beta 2010.03.09 10:39

15 files changed, 1193 insertions, 424 deletions

diff --git a/scripts/context/lua/luatools.lua b/scripts/context/lua/luatools.lua
index f9b855f74..1a579eb69 100644
--- a/scripts/context/lua/luatools.lua
+++ b/scripts/context/lua/luatools.lua
@@ -338,6 +338,8 @@ if not modules then modules = { } end modules ['l-lpeg'] = {
 
 lpeg = require("lpeg")
 
+lpeg.patterns = lpeg.patterns or { } -- so that we can share
+
 local P, R, S, Ct, C, Cs, Cc = lpeg.P, lpeg.R, lpeg.S, lpeg.Ct, lpeg.C, lpeg.Cs, lpeg.Cc
 local match = lpeg.match
 
@@ -488,11 +490,9 @@ end
 --~
 --~ local decode_pattern = lpeg.Ct(utf8^0) * -1
 
-
 local cont = R("\128\191")   -- continuation byte
 
-lpeg.utf8 = R("\0\127") + R("\194\223") * cont + R("\224\239") * cont * cont + R("\240\244") * cont * cont * cont
-
+lpeg.patterns.utf8 = R("\0\127") + R("\194\223") * cont + R("\224\239") * cont * cont + R("\240\244") * cont * cont * cont
 
 
 end -- of closure
@@ -1868,6 +1868,7 @@ elseif os.type == "windows" then
 elseif name == "linux" then
 
     function os.resolvers.platform(t,k)
+        -- we sometims have HOSTTYPE set so let's check that first
         local platform, architecture = "", os.getenv("HOSTTYPE") or os.resultof("uname -m") or ""
         if find(architecture,"x86_64") then
             platform = "linux-64"
@@ -1881,17 +1882,28 @@ elseif name == "linux" then
         return platform
     end
 
-elseif name == "macosx" then -- a rather inconsistent mess
+elseif name == "macosx" then
+
+    --[[
+        Identifying the architecture of OSX is quite a mess and this
+        is the best we can come up with. For some reason $HOSTTYPE is
+        a kind of pseudo environment variable, not known to the current
+        environment. And yes, uname cannot be trusted either, so there
+        is a change that you end up with a 32 bit run on a 64 bit system.
+        Also, some proper 64 bit intel macs are too cheap (low-end) and
+        therefore not permitted to run the 64 bit kernel.
+      ]]--
 
     function os.resolvers.platform(t,k)
-        local platform, architecture = "", os.resultof("uname -m") or ""
+     -- local platform, architecture = "", os.getenv("HOSTTYPE") or ""
+     -- if architecture == "" then
+     --     architecture = os.resultof("echo $HOSTTYPE") or ""
+     -- end
+        local platform, architecture = "", os.resultof("echo $HOSTTYPE") or ""
         if architecture == "" then
-            architecture = os.getenv("HOSTTYPE") or ""
-        end
-        if architecture == "" then
-            architecture = os.resultof("echo $HOSTTYPE") or ""
-        end
-        if find(architecture,"i386") then
+         -- print("\nI have no clue what kind of OSX you're running so let's assume an 32 bit intel.\n")
+            platform = "osx-intel"
+        elseif find(architecture,"i386") then
             platform = "osx-intel"
         elseif find(architecture,"x86_64") then
             platform = "osx-64"
@@ -1931,6 +1943,21 @@ elseif name == "freebsd" then
         return platform
     end
 
+elseif name == "kfreebsd" then
+
+    function os.resolvers.platform(t,k)
+        -- we sometims have HOSTTYPE set so let's check that first
+        local platform, architecture = "", os.getenv("HOSTTYPE") or os.resultof("uname -m") or ""
+        if find(architecture,"x86_64") then
+            platform = "kfreebsd-64"
+        else
+            platform = "kfreebsd-i386"
+        end
+        os.setenv("MTX_PLATFORM",platform)
+        os.platform = platform
+        return platform
+    end
+
 else
 
     -- platform = "linux"
@@ -1967,6 +1994,21 @@ function os.uuid()
     )
 end
 
+local d
+
+function os.timezone(delta)
+    d = d or tonumber(tonumber(os.date("%H")-os.date("!%H")))
+    if delta then
+        if d > 0 then
+            return format("+%02i:00",d)
+        else
+            return format("-%02i:00",-d)
+        end
+    else
+        return 1
+    end
+end
+
 
 end -- of closure
 
@@ -1985,7 +2027,7 @@ if not modules then modules = { } end modules ['l-file'] = {
 file = file or { }
 
 local concat = table.concat
-local find, gmatch, match, gsub, sub = string.find, string.gmatch, string.match, string.gsub, string.sub
+local find, gmatch, match, gsub, sub, char = string.find, string.gmatch, string.match, string.gsub, string.sub, string.char
 local lpegmatch = lpeg.match
 
 function file.removesuffix(filename)
@@ -2022,14 +2064,33 @@ end
 
 file.suffix = file.extname
 
---~ print(file.join("x/","/y"))
---~ print(file.join("http://","/y"))
---~ print(file.join("http://a","/y"))
---~ print(file.join("http:///a","/y"))
---~ print(file.join("//nas-1","/y"))
+--~ function file.join(...)
+--~     local pth = concat({...},"/")
+--~     pth = gsub(pth,"\\","/")
+--~     local a, b = match(pth,"^(.*://)(.*)$")
+--~     if a and b then
+--~         return a .. gsub(b,"//+","/")
+--~     end
+--~     a, b = match(pth,"^(//)(.*)$")
+--~     if a and b then
+--~         return a .. gsub(b,"//+","/")
+--~     end
+--~     return (gsub(pth,"//+","/"))
+--~ end
+
+local trick_1 = char(1)
+local trick_2 = "^" .. trick_1 .. "/+"
 
 function file.join(...)
-    local pth = concat({...},"/")
+    local lst = { ... }
+    local a, b = lst[1], lst[2]
+    if a == "" then
+        lst[1] = trick_1
+    elseif b and find(a,"^/+$") and find(b,"^/") then
+        lst[1] = ""
+        lst[2] = gsub(b,"^/+","")
+    end
+    local pth = concat(lst,"/")
     pth = gsub(pth,"\\","/")
     local a, b = match(pth,"^(.*://)(.*)$")
     if a and b then
@@ -2039,9 +2100,20 @@ function file.join(...)
     if a and b then
         return a .. gsub(b,"//+","/")
     end
+    pth = gsub(pth,trick_2,"")
     return (gsub(pth,"//+","/"))
 end
 
+--~ print(file.join("//","/y"))
+--~ print(file.join("/","/y"))
+--~ print(file.join("","/y"))
+--~ print(file.join("/x/","/y"))
+--~ print(file.join("x/","/y"))
+--~ print(file.join("http://","/y"))
+--~ print(file.join("http://a","/y"))
+--~ print(file.join("http:///a","/y"))
+--~ print(file.join("//nas-1","/y"))
+
 function file.iswritable(name)
     local a = lfs.attributes(name) or lfs.attributes(file.dirname(name,"."))
     return a and sub(a.permissions,2,2) == "w"
@@ -2080,16 +2152,22 @@ function file.join_path(tab)
     return concat(tab,io.pathseparator) -- can have trailing //
 end
 
+-- we can hash them weakly
+
 function file.collapse_path(str)
-    str = gsub(str,"/%./","/")
-    local n, m = 1, 1
-    while n > 0 or m > 0 do
-        str, n = gsub(str,"[^/%.]+/%.%.$","")
-        str, m = gsub(str,"[^/%.]+/%.%./","")
-    end
-    str = gsub(str,"([^/])/$","%1")
-    str = gsub(str,"^%./","")
-    str = gsub(str,"/%.$","")
+    str = gsub(str,"\\","/")
+    if find(str,"/") then
+        str = gsub(str,"^%./",(gsub(lfs.currentdir(),"\\","/")) .. "/") -- ./xx in qualified
+        str = gsub(str,"/%./","/")
+        local n, m = 1, 1
+        while n > 0 or m > 0 do
+            str, n = gsub(str,"[^/%.]+/%.%.$","")
+            str, m = gsub(str,"[^/%.]+/%.%./","")
+        end
+        str = gsub(str,"([^/])/$","%1")
+    --  str = gsub(str,"^%./","") -- ./xx in qualified
+        str = gsub(str,"/%.$","")
+    end
     if str == "" then str = "." end
     return str
 end
@@ -2391,7 +2469,7 @@ function url.hashed(str)
 end
 
 function url.hasscheme(str)
-    return not url.split(str).nosheme
+    return url.split(str)[1] ~= ""
 end
 
 function url.addscheme(str,scheme)
@@ -2788,7 +2866,7 @@ else
 --~         print(dir.mkdirs("///a/b/c"))
 --~         print(dir.mkdirs("a/bbb//ccc/"))
 
-    function dir.expand_name(str)
+    function dir.expand_name(str) -- will be merged with cleanpath and collapsepath
         if not find(str,"^/") then
             str = lfs.currentdir() .. "/" .. str
         end
@@ -3503,6 +3581,8 @@ local stripper = lpeg.Cs((number + 1)^0)
 --~ lpegmatch(stripper,str)
 --~ print(#str, os.clock()-ts, lpegmatch(stripper,sample))
 
+lpeg.patterns.strip_zeros = stripper
+
 function aux.strip_zeros(str)
     return lpegmatch(stripper,str)
 end
@@ -3789,14 +3869,14 @@ end
 function setters.enable(t,what)
     local e = t.enable
     t.enable, t.done = enable, { }
-    enable(t,string.simpleesc(what))
+    enable(t,string.simpleesc(tostring(what)))
     t.enable, t.done = e, { }
 end
 
 function setters.disable(t,what)
     local e = t.disable
     t.disable, t.done = disable, { }
-    disable(t,string.simpleesc(what))
+    disable(t,string.simpleesc(tostring(what)))
     t.disable, t.done = e, { }
 end
 
@@ -3847,13 +3927,15 @@ function setters.new(name)
     return t
 end
 
-trackers   = setters.new("trackers")
-directives = setters.new("directives")
+trackers    = setters.new("trackers")
+directives  = setters.new("directives")
+experiments = setters.new("experiments")
 
 -- nice trick: we overload two of the directives related functions with variants that
 -- do tracing (itself using a tracker) .. proof of concept
 
-local trace_directives = false local trace_directives = false  trackers.register("system.directives", function(v) trace_directives = v end)
+local trace_directives  = false local trace_directives  = false  trackers.register("system.directives",  function(v) trace_directives  = v end)
+local trace_experiments = false local trace_experiments = false  trackers.register("system.experiments", function(v) trace_experiments = v end)
 
 local e = directives.enable
 local d = directives.disable
@@ -3868,6 +3950,26 @@ function directives.disable(...)
     d(...)
 end
 
+local e = experiments.enable
+local d = experiments.disable
+
+function experiments.enable(...)
+    commands.writestatus("experiments","enabling: %s",concat({...}," "))
+    e(...)
+end
+
+function experiments.disable(...)
+    commands.writestatus("experiments","disabling: %s",concat({...}," "))
+    d(...)
+end
+
+-- a useful example
+
+directives.register("system.nostatistics", function(v)
+    statistics.enable = not v
+end)
+
+
 
 end -- of closure
 
@@ -4181,6 +4283,14 @@ function statistics.hastimer(instance)
     return instance and instance.starttime
 end
 
+function statistics.resettiming(instance)
+    if not instance then
+        notimer = { timing = 0, loadtime = 0 }
+    else
+        instance.timing, instance.loadtime = 0, 0
+    end
+end
+
 function statistics.starttiming(instance)
     if not instance then
         notimer = { }
@@ -4240,6 +4350,12 @@ function statistics.elapsedindeed(instance)
     return t > statistics.threshold
 end
 
+function statistics.elapsedseconds(instance,rest) -- returns nil if 0 seconds
+    if statistics.elapsedindeed(instance) then
+        return format("%s seconds %s", statistics.elapsedtime(instance),rest or "")
+    end
+end
+
 -- general function
 
 function statistics.register(tag,fnc)
@@ -4318,6 +4434,23 @@ function statistics.timed(action,report)
     report("total runtime: %s",statistics.elapsedtime(timer))
 end
 
+-- where, not really the best spot for this:
+
+commands = commands or { }
+
+local timer
+
+function commands.resettimer()
+    statistics.resettiming(timer)
+    statistics.starttiming(timer)
+end
+
+function commands.elapsedtime()
+    statistics.stoptiming(timer)
+    tex.sprint(statistics.elapsedtime(timer))
+end
+
+commands.resettimer()
 
 
 end -- of closure
@@ -4755,8 +4888,8 @@ suffixes['lua'] = { 'lua', 'luc', 'tma', 'tmc' }
 
 alternatives['map files']            = 'map'
 alternatives['enc files']            = 'enc'
-alternatives['cid files']            = 'cid'
-alternatives['fea files']            = 'fea'
+alternatives['cid maps']             = 'cid' -- great, why no cid files
+alternatives['font feature files']   = 'fea' -- and fea files here
 alternatives['opentype fonts']       = 'otf'
 alternatives['truetype fonts']       = 'ttf'
 alternatives['truetype collections'] = 'ttc'
@@ -4899,8 +5032,10 @@ local function check_configuration() -- not yet ok, no time for debugging now
         -- bad luck
     end
     fix("LUAINPUTS"   , ".;$TEXINPUTS;$TEXMFSCRIPTS") -- no progname, hm
-    fix("FONTFEATURES", ".;$TEXMF/fonts/fea//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
-    fix("FONTCIDMAPS" , ".;$TEXMF/fonts/cid//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    -- this will go away some day
+    fix("FONTFEATURES", ".;$TEXMF/fonts/{data,fea}//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    fix("FONTCIDMAPS" , ".;$TEXMF/fonts/{data,cid}//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    --
     fix("LUATEXLIBS"  , ".;$TEXMF/luatex/lua//")
 end
 
@@ -5290,7 +5425,7 @@ function resolvers.load_cnf()
     else
         instance.rootpath = instance.cnffiles[1]
         for k,fname in ipairs(instance.cnffiles) do
-            instance.cnffiles[k] = file.collapse_path(gsub(fname,"\\",'/'))
+            instance.cnffiles[k] = file.collapse_path(fname)
         end
         for i=1,3 do
             instance.rootpath = file.dirname(instance.rootpath)
@@ -5319,7 +5454,7 @@ function resolvers.load_lua()
     else
         instance.rootpath = instance.luafiles[1]
         for k,fname in ipairs(instance.luafiles) do
-            instance.luafiles[k] = file.collapse_path(gsub(fname,"\\",'/'))
+            instance.luafiles[k] = file.collapse_path(fname)
         end
         for i=1,3 do
             instance.rootpath = file.dirname(instance.rootpath)
@@ -5444,7 +5579,7 @@ local weird = lpeg.P(".")^1 + lpeg.anywhere(lpeg.S("~`!#$%^&*()={}[]:;\"\'||<>,?
 
