2015-07-01 21:42:00

6 files changed, 966 insertions, 49 deletions

diff --git a/scripts/context/lua/mtx-fonts.lua b/scripts/context/lua/mtx-fonts.lua
index 7f2a6a87f..dde145e50 100644
--- a/scripts/context/lua/mtx-fonts.lua
+++ b/scripts/context/lua/mtx-fonts.lua
@@ -10,7 +10,7 @@ local getargument = environment.getargument
 local setargument = environment.setargument
 local givenfiles  = environment.files
 
-local otfversion  = 2.815
+local otfversion  = 2.816
 
 local helpinfo = [[
 <?xml version="1.0"?>
diff --git a/scripts/context/lua/mtxlibs.lua b/scripts/context/lua/mtxlibs.lua
index 30567d3e0..91eb9f9fa 100644
--- a/scripts/context/lua/mtxlibs.lua
+++ b/scripts/context/lua/mtxlibs.lua
@@ -89,6 +89,7 @@ local ownlibs = {
     "util-str.lua",
     "util-tab.lua",
     "util-fil.lua",
+    "util-sac.lua",
     "util-sto.lua",
  -- "util-lua.lua", -- no need for compiling
     "util-prs.lua",
diff --git a/scripts/context/lua/mtxrun.lua b/scripts/context/lua/mtxrun.lua
index 111691f61..19a23ceca 100644
--- a/scripts/context/lua/mtxrun.lua
+++ b/scripts/context/lua/mtxrun.lua
@@ -6575,7 +6575,7 @@ do -- create closure to overcome 200 locals limit
 
 package.loaded["util-fil"] = package.loaded["util-fil"] or true
 
--- original size: 2521, stripped down to: 1962
+-- original size: 3387, stripped down to: 2739
 
