == last then
break
else
h = h.next
end
end
return concat(w)
end
nodes.listtoutf = listtoutf
local what = { [0] = "unknown", "line", "box", "indent", "row", "cell" }
local function showboxes(n,symbol,depth)
depth, symbol = depth or 0, symbol or "."
for n in traverse_nodes(n) do
local id = n.id
if id == hlist_code or id == vlist_code then
local s = n.subtype
report_nodes(rep(symbol,depth) .. what[s] or s)
showboxes(n.list,symbol,depth+1)
end
end
end
nodes.showboxes = showboxes
local ptfactor = dimenfactors.pt
local bpfactor = dimenfactors.bp
local stripper = lpeg.patterns.stripzeros
-- start redefinition
--
-- -- if fmt then
-- -- return formatters[fmt](n*dimenfactors[unit],unit)
-- -- else
-- -- return match(formatters["%.20f"](n*dimenfactors[unit]),"(.-0?)0*$") .. unit
-- -- end
--
-- redefined:
local dimenfactors = number.dimenfactors
local function numbertodimen(d,unit,fmt,strip)
if not d then
local str = formatters[fmt](0,unit)
return strip and lpegmatch(stripper,str) or str
end
local t = type(d)
if t == 'string' then
return d
end
if unit == true then
unit = "pt"
fmt = "%0.5f%s"
else
unit = unit or 'pt'
if not fmt then
fmt = "%s%s"
elseif fmt == true then
fmt = "%0.5f%s"
end
end
if t == "number" then
local str = formatters[fmt](d*dimenfactors[unit],unit)
return strip and lpegmatch(stripper,str) or str
end
local id = node.id
if id == kern_code then
local str = formatters[fmt](d.width*dimenfactors[unit],unit)
return strip and lpegmatch(stripper,str) or str
end
if id == glue_code then
d = d.spec
end
if not d or not d.id == spec_code then
local str = formatters[fmt](0,unit)
return strip and lpegmatch(stripper,str) or str
end
local width = d.width
local plus = d.stretch_order
local minus = d.shrink_order
local stretch = d.stretch
local shrink = d.shrink
if plus ~= 0 then
plus = " plus " .. stretch/65536 .. fillcodes[plus]
elseif stretch ~= 0 then
plus = formatters[fmt](stretch*dimenfactors[unit],unit)
plus = " plus " .. (strip and lpegmatch(stripper,plus) or plus)
else
plus = ""
end
if minus ~= 0 then
minus = " minus " .. shrink/65536 .. fillcodes[minus]
elseif shrink ~= 0 then
minus = formatters[fmt](shrink*dimenfactors[unit],unit)
minus = " minus " .. (strip and lpegmatch(stripper,minus) or minus)
else
minus = ""
end
local str = formatters[fmt](d.width*dimenfactors[unit],unit)
return (strip and lpegmatch(stripper,str) or str) .. plus .. minus
end
number.todimen = numbertodimen
function number.topoints (n,fmt) return numbertodimen(n,"pt",fmt) end
function number.toinches (n,fmt) return numbertodimen(n,"in",fmt) end
function number.tocentimeters (n,fmt) return numbertodimen(n,"cm",fmt) end
function number.tomillimeters (n,fmt) return numbertodimen(n,"mm",fmt) end
function number.toscaledpoints(n,fmt) return numbertodimen(n,"sp",fmt) end
function number.toscaledpoints(n) return n .. "sp" end
function number.tobasepoints (n,fmt) return numbertodimen(n,"bp",fmt) end
function number.topicas (n,fmt) return numbertodimen(n "pc",fmt) end
function number.todidots (n,fmt) return numbertodimen(n,"dd",fmt) end
function number.tociceros (n,fmt) return numbertodimen(n,"cc",fmt) end
function number.tonewdidots (n,fmt) return numbertodimen(n,"nd",fmt) end
function number.tonewciceros (n,fmt) return numbertodimen(n,"nc",fmt) end
-- stop redefinition
local points = function(n)
if not n or n == 0 then
return "0pt"
elseif type(n) == "number" then
return lpegmatch(stripper,format("%.5fpt",n*ptfactor)) -- faster than formatter
else
return numbertodimen(n,"pt",true,true) -- also deals with nodes
end
end
local basepoints = function(n)
if not n or n == 0 then
return "0bp"
elseif type(n) == "number" then
return lpegmatch(stripper,format("%.5fbp",n*bpfactor)) -- faster than formatter
else
return numbertodimen(n,"bp",true,true) -- also deals with nodes
end
end
local pts = function(n)
if not n or n == 0 then
return "0pt"
elseif type(n) == "number" then
return format("%.5fpt",n*ptfactor) -- faster than formatter
else
return numbertodimen(n,"pt",true) -- also deals with nodes
end
end
local nopts = function(n)
if not n or n == 0 then
return "0"
else
return format("%.5f",n*ptfactor) -- faster than formatter
end
end
number.points = points
number.basepoints = basepoints
number.pts = pts
number.nopts = nopts
local colors = { }
tracers.colors = colors
local unsetvalue = attributes.unsetvalue
local a_color = attributes.private('color')
local a_colormodel = attributes.private('colormodel')
local m_color = attributes.list[a_color] or { }
function colors.set(n,c,s)
local mc = m_color[c]
if not mc then
n[a_color] = unsetvalue
else
if not n[a_colormodel] then
n[a_colormodel] = s or 1
end
n[a_color] = mc
end
return n
end
function colors.setlist(n,c,s)
local f = n
while n do
local mc = m_color[c]
if not mc then
n[a_color] = unsetvalue
else
if not n[a_colormodel] then
n[a_colormodel] = s or 1
end
n[a_color] = mc
end
n = n.next
end
return f
end
function colors.reset(n)
n[a_color] = unsetvalue
return n
end
-- maybe
local transparencies = { }
tracers.transparencies = transparencies
local a_transparency = attributes.private('transparency')
local m_transparency = attributes.list[a_transparency] or { }
function transparencies.set(n,t)
local mt = m_transparency[t]
if not mt then
n[a_transparency] = unsetvalue
else
n[a_transparency] = mt
end
return n
end
function transparencies.setlist(n,c,s)
local f = n
while n do
local mt = m_transparency[c]
if not mt then
n[a_transparency] = unsetvalue
else
n[a_transparency] = mt
end
n = n.next
end
return f
end
function transparencies.reset(n)
n[a_transparency] = unsetvalue
return n
end
-- for the moment here
nodes.visualizers = { }
function nodes.visualizers.handler(head)
return head, false
end
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