beta 2013.04.17 17:29

23 files changed, 1336 insertions, 918 deletions

diff --git a/scripts/context/lua/mtxlibs.lua b/scripts/context/lua/mtxlibs.lua
index 60889acde..a34ba139a 100644
--- a/scripts/context/lua/mtxlibs.lua
+++ b/scripts/context/lua/mtxlibs.lua
@@ -68,6 +68,7 @@ local owntree = ownpath
 local ownlibs = {
 
     "l-lua.lua",
+    "l-package.lua",
     "l-lpeg.lua",
     "l-function.lua",
     "l-string.lua",
diff --git a/scripts/context/lua/mtxrun.lua b/scripts/context/lua/mtxrun.lua
index ae08dc556..7f1464fbc 100644
--- a/scripts/context/lua/mtxrun.lua
+++ b/scripts/context/lua/mtxrun.lua
@@ -56,7 +56,7 @@ do -- create closure to overcome 200 locals limit
 
 package.loaded["l-lua"] = package.loaded["l-lua"] or true
 
--- original size: 10352, stripped down to: 5955
+-- original size: 3123, stripped down to: 1694
 
 if not modules then modules={} end modules ['l-lua']={
   version=1.001,
@@ -136,51 +136,108 @@ function optionalrequire(...)
     return result
   end
 end
+
+
+end -- of closure
+
+do -- create closure to overcome 200 locals limit
+
+package.loaded["l-package"] = package.loaded["l-package"] or true
+
+-- original size: 9641, stripped down to: 7101
+
+if not modules then modules={} end modules ['l-package']={
+  version=1.001,
+  comment="companion to luat-lib.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
+}
 local type=type
 local gsub,format=string.gsub,string.format
+local P,S,Cs,lpegmatch=lpeg.P,lpeg.S,lpeg.Cs,lpeg.match
 local package=package
 local searchers=package.searchers or package.loaders
-local libpaths=nil
-local clibpaths=nil
-local libhash={}
-local clibhash={}
-local libextras={}
-local clibextras={}
 local filejoin=file and file.join    or function(path,name)  return path.."/"..name end
 local isreadable=file and file.is_readable or function(name)    local f=io.open(name) if f then f:close() return true end end
 local addsuffix=file and file.addsuffix  or function(name,suffix) return name.."."..suffix end
 local function cleanpath(path) 
   return path
 end
+local pattern=Cs((((1-S("\\/"))^0*(S("\\/")^1/"/"))^0*(P(".")^1/"/"+P(1))^1)*-1)
+local function lualibfile(name)
+  return lpegmatch(pattern,name) or name
+end
 local helpers=package.helpers or {
-  libpaths=function() return {} end,
-  clibpaths=function() return {} end,
   cleanpath=cleanpath,
+  lualibfile=lualibfile,
   trace=false,
   report=function(...) print(format(...)) end,
+  builtin={
+    ["preload table"]=package.searchers[1],
+    ["path specification"]=package.searchers[2],
+    ["cpath specification"]=package.searchers[3],
+    ["all in one fallback"]=package.searchers[4],
+  },
+  methods={},
+  sequence={
+    "already loaded",
+    "preload table",
+    "lua extra list",
+    "lib extra list",
+    "path specification",
+    "cpath specification",
+    "all in one fallback",
+    "not loaded",
+  }
 }
 package.helpers=helpers
-local function getlibpaths()
-  return libpaths or helpers.libpaths(libhash)
+local methods=helpers.methods
+local builtin=helpers.builtin
+local extraluapaths={}
+local extralibpaths={}
+local luapaths=nil 
+local libpaths=nil 
+local function getextraluapaths()
+  return extraluapaths
+end
+local function getextralibpaths()
+  return extralibpaths
+end
+local function getluapaths()
+  luapaths=luapaths or file.splitpath(package.path,";")
+  return luapaths
 end
-local function getclibpaths()
-  return clibpaths or helpers.clibpaths(clibhash)
+local function getlibpaths()
+  libpaths=libpaths or file.splitpath(package.cpath,";")
+  return libpaths
 end
+package.luapaths=getluapaths
 package.libpaths=getlibpaths
-package.clibpaths=getclibpaths
-local function addpath(what,paths,extras,hash,...)
+package.extraluapaths=getextraluapaths
+package.extralibpaths=getextralibpaths
+local hashes={
+  lua={},
+  lib={},
+}
+local function registerpath(tag,what,target,...)
   local pathlist={... }
   local cleanpath=helpers.cleanpath
   local trace=helpers.trace
   local report=helpers.report
+  local hash=hashes[what]
   local function add(path)
     local path=cleanpath(path)
     if not hash[path] then
+      target[#target+1]=path
+      hash[path]=true
+      if trace then
+        report("registered %s path %s: %s",tag,#target,path)
+      end
+    else
       if trace then
-        report("extra %s path: %s",what,path)
+        report("duplicate %s path: %s",tag,path)
       end
-      paths [#paths+1]=path
-      extras[#extras+1]=path
     end
   end
   for p=1,#pathlist do
@@ -193,21 +250,15 @@ local function addpath(what,paths,extras,hash,...)
       add(path)
     end
   end
-  return paths,extras
+  return paths
 end
-function package.extralibpath(...)
-   libpaths,libextras=addpath("lua",getlibpaths(),libextras,libhash,...)
-end
-function package.extraclibpath(...)
-  clibpaths,clibextras=addpath("lib",getclibpaths(),clibextras,clibhash,...)
+helpers.registerpath=registerpath
+function package.extraluapath(...)
+  registerpath("extra lua","lua",extraluapaths,...)
 end
-if not searchers[-2] then
-  searchers[-2]=searchers[2]
-end
-searchers[2]=function(name)
-  return helpers.loaded(name)
+function package.extralibpath(...)
+  registerpath("extra lib","lib",extralibpaths,...)
 end
-searchers[3]=nil 
 local function loadedaslib(resolved,rawname)
   local init="luaopen_"..gsub(rawname,"%.","_")
   if helpers.trace then
@@ -215,12 +266,7 @@ local function loadedaslib(resolved,rawname)
   end
   return package.loadlib(resolved,init)
 end
-local function loadedbylua(name)
-  if helpers.trace then
-    helpers.report("locating '%s' using normal loader",name)
-  end
-  return true,searchers[-2](name) 
-end
+helpers.loadedaslib=loadedaslib
 local function loadedbypath(name,rawname,paths,islib,what)
   local trace=helpers.trace
   local report=helpers.report
@@ -231,63 +277,135 @@ local function loadedbypath(name,rawname,paths,islib,what)
     local path=paths[p]
     local resolved=filejoin(path,name)
     if trace then 
-      report("checking for '%s' using '%s' path '%s'",name,what,path)
+      report("checking '%s' using '%s' path '%s'",name,what,path)
     end
     if isreadable(resolved) then
       if trace then
-        report("lib '%s' located on '%s'",name,resolved)
+        report("'%s' located on '%s'",name,resolved)
       end
+      local result=nil
       if islib then
-        return true,loadedaslib(resolved,rawname)
+        result=loadedaslib(resolved,rawname)
       else
-        return true,loadfile(resolved)
+        result=loadfile(resolved)
+      end
+      if result then
+        result()
       end
+      return true,result
     end
   end
 end
-local function notloaded(name)
-  if helpers.trace then
-    helpers.report("unable to locate library '%s'",name)
+helpers.loadedbypath=loadedbypath
+methods["already loaded"]=function(name)
+  local result=package.loaded[name]
+  if result then
+    return true,result
   end
 end
-helpers.loadedaslib=loadedaslib
-helpers.loadedbylua=loadedbylua
-helpers.loadedbypath=loadedbypath
-helpers.notloaded=notloaded
-function helpers.loaded(name)
-  local thename=gsub(name,"%.","/")
+methods["preload table"]=function(name)
+  local result=builtin["preload table"](name)
+  if type(result)=="function" then
+    return true,result
+  end
+end
+methods["lua extra list"]=function(name)
+  local thename=lualibfile(name)
   local luaname=addsuffix(thename,"lua")
-  local libname=addsuffix(thename,os.libsuffix or "so") 
-  local libpaths=getlibpaths()
-  local clibpaths=getclibpaths()
-  local done,result=loadedbypath(luaname,name,libpaths,false,"lua")
+  local luapaths=getextraluapaths()
+  local done,result=loadedbypath(luaname,name,luapaths,false,"lua")
   if done then
-    return result
+    return true,result
   end
-  local done,result=loadedbypath(luaname,name,clibpaths,false,"lua")
+end
+methods["lib extra list"]=function(name)
+  local thename=lualibfile(name)
+  local libname=addsuffix(thename,os.libsuffix)
+  local libpaths=getextralibpaths()
+  local done,result=loadedbypath(libname,name,libpaths,true,"lib")
   if done then
-    return result
+    return true,result
   end
-  local done,result=loadedbypath(libname,name,clibpaths,true,"lib")
-  if done then
-    return result
+end
+local shown=false
+methods["path specification"]=function(name)
+  if not shown and helpers.trace then
+    local luapaths=getluapaths() 
+    if #luapaths>0 then
+      helpers.report("using %s built in lua paths",#luapaths)
+    else
+      helpers.report("no built in lua paths defined")
+    end
+    shown=true
   end
-  local done,result=loadedbylua(name)
-  if done then
-    return result
+  local result=builtin["path specification"](name)
+  if type(result)=="function" then
+    return true,result()
+  end
+end
+local shown=false
+methods["cpath specification"]=function(name)
+  if not shown and helpers.trace then
+    local libpaths=getlibpaths() 
+    if #libpaths>0 then
+      helpers.report("using %s built in lib paths",#libpaths)
+    else
+      helpers.report("no built in lib paths defined")
+    end
+    shown=true
+  end
+  local result=builtin["cpath specification"](name)
+  if type(result)=="function" then
+    return true,result()
+  end
+end
+methods["all in one fallback"]=function(name)
+  local result=builtin["all in one fallback"](name)
+  if type(result)=="function" then
+    return true,result()
+  end
+end
+methods["not loaded"]=function(name)
+  if helpers.trace then
+    helpers.report("unable to locate '%s'",name)
+  end
+end
+function helpers.loaded(name)
+  local sequence=helpers.sequence
+  for i=1,#sequence do
+    local step=sequence[i]
+    if helpers.trace then
+      helpers.report("locating '%s' using method '%s'",name,step)
+    end
+    local done,result=methods[step](name)
+    if done then
+      if helpers.trace then
+        helpers.report("'%s' located via method '%s' returns '%s'",name,step,type(result))
+      end
+      if result then
+        package.loaded[name]=result
+      end
+      return result
+    end
   end
-  return notloaded(name)
+  return nil 
 end
 function helpers.unload(name)
   if helpers.trace then
     if package.loaded[name] then
-      helpers.report("unloading library '%s', %s",name,"done")
+      helpers.report("unloading '%s', %s",name,"done")
     else
-      helpers.report("unloading library '%s', %s",name,"not loaded")
+      helpers.report("unloading '%s', %s",name,"not loaded")
     end
   end
-  package.loaded[name]=nil
+  package.loaded[name]=nil 
 end
+searchers[1]=nil
+searchers[2]=nil
+searchers[3]=nil
+searchers[4]=nil
+helpers.savedrequire=helpers.savedrequire or require
+require=helpers.loaded
 
 
 end -- of closure
@@ -15113,7 +15231,7 @@ do -- create closure to overcome 200 locals limit
 
 package.loaded["data-lua"] = package.loaded["data-lua"] or true
 
--- original size: 4861, stripped down to: 3693
+-- original size: 5080, stripped down to: 3874
 