 if not modules then modules={} end modules ['util-fil']={
   version=1.001,
@@ -6589,17 +6589,61 @@ local extract=bit32.extract
 utilities=utilities or {}
 local files={}
 utilities.files=files
+local zerobased={}
+function files.open(filename,zb)
+  local f=io.open(filename,"rb")
+  zerobased[f]=zb or false
+  return f
+end
+function files.close(f)
+  zerobased[f]=nil
+  f:close()
+end
+function files.size(f)
+  return f:seek("end")
+end
+function files.setposition(f,n)
+  if zerobased[f] then
+    f:seek("set",n)
+  else
+    f:seek("set",n-1)
+  end
+end
+function files.getposition(f)
+  if zerobased[f] then
+    return f:seek()
+  else
+    return f:seek()+1
+  end
+end
+function files.look(f,n,chars)
+  local p=f:seek()
+  local s=f:read(n)
+  f:seek("set",p)
+  if chars then
+    return s
+  else
+    return byte(s,1,#s)
+  end
+end
+function files.skip(f,n)
+  if n==1 then
+    f:read(n)
+  else
+    f:seek("set",f:seek()+n)
+  end
+end
 function files.readbyte(f)
   return byte(f:read(1))
 end
-function files.readchar(f)
-  return f:read(1)
-end
 function files.readbytes(f,n)
   return byte(f:read(n),1,n)
 end
-function files.skipbytes(f,n)
-  f:read(n or 1) 
+function files.readchar(f)
+  return f:read(1)
+end
+function files.readstring(f,n)
+  return f:read(n or 1)
 end
 function files.readinteger1(f) 
   local n=byte(f:read(1))
@@ -6651,9 +6695,6 @@ function files.readfixed4(f)
     return n+(0x100*c+d)/0xFFFF
   end
 end
-function files.readstring(f,n)
-  return f:read(n or 1)
-end
 function files.read2dot14(f)
   local a,b=byte(f:read(2),1,2)
   local n=0x100*a+b
@@ -6666,6 +6707,193 @@ function files.read2dot14(f)
     return n+m/0x4000
   end
 end
+function files.skipshort(f,n)
+  f:read(2*(n or 1))
+end
+function files.skiplong(f,n)
+  f:read(4*(n or 1))
+end
+
+
+end -- of closure
+
+do -- create closure to overcome 200 locals limit
+
+package.loaded["util-sac"] = package.loaded["util-sac"] or true
+
+-- original size: 4062, stripped down to: 3208
+
+if not modules then modules={} end modules ['util-sac']={
+  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 byte,sub=string.byte,string.sub
+local extract=bit32.extract
+utilities=utilities or {}
+local streams={}
+utilities.streams=streams
+function streams.open(filename,zerobased)
+  local f=io.loaddata(filename)
+  return { f,1,#f,zerobased or false }
+end
+function streams.close()
+end
+function streams.size(f)
+  return f and f[3] or 0
+end
+function streams.setposition(f,i)
+  if f[4] then
+    if i<=0 then
+      f[2]=1
+    else
+      f[2]=i+1
+    end
+  else
+    if i<=1 then
+      f[2]=1
+    else
+      f[2]=i
+    end
+  end
+end
+function streams.getposition(f)
+  if f[4] then
+    return f[2]-1
+  else
+    return f[2]
+  end
+end
+function streams.look(f,n,chars)
+  local b=f[2]
+  local e=b+n-1
+  if chars then
+    return sub(f[1],b,e)
+  else
+    return byte(f[1],b,e)
+  end
+end
+function streams.skip(f,n)
+  f[2]=f[2]+n
+end
+function streams.readbyte(f)
+  local i=f[2]
+  f[2]=i+1
+  return byte(f[1],i)
+end
+function streams.readbytes(f,n)
+  local i=f[2]
+  local j=i+n
+  f[2]=j
+  return byte(f[1],i,j-1)
+end
+function streams.skipbytes(f,n)
+  f[2]=f[2]+n
+end
+function streams.readchar(f)
+  local i=f[2]
+  f[2]=i+1
+  return sub(f[1],i,i)
+end
+function streams.readstring(f,n)
+  local i=f[2]
+  local j=i+n
+  f[2]=j
+  return sub(f[1],i,j-1)
+end
+function streams.readinteger1(f) 
+  local i=f[2]
+  f[2]=i+1
+  local n=byte(f[1],i)
+  if n>=0x80 then
+    return n-0xFF-1
+  else
+    return n
+  end
+end
+streams.readcardinal1=streams.readbyte 
+streams.readcardinal=streams.readcardinal1
+streams.readinteger=streams.readinteger1
+function streams.readcardinal2(f)
+  local i=f[2]
+  local j=i+1
+  f[2]=j+1
+  local a,b=byte(f[1],i,j)
+  return 0x100*a+b
+end
+function streams.readinteger2(f)
+  local i=f[2]
+  local j=i+1
+  f[2]=j+1
+  local a,b=byte(f[1],i,j)
+  local n=0x100*a+b
+  if n>=0x8000 then
+    return n-0xFFFF-1
+  else
+    return n
+  end
+end
+function streams.readcardinal3(f)
+  local i=f[2]
+  local j=i+2
+  f[2]=j+1
+  local a,b,c=byte(f[1],i,j)
+  return 0x10000*a+0x100*b+c
+end
+function streams.readcardinal4(f)
+  local i=f[2]
+  local j=i+3
+  f[2]=j+1
+  local a,b,c,d=byte(f[1],i,j)
+  return 0x1000000*a+0x10000*b+0x100*c+d
+end
+function streams.readinteger4(f)
+  local i=f[2]
+  local j=i+3
+  f[2]=j+1
+  local a,b,c,d=byte(f[1],i,j)
+  local n=0x1000000*a+0x10000*b+0x100*c+d
+  if n>=0x8000000 then
+    return n-0xFFFFFFFF-1
+  else
+    return n
+  end
+end
+function streams.readfixed4(f)
+  local i=f[2]
+  local j=i+3
+  f[2]=j+1
+  local a,b,c,d=byte(f[1],i,j)
+  local n=0x100*a+b
+  if n>=0x8000 then
+    return n-0xFFFF-1+(0x100*c+d)/0xFFFF
+  else
+    return n+(0x100*c+d)/0xFFFF
+  end
+end
+function streams.read2dot14(f)
+  local i=f[2]
+  local j=i+1
+  f[2]=j+1
+  local a,b=byte(f[1],i,j)
+  local n=0x100*a+b
+  local m=extract(n,0,30)
+  if n>0x7FFF then
+    n=extract(n,30,2)
+    return m/0x4000-4
+  else
+    n=extract(n,30,2)
+    return n+m/0x4000
+  end
+end
+function streams.skipshort(f,n)
+  f[2]=f[2]+2*(n or 1)
+end
+function streams.skiplong(f,n)
+  f[2]=f[2]+4*(n or 1)
+end
 
 
 end -- of closure
@@ -18106,10 +18334,10 @@ end
 
 end -- of closure
 
--- 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-gzip.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-fil.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-gzip.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-fil.lua util-sac.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    : 752548
--- stripped bytes    : 271649
+-- original bytes    : 757476
+-- stripped bytes    : 272592
 
