beta 2010.09.14 10:28

20 files changed, 1169 insertions, 42 deletions

diff --git a/scripts/context/lua/mtx-server-ctx-fonttest.lua b/scripts/context/lua/mtx-server-ctx-fonttest.lua
index 26299fc4b..d2f11ca95 100644
--- a/scripts/context/lua/mtx-server-ctx-fonttest.lua
+++ b/scripts/context/lua/mtx-server-ctx-fonttest.lua
@@ -11,7 +11,7 @@ dofile(resolvers.findfile("trac-lmx.lua","tex"))
 dofile(resolvers.findfile("font-ott.lua","tex"))
 dofile(resolvers.findfile("font-syn.lua","tex"))
 dofile(resolvers.findfile("font-mis.lua","tex"))
-dofile(resolvers.findfile("font-otp.lua","tex"))
+--~ dofile(resolvers.findfile("font-otp.lua","tex"))
 
 local format, gsub, concat, match, find = string.format, string.gsub, table.concat, string.match, string.find
 
diff --git a/scripts/context/lua/mtx-server.lua b/scripts/context/lua/mtx-server.lua
index 374a9e8f0..4fe0a6ac8 100644
--- a/scripts/context/lua/mtx-server.lua
+++ b/scripts/context/lua/mtx-server.lua
@@ -301,6 +301,7 @@ function scripts.webserver.run(configuration)
             local hashed = url.hashed(fullurl)
             local query = url.query(hashed.query)
             local filename = hashed.path
+--~ table.print(hashed)
             if filename then
                 filename = socket.url.unescape(filename)
                 logs.simple("requested action: %s",filename)
diff --git a/scripts/context/lua/mtx-texworks.lua b/scripts/context/lua/mtx-texworks.lua
index 589246ccd..38a162c0e 100644
--- a/scripts/context/lua/mtx-texworks.lua
+++ b/scripts/context/lua/mtx-texworks.lua
@@ -25,7 +25,7 @@ local texworkininame = "texworks.ini"
 function scripts.texworks.start(indeed)
     local workname = (os.type == "windows" and "texworks.exe") or "texworks"
     local fullname = nil
-    local binpaths = file.split_path(os.getenv("PATH")) or file.split_path(os.getenv("path"))
+    local binpaths = file.splitpath(os.getenv("PATH")) or file.splitpath(os.getenv("path"))
     local usedsignal = texworkssignal
     local datapath = resolvers.findfile(usedsignal,"other text files") or ""
     if datapath ~= "" then
diff --git a/scripts/context/lua/mtxrun.lua b/scripts/context/lua/mtxrun.lua
index 246d08103..216a8080f 100644
--- a/scripts/context/lua/mtxrun.lua
+++ b/scripts/context/lua/mtxrun.lua
@@ -2505,10 +2505,11 @@ end
 
 -- todo: cache them
 
-function url.hashed(str)
+function url.hashed(str) -- not yet ok (/test?test)
     local s = url.split(str)
     local somescheme = s[1] ~= ""
-    if not somescheme then
+    local somequery  = s[4] ~= ""
+    if not somescheme and not somequery then
         return {
             scheme    = "file",
             authority = "",
@@ -2531,6 +2532,7 @@ function url.hashed(str)
     end
 end
 
+
 function url.hasscheme(str)
     return url.split(str)[1] ~= ""
 end
diff --git a/scripts/context/stubs/mswin/mtxrun.lua b/scripts/context/stubs/mswin/mtxrun.lua
index 246d08103..216a8080f 100644
--- a/scripts/context/stubs/mswin/mtxrun.lua
+++ b/scripts/context/stubs/mswin/mtxrun.lua
@@ -2505,10 +2505,11 @@ end
 
 -- todo: cache them
 
-function url.hashed(str)
+function url.hashed(str) -- not yet ok (/test?test)
     local s = url.split(str)
     local somescheme = s[1] ~= ""
-    if not somescheme then
+    local somequery  = s[4] ~= ""
+    if not somescheme and not somequery then
         return {
             scheme    = "file",
             authority = "",
@@ -2531,6 +2532,7 @@ function url.hashed(str)
     end
 end
 
+
 function url.hasscheme(str)
     return url.split(str)[1] ~= ""
 end
diff --git a/scripts/context/stubs/mswin/mtxworks.exe b/scripts/context/stubs/mswin/mtxworks.exe
new file mode 100755
index 000000000..2d45f2749
--- /dev/null
+++ b/scripts/context/stubs/mswin/mtxworks.exe
diff --git a/scripts/context/stubs/unix/mtxrun b/scripts/context/stubs/unix/mtxrun
index 246d08103..216a8080f 100755
--- a/scripts/context/stubs/unix/mtxrun
+++ b/scripts/context/stubs/unix/mtxrun
@@ -2505,10 +2505,11 @@ end
 
 -- todo: cache them
 
-function url.hashed(str)
+function url.hashed(str) -- not yet ok (/test?test)
     local s = url.split(str)
     local somescheme = s[1] ~= ""
-    if not somescheme then
+    local somequery  = s[4] ~= ""
+    if not somescheme and not somequery then
         return {
             scheme    = "file",
             authority = "",
@@ -2531,6 +2532,7 @@ function url.hashed(str)
     end
 end
 