 if not modules then modules={} end modules ['data-lua']={
   version=1.001,
@@ -15127,52 +15245,56 @@ local gsub=string.gsub
 local concat=table.concat
 local addsuffix=file.addsuffix
 local P,S,Cs,lpegmatch=lpeg.P,lpeg.S,lpeg.Cs,lpeg.match
-local libsuffixes={ 'tex','lua' }
-local clibsuffixes={ 'lib' }
-local libformats={ 'TEXINPUTS','LUAINPUTS' }
-local clibformats={ 'CLUAINPUTS' }
-local helpers=package.helpers
+local luasuffixes={ 'tex','lua' }
+local libsuffixes={ 'lib' }
+local luaformats={ 'TEXINPUTS','LUAINPUTS' }
+local libformats={ 'CLUAINPUTS' }
+local helpers=package.helpers or {}
+local methods=helpers.methods or {}
 trackers.register("resolvers.libraries",function(v) helpers.trace=v end)
 trackers.register("resolvers.locating",function(v) helpers.trace=v end)
 helpers.report=logs.reporter("resolvers","libraries")
+helpers.sequence={
+  "already loaded",
+  "preload table",
+  "lua variable format",
+  "lib variable format",
+  "lua extra list",
+  "lib extra list",
+  "path specification",
+  "cpath specification",
+  "all in one fallback",
+  "not loaded",
+}
 local pattern=Cs(P("!")^0/""*(P("/")*P(-1)/"/"+P("/")^1/"/"+1)^0)
-local function cleanpath(path) 
+function helpers.cleanpath(path) 
   return resolvers.resolve(lpegmatch(pattern,path))
 end
-helpers.cleanpath=cleanpath
 local loadedaslib=helpers.loadedaslib
-local loadedbylua=helpers.loadedbylua
 local loadedbypath=helpers.loadedbypath
-local notloaded=helpers.notloaded
-local getlibpaths=package.libpaths
-local getclibpaths=package.clibpaths
-function helpers.libpaths(libhash)
-  local libpaths={}
-  for i=1,#libformats do
-    local paths=resolvers.expandedpathlistfromvariable(libformats[i])
-    for i=1,#paths do
-      local path=cleanpath(paths[i])
-      if not libhash[path] then
-        libpaths[#libpaths+1]=path
-        libhash[path]=true
-      end
+local getextraluapaths=package.extraluapaths
+local getextralibpaths=package.extralibpaths
+local registerpath=helpers.registerpath
+local lualibfile=helpers.lualibfile
+local luaformatpaths
+local libformatpaths
+local function getluaformatpaths()
+  if not luaformatpaths then
+    luaformatpaths={}
+    for i=1,#luaformats do
+      registerpath("lua format","lua",luaformatpaths,resolvers.expandedpathlistfromvariable(luaformats[i]))
     end
   end
-  return libpaths
+  return luaformatpaths
 end
-function helpers.clibpaths(clibhash)
-  local clibpaths={}
-  for i=1,#clibformats do
-    local paths=resolvers.expandedpathlistfromvariable(clibformats[i])
-    for i=1,#paths do
-      local path=cleanpath(paths[i])
-      if not clibhash[path] then
-        clibpaths[#clibpaths+1]=path
-        clibhash[path]=true
-      end
+local function getlibformatpaths()
+  if not libformatpaths then
+    libformatpaths={}
+    for i=1,#libformats do
+      registerpath("lib format","lib",libformatpaths,resolvers.expandedpathlistfromvariable(libformats[i]))
     end
   end
-  return clibpaths
+  return libformatpaths
 end
 local function loadedbyformat(name,rawname,suffixes,islib)
   local trace=helpers.trace
@@ -15190,51 +15312,54 @@ local function loadedbyformat(name,rawname,suffixes,islib)
       if trace then
         report("lib %a located on %a",name,resolved)
       end
+      local result=nil
       if islib then
-        return true,loadedaslib(resolved,rawname)
+        result=loadedaslib(resolved,rawname)
       else
-        return true,loadfile(resolved)
+        result=loadfile(resolved)
+      end
+      if result then
+        return true,result()
       end
     end
   end
 end
 helpers.loadedbyformat=loadedbyformat
-local pattern=Cs((((1-S("\\/"))^0*(S("\\/")^1/"/"))^0*(P(".")^1/"/"+P(1))^1)*-1)
-local function lualibfile(name)
-  return lpegmatch(pattern,name) or name
-end
-helpers.lualibfile=lualibfile
-function helpers.loaded(name)
+local shown=false
+methods["lua variable format"]=function(name)
+  if not shown and helpers.trace then
+    local luapaths=getluaformatpaths() 
+    if #luapaths>0 then
+      helpers.report("using %s lua format paths",#luapaths)
+    else
+      helpers.report("no lua format paths defined")
+    end
+    shown=true
+  end
   local thename=lualibfile(name)
   local luaname=addsuffix(thename,"lua")
-  local libname=addsuffix(thename,os.libsuffix)
-  local libpaths=getlibpaths()
-  local clibpaths=getclibpaths()
-  local done,result=loadedbyformat(luaname,name,libsuffixes,false)
+  local done,result=loadedbyformat(luaname,name,luasuffixes,false)
   if done then
-    return result
+    return true,result
   end
-  local done,result=loadedbyformat(libname,name,clibsuffixes,true)
-  if done then
-    return result
-  end
-  local done,result=loadedbypath(luaname,name,libpaths,false,"lua")
-  if done then
-    return result
-  end
-  local done,result=loadedbypath(luaname,name,clibpaths,false,"lua")
-  if done then
-    return result
-  end
-  local done,result=loadedbypath(libname,name,clibpaths,true,"lib")
-  if done then
-    return result
+end
+local shown=false
+methods["lib variable format"]=function(name)
+  if not shown and helpers.trace then
+    local libpaths=getlibformatpaths() 
+    if #libpaths>0 then
+      helpers.report("using %s lib format paths",#libpaths)
+    else
+      helpers.report("no lib format paths defined")
+    end
+    shown=true
   end
-  local done,result=loadedbylua(name)
+  local thename=lualibfile(name)
+  local libname=addsuffix(thename,os.libsuffix)
+  local done,result=loadedbyformat(libname,name,libsuffixes,true)
   if done then
-    return result
+    return true,result
   end
-  return notloaded(name)
 end
 resolvers.loadlualib=require
 
@@ -15445,7 +15570,7 @@ do -- create closure to overcome 200 locals limit
 
 package.loaded["util-lib"] = package.loaded["util-lib"] or true
 
--- original size: 10985, stripped down to: 5458
+-- original size: 11094, stripped down to: 5516
 
 if not modules then modules={} end modules ['util-lib']={
   version=1.001,
@@ -15462,16 +15587,17 @@ local report_swiglib=logs.reporter("swiglib")
 local trace_swiglib=false trackers.register("resolvers.swiglib",function(v) trace_swiglib=v end)
 local done=false
 local function requireswiglib(required,version)
+  local trace_swiglib=trace_swiglib or package.helpers.trace
   local library=loaded[required]
   if library==nil then
-    local required_full=gsub(required,"%.","/")
+    local required_full=gsub(required,"%.","/") 
     local required_path=pathpart(required_full)
     local required_base=nameonly(required_full)
     local required_name=required_base.."."..os.libsuffix
     local version=type(version)=="string" and version~="" and version or false
     local engine=environment.ownmain or false
     if trace_swiglib and not done then
-      local list=resolvers.expandedpathlistfromvariable("lib")
+      local list=resolvers.expandedpathlistfromvariable("lib") 
       for i=1,#list do
         report_swiglib("tds path %i: %s",i,list[i])
       end
@@ -15553,7 +15679,7 @@ local function requireswiglib(required,version)
     end
     if not found_library then
       if trace_swiglib then
-        report_swiglib("not found: %a",asked_library)
+        report_swiglib("not found: %a",required)
       end
       library=false
     else
@@ -15854,10 +15980,10 @@ end
 
 end -- of closure
 
--- used libraries    : l-lua.lua l-lpeg.lua l-function.lua l-string.lua l-table.lua l-io.lua l-number.lua l-set.lua l-os.lua l-file.lua l-md5.lua l-url.lua l-dir.lua l-boolean.lua l-unicode.lua l-math.lua util-str.lua util-tab.lua util-sto.lua util-prs.lua util-fmt.lua trac-set.lua trac-log.lua trac-inf.lua trac-pro.lua util-lua.lua util-deb.lua util-mrg.lua util-tpl.lua util-env.lua luat-env.lua lxml-tab.lua lxml-lpt.lua lxml-mis.lua lxml-aux.lua lxml-xml.lua trac-xml.lua data-ini.lua data-exp.lua data-env.lua data-tmp.lua data-met.lua data-res.lua data-pre.lua data-inp.lua data-out.lua data-fil.lua data-con.lua data-use.lua data-zip.lua data-tre.lua data-sch.lua data-lua.lua data-aux.lua data-tmf.lua data-lst.lua util-lib.lua luat-sta.lua luat-fmt.lua
+-- used libraries    : l-lua.lua l-package.lua l-lpeg.lua l-function.lua l-string.lua l-table.lua l-io.lua l-number.lua l-set.lua l-os.lua l-file.lua l-md5.lua l-url.lua l-dir.lua l-boolean.lua l-unicode.lua l-math.lua util-str.lua util-tab.lua util-sto.lua util-prs.lua util-fmt.lua trac-set.lua trac-log.lua trac-inf.lua trac-pro.lua util-lua.lua util-deb.lua util-mrg.lua util-tpl.lua util-env.lua luat-env.lua lxml-tab.lua lxml-lpt.lua lxml-mis.lua lxml-aux.lua lxml-xml.lua trac-xml.lua data-ini.lua data-exp.lua data-env.lua data-tmp.lua data-met.lua data-res.lua data-pre.lua data-inp.lua data-out.lua data-fil.lua data-con.lua data-use.lua data-zip.lua data-tre.lua data-sch.lua data-lua.lua data-aux.lua data-tmf.lua data-lst.lua util-lib.lua luat-sta.lua luat-fmt.lua
 -- skipped libraries : -
--- original bytes    : 662959
--- stripped bytes    : 243507
+-- original bytes    : 665699
+-- stripped bytes    : 243168
 
 -- end library merge
 
@@ -15881,6 +16007,7 @@ local owntree = environment and environment.ownpath or ownpath
 local ownlibs = { -- order can be made better
 
     'l-lua.lua',
+    'l-package.lua',
     'l-lpeg.lua',
     'l-function.lua',
     'l-string.lua',
diff --git a/scripts/context/stubs/mswin/mtxrun.lua b/scripts/context/stubs/mswin/mtxrun.lua
index ae08dc556..7f1464fbc 100644
--- a/scripts/context/stubs/mswin/mtxrun.lua
+++ b/scripts/context/stubs/mswin/mtxrun.lua
@@ -56,7 +56,7 @@ do -- create closure to overcome 200 locals limit
 
 package.loaded["l-lua"] = package.loaded["l-lua"] or true
 
--- original size: 10352, stripped down to: 5955
+-- original size: 3123, stripped down to: 1694
 