 -- end library merge
 
@@ -18154,6 +18382,7 @@ local ownlibs = { -- order can be made better
     'util-str.lua', -- code might move to l-string
     'util-tab.lua',
     'util-fil.lua',
+    'util-sac.lua',
     'util-sto.lua',
     'util-prs.lua',
     'util-fmt.lua',
diff --git a/scripts/context/stubs/mswin/mtxrun.lua b/scripts/context/stubs/mswin/mtxrun.lua
index 111691f61..19a23ceca 100644
--- a/scripts/context/stubs/mswin/mtxrun.lua
+++ b/scripts/context/stubs/mswin/mtxrun.lua
@@ -6575,7 +6575,7 @@ do -- create closure to overcome 200 locals limit
 
 package.loaded["util-fil"] = package.loaded["util-fil"] or true
 
--- original size: 2521, stripped down to: 1962
+-- original size: 3387, stripped down to: 2739
 
 if not modules then modules={} end modules ['util-fil']={
   version=1.001,
@@ -6589,17 +6589,61 @@ local extract=bit32.extract
 utilities=utilities or {}
 local files={}
 utilities.files=files
+local zerobased={}
+function files.open(filename,zb)
+  local f=io.open(filename,"rb")
+  zerobased[f]=zb or false
+  return f
+end
+function files.close(f)
+  zerobased[f]=nil
+  f:close()
+end
+function files.size(f)
+  return f:seek("end")
+end
+function files.setposition(f,n)
+  if zerobased[f] then
+    f:seek("set",n)
+  else
+    f:seek("set",n-1)
+  end
+end
+function files.getposition(f)
+  if zerobased[f] then
+    return f:seek()
+  else
+    return f:seek()+1
+  end
+end
+function files.look(f,n,chars)
+  local p=f:seek()
+  local s=f:read(n)
+  f:seek("set",p)
+  if chars then
+    return s
+  else
+    return byte(s,1,#s)
+  end
+end
+function files.skip(f,n)
+  if n==1 then
+    f:read(n)
+  else
+    f:seek("set",f:seek()+n)
+  end
+end
 function files.readbyte(f)
   return byte(f:read(1))
 end
-function files.readchar(f)
-  return f:read(1)
-end
 function files.readbytes(f,n)
   return byte(f:read(n),1,n)
 end
-function files.skipbytes(f,n)
-  f:read(n or 1) 
+function files.readchar(f)
+  return f:read(1)
+end
+function files.readstring(f,n)
+  return f:read(n or 1)
 end
 function files.readinteger1(f) 
   local n=byte(f:read(1))
@@ -6651,9 +6695,6 @@ function files.readfixed4(f)
     return n+(0x100*c+d)/0xFFFF
   end
 end
-function files.readstring(f,n)
-  return f:read(n or 1)
-end
 function files.read2dot14(f)
   local a,b=byte(f:read(2),1,2)
   local n=0x100*a+b
@@ -6666,6 +6707,193 @@ function files.read2dot14(f)
     return n+m/0x4000
   end
 end
+function files.skipshort(f,n)
+  f:read(2*(n or 1))
+end
+function files.skiplong(f,n)
+  f:read(4*(n or 1))
+end
+
+
+end -- of closure
+
+do -- create closure to overcome 200 locals limit
+
+package.loaded["util-sac"] = package.loaded["util-sac"] or true
+
+-- original size: 4062, stripped down to: 3208
+
+if not modules then modules={} end modules ['util-sac']={
+  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 byte,sub=string.byte,string.sub
+local extract=bit32.extract
+utilities=utilities or {}
+local streams={}
+utilities.streams=streams
+function streams.open(filename,zerobased)
+  local f=io.loaddata(filename)
+  return { f,1,#f,zerobased or false }
+end
+function streams.close()
+end
+function streams.size(f)
+  return f and f[3] or 0
+end
+function streams.setposition(f,i)