+
 function url.hasscheme(str)
     return url.split(str)[1] ~= ""
 end
diff --git a/scripts/context/stubs/unix/mtxworks b/scripts/context/stubs/unix/mtxworks
new file mode 100755
index 000000000..ef8f230c3
--- /dev/null
+++ b/scripts/context/stubs/unix/mtxworks
@@ -0,0 +1,2 @@
+#!/bin/sh
+mtxrun --script texworks --start
diff --git a/tex/context/base/back-exp.lua b/tex/context/base/back-exp.lua
new file mode 100644
index 000000000..d44e7957d
--- /dev/null
+++ b/tex/context/base/back-exp.lua
@@ -0,0 +1,1010 @@
+if not modules then modules = { } end modules ['back-exp'] = {
+    version   = 1.001,
+    comment   = "companion to back-exp.mkiv",
+    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+    copyright = "PRAGMA ADE / ConTeXt Development Team",
+    license   = "see context related readme files"
+}
+
+-- language       -> only mainlanguage, local languages should happen through start/stoplanguage
+-- tocs/registers -> maybe add a stripper (i.e. just don't flush entries in final tree)
+
+-- Because we need to look ahead we now always build a tree (this was optional in
+-- the beginning). The extra overhead in the frontend is neglectable.
+
+local nodecodes       = nodes.nodecodes
+local traverse_nodes  = node.traverse
+local hlist_code      = nodecodes.hlist
+local vlist_code      = nodecodes.vlist
+
+local function locate(start,wantedid,wantedsubtype)
+    for n in traverse_nodes(start) do
+        local id = n.id
+        if id == wantedid then
+            if not wantedsubtype or n.subtype == wantedsubtype then
+                return n
+            end
+        elseif id == hlist_code or id == vlist_code then
+            local found = locate(n.list,wantedid,wantedsubtype)
+            if found then
+                return found
+            end
+        end
+    end
+end
+
+nodes.locate =  locate
+
+local next, type = next, type
+local format, match, concat, rep = string.format, string.match, table.concat, string.rep
+local lpegmatch = lpeg.match
+local utfchar = utf.char
+local insert, remove = table.insert, table.remove
+
+local trace_export = false  trackers.register  ("structures.export",           function(v) trace_export = v end)
+local trace_spaces = false  trackers.register  ("structures.export.spaces",    function(v) trace_spaces = v end)
+local trace_tree   = false  trackers.register  ("structures.export.showtree",  function(v) trace_tree   = v end)
+local less_state   = false  directives.register("structures.export.lessstate", function(v) less_state   = v end)
+
+local report_export = logs.new("export")
+
+local nodes           = nodes
+local attributes      = attributes
+local variables       = interfaces.variables
+
+local tasks           = nodes.tasks
+local fontchar        = fonts.chr
+local languagenames   = languages.numbers
+
+local nodecodes       = nodes.nodecodes
+local skipcodes       = nodes.skipcodes
+local whatsitcodes    = nodes.whatsitcodes
+local listcodes       = nodes.listcodes
+
+local hlist_code      = nodecodes.hlist
+local vlist_code      = nodecodes.vlist
+local glyph_code      = nodecodes.glyph
+local glue_code       = nodecodes.glue
+local kern_code       = nodecodes.kern
+local disc_code       = nodecodes.disc
+local insert_code     = nodecodes.insert
+local whatsit_code    = nodecodes.whatsit
+local refximage_code  = whatsitcodes.pdfrefximage
+
+local userskip_code   = skipcodes.userskip
+local rightskip_code  = skipcodes.rightskip
+local parfillskip_code= skipcodes.parfillskip
+
+local line_code       = listcodes.line
+
+local a_tagged        = attributes.private('tagged')
+local a_image         = attributes.private('image')
+
+local a_taggedalign   = attributes.private("taggedalign")
+local a_taggedcolumns = attributes.private("taggedcolumns")
+local a_taggedrows    = attributes.private("taggedrows")
+local a_taggedpar     = attributes.private("taggedpar")
+local a_taggedpacked  = attributes.private("taggedpacked")
+local a_taggedsymbol  = attributes.private("taggedsymbol")
+local a_taggedinsert  = attributes.private("taggedinsert")
+
+local a_reference     = attributes.private('reference')
+
+local has_attribute   = node.has_attribute
+local traverse_nodes  = node.traverse
+local slide_nodelist  = node.slide
+local texattribute    = tex.attribute
+local unsetvalue      = attributes.unsetvalue
+local locate_node     = nodes.locate
+
+local references      = structures.references
+local structurestags  = structures.tags
+local taglist         = structurestags.taglist
+local properties      = structurestags.properties
+local userdata        = structurestags.userdata -- might be combines with taglist
+
+local version       = "0.10"
+local result        = nil
+local entry         = nil
+local attributehash = { }
+local handle        = nil
+local hyphen        = utfchar(0xAD)
+local colonsplitter = lpeg.splitat(":")
+local dashsplitter  = lpeg.splitat("-")
+local threshold     = 65536
+local indexing      = false
+local linedone      = false
+local inlinedepth   = 0
+local collapse      = true
+local tree          = { data = { }, depth = 0 } -- root
+local treestack     = { }
+local treehash      = { }
+local extras        = { }
+local nofbreaks     = 0
+local listhash      = { }
+
+local last          = nil
+local lastpar       = nil
+
+local joiner_1      = " "
+local joiner_2      = " " -- todo: test if this one can alwasy be ""
+local joiner_3      = " "
+local joiner_4      = " "
+local joiner_5      = " "
+local joiner_6      = " "
+local joiner_7      = " "
+local joiner_8      = " "
+local joiner_9      = " "
+local joiner_0      = " "
+
+-- local P, C, Cc = lpeg.P, lpeg.C, lpeg.Cc
+--
+-- local dash, colon = P("-"), P(":")
+--
+-- local precolon, predash, rest = P((1-colon)^1), P((1-dash )^1), P(1)^1
+--
+-- local tagsplitter = C(precolon) * colon * C(predash) * dash * C(rest) +
+--                     C(predash)  * dash  * Cc(nil)           * C(rest)
+
+local spaces = { } -- watch how we also moved the -1 in depth-1 to the creator
+
+setmetatable(spaces, { __index = function(t,k) t[k] = rep("  ",k-1) return t[k] end } )
+
+properties.vspace = { export = "break", nature = "display" }
+
+local function makebreak(entry)
+    nofbreaks = nofbreaks + 1
+    local t, tl = { }, entry[1]
+    if tl then
+        for i=1,#tl do
+            t[i] = tl[i]
+        end
+    end
+    t[#t+1] = "break-" .. nofbreaks
+    return { t, { "" }, 0, 0 }
+end
+
+local function makebreaknode(node)
+    nofbreaks = nofbreaks + 1
+    return {
+        tg         = "break",
+        fulltag    = "break-" .. nofbreaks,
+        n          = nofbreaks,
+        depth      = node.depth,
+        element    = "break",
+        nature     = "display",
+        data       = { },
+        attribute  = { } ,
+        parnumber  = 0,
+    }
+end
+
+function extras.document(element,detail,n,fulltag,hash)
+    handle:write(" language='",languagenames[tex.count.mainlanguagenumber],"'")
+    if not less_state then
+        handle:write(" file='",tex.jobname,"'")
+        handle:write(" date='",os.date(),"'")
+        handle:write(" context='",environment.version,"'")
+        handle:write(" version='",version,"'")
+    end
+end
+
+local snames, snumbers = { }, { }
+
+function structurestags.setitemgroup(packed,symbol,di)
+    local s = snumbers[symbol]
+    if not s then
+        s = #snames + 1
+        snames[s], snumbers[symbol] = symbol, s
+    end
+    texattribute[a_taggedpacked] = packed and 1 or unsetvalue