 if not modules then modules={} end modules ['l-lua']={
   version=1.001,
@@ -136,51 +136,108 @@ function optionalrequire(...)
     return result
   end
 end
+
+
+end -- of closure
+
+do -- create closure to overcome 200 locals limit
+
+package.loaded["l-package"] = package.loaded["l-package"] or true
+
+-- original size: 9641, stripped down to: 7101
+
+if not modules then modules={} end modules ['l-package']={
+  version=1.001,
+  comment="companion to luat-lib.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
+}
 local type=type
 local gsub,format=string.gsub,string.format
+local P,S,Cs,lpegmatch=lpeg.P,lpeg.S,lpeg.Cs,lpeg.match
 local package=package
 local searchers=package.searchers or package.loaders
-local libpaths=nil
-local clibpaths=nil
-local libhash={}
-local clibhash={}
-local libextras={}
-local clibextras={}
 local filejoin=file and file.join    or function(path,name)  return path.."/"..name end
 local isreadable=file and file.is_readable or function(name)    local f=io.open(name) if f then f:close() return true end end
 local addsuffix=file and file.addsuffix  or function(name,suffix) return name.."."..suffix end
 local function cleanpath(path) 
   return path
 end
+local pattern=Cs((((1-S("\\/"))^0*(S("\\/")^1/"/"))^0*(P(".")^1/"/"+P(1))^1)*-1)
+local function lualibfile(name)
+  return lpegmatch(pattern,name) or name
+end
 local helpers=package.helpers or {
-  libpaths=function() return {} end,
-  clibpaths=function() return {} end,
   cleanpath=cleanpath,
+  lualibfile=lualibfile,
   trace=false,
   report=function(...) print(format(...)) end,
+  builtin={
+    ["preload table"]=package.searchers[1],
+    ["path specification"]=package.searchers[2],
+    ["cpath specification"]=package.searchers[3],
+    ["all in one fallback"]=package.searchers[4],
+  },
+  methods={},
+  sequence={
+    "already loaded",
+    "preload table",
+    "lua extra list",
+    "lib extra list",
+    "path specification",
+    "cpath specification",
+    "all in one fallback",
+    "not loaded",
+  }
 }
 package.helpers=helpers
-local function getlibpaths()
-  return libpaths or helpers.libpaths(libhash)
+local methods=helpers.methods
+local builtin=helpers.builtin
+local extraluapaths={}
+local extralibpaths={}
+local luapaths=nil 
+local libpaths=nil 
+local function getextraluapaths()
+  return extraluapaths
+end
+local function getextralibpaths()
+  return extralibpaths
+end
+local function getluapaths()
+  luapaths=luapaths or file.splitpath(package.path,";")
+  return luapaths
 end
-local function getclibpaths()
-  return clibpaths or helpers.clibpaths(clibhash)
+local function getlibpaths()
+  libpaths=libpaths or file.splitpath(package.cpath,";")
+  return libpaths
 end
+package.luapaths=getluapaths
 package.libpaths=getlibpaths
-package.clibpaths=getclibpaths
-local function addpath(what,paths,extras,hash,...)
+package.extraluapaths=getextraluapaths
+package.extralibpaths=getextralibpaths
+local hashes={
+  lua={},
+  lib={},
+}
+local function registerpath(tag,what,target,...)
   local pathlist={... }
   local cleanpath=helpers.cleanpath
   local trace=helpers.trace
   local report=helpers.report
+  local hash=hashes[what]
   local function add(path)
     local path=cleanpath(path)
     if not hash[path] then
+      target[#target+1]=path
+      hash[path]=true
+      if trace then
+        report("registered %s path %s: %s",tag,#target,path)
+      end
+    else
       if trace then
-        report("extra %s path: %s",what,path)
+        report("duplicate %s path: %s",tag,path)
       end
-      paths [#paths+1]=path
-      extras[#extras+1]=path
     end
   end
   for p=1,#pathlist do
@@ -193,21 +250,15 @@ local function addpath(what,paths,extras,hash,...)
       add(path)
     end
   end
-  return paths,extras
+  return paths
 end
-function package.extralibpath(...)
-   libpaths,libextras=addpath("lua",getlibpaths(),libextras,libhash,...)
-end
-function package.extraclibpath(...)
-  clibpaths,clibextras=addpath("lib",getclibpaths(),clibextras,clibhash,...)
+helpers.registerpath=registerpath
+function package.extraluapath(...)
+  registerpath("extra lua","lua",extraluapaths,...)
 end
-if not searchers[-2] then
-  searchers[-2]=searchers[2]
-end
-searchers[2]=function(name)
-  return helpers.loaded(name)
+function package.extralibpath(...)
+  registerpath("extra lib","lib",extralibpaths,...)
 end
-searchers[3]=nil 
 local function loadedaslib(resolved,rawname)
   local init="luaopen_"..gsub(rawname,"%.","_")
   if helpers.trace then
@@ -215,12 +266,7 @@ local function loadedaslib(resolved,rawname)
   end
   return package.loadlib(resolved,init)
 end
-local function loadedbylua(name)
-  if helpers.trace then
-    helpers.report("locating '%s' using normal loader",name)
-  end
-  return true,searchers[-2](name) 
-end
+helpers.loadedaslib=loadedaslib
 local function loadedbypath(name,rawname,paths,islib,what)
   local trace=helpers.trace
   local report=helpers.report
@@ -231,63 +277,135 @@ local function loadedbypath(name,rawname,paths,islib,what)
     local path=paths[p]
     local resolved=filejoin(path,name)
     if trace then 
-      report("checking for '%s' using '%s' path '%s'",name,what,path)
+      report("checking '%s' using '%s' path '%s'",name,what,path)
     end
     if isreadable(resolved) then
       if trace then
-        report("lib '%s' located on '%s'",name,resolved)
+        report("'%s' located on '%s'",name,resolved)
       end
+      local result=nil
       if islib then
-        return true,loadedaslib(resolved,rawname)
+        result=loadedaslib(resolved,rawname)
       else
-        return true,loadfile(resolved)
+        result=loadfile(resolved)
+      end
+      if result then
+        result()
       end
+      return true,result
     end
   end
 end
-local function notloaded(name)
-  if helpers.trace then
-    helpers.report("unable to locate library '%s'",name)
+helpers.loadedbypath=loadedbypath
+methods["already loaded"]=function(name)
+  local result=package.loaded[name]
+  if result then
+    return true,result
   end
 end
-helpers.loadedaslib=loadedaslib
-helpers.loadedbylua=loadedbylua
-helpers.loadedbypath=loadedbypath
-helpers.notloaded=notloaded
-function helpers.loaded(name)
-  local thename=gsub(name,"%.","/")
+methods["preload table"]=function(name)
+  local result=builtin["preload table"](name)
+  if type(result)=="function" then
+    return true,result
+  end
+end
+methods["lua extra list"]=function(name)
+  local thename=lualibfile(name)
   local luaname=addsuffix(thename,"lua")
-  local libname=addsuffix(thename,os.libsuffix or "so") 
-  local libpaths=getlibpaths()
-  local clibpaths=getclibpaths()
-  local done,result=loadedbypath(luaname,name,libpaths,false,"lua")
+  local luapaths=getextraluapaths()
+  local done,result=loadedbypath(luaname,name,luapaths,false,"lua")
   if done then
-    return result
+    return true,result
   end
-  local done,result=loadedbypath(luaname,name,clibpaths,false,"lua")
+end
+methods["lib extra list"]=function(name)
+  local thename=lualibfile(name)
+  local libname=addsuffix(thename,os.libsuffix)
+  local libpaths=getextralibpaths()
+  local done,result=loadedbypath(libname,name,libpaths,true,"lib")
   if done then
-    return result
+    return true,result
   end
-  local done,result=loadedbypath(libname,name,clibpaths,true,"lib")
-  if done then
-    return result
+end
+local shown=false
+methods["path specification"]=function(name)
+  if not shown and helpers.trace then
+    local luapaths=getluapaths() 
+    if #luapaths>0 then
+      helpers.report("using %s built in lua paths",#luapaths)
+    else
+      helpers.report("no built in lua paths defined")
+    end
+    shown=true
   end
-  local done,result=loadedbylua(name)
-  if done then
-    return result
+  local result=builtin["path specification"](name)
+  if type(result)=="function" then
+    return true,result()
+  end
+end
+local shown=false
+methods["cpath specification"]=function(name)
+  if not shown and helpers.trace then
+    local libpaths=getlibpaths() 
+    if #libpaths>0 then
+      helpers.report("using %s built in lib paths",#libpaths)
+    else
+      helpers.report("no built in lib paths defined")
+    end
+    shown=true
+  end
+  local result=builtin["cpath specification"](name)
+  if type(result)=="function" then
+    return true,result()
+  end
+end
+methods["all in one fallback"]=function(name)
+  local result=builtin["all in one fallback"](name)
+  if type(result)=="function" then
+    return true,result()
+  end
+end
+methods["not loaded"]=function(name)
+  if helpers.trace then
+    helpers.report("unable to locate '%s'",name)
+  end
+end
+function helpers.loaded(name)
+  local sequence=helpers.sequence
+  for i=1,#sequence do
+    local step=sequence[i]
+    if helpers.trace then
+      helpers.report("locating '%s' using method '%s'",name,step)
+    end
+    local done,result=methods[step](name)
+    if done then
+      if helpers.trace then
+        helpers.report("'%s' located via method '%s' returns '%s'",name,step,type(result))
+      end
+      if result then
+        package.loaded[name]=result
+      end
+      return result
+    end
   end
-  return notloaded(name)
+  return nil 
 end
 function helpers.unload(name)
   if helpers.trace then
     if package.loaded[name] then
-      helpers.report("unloading library '%s', %s",name,"done")
+      helpers.report("unloading '%s', %s",name,"done")
     else
-      helpers.report("unloading library '%s', %s",name,"not loaded")
+      helpers.report("unloading '%s', %s",name,"not loaded")
     end
   end
-  package.loaded[name]=nil
+  package.loaded[name]=nil 
 end
+searchers[1]=nil
+searchers[2]=nil
+searchers[3]=nil
+searchers[4]=nil
+helpers.savedrequire=helpers.savedrequire or require
+require=helpers.loaded
 
 
 end -- of closure
@@ -15113,7 +15231,7 @@ do -- create closure to overcome 200 locals limit
 
 package.loaded["data-lua"] = package.loaded["data-lua"] or true
 
--- original size: 4861, stripped down to: 3693
+-- original size: 5080, stripped down to: 3874
 
 if not modules then modules={} end modules ['data-lua']={
   version=1.001,
@@ -15127,52 +15245,56 @@ local gsub=string.gsub
 local concat=table.concat
 local addsuffix=file.addsuffix
 local P,S,Cs,lpegmatch=lpeg.P,lpeg.S,lpeg.Cs,lpeg.match
-local libsuffixes={ 'tex','lua' }
-local clibsuffixes={ 'lib' }
-local libformats={ 'TEXINPUTS','LUAINPUTS' }
-local clibformats={ 'CLUAINPUTS' }
-local helpers=package.helpers
+local luasuffixes={ 'tex','lua' }
+local libsuffixes={ 'lib' }
+local luaformats={ 'TEXINPUTS','LUAINPUTS' }
+local libformats={ 'CLUAINPUTS' }
+local helpers=package.helpers or {}
+local methods=helpers.methods or {}
 trackers.register("resolvers.libraries",function(v) helpers.trace=v end)
 trackers.register("resolvers.locating",function(v) helpers.trace=v end)
 helpers.report=logs.reporter("resolvers","libraries")
+helpers.sequence={
+  "already loaded",
+  "preload table",
+  "lua variable format",
+  "lib variable format",
+  "lua extra list",
+  "lib extra list",
+  "path specification",
+  "cpath specification",
+  "all in one fallback",
+  "not loaded",
+}
 local pattern=Cs(P("!")^0/""*(P("/")*P(-1)/"/"+P("/")^1/"/"+1)^0)
-local function cleanpath(path) 
+function helpers.cleanpath(path) 
   return resolvers.resolve(lpegmatch(pattern,path))
 end
-helpers.cleanpath=cleanpath
 local loadedaslib=helpers.loadedaslib
-local loadedbylua=helpers.loadedbylua
 local loadedbypath=helpers.loadedbypath
-local notloaded=helpers.notloaded
-local getlibpaths=package.libpaths
-local getclibpaths=package.clibpaths
-function helpers.libpaths(libhash)
-  local libpaths={}
-  for i=1,#libformats do
-    local paths=resolvers.expandedpathlistfromvariable(libformats[i])
-    for i=1,#paths do
-      local path=cleanpath(paths[i])
-      if not libhash[path] then
-        libpaths[#libpaths+1]=path
-        libhash[path]=true
-      end
+local getextraluapaths=package.extraluapaths
+local getextralibpaths=package.extralibpaths
+local registerpath=helpers.registerpath
+local lualibfile=helpers.lualibfile
+local luaformatpaths
+local libformatpaths
+local function getluaformatpaths()
+  if not luaformatpaths then
+    luaformatpaths={}
+    for i=1,#luaformats do
+      registerpath("lua format","lua",luaformatpaths,resolvers.expandedpathlistfromvariable(luaformats[i]))
     end
   end
-  return libpaths
+  return luaformatpaths
 end
-function helpers.clibpaths(clibhash)
-  local clibpaths={}
-  for i=1,#clibformats do
-    local paths=resolvers.expandedpathlistfromvariable(clibformats[i])
-    for i=1,#paths do
-      local path=cleanpath(paths[i])
-      if not clibhash[path] then
-        clibpaths[#clibpaths+1]=path
-        clibhash[path]=true
-      end
+local function getlibformatpaths()
+  if not libformatpaths then
+    libformatpaths={}
+    for i=1,#libformats do
+      registerpath("lib format","lib",libformatpaths,resolvers.expandedpathlistfromvariable(libformats[i]))
     end
   end
-  return clibpaths
+  return libformatpaths
 end
 local function loadedbyformat(name,rawname,suffixes,islib)
   local trace=helpers.trace
@@ -15190,51 +15312,54 @@ local function loadedbyformat(name,rawname,suffixes,islib)
       if trace then
         report("lib %a located on %a",name,resolved)
       end
+      local result=nil
       if islib then
-        return true,loadedaslib(resolved,rawname)
+        result=loadedaslib(resolved,rawname)
       else
-        return true,loadfile(resolved)
+        result=loadfile(resolved)
+      end
+      if result then
+        return true,result()
       end
     end
   end
 end
 helpers.loadedbyformat=loadedbyformat
-local pattern=Cs((((1-S("\\/"))^0*(S("\\/")^1/"/"))^0*(P(".")^1/"/"+P(1))^1)*-1)
-local function lualibfile(name)
-  return lpegmatch(pattern,name) or name
-end
-helpers.lualibfile=lualibfile
-function helpers.loaded(name)
+local shown=false
+methods["lua variable format"]=function(name)
+  if not shown and helpers.trace then
+    local luapaths=getluaformatpaths() 
+    if #luapaths>0 then
+      helpers.report("using %s lua format paths",#luapaths)
+    else
+      helpers.report("no lua format paths defined")
+    end
+    shown=true
+  end
   local thename=lualibfile(name)
   local luaname=addsuffix(thename,"lua")
-  local libname=addsuffix(thename,os.libsuffix)
-  local libpaths=getlibpaths()
-  local clibpaths=getclibpaths()
-  local done,result=loadedbyformat(luaname,name,libsuffixes,false)
+  local done,result=loadedbyformat(luaname,name,luasuffixes,false)
   if done then
-    return result
+    return true,result
   end
-  local done,result=loadedbyformat(libname,name,clibsuffixes,true)
-  if done then
-    return result
-  end
-  local done,result=loadedbypath(luaname,name,libpaths,false,"lua")
-  if done then
-    return result
-  end
-  local done,result=loadedbypath(luaname,name,clibpaths,false,"lua")
-  if done then
-    return result
-  end
-  local done,result=loadedbypath(libname,name,clibpaths,true,"lib")
-  if done then
-    return result
+end
+local shown=false
+methods["lib variable format"]=function(name)
+  if not shown and helpers.trace then
+    local libpaths=getlibformatpaths() 
+    if #libpaths>0 then
+      helpers.report("using %s lib format paths",#libpaths)
+    else
+      helpers.report("no lib format paths defined")
+    end
+    shown=true
   end
-  local done,result=loadedbylua(name)
+  local thename=lualibfile(name)
+  local libname=addsuffix(thename,os.libsuffix)
+  local done,result=loadedbyformat(libname,name,libsuffixes,true)
   if done then
-    return result
+    return true,result
   end
-  return notloaded(name)
 end
 resolvers.loadlualib=require
 
@@ -15445,7 +15570,7 @@ do -- create closure to overcome 200 locals limit
 
 package.loaded["util-lib"] = package.loaded["util-lib"] or true
 
--- original size: 10985, stripped down to: 5458
+-- original size: 11094, stripped down to: 5516
 
 if not modules then modules={} end modules ['util-lib']={
   version=1.001,
@@ -15462,16 +15587,17 @@ local report_swiglib=logs.reporter("swiglib")
 local trace_swiglib=false trackers.register("resolvers.swiglib",function(v) trace_swiglib=v end)
 local done=false
 local function requireswiglib(required,version)
+  local trace_swiglib=trace_swiglib or package.helpers.trace
   local library=loaded[required]
   if library==nil then
-    local required_full=gsub(required,"%.","/")
+    local required_full=gsub(required,"%.","/") 
     local required_path=pathpart(required_full)
     local required_base=nameonly(required_full)
     local required_name=required_base.."."..os.libsuffix
     local version=type(version)=="string" and version~="" and version or false
     local engine=environment.ownmain or false
     if trace_swiglib and not done then
-      local list=resolvers.expandedpathlistfromvariable("lib")
+      local list=resolvers.expandedpathlistfromvariable("lib") 
       for i=1,#list do
         report_swiglib("tds path %i: %s",i,list[i])
       end
@@ -15553,7 +15679,7 @@ local function requireswiglib(required,version)
     end
     if not found_library then
       if trace_swiglib then
-        report_swiglib("not found: %a",asked_library)
+        report_swiglib("not found: %a",required)
       end
       library=false
     else
@@ -15854,10 +15980,10 @@ end
 
 end -- of closure
 
--- used libraries    : l-lua.lua l-lpeg.lua l-function.lua l-string.lua l-table.lua l-io.lua l-number.lua l-set.lua l-os.lua l-file.lua l-md5.lua l-url.lua l-dir.lua l-boolean.lua l-unicode.lua l-math.lua util-str.lua util-tab.lua util-sto.lua util-prs.lua util-fmt.lua trac-set.lua trac-log.lua trac-inf.lua trac-pro.lua util-lua.lua util-deb.lua util-mrg.lua util-tpl.lua util-env.lua luat-env.lua lxml-tab.lua lxml-lpt.lua lxml-mis.lua lxml-aux.lua lxml-xml.lua trac-xml.lua data-ini.lua data-exp.lua data-env.lua data-tmp.lua data-met.lua data-res.lua data-pre.lua data-inp.lua data-out.lua data-fil.lua data-con.lua data-use.lua data-zip.lua data-tre.lua data-sch.lua data-lua.lua data-aux.lua data-tmf.lua data-lst.lua util-lib.lua luat-sta.lua luat-fmt.lua
+-- used libraries    : l-lua.lua l-package.lua l-lpeg.lua l-function.lua l-string.lua l-table.lua l-io.lua l-number.lua l-set.lua l-os.lua l-file.lua l-md5.lua l-url.lua l-dir.lua l-boolean.lua l-unicode.lua l-math.lua util-str.lua util-tab.lua util-sto.lua util-prs.lua util-fmt.lua trac-set.lua trac-log.lua trac-inf.lua trac-pro.lua util-lua.lua util-deb.lua util-mrg.lua util-tpl.lua util-env.lua luat-env.lua lxml-tab.lua lxml-lpt.lua lxml-mis.lua lxml-aux.lua lxml-xml.lua trac-xml.lua data-ini.lua data-exp.lua data-env.lua data-tmp.lua data-met.lua data-res.lua data-pre.lua data-inp.lua data-out.lua data-fil.lua data-con.lua data-use.lua data-zip.lua data-tre.lua data-sch.lua data-lua.lua data-aux.lua data-tmf.lua data-lst.lua util-lib.lua luat-sta.lua luat-fmt.lua
 -- skipped libraries : -
--- original bytes    : 662959
--- stripped bytes    : 243507
+-- original bytes    : 665699
+-- stripped bytes    : 243168
 