 --~ local l_forbidden = lpeg.S("~`!#$%^&*()={}[]:;\"\'||\\/<>,?\n\r\t")
 --~ local l_confusing = lpeg.P(" ")
---~ local l_character = lpeg.utf8
+--~ local l_character = lpeg.patterns.utf8
 --~ local l_dangerous = lpeg.P(".")
 
 --~ local l_normal = (l_character - l_forbidden - l_confusing - l_dangerous) * (l_character - l_forbidden - l_confusing^2)^0 * lpeg.P(-1)
@@ -6184,8 +6319,7 @@ end
 local function collect_instance_files(filename,collected) -- todo : plugin (scanners, checkers etc)
     local result = collected or { }
     local stamp  = nil
-    filename = file.collapse_path(filename)  -- elsewhere
-    filename = file.collapse_path(gsub(filename,"\\","/")) -- elsewhere
+    filename = file.collapse_path(filename)
     -- speed up / beware: format problem
     if instance.remember then
         stamp = filename .. "--" .. instance.engine .. "--" .. instance.progname .. "--" .. instance.format
@@ -6666,12 +6800,13 @@ end
 function table.sequenced(t,sep) -- temp here
     local s = { }
     for k, v in pairs(t) do -- pairs?
-        s[#s+1] = k .. "=" .. v
+        s[#s+1] = k .. "=" .. tostring(v)
     end
     return concat(s, sep or " | ")
 end
 
 function resolvers.methodhandler(what, filename, filetype) -- ...
+    filename = file.collapse_path(filename)
     local specification = (type(filename) == "string" and resolvers.splitmethod(filename)) or filename -- no or { }, let it bomb
     local scheme = specification.scheme
     if resolvers[what][scheme] then
diff --git a/scripts/context/lua/mtx-update.lua b/scripts/context/lua/mtx-update.lua
index 09d3106b6..4f04b2245 100644
--- a/scripts/context/lua/mtx-update.lua
+++ b/scripts/context/lua/mtx-update.lua
@@ -383,7 +383,13 @@ function scripts.update.synchronize()
     end
     if not force then
         logs.report("update", "use --force to really update files")
+    else
+        -- update filename database for pdftex/xetex
+        scripts.update.run("mktexlsr")
+        -- update filename database for luatex
+        scripts.update.run("luatools --generate")
     end
+
     logs.report("update","done")
 end
 
@@ -408,10 +414,6 @@ function scripts.update.make()
     local formats = states.get('formats')
 
     resolvers.load_tree(texroot)
-    -- update filename database for pdftex/xetex
-    scripts.update.run("mktexlsr")
-    -- update filename database for luatex
-    scripts.update.run("luatools --generate")
     local askedformats = formats
     local texformats = table.tohash(scripts.update.texformats)
     local mpformats = table.tohash(scripts.update.mpformats)
diff --git a/scripts/context/lua/mtxrun.lua b/scripts/context/lua/mtxrun.lua
index 8a2d7a123..ef7eda9b0 100644
--- a/scripts/context/lua/mtxrun.lua
+++ b/scripts/context/lua/mtxrun.lua
@@ -347,6 +347,8 @@ if not modules then modules = { } end modules ['l-lpeg'] = {
 
 lpeg = require("lpeg")
 
+lpeg.patterns = lpeg.patterns or { } -- so that we can share
+
 local P, R, S, Ct, C, Cs, Cc = lpeg.P, lpeg.R, lpeg.S, lpeg.Ct, lpeg.C, lpeg.Cs, lpeg.Cc
 local match = lpeg.match
 
@@ -497,11 +499,9 @@ end
 --~
 --~ local decode_pattern = lpeg.Ct(utf8^0) * -1
 
-
 local cont = R("\128\191")   -- continuation byte
 
-lpeg.utf8 = R("\0\127") + R("\194\223") * cont + R("\224\239") * cont * cont + R("\240\244") * cont * cont * cont
-
+lpeg.patterns.utf8 = R("\0\127") + R("\194\223") * cont + R("\224\239") * cont * cont + R("\240\244") * cont * cont * cont
 
 
 end -- of closure
@@ -1952,6 +1952,21 @@ elseif name == "freebsd" then
         return platform
     end
 
+elseif name == "kfreebsd" then
+
+    function os.resolvers.platform(t,k)
+        -- we sometims have HOSTTYPE set so let's check that first
+        local platform, architecture = "", os.getenv("HOSTTYPE") or os.resultof("uname -m") or ""
+        if find(architecture,"x86_64") then
+            platform = "kfreebsd-64"
+        else
+            platform = "kfreebsd-i386"
+        end
+        os.setenv("MTX_PLATFORM",platform)
+        os.platform = platform
+        return platform
+    end
+
 else
 
     -- platform = "linux"
@@ -2021,7 +2036,7 @@ if not modules then modules = { } end modules ['l-file'] = {
 file = file or { }
 
 local concat = table.concat
-local find, gmatch, match, gsub, sub = string.find, string.gmatch, string.match, string.gsub, string.sub
+local find, gmatch, match, gsub, sub, char = string.find, string.gmatch, string.match, string.gsub, string.sub, string.char
 local lpegmatch = lpeg.match
 
 function file.removesuffix(filename)
@@ -2058,14 +2073,33 @@ end
 
 file.suffix = file.extname
 
---~ print(file.join("x/","/y"))
---~ print(file.join("http://","/y"))
---~ print(file.join("http://a","/y"))
---~ print(file.join("http:///a","/y"))
---~ print(file.join("//nas-1","/y"))
+--~ function file.join(...)
+--~     local pth = concat({...},"/")
+--~     pth = gsub(pth,"\\","/")
+--~     local a, b = match(pth,"^(.*://)(.*)$")
+--~     if a and b then
+--~         return a .. gsub(b,"//+","/")
+--~     end
+--~     a, b = match(pth,"^(//)(.*)$")
+--~     if a and b then
+--~         return a .. gsub(b,"//+","/")
+--~     end
+--~     return (gsub(pth,"//+","/"))
+--~ end
+
+local trick_1 = char(1)
+local trick_2 = "^" .. trick_1 .. "/+"
 
 function file.join(...)
-    local pth = concat({...},"/")
+    local lst = { ... }
+    local a, b = lst[1], lst[2]
+    if a == "" then
+        lst[1] = trick_1
+    elseif b and find(a,"^/+$") and find(b,"^/") then
+        lst[1] = ""
+        lst[2] = gsub(b,"^/+","")
+    end
+    local pth = concat(lst,"/")
     pth = gsub(pth,"\\","/")
     local a, b = match(pth,"^(.*://)(.*)$")
     if a and b then
@@ -2075,9 +2109,20 @@ function file.join(...)
     if a and b then
         return a .. gsub(b,"//+","/")
     end
+    pth = gsub(pth,trick_2,"")
     return (gsub(pth,"//+","/"))
 end
 
+--~ print(file.join("//","/y"))
+--~ print(file.join("/","/y"))
+--~ print(file.join("","/y"))
+--~ print(file.join("/x/","/y"))
+--~ print(file.join("x/","/y"))
+--~ print(file.join("http://","/y"))
+--~ print(file.join("http://a","/y"))
+--~ print(file.join("http:///a","/y"))
+--~ print(file.join("//nas-1","/y"))
+
 function file.iswritable(name)
     local a = lfs.attributes(name) or lfs.attributes(file.dirname(name,"."))
     return a and sub(a.permissions,2,2) == "w"
@@ -2116,16 +2161,22 @@ function file.join_path(tab)
     return concat(tab,io.pathseparator) -- can have trailing //
 end
 
+-- we can hash them weakly
+
 function file.collapse_path(str)
-    str = gsub(str,"/%./","/")
-    local n, m = 1, 1
-    while n > 0 or m > 0 do
-        str, n = gsub(str,"[^/%.]+/%.%.$","")
-        str, m = gsub(str,"[^/%.]+/%.%./","")
-    end
-    str = gsub(str,"([^/])/$","%1")
-    str = gsub(str,"^%./","")
-    str = gsub(str,"/%.$","")
+    str = gsub(str,"\\","/")
+    if find(str,"/") then
+        str = gsub(str,"^%./",(gsub(lfs.currentdir(),"\\","/")) .. "/") -- ./xx in qualified
+        str = gsub(str,"/%./","/")
+        local n, m = 1, 1
+        while n > 0 or m > 0 do
+            str, n = gsub(str,"[^/%.]+/%.%.$","")
+            str, m = gsub(str,"[^/%.]+/%.%./","")
+        end
+        str = gsub(str,"([^/])/$","%1")
+    --  str = gsub(str,"^%./","") -- ./xx in qualified
+        str = gsub(str,"/%.$","")
+    end
     if str == "" then str = "." end
     return str
 end
@@ -2824,7 +2875,7 @@ else
 --~         print(dir.mkdirs("///a/b/c"))
 --~         print(dir.mkdirs("a/bbb//ccc/"))
 
-    function dir.expand_name(str)
+    function dir.expand_name(str) -- will be merged with cleanpath and collapsepath
         if not find(str,"^/") then
             str = lfs.currentdir() .. "/" .. str
         end
@@ -3340,6 +3391,8 @@ local stripper = lpeg.Cs((number + 1)^0)
 --~ lpegmatch(stripper,str)
 --~ print(#str, os.clock()-ts, lpegmatch(stripper,sample))
 
+lpeg.patterns.strip_zeros = stripper
+
 function aux.strip_zeros(str)
     return lpegmatch(stripper,str)
 end
@@ -3626,14 +3679,14 @@ end
 function setters.enable(t,what)
     local e = t.enable
     t.enable, t.done = enable, { }
-    enable(t,string.simpleesc(what))
+    enable(t,string.simpleesc(tostring(what)))
     t.enable, t.done = e, { }
 end
 
 function setters.disable(t,what)
     local e = t.disable
     t.disable, t.done = disable, { }
-    disable(t,string.simpleesc(what))
+    disable(t,string.simpleesc(tostring(what)))
     t.disable, t.done = e, { }
 end
 
@@ -3720,6 +3773,13 @@ function experiments.disable(...)
     d(...)
 end
 
+-- a useful example
+
+directives.register("system.nostatistics", function(v)
+    statistics.enable = not v
+end)
+
+
 
 end -- of closure
 
@@ -3995,9 +4055,9 @@ local function attribute_specification_error(str)
     return str
 end
 
-function xml.unknown_dec_entity_format(str) return format("&%s;",  str) end
+function xml.unknown_dec_entity_format(str) return (str == "" and "&error;") or format("&%s;",str) end
 function xml.unknown_hex_entity_format(str) return format("&#x%s;",str) end
-function xml.unknown_any_entity_format(str) return format("&%s;",  str) end
+function xml.unknown_any_entity_format(str) return format("&#x%s;",str) end
 
 local function handle_hex_entity(str)
     local h = hcache[str]
@@ -4111,7 +4171,11 @@ local function handle_any_entity(str)
                     if trace_entities then
                         logs.report("xml","keeping entity &%s;",str)
                     end
-                    a = "&" .. str .. ";"
+                    if str == "" then
+                        a = "&error;"
+                    else
+                        a = "&" .. str .. ";"
+                    end
                 end
             end
             acache[str] = a
@@ -4132,6 +4196,9 @@ local function handle_any_entity(str)
             if a then
                 -- one of the predefined
                 acache[str] = a
+            elseif str == "" then
+                a = "&error;"
+                acache[str] = a
             else
                 a = "&" .. str .. ";"
                 acache[str] = a
@@ -4460,7 +4527,7 @@ function xml.checkbom(root) -- can be made faster
         local dt, found = root.dt, false
         for k=1,#dt do
             local v = dt[k]
-            if type(v) == "table" and v.special and v.tg == "@pi" and find(v.dt,"xml.*version=") then
+            if type(v) == "table" and v.special and v.tg == "@pi@" and find(v.dt[1],"xml.*version=") then
                 found = true
                 break
             end
@@ -4842,6 +4909,8 @@ function xml.assign(dt,k,root)
     end
 end
 
+-- the following helpers may move
+
 --[[ldx--
 <p>The next helper assigns a tree (or string). Usage:</p>
 <typing>
@@ -4860,6 +4929,22 @@ function xml.tocdata(e,wrapper)
     e.dt = { t }
 end
 
+function xml.makestandalone(root)
+    if root.ri then
+        local dt = root.dt
+        for k=1,#dt do
+            local v = dt[k]
+            if type(v) == "table" and v.special and v.tg == "@pi@" then
+                local txt = v.dt[1]
+                if find(txt,"xml.*version=") then
+                    v.dt[1] = txt .. " standalone='yes'"
+                    break
+                end
+            end
+        end
+    end
+end
+
 
 end -- of closure
 
@@ -5476,8 +5561,13 @@ local register_initial_child           = { kind = "axis", axis = "initial-child"
 
 local register_all_nodes               = { kind = "nodes", nodetest = true, nodes = { true, false, false } }
 
+local skip = { }
+
 local function errorrunner_e(str,cnv)
-    logs.report("lpath","error in expression: %s => %s",str,cnv)
+    if not skip[str] then
+        logs.report("lpath","error in expression: %s => %s",str,cnv)
+        skip[str] = cnv or str
+    end
     return false
 end
 local function errorrunner_f(str,arg)
@@ -7287,6 +7377,14 @@ function statistics.hastimer(instance)
     return instance and instance.starttime
 end
 
+function statistics.resettiming(instance)
+    if not instance then
+        notimer = { timing = 0, loadtime = 0 }
+    else
+        instance.timing, instance.loadtime = 0, 0
+    end
+end
+
 function statistics.starttiming(instance)
     if not instance then
         notimer = { }
@@ -7346,6 +7444,12 @@ function statistics.elapsedindeed(instance)
     return t > statistics.threshold
 end
 
+function statistics.elapsedseconds(instance,rest) -- returns nil if 0 seconds
+    if statistics.elapsedindeed(instance) then
+        return format("%s seconds %s", statistics.elapsedtime(instance),rest or "")
+    end
+end
+
 -- general function
 
 function statistics.register(tag,fnc)
@@ -7424,6 +7528,23 @@ function statistics.timed(action,report)
     report("total runtime: %s",statistics.elapsedtime(timer))
 end
 