+    texattribute[a_taggedsymbol] = s
+end
+
+local insertids = { }
+
+function structurestags.setdescriptionid(tag,n)
+    local nd = structures.notes.get(tag,n)
+    if nd then
+        local r = nd.references
+        texattribute[a_taggedinsert] = r.internal or unsetvalue
+    else
+        texattribute[a_taggedinsert] = unsetvalue
+    end
+end
+
+function extras.descriptiontag(element,detail,n,fulltag,di)
+    local hash = attributehash[fulltag]
+    if hash then
+        local v = hash.insert
+        v = v and insertids[v]
+        if v then
+            handle:write(" insert='",v,"'")
+        end
+    end
+end
+
+function extras.descriptionsymbol(element,detail,n,fulltag,di)
+    local hash = attributehash[fulltag]
+    if hash then
+        local v = hash.insert
+        v = v and insertids[v]
+        if v then
+            handle:write(" insert='",v,"'")
+        end
+    end
+end
+
+function extras.image(element,detail,n,fulltag,di)
+    local hash = attributehash[fulltag]
+    if hash then
+        local v = hash.imageindex
+        if v then
+            local figure = img.ofindex(v)
+            if figure then
+                local fullname = figure.filepath
+                local name = file.basename(fullname)
+                local path = file.dirname(fullname)
+                local page = figure.page or 1
+                if name ~= "" then
+                    handle:write(" name='",name,"'")
+                end
+                if path ~= "" then
+                    handle:write(" path='",path,"'")
+                end
+                if page > 1 then
+                    handle:write(" page='",page,"'")
+                end
+            end
+        end
+    end
+end
+
+-- quite some code deals with exporting references  --
+
+local evaluators = { }
+local specials   = { }
+
+evaluators.inner = function(var)
+    local inner = var.inner
+    if var.inner then
+        handle:write(" location='",inner,"'")
+    end
+end
+
+evaluators.outer = function(var)
+    local file, url = references.checkedfileorurl(var.outer,var.outer)
+    if url then
+        handle:write(" url='",file,"'")
+    elseif file then
+        handle:write(" file='",file,"'")
+    end
+end
+
+evaluators["outer with inner"] = function(var)
+    local file = references.checkedfile(var.f)
+    if file then
+        handle:write(" file='",file,"'")
+    end
+    local inner = var.inner
+    if var.inner then
+        handle:write(" location='",inner,"'")
+    end
+end
+
+evaluators.special = function(var)
+    local handler = specials[var.special]
+    if handler then
+        handler(var)
+    end
+end
+
+evaluators["special outer with operation"]     = evaluators.special
+evaluators["special operation"]                = evaluators.special
+evaluators["special operation with arguments"] = evaluators.special
+
+function specials.url(var)
+    local url = references.checkedurl(var.operation)
+    if url then
+        handle:write(" url='",url,"'")
+    end
+end
+
+function specials.file(var)
+    local file = references.checkedfile(var.operation)
+    if file then
+        handle:write(" file='",file,"'")
+    end
+end
+
+function specials.fileorurl(var)
+    local file, url = references.checkedfileorurl(var.operation,var.operation)
+    if url then
+        handle:write(" url='",file,"'")
+    elseif file then
+        handle:write(" file='",file,"'")
+    end
+end
+
+local function addreference(references) -- todo: specials -> exporters and then concat
+    if references then
+        local reference = references.reference
+        if reference and reference ~= "" then
+            local prefix = references.prefix
+            if prefix and prefix ~= "" then
+                handle:write(" prefix='",prefix,"'")
+            end
+            handle:write(" reference='",reference,"'")
+            for i=1,#references do
+                local r = references[i]
+                local e = evaluators[r.kind]
+                if e then
+                    e(r)
+                end
+            end
+        end
+    end
+end
+
+-- end of references related code  --
+
+function extras.link(element,detail,n,fulltag,di)
+    -- why so often
+    local hash = attributehash[fulltag]
+    if hash then
+        local references = hash.reference
+        if references then
+            addreference(structures.references.get(references))
+        end
+    end
+end
+
+function extras.section(element,detail,n,fulltag,di)
+    local hash = listhash[element]
+    hash = hash and hash[n]
+    addreference(hash and hash.references)
+end
+
+function extras.float(element,detail,n,fulltag,di)
+    local hash = listhash[element]
+    hash = hash and hash[n]
+    addreference(hash and hash.references)
+end
+
+function extras.itemgroup(element,detail,n,fulltag,di)
+    local data = di.data
+    for i=1,#data do
+        local di = data[i]
+        if type(di) == "table" and di.tg == "item" then
+            local ddata = di.data
+            for i=1,#ddata do
+                local ddi = ddata[i]
+                if type(ddi) == "table" then
+                    local tg = ddi.tg
+                    if tg == "itemtag" or tg == "itemcontent" then
+                        local hash = attributehash[ddi.fulltag]
+                        if hash then
+                            local v = hash.packed
+                            if v and v == 1 then
+                                handle:write(" packed='yes'")
+                            end
+                            local v = hash.symbol
+                            if v then
+                                handle:write(" symbol='",snames[v],"'")
+                            end
+                        end
+                        return
+                    end
+                end
+            end
+        end
+    end
+end
+
+function extras.tablecell(element,detail,n,fulltag,di)
+    local hash = attributehash[fulltag]
+    local v = hash.align
+    if not v or v == 0 then
+        -- normal
+    elseif v == 1 then
+        handle:write(" align='flushright'")
+    elseif v == 2 then
+        handle:write(" align='middle'")
+    elseif v == 3 then
+        handle:write(" align='flushleft'")
+    end
+    local v = hash.columns
+    if v and v > 1 then
+        handle:write(" columns='",v,"'")
+    end
+    local v = hash.rows
+    if v and v > 1 then
+        handle:write(" rows='",v,"'")
+    end
+end
+
+function extras.tabulatecell(element,detail,n,fulltag,di)
+    local hash = attributehash[fulltag]
+    local v = hash.align
+    if not v or v == 0 then
+        -- normal
+    elseif v == 1 then
+        handle:write(" align='flushright'")
+    elseif v == 2 then
+        handle:write(" align='middle'")
+    elseif v == 3 then
+        handle:write(" align='flushleft'")
+    end
+end
+
+local function emptytag(element,nature,depth)
+    handle:write("\n",spaces[depth],"<",element,"/>\n")
+end
+
+local function begintag(element,nature,depth,di,empty)
+    local detail, n, fulltag = di.detail, di.n, di.fulltag
+    if nature == "inline" then
+        linedone = false
+        inlinedepth = inlinedepth + 1
+    elseif nature == "mixed" then
+        if inlinedepth > 0 then
+        elseif linedone then
+            handle:write(spaces[depth])
+        else
+            handle:write("\n",spaces[depth])
+            linedone = false
+        end
+        inlinedepth = inlinedepth + 1
+    else
+        if inlinedepth > 0 then