 -- end library merge
 
@@ -15881,6 +16007,7 @@ local owntree = environment and environment.ownpath or ownpath
 local ownlibs = { -- order can be made better
 
     'l-lua.lua',
+    'l-package.lua',
     'l-lpeg.lua',
     'l-function.lua',
     'l-string.lua',
diff --git a/scripts/context/stubs/unix/mtxrun b/scripts/context/stubs/unix/mtxrun
index ae08dc556..7f1464fbc 100644
--- a/scripts/context/stubs/unix/mtxrun
+++ b/scripts/context/stubs/unix/mtxrun
@@ -56,7 +56,7 @@ do -- create closure to overcome 200 locals limit
 
 package.loaded["l-lua"] = package.loaded["l-lua"] or true
 
--- original size: 10352, stripped down to: 5955
+-- original size: 3123, stripped down to: 1694
 
 if not modules then modules={} end modules ['l-lua']={
   version=1.001,
@@ -136,51 +136,108 @@ function optionalrequire(...)
     return result
   end
 end
+
+
+end -- of closure
+
+do -- create closure to overcome 200 locals limit
+
+package.loaded["l-package"] = package.loaded["l-package"] or true
+
+-- original size: 9641, stripped down to: 7101
+
+if not modules then modules={} end modules ['l-package']={
+  version=1.001,
+  comment="companion to luat-lib.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
+}
 local type=type
 local gsub,format=string.gsub,string.format
+local P,S,Cs,lpegmatch=lpeg.P,lpeg.S,lpeg.Cs,lpeg.match
 local package=package
 local searchers=package.searchers or package.loaders
-local libpaths=nil
-local clibpaths=nil
-local libhash={}
-local clibhash={}
-local libextras={}
-local clibextras={}
 local filejoin=file and file.join    or function(path,name)  return path.."/"..name end
 local isreadable=file and file.is_readable or function(name)    local f=io.open(name) if f then f:close() return true end end
 local addsuffix=file and file.addsuffix  or function(name,suffix) return name.."."..suffix end
 local function cleanpath(path) 
   return path
 end
+local pattern=Cs((((1-S("\\/"))^0*(S("\\/")^1/"/"))^0*(P(".")^1/"/"+P(1))^1)*-1)
+local function lualibfile(name)
+  return lpegmatch(pattern,name) or name
+end
 local helpers=package.helpers or {
-  libpaths=function() return {} end,
-  clibpaths=function() return {} end,
   cleanpath=cleanpath,
+  lualibfile=lualibfile,
   trace=false,
   report=function(...) print(format(...)) end,
+  builtin={
+    ["preload table"]=package.searchers[1],
+    ["path specification"]=package.searchers[2],
+    ["cpath specification"]=package.searchers[3],
+    ["all in one fallback"]=package.searchers[4],
+  },
+  methods={},
+  sequence={
+    "already loaded",
+    "preload table",
+    "lua extra list",
+    "lib extra list",
+    "path specification",
+    "cpath specification",
+    "all in one fallback",
+    "not loaded",
+  }
 }
 package.helpers=helpers
-local function getlibpaths()
-  return libpaths or helpers.libpaths(libhash)
+local methods=helpers.methods
+local builtin=helpers.builtin
+local extraluapaths={}
+local extralibpaths={}
+local luapaths=nil 
+local libpaths=nil 
+local function getextraluapaths()
+  return extraluapaths
+end
+local function getextralibpaths()
+  return extralibpaths
+end
+local function getluapaths()
+  luapaths=luapaths or file.splitpath(package.path,";")
+  return luapaths
 end
-local function getclibpaths()
-  return clibpaths or helpers.clibpaths(clibhash)
+local function getlibpaths()
+  libpaths=libpaths or file.splitpath(package.cpath,";")
+  return libpaths
 end
+package.luapaths=getluapaths
 package.libpaths=getlibpaths
-package.clibpaths=getclibpaths
-local function addpath(what,paths,extras,hash,...)
+package.extraluapaths=getextraluapaths
+package.extralibpaths=getextralibpaths
+local hashes={
+  lua={},
+  lib={},
+}
+local function registerpath(tag,what,target,...)
   local pathlist={... }
   local cleanpath=helpers.cleanpath
   local trace=helpers.trace
   local report=helpers.report
+  local hash=hashes[what]
   local function add(path)
     local path=cleanpath(path)
     if not hash[path] then
+      target[#target+1]=path
+      hash[path]=true
+      if trace then
+        report("registered %s path %s: %s",tag,#target,path)
+      end
+    else
       if trace then
-        report("extra %s path: %s",what,path)
+        report("duplicate %s path: %s",tag,path)
       end
-      paths [#paths+1]=path
-      extras[#extras+1]=path
     end
   end
   for p=1,#pathlist do
@@ -193,21 +250,15 @@ local function addpath(what,paths,extras,hash,...)
       add(path)
     end
   end
-  return paths,extras
+  return paths
 end
-function package.extralibpath(...)
-   libpaths,libextras=addpath("lua",getlibpaths(),libextras,libhash,...)
-end
-function package.extraclibpath(...)
-  clibpaths,clibextras=addpath("lib",getclibpaths(),clibextras,clibhash,...)
+helpers.registerpath=registerpath
+function package.extraluapath(...)
+  registerpath("extra lua","lua",extraluapaths,...)
 end
-if not searchers[-2] then
-  searchers[-2]=searchers[2]
-end
-searchers[2]=function(name)
-  return helpers.loaded(name)
+function package.extralibpath(...)
+  registerpath("extra lib","lib",extralibpaths,...)
 end
-searchers[3]=nil 
 local function loadedaslib(resolved,rawname)
   local init="luaopen_"..gsub(rawname,"%.","_")
   if helpers.trace then
@@ -215,12 +266,7 @@ local function loadedaslib(resolved,rawname)
   end
   return package.loadlib(resolved,init)
 end
-local function loadedbylua(name)
-  if helpers.trace then
-    helpers.report("locating '%s' using normal loader",name)
-  end
-  return true,searchers[-2](name) 
-end
+helpers.loadedaslib=loadedaslib
 local function loadedbypath(name,rawname,paths,islib,what)
   local trace=helpers.trace
   local report=helpers.report
@@ -231,63 +277,135 @@ local function loadedbypath(name,rawname,paths,islib,what)
     local path=paths[p]
     local resolved=filejoin(path,name)
     if trace then 
-      report("checking for '%s' using '%s' path '%s'",name,what,path)
+      report("checking '%s' using '%s' path '%s'",name,what,path)
     end
     if isreadable(resolved) then
       if trace then
-        report("lib '%s' located on '%s'",name,resolved)
+        report("'%s' located on '%s'",name,resolved)
       end
+      local result=nil
       if islib then
-        return true,loadedaslib(resolved,rawname)
+        result=loadedaslib(resolved,rawname)
       else
-        return true,loadfile(resolved)
+        result=loadfile(resolved)
+      end
+      if result then
+        result()
       end
+      return true,result
     end
   end
 end
-local function notloaded(name)
-  if helpers.trace then
-    helpers.report("unable to locate library '%s'",name)
+helpers.loadedbypath=loadedbypath
+methods["already loaded"]=function(name)
+  local result=package.loaded[name]
+  if result then
+    return true,result
   end
 end
-helpers.loadedaslib=loadedaslib
-helpers.loadedbylua=loadedbylua
-helpers.loadedbypath=loadedbypath
-helpers.notloaded=notloaded
-function helpers.loaded(name)
-  local thename=gsub(name,"%.","/")
+methods["preload table"]=function(name)
+  local result=builtin["preload table"](name)
+  if type(result)=="function" then
+    return true,result
+  end
+end
+methods["lua extra list"]=function(name)
+  local thename=lualibfile(name)
   local luaname=addsuffix(thename,"lua")
-  local libname=addsuffix(thename,os.libsuffix or "so") 
-  local libpaths=getlibpaths()
-  local clibpaths=getclibpaths()
-  local done,result=loadedbypath(luaname,name,libpaths,false,"lua")
+  local luapaths=getextraluapaths()
+  local done,result=loadedbypath(luaname,name,luapaths,false,"lua")
   if done then
-    return result
+    return true,result
   end
-  local done,result=loadedbypath(luaname,name,clibpaths,false,"lua")
+end
+methods["lib extra list"]=function(name)
+  local thename=lualibfile(name)
+  local libname=addsuffix(thename,os.libsuffix)
+  local libpaths=getextralibpaths()
+  local done,result=loadedbypath(libname,name,libpaths,true,"lib")
   if done then
-    return result
+    return true,result
   end
-  local done,result=loadedbypath(libname,name,clibpaths,true,"lib")
-  if done then
-    return result
+end
+local shown=false
+methods["path specification"]=function(name)
+  if not shown and helpers.trace then
+    local luapaths=getluapaths() 
+    if #luapaths>0 then
+      helpers.report("using %s built in lua paths",#luapaths)
+    else
+      helpers.report("no built in lua paths defined")
+    end
+    shown=true
   end
-  local done,result=loadedbylua(name)
-  if done then
-    return result
+  local result=builtin["path specification"](name)
+  if type(result)=="function" then
+    return true,result()
+  end
+end
+local shown=false
+methods["cpath specification"]=function(name)
+  if not shown and helpers.trace then
+    local libpaths=getlibpaths() 
+    if #libpaths>0 then
+      helpers.report("using %s built in lib paths",#libpaths)
+    else
+      helpers.report("no built in lib paths defined")
+    end
+    shown=true
+  end
+  local result=builtin["cpath specification"](name)
+  if type(result)=="function" then
+    return true,result()
+  end
+end
+methods["all in one fallback"]=function(name)
+  local result=builtin["all in one fallback"](name)
+  if type(result)=="function" then
+    return true,result()
+  end
+end
+methods["not loaded"]=function(name)
+  if helpers.trace then
+    helpers.report("unable to locate '%s'",name)
+  end
+end
+function helpers.loaded(name)
+  local sequence=helpers.sequence
+  for i=1,#sequence do
+    local step=sequence[i]
+    if helpers.trace then
+      helpers.report("locating '%s' using method '%s'",name,step)
+    end
+    local done,result=methods[step](name)
+    if done then
+      if helpers.trace then
+        helpers.report("'%s' located via method '%s' returns '%s'",name,step,type(result))
+      end
+      if result then
+        package.loaded[name]=result
+      end
+      return result
+    end
   end
-  return notloaded(name)
+  return nil 
 end
 function helpers.unload(name)
   if helpers.trace then
     if package.loaded[name] then
-      helpers.report("unloading library '%s', %s",name,"done")
+      helpers.report("unloading '%s', %s",name,"done")
     else
-      helpers.report("unloading library '%s', %s",name,"not loaded")
+      helpers.report("unloading '%s', %s",name,"not loaded")
     end
   end
-  package.loaded[name]=nil
+  package.loaded[name]=nil 
 end
+searchers[1]=nil
+searchers[2]=nil
+searchers[3]=nil
+searchers[4]=nil
+helpers.savedrequire=helpers.savedrequire or require
+require=helpers.loaded
 
 
 end -- of closure
@@ -15113,7 +15231,7 @@ do -- create closure to overcome 200 locals limit
 
 package.loaded["data-lua"] = package.loaded["data-lua"] or true
 
--- original size: 4861, stripped down to: 3693
+-- original size: 5080, stripped down to: 3874
 