+-- where, not really the best spot for this:
+
+commands = commands or { }
+
+local timer
+
+function commands.resettimer()
+    statistics.resettiming(timer)
+    statistics.starttiming(timer)
+end
+
+function commands.elapsedtime()
+    statistics.stoptiming(timer)
+    tex.sprint(statistics.elapsedtime(timer))
+end
+
+commands.resettimer()
 
 
 end -- of closure
@@ -7861,8 +7982,8 @@ suffixes['lua'] = { 'lua', 'luc', 'tma', 'tmc' }
 
 alternatives['map files']            = 'map'
 alternatives['enc files']            = 'enc'
-alternatives['cid files']            = 'cid'
-alternatives['fea files']            = 'fea'
+alternatives['cid maps']             = 'cid' -- great, why no cid files
+alternatives['font feature files']   = 'fea' -- and fea files here
 alternatives['opentype fonts']       = 'otf'
 alternatives['truetype fonts']       = 'ttf'
 alternatives['truetype collections'] = 'ttc'
@@ -8005,8 +8126,10 @@ local function check_configuration() -- not yet ok, no time for debugging now
         -- bad luck
     end
     fix("LUAINPUTS"   , ".;$TEXINPUTS;$TEXMFSCRIPTS") -- no progname, hm
-    fix("FONTFEATURES", ".;$TEXMF/fonts/fea//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
-    fix("FONTCIDMAPS" , ".;$TEXMF/fonts/cid//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    -- this will go away some day
+    fix("FONTFEATURES", ".;$TEXMF/fonts/{data,fea}//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    fix("FONTCIDMAPS" , ".;$TEXMF/fonts/{data,cid}//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    --
     fix("LUATEXLIBS"  , ".;$TEXMF/luatex/lua//")
 end
 
@@ -8396,7 +8519,7 @@ function resolvers.load_cnf()
     else
         instance.rootpath = instance.cnffiles[1]
         for k,fname in ipairs(instance.cnffiles) do
-            instance.cnffiles[k] = file.collapse_path(gsub(fname,"\\",'/'))
+            instance.cnffiles[k] = file.collapse_path(fname)
         end
         for i=1,3 do
             instance.rootpath = file.dirname(instance.rootpath)
@@ -8425,7 +8548,7 @@ function resolvers.load_lua()
     else
         instance.rootpath = instance.luafiles[1]
         for k,fname in ipairs(instance.luafiles) do
-            instance.luafiles[k] = file.collapse_path(gsub(fname,"\\",'/'))
+            instance.luafiles[k] = file.collapse_path(fname)
         end
         for i=1,3 do
             instance.rootpath = file.dirname(instance.rootpath)
@@ -8550,7 +8673,7 @@ local weird = lpeg.P(".")^1 + lpeg.anywhere(lpeg.S("~`!#$%^&*()={}[]:;\"\'||<>,?
 
 --~ local l_forbidden = lpeg.S("~`!#$%^&*()={}[]:;\"\'||\\/<>,?\n\r\t")
 --~ local l_confusing = lpeg.P(" ")
---~ local l_character = lpeg.utf8
+--~ local l_character = lpeg.patterns.utf8
 --~ local l_dangerous = lpeg.P(".")
 
 --~ local l_normal = (l_character - l_forbidden - l_confusing - l_dangerous) * (l_character - l_forbidden - l_confusing^2)^0 * lpeg.P(-1)
@@ -9290,8 +9413,7 @@ end
 local function collect_instance_files(filename,collected) -- todo : plugin (scanners, checkers etc)
     local result = collected or { }
     local stamp  = nil
-    filename = file.collapse_path(filename)  -- elsewhere
-    filename = file.collapse_path(gsub(filename,"\\","/")) -- elsewhere
+    filename = file.collapse_path(filename)
     -- speed up / beware: format problem
     if instance.remember then
         stamp = filename .. "--" .. instance.engine .. "--" .. instance.progname .. "--" .. instance.format
@@ -9772,12 +9894,13 @@ end
 function table.sequenced(t,sep) -- temp here
     local s = { }
     for k, v in pairs(t) do -- pairs?
-        s[#s+1] = k .. "=" .. v
+        s[#s+1] = k .. "=" .. tostring(v)
     end
     return concat(s, sep or " | ")
 end
 
 function resolvers.methodhandler(what, filename, filetype) -- ...
+    filename = file.collapse_path(filename)
     local specification = (type(filename) == "string" and resolvers.splitmethod(filename)) or filename -- no or { }, let it bomb
     local scheme = specification.scheme
     if resolvers[what][scheme] then
diff --git a/scripts/context/stubs/mswin/context.exe b/scripts/context/stubs/mswin/context.exe
index 9a67fc133..2d45f2749 100755
--- a/scripts/context/stubs/mswin/context.exe
+++ b/scripts/context/stubs/mswin/context.exe
diff --git a/scripts/context/stubs/mswin/luatools.exe b/scripts/context/stubs/mswin/luatools.exe
index 9a67fc133..2d45f2749 100755
--- a/scripts/context/stubs/mswin/luatools.exe
+++ b/scripts/context/stubs/mswin/luatools.exe
diff --git a/scripts/context/stubs/mswin/luatools.lua b/scripts/context/stubs/mswin/luatools.lua
index f9b855f74..1a579eb69 100644
--- a/scripts/context/stubs/mswin/luatools.lua
+++ b/scripts/context/stubs/mswin/luatools.lua
@@ -338,6 +338,8 @@ if not modules then modules = { } end modules ['l-lpeg'] = {
 
 lpeg = require("lpeg")
 
+lpeg.patterns = lpeg.patterns or { } -- so that we can share
+
 local P, R, S, Ct, C, Cs, Cc = lpeg.P, lpeg.R, lpeg.S, lpeg.Ct, lpeg.C, lpeg.Cs, lpeg.Cc
 local match = lpeg.match
 
@@ -488,11 +490,9 @@ end
 --~
 --~ local decode_pattern = lpeg.Ct(utf8^0) * -1
 
-
 local cont = R("\128\191")   -- continuation byte
 
-lpeg.utf8 = R("\0\127") + R("\194\223") * cont + R("\224\239") * cont * cont + R("\240\244") * cont * cont * cont
-
+lpeg.patterns.utf8 = R("\0\127") + R("\194\223") * cont + R("\224\239") * cont * cont + R("\240\244") * cont * cont * cont
 
 
 end -- of closure
@@ -1868,6 +1868,7 @@ elseif os.type == "windows" then
 elseif name == "linux" then
 
     function os.resolvers.platform(t,k)
+        -- we sometims have HOSTTYPE set so let's check that first
         local platform, architecture = "", os.getenv("HOSTTYPE") or os.resultof("uname -m") or ""
         if find(architecture,"x86_64") then
             platform = "linux-64"
@@ -1881,17 +1882,28 @@ elseif name == "linux" then
         return platform
     end
 
-elseif name == "macosx" then -- a rather inconsistent mess
+elseif name == "macosx" then
+
+    --[[
+        Identifying the architecture of OSX is quite a mess and this
+        is the best we can come up with. For some reason $HOSTTYPE is
+        a kind of pseudo environment variable, not known to the current
+        environment. And yes, uname cannot be trusted either, so there
+        is a change that you end up with a 32 bit run on a 64 bit system.
+        Also, some proper 64 bit intel macs are too cheap (low-end) and
+        therefore not permitted to run the 64 bit kernel.
+      ]]--
 
     function os.resolvers.platform(t,k)
-        local platform, architecture = "", os.resultof("uname -m") or ""
+     -- local platform, architecture = "", os.getenv("HOSTTYPE") or ""
+     -- if architecture == "" then
+     --     architecture = os.resultof("echo $HOSTTYPE") or ""
+     -- end
+        local platform, architecture = "", os.resultof("echo $HOSTTYPE") or ""
         if architecture == "" then
-            architecture = os.getenv("HOSTTYPE") or ""
-        end
-        if architecture == "" then
-            architecture = os.resultof("echo $HOSTTYPE") or ""
-        end
-        if find(architecture,"i386") then
+         -- print("\nI have no clue what kind of OSX you're running so let's assume an 32 bit intel.\n")
+            platform = "osx-intel"
+        elseif find(architecture,"i386") then
             platform = "osx-intel"
         elseif find(architecture,"x86_64") then
             platform = "osx-64"
@@ -1931,6 +1943,21 @@ elseif name == "freebsd" then
         return platform
     end
 
+elseif name == "kfreebsd" then
+
+    function os.resolvers.platform(t,k)
+        -- we sometims have HOSTTYPE set so let's check that first
+        local platform, architecture = "", os.getenv("HOSTTYPE") or os.resultof("uname -m") or ""
+        if find(architecture,"x86_64") then
+            platform = "kfreebsd-64"
+        else
+            platform = "kfreebsd-i386"
+        end
+        os.setenv("MTX_PLATFORM",platform)
+        os.platform = platform
+        return platform
+    end
+
 else
 
     -- platform = "linux"
@@ -1967,6 +1994,21 @@ function os.uuid()
     )
 end
 
+local d
+
+function os.timezone(delta)
+    d = d or tonumber(tonumber(os.date("%H")-os.date("!%H")))
+    if delta then
+        if d > 0 then
+            return format("+%02i:00",d)
+        else
+            return format("-%02i:00",-d)
+        end
+    else
+        return 1
+    end
+end
+
 
 end -- of closure
 
@@ -1985,7 +2027,7 @@ if not modules then modules = { } end modules ['l-file'] = {
 file = file or { }
 
 local concat = table.concat
-local find, gmatch, match, gsub, sub = string.find, string.gmatch, string.match, string.gsub, string.sub
+local find, gmatch, match, gsub, sub, char = string.find, string.gmatch, string.match, string.gsub, string.sub, string.char
 local lpegmatch = lpeg.match
 
 function file.removesuffix(filename)
@@ -2022,14 +2064,33 @@ end
 
 file.suffix = file.extname
 
---~ print(file.join("x/","/y"))
---~ print(file.join("http://","/y"))
---~ print(file.join("http://a","/y"))
---~ print(file.join("http:///a","/y"))
---~ print(file.join("//nas-1","/y"))
+--~ function file.join(...)
+--~     local pth = concat({...},"/")
+--~     pth = gsub(pth,"\\","/")
+--~     local a, b = match(pth,"^(.*://)(.*)$")
+--~     if a and b then
+--~         return a .. gsub(b,"//+","/")
+--~     end
+--~     a, b = match(pth,"^(//)(.*)$")
+--~     if a and b then
+--~         return a .. gsub(b,"//+","/")
+--~     end
+--~     return (gsub(pth,"//+","/"))
+--~ end
+
+local trick_1 = char(1)
+local trick_2 = "^" .. trick_1 .. "/+"
 
 function file.join(...)
-    local pth = concat({...},"/")
+    local lst = { ... }
+    local a, b = lst[1], lst[2]
+    if a == "" then
+        lst[1] = trick_1
+    elseif b and find(a,"^/+$") and find(b,"^/") then
+        lst[1] = ""
+        lst[2] = gsub(b,"^/+","")
+    end
+    local pth = concat(lst,"/")
     pth = gsub(pth,"\\","/")
     local a, b = match(pth,"^(.*://)(.*)$")
     if a and b then
@@ -2039,9 +2100,20 @@ function file.join(...)
     if a and b then
         return a .. gsub(b,"//+","/")
     end
+    pth = gsub(pth,trick_2,"")
     return (gsub(pth,"//+","/"))
 end
 
+--~ print(file.join("//","/y"))
+--~ print(file.join("/","/y"))
+--~ print(file.join("","/y"))
+--~ print(file.join("/x/","/y"))
+--~ print(file.join("x/","/y"))
+--~ print(file.join("http://","/y"))
+--~ print(file.join("http://a","/y"))
+--~ print(file.join("http:///a","/y"))
+--~ print(file.join("//nas-1","/y"))
+
 function file.iswritable(name)
     local a = lfs.attributes(name) or lfs.attributes(file.dirname(name,"."))
     return a and sub(a.permissions,2,2) == "w"
@@ -2080,16 +2152,22 @@ function file.join_path(tab)
     return concat(tab,io.pathseparator) -- can have trailing //
 end
 
+-- we can hash them weakly
+
 function file.collapse_path(str)
-    str = gsub(str,"/%./","/")
-    local n, m = 1, 1
-    while n > 0 or m > 0 do
-        str, n = gsub(str,"[^/%.]+/%.%.$","")
-        str, m = gsub(str,"[^/%.]+/%.%./","")
-    end
-    str = gsub(str,"([^/])/$","%1")
-    str = gsub(str,"^%./","")
-    str = gsub(str,"/%.$","")
+    str = gsub(str,"\\","/")
+    if find(str,"/") then
+        str = gsub(str,"^%./",(gsub(lfs.currentdir(),"\\","/")) .. "/") -- ./xx in qualified
+        str = gsub(str,"/%./","/")
+        local n, m = 1, 1
+        while n > 0 or m > 0 do
+            str, n = gsub(str,"[^/%.]+/%.%.$","")
+            str, m = gsub(str,"[^/%.]+/%.%./","")
+        end
+        str = gsub(str,"([^/])/$","%1")
+    --  str = gsub(str,"^%./","") -- ./xx in qualified
+        str = gsub(str,"/%.$","")
+    end
     if str == "" then str = "." end
     return str
 end
@@ -2391,7 +2469,7 @@ function url.hashed(str)
 end
 
 function url.hasscheme(str)
-    return not url.split(str).nosheme
+    return url.split(str)[1] ~= ""
 end
 
 function url.addscheme(str,scheme)
@@ -2788,7 +2866,7 @@ else
 --~         print(dir.mkdirs("///a/b/c"))
 --~         print(dir.mkdirs("a/bbb//ccc/"))
 
-    function dir.expand_name(str)
+    function dir.expand_name(str) -- will be merged with cleanpath and collapsepath
         if not find(str,"^/") then
             str = lfs.currentdir() .. "/" .. str
         end
@@ -3503,6 +3581,8 @@ local stripper = lpeg.Cs((number + 1)^0)
 --~ lpegmatch(stripper,str)
 --~ print(#str, os.clock()-ts, lpegmatch(stripper,sample))
 
+lpeg.patterns.strip_zeros = stripper
+
 function aux.strip_zeros(str)
     return lpegmatch(stripper,str)
 end
@@ -3789,14 +3869,14 @@ end
 function setters.enable(t,what)
     local e = t.enable
     t.enable, t.done = enable, { }
-    enable(t,string.simpleesc(what))
+    enable(t,string.simpleesc(tostring(what)))
     t.enable, t.done = e, { }
 end
 
 function setters.disable(t,what)
     local e = t.disable
     t.disable, t.done = disable, { }
-    disable(t,string.simpleesc(what))
+    disable(t,string.simpleesc(tostring(what)))
     t.disable, t.done = e, { }
 end
 