+        elseif linedone then
+            handle:write(spaces[depth])
+        else
+            handle:write("\n",spaces[depth])
+            linedone = false
+        end
+    end
+    handle:write("<",element)
+    if detail then
+        handle:write(" detail='",detail,"'")
+    end
+    if indexing and n then
+        handle:write(" n='",n,"'")
+    end
+    local extra = extras[element]
+    if extra then
+        extra(element,detail,n,fulltag,di)
+    end
+    local u = userdata[fulltag]
+    if u then
+        for k, v in next, u do
+            handle:write(format(" %s=%q",k,v))
+        end
+    end
+    if not empty then
+        handle:write(">")
+        if inlinedepth > 0 then
+        elseif nature == "display" then
+            handle:write("\n")
+            linedone = true
+        end
+    end
+end
+
+local function endtag(element,nature,depth,empty)
+    if nature == "display" then
+        if inlinedepth == 0 then
+            if empty then
+                handle:write("</>\n")
+            else
+                if not linedone then
+                    handle:write("\n")
+                end
+                handle:write(spaces[depth],"</",element,">\n")
+            end
+            linedone = true
+        else
+            if empty then
+                handle:write("/>")
+            else
+                handle:write("</",element,">")
+            end
+        end
+    else
+        inlinedepth = inlinedepth - 1
+        if empty then
+            handle:write("/>")
+        else
+            handle:write("</",element,">")
+        end
+        linedone = false
+    end
+end
+
+local function push(fulltag,depth,entry)
+    local attribute, parnumber = entry[3], entry[4]
+ -- local tg, detail, n = lpegmatch(tagsplitter,fulltag)
+    local tag, n = lpegmatch(dashsplitter,fulltag)
+    local tg, detail = lpegmatch(colonsplitter,tag)
+    local element, nature
+    if detail then
+        local pd = properties[tag]
+        local pt = properties[tg]
+        element = pd and pd.export or pt and pt.export or tg
+        nature  = pd and pd.nature or pt and pt.nature or "inline"
+    else
+        local p = properties[tg]
+        element = p and p.export or tg
+        nature  = p and p.nature or "inline"
+    end
+    local t = {
+     -- parent     = tree,
+        tg         = tg,
+        fulltag    = fulltag,
+        detail     = detail,
+        n          = tonumber(n), -- more efficient
+        depth      = depth,
+        element    = element,
+        nature     = nature,
+        data       = { },
+        attribute  = attribute,
+        parnumber  = parnumber,
+        node       = entry[5],
+    }
+    local treedata = tree.data
+    treedata[#treedata+1] = t
+    insert(treestack,tree)
+    tree = t
+    local h = treehash[fulltag]
+    if h then
+        h[#h+1] = t
+    else
+        treehash[fulltag] = { t }
+    end
+end
+
+local function pop()
+    tree = remove(treestack)
+end
+
+local function flush(current,content)
+    if content then
+        if collapse then
+            tree.data[#tree.data+1] = content
+        else
+            handle:write(content)
+        end
+    end
+end
+
+local function flushresult(entry)
+    local current, content = entry[1], entry[2]
+    if not content then
+        -- skip
+    else
+        local newdepth, olddepth, content = #current, #treestack, concat(content)
+        if trace_export then
+            report_export("%3i => %3i : handling: ",olddepth,newdepth,current[newdepth])
+        end
+        if olddepth <= 0 then
+            for i=1,newdepth do
+                if trace_export then
+                    report_export("[1]  push :",current[i])
+                end
+                push(current[i],i,entry)
+            end
+            flush(current,content)
+        elseif newdepth < olddepth then
+            for i=newdepth,olddepth-1 do
+                if trace_export then
+                    report_export("[2a] pop  :",current[i])
+                end
+                pop()
+            end
+            -- we can have a pagebreak and for instance a new chapter
+            -- will mess up the structure then
+            for i=newdepth,1,-1 do
+                if current[i] ~= treestack[i].fulltag then -- needs checking
+                    if trace_export then
+                        report_export("[2b] pop  :",current[i])
+                    end
+                    pop()
+                else
+                    break
+                end
+            end
+            olddepth = #treestack
+            for i=olddepth+1,newdepth do
+                if trace_export then
+                    report_export("[2]  push :",current[i])
+                end
+                push(current[i],i,entry)
+            end
+            flush(current,content)
+        elseif newdepth > olddepth then
+            for i=olddepth,1,-1 do
+                if current[i] ~= treestack[i].fulltag then
+                    if trace_export then
+                        report_export("[3]  pop  :",current[i])
+                    end
+                    pop()
+                else
+                    break
+                end
+            end
+            olddepth = #treestack
+            for i=olddepth+1,newdepth do
+                if trace_export then
+                    report_export("[3]  push :",current[i])
+                end
+                push(current[i],i,entry)
+            end
+            flush(current,content)
+        elseif current[newdepth] == treestack[olddepth] then --move up ?
+            -- continuation
+            flush(current,content)
+        else
+            for i=olddepth,1,-1 do
+                if current[i] ~= treestack[i].fulltag then
+                    if trace_export then
+                        report_export("[4]  pop  :",current[i])
+                    end
+                    pop()
+                else
+                    break
+                end
+            end
+            olddepth = #treestack
+            for i=olddepth+1,newdepth do
+                if trace_export then
+                    report_export("[4]  push :",current[i])
+                end
+                push(current[i],i,entry)
+            end
+            flush(current,content)
+        end
+    end
+end
+
+local function checkinserts(data)
+    local nofinserts = 0
+    for i=1,#data do
+        local di = data[i]
+        if type(di) == "table" then -- id ~= false
+            if di.element == "descriptionsymbol" then
+                local i = attributehash[di.fulltag].insert
+                if i then
+                    nofinserts = nofinserts + 1
+                    insertids[i] = nofinserts
+                end
+            end
+            if di.data then
+                checkinserts(di.data)
+            end
+        end
+    end
+end
+
+local function checkreferences(data)
+    local c = structures.lists.collected
+    for i=1,#c do -- todo: make hash from name -> n
+        local ci = c[i]
+        local name = ci.metadata.kind
+        local hash = listhash[name]
+        if not hash then
+            hash = { }
+            listhash[name] = hash
+        end
+        local tag = ci.references.tag
+        if tag then
+            hash[tag] = ci
+        end
+    end
+end
+
+local function flushtree(data)
+    for i=1,#data do
+        local di = data[i]
+        if not di then
+        -- collapsed
+        elseif type(di) == "string" then