 if not modules then modules={} end modules ['data-lua']={
   version=1.001,
@@ -15127,52 +15245,56 @@ local gsub=string.gsub
 local concat=table.concat
 local addsuffix=file.addsuffix
 local P,S,Cs,lpegmatch=lpeg.P,lpeg.S,lpeg.Cs,lpeg.match
-local libsuffixes={ 'tex','lua' }
-local clibsuffixes={ 'lib' }
-local libformats={ 'TEXINPUTS','LUAINPUTS' }
-local clibformats={ 'CLUAINPUTS' }
-local helpers=package.helpers
+local luasuffixes={ 'tex','lua' }
+local libsuffixes={ 'lib' }
+local luaformats={ 'TEXINPUTS','LUAINPUTS' }
+local libformats={ 'CLUAINPUTS' }
+local helpers=package.helpers or {}
+local methods=helpers.methods or {}
 trackers.register("resolvers.libraries",function(v) helpers.trace=v end)
 trackers.register("resolvers.locating",function(v) helpers.trace=v end)
 helpers.report=logs.reporter("resolvers","libraries")
+helpers.sequence={
+  "already loaded",
+  "preload table",
+  "lua variable format",
+  "lib variable format",
+  "lua extra list",
+  "lib extra list",
+  "path specification",
+  "cpath specification",
+  "all in one fallback",
+  "not loaded",
+}
 local pattern=Cs(P("!")^0/""*(P("/")*P(-1)/"/"+P("/")^1/"/"+1)^0)
-local function cleanpath(path) 
+function helpers.cleanpath(path) 
   return resolvers.resolve(lpegmatch(pattern,path))
 end
-helpers.cleanpath=cleanpath
 local loadedaslib=helpers.loadedaslib
-local loadedbylua=helpers.loadedbylua
 local loadedbypath=helpers.loadedbypath
-local notloaded=helpers.notloaded
-local getlibpaths=package.libpaths
-local getclibpaths=package.clibpaths
-function helpers.libpaths(libhash)
-  local libpaths={}
-  for i=1,#libformats do
-    local paths=resolvers.expandedpathlistfromvariable(libformats[i])
-    for i=1,#paths do
-      local path=cleanpath(paths[i])
-      if not libhash[path] then
-        libpaths[#libpaths+1]=path
-        libhash[path]=true
-      end
+local getextraluapaths=package.extraluapaths
+local getextralibpaths=package.extralibpaths
+local registerpath=helpers.registerpath
+local lualibfile=helpers.lualibfile
+local luaformatpaths
+local libformatpaths
+local function getluaformatpaths()
+  if not luaformatpaths then
+    luaformatpaths={}
+    for i=1,#luaformats do
+      registerpath("lua format","lua",luaformatpaths,resolvers.expandedpathlistfromvariable(luaformats[i]))
     end
   end
-  return libpaths
+  return luaformatpaths
 end
-function helpers.clibpaths(clibhash)
-  local clibpaths={}
-  for i=1,#clibformats do
-    local paths=resolvers.expandedpathlistfromvariable(clibformats[i])
-    for i=1,#paths do
-      local path=cleanpath(paths[i])
-      if not clibhash[path] then
-        clibpaths[#clibpaths+1]=path
-        clibhash[path]=true
-      end
+local function getlibformatpaths()
+  if not libformatpaths then
+    libformatpaths={}
+    for i=1,#libformats do
+      registerpath("lib format","lib",libformatpaths,resolvers.expandedpathlistfromvariable(libformats[i]))
     end
   end
-  return clibpaths
+  return libformatpaths
 end
 local function loadedbyformat(name,rawname,suffixes,islib)
   local trace=helpers.trace
@@ -15190,51 +15312,54 @@ local function loadedbyformat(name,rawname,suffixes,islib)
       if trace then
         report("lib %a located on %a",name,resolved)
       end
+      local result=nil
       if islib then
-        return true,loadedaslib(resolved,rawname)
+        result=loadedaslib(resolved,rawname)
       else
-        return true,loadfile(resolved)
+        result=loadfile(resolved)
+      end
+      if result then
+        return true,result()
       end
     end
   end
 end
 helpers.loadedbyformat=loadedbyformat
-local pattern=Cs((((1-S("\\/"))^0*(S("\\/")^1/"/"))^0*(P(".")^1/"/"+P(1))^1)*-1)
-local function lualibfile(name)
-  return lpegmatch(pattern,name) or name
-end
-helpers.lualibfile=lualibfile
-function helpers.loaded(name)
+local shown=false
+methods["lua variable format"]=function(name)
+  if not shown and helpers.trace then
+    local luapaths=getluaformatpaths() 
+    if #luapaths>0 then
+      helpers.report("using %s lua format paths",#luapaths)
+    else
+      helpers.report("no lua format paths defined")
+    end
+    shown=true
+  end
   local thename=lualibfile(name)
   local luaname=addsuffix(thename,"lua")
-  local libname=addsuffix(thename,os.libsuffix)
-  local libpaths=getlibpaths()
-  local clibpaths=getclibpaths()
-  local done,result=loadedbyformat(luaname,name,libsuffixes,false)
+  local done,result=loadedbyformat(luaname,name,luasuffixes,false)
   if done then
-    return result
+    return true,result
   end
-  local done,result=loadedbyformat(libname,name,clibsuffixes,true)
-  if done then
-    return result
-  end
-  local done,result=loadedbypath(luaname,name,libpaths,false,"lua")
-  if done then
-    return result
-  end
-  local done,result=loadedbypath(luaname,name,clibpaths,false,"lua")
-  if done then
-    return result
-  end
-  local done,result=loadedbypath(libname,name,clibpaths,true,"lib")
-  if done then
-    return result
+end
+local shown=false
+methods["lib variable format"]=function(name)
+  if not shown and helpers.trace then
+    local libpaths=getlibformatpaths() 
+    if #libpaths>0 then
+      helpers.report("using %s lib format paths",#libpaths)
+    else
+      helpers.report("no lib format paths defined")
+    end
+    shown=true
   end
-  local done,result=loadedbylua(name)
+  local thename=lualibfile(name)
+  local libname=addsuffix(thename,os.libsuffix)
+  local done,result=loadedbyformat(libname,name,libsuffixes,true)
   if done then
-    return result
+    return true,result
   end
-  return notloaded(name)
 end
 resolvers.loadlualib=require
 
@@ -15445,7 +15570,7 @@ do -- create closure to overcome 200 locals limit
 
 package.loaded["util-lib"] = package.loaded["util-lib"] or true
 
--- original size: 10985, stripped down to: 5458
+-- original size: 11094, stripped down to: 5516
 
 if not modules then modules={} end modules ['util-lib']={
   version=1.001,
@@ -15462,16 +15587,17 @@ local report_swiglib=logs.reporter("swiglib")
 local trace_swiglib=false trackers.register("resolvers.swiglib",function(v) trace_swiglib=v end)
 local done=false
 local function requireswiglib(required,version)
+  local trace_swiglib=trace_swiglib or package.helpers.trace
   local library=loaded[required]
   if library==nil then
-    local required_full=gsub(required,"%.","/")
+    local required_full=gsub(required,"%.","/") 
     local required_path=pathpart(required_full)
     local required_base=nameonly(required_full)
     local required_name=required_base.."."..os.libsuffix
     local version=type(version)=="string" and version~="" and version or false
     local engine=environment.ownmain or false
     if trace_swiglib and not done then
-      local list=resolvers.expandedpathlistfromvariable("lib")
+      local list=resolvers.expandedpathlistfromvariable("lib") 
       for i=1,#list do
         report_swiglib("tds path %i: %s",i,list[i])
       end
@@ -15553,7 +15679,7 @@ local function requireswiglib(required,version)
     end
     if not found_library then
       if trace_swiglib then
-        report_swiglib("not found: %a",asked_library)
+        report_swiglib("not found: %a",required)
       end
       library=false
     else
@@ -15854,10 +15980,10 @@ end
 
 end -- of closure
 
--- used libraries    : l-lua.lua l-lpeg.lua l-function.lua l-string.lua l-table.lua l-io.lua l-number.lua l-set.lua l-os.lua l-file.lua l-md5.lua l-url.lua l-dir.lua l-boolean.lua l-unicode.lua l-math.lua util-str.lua util-tab.lua util-sto.lua util-prs.lua util-fmt.lua trac-set.lua trac-log.lua trac-inf.lua trac-pro.lua util-lua.lua util-deb.lua util-mrg.lua util-tpl.lua util-env.lua luat-env.lua lxml-tab.lua lxml-lpt.lua lxml-mis.lua lxml-aux.lua lxml-xml.lua trac-xml.lua data-ini.lua data-exp.lua data-env.lua data-tmp.lua data-met.lua data-res.lua data-pre.lua data-inp.lua data-out.lua data-fil.lua data-con.lua data-use.lua data-zip.lua data-tre.lua data-sch.lua data-lua.lua data-aux.lua data-tmf.lua data-lst.lua util-lib.lua luat-sta.lua luat-fmt.lua
+-- used libraries    : l-lua.lua l-package.lua l-lpeg.lua l-function.lua l-string.lua l-table.lua l-io.lua l-number.lua l-set.lua l-os.lua l-file.lua l-md5.lua l-url.lua l-dir.lua l-boolean.lua l-unicode.lua l-math.lua util-str.lua util-tab.lua util-sto.lua util-prs.lua util-fmt.lua trac-set.lua trac-log.lua trac-inf.lua trac-pro.lua util-lua.lua util-deb.lua util-mrg.lua util-tpl.lua util-env.lua luat-env.lua lxml-tab.lua lxml-lpt.lua lxml-mis.lua lxml-aux.lua lxml-xml.lua trac-xml.lua data-ini.lua data-exp.lua data-env.lua data-tmp.lua data-met.lua data-res.lua data-pre.lua data-inp.lua data-out.lua data-fil.lua data-con.lua data-use.lua data-zip.lua data-tre.lua data-sch.lua data-lua.lua data-aux.lua data-tmf.lua data-lst.lua util-lib.lua luat-sta.lua luat-fmt.lua
 -- skipped libraries : -
--- original bytes    : 662959
--- stripped bytes    : 243507
+-- original bytes    : 665699
+-- stripped bytes    : 243168
 
 -- end library merge
 
@@ -15881,6 +16007,7 @@ local owntree = environment and environment.ownpath or ownpath
 local ownlibs = { -- order can be made better
 
     'l-lua.lua',
+    'l-package.lua',
     'l-lpeg.lua',
     'l-function.lua',
     'l-string.lua',
diff --git a/tex/context/base/cont-new.mkiv b/tex/context/base/cont-new.mkiv
index 8466f5301..17f7b3d08 100644
--- a/tex/context/base/cont-new.mkiv
+++ b/tex/context/base/cont-new.mkiv
@@ -11,7 +11,7 @@
 %C therefore copyrighted by \PRAGMA. See mreadme.pdf for
 %C details.
 
-\newcontextversion{2013.04.16 18:49}
+\newcontextversion{2013.04.17 17:29}
 
 %D This file is loaded at runtime, thereby providing an excellent place for
 %D hacks, patches, extensions and new features.
diff --git a/tex/context/base/context-version.pdf b/tex/context/base/context-version.pdf
index 98f60c42f..eb9088ef9 100644
--- a/tex/context/base/context-version.pdf
+++ b/tex/context/base/context-version.pdf
diff --git a/tex/context/base/context-version.png b/tex/context/base/context-version.png
index 9c794d4ab..83a3164fd 100644
--- a/tex/context/base/context-version.png
+++ b/tex/context/base/context-version.png
diff --git a/tex/context/base/context.mkiv b/tex/context/base/context.mkiv
index 357723f69..5fece4a9b 100644
--- a/tex/context/base/context.mkiv
+++ b/tex/context/base/context.mkiv
@@ -25,7 +25,7 @@
 %D up and the dependencies are more consistent.
 
 \edef\contextformat {\jobname}
-\edef\contextversion{2013.04.16 18:49}
+\edef\contextversion{2013.04.17 17:29}
 \edef\contextkind   {beta}
 
 %D For those who want to use this:
diff --git a/tex/context/base/data-lua.lua b/tex/context/base/data-lua.lua
index 7e3d92585..14aebf959 100644
--- a/tex/context/base/data-lua.lua
+++ b/tex/context/base/data-lua.lua
@@ -16,61 +16,65 @@ local addsuffix = file.addsuffix
 
 local P, S, Cs, lpegmatch = lpeg.P, lpeg.S, lpeg.Cs, lpeg.match
 
-local  libsuffixes = { 'tex', 'lua' }
-local clibsuffixes = { 'lib' }
-local  libformats  = { 'TEXINPUTS', 'LUAINPUTS' }
-local clibformats  = { 'CLUAINPUTS' }
-local helpers      = package.helpers
+local luasuffixes = { 'tex', 'lua' }
+local libsuffixes = { 'lib' }
+local luaformats  = { 'TEXINPUTS', 'LUAINPUTS' }
+local libformats  = { 'CLUAINPUTS' }
+local helpers     = package.helpers or { }
+local methods     = helpers.methods or { }
 
 trackers.register("resolvers.libraries", function(v) helpers.trace = v end)
 trackers.register("resolvers.locating",  function(v) helpers.trace = v end)
 
 helpers.report = logs.reporter("resolvers","libraries")
 
+helpers.sequence = {
+    "already loaded",
+    "preload table",
+    "lua variable format",
+    "lib variable format",
+    "lua extra list",
+    "lib extra list",
+    "path specification",
+    "cpath specification",
+    "all in one fallback",
+    "not loaded",
+}
+
 local pattern = Cs(P("!")^0 / "" * (P("/") * P(-1) / "/" + P("/")^1 / "/" + 1)^0)
 
-local function cleanpath(path) -- hm, don't we have a helper for this?
+function helpers.cleanpath(path) -- hm, don't we have a helper for this?
     return resolvers.resolve(lpegmatch(pattern,path))
 end
 