@@ -3847,13 +3927,15 @@ function setters.new(name)
     return t
 end
 
-trackers   = setters.new("trackers")
-directives = setters.new("directives")
+trackers    = setters.new("trackers")
+directives  = setters.new("directives")
+experiments = setters.new("experiments")
 
 -- nice trick: we overload two of the directives related functions with variants that
 -- do tracing (itself using a tracker) .. proof of concept
 
-local trace_directives = false local trace_directives = false  trackers.register("system.directives", function(v) trace_directives = v end)
+local trace_directives  = false local trace_directives  = false  trackers.register("system.directives",  function(v) trace_directives  = v end)
+local trace_experiments = false local trace_experiments = false  trackers.register("system.experiments", function(v) trace_experiments = v end)
 
 local e = directives.enable
 local d = directives.disable
@@ -3868,6 +3950,26 @@ function directives.disable(...)
     d(...)
 end
 
+local e = experiments.enable
+local d = experiments.disable
+
+function experiments.enable(...)
+    commands.writestatus("experiments","enabling: %s",concat({...}," "))
+    e(...)
+end
+
+function experiments.disable(...)
+    commands.writestatus("experiments","disabling: %s",concat({...}," "))
+    d(...)
+end
+
+-- a useful example
+
+directives.register("system.nostatistics", function(v)
+    statistics.enable = not v
+end)
+
+
 
 end -- of closure
 
@@ -4181,6 +4283,14 @@ function statistics.hastimer(instance)
     return instance and instance.starttime
 end
 
+function statistics.resettiming(instance)
+    if not instance then
+        notimer = { timing = 0, loadtime = 0 }
+    else
+        instance.timing, instance.loadtime = 0, 0
+    end
+end
+
 function statistics.starttiming(instance)
     if not instance then
         notimer = { }
@@ -4240,6 +4350,12 @@ function statistics.elapsedindeed(instance)
     return t > statistics.threshold
 end
 
+function statistics.elapsedseconds(instance,rest) -- returns nil if 0 seconds
+    if statistics.elapsedindeed(instance) then
+        return format("%s seconds %s", statistics.elapsedtime(instance),rest or "")
+    end
+end
+
 -- general function
 
 function statistics.register(tag,fnc)
@@ -4318,6 +4434,23 @@ function statistics.timed(action,report)
     report("total runtime: %s",statistics.elapsedtime(timer))
 end
 
+-- where, not really the best spot for this:
+
+commands = commands or { }
+
+local timer
+
+function commands.resettimer()
+    statistics.resettiming(timer)
+    statistics.starttiming(timer)
+end
+
+function commands.elapsedtime()
+    statistics.stoptiming(timer)
+    tex.sprint(statistics.elapsedtime(timer))
+end
+
+commands.resettimer()
 
 
 end -- of closure
@@ -4755,8 +4888,8 @@ suffixes['lua'] = { 'lua', 'luc', 'tma', 'tmc' }
 
 alternatives['map files']            = 'map'
 alternatives['enc files']            = 'enc'
-alternatives['cid files']            = 'cid'
-alternatives['fea files']            = 'fea'
+alternatives['cid maps']             = 'cid' -- great, why no cid files
+alternatives['font feature files']   = 'fea' -- and fea files here
 alternatives['opentype fonts']       = 'otf'
 alternatives['truetype fonts']       = 'ttf'
 alternatives['truetype collections'] = 'ttc'
@@ -4899,8 +5032,10 @@ local function check_configuration() -- not yet ok, no time for debugging now
         -- bad luck
     end
     fix("LUAINPUTS"   , ".;$TEXINPUTS;$TEXMFSCRIPTS") -- no progname, hm
-    fix("FONTFEATURES", ".;$TEXMF/fonts/fea//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
-    fix("FONTCIDMAPS" , ".;$TEXMF/fonts/cid//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    -- this will go away some day
+    fix("FONTFEATURES", ".;$TEXMF/fonts/{data,fea}//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    fix("FONTCIDMAPS" , ".;$TEXMF/fonts/{data,cid}//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    --
     fix("LUATEXLIBS"  , ".;$TEXMF/luatex/lua//")
 end
 
@@ -5290,7 +5425,7 @@ function resolvers.load_cnf()
     else
         instance.rootpath = instance.cnffiles[1]
         for k,fname in ipairs(instance.cnffiles) do
-            instance.cnffiles[k] = file.collapse_path(gsub(fname,"\\",'/'))
+            instance.cnffiles[k] = file.collapse_path(fname)
         end
         for i=1,3 do
             instance.rootpath = file.dirname(instance.rootpath)
@@ -5319,7 +5454,7 @@ function resolvers.load_lua()
     else
         instance.rootpath = instance.luafiles[1]
         for k,fname in ipairs(instance.luafiles) do
-            instance.luafiles[k] = file.collapse_path(gsub(fname,"\\",'/'))
+            instance.luafiles[k] = file.collapse_path(fname)
         end
         for i=1,3 do
             instance.rootpath = file.dirname(instance.rootpath)
@@ -5444,7 +5579,7 @@ local weird = lpeg.P(".")^1 + lpeg.anywhere(lpeg.S("~`!#$%^&*()={}[]:;\"\'||<>,?
 
 --~ local l_forbidden = lpeg.S("~`!#$%^&*()={}[]:;\"\'||\\/<>,?\n\r\t")
 --~ local l_confusing = lpeg.P(" ")
---~ local l_character = lpeg.utf8
+--~ local l_character = lpeg.patterns.utf8
 --~ local l_dangerous = lpeg.P(".")
 
 --~ local l_normal = (l_character - l_forbidden - l_confusing - l_dangerous) * (l_character - l_forbidden - l_confusing^2)^0 * lpeg.P(-1)
@@ -6184,8 +6319,7 @@ end
 local function collect_instance_files(filename,collected) -- todo : plugin (scanners, checkers etc)
     local result = collected or { }
     local stamp  = nil
-    filename = file.collapse_path(filename)  -- elsewhere
-    filename = file.collapse_path(gsub(filename,"\\","/")) -- elsewhere
+    filename = file.collapse_path(filename)
     -- speed up / beware: format problem
     if instance.remember then
         stamp = filename .. "--" .. instance.engine .. "--" .. instance.progname .. "--" .. instance.format
@@ -6666,12 +6800,13 @@ end
 function table.sequenced(t,sep) -- temp here
     local s = { }
     for k, v in pairs(t) do -- pairs?
-        s[#s+1] = k .. "=" .. v
+        s[#s+1] = k .. "=" .. tostring(v)
     end
     return concat(s, sep or " | ")
 end
 
 function resolvers.methodhandler(what, filename, filetype) -- ...
+    filename = file.collapse_path(filename)
     local specification = (type(filename) == "string" and resolvers.splitmethod(filename)) or filename -- no or { }, let it bomb
     local scheme = specification.scheme
     if resolvers[what][scheme] then
diff --git a/scripts/context/stubs/mswin/metatex.exe b/scripts/context/stubs/mswin/metatex.exe
index 9a67fc133..2d45f2749 100755
--- a/scripts/context/stubs/mswin/metatex.exe
+++ b/scripts/context/stubs/mswin/metatex.exe
diff --git a/scripts/context/stubs/mswin/mtxrun.dll b/scripts/context/stubs/mswin/mtxrun.dll
index 6af687abe..bb7af56ec 100644
--- a/scripts/context/stubs/mswin/mtxrun.dll
+++ b/scripts/context/stubs/mswin/mtxrun.dll
diff --git a/scripts/context/stubs/mswin/mtxrun.exe b/scripts/context/stubs/mswin/mtxrun.exe
index 9a67fc133..2d45f2749 100755
--- a/scripts/context/stubs/mswin/mtxrun.exe
+++ b/scripts/context/stubs/mswin/mtxrun.exe
diff --git a/scripts/context/stubs/mswin/mtxrun.lua b/scripts/context/stubs/mswin/mtxrun.lua
index 8a2d7a123..ef7eda9b0 100644
--- a/scripts/context/stubs/mswin/mtxrun.lua
+++ b/scripts/context/stubs/mswin/mtxrun.lua
@@ -347,6 +347,8 @@ if not modules then modules = { } end modules ['l-lpeg'] = {
 
 lpeg = require("lpeg")
 
+lpeg.patterns = lpeg.patterns or { } -- so that we can share
+
 local P, R, S, Ct, C, Cs, Cc = lpeg.P, lpeg.R, lpeg.S, lpeg.Ct, lpeg.C, lpeg.Cs, lpeg.Cc
 local match = lpeg.match
 
@@ -497,11 +499,9 @@ end
 --~
 --~ local decode_pattern = lpeg.Ct(utf8^0) * -1
 
-
 local cont = R("\128\191")   -- continuation byte
 
-lpeg.utf8 = R("\0\127") + R("\194\223") * cont + R("\224\239") * cont * cont + R("\240\244") * cont * cont * cont
-
+lpeg.patterns.utf8 = R("\0\127") + R("\194\223") * cont + R("\224\239") * cont * cont + R("\240\244") * cont * cont * cont
 
 
 end -- of closure
@@ -1952,6 +1952,21 @@ elseif name == "freebsd" then
         return platform
     end
 
+elseif name == "kfreebsd" then
+
+    function os.resolvers.platform(t,k)
+        -- we sometims have HOSTTYPE set so let's check that first
+        local platform, architecture = "", os.getenv("HOSTTYPE") or os.resultof("uname -m") or ""
+        if find(architecture,"x86_64") then
+            platform = "kfreebsd-64"
+        else
+            platform = "kfreebsd-i386"
+        end
+        os.setenv("MTX_PLATFORM",platform)
+        os.platform = platform
+        return platform
+    end
+
 else
 
     -- platform = "linux"
@@ -2021,7 +2036,7 @@ if not modules then modules = { } end modules ['l-file'] = {
 file = file or { }
 
 local concat = table.concat
-local find, gmatch, match, gsub, sub = string.find, string.gmatch, string.match, string.gsub, string.sub
+local find, gmatch, match, gsub, sub, char = string.find, string.gmatch, string.match, string.gsub, string.sub, string.char
 local lpegmatch = lpeg.match
 
 function file.removesuffix(filename)
@@ -2058,14 +2073,33 @@ end
 
 file.suffix = file.extname
 
---~ print(file.join("x/","/y"))
---~ print(file.join("http://","/y"))
---~ print(file.join("http://a","/y"))
---~ print(file.join("http:///a","/y"))
---~ print(file.join("//nas-1","/y"))
+--~ function file.join(...)
+--~     local pth = concat({...},"/")
+--~     pth = gsub(pth,"\\","/")
+--~     local a, b = match(pth,"^(.*://)(.*)$")
+--~     if a and b then
+--~         return a .. gsub(b,"//+","/")
+--~     end
+--~     a, b = match(pth,"^(//)(.*)$")
+--~     if a and b then
+--~         return a .. gsub(b,"//+","/")
+--~     end
+--~     return (gsub(pth,"//+","/"))
+--~ end
+
+local trick_1 = char(1)
+local trick_2 = "^" .. trick_1 .. "/+"
 
 function file.join(...)
-    local pth = concat({...},"/")
+    local lst = { ... }
+    local a, b = lst[1], lst[2]
+    if a == "" then
+        lst[1] = trick_1
+    elseif b and find(a,"^/+$") and find(b,"^/") then
+        lst[1] = ""
+        lst[2] = gsub(b,"^/+","")
+    end
+    local pth = concat(lst,"/")
     pth = gsub(pth,"\\","/")
     local a, b = match(pth,"^(.*://)(.*)$")
     if a and b then
@@ -2075,9 +2109,20 @@ function file.join(...)
     if a and b then
         return a .. gsub(b,"//+","/")
     end
+    pth = gsub(pth,trick_2,"")
     return (gsub(pth,"//+","/"))
 end
 
+--~ print(file.join("//","/y"))
+--~ print(file.join("/","/y"))
+--~ print(file.join("","/y"))
+--~ print(file.join("/x/","/y"))
+--~ print(file.join("x/","/y"))
+--~ print(file.join("http://","/y"))
+--~ print(file.join("http://a","/y"))
+--~ print(file.join("http:///a","/y"))
+--~ print(file.join("//nas-1","/y"))
+
 function file.iswritable(name)
     local a = lfs.attributes(name) or lfs.attributes(file.dirname(name,"."))
     return a and sub(a.permissions,2,2) == "w"
@@ -2116,16 +2161,22 @@ function file.join_path(tab)
     return concat(tab,io.pathseparator) -- can have trailing //
 end
 
+-- we can hash them weakly
+
 function file.collapse_path(str)
-    str = gsub(str,"/%./","/")
-    local n, m = 1, 1
-    while n > 0 or m > 0 do
-        str, n = gsub(str,"[^/%.]+/%.%.$","")
-        str, m = gsub(str,"[^/%.]+/%.%./","")
-    end
-    str = gsub(str,"([^/])/$","%1")
-    str = gsub(str,"^%./","")
-    str = gsub(str,"/%.$","")
+    str = gsub(str,"\\","/")
+    if find(str,"/") then
+        str = gsub(str,"^%./",(gsub(lfs.currentdir(),"\\","/")) .. "/") -- ./xx in qualified
+        str = gsub(str,"/%./","/")
+        local n, m = 1, 1
+        while n > 0 or m > 0 do
+            str, n = gsub(str,"[^/%.]+/%.%.$","")
+            str, m = gsub(str,"[^/%.]+/%.%./","")
+        end
+        str = gsub(str,"([^/])/$","%1")
+    --  str = gsub(str,"^%./","") -- ./xx in qualified
+        str = gsub(str,"/%.$","")
+    end
     if str == "" then str = "." end
     return str
 end
@@ -2824,7 +2875,7 @@ else
 --~         print(dir.mkdirs("///a/b/c"))
 --~         print(dir.mkdirs("a/bbb//ccc/"))
 
-    function dir.expand_name(str)
+    function dir.expand_name(str) -- will be merged with cleanpath and collapsepath
         if not find(str,"^/") then
             str = lfs.currentdir() .. "/" .. str
         end
@@ -3340,6 +3391,8 @@ local stripper = lpeg.Cs((number + 1)^0)
 --~ lpegmatch(stripper,str)
 --~ print(#str, os.clock()-ts, lpegmatch(stripper,sample))
 