+            handle:write(di)
+            linedone = false
+        elseif not di.collapsed then
+            local element = di.element
+            if element == "break" then
+                emptytag(element,nature,di.depth)
+            else
+                local nature, depth = di.nature, di.depth
+                local did = di.data
+                local nid = #did
+                if nid == 0 or (nid == 1 and did[1] == "") then
+                    begintag(element,nature,depth,di,true)
+                    -- no content
+                    endtag(element,nature,depth,true)
+                else
+                    begintag(element,nature,depth,di)
+                    flushtree(did)
+                    endtag(element,nature,depth)
+                end
+            end
+        end
+    end
+end
+
+local function collapsetree()
+    for k, v in next, treehash do
+        local d = v[1].data
+        for i=2,#v do
+            local vi = v[i]
+            local vd = vi.data
+            local done = false
+            local lpn = v[i-1].parnumber
+            if lpn and lpn == 0 then lpn = nil end
+            if type(d[1]) ~= "string" then lpn = nil end -- no need anyway so no further testing needed
+            for j=1,#vd do
+                local vdj = vd[j]
+                if type(vdj) == "string" then
+                    -- experiment, should be improved
+                    -- can be simplified ... lpn instead of done
+                    if done then
+                        d[#d+1] = joiner_1
+                    else
+                        done = true
+                        local pn = vi.parnumber
+                        if not pn then
+                            d[#d+1], lpn = joiner_2, nil
+                        elseif not lpn then
+                            d[#d+1], lpn = joiner_3, pn
+                        elseif pn and pn ~= lpn then
+                            d[#d+1], lpn = makebreaknode(vi), pn
+                        else
+                         -- d[#d+1] = joiner_4 -- we need to be more clever
+                        end
+                    end
+                else
+                  -- lpn = nil
+                end
+if vdj ~= "" then
+                d[#d+1] = vdj -- hm, any?
+end
+                vd[j] = false
+            end
+            v[i].collapsed = true
+        end
+    end
+end
+
+local function prunetree(tree)
+    if not tree.collapsed then
+        local data = tree.data
+        if data then
+            local p = { }
+            for i=1,#data do
+                local d = data[i]
+                if type(d) == "table" then
+                    if not d.collapsed then
+                        prunetree(d)
+                        p[#p+1] = d
+                    end
+                elseif type(d) == "string" then
+                    p[#p+1] = d
+                end
+            end
+            tree.data = #p > 0 and p
+        end
+    end
+end
+
+function finishexport()
+    if entry then
+        local result = entry[2]
+        if result and result[#result] == " " then
+            result[#result] = nil -- nicer, remove last space
+        end
+        flushresult(entry)
+    end
+    for i=#treestack,1,-1 do
+        pop()
+    end
+end
+
+local function stopexport()
+    if handle then
+        report_export("finalizing")
+        finishexport()
+        if collapse then
+            collapsetree()
+            if trace_tree then
+                prunetree(tree)
+                report_export(table.serialize(tree,"root"))
+            end
+        end
+        checkinserts(tree.data)
+        checkreferences(tree.data)
+        flushtree(tree.data)
+        handle = false
+    end
+end
+
+local preamble = [[
+<?xml standalone='yes' encoding='utf-8' ?>
+
+<!-- input filename   : %- 17s -->
+<!-- processing date  : %- 17s -->
+<!-- context version  : %- 17s -->
+<!-- exporter version : %- 17s -->
+]]
+
+local done = false
+
+local function startexport(v)
+    if not done then
+        local filename = tex.jobname
+        if type(v) == "string" and v ~= variables.yes and v ~= "" then
+            filename = v
+        end
+        local filename = file.addsuffix(filename,"export") -- todo: v
+        handle = io.open(filename,"wb")
+        if handle then
+            nodes.tasks.appendaction("shipouts", "normalizers", "nodes.handlers.export")
+            report_export("saving xml in '%s",filename)
+            handle:write(format(preamble,tex.jobname,os.date(),environment.version,version))
+            luatex.registerstopactions(stopexport)
+        end
+        done = true
+    end
+end
+
+directives.register("backend.export",startexport)
+
+local function injectbreak()
+    flushresult(entry)
+    flushresult(makebreak(entry))
+    result = { }
+    entry = { entry[1], result, last, lastpar }
+end
+
+local function collectresults(head,list,p)
+    local preceding = p or false -- nasty hack
+    for n in traverse_nodes(head) do
+        local id = n.id -- 14: image, 8: literal (mp)
+        if id == glyph_code then
+            local at = has_attribute(n,a_tagged)
+            if at then
+                local components =  n.components
+                if components then
+                    collectresults(components,nil)
+                    preceding = false
+                else
+                    if last ~= at then
+                        local tl = taglist[at]
+                        if entry then
+                            flushresult(entry)
+                        end
+                        if preceding then
+                            preceding = false
+                            result = { joiner_5 }
+                        else
+                            result = { }
+                        end
+                        lastpar = has_attribute(n,a_taggedpar)
+                        entry = { tl , result, at, lastpar, n }
+                        attributehash[tl[#tl]] = { -- this includes detail !
+                            align     = has_attribute(n,a_taggedalign  ),
+                            columns   = has_attribute(n,a_taggedcolumns),
+                            rows      = has_attribute(n,a_taggedrows   ),
+                            packed    = has_attribute(n,a_taggedpacked ),
+                            symbol    = has_attribute(n,a_taggedsymbol ),
+                            insert    = has_attribute(n,a_taggedinsert ),
+                            reference = has_attribute(n,a_reference    ),
+                        }
+                        last = at
+                    elseif last then
+                        local at = has_attribute(n,a_taggedpar)
+                        if at ~= lastpar then
+                            injectbreak()
+                            lastpar = at
+                        end
+                    end
+                    local c = n.char
+                    if c == 0x26 then
+                        result[#result+1] = "&amp;"
+                    elseif c == 0x3E then
+                        result[#result+1] = "&gt;"
+                    elseif c == 0x3C then
+                        result[#result+1] = "&lt;"
+                    elseif c == 0 then
+                        result[#result+1] = "" -- utfchar(0) -- todo: check if "" is needed
+                    else
+                        local fc = fontchar[n.font]
+                        if fc then
+                            fc = fc and fc[c]