+  if f[4] then
+    if i<=0 then
+      f[2]=1
+    else
+      f[2]=i+1
+    end
+  else
+    if i<=1 then
+      f[2]=1
+    else
+      f[2]=i
+    end
+  end
+end
+function streams.getposition(f)
+  if f[4] then
+    return f[2]-1
+  else
+    return f[2]
+  end
+end
+function streams.look(f,n,chars)
+  local b=f[2]
+  local e=b+n-1
+  if chars then
+    return sub(f[1],b,e)
+  else
+    return byte(f[1],b,e)
+  end
+end
+function streams.skip(f,n)
+  f[2]=f[2]+n
+end
+function streams.readbyte(f)
+  local i=f[2]
+  f[2]=i+1
+  return byte(f[1],i)
+end
+function streams.readbytes(f,n)
+  local i=f[2]
+  local j=i+n
+  f[2]=j
+  return byte(f[1],i,j-1)
+end
+function streams.skipbytes(f,n)
+  f[2]=f[2]+n
+end
+function streams.readchar(f)
+  local i=f[2]
+  f[2]=i+1
+  return sub(f[1],i,i)
+end
+function streams.readstring(f,n)
+  local i=f[2]
+  local j=i+n
+  f[2]=j
+  return sub(f[1],i,j-1)
+end
+function streams.readinteger1(f) 
+  local i=f[2]
+  f[2]=i+1
+  local n=byte(f[1],i)
+  if n>=0x80 then
+    return n-0xFF-1
+  else
+    return n
+  end
+end
+streams.readcardinal1=streams.readbyte 
+streams.readcardinal=streams.readcardinal1
+streams.readinteger=streams.readinteger1
+function streams.readcardinal2(f)
+  local i=f[2]
+  local j=i+1
+  f[2]=j+1
+  local a,b=byte(f[1],i,j)
+  return 0x100*a+b
+end
+function streams.readinteger2(f)
+  local i=f[2]
+  local j=i+1
+  f[2]=j+1
+  local a,b=byte(f[1],i,j)
+  local n=0x100*a+b
+  if n>=0x8000 then
+    return n-0xFFFF-1
+  else
+    return n
+  end
+end
+function streams.readcardinal3(f)
+  local i=f[2]
+  local j=i+2
+  f[2]=j+1
+  local a,b,c=byte(f[1],i,j)
+  return 0x10000*a+0x100*b+c
+end
+function streams.readcardinal4(f)
+  local i=f[2]
+  local j=i+3
+  f[2]=j+1
+  local a,b,c,d=byte(f[1],i,j)
+  return 0x1000000*a+0x10000*b+0x100*c+d
+end
+function streams.readinteger4(f)
+  local i=f[2]
+  local j=i+3
+  f[2]=j+1
+  local a,b,c,d=byte(f[1],i,j)
+  local n=0x1000000*a+0x10000*b+0x100*c+d
+  if n>=0x8000000 then
+    return n-0xFFFFFFFF-1
+  else
+    return n
+  end
+end
+function streams.readfixed4(f)
+  local i=f[2]
+  local j=i+3
+  f[2]=j+1
+  local a,b,c,d=byte(f[1],i,j)
+  local n=0x100*a+b
+  if n>=0x8000 then
+    return n-0xFFFF-1+(0x100*c+d)/0xFFFF
+  else
+    return n+(0x100*c+d)/0xFFFF
+  end
+end
+function streams.read2dot14(f)
+  local i=f[2]
+  local j=i+1
+  f[2]=j+1
+  local a,b=byte(f[1],i,j)
+  local n=0x100*a+b
+  local m=extract(n,0,30)
+  if n>0x7FFF then
+    n=extract(n,30,2)
+    return m/0x4000-4
+  else
+    n=extract(n,30,2)
+    return n+m/0x4000
+  end
+end
+function streams.skipshort(f,n)
+  f[2]=f[2]+2*(n or 1)
+end
+function streams.skiplong(f,n)
+  f[2]=f[2]+4*(n or 1)
+end
 
 
 end -- of closure
@@ -18106,10 +18334,10 @@ end
 
 end -- of closure
 
--- 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-gzip.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-fil.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-gzip.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-fil.lua util-sac.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    : 752548
--- stripped bytes    : 271649
+-- original bytes    : 757476
+-- stripped bytes    : 272592
 