+lpeg.patterns.strip_zeros = stripper
+
 function aux.strip_zeros(str)
     return lpegmatch(stripper,str)
 end
@@ -3626,14 +3679,14 @@ end
 function setters.enable(t,what)
     local e = t.enable
     t.enable, t.done = enable, { }
-    enable(t,string.simpleesc(what))
+    enable(t,string.simpleesc(tostring(what)))
     t.enable, t.done = e, { }
 end
 
 function setters.disable(t,what)
     local e = t.disable
     t.disable, t.done = disable, { }
-    disable(t,string.simpleesc(what))
+    disable(t,string.simpleesc(tostring(what)))
     t.disable, t.done = e, { }
 end
 
@@ -3720,6 +3773,13 @@ function experiments.disable(...)
     d(...)
 end
 
+-- a useful example
+
+directives.register("system.nostatistics", function(v)
+    statistics.enable = not v
+end)
+
+
 
 end -- of closure
 
@@ -3995,9 +4055,9 @@ local function attribute_specification_error(str)
     return str
 end
 
-function xml.unknown_dec_entity_format(str) return format("&%s;",  str) end
+function xml.unknown_dec_entity_format(str) return (str == "" and "&error;") or format("&%s;",str) end
 function xml.unknown_hex_entity_format(str) return format("&#x%s;",str) end
-function xml.unknown_any_entity_format(str) return format("&%s;",  str) end
+function xml.unknown_any_entity_format(str) return format("&#x%s;",str) end
 
 local function handle_hex_entity(str)
     local h = hcache[str]
@@ -4111,7 +4171,11 @@ local function handle_any_entity(str)
                     if trace_entities then
                         logs.report("xml","keeping entity &%s;",str)
                     end
-                    a = "&" .. str .. ";"
+                    if str == "" then
+                        a = "&error;"
+                    else
+                        a = "&" .. str .. ";"
+                    end
                 end
             end
             acache[str] = a
@@ -4132,6 +4196,9 @@ local function handle_any_entity(str)
             if a then
                 -- one of the predefined
                 acache[str] = a
+            elseif str == "" then
+                a = "&error;"
+                acache[str] = a
             else
                 a = "&" .. str .. ";"
                 acache[str] = a
@@ -4460,7 +4527,7 @@ function xml.checkbom(root) -- can be made faster
         local dt, found = root.dt, false
         for k=1,#dt do
             local v = dt[k]
-            if type(v) == "table" and v.special and v.tg == "@pi" and find(v.dt,"xml.*version=") then
+            if type(v) == "table" and v.special and v.tg == "@pi@" and find(v.dt[1],"xml.*version=") then
                 found = true
                 break
             end
@@ -4842,6 +4909,8 @@ function xml.assign(dt,k,root)
     end
 end
 
+-- the following helpers may move
+
 --[[ldx--
 <p>The next helper assigns a tree (or string). Usage:</p>
 <typing>
@@ -4860,6 +4929,22 @@ function xml.tocdata(e,wrapper)
     e.dt = { t }
 end
 
+function xml.makestandalone(root)
+    if root.ri then
+        local dt = root.dt
+        for k=1,#dt do
+            local v = dt[k]
+            if type(v) == "table" and v.special and v.tg == "@pi@" then
+                local txt = v.dt[1]
+                if find(txt,"xml.*version=") then
+                    v.dt[1] = txt .. " standalone='yes'"
+                    break
+                end
+            end
+        end
+    end
+end
+
 
 end -- of closure
 
@@ -5476,8 +5561,13 @@ local register_initial_child           = { kind = "axis", axis = "initial-child"
 
 local register_all_nodes               = { kind = "nodes", nodetest = true, nodes = { true, false, false } }
 
+local skip = { }
+
 local function errorrunner_e(str,cnv)
-    logs.report("lpath","error in expression: %s => %s",str,cnv)
+    if not skip[str] then
+        logs.report("lpath","error in expression: %s => %s",str,cnv)
+        skip[str] = cnv or str
+    end
     return false
 end
 local function errorrunner_f(str,arg)
@@ -7287,6 +7377,14 @@ function statistics.hastimer(instance)
     return instance and instance.starttime
 end
 
+function statistics.resettiming(instance)
+    if not instance then
+        notimer = { timing = 0, loadtime = 0 }
+    else
+        instance.timing, instance.loadtime = 0, 0
+    end
+end
+
 function statistics.starttiming(instance)
     if not instance then
         notimer = { }
@@ -7346,6 +7444,12 @@ function statistics.elapsedindeed(instance)
     return t > statistics.threshold
 end
 
+function statistics.elapsedseconds(instance,rest) -- returns nil if 0 seconds
+    if statistics.elapsedindeed(instance) then
+        return format("%s seconds %s", statistics.elapsedtime(instance),rest or "")
+    end
+end
+
 -- general function
 
 function statistics.register(tag,fnc)
@@ -7424,6 +7528,23 @@ function statistics.timed(action,report)
     report("total runtime: %s",statistics.elapsedtime(timer))
 end
 
+-- where, not really the best spot for this:
+
+commands = commands or { }
+
+local timer
+
+function commands.resettimer()
+    statistics.resettiming(timer)
+    statistics.starttiming(timer)
+end
+
+function commands.elapsedtime()
+    statistics.stoptiming(timer)
+    tex.sprint(statistics.elapsedtime(timer))
+end
+
+commands.resettimer()
 
 
 end -- of closure
@@ -7861,8 +7982,8 @@ suffixes['lua'] = { 'lua', 'luc', 'tma', 'tmc' }
 
 alternatives['map files']            = 'map'
 alternatives['enc files']            = 'enc'
-alternatives['cid files']            = 'cid'
-alternatives['fea files']            = 'fea'
+alternatives['cid maps']             = 'cid' -- great, why no cid files
+alternatives['font feature files']   = 'fea' -- and fea files here
 alternatives['opentype fonts']       = 'otf'
 alternatives['truetype fonts']       = 'ttf'
 alternatives['truetype collections'] = 'ttc'
@@ -8005,8 +8126,10 @@ local function check_configuration() -- not yet ok, no time for debugging now
         -- bad luck
     end
     fix("LUAINPUTS"   , ".;$TEXINPUTS;$TEXMFSCRIPTS") -- no progname, hm
-    fix("FONTFEATURES", ".;$TEXMF/fonts/fea//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
-    fix("FONTCIDMAPS" , ".;$TEXMF/fonts/cid//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    -- this will go away some day
+    fix("FONTFEATURES", ".;$TEXMF/fonts/{data,fea}//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    fix("FONTCIDMAPS" , ".;$TEXMF/fonts/{data,cid}//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    --
     fix("LUATEXLIBS"  , ".;$TEXMF/luatex/lua//")
 end
 
@@ -8396,7 +8519,7 @@ function resolvers.load_cnf()
     else
         instance.rootpath = instance.cnffiles[1]
         for k,fname in ipairs(instance.cnffiles) do
-            instance.cnffiles[k] = file.collapse_path(gsub(fname,"\\",'/'))
+            instance.cnffiles[k] = file.collapse_path(fname)
         end
         for i=1,3 do
             instance.rootpath = file.dirname(instance.rootpath)
@@ -8425,7 +8548,7 @@ function resolvers.load_lua()
     else
         instance.rootpath = instance.luafiles[1]
         for k,fname in ipairs(instance.luafiles) do
-            instance.luafiles[k] = file.collapse_path(gsub(fname,"\\",'/'))
+            instance.luafiles[k] = file.collapse_path(fname)
         end
         for i=1,3 do
             instance.rootpath = file.dirname(instance.rootpath)
@@ -8550,7 +8673,7 @@ local weird = lpeg.P(".")^1 + lpeg.anywhere(lpeg.S("~`!#$%^&*()={}[]:;\"\'||<>,?
 
 --~ local l_forbidden = lpeg.S("~`!#$%^&*()={}[]:;\"\'||\\/<>,?\n\r\t")
 --~ local l_confusing = lpeg.P(" ")
---~ local l_character = lpeg.utf8
+--~ local l_character = lpeg.patterns.utf8
 --~ local l_dangerous = lpeg.P(".")
 
 --~ local l_normal = (l_character - l_forbidden - l_confusing - l_dangerous) * (l_character - l_forbidden - l_confusing^2)^0 * lpeg.P(-1)
@@ -9290,8 +9413,7 @@ end
 local function collect_instance_files(filename,collected) -- todo : plugin (scanners, checkers etc)
     local result = collected or { }
     local stamp  = nil
-    filename = file.collapse_path(filename)  -- elsewhere
-    filename = file.collapse_path(gsub(filename,"\\","/")) -- elsewhere
+    filename = file.collapse_path(filename)
     -- speed up / beware: format problem
     if instance.remember then
         stamp = filename .. "--" .. instance.engine .. "--" .. instance.progname .. "--" .. instance.format
@@ -9772,12 +9894,13 @@ end
 function table.sequenced(t,sep) -- temp here
     local s = { }
     for k, v in pairs(t) do -- pairs?
-        s[#s+1] = k .. "=" .. v
+        s[#s+1] = k .. "=" .. tostring(v)
     end
     return concat(s, sep or " | ")
 end
 
 function resolvers.methodhandler(what, filename, filetype) -- ...
+    filename = file.collapse_path(filename)
     local specification = (type(filename) == "string" and resolvers.splitmethod(filename)) or filename -- no or { }, let it bomb
     local scheme = specification.scheme
     if resolvers[what][scheme] then
diff --git a/scripts/context/stubs/mswin/texexec.exe b/scripts/context/stubs/mswin/texexec.exe
index 9a67fc133..2d45f2749 100755
--- a/scripts/context/stubs/mswin/texexec.exe
+++ b/scripts/context/stubs/mswin/texexec.exe
diff --git a/scripts/context/stubs/mswin/texmfstart.exe b/scripts/context/stubs/mswin/texmfstart.exe
index 9a67fc133..2d45f2749 100755
--- a/scripts/context/stubs/mswin/texmfstart.exe
+++ b/scripts/context/stubs/mswin/texmfstart.exe
diff --git a/scripts/context/stubs/source/mtxrun_dll.c b/scripts/context/stubs/source/mtxrun_dll.c
index 6cac18c9b..9836c2ac5 100644
--- a/scripts/context/stubs/source/mtxrun_dll.c
+++ b/scripts/context/stubs/source/mtxrun_dll.c
@@ -1,214 +1,207 @@
-/*
+/************************************************************************
 
-Copyright:
+  Copyright:
 
-The originally 'runscript' program was written by in 2009 by
-T.M.Trzeciak and is public domain. This derived mtxrun program
-is an adapted version by Hans Hagen.
+  Public Domain
+  Originally written in 2010 by Tomasz M. Trzeciak and Hans Hagen
 
-Comment:
+  This program is derived from the 'runscript' program originally
+  written in 2009 by T.M. Trzeciak. It has been adapted for use in
+  ConTeXt MkIV.
 
-In ConTeXt MkIV we have two core scripts: luatools.lua and
-mtxrun.lua where the second one is used to launch other scripts.
-Normally a user will use a call like:
+  Comment:
 
-mtxrun --script font --reload
+  In ConTeXt MkIV we have two core scripts: luatools.lua and
+  mtxrun.lua where the second one is used to launch other scripts.
+  Normally a user will use a call like:
 
-Here mtxrun is a lua script. In order to avoid the usage of a cmd
-file on windows this runner will start texlua directly. In TeXlive
-a runner is added for each cmd file but we don't want that overhead
-(and extra files). By using an exe we can call these scripts in
-batch files without the need for using call.
+  mtxrun --script font --reload
 
-We also don't want to use other runners, like those that use kpse
-to locate the script as this is exactly what mtxrun itself is doing
-already. Therefore the runscript program is adapted to a more direct
-approach suitable for mtxrun.
+  Here mtxrun is a lua script. In order to avoid the usage of a cmd
+  file on windows this runner will start texlua directly. If the
+  shared library luatex.dll is available, texlua will be started in
+  the same process avoiding thus any additional overhead. Otherwise
+  it will be spawned in a new proces.
 
-Compilation:
+  We also don't want to use other runners, like those that use kpse
+  to locate the script as this is exactly what mtxrun itself is doing
+  already. Therefore the runscript program is adapted to a more direct
+  approach suitable for mtxrun.
 
-with gcc (size optimized):
+  Compilation:
 
-gcc -Os -s -shared -o mtxrun.dll mtxrun_dll.c
-gcc -Os -s -o mtxrun.exe mtxrun_exe.c -L./ -lmtxrun
+  with gcc (size optimized):
 
-with tcc (ver. 0.9.24), extra small size
+  gcc -Os -s -shared -o mtxrun.dll mtxrun_dll.c
+  gcc -Os -s -o mtxrun.exe mtxrun_exe.c
 
-tcc -shared -o runscript.dll runscript_dll.c
-tcc -o runscript.exe runscript_exe.c runscript.def
+  with tcc (extra small size):
 
-*/
+  tcc -shared -o mtxrun.dll mtxrun_dll.c
+  tcc -o mtxrun.exe mtxrun_exe.c mtxrun.def
+
+************************************************************************/
 
-#include <windows.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <windows.h>
 
+//#define STATIC
 #define IS_WHITESPACE(c) ((c == ' ') || (c == '\t'))
 #define MAX_CMD 32768
-//~ #define DRYRUN
+#define DIE(...) { \
+  fprintf( stderr, "mtxrun: " ); \
+  fprintf( stderr, __VA_ARGS__ ); \
+  return 1; \
+}
 