-helpers.cleanpath = cleanpath
-
-local loadedaslib    = helpers.loadedaslib
-local loadedbylua    = helpers.loadedbylua
-local loadedbypath   = helpers.loadedbypath
-local notloaded      = helpers.notloaded
-
-local getlibpaths    = package.libpaths
-local getclibpaths   = package.clibpaths
-
-function helpers.libpaths(libhash)
-    local libpaths  = { }
-    for i=1,#libformats do
-        local paths = resolvers.expandedpathlistfromvariable(libformats[i])
-        for i=1,#paths do
-            local path = cleanpath(paths[i])
-            if not libhash[path] then
-                libpaths[#libpaths+1] = path
-                libhash[path] = true
-            end
+local loadedaslib      = helpers.loadedaslib
+local loadedbypath     = helpers.loadedbypath
+local getextraluapaths = package.extraluapaths
+local getextralibpaths = package.extralibpaths
+local registerpath     = helpers.registerpath
+local lualibfile       = helpers.lualibfile
+
+local luaformatpaths
+local libformatpaths
+
+local function getluaformatpaths()
+    if not luaformatpaths then
+        luaformatpaths = { }
+        for i=1,#luaformats do
+            registerpath("lua format","lua",luaformatpaths,resolvers.expandedpathlistfromvariable(luaformats[i]))
         end
     end
-    return libpaths
+    return luaformatpaths
 end
 
-function helpers.clibpaths(clibhash)
-    local clibpaths = { }
-    for i=1,#clibformats do
-        local paths = resolvers.expandedpathlistfromvariable(clibformats[i])
-        for i=1,#paths do
-            local path = cleanpath(paths[i])
-            if not clibhash[path] then
-                clibpaths[#clibpaths+1] = path
-                clibhash[path] = true
-            end
+local function getlibformatpaths()
+    if not libformatpaths then
+        libformatpaths = { }
+        for i=1,#libformats do
+            registerpath("lib format","lib",libformatpaths,resolvers.expandedpathlistfromvariable(libformats[i]))
         end
     end
-    return clibpaths
+    return libformatpaths
 end
 
 local function loadedbyformat(name,rawname,suffixes,islib)
@@ -89,10 +93,14 @@ local function loadedbyformat(name,rawname,suffixes,islib)
             if trace then
                 report("lib %a located on %a",name,resolved)
             end
+            local result = nil
             if islib then
-                return true, loadedaslib(resolved,rawname)
+                result = loadedaslib(resolved,rawname)
             else
-                return true, loadfile(resolved)
+                result = loadfile(resolved)
+            end
+            if result then
+                return true, result()
             end
         end
     end
@@ -100,16 +108,6 @@ end
 
 helpers.loadedbyformat = loadedbyformat
 
--- alternatively we could set the package.searchers
-
-local pattern = Cs((((1-S("\\/"))^0 * (S("\\/")^1/"/"))^0 * (P(".")^1/"/"+P(1))^1) * -1)
-
-local function lualibfile(name)
-    return lpegmatch(pattern,name) or name
-end
-
-helpers.lualibfile = lualibfile
-
 -- print(lualibfile("bar"))
 -- print(lualibfile("foo.bar"))
 -- print(lualibfile("crap/foo...bar"))
@@ -119,41 +117,49 @@ helpers.lualibfile = lualibfile
 
 -- alternatively we could split in path and base and temporary set the libpath to path
 
-function helpers.loaded(name)
-    local thename   = lualibfile(name)
-    local luaname   = addsuffix(thename,"lua")
-    local libname   = addsuffix(thename,os.libsuffix)
-    local libpaths  = getlibpaths()
-    local clibpaths = getclibpaths()
-    local done, result = loadedbyformat(luaname,name,libsuffixes,false)
-    if done then
-        return result
-    end
-    local done, result = loadedbyformat(libname,name,clibsuffixes,true)
-    if done then
-        return result
-    end
-    local done, result = loadedbypath(luaname,name,libpaths,false,"lua")
-    if done then
-        return result
+-- we could build a list of relevant paths but for tracing it's better to have the
+-- whole lot (ok, we could skip the duplicates)
+
+local shown = false
+
+methods["lua variable format"] = function(name)
+    if not shown and helpers.trace then
+        local luapaths = getluaformatpaths() -- triggers building
+        if #luapaths > 0 then
+            helpers.report("using %s lua format paths",#luapaths)
+        else
+            helpers.report("no lua format paths defined")
+        end
+        shown = true
     end
-    local done, result = loadedbypath(luaname,name,clibpaths,false,"lua")
+    local thename = lualibfile(name)
+    local luaname = addsuffix(thename,"lua")
+    local done, result = loadedbyformat(luaname,name,luasuffixes,false)
     if done then
-        return result
+        return true, result
     end
-    local done, result = loadedbypath(libname,name,clibpaths,true,"lib")
-    if done then
-        return result
+end
+
+local shown = false
+
+methods["lib variable format"] = function(name)
+    if not shown and helpers.trace then
+        local libpaths = getlibformatpaths() -- triggers building
+        if #libpaths > 0 then
+            helpers.report("using %s lib format paths",#libpaths)
+        else
+            helpers.report("no lib format paths defined")
+        end
+        shown = true
     end
-    local done, result = loadedbylua(name)
+    local thename = lualibfile(name)
+    local libname = addsuffix(thename,os.libsuffix)
+    local done, result = loadedbyformat(libname,name,libsuffixes,true)
     if done then
-        return result
+        return true, result
     end
-    return notloaded(name)
 end
 
--- package.searchers[3] = nil -- get rid of the built in one (done in l-lua)
-
 -- package.extraclibpath(environment.ownpath)
 
 resolvers.loadlualib = require
diff --git a/tex/context/base/font-mis.lua b/tex/context/base/font-mis.lua
index 247b0f641..c22548ac5 100644
--- a/tex/context/base/font-mis.lua
+++ b/tex/context/base/font-mis.lua
@@ -22,7 +22,7 @@ local handlers = fonts.handlers
 handlers.otf   = handlers.otf or { }
 local otf      = handlers.otf
 
-otf.version    = otf.version or 2.741
+otf.version    = otf.version or 2.742
 otf.cache      = otf.cache   or containers.define("fonts", "otf", otf.version, true)
 
 function otf.loadcached(filename,format,sub)
diff --git a/tex/context/base/font-otf.lua b/tex/context/base/font-otf.lua
index b8abd590a..8a6183180 100644
--- a/tex/context/base/font-otf.lua
+++ b/tex/context/base/font-otf.lua
@@ -23,6 +23,7 @@ local lpegmatch = lpeg.match
 local reversed, concat, remove = table.reversed, table.concat, table.remove
 local ioflush = io.flush
 local fastcopy, tohash, derivetable = table.fastcopy, table.tohash, table.derive
+local formatters = string.formatters
 
 local allocate           = utilities.storage.allocate
 local registertracker    = trackers.register
@@ -47,7 +48,7 @@ local otf                = fonts.handlers.otf
 
 otf.glists               = { "gsub", "gpos" }
 
-otf.version              = 2.741 -- beware: also sync font-mis.lua
+otf.version              = 2.742 -- beware: also sync font-mis.lua
 otf.cache                = containers.define("fonts", "otf", otf.version, true)
 
 local fontdata           = fonts.hashes.identifiers
@@ -1172,7 +1173,20 @@ local function t_hashed(t,cache)
     end
 end
 
-local s_hashed = t_hashed
+-- local s_hashed = t_hashed
+
+local function s_hashed(t,cache)
+    if t then
+        local ht = { }
+        local tf = t[1]
+        for i=1,#tf do
+            ht[i] = { [tf[i]] = true }
+        end
+        return ht
+    else
+        return nil
+    end
+end
 
 local function r_uncover(splitter,cache,cover,replacements)
     if cover == "" then
@@ -1307,6 +1321,9 @@ actions["reorganize lookups"] = function(data,filename,raw) -- we could check fo
                         end
                     end
                 elseif format == "glyphs" then
+                    -- I could store these more efficient (as not we use a nested tables for before,
+                    -- after and current but this features happens so seldom that I don't bother
+                    -- about it right now.
                     for i=1,#rules do
                         local rule = rules[i]
                         local glyphs = rule.glyphs
diff --git a/tex/context/base/l-lua.lua b/tex/context/base/l-lua.lua
index 51816400e..fc05afa67 100644
--- a/tex/context/base/l-lua.lua
+++ b/tex/context/base/l-lua.lua
@@ -6,7 +6,7 @@ if not modules then modules = { } end modules ['l-lua'] = {
     license   = "see context related readme files"
 }
 
--- compatibility hacks ... try to avoid usage
+-- compatibility hacksand helpers
 
 local major, minor = string.match(_VERSION,"^[^%d]+(%d+)%.(%d+).*$")
 