 -- end library merge
 
@@ -18154,6 +18382,7 @@ local ownlibs = { -- order can be made better
     'util-str.lua', -- code might move to l-string
     'util-tab.lua',
     'util-fil.lua',
+    'util-sac.lua',
     'util-sto.lua',
     'util-prs.lua',
     'util-fmt.lua',
diff --git a/scripts/context/stubs/unix/mtxrun b/scripts/context/stubs/unix/mtxrun
index 111691f61..19a23ceca 100644
--- a/scripts/context/stubs/unix/mtxrun
+++ b/scripts/context/stubs/unix/mtxrun
@@ -6575,7 +6575,7 @@ do -- create closure to overcome 200 locals limit
 
 package.loaded["util-fil"] = package.loaded["util-fil"] or true
 
--- original size: 2521, stripped down to: 1962
+-- original size: 3387, stripped down to: 2739
 
 if not modules then modules={} end modules ['util-fil']={
   version=1.001,
@@ -6589,17 +6589,61 @@ local extract=bit32.extract
 utilities=utilities or {}
 local files={}
 utilities.files=files
+local zerobased={}
+function files.open(filename,zb)
+  local f=io.open(filename,"rb")
+  zerobased[f]=zb or false
+  return f
+end
+function files.close(f)
+  zerobased[f]=nil
+  f:close()
+end
+function files.size(f)
+  return f:seek("end")
+end
+function files.setposition(f,n)
+  if zerobased[f] then
+    f:seek("set",n)
+  else
+    f:seek("set",n-1)
+  end
+end
+function files.getposition(f)
+  if zerobased[f] then
+    return f:seek()
+  else
+    return f:seek()+1
+  end
+end
+function files.look(f,n,chars)
+  local p=f:seek()
+  local s=f:read(n)
+  f:seek("set",p)
+  if chars then
+    return s
+  else
+    return byte(s,1,#s)
+  end
+end
+function files.skip(f,n)
+  if n==1 then
+    f:read(n)
+  else
+    f:seek("set",f:seek()+n)
+  end
+end
 function files.readbyte(f)
   return byte(f:read(1))
 end
-function files.readchar(f)
-  return f:read(1)
-end
 function files.readbytes(f,n)
   return byte(f:read(n),1,n)
 end
-function files.skipbytes(f,n)
-  f:read(n or 1) 
+function files.readchar(f)
+  return f:read(1)
+end
+function files.readstring(f,n)
+  return f:read(n or 1)
 end
 function files.readinteger1(f) 
   local n=byte(f:read(1))
@@ -6651,9 +6695,6 @@ function files.readfixed4(f)
     return n+(0x100*c+d)/0xFFFF
   end
 end
-function files.readstring(f,n)
-  return f:read(n or 1)
-end
 function files.read2dot14(f)
   local a,b=byte(f:read(2),1,2)
   local n=0x100*a+b
@@ -6666,6 +6707,193 @@ function files.read2dot14(f)
     return n+m/0x4000
   end
 end
+function files.skipshort(f,n)
+  f:read(2*(n or 1))
+end
+function files.skiplong(f,n)
+  f:read(4*(n or 1))
+end
+
+
+end -- of closure
+
+do -- create closure to overcome 200 locals limit
+
+package.loaded["util-sac"] = package.loaded["util-sac"] or true
+
+-- original size: 4062, stripped down to: 3208
+
+if not modules then modules={} end modules ['util-sac']={
+  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 byte,sub=string.byte,string.sub
+local extract=bit32.extract
+utilities=utilities or {}
+local streams={}
+utilities.streams=streams
+function streams.open(filename,zerobased)
+  local f=io.loaddata(filename)
+  return { f,1,#f,zerobased or false }
+end
+function streams.close()
+end
+function streams.size(f)
+  return f and f[3] or 0
+end
+function streams.setposition(f,i)