-static char dirname [MAX_PATH];
-static char basename[MAX_PATH];
+char texlua_name[] = "texlua"; // just a bare name, luatex strips the rest anyway
+static char cmdline[MAX_CMD];
+static char dirpath[MAX_PATH];
 static char progname[MAX_PATH];
-static char cmdline [MAX_CMD];
-
-__declspec(dllexport) int dllrunscript( int argc, char *argv[] ) {
-
-    int i;
-
-    static char path[MAX_PATH];
-
-    // get file name of this executable and split it into parts
-
-    DWORD nchars = GetModuleFileNameA(NULL, path, MAX_PATH);
-    if ( !nchars || (nchars == MAX_PATH) ) {
-        fprintf(stderr, "mtxrun: unable to determine a valid own name\n");
-        return -1;
-    }
-
-    // file extension part
-
-    i = strlen(path);
-
-    while ( i && (path[i] != '.') && (path[i] != '\\') ) i--;
-
-    strcpy(basename, path);
-
-    if ( basename[i] == '.' ) basename[i] = '\0'; //remove file extension
-
-    // file name part
-
-    while ( i && (path[i] != '\\') ) i--;
-
-    if ( path[i] != '\\' ) {
-        fprintf(stderr, "mtxrun: the runner has no directory part in its name: %s\n", path);
-        return -1;
-    }
-
-    strcpy(dirname, path);
-    dirname[i+1] = '\0'; //remove file name, leave trailing backslash
-    strcpy(progname, &basename[i+1]);
-
-    // find program to execute
-
-    if ( (strlen(basename)+100 >= MAX_PATH) ) {
-        fprintf(stderr, "mtxrun: the runners path is too long: %s\n", path);
-        return -1;
-    }
-
-    // check .lua
-
-    strcpy(path, dirname);
-    strcat(path, "mtxrun.lua");
-
-    if ( GetFileAttributesA(path) != INVALID_FILE_ATTRIBUTES ) {
-		goto PROGRAM_FOUND;
-    } else {
-		fprintf(stderr, "mtxrun: the mtxrun.lua file is not in the same path\n");
-		return -1;
-    }
-
-PROGRAM_FOUND:
-
-    strcpy(cmdline,"texlua.exe ");
-
-    if ( ( strcmp(progname,"mtxrun") == 0 ) || ( strcmp(progname,"luatools") == 0 ) ) {
-        strcat(cmdline, dirname);
-        strcat(cmdline,progname);
-        strcat(cmdline, ".lua");
-    } else if ( ( strcmp(progname,"texmfstart") == 0 ) ) {
-        strcat(cmdline, dirname);
-        strcat(cmdline,"mtxrun.lua");
-    } else {
-        strcat(cmdline, dirname);
-        strcat(cmdline, "mtxrun.lua --script ");
-        strcat(cmdline,progname);
-    }
-
-    // get the command line for this process
-
-    char *argstr;
-    argstr = GetCommandLineA();
-    if ( argstr == NULL ) {
-        fprintf(stderr, "mtxrun: fetching the command line string fails\n");
-        return -1;
+static char scriptpath[MAX_PATH];
+HMODULE dllluatex = NULL;
+typedef int ( *mainlikeproc )( int, char ** );
+
+#ifdef STATIC
+int main( int argc, char *argv[] )
+#else
+__declspec(dllexport) int dllrunscript( int argc, char *argv[] )
+#endif
+{
+  char *s, *argstr, **lua_argv;
+  int k, quoted, lua_argc;
+  int passprogname = 0;
+
+  // directory of this module/executable
+
+  HMODULE module_handle = GetModuleHandle( "mtxrun.dll" );
+  // if ( module_handle == NULL ) exe path will be used, which is OK too
+  k = (int) GetModuleFileName( module_handle, dirpath, MAX_PATH );
+  if ( !k || ( k == MAX_PATH ) )
+    DIE( "unable to determine a valid module name\n" );
+  s = strrchr(dirpath, '\\');
+  if ( s == NULL ) DIE( "no directory part in module path: %s\n", dirpath );
+  *(++s) = '\0'; //remove file name, leave trailing backslash
+
+  // program name
+
+  k = strlen(argv[0]);
+  while ( k && (argv[0][k] != '/') && (argv[0][k] != '\\') ) k--;
+  strcpy(progname, &argv[0][k]);
+  s = progname;
+  if ( s = strrchr(s, '.') ) *s = '\0'; // remove file extension part
+
+  // script path
+
+  strcpy( scriptpath, dirpath );
+  k = strlen(progname);
+  if ( k < 6 ) k = 6; // in case the program name is shorter than "mtxrun"
+  if ( strlen(dirpath) + k + 4 >=  MAX_PATH )
+    DIE( "path too long: %s%s\n", dirpath, progname );
+  if ( ( strcmpi(progname,"mtxrun") == 0 ) || ( strcmpi(progname,"luatools") == 0 ) ) {
+    strcat( scriptpath, progname );
+    strcat( scriptpath, ".lua" );
+  } else {
+    strcat( scriptpath, "mtxrun.lua" );
+    if ( strcmpi(progname,"texmfstart") != 0 ) passprogname = 1;
+  }
+  if ( GetFileAttributes(scriptpath) == INVALID_FILE_ATTRIBUTES )
+    DIE( "file not found: %s\n", scriptpath );
+
+  // link with luatex.dll if available
+
+  if ( dllluatex = LoadLibrary("luatex.dll") )
+  {
+    mainlikeproc dllluatexmain = (mainlikeproc) GetProcAddress( dllluatex, "dllluatexmain" );
+    if ( dllluatexmain == NULL )
+      DIE( "unable to locate dllluatexmain procedure in luatex.dll" );
+
+    // set up argument list for texlua script
+
+    lua_argv = (char **)malloc( (argc + 4) * sizeof(char *) );
+    if ( lua_argv == NULL ) DIE( "out of memory\n" );
+    lua_argv[lua_argc=0] = texlua_name;
+    lua_argv[++lua_argc] = scriptpath; // script to execute
+    if (passprogname) {
+      lua_argv[++lua_argc] = "--script";
+      lua_argv[++lua_argc] = progname;
     }
+    for ( k = 1; k < argc; k++ ) lua_argv[++lua_argc] = argv[k];
+    lua_argv[++lua_argc] = NULL;
 
-    // skip over argv[0] (it can contain embedded double quotes if launched from cmd.exe!)
+    // call texlua interpreter
+    // dllluatexmain  never returns, but we pretend that it does
 
-    int argstrlen = strlen(argstr);
-    int quoted = 0;
-    for ( i = 0; ( i < argstrlen) && ( !IS_WHITESPACE(argstr[i]) || quoted ); i++ )
+    k = dllluatexmain( lua_argc, lua_argv );
+    if (lua_argv) free( lua_argv );
+    return k;
+  }
 
-    if (argstr[i] == '"') quoted = !quoted;
+  // we are still here, so no luatex.dll; spawn texlua.exe instead
 
-    // while ( IS_WHITESPACE(argstr[i]) ) i++; // arguments leading whitespace
+  strcpy( cmdline, "\"" );
+//  strcat( cmdline, dirpath );
+  strcat( cmdline, "texlua.exe\" \"" );
+  strcat( cmdline, scriptpath );
+  strcat( cmdline, "\"" );
+  if (passprogname) {
+    strcat( cmdline, " --script " );
+    strcat( cmdline, progname );
+  }
 
-    argstr = &argstr[i];
+  argstr = GetCommandLine(); // get the command line of this process
+  if ( argstr == NULL ) DIE( "unable to retrieve the command line string\n" );
 
-    if ( strlen(cmdline) + strlen(argstr) >= MAX_CMD ) {
-        fprintf(stderr, "mtxrun: the command line string is too long:\n%s%s\n", cmdline, argstr);
-        return -1;
-    }
+  // skip over argv[0] in the argument string
+  // (it can contain embedded double quotes if launched from cmd.exe!)
 
-    // pass through all the arguments
+  for ( quoted = 0; (*argstr) && ( !IS_WHITESPACE(*argstr) || quoted ); argstr++ )
+    if (*argstr == '"') quoted = !quoted;
 
-    strcat(cmdline, argstr);
+  // pass through all the arguments
 
-#ifdef DRYRUN
-    printf("progname    : %s\n", progname);
-    printf("dirname     : %s\n", dirname);
-    printf("arguments   : %s\n", &argstr[-i]);
-    for (i = 0; i < argc; i++) {
-        printf("argv[%d]     : %s\n", i, argv[i]);
-    }
-    printf("commandline : %s\n", cmdline);
-    return;
-#endif
+  if ( strlen(cmdline) + strlen(argstr) >= MAX_CMD )
+    DIE( "command line string too long:\n%s%s\n", cmdline, argstr );
+  strcat( cmdline, argstr );
 
-    // create child process
+  // create child process
 
-    STARTUPINFOA si; // ANSI variant
-    PROCESS_INFORMATION pi;
-    ZeroMemory( &si, sizeof(si) );
-    si.cb = sizeof(si);
+  STARTUPINFO si;
+  PROCESS_INFORMATION pi;
+  ZeroMemory( &si, sizeof(si) );
+  si.cb = sizeof(si);
 	si.dwFlags = STARTF_USESTDHANDLES;// | STARTF_USESHOWWINDOW;
-
 	//si.dwFlags = STARTF_USESHOWWINDOW;
 	//si.wShowWindow = SW_HIDE ; // can be used to hide console window (requires STARTF_USESHOWWINDOW flag)
-
-	si.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
-	si.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
-	si.hStdError = GetStdHandle(STD_ERROR_HANDLE);
-
-    ZeroMemory( &pi, sizeof(pi) );
-    if( !CreateProcessA(
-        NULL,     // module name (uses command line if NULL)
-        cmdline,  // command line
-        NULL,     // process security attributes
-        NULL,     // thread security attributes
-        TRUE,     // handle inheritance
-        0,        // creation flags, e.g. CREATE_NEW_CONSOLE, CREATE_NO_WINDOW, DETACHED_PROCESS
-        NULL,     // pointer to environment block (uses parent if NULL)
-        NULL,     // starting directory (uses parent if NULL)
-        &si,      // STARTUPINFO structure
-        &pi )     // PROCESS_INFORMATION structure
-    ) {
-        fprintf(stderr, "mtxrun: unable to create a process for: %s\n", cmdline);
-        return -1;
-    }
-    CloseHandle( pi.hThread ); // thread handle is not needed
-    DWORD ret = 0;
-    if ( WaitForSingleObject( pi.hProcess, INFINITE ) == WAIT_OBJECT_0 ) {
-        if ( !GetExitCodeProcess( pi.hProcess, &ret) ) {
-            fprintf(stderr, "mtxrun: unable to fetch the exit code for process: %s\n", cmdline);
-            return -1;
-        }
-    } else {
-        fprintf(stderr, "mtxrun: the script has been terminated unexpectedly: %s\n", cmdline);
-        return -1;
-    }
-    CloseHandle( pi.hProcess );
-
-    return ret;
+	si.hStdInput  = GetStdHandle( STD_INPUT_HANDLE );
+	si.hStdOutput = GetStdHandle( STD_OUTPUT_HANDLE );
+	si.hStdError  = GetStdHandle( STD_ERROR_HANDLE );
+  ZeroMemory( &pi, sizeof(pi) );
+
+  if( !CreateProcess(
+    NULL,     // module name (uses command line if NULL)
+    cmdline,  // command line
+    NULL,     // process security atrributes
+    NULL,     // thread security atrributes
+    TRUE,     // handle inheritance
+    0,        // creation flags, e.g. CREATE_NEW_CONSOLE, CREATE_NO_WINDOW, DETACHED_PROCESS
+    NULL,     // pointer to environment block (uses parent if NULL)
+    NULL,     // starting directory (uses parent if NULL)
+    &si,      // STARTUPINFO structure
+    &pi )     // PROCESS_INFORMATION structure
+  ) DIE( "command execution failed: %s\n", cmdline );
+
+  DWORD ret = 0;
+  CloseHandle( pi.hThread ); // thread handle is not needed
+  if ( WaitForSingleObject( pi.hProcess, INFINITE ) == WAIT_OBJECT_0 ) {
+    if ( !GetExitCodeProcess( pi.hProcess, &ret) )
+        DIE( "unable to retrieve process exit code: %s\n", cmdline );
+  } else DIE( "failed to wait for process termination: %s\n", cmdline );
+  CloseHandle( pi.hProcess );
+
+  // propagate exit code from the child process
+
+  return ret;
 
 }
diff --git a/scripts/context/stubs/unix/luatools b/scripts/context/stubs/unix/luatools
index f9b855f74..1a579eb69 100755
--- a/scripts/context/stubs/unix/luatools
+++ b/scripts/context/stubs/unix/luatools
@@ -338,6 +338,8 @@ if not modules then modules = { } end modules ['l-lpeg'] = {
 
 lpeg = require("lpeg")
 
+lpeg.patterns = lpeg.patterns or { } -- so that we can share
+
 local P, R, S, Ct, C, Cs, Cc = lpeg.P, lpeg.R, lpeg.S, lpeg.Ct, lpeg.C, lpeg.Cs, lpeg.Cc
 local match = lpeg.match
 
@@ -488,11 +490,9 @@ end
 --~
 --~ local decode_pattern = lpeg.Ct(utf8^0) * -1
 
-
 local cont = R("\128\191")   -- continuation byte
 
-lpeg.utf8 = R("\0\127") + R("\194\223") * cont + R("\224\239") * cont * cont + R("\240\244") * cont * cont * cont
-
+lpeg.patterns.utf8 = R("\0\127") + R("\194\223") * cont + R("\224\239") * cont * cont + R("\240\244") * cont * cont * cont
 
 
 end -- of closure
@@ -1868,6 +1868,7 @@ elseif os.type == "windows" then
 elseif name == "linux" then
 
     function os.resolvers.platform(t,k)
+        -- we sometims have HOSTTYPE set so let's check that first
         local platform, architecture = "", os.getenv("HOSTTYPE") or os.resultof("uname -m") or ""
         if find(architecture,"x86_64") then
             platform = "linux-64"
@@ -1881,17 +1882,28 @@ elseif name == "linux" then
         return platform
     end
 
-elseif name == "macosx" then -- a rather inconsistent mess
+elseif name == "macosx" then
+
+    --[[
+        Identifying the architecture of OSX is quite a mess and this
+        is the best we can come up with. For some reason $HOSTTYPE is
+        a kind of pseudo environment variable, not known to the current
+        environment. And yes, uname cannot be trusted either, so there
+        is a change that you end up with a 32 bit run on a 64 bit system.
+        Also, some proper 64 bit intel macs are too cheap (low-end) and
+        therefore not permitted to run the 64 bit kernel.
+      ]]--
 
     function os.resolvers.platform(t,k)
-        local platform, architecture = "", os.resultof("uname -m") or ""
+     -- local platform, architecture = "", os.getenv("HOSTTYPE") or ""
+     -- if architecture == "" then
+     --     architecture = os.resultof("echo $HOSTTYPE") or ""
+     -- end
+        local platform, architecture = "", os.resultof("echo $HOSTTYPE") or ""
         if architecture == "" then
-            architecture = os.getenv("HOSTTYPE") or ""
-        end
-        if architecture == "" then
-            architecture = os.resultof("echo $HOSTTYPE") or ""
-        end
-        if find(architecture,"i386") then
+         -- print("\nI have no clue what kind of OSX you're running so let's assume an 32 bit intel.\n")
+            platform = "osx-intel"
+        elseif find(architecture,"i386") then
             platform = "osx-intel"
         elseif find(architecture,"x86_64") then
             platform = "osx-64"
@@ -1931,6 +1943,21 @@ elseif name == "freebsd" then
         return platform
     end
 