+                            if fc then
+                                local u = fc.tounicode
+                                if u then
+                                    for s in gmatch(u,"....") do -- is this ok?
+                                        result[#result+1] = utfchar(tonumber(s,16))
+                                    end
+                                else
+                                    result[#result+1] = utfchar(c)
+                                end
+                            end
+                        else
+                            result[#result+1] = utfchar(c)
+                        end
+                    end
+                end
+            end
+        elseif id == hlist_code or id == vlist_code then
+            local ai = has_attribute(n,a_image)
+            if ai then
+                local at = has_attribute(n,a_tagged)
+                if entry then
+                    flushresult(entry)
+                    result = { }
+                    entry[2] = result -- mess, to be sorted out, but otherwise duplicates (still some spacing issues)
+                end
+                local tl = taglist[at]
+                local i = locate_node(n,whatsit_code,refximage_code)
+                if i then
+                    attributehash[tl[#tl]] = { imageindex = i.index }
+                end
+                flushresult { tl, { }, 0, 0 } -- has an index, todo: flag empty element
+                last = nil
+                lastpar = nil
+            else
+             -- maybe check for lines: n.subtype = line_code
+                preceding = collectresults(n.list,n,preceding)
+                preceding = false
+            end
+        elseif id == disc_code then
+            collectresults(n.replace,nil)
+            preceding = false
+        elseif id == glue_code then
+            local subtype = n.subtype
+            if subtype == userskip_code then
+                if n.spec.width > threshold then
+                    preceding = true
+                    if result then
+                        if last and #result > 0 and result[#result] ~= " " then
+                            if has_attribute(n,a_tagged) == last then
+                                result[#result+1] = joiner_6
+                                preceding = false
+                            end
+                        end
+                    end
+                end
+--~             elseif subtype == rightskip_code or subtype == parfillskip_code then
+--~                 if result and last and #result > 0 and result[#result] ~= " " then
+--~                     result[#result+1] = joiner_7
+--~                 end
+            end
+        elseif id == kern_code then
+            if n.kern > threshold then
+                preceding = true
+                if result then
+                    if last and #result > 0 and result[#result] ~= " " then
+                        if has_attribute(n,a_tagged) == last then
+                            result[#result+1] = joiner_8
+                            preceding = false
+                        end
+                    end
+                elseif not preceding then
+                    preceding = true
+                end
+            end
+        end
+    end
+    return preceding
+end
+
+function nodes.handlers.export(head)
+    if trace_spaces then
+        joiner_1 = "<S1/>"  joiner_2 = "<S2/>"  joiner_3 = "<S3/>"  joiner_4 = "<S4/>"  joiner_5 = "<S5/>"
+        joiner_6 = "<S6/>"  joiner_7 = "<S7/>"  joiner_8 = "<S8/>"  joiner_9 = "<S9/>"  joiner_0 = "<S0/>"
+    end
+    collectresults(head)
+    -- no flush here, pending page stuff
+    return head, true
+end
diff --git a/tex/context/base/back-exp.mkiv b/tex/context/base/back-exp.mkiv
new file mode 100644
index 000000000..131dfe295
--- /dev/null
+++ b/tex/context/base/back-exp.mkiv
@@ -0,0 +1,103 @@
+%D \module
+%D   [       file=back-exp,
+%D        version=2010.08.22,
+%D          title=\CONTEXT\ Backend Macros,
+%D       subtitle=XML export,
+%D         author=Hans Hagen,
+%D           date=\currentdate,
+%D      copyright=\PRAGMA]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+\writestatus{loading}{ConTeXt Backend Macros / XML export}
+
+\registerctxluafile{back-exp.lua}{}
+
+%D This is an experimental exporter and a logical follow up on tagging. The
+%D exporter assumes a properly tagged document. Some elements get a couple
+%D of attributes becaus eitherwise rendering information would get lost. In
+%D general we assume that when the \XML\ is converted to \HTML\ some stylesheet
+%D is applied anyway.
+
+\unprotect
+
+% we can replace this by a more generic attributeset mechanism where we bind
+% to any element (needed anyway, see userdata thingies)
+
+\definesystemattribute[taggedrows]   [public]
+\definesystemattribute[taggedcolumns][public]
+\definesystemattribute[taggedalign]  [public]
+\definesystemattribute[taggedpar]    [public]
+\definesystemattribute[taggedpacked] [public]
+\definesystemattribute[taggedsymbol] [public]
+\definesystemattribute[taggedinsert] [public]
+
+\def\setelementexporttag
+  {\dotripleargument\dosetelementexporttag}
+
+\def\dosetelementexporttag[#1][#2][#3]%
+  {\ifthirdargument
+     \ctxlua{structures.tags.settagproperty("#1","#2", "#3")}%
+   \else\ifsecondargument
+     \ctxlua{structures.tags.settagproperty("#1","export", "#2")}%
+   \fi\fi}
+
+\newcount\tagparcounter
+
+\let\dotagsetparcounter\relax
+
+\appendtoks
+    \dotagsetparcounter
+\to \everypar
+
+\appendtoks
+    \dotagsetparcounter
+\to \neverypar
+
+\appendtoks
+    \dotagsetparcounter
+\to \everytabulatepar % tricky, maybe this should be neverypar
+
+\appendtoks
+    \def\dotagnoftablecolumns{\attribute\taggedcolumnsattribute\!!counta}%
+    \def\dotagnoftablerows   {\attribute\taggedrowsattribute   \!!countb}%
+\to \everyenableelements
+
+\appendtoks
+    \def\dotagTABLEalign{\attribute\taggedalignattribute\raggedstatus}%
+    \def\dotagTABLEcell {\char\zerocount}%
+\to \everyenableelements
+
+\appendtoks
+    \def\dotagtabulatealign{\attribute\taggedalignattribute\ifcase\tabulatealign\attributeunsetvalue\or\plusthree\or\plusone\or\plustwo\or\attributeunsetvalue\fi}%
+\to \everyenableelements
+
+\appendtoks
+    \def\dotagsetparcounter{\global\advance\tagparcounter\plusone\attribute\taggedparattribute\tagparcounter}%
+\to \everyenableelements
+
+\appendtoks
+    \def\dotagsetitemize{\ctxlua{structures.tags.setitemgroup(\ifconditional\packlistitem true\else false\fi,"\currentitemsymbol")}}%
+\to \everyenableelements
+
+\appendtoks
+    \def\dotagsetdescriptiontag{\ctxlua{structures.tags.setdescriptionid("\currentdescription",\currentdescriptionnumberentry)}}%
+\to \everyenableelements
+
+\appendtoks
+    \def\dotagsetnotesymbol{\ctxlua{structures.tags.setdescriptionid("\currentnote",\currentnotenumber)}}%
+\to \everyenableelements
+
+% The action: \setubackend[export=yes] % or filename
+
+\def\c!export{export}
+
+\appendtoks
+    \doifsomething{\backendparameter\c!export}
+      {\setupstructure[\c!state=\v!start]%
+       \enabledirectives[backend.export=\backendparameter\c!export]}%
+\to \everysetupbackend
+
+\protect \endinput
diff --git a/tex/context/base/cont-new.tex b/tex/context/base/cont-new.tex
index c0591e9bd..6558c664b 100644
--- a/tex/context/base/cont-new.tex
+++ b/tex/context/base/cont-new.tex
@@ -11,7 +11,7 @@
 %C therefore copyrighted by \PRAGMA. See mreadme.pdf for
 %C details.
 