@@ -148,257 +148,3 @@ function optionalrequire(...)
         return result
     end
 end
-
--- Code moved from data-lua and changed into a plug-in.
-
--- We overload the regular loader. We do so because we operate mostly in
--- tds and use our own loader code. Alternatively we could use a more
--- extensive definition of package.path and package.cpath but even then
--- we're not done. Also, we now have better tracing.
---
--- -- local mylib = require("libtest")
--- -- local mysql = require("luasql.mysql")
-
-local type = type
-local gsub, format = string.gsub, string.format
-
-local package    = package
-local searchers  = package.searchers or package.loaders
-
-local libpaths   = nil
-local clibpaths  = nil
-local libhash    = { }
-local clibhash   = { }
-local libextras  = { }
-local clibextras = { }
-
--- dummies
-
-local filejoin   = file and file.join        or function(path,name)   return path .. "/" .. name end
-local isreadable = file and file.is_readable or function(name)        local f = io.open(name) if f then f:close() return true end end
-local addsuffix  = file and file.addsuffix   or function(name,suffix) return name .. "." .. suffix end
-
---
-
-local function cleanpath(path) -- hm, don't we have a helper for this?
-    return path
-end
-
-local helpers    = package.helpers or {
-    libpaths  = function() return { } end,
-    clibpaths = function() return { } end,
-    cleanpath = cleanpath,
-    trace     = false,
-    report    = function(...) print(format(...)) end,
-}
-package.helpers  = helpers
-
-local function getlibpaths()
-    return libpaths or helpers.libpaths(libhash)
-end
-
-local function getclibpaths()
-    return clibpaths or helpers.clibpaths(clibhash)
-end
-
-package.libpaths  = getlibpaths
-package.clibpaths = getclibpaths
-
-local function addpath(what,paths,extras,hash,...)
-    local pathlist  = { ... }
-    local cleanpath = helpers.cleanpath
-    local trace     = helpers.trace
-    local report    = helpers.report
-    --
-    local function add(path)
-        local path = cleanpath(path)
-        if not hash[path] then
-            if trace then
-                report("extra %s path: %s",what,path)
-            end
-            paths [#paths +1] = path
-            extras[#extras+1] = path
-        end
-    end
-    --
-    for p=1,#pathlist do
-        local path = pathlist[p]
-        if type(path) == "table" then
-            for i=1,#path do
-                add(path[i])
-            end
-        else
-            add(path)
-        end
-    end
-    return paths, extras
-end
-
-function package.extralibpath(...)
-     libpaths,  libextras = addpath("lua", getlibpaths(), libextras, libhash,...)
-end
-
-function package.extraclibpath(...)
-    clibpaths, clibextras = addpath("lib",getclibpaths(),clibextras,clibhash,...)
-end
-
--- function package.extralibpath(...)
---     libpaths  = getlibpaths()
---     local pathlist  = { ... }
---     local cleanpath = helpers.cleanpath
---     local trace     = helpers.trace
---     local report    = helpers.report
---     --
---     local function add(path)
---         local path = cleanpath(path)
---         if not libhash[path] then
---             if trace then
---                 report("extra lua path: %s",path)
---             end
---             libextras[#libextras+1] = path
---             libpaths [#libpaths +1] = path
---         end
---     end
---     --
---     for p=1,#pathlist do
---         local path = pathlist[p]
---         if type(path) == "table" then
---             for i=1,#path do
---                 add(path[i])
---             end
---         else
---             add(path)
---         end
---     end
--- end
-
--- function package.extraclibpath(...)
---     clibpaths = getclibpaths()
---     local pathlist  = { ... }
---     local cleanpath = helpers.cleanpath
---     local trace     = helpers.trace
---     local report    = helpers.report
---     --
---     local function add(path)
---         local path = cleanpath(path)
---         if not clibhash[path] then
---             if trace then
---                 report("extra lib path: %s",path)
---             end
---             clibextras[#clibextras+1] = path
---             clibpaths [#clibpaths +1] = path
---         end
---     end
---     --
---     for p=1,#pathlist do
---         local path = pathlist[p]
---         if type(path) == "table" then
---             for i=1,#path do
---                 add(path[i])
---             end
---         else
---             add(path)
---         end
---     end
--- end
-
-if not searchers[-2] then
-    -- use package-path and package-cpath
-    searchers[-2] = searchers[2]
-end
-
-searchers[2] = function(name)
-    return helpers.loaded(name)
-end
-
-searchers[3] = nil -- get rid of the built in one
-
-local function loadedaslib(resolved,rawname)
- -- local init = "luaopen_" .. string.match(rawname,".-([^%.]+)$")
-    local init = "luaopen_"..gsub(rawname,"%.","_")
-    if helpers.trace then
-        helpers.report("calling loadlib with '%s' with init '%s'",resolved,init)
-    end
-    return package.loadlib(resolved,init)
-end
-
-local function loadedbylua(name)
-    if helpers.trace then
-        helpers.report("locating '%s' using normal loader",name)
-    end
-    return true, searchers[-2](name) -- the original
-end
-
-local function loadedbypath(name,rawname,paths,islib,what)
-    local trace  = helpers.trace
-    local report = helpers.report
-    if trace then
-        report("locating '%s' as '%s' on '%s' paths",rawname,name,what)
-    end
-    for p=1,#paths do
-        local path = paths[p]
-        local resolved = filejoin(path,name)
-        if trace then -- mode detail
-            report("checking for '%s' using '%s' path '%s'",name,what,path)
-        end
-        if isreadable(resolved) then
-            if trace then
-                report("lib '%s' located on '%s'",name,resolved)
-            end
-            if islib then
-                return true, loadedaslib(resolved,rawname)
-            else
-                return true, loadfile(resolved)
-            end
-        end
-    end
-end
-
-local function notloaded(name)
-    if helpers.trace then
-        helpers.report("unable to locate library '%s'",name)
-    end
-end
-
-helpers.loadedaslib  = loadedaslib
-helpers.loadedbylua  = loadedbylua
-helpers.loadedbypath = loadedbypath
-helpers.notloaded    = notloaded
-
--- alternatively we could set the package.searchers
-
-function helpers.loaded(name)
-    local thename   = gsub(name,"%.","/")
-    local luaname   = addsuffix(thename,"lua")
-    local libname   = addsuffix(thename,os.libsuffix or "so") -- brrr
-    local libpaths  = getlibpaths()
-    local clibpaths = getclibpaths()
-    local done, result = loadedbypath(luaname,name,libpaths,false,"lua")
-    if done then
-        return result
-    end
-    local done, result = loadedbypath(luaname,name,clibpaths,false,"lua")
-    if done then
-        return result
-    end
-    local done, result = loadedbypath(libname,name,clibpaths,true,"lib")
-    if done then
-        return result
-    end
-    local done, result = loadedbylua(name)
-    if done then
-        return result
-    end
-    return notloaded(name)
-end
-
-function helpers.unload(name)
-    if helpers.trace then
-        if package.loaded[name] then
-            helpers.report("unloading library '%s', %s",name,"done")
-        else
-            helpers.report("unloading library '%s', %s",name,"not loaded")
-        end
-    end
-    package.loaded[name] = nil
-end
diff --git a/tex/context/base/l-package.lua b/tex/context/base/l-package.lua
new file mode 100644
index 000000000..a695531c9
--- /dev/null
+++ b/tex/context/base/l-package.lua
@@ -0,0 +1,338 @@
+if not modules then modules = { } end modules ['l-package'] = {
+    version   = 1.001,
+    comment   = "companion to luat-lib.mkiv",
+    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+    copyright = "PRAGMA ADE / ConTeXt Development Team",
+    license   = "see context related readme files"
+}
+
+-- Code moved from data-lua and changed into a plug-in.
+
+-- We overload the regular loader. We do so because we operate mostly in
+-- tds and use our own loader code. Alternatively we could use a more
+-- extensive definition of package.path and package.cpath but even then
+-- we're not done. Also, we now have better tracing.
+--
+-- -- local mylib = require("libtest")
+-- -- local mysql = require("luasql.mysql")
+
+local type = type
+local gsub, format = string.gsub, string.format
+
+local P, S, Cs, lpegmatch = lpeg.P, lpeg.S, lpeg.Cs, lpeg.match
+
+local package    = package
+local searchers  = package.searchers or package.loaders
+
+-- dummies
+
+local filejoin   = file and file.join        or function(path,name)   return path .. "/" .. name end
+local isreadable = file and file.is_readable or function(name)        local f = io.open(name) if f then f:close() return true end end
+local addsuffix  = file and file.addsuffix   or function(name,suffix) return name .. "." .. suffix end
+
+--
+
+-- local separator, concatinator, placeholder, pathofexecutable, ignorebefore = string.match(package.config,"(.-)\n(.-)\n(.-)\n(.-)\n(.-)\n")
+--
+-- local config = {
+--     separator        = separator,           -- \ or /
+--     concatinator     = concatinator,        -- ;
+--     placeholder      = placeholder,         -- ? becomes name
+--     pathofexecutable = pathofexecutable,    -- ! becomes executables dir (on windows)
+--     ignorebefore     = ignorebefore,        -- - remove all before this when making lua_open
+-- }
+
+--
+
+local function cleanpath(path) -- hm, don't we have a helper for this?
+    return path
+end
+
+local pattern = Cs((((1-S("\\/"))^0 * (S("\\/")^1/"/"))^0 * (P(".")^1/"/"+P(1))^1) * -1)
+
+local function lualibfile(name)
+    return lpegmatch(pattern,name) or name
+end
+
+local helpers = package.helpers or {
+    cleanpath  = cleanpath,
+    lualibfile = lualibfile,
+    trace      = false,
+    report     = function(...) print(format(...)) end,
+    builtin    = {
+        ["preload table"]       = package.searchers[1], -- special case, built-in libs
+        ["path specification"]  = package.searchers[2],
+        ["cpath specification"] = package.searchers[3],
+        ["all in one fallback"] = package.searchers[4], -- special case, combined libs
+    },
+    methods    = {
+    },
+    sequence   = {
+        "already loaded",
+        "preload table",
+        "lua extra list",
+        "lib extra list",
+        "path specification",
+        "cpath specification",
+        "all in one fallback",
+        "not loaded",
+    }
+}
+
+package.helpers  = helpers
+
+local methods = helpers.methods
+local builtin = helpers.builtin
+
+-- extra tds/ctx paths
+
+local extraluapaths = { }
+local extralibpaths = { }
+local luapaths      = nil -- delayed
+local libpaths      = nil -- delayed
+
+local function getextraluapaths()
+    return extraluapaths
+end
+
+local function getextralibpaths()
+    return extralibpaths
+end
+
+local function getluapaths()
+    luapaths = luapaths or file.splitpath(package.path, ";")
+    return luapaths
+end
+
+local function getlibpaths()
+    libpaths = libpaths or file.splitpath(package.cpath, ";")
+    return libpaths
+end
+
+package.luapaths      = getluapaths
+package.libpaths      = getlibpaths
+package.extraluapaths = getextraluapaths
+package.extralibpaths = getextralibpaths
+
+local hashes = {
+    lua = { },
+    lib = { },
+}
+
+local function registerpath(tag,what,target,...)
+    local pathlist  = { ... }
+    local cleanpath = helpers.cleanpath
+    local trace     = helpers.trace
+    local report    = helpers.report
+    local hash      = hashes[what]
+    --
+    local function add(path)
+        local path = cleanpath(path)
+        if not hash[path] then
+            target[#target+1] = path
+            hash[path]        = true
+            if trace then
+                report("registered %s path %s: %s",tag,#target,path)
+            end
+        else
+            if trace then
+                report("duplicate %s path: %s",tag,path)
+            end
+        end
+    end
+    --
+    for p=1,#pathlist do
+        local path = pathlist[p]
+        if type(path) == "table" then
+            for i=1,#path do
+                add(path[i])
+            end
+        else
+            add(path)
+        end
+    end
+    return paths
+end
+
+helpers.registerpath = registerpath
+
+function package.extraluapath(...)
+    registerpath("extra lua","lua",extraluapaths,...)
+end
+
+function package.extralibpath(...)
+    registerpath("extra lib","lib",extralibpaths,...)
+end
+
+-- lib loader (used elsewhere)
+
+local function loadedaslib(resolved,rawname) -- todo: strip all before first -
+ -- local init = "luaopen_" .. string.match(rawname,".-([^%.]+)$")
+    local init = "luaopen_"..gsub(rawname,"%.","_")
+    if helpers.trace then
+        helpers.report("calling loadlib with '%s' with init '%s'",resolved,init)
+    end
+    return package.loadlib(resolved,init)
+end
+
+helpers.loadedaslib = loadedaslib
+
+-- wrapped and new loaders
+
+local function loadedbypath(name,rawname,paths,islib,what)
+    local trace  = helpers.trace
+    local report = helpers.report
+    if trace then
+        report("locating '%s' as '%s' on '%s' paths",rawname,name,what)
+    end
+    for p=1,#paths do
+        local path = paths[p]
+        local resolved = filejoin(path,name)
+        if trace then -- mode detail
+            report("checking '%s' using '%s' path '%s'",name,what,path)
+        end
+        if isreadable(resolved) then
+            if trace then
+                report("'%s' located on '%s'",name,resolved)
+            end
+            local result = nil
+            if islib then
+                result = loadedaslib(resolved,rawname)
+            else
+                result = loadfile(resolved)
+            end
+            if result then
+                result()
+            end
+            return true, result
+        end
+    end
+end
+
+helpers.loadedbypath = loadedbypath
+
+-- alternatively we could set the package.searchers
+
+methods["already loaded"] = function(name)
+    local result = package.loaded[name]
+    if result then
+        return true, result
+    end
+end
+
+methods["preload table"] = function(name)
+    local result = builtin["preload table"](name)
+    if type(result) == "function" then
+        return true, result
+    end
+end
+
+methods["lua extra list"] = function(name)
+    local thename  = lualibfile(name)
+    local luaname  = addsuffix(thename,"lua")
+    local luapaths = getextraluapaths()
+    local done, result = loadedbypath(luaname,name,luapaths,false,"lua")
+    if done then
+        return true, result
+    end
+end
+
+methods["lib extra list"] = function(name)
+    local thename  = lualibfile(name)
+    local libname  = addsuffix(thename,os.libsuffix)
+    local libpaths = getextralibpaths()
+    local done, result = loadedbypath(libname,name,libpaths,true,"lib")
+    if done then
+        return true, result
+    end
+end
+
+local shown = false
+
+methods["path specification"] = function(name)
+    if not shown and helpers.trace then
+        local luapaths = getluapaths() -- triggers list building
+        if #luapaths > 0 then
+            helpers.report("using %s built in lua paths",#luapaths)
+        else
+            helpers.report("no built in lua paths defined")
+        end
+        shown = true
+    end
+    local result = builtin["path specification"](name)
+    if type(result) == "function" then
+        return true, result()
+    end
+end
+
+local shown = false
+
+methods["cpath specification"] = function(name)
+    if not shown and helpers.trace then
+        local libpaths = getlibpaths() -- triggers list building
+        if #libpaths > 0 then
+            helpers.report("using %s built in lib paths",#libpaths)
+        else
+            helpers.report("no built in lib paths defined")
+        end
+        shown = true
+    end
+    local result = builtin["cpath specification"](name)
+    if type(result) == "function" then
+        return true, result()
+    end
+end
+
+methods["all in one fallback"] = function(name)
+    local result = builtin["all in one fallback"](name)
+    if type(result) == "function" then
+        return true, result()
+    end
+end
+
+methods["not loaded"] = function(name)
+    if helpers.trace then
+        helpers.report("unable to locate '%s'",name)
+    end
+end
+
+function helpers.loaded(name)
+    local sequence = helpers.sequence
+    for i=1,#sequence do
+        local step = sequence[i]
+        if helpers.trace then
+            helpers.report("locating '%s' using method '%s'",name,step)
+        end
+        local done, result = methods[step](name)
+        if done then
+            if helpers.trace then
+                helpers.report("'%s' located via method '%s' returns '%s'",name,step,type(result))
+            end
+            if result then
+                package.loaded[name] = result
+            end
+            return result
+        end
+    end
+    return nil -- we must return a value
+end
+
+function helpers.unload(name)
+    if helpers.trace then
+        if package.loaded[name] then
+            helpers.report("unloading '%s', %s",name,"done")
+        else
+            helpers.report("unloading '%s', %s",name,"not loaded")
+        end
+    end
+    package.loaded[name] = nil -- does that work? is readable only, maybe we need our own hash
+end
+
+searchers[1] = nil
+searchers[2] = nil
+searchers[3] = nil
+searchers[4] = nil
+
+helpers.savedrequire = helpers.savedrequire or require
+
+require = helpers.loaded
diff --git a/tex/context/base/luat-bas.mkiv b/tex/context/base/luat-bas.mkiv
index e24568b0a..ddf901424 100644
--- a/tex/context/base/luat-bas.mkiv
+++ b/tex/context/base/luat-bas.mkiv
@@ -14,6 +14,7 @@
 \writestatus{loading}{ConTeXt Lua Macros / Basic Lua Libraries}
 
 \registerctxluafile{l-lua}     {1.001}
+\registerctxluafile{l-package} {1.001}
 \registerctxluafile{l-lpeg}    {1.001}
 \registerctxluafile{l-function}{1.001}
 \registerctxluafile{l-string}  {1.001}
diff --git a/tex/context/base/node-pro.lua b/tex/context/base/node-pro.lua
index 24351b5b8..60f2d8a72 100644
--- a/tex/context/base/node-pro.lua
+++ b/tex/context/base/node-pro.lua
@@ -123,6 +123,8 @@ local hpack = node.hpack
 function nodes.fasthpack(...) -- todo: pass explicit arguments
     enabled = false
     local hp, b = hpack(...)
+    hp.prev = nil
+    hp.next = nil
     enabled = true
     return hp, b
 end
diff --git a/tex/context/base/status-files.pdf b/tex/context/base/status-files.pdf
index d6ca0d33d..2930dd72e 100644
--- a/tex/context/base/status-files.pdf
+++ b/tex/context/base/status-files.pdf
diff --git a/tex/context/base/status-lua.pdf b/tex/context/base/status-lua.pdf
index d6e70ce92..82c891fd6 100644
--- a/tex/context/base/status-lua.pdf
+++ b/tex/context/base/status-lua.pdf
diff --git a/tex/context/base/symb-imp-cc.mkiv b/tex/context/base/symb-imp-cc.mkiv
index 742a19f9f..40274745b 100644
--- a/tex/context/base/symb-imp-cc.mkiv
+++ b/tex/context/base/symb-imp-cc.mkiv
@@ -17,27 +17,56 @@
    goodies=cc-icons,
    unicoding=yes]
 
-\definefontsynonym
-  [creativecommons]
-  [cc-icons*cc-icons]
+\doiffontpresentelse{ccicons.otf} { % redone ctan version
+    \definefontsynonym
+      [creativecommons]
+      [ccicons*cc-icons]
+} {                                 % official version
+    \definefontsynonym
+      [creativecommons]
+      [cc-icons*cc-icons]
+}
 