+elseif name == "kfreebsd" then
+
+    function os.resolvers.platform(t,k)
+        -- we sometims have HOSTTYPE set so let's check that first
+        local platform, architecture = "", os.getenv("HOSTTYPE") or os.resultof("uname -m") or ""
+        if find(architecture,"x86_64") then
+            platform = "kfreebsd-64"
+        else
+            platform = "kfreebsd-i386"
+        end
+        os.setenv("MTX_PLATFORM",platform)
+        os.platform = platform
+        return platform
+    end
+
 else
 
     -- platform = "linux"
@@ -1967,6 +1994,21 @@ function os.uuid()
     )
 end
 
+local d
+
+function os.timezone(delta)
+    d = d or tonumber(tonumber(os.date("%H")-os.date("!%H")))
+    if delta then
+        if d > 0 then
+            return format("+%02i:00",d)
+        else
+            return format("-%02i:00",-d)
+        end
+    else
+        return 1
+    end
+end
+
 
 end -- of closure
 
@@ -1985,7 +2027,7 @@ if not modules then modules = { } end modules ['l-file'] = {
 file = file or { }
 
 local concat = table.concat
-local find, gmatch, match, gsub, sub = string.find, string.gmatch, string.match, string.gsub, string.sub
+local find, gmatch, match, gsub, sub, char = string.find, string.gmatch, string.match, string.gsub, string.sub, string.char
 local lpegmatch = lpeg.match
 
 function file.removesuffix(filename)
@@ -2022,14 +2064,33 @@ end
 
 file.suffix = file.extname
 
---~ print(file.join("x/","/y"))
---~ print(file.join("http://","/y"))
---~ print(file.join("http://a","/y"))
---~ print(file.join("http:///a","/y"))
---~ print(file.join("//nas-1","/y"))
+--~ function file.join(...)
+--~     local pth = concat({...},"/")
+--~     pth = gsub(pth,"\\","/")
+--~     local a, b = match(pth,"^(.*://)(.*)$")
+--~     if a and b then
+--~         return a .. gsub(b,"//+","/")
+--~     end
+--~     a, b = match(pth,"^(//)(.*)$")
+--~     if a and b then
+--~         return a .. gsub(b,"//+","/")
+--~     end
+--~     return (gsub(pth,"//+","/"))
+--~ end
+
+local trick_1 = char(1)
+local trick_2 = "^" .. trick_1 .. "/+"
 
 function file.join(...)
-    local pth = concat({...},"/")
+    local lst = { ... }
+    local a, b = lst[1], lst[2]
+    if a == "" then
+        lst[1] = trick_1
+    elseif b and find(a,"^/+$") and find(b,"^/") then
+        lst[1] = ""
+        lst[2] = gsub(b,"^/+","")
+    end
+    local pth = concat(lst,"/")
     pth = gsub(pth,"\\","/")
     local a, b = match(pth,"^(.*://)(.*)$")
     if a and b then
@@ -2039,9 +2100,20 @@ function file.join(...)
     if a and b then
         return a .. gsub(b,"//+","/")
     end
+    pth = gsub(pth,trick_2,"")
     return (gsub(pth,"//+","/"))
 end
 
+--~ print(file.join("//","/y"))
+--~ print(file.join("/","/y"))
+--~ print(file.join("","/y"))
+--~ print(file.join("/x/","/y"))
+--~ print(file.join("x/","/y"))
+--~ print(file.join("http://","/y"))
+--~ print(file.join("http://a","/y"))
+--~ print(file.join("http:///a","/y"))
+--~ print(file.join("//nas-1","/y"))
+
 function file.iswritable(name)
     local a = lfs.attributes(name) or lfs.attributes(file.dirname(name,"."))
     return a and sub(a.permissions,2,2) == "w"
@@ -2080,16 +2152,22 @@ function file.join_path(tab)
     return concat(tab,io.pathseparator) -- can have trailing //
 end
 
+-- we can hash them weakly
+
 function file.collapse_path(str)
-    str = gsub(str,"/%./","/")
-    local n, m = 1, 1
-    while n > 0 or m > 0 do
-        str, n = gsub(str,"[^/%.]+/%.%.$","")
-        str, m = gsub(str,"[^/%.]+/%.%./","")
-    end
-    str = gsub(str,"([^/])/$","%1")
-    str = gsub(str,"^%./","")
-    str = gsub(str,"/%.$","")
+    str = gsub(str,"\\","/")
+    if find(str,"/") then
+        str = gsub(str,"^%./",(gsub(lfs.currentdir(),"\\","/")) .. "/") -- ./xx in qualified
+        str = gsub(str,"/%./","/")
+        local n, m = 1, 1
+        while n > 0 or m > 0 do
+            str, n = gsub(str,"[^/%.]+/%.%.$","")
+            str, m = gsub(str,"[^/%.]+/%.%./","")
+        end
+        str = gsub(str,"([^/])/$","%1")
+    --  str = gsub(str,"^%./","") -- ./xx in qualified
+        str = gsub(str,"/%.$","")
+    end
     if str == "" then str = "." end
     return str
 end
@@ -2391,7 +2469,7 @@ function url.hashed(str)
 end
 
 function url.hasscheme(str)
-    return not url.split(str).nosheme
+    return url.split(str)[1] ~= ""
 end
 
 function url.addscheme(str,scheme)
@@ -2788,7 +2866,7 @@ else
 --~         print(dir.mkdirs("///a/b/c"))
 --~         print(dir.mkdirs("a/bbb//ccc/"))
 
-    function dir.expand_name(str)
+    function dir.expand_name(str) -- will be merged with cleanpath and collapsepath
         if not find(str,"^/") then
             str = lfs.currentdir() .. "/" .. str
         end
@@ -3503,6 +3581,8 @@ local stripper = lpeg.Cs((number + 1)^0)
 --~ lpegmatch(stripper,str)
 --~ print(#str, os.clock()-ts, lpegmatch(stripper,sample))
 
+lpeg.patterns.strip_zeros = stripper
+
 function aux.strip_zeros(str)
     return lpegmatch(stripper,str)
 end
@@ -3789,14 +3869,14 @@ end
 function setters.enable(t,what)
     local e = t.enable
     t.enable, t.done = enable, { }
-    enable(t,string.simpleesc(what))
+    enable(t,string.simpleesc(tostring(what)))
     t.enable, t.done = e, { }
 end
 
 function setters.disable(t,what)
     local e = t.disable
     t.disable, t.done = disable, { }
-    disable(t,string.simpleesc(what))
+    disable(t,string.simpleesc(tostring(what)))
     t.disable, t.done = e, { }
 end
 
@@ -3847,13 +3927,15 @@ function setters.new(name)
     return t
 end
 
-trackers   = setters.new("trackers")
-directives = setters.new("directives")
+trackers    = setters.new("trackers")
+directives  = setters.new("directives")
+experiments = setters.new("experiments")
 
 -- nice trick: we overload two of the directives related functions with variants that
 -- do tracing (itself using a tracker) .. proof of concept
 
-local trace_directives = false local trace_directives = false  trackers.register("system.directives", function(v) trace_directives = v end)
+local trace_directives  = false local trace_directives  = false  trackers.register("system.directives",  function(v) trace_directives  = v end)
+local trace_experiments = false local trace_experiments = false  trackers.register("system.experiments", function(v) trace_experiments = v end)
 
 local e = directives.enable
 local d = directives.disable
@@ -3868,6 +3950,26 @@ function directives.disable(...)
     d(...)
 end
 
+local e = experiments.enable
+local d = experiments.disable
+
+function experiments.enable(...)
+    commands.writestatus("experiments","enabling: %s",concat({...}," "))
+    e(...)
+end
+
+function experiments.disable(...)
+    commands.writestatus("experiments","disabling: %s",concat({...}," "))
+    d(...)
+end
+
+-- a useful example
+
+directives.register("system.nostatistics", function(v)
+    statistics.enable = not v
+end)
+
+
 
 end -- of closure
 
@@ -4181,6 +4283,14 @@ function statistics.hastimer(instance)
     return instance and instance.starttime
 end
 
+function statistics.resettiming(instance)
+    if not instance then
+        notimer = { timing = 0, loadtime = 0 }
+    else
+        instance.timing, instance.loadtime = 0, 0
+    end
+end
+
 function statistics.starttiming(instance)
     if not instance then
         notimer = { }
@@ -4240,6 +4350,12 @@ function statistics.elapsedindeed(instance)
     return t > statistics.threshold
 end
 
+function statistics.elapsedseconds(instance,rest) -- returns nil if 0 seconds
+    if statistics.elapsedindeed(instance) then
+        return format("%s seconds %s", statistics.elapsedtime(instance),rest or "")
+    end
+end
+
 -- general function
 
 function statistics.register(tag,fnc)
@@ -4318,6 +4434,23 @@ function statistics.timed(action,report)
     report("total runtime: %s",statistics.elapsedtime(timer))
 end
 
+-- where, not really the best spot for this:
+
+commands = commands or { }
+
+local timer
+
+function commands.resettimer()
+    statistics.resettiming(timer)
+    statistics.starttiming(timer)
+end
+
+function commands.elapsedtime()
+    statistics.stoptiming(timer)
+    tex.sprint(statistics.elapsedtime(timer))
+end
+
+commands.resettimer()
 
 
 end -- of closure
@@ -4755,8 +4888,8 @@ suffixes['lua'] = { 'lua', 'luc', 'tma', 'tmc' }
 
 alternatives['map files']            = 'map'
 alternatives['enc files']            = 'enc'
-alternatives['cid files']            = 'cid'
-alternatives['fea files']            = 'fea'
+alternatives['cid maps']             = 'cid' -- great, why no cid files
+alternatives['font feature files']   = 'fea' -- and fea files here
 alternatives['opentype fonts']       = 'otf'
 alternatives['truetype fonts']       = 'ttf'
 alternatives['truetype collections'] = 'ttc'
@@ -4899,8 +5032,10 @@ local function check_configuration() -- not yet ok, no time for debugging now
         -- bad luck
     end
     fix("LUAINPUTS"   , ".;$TEXINPUTS;$TEXMFSCRIPTS") -- no progname, hm
-    fix("FONTFEATURES", ".;$TEXMF/fonts/fea//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
-    fix("FONTCIDMAPS" , ".;$TEXMF/fonts/cid//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    -- this will go away some day
+    fix("FONTFEATURES", ".;$TEXMF/fonts/{data,fea}//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    fix("FONTCIDMAPS" , ".;$TEXMF/fonts/{data,cid}//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    --
     fix("LUATEXLIBS"  , ".;$TEXMF/luatex/lua//")
 end
 
@@ -5290,7 +5425,7 @@ function resolvers.load_cnf()
     else
         instance.rootpath = instance.cnffiles[1]
         for k,fname in ipairs(instance.cnffiles) do
-            instance.cnffiles[k] = file.collapse_path(gsub(fname,"\\",'/'))
+            instance.cnffiles[k] = file.collapse_path(fname)
         end
         for i=1,3 do
             instance.rootpath = file.dirname(instance.rootpath)
@@ -5319,7 +5454,7 @@ function resolvers.load_lua()
     else
         instance.rootpath = instance.luafiles[1]
         for k,fname in ipairs(instance.luafiles) do
-            instance.luafiles[k] = file.collapse_path(gsub(fname,"\\",'/'))
+            instance.luafiles[k] = file.collapse_path(fname)
         end
         for i=1,3 do
             instance.rootpath = file.dirname(instance.rootpath)
@@ -5444,7 +5579,7 @@ local weird = lpeg.P(".")^1 + lpeg.anywhere(lpeg.S("~`!#$%^&*()={}[]:;\"\'||<>,?
 
 --~ local l_forbidden = lpeg.S("~`!#$%^&*()={}[]:;\"\'||\\/<>,?\n\r\t")
 --~ local l_confusing = lpeg.P(" ")
---~ local l_character = lpeg.utf8
+--~ local l_character = lpeg.patterns.utf8
 --~ local l_dangerous = lpeg.P(".")
 
 --~ local l_normal = (l_character - l_forbidden - l_confusing - l_dangerous) * (l_character - l_forbidden - l_confusing^2)^0 * lpeg.P(-1)
@@ -6184,8 +6319,7 @@ end
 local function collect_instance_files(filename,collected) -- todo : plugin (scanners, checkers etc)
     local result = collected or { }
     local stamp  = nil
-    filename = file.collapse_path(filename)  -- elsewhere
-    filename = file.collapse_path(gsub(filename,"\\","/")) -- elsewhere
+    filename = file.collapse_path(filename)
     -- speed up / beware: format problem
     if instance.remember then
         stamp = filename .. "--" .. instance.engine .. "--" .. instance.progname .. "--" .. instance.format
@@ -6666,12 +6800,13 @@ end
 function table.sequenced(t,sep) -- temp here
     local s = { }
     for k, v in pairs(t) do -- pairs?
-        s[#s+1] = k .. "=" .. v
+        s[#s+1] = k .. "=" .. tostring(v)
     end
     return concat(s, sep or " | ")
 end
 
 function resolvers.methodhandler(what, filename, filetype) -- ...
+    filename = file.collapse_path(filename)
     local specification = (type(filename) == "string" and resolvers.splitmethod(filename)) or filename -- no or { }, let it bomb
     local scheme = specification.scheme
     if resolvers[what][scheme] then
diff --git a/scripts/context/stubs/unix/mtxrun b/scripts/context/stubs/unix/mtxrun
index 8a2d7a123..ef7eda9b0 100755
--- a/scripts/context/stubs/unix/mtxrun
+++ b/scripts/context/stubs/unix/mtxrun
@@ -347,6 +347,8 @@ if not modules then modules = { } end modules ['l-lpeg'] = {
 
 lpeg = require("lpeg")
 
+lpeg.patterns = lpeg.patterns or { } -- so that we can share
+
 local P, R, S, Ct, C, Cs, Cc = lpeg.P, lpeg.R, lpeg.S, lpeg.Ct, lpeg.C, lpeg.Cs, lpeg.Cc
 local match = lpeg.match
 
@@ -497,11 +499,9 @@ end
 --~
 --~ local decode_pattern = lpeg.Ct(utf8^0) * -1
 
-
 local cont = R("\128\191")   -- continuation byte
 
-lpeg.utf8 = R("\0\127") + R("\194\223") * cont + R("\224\239") * cont * cont + R("\240\244") * cont * cont * cont
-
+lpeg.patterns.utf8 = R("\0\127") + R("\194\223") * cont + R("\224\239") * cont * cont + R("\240\244") * cont * cont * cont
 
 
 end -- of closure
@@ -1952,6 +1952,21 @@ elseif name == "freebsd" then
         return platform
     end
 