-\newcontextversion{2010.09.13 11:06}
+\newcontextversion{2010.09.14 10:28}
 
 %D This file is loaded at runtime, thereby providing an
 %D excellent place for hacks, patches, extensions and new
diff --git a/tex/context/base/context.mkiv b/tex/context/base/context.mkiv
index 371d363b4..3a285fc9d 100644
--- a/tex/context/base/context.mkiv
+++ b/tex/context/base/context.mkiv
@@ -364,6 +364,8 @@
 \loadmarkfile{grph-epd}
 \loadmarkfile{meta-pdf}
 
+\loadmarkfile{back-exp}
+
 \unprotect
 
 \setupcurrentlanguage[\s!en]
diff --git a/tex/context/base/context.tex b/tex/context/base/context.tex
index 7e5da14e9..887804b75 100644
--- a/tex/context/base/context.tex
+++ b/tex/context/base/context.tex
@@ -20,7 +20,7 @@
 %D your styles an modules.
 
 \edef\contextformat {\jobname}
-\edef\contextversion{2010.09.13 11:06}
+\edef\contextversion{2010.09.14 10:28}
 
 %D For those who want to use this:
 
diff --git a/tex/context/base/font-ott.lua b/tex/context/base/font-ott.lua
index 3c3ecdee0..a5a0df37e 100644
--- a/tex/context/base/font-ott.lua
+++ b/tex/context/base/font-ott.lua
@@ -12,6 +12,7 @@ local is_boolean = string.is_boolean
 
 local allocate = utilities.storage.allocate
 
+fonts          = fonts or { } -- needed for font server
 local fonts    = fonts
 fonts.otf      = fonts.otf or { }
 local otf      = fonts.otf
diff --git a/tex/context/base/l-url.lua b/tex/context/base/l-url.lua
index a161d2265..f8752f8a3 100644
--- a/tex/context/base/l-url.lua
+++ b/tex/context/base/l-url.lua
@@ -66,10 +66,11 @@ end
 
 -- todo: cache them
 
-function url.hashed(str)
+function url.hashed(str) -- not yet ok (/test?test)
     local s = url.split(str)
     local somescheme = s[1] ~= ""
-    if not somescheme then
+    local somequery  = s[4] ~= ""
+    if not somescheme and not somequery then
         return {
             scheme    = "file",
             authority = "",
@@ -92,6 +93,8 @@ function url.hashed(str)
     end
 end
 
+--~ table.print(url.hashed("/test?test"))
+
 function url.hasscheme(str)
     return url.split(str)[1] ~= ""
 end
diff --git a/tex/context/base/mtx-context-listing.tex b/tex/context/base/mtx-context-listing.tex
index d0dbcbba0..0cbd73784 100644
--- a/tex/context/base/mtx-context-listing.tex
+++ b/tex/context/base/mtx-context-listing.tex
@@ -69,6 +69,12 @@
         lfg  = "lua",
     }
 