 \startsymbolset[cc]
+
     \definesymbol [sa]       [\getnamedglyphdirect{creativecommons}{sa}]
     \definesymbol [by]       [\getnamedglyphdirect{creativecommons}{by}]
     \definesymbol [cc]       [\getnamedglyphdirect{creativecommons}{cc}]
     \definesymbol [nd]       [\getnamedglyphdirect{creativecommons}{nd}]
     \definesymbol [nc]       [\getnamedglyphdirect{creativecommons}{nc}]
+    \definesymbol [ncus]     [\getnamedglyphdirect{creativecommons}{nc}]
+    \definesymbol [nceu]     [\getnamedglyphdirect{creativecommons}{nceu}]
+    \definesymbol [ncjp]     [\getnamedglyphdirect{creativecommons}{ncjp}]
+    \definesymbol [pd]       [\getnamedglyphdirect{creativecommons}{pd}]
     \definesymbol [sampling] [\getnamedglyphdirect{creativecommons}{sampling}]
     \definesymbol [share]    [\getnamedglyphdirect{creativecommons}{share}]
     \definesymbol [remix]    [\getnamedglyphdirect{creativecommons}{remix}]
+    \definesymbol [zero]     [\getnamedglyphdirect{creativecommons}{zero}]
     \definesymbol [logo]     [\getnamedglyphdirect{creativecommons}{logo}]
 
-    \definesymbol [cc-by-sa-nc] [\dontleavehmode\lower.15ex\hbox\bgroup
-        \getnamedglyphdirect{creativecommons}{cc}\enspace
-        \getnamedglyphdirect{creativecommons}{by}\enspace
-        \getnamedglyphdirect{creativecommons}{sa}\enspace
-        \getnamedglyphdirect{creativecommons}{nc}%
-    \egroup]
+    % \definesymbol [cc-by-sa-nc] [\dontleavehmode\lower.15ex\hbox\bgroup
+    %     \getnamedglyphdirect{creativecommons}{cc}\enspace
+    %     \getnamedglyphdirect{creativecommons}{by}\enspace
+    %     \getnamedglyphdirect{creativecommons}{sa}\enspace
+    %     \getnamedglyphdirect{creativecommons}{nc}%
+    % \egroup]
+    %
+    % % more efficient:
+    %
+    % \definesymbol [cc-by-sa-nc] [\dontleavehmode\lower.15ex\hbox\bgroup
+    %     \directsymbol{cc}{cc}\enspace\directsymbol{cc}{by}\enspace
+    %     \directsymbol{cc}{sa}\enspace\directsymbol{cc}{nc}%
+    % \egroup]
+    %
+    % % more fun:
+
+    \unexpanded\def\creativecommons#1%
+      {\dontleavehmode\lower.15\exheight\hbox\bgroup
+         \let\inbetween\relax
+         \processseparatedlist[#1][-]{\inbetween\let\inbetween\enspace\directsymbol{cc}}%
+       \egroup}
+
+    \definesymbol [cc-by-sa-nc] [\creativecommons{cc-by-sa-nc}]
 
 \stopsymbolset
 
diff --git a/tex/context/base/trac-vis.lua b/tex/context/base/trac-vis.lua
index 1138bacc8..df4909c3e 100644
--- a/tex/context/base/trac-vis.lua
+++ b/tex/context/base/trac-vis.lua
@@ -44,6 +44,7 @@ local glue_code           = nodecodes.glue
 local penalty_code        = nodecodes.penalty
 local whatsit_code        = nodecodes.whatsit
 local user_code           = nodecodes.user
+local gluespec_code       = nodecodes.gluespec
 
 local kerncodes           = nodes.kerncodes
 local font_kern_code      = kerncodes.fontkern
@@ -521,8 +522,12 @@ local function ruledbox(head,current,vertical,layer,what,simple)
             next.prev = info
         end
         if prev then
+if prev.id == gluespec_code then
+    -- weird, how can this happen, an inline glue-spec
+else
             info.prev = prev
             prev.next = info
+end
         end
         if head == current then
             return info, info
diff --git a/tex/context/base/util-lib.lua b/tex/context/base/util-lib.lua
index 7d43e6c97..2ec3d395c 100644
--- a/tex/context/base/util-lib.lua
+++ b/tex/context/base/util-lib.lua
@@ -90,10 +90,11 @@ local trace_swiglib  = false  trackers.register("resolvers.swiglib", function(v)
 local done = false
 
 local function requireswiglib(required,version)
+    local trace_swiglib = trace_swiglib or package.helpers.trace
     local library = loaded[required]
     if library == nil then
         -- initialize a few variables
-        local required_full = gsub(required,"%.","/")
+        local required_full = gsub(required,"%.","/") -- package.helpers.lualibfile
         local required_path = pathpart(required_full)
         local required_base = nameonly(required_full)
         local required_name = required_base .. "." .. os.libsuffix
@@ -101,7 +102,7 @@ local function requireswiglib(required,version)
         local engine        = environment.ownmain or false
         --
         if trace_swiglib and not done then
-            local list = resolvers.expandedpathlistfromvariable("lib")
+            local list = resolvers.expandedpathlistfromvariable("lib") -- fresh, no reuse
             for i=1,#list do
                report_swiglib("tds path %i: %s",i,list[i])
             end
@@ -191,7 +192,7 @@ local function requireswiglib(required,version)
         -- load and initialize when found
         if not found_library then
             if trace_swiglib then
-                report_swiglib("not found: %a",asked_library)
+                report_swiglib("not found: %a",required)
             end
             library = false
         else
diff --git a/tex/context/fonts/cc-icons.lfg b/tex/context/fonts/cc-icons.lfg
index 2739918af..902de05b3 100644
--- a/tex/context/fonts/cc-icons.lfg
+++ b/tex/context/fonts/cc-icons.lfg
@@ -13,10 +13,14 @@ return {
             by       = utfbyte("b"),
             cc       = utfbyte("c"),
             nd       = utfbyte("d"),
+        --  nceu     = utfbyte("e"),
             nc       = utfbyte("n"),
             sampling = utfbyte("m"),
+         -- pd       = utfbyte("p"),
             share    = utfbyte("s"),
             remix    = utfbyte("r"),
+         -- ncjp     = utfbyte("y"),
+         -- zero     = utfbyte("z"),
             logo     = utfbyte("C"),
         },
     },
diff --git a/tex/context/fonts/ccicons.lfg b/tex/context/fonts/ccicons.lfg
new file mode 100644
index 000000000..a09c78fc4
--- /dev/null
+++ b/tex/context/fonts/ccicons.lfg
@@ -0,0 +1,27 @@
+local utfbyte = utf.byte
+
+return {
+    name = "cc-icons",
+    version = "1.00",
+    comment = "Goodies that complement creative commons icons (ctan variant).",
+    author = "Hans Hagen",
+    copyright = "ConTeXt development team",
+    remapping = {
+        tounicode = true,
+        unicodes = {
+            sa       = utfbyte("a"),
+            by       = utfbyte("b"),
+            cc       = utfbyte("c"), -- logo (so not the same name)
+            nd       = utfbyte("d"),
+            nceu     = utfbyte("e"),
+            nc       = utfbyte("n"),
+            sampling = utfbyte("m"),
+            pd       = utfbyte("p"),
+            share    = utfbyte("s"),
+            remix    = utfbyte("r"),
+            ncjp     = utfbyte("y"),
+            zero     = utfbyte("z"),
+            logo     = 0x00A9,       -- copyright
+        },
+    },
+}
diff --git a/tex/generic/context/luatex/luatex-fonts-merged.lua b/tex/generic/context/luatex/luatex-fonts-merged.lua
index 8633b8e3a..62be360ed 100644
--- a/tex/generic/context/luatex/luatex-fonts-merged.lua
+++ b/tex/generic/context/luatex/luatex-fonts-merged.lua
@@ -1,6 +1,6 @@
 -- merged file : luatex-fonts-merged.lua
 -- parent file : luatex-fonts.lua
--- merge date  : 04/16/13 18:49:45
+-- merge date  : 04/17/13 17:29:33
 
 do -- begin closure to overcome local limits and interference
 
@@ -82,158 +82,6 @@ function optionalrequire(...)
     return result
   end
 end
-local type=type
-local gsub,format=string.gsub,string.format
-local package=package
-local searchers=package.searchers or package.loaders
-local libpaths=nil
-local clibpaths=nil
-local libhash={}
-local clibhash={}
-local libextras={}
-local clibextras={}
-local filejoin=file and file.join    or function(path,name)  return path.."/"..name end
-local isreadable=file and file.is_readable or function(name)    local f=io.open(name) if f then f:close() return true end end
-local addsuffix=file and file.addsuffix  or function(name,suffix) return name.."."..suffix end
-local function cleanpath(path) 
-  return path
-end
-local helpers=package.helpers or {
-  libpaths=function() return {} end,
-  clibpaths=function() return {} end,
-  cleanpath=cleanpath,
-  trace=false,
-  report=function(...) print(format(...)) end,
-}
-package.helpers=helpers
-local function getlibpaths()
-  return libpaths or helpers.libpaths(libhash)
-end
-local function getclibpaths()
-  return clibpaths or helpers.clibpaths(clibhash)
-end
-package.libpaths=getlibpaths
-package.clibpaths=getclibpaths
-local function addpath(what,paths,extras,hash,...)
-  local pathlist={... }
-  local cleanpath=helpers.cleanpath
-  local trace=helpers.trace
-  local report=helpers.report
-  local function add(path)
-    local path=cleanpath(path)
-    if not hash[path] then
-      if trace then
-        report("extra %s path: %s",what,path)
-      end
-      paths [#paths+1]=path
-      extras[#extras+1]=path
-    end
-  end
-  for p=1,#pathlist do
-    local path=pathlist[p]
-    if type(path)=="table" then
-      for i=1,#path do
-        add(path[i])
-      end
-    else
-      add(path)
-    end
-  end
-  return paths,extras
-end
-function package.extralibpath(...)
-   libpaths,libextras=addpath("lua",getlibpaths(),libextras,libhash,...)
-end
-function package.extraclibpath(...)
-  clibpaths,clibextras=addpath("lib",getclibpaths(),clibextras,clibhash,...)
-end
-if not searchers[-2] then
-  searchers[-2]=searchers[2]
-end
-searchers[2]=function(name)
-  return helpers.loaded(name)
-end
-searchers[3]=nil 
-local function loadedaslib(resolved,rawname)
-  local init="luaopen_"..gsub(rawname,"%.","_")
-  if helpers.trace then
-    helpers.report("calling loadlib with '%s' with init '%s'",resolved,init)
-  end
-  return package.loadlib(resolved,init)
-end
-local function loadedbylua(name)
-  if helpers.trace then
-    helpers.report("locating '%s' using normal loader",name)
-  end
-  return true,searchers[-2](name) 
-end
-local function loadedbypath(name,rawname,paths,islib,what)
-  local trace=helpers.trace
-  local report=helpers.report
-  if trace then
-    report("locating '%s' as '%s' on '%s' paths",rawname,name,what)
-  end
-  for p=1,#paths do
-    local path=paths[p]
-    local resolved=filejoin(path,name)
-    if trace then 
-      report("checking for '%s' using '%s' path '%s'",name,what,path)
-    end
-    if isreadable(resolved) then
-      if trace then
-        report("lib '%s' located on '%s'",name,resolved)
-      end
-      if islib then
-        return true,loadedaslib(resolved,rawname)
-      else
-        return true,loadfile(resolved)
-      end
-    end
-  end
-end
-local function notloaded(name)
-  if helpers.trace then
-    helpers.report("unable to locate library '%s'",name)
-  end
-end
-helpers.loadedaslib=loadedaslib
-helpers.loadedbylua=loadedbylua
-helpers.loadedbypath=loadedbypath
-helpers.notloaded=notloaded
-function helpers.loaded(name)
-  local thename=gsub(name,"%.","/")
-  local luaname=addsuffix(thename,"lua")
-  local libname=addsuffix(thename,os.libsuffix or "so") 
-  local libpaths=getlibpaths()
-  local clibpaths=getclibpaths()
-  local done,result=loadedbypath(luaname,name,libpaths,false,"lua")
-  if done then
-    return result
-  end
-  local done,result=loadedbypath(luaname,name,clibpaths,false,"lua")
-  if done then
-    return result
-  end
-  local done,result=loadedbypath(libname,name,clibpaths,true,"lib")
-  if done then
-    return result
-  end
-  local done,result=loadedbylua(name)
-  if done then
-    return result
-  end
-  return notloaded(name)
-end
-function helpers.unload(name)
-  if helpers.trace then
-    if package.loaded[name] then
-      helpers.report("unloading library '%s', %s",name,"done")
-    else
-      helpers.report("unloading library '%s', %s",name,"not loaded")
-    end
-  end
-  package.loaded[name]=nil
-end
 
 end -- closure
 
@@ -5172,6 +5020,7 @@ local lpegmatch=lpeg.match
 local reversed,concat,remove=table.reversed,table.concat,table.remove
 local ioflush=io.flush
 local fastcopy,tohash,derivetable=table.fastcopy,table.tohash,table.derive
+local formatters=string.formatters
 local allocate=utilities.storage.allocate
 local registertracker=trackers.register
 local registerdirective=directives.register
@@ -5190,7 +5039,7 @@ local report_otf=logs.reporter("fonts","otf loading")
 local fonts=fonts
 local otf=fonts.handlers.otf
 otf.glists={ "gsub","gpos" }
-otf.version=2.741 
+otf.version=2.742 
 otf.cache=containers.define("fonts","otf",otf.version,true)
 local fontdata=fonts.hashes.identifiers
 local chardata=characters and characters.data 
@@ -6153,7 +6002,18 @@ local function t_hashed(t,cache)
     return nil
   end
 end
-local s_hashed=t_hashed
+local function s_hashed(t,cache)
+  if t then
+    local ht={}
+    local tf=t[1]
+    for i=1,#tf do
+      ht[i]={ [tf[i]]=true }
+    end
+    return ht
+  else
+    return nil
+  end
+end
 local function r_uncover(splitter,cache,cover,replacements)
   if cover=="" then
     return nil