+elseif name == "kfreebsd" then
+
+    function os.resolvers.platform(t,k)
+        -- we sometims have HOSTTYPE set so let's check that first
+        local platform, architecture = "", os.getenv("HOSTTYPE") or os.resultof("uname -m") or ""
+        if find(architecture,"x86_64") then
+            platform = "kfreebsd-64"
+        else
+            platform = "kfreebsd-i386"
+        end
+        os.setenv("MTX_PLATFORM",platform)
+        os.platform = platform
+        return platform
+    end
+
 else
 
     -- platform = "linux"
@@ -2021,7 +2036,7 @@ if not modules then modules = { } end modules ['l-file'] = {
 file = file or { }
 
 local concat = table.concat
-local find, gmatch, match, gsub, sub = string.find, string.gmatch, string.match, string.gsub, string.sub
+local find, gmatch, match, gsub, sub, char = string.find, string.gmatch, string.match, string.gsub, string.sub, string.char
 local lpegmatch = lpeg.match
 
 function file.removesuffix(filename)
@@ -2058,14 +2073,33 @@ end
 
 file.suffix = file.extname
 
---~ print(file.join("x/","/y"))
---~ print(file.join("http://","/y"))
---~ print(file.join("http://a","/y"))
---~ print(file.join("http:///a","/y"))
---~ print(file.join("//nas-1","/y"))
+--~ function file.join(...)
+--~     local pth = concat({...},"/")
+--~     pth = gsub(pth,"\\","/")
+--~     local a, b = match(pth,"^(.*://)(.*)$")
+--~     if a and b then
+--~         return a .. gsub(b,"//+","/")
+--~     end
+--~     a, b = match(pth,"^(//)(.*)$")
+--~     if a and b then
+--~         return a .. gsub(b,"//+","/")
+--~     end
+--~     return (gsub(pth,"//+","/"))
+--~ end
+
+local trick_1 = char(1)
+local trick_2 = "^" .. trick_1 .. "/+"
 
 function file.join(...)
-    local pth = concat({...},"/")
+    local lst = { ... }
+    local a, b = lst[1], lst[2]
+    if a == "" then
+        lst[1] = trick_1
+    elseif b and find(a,"^/+$") and find(b,"^/") then
+        lst[1] = ""
+        lst[2] = gsub(b,"^/+","")
+    end
+    local pth = concat(lst,"/")
     pth = gsub(pth,"\\","/")
     local a, b = match(pth,"^(.*://)(.*)$")
     if a and b then
@@ -2075,9 +2109,20 @@ function file.join(...)
     if a and b then
         return a .. gsub(b,"//+","/")
     end
+    pth = gsub(pth,trick_2,"")
     return (gsub(pth,"//+","/"))
 end
 
+--~ print(file.join("//","/y"))
+--~ print(file.join("/","/y"))
+--~ print(file.join("","/y"))
+--~ print(file.join("/x/","/y"))
+--~ print(file.join("x/","/y"))
+--~ print(file.join("http://","/y"))
+--~ print(file.join("http://a","/y"))
+--~ print(file.join("http:///a","/y"))
+--~ print(file.join("//nas-1","/y"))
+
 function file.iswritable(name)
     local a = lfs.attributes(name) or lfs.attributes(file.dirname(name,"."))
     return a and sub(a.permissions,2,2) == "w"
@@ -2116,16 +2161,22 @@ function file.join_path(tab)
     return concat(tab,io.pathseparator) -- can have trailing //
 end
 
+-- we can hash them weakly
+
 function file.collapse_path(str)
-    str = gsub(str,"/%./","/")
-    local n, m = 1, 1
-    while n > 0 or m > 0 do
-        str, n = gsub(str,"[^/%.]+/%.%.$","")
-        str, m = gsub(str,"[^/%.]+/%.%./","")
-    end
-    str = gsub(str,"([^/])/$","%1")
-    str = gsub(str,"^%./","")
-    str = gsub(str,"/%.$","")
+    str = gsub(str,"\\","/")
+    if find(str,"/") then
+        str = gsub(str,"^%./",(gsub(lfs.currentdir(),"\\","/")) .. "/") -- ./xx in qualified
+        str = gsub(str,"/%./","/")
+        local n, m = 1, 1
+        while n > 0 or m > 0 do
+            str, n = gsub(str,"[^/%.]+/%.%.$","")
+            str, m = gsub(str,"[^/%.]+/%.%./","")
+        end
+        str = gsub(str,"([^/])/$","%1")
+    --  str = gsub(str,"^%./","") -- ./xx in qualified
+        str = gsub(str,"/%.$","")
+    end
     if str == "" then str = "." end
     return str
 end
@@ -2824,7 +2875,7 @@ else
 --~         print(dir.mkdirs("///a/b/c"))
 --~         print(dir.mkdirs("a/bbb//ccc/"))
 
-    function dir.expand_name(str)
+    function dir.expand_name(str) -- will be merged with cleanpath and collapsepath
         if not find(str,"^/") then
             str = lfs.currentdir() .. "/" .. str
         end
@@ -3340,6 +3391,8 @@ local stripper = lpeg.Cs((number + 1)^0)
 --~ lpegmatch(stripper,str)
 --~ print(#str, os.clock()-ts, lpegmatch(stripper,sample))
 
+lpeg.patterns.strip_zeros = stripper
+
 function aux.strip_zeros(str)
     return lpegmatch(stripper,str)
 end
@@ -3626,14 +3679,14 @@ end
 function setters.enable(t,what)
     local e = t.enable
     t.enable, t.done = enable, { }
-    enable(t,string.simpleesc(what))
+    enable(t,string.simpleesc(tostring(what)))
     t.enable, t.done = e, { }
 end
 
 function setters.disable(t,what)
     local e = t.disable
     t.disable, t.done = disable, { }
-    disable(t,string.simpleesc(what))
+    disable(t,string.simpleesc(tostring(what)))
     t.disable, t.done = e, { }
 end
 
@@ -3720,6 +3773,13 @@ function experiments.disable(...)
     d(...)
 end
 
+-- a useful example
+
+directives.register("system.nostatistics", function(v)
+    statistics.enable = not v
+end)
+
+
 
 end -- of closure
 
@@ -3995,9 +4055,9 @@ local function attribute_specification_error(str)
     return str
 end
 
-function xml.unknown_dec_entity_format(str) return format("&%s;",  str) end
+function xml.unknown_dec_entity_format(str) return (str == "" and "&error;") or format("&%s;",str) end
 function xml.unknown_hex_entity_format(str) return format("&#x%s;",str) end
-function xml.unknown_any_entity_format(str) return format("&%s;",  str) end
+function xml.unknown_any_entity_format(str) return format("&#x%s;",str) end
 
 local function handle_hex_entity(str)
     local h = hcache[str]
@@ -4111,7 +4171,11 @@ local function handle_any_entity(str)
                     if trace_entities then
                         logs.report("xml","keeping entity &%s;",str)
                     end
-                    a = "&" .. str .. ";"
+                    if str == "" then
+                        a = "&error;"
+                    else
+                        a = "&" .. str .. ";"
+                    end
                 end
             end
             acache[str] = a
@@ -4132,6 +4196,9 @@ local function handle_any_entity(str)
             if a then
                 -- one of the predefined
                 acache[str] = a
+            elseif str == "" then
+                a = "&error;"
+                acache[str] = a
             else
                 a = "&" .. str .. ";"
                 acache[str] = a
@@ -4460,7 +4527,7 @@ function xml.checkbom(root) -- can be made faster
         local dt, found = root.dt, false
         for k=1,#dt do
             local v = dt[k]
-            if type(v) == "table" and v.special and v.tg == "@pi" and find(v.dt,"xml.*version=") then
+            if type(v) == "table" and v.special and v.tg == "@pi@" and find(v.dt[1],"xml.*version=") then
                 found = true
                 break
             end
@@ -4842,6 +4909,8 @@ function xml.assign(dt,k,root)
     end
 end
 
+-- the following helpers may move
+
 --[[ldx--
 <p>The next helper assigns a tree (or string). Usage:</p>
 <typing>
@@ -4860,6 +4929,22 @@ function xml.tocdata(e,wrapper)
     e.dt = { t }
 end
 
+function xml.makestandalone(root)
+    if root.ri then
+        local dt = root.dt
+        for k=1,#dt do
+            local v = dt[k]
+            if type(v) == "table" and v.special and v.tg == "@pi@" then
+                local txt = v.dt[1]
+                if find(txt,"xml.*version=") then
+                    v.dt[1] = txt .. " standalone='yes'"
+                    break
+                end
+            end
+        end
+    end
+end
+
 
 end -- of closure
 
@@ -5476,8 +5561,13 @@ local register_initial_child           = { kind = "axis", axis = "initial-child"
 
 local register_all_nodes               = { kind = "nodes", nodetest = true, nodes = { true, false, false } }
 
+local skip = { }
+
 local function errorrunner_e(str,cnv)
-    logs.report("lpath","error in expression: %s => %s",str,cnv)
+    if not skip[str] then
+        logs.report("lpath","error in expression: %s => %s",str,cnv)
+        skip[str] = cnv or str
+    end
     return false
 end
 local function errorrunner_f(str,arg)
@@ -7287,6 +7377,14 @@ function statistics.hastimer(instance)
     return instance and instance.starttime
 end
 
+function statistics.resettiming(instance)
+    if not instance then
+        notimer = { timing = 0, loadtime = 0 }
+    else
+        instance.timing, instance.loadtime = 0, 0
+    end
+end
+
 function statistics.starttiming(instance)
     if not instance then
         notimer = { }
@@ -7346,6 +7444,12 @@ function statistics.elapsedindeed(instance)
     return t > statistics.threshold
 end
 
+function statistics.elapsedseconds(instance,rest) -- returns nil if 0 seconds
+    if statistics.elapsedindeed(instance) then
+        return format("%s seconds %s", statistics.elapsedtime(instance),rest or "")
+    end
+end
+
 -- general function
 
 function statistics.register(tag,fnc)
@@ -7424,6 +7528,23 @@ function statistics.timed(action,report)
     report("total runtime: %s",statistics.elapsedtime(timer))
 end
 
+-- where, not really the best spot for this:
+
+commands = commands or { }
+
+local timer
+
+function commands.resettimer()
+    statistics.resettiming(timer)
+    statistics.starttiming(timer)
+end
+
+function commands.elapsedtime()
+    statistics.stoptiming(timer)
+    tex.sprint(statistics.elapsedtime(timer))
+end
+
+commands.resettimer()
 
 
 end -- of closure
@@ -7861,8 +7982,8 @@ suffixes['lua'] = { 'lua', 'luc', 'tma', 'tmc' }
 
 alternatives['map files']            = 'map'
 alternatives['enc files']            = 'enc'
-alternatives['cid files']            = 'cid'
-alternatives['fea files']            = 'fea'
+alternatives['cid maps']             = 'cid' -- great, why no cid files
+alternatives['font feature files']   = 'fea' -- and fea files here
 alternatives['opentype fonts']       = 'otf'
 alternatives['truetype fonts']       = 'ttf'
 alternatives['truetype collections'] = 'ttc'
@@ -8005,8 +8126,10 @@ local function check_configuration() -- not yet ok, no time for debugging now
         -- bad luck
     end
     fix("LUAINPUTS"   , ".;$TEXINPUTS;$TEXMFSCRIPTS") -- no progname, hm
-    fix("FONTFEATURES", ".;$TEXMF/fonts/fea//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
-    fix("FONTCIDMAPS" , ".;$TEXMF/fonts/cid//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    -- this will go away some day
+    fix("FONTFEATURES", ".;$TEXMF/fonts/{data,fea}//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    fix("FONTCIDMAPS" , ".;$TEXMF/fonts/{data,cid}//;$OPENTYPEFONTS;$TTFONTS;$T1FONTS;$AFMFONTS")
+    --
     fix("LUATEXLIBS"  , ".;$TEXMF/luatex/lua//")
 end
 
@@ -8396,7 +8519,7 @@ function resolvers.load_cnf()
     else
         instance.rootpath = instance.cnffiles[1]
         for k,fname in ipairs(instance.cnffiles) do
-            instance.cnffiles[k] = file.collapse_path(gsub(fname,"\\",'/'))
+            instance.cnffiles[k] = file.collapse_path(fname)
         end
         for i=1,3 do
             instance.rootpath = file.dirname(instance.rootpath)
@@ -8425,7 +8548,7 @@ function resolvers.load_lua()
     else
         instance.rootpath = instance.luafiles[1]
         for k,fname in ipairs(instance.luafiles) do
-            instance.luafiles[k] = file.collapse_path(gsub(fname,"\\",'/'))
+            instance.luafiles[k] = file.collapse_path(fname)
         end
         for i=1,3 do
             instance.rootpath = file.dirname(instance.rootpath)
@@ -8550,7 +8673,7 @@ local weird = lpeg.P(".")^1 + lpeg.anywhere(lpeg.S("~`!#$%^&*()={}[]:;\"\'||<>,?
 
 --~ local l_forbidden = lpeg.S("~`!#$%^&*()={}[]:;\"\'||\\/<>,?\n\r\t")
 --~ local l_confusing = lpeg.P(" ")
---~ local l_character = lpeg.utf8
+--~ local l_character = lpeg.patterns.utf8
 --~ local l_dangerous = lpeg.P(".")
 
 --~ local l_normal = (l_character - l_forbidden - l_confusing - l_dangerous) * (l_character - l_forbidden - l_confusing^2)^0 * lpeg.P(-1)
@@ -9290,8 +9413,7 @@ end
 local function collect_instance_files(filename,collected) -- todo : plugin (scanners, checkers etc)
     local result = collected or { }
     local stamp  = nil
-    filename = file.collapse_path(filename)  -- elsewhere
-    filename = file.collapse_path(gsub(filename,"\\","/")) -- elsewhere
+    filename = file.collapse_path(filename)
     -- speed up / beware: format problem
     if instance.remember then
         stamp = filename .. "--" .. instance.engine .. "--" .. instance.progname .. "--" .. instance.format
@@ -9772,12 +9894,13 @@ end
 function table.sequenced(t,sep) -- temp here
     local s = { }
     for k, v in pairs(t) do -- pairs?
-        s[#s+1] = k .. "=" .. v
+        s[#s+1] = k .. "=" .. tostring(v)
     end
     return concat(s, sep or " | ")
 end
 
 function resolvers.methodhandler(what, filename, filetype) -- ...
+    filename = file.collapse_path(filename)
     local specification = (type(filename) == "string" and resolvers.splitmethod(filename)) or filename -- no or { }, let it bomb
     local scheme = specification.scheme
     if resolvers[what][scheme] then