+  if f[4] then
+    if i<=0 then
+      f[2]=1
+    else
+      f[2]=i+1
+    end
+  else
+    if i<=1 then
+      f[2]=1
+    else
+      f[2]=i
+    end
+  end
+end
+function streams.getposition(f)
+  if f[4] then
+    return f[2]-1
+  else
+    return f[2]
+  end
+end
+function streams.look(f,n,chars)
+  local b=f[2]
+  local e=b+n-1
+  if chars then
+    return sub(f[1],b,e)
+  else
+    return byte(f[1],b,e)
+  end
+end
+function streams.skip(f,n)
+  f[2]=f[2]+n
+end
+function streams.readbyte(f)
+  local i=f[2]
+  f[2]=i+1
+  return byte(f[1],i)
+end
+function streams.readbytes(f,n)
+  local i=f[2]
+  local j=i+n
+  f[2]=j
+  return byte(f[1],i,j-1)
+end
+function streams.skipbytes(f,n)
+  f[2]=f[2]+n
+end
+function streams.readchar(f)
+  local i=f[2]
+  f[2]=i+1
+  return sub(f[1],i,i)
+end
+function streams.readstring(f,n)
+  local i=f[2]
+  local j=i+n
+  f[2]=j
+  return sub(f[1],i,j-1)
+end
+function streams.readinteger1(f) 
+  local i=f[2]
+  f[2]=i+1
+  local n=byte(f[1],i)
+  if n>=0x80 then
+    return n-0xFF-1
+  else
+    return n
+  end
+end
+streams.readcardinal1=streams.readbyte 
+streams.readcardinal=streams.readcardinal1
+streams.readinteger=streams.readinteger1
+function streams.readcardinal2(f)
+  local i=f[2]
+  local j=i+1
+  f[2]=j+1
+  local a,b=byte(f[1],i,j)
+  return 0x100*a+b
+end
+function streams.readinteger2(f)
+  local i=f[2]
+  local j=i+1
+  f[2]=j+1
+  local a,b=byte(f[1],i,j)
+  local n=0x100*a+b
+  if n>=0x8000 then
+    return n-0xFFFF-1
+  else
+    return n
+  end
+end
+function streams.readcardinal3(f)
+  local i=f[2]
+  local j=i+2
+  f[2]=j+1
+  local a,b,c=byte(f[1],i,j)
+  return 0x10000*a+0x100*b+c
+end
+function streams.readcardinal4(f)
+  local i=f[2]
+  local j=i+3
+  f[2]=j+1
+  local a,b,c,d=byte(f[1],i,j)
+  return 0x1000000*a+0x10000*b+0x100*c+d
+end
+function streams.readinteger4(f)
+  local i=f[2]
+  local j=i+3
+  f[2]=j+1
+  local a,b,c,d=byte(f[1],i,j)
+  local n=0x1000000*a+0x10000*b+0x100*c+d
+  if n>=0x8000000 then
+    return n-0xFFFFFFFF-1
+  else
+    return n
+  end
+end
+function streams.readfixed4(f)
+  local i=f[2]
+  local j=i+3
+  f[2]=j+1
+  local a,b,c,d=byte(f[1],i,j)
+  local n=0x100*a+b
+  if n>=0x8000 then
+    return n-0xFFFF-1+(0x100*c+d)/0xFFFF
+  else
+    return n+(0x100*c+d)/0xFFFF
+  end
+end
+function streams.read2dot14(f)
+  local i=f[2]
+  local j=i+1
+  f[2]=j+1
+  local a,b=byte(f[1],i,j)
+  local n=0x100*a+b
+  local m=extract(n,0,30)
+  if n>0x7FFF then
+    n=extract(n,30,2)
+    return m/0x4000-4
+  else
+    n=extract(n,30,2)
+    return n+m/0x4000
+  end
+end
+function streams.skipshort(f,n)
+  f[2]=f[2]+2*(n or 1)
+end
+function streams.skiplong(f,n)
+  f[2]=f[2]+4*(n or 1)
+end
 
 
 end -- of closure
@@ -18106,10 +18334,10 @@ end
 
 end -- of closure
 
--- 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-gzip.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-fil.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-gzip.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-fil.lua util-sac.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    : 752548
--- stripped bytes    : 271649
+-- original bytes    : 757476
+-- stripped bytes    : 272592
 