+    local pattern = document.arguments.pattern
+
+    if pattern then
+        document.files = dir.glob(pattern)
+    end
+
     if #document.files > 0 then
         if document.arguments.sort then
             table.sort(document.files)
@@ -85,10 +91,16 @@
                 end
                 context.page()
                 context.setupfootertexts( -- return true: we need to keep this entry
-                    { function() context.detokenize(file.basename(filename)) return true end },
+                    { function() context.detokenize(pattern and filename or file.basename(filename)) return true end },
                     { function() context.pagenumber() return true end }
                 )
-                context.setuptyping { option = types[pretty] or pretty }
+                if pretty then
+                    if type(pretty) ~= "string" or pretty == "" then
+                        context.setuptyping { option = "color" }
+                    else
+                        context.setuptyping { option = types[pretty] or pretty }
+                    end
+                end
                 context.typefile(filename)
             end
         end
diff --git a/tex/context/base/spac-ver.lua b/tex/context/base/spac-ver.lua
index 0bcad2640..8bd6daa60 100644
--- a/tex/context/base/spac-ver.lua
+++ b/tex/context/base/spac-ver.lua
@@ -631,12 +631,12 @@ local function glue_to_string(glue)
     if spec.stretch_order and spec.stretch_order ~= 0 then
         t[#t+1] = format("plus %s%s",spec.stretch/65536,fillcodes[spec.stretch_order])
     elseif spec.stretch and spec.stretch ~= 0 then
-        t[#t+1] = format("plus %s",aux.strip_zeros(number.topoints(spec.stretch)))
+        t[#t+1] = format("plus %s",utilities.formatters.strip_zeros(number.topoints(spec.stretch)))
     end
     if spec.shrink_order and spec.shrink_order ~= 0 then
         t[#t+1] = format("minus %s%s",spec.shrink/65536,fillcodes[spec.shrink_order])
     elseif spec.shrink and spec.shrink ~= 0 then
-        t[#t+1] = format("minus %s",aux.strip_zeros(number.topoints(spec.shrink)))
+        t[#t+1] = format("minus %s",utilities.formatters.strip_zeros(number.topoints(spec.shrink)))
     end
     return concat(t," ")
 end
@@ -649,9 +649,9 @@ local function nodes_to_string(head)
         if id == penalty_code then
             t[#t+1] = format("%s:%s",ty,current.penalty)
         elseif id == glue_code then
-            t[#t+1] = format("%s:%s",ty,aux.strip_zeros(number.topoints(current.spec.width)))
+            t[#t+1] = format("%s:%s",ty,utilities.formatters.strip_zeros(number.topoints(current.spec.width)))
         elseif id == kern_code then
-            t[#t+1] = format("%s:%s",ty,aux.strip_zeros(number.topoints(current.kern)))
+            t[#t+1] = format("%s:%s",ty,utilities.formatters.strip_zeros(number.topoints(current.kern)))
         else
             t[#t+1] = ty
         end
@@ -731,7 +731,10 @@ local splittopskip_code          = skipcodes.splittopskip
 local free_glue_node = free_node
 local discard, largest, force, penalty, add, disable, nowhite, goback, together = 0, 1, 2, 3, 4, 5, 6, 7, 8
 
---~ local function free_glue_node(n) free_node(n.spec) free_node(n) end
+--~ local function free_glue_node(n)
+--~     free_node(n.spec)
+--~     free_node(n)
+--~ end
 
 function vspacing.snapbox(n,how)
     local sv = snapmethods[how]
diff --git a/tex/context/base/strc-tag.lua b/tex/context/base/strc-tag.lua
index 495da37c0..424f4f897 100644
--- a/tex/context/base/strc-tag.lua
+++ b/tex/context/base/strc-tag.lua
@@ -149,9 +149,10 @@ local userdata = { }
 tags.userdata = userdata
 
 function tags.start(tag,specification)
-    local label = specification.label
-    local detail = specification.detail
-    local user = specification.userdata
+    local label, detail, user
+    if specification then
+        label, detail, user = specification.label, specification.detail, specification.userdata
+    end
     if not enabled then
         codeinjections.enabletags()
         enabled = true
diff --git a/tex/context/test/pdf-x4p.mkiv b/tex/context/test/pdf-x4p.mkiv
index 422d0601a..9ec8897f8 100644
--- a/tex/context/test/pdf-x4p.mkiv
+++ b/tex/context/test/pdf-x4p.mkiv
@@ -7,22 +7,4 @@
    intent=ISOcoated_v2_eci.icc,
    profile=sRGB.icc] % test for default colorspace
 
-\showlayoutcomponents \nopdfcompression
-
-\setupinteraction
-  [title=TITLE,
-   subtitle=SUBTITLE,
-   author=AUTHOR,
-   keyword={{KEYWORD1, KEYWORD2}, KEYWORD3}]
-
-\definecolor[cmykblack][k=1]
-\definecolor[transtest][r=1,g=1,a=1,t=.5]
-
-\startTEXpage
-    \blackrule[width=1cm,height=1cm,color=cyan]
-    \blackrule[width=1cm,height=1cm,color=magenta]
-    \blackrule[width=1cm,height=1cm,color=yellow]
-    \blackrule[width=1cm,height=1cm,color=cmykblack]
-    \blackrule[width=1cm,height=1cm,color=transtest]\hskip-.5cm
-    \blackrule[width=1cm,height=1cm,color=transtest]
-\stopTEXpage
+\input pdf-x-common.mkiv
diff --git a/tex/generic/context/luatex-fonts-merged.lua b/tex/generic/context/luatex-fonts-merged.lua
index 307bb0c5e..9da05c36c 100644
--- a/tex/generic/context/luatex-fonts-merged.lua
+++ b/tex/generic/context/luatex-fonts-merged.lua
@@ -1,6 +1,6 @@
 -- merged file : luatex-fonts-merged.lua
 -- parent file : luatex-fonts.lua
--- merge date  : 09/13/10 11:06:52
+-- merge date  : 09/14/10 10:28:49
 
 do -- begin closure to overcome local limits and interference
 
@@ -4112,6 +4112,7 @@ local is_boolean = string.is_boolean
 
 local allocate = utilities.storage.allocate
 
+fonts          = fonts or { } -- needed for font server
 local fonts    = fonts
 fonts.otf      = fonts.otf or { }
 local otf      = fonts.otf