 -- end library merge
 
@@ -18154,6 +18382,7 @@ local ownlibs = { -- order can be made better
     'util-str.lua', -- code might move to l-string
     'util-tab.lua',
     'util-fil.lua',
+    'util-sac.lua',
     'util-sto.lua',
     'util-prs.lua',
     'util-fmt.lua',
diff --git a/scripts/context/stubs/win64/mtxrun.lua b/scripts/context/stubs/win64/mtxrun.lua
index 111691f61..19a23ceca 100644
--- a/scripts/context/stubs/win64/mtxrun.lua
+++ b/scripts/context/stubs/win64/mtxrun.lua
@@ -6575,7 +6575,7 @@ do -- create closure to overcome 200 locals limit
 
 package.loaded["util-fil"] = package.loaded["util-fil"] or true
 
--- original size: 2521, stripped down to: 1962
+-- original size: 3387, stripped down to: 2739
 
 if not modules then modules={} end modules ['util-fil']={
   version=1.001,
@@ -6589,17 +6589,61 @@ local extract=bit32.extract
 utilities=utilities or {}
 local files={}
 utilities.files=files
+local zerobased={}
+function files.open(filename,zb)
+  local f=io.open(filename,"rb")
+  zerobased[f]=zb or false
+  return f
+end
+function files.close(f)
+  zerobased[f]=nil
+  f:close()
+end
+function files.size(f)
+  return f:seek("end")
+end
+function files.setposition(f,n)
+  if zerobased[f] then
+    f:seek("set",n)
+  else
+    f:seek("set",n-1)
+  end
+end
+function files.getposition(f)
+  if zerobased[f] then
+    return f:seek()
+  else
+    return f:seek()+1
+  end
+end
+function files.look(f,n,chars)
+  local p=f:seek()
+  local s=f:read(n)
+  f:seek("set",p)
+  if chars then
+    return s
+  else
+    return byte(s,1,#s)
+  end
+end
+function files.skip(f,n)
+  if n==1 then
+    f:read(n)
+  else
+    f:seek("set",f:seek()+n)
+  end
+end
 function files.readbyte(f)
   return byte(f:read(1))
 end
-function files.readchar(f)
-  return f:read(1)
-end
 function files.readbytes(f,n)
   return byte(f:read(n),1,n)
 end
-function files.skipbytes(f,n)
-  f:read(n or 1) 
+function files.readchar(f)
+  return f:read(1)
+end
+function files.readstring(f,n)
+  return f:read(n or 1)
 end
 function files.readinteger1(f) 
   local n=byte(f:read(1))
@@ -6651,9 +6695,6 @@ function files.readfixed4(f)
     return n+(0x100*c+d)/0xFFFF
   end
 end
-function files.readstring(f,n)
-  return f:read(n or 1)
-end
 function files.read2dot14(f)
   local a,b=byte(f:read(2),1,2)
   local n=0x100*a+b
@@ -6666,6 +6707,193 @@ function files.read2dot14(f)
     return n+m/0x4000
   end
 end
+function files.skipshort(f,n)
+  f:read(2*(n or 1))
+end
+function files.skiplong(f,n)
+  f:read(4*(n or 1))
+end
+
+
+end -- of closure
+
+do -- create closure to overcome 200 locals limit
+
+package.loaded["util-sac"] = package.loaded["util-sac"] or true
+
+-- original size: 4062, stripped down to: 3208
+
+if not modules then modules={} end modules ['util-sac']={
+  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 byte,sub=string.byte,string.sub
+local extract=bit32.extract
+utilities=utilities or {}
+local streams={}
+utilities.streams=streams
+function streams.open(filename,zerobased)
+  local f=io.loaddata(filename)
+  return { f,1,#f,zerobased or false }
+end
+function streams.close()
+end
+function streams.size(f)
+  return f and f[3] or 0
+end
+function streams.setposition(f,i)
+  if f[4] then
+    if i<=0 then
+      f[2]=1
+    else
+      f[2]=i+1
+    end
+  else
+    if i<=1 then
+      f[2]=1
+    else
+      f[2]=i
+    end
+  end
+end
+function streams.getposition(f)
+  if f[4] then
+    return f[2]-1
+  else
+    return f[2]
+  end
+end
+function streams.look(f,n,chars)
+  local b=f[2]
+  local e=b+n-1
+  if chars then
+    return sub(f[1],b,e)
+  else
+    return byte(f[1],b,e)
+  end
+end
+function streams.skip(f,n)
+  f[2]=f[2]+n
+end
+function streams.readbyte(f)
+  local i=f[2]
+  f[2]=i+1
+  return byte(f[1],i)
+end
+function streams.readbytes(f,n)
+  local i=f[2]
+  local j=i+n
+  f[2]=j
+  return byte(f[1],i,j-1)
+end
+function streams.skipbytes(f,n)
+  f[2]=f[2]+n
+end
+function streams.readchar(f)
+  local i=f[2]
+  f[2]=i+1
+  return sub(f[1],i,i)
+end
+function streams.readstring(f,n)
+  local i=f[2]
+  local j=i+n
+  f[2]=j
+  return sub(f[1],i,j-1)
+end
+function streams.readinteger1(f) 
+  local i=f[2]
+  f[2]=i+1
+  local n=byte(f[1],i)
+  if n>=0x80 then
+    return n-0xFF-1
+  else
+    return n
+  end
+end
+streams.readcardinal1=streams.readbyte 
+streams.readcardinal=streams.readcardinal1
+streams.readinteger=streams.readinteger1
+function streams.readcardinal2(f)
+  local i=f[2]
+  local j=i+1
+  f[2]=j+1
+  local a,b=byte(f[1],i,j)
+  return 0x100*a+b
+end
+function streams.readinteger2(f)
+  local i=f[2]
+  local j=i+1
+  f[2]=j+1
+  local a,b=byte(f[1],i,j)
+  local n=0x100*a+b
+  if n>=0x8000 then
+    return n-0xFFFF-1
+  else
+    return n
+  end
+end
+function streams.readcardinal3(f)
+  local i=f[2]
+  local j=i+2
+  f[2]=j+1
+  local a,b,c=byte(f[1],i,j)
+  return 0x10000*a+0x100*b+c
+end
+function streams.readcardinal4(f)
+  local i=f[2]
+  local j=i+3
+  f[2]=j+1
+  local a,b,c,d=byte(f[1],i,j)
+  return 0x1000000*a+0x10000*b+0x100*c+d
+end
+function streams.readinteger4(f)
+  local i=f[2]
+  local j=i+3
+  f[2]=j+1
+  local a,b,c,d=byte(f[1],i,j)
+  local n=0x1000000*a+0x10000*b+0x100*c+d
+  if n>=0x8000000 then
+    return n-0xFFFFFFFF-1
+  else
+    return n
+  end
+end
+function streams.readfixed4(f)
+  local i=f[2]
+  local j=i+3
+  f[2]=j+1
+  local a,b,c,d=byte(f[1],i,j)
+  local n=0x100*a+b
+  if n>=0x8000 then
+    return n-0xFFFF-1+(0x100*c+d)/0xFFFF
+  else
+    return n+(0x100*c+d)/0xFFFF
+  end
+end
+function streams.read2dot14(f)
+  local i=f[2]
+  local j=i+1
+  f[2]=j+1
+  local a,b=byte(f[1],i,j)
+  local n=0x100*a+b
+  local m=extract(n,0,30)
+  if n>0x7FFF then
+    n=extract(n,30,2)
+    return m/0x4000-4
+  else
+    n=extract(n,30,2)
+    return n+m/0x4000
+  end
+end
+function streams.skipshort(f,n)
+  f[2]=f[2]+2*(n or 1)
+end
+function streams.skiplong(f,n)
+  f[2]=f[2]+4*(n or 1)
+end
 
 
 end -- of closure
@@ -18106,10 +18334,10 @@ end
 
 end -- of closure
 
--- 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-gzip.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-fil.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-gzip.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-fil.lua util-sac.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    : 752548
--- stripped bytes    : 271649
+-- original bytes    : 757476
+-- stripped bytes    : 272592
 
 -- end library merge
 
@@ -18154,6 +18382,7 @@ local ownlibs = { -- order can be made better
     'util-str.lua', -- code might move to l-string
     'util-tab.lua',
     'util-fil.lua',
+    'util-sac.lua',
     'util-sto.lua',
     'util-prs.lua',
     'util-fmt.lua',