- use of external Perl now requires kpathsea variable

          TEXLIVE_WINDOWS_TRY_EXTERNAL_PERL to be explicitly set to 1
        - alias_table replaced with if-elseif-end tests to streamline 
          special cases and to avoid hardcoding of texmf* file paths
        - added a2ping to special cases (requires -x switch to Perl)
        - set ASYMPTOTE_GS (for asy) to full path to tlgs



git-svn-id: svn://tug.org/texlive/trunk@20870 c570f23f-e606-0410-a88d-b1316a301751

3 files changed, 206 insertions, 207 deletions

diff --git a/Build/source/texk/texlive/w32_wrapper/readme.txt b/Build/source/texk/texlive/w32_wrapper/readme.txt
index 29b3aefcb85..5304ba10097 100644
--- a/Build/source/texk/texlive/w32_wrapper/readme.txt
+++ b/Build/source/texk/texlive/w32_wrapper/readme.txt
@@ -197,4 +197,11 @@
         - added support for all tex4ht commands from mk4ht.pl
         - removed some unsued aliases
         - some code refactoring and cleanup
+    2010/12/28
+        - use of external Perl now requires kpathsea variable
+          TEXLIVE_WINDOWS_TRY_EXTERNAL_PERL to be explicitly set to 1
+        - alias_table replaced with if-elseif-end tests to streamline 
+          special cases and to avoid hardcoding of texmf* file paths
+        - added a2ping to special cases (requires -x switch to Perl)
+        - set ASYMPTOTE_GS (for asy) to full path to tlgs
 
diff --git a/Build/source/texk/texlive/w32_wrapper/runscript.tlu b/Build/source/texk/texlive/w32_wrapper/runscript.tlu
index 5043c9c00e9..65803a8d3db 100644
--- a/Build/source/texk/texlive/w32_wrapper/runscript.tlu
+++ b/Build/source/texk/texlive/w32_wrapper/runscript.tlu
@@ -210,6 +210,13 @@ local docstr = [[
         - added support for all tex4ht commands from mk4ht.pl

         - removed some unsued aliases

         - some code refactoring and cleanup

+    2010/12/28

+        - use of external Perl now requires kpathsea variable

+          TEXLIVE_WINDOWS_TRY_EXTERNAL_PERL to be explicitly set to 1

+        - alias_table replaced with if-elseif-end tests to streamline 

+          special cases and to avoid hardcoding of texmf* file paths

+        - added a2ping to special cases (requires -x switch to Perl)

+        - set ASYMPTOTE_GS (for asy) to full path to tlgs

 ]]

 

 -- HELPER SUBROUTINES --

@@ -268,6 +275,7 @@ end
 

 -- locates texmfscript to execute

 local function find_texmfscript(progname, ext_list)

+  ext_list = ext_list or '\0'

   for ext in string.gmatch(ext_list, '[^;]+') do

     local progfullname = kpse.find_file(progname..ext, 'texmfscripts')

     if progfullname then return progfullname, ext end

@@ -409,21 +417,28 @@ kpse.set_program_name(lua_binary, progname)
 local TEXDIR = kpse.var_value('SELFAUTOPARENT')

 local BINDIR = kpse.var_value('SELFAUTOLOC')

 local PATH = os.getenv('PATH') or ''

+-- restricted programs

+local shell_escape_commands = string.lower(kpse.var_value('shell_escape_commands') or '')

+local is_restricted_progname = string.find( ','..shell_escape_commands..',', 

+                                            ','..progname..',', 1, true)

+if is_restricted_progname then

+  -- limit search path to the restricted (system) trees 

+  -- (not really necessary for entries in the alias_table, 

+  -- because they are not searched for with kpathsea)

+  os.setenv('TEXMFSCRIPTS', kpse.var_value('TEXMF_RESTRICTED_SCRIPTS'))

+end

 -- perl stuff

 local scripts4tlperl = {

-  texdoctk = true, 

   tlperl = true, 

   updmap = true, 

   ['updmap-sys'] = true, 

 }

-local PERLEXE = search_path('perl.exe', PATH)

-if not PERLEXE or guimode or scripts4tlperl[progname] then 

+local try_extern_perl = (kpse.var_value('TEXLIVE_WINDOWS_TRY_EXTERNAL_PERL') == '1') and 

+                        not (guimode or is_restricted_progname or scripts4tlperl[progname])

+PERLEXE = try_extern_perl and search_path('perl.exe', PATH)

+if not PERLEXE then 

   PERLEXE = TEXDIR..'/tlpkg/tlperl/bin/perl.exe'

-  os.setenv('PERL5LIB', TEXDIR..'/tlpkg/tlperl/lib')--[[

-  local PERL5SHELL = os.getenv('COMSPEC')

-  PERL5SHELL = string.gsub(PERL5SHELL, '\\', '\\\\') 

-  PERL5SHELL = string.gsub(PERL5SHELL, ' ', '\\ ') 

-  os.setenv('PERL5SHELL', PERL5SHELL..' /x /c')--]]

+  os.setenv('PERL5LIB', TEXDIR..'/tlpkg/tlperl/lib')

   PATH = prepend_path(PATH, TEXDIR..'/tlpkg/tlperl/bin')

 end

 -- gs stuff

@@ -437,77 +452,9 @@ if sysprog then
   os.setenv('TEXMFVAR', kpse.var_value('TEXMFSYSVAR'))

   os.setenv('TEXMFCONFIG', kpse.var_value('TEXMFSYSCONFIG'))

 end

--- restricted programs

-local shell_escape_commands = string.lower(kpse.var_value('shell_escape_commands'))

-if string.find(','..shell_escape_commands..',', ','..progname..',', 1, true) then

-  -- limit search path to the restricted (system) trees 

-  -- (not really necessary for entries in the alias_table, 

-  -- because they are not searched for with kpathsea)

-  os.setenv('TEXMFSCRIPTS', kpse.var_value('TEXMF_RESTRICTED_SCRIPTS'))

-end

 -- Adobe Reader crash case: make sure USERPROFILE is not "slashed"

 os.setenv("USERPROFILE", os.getenv("USERPROFILE"):gsub('/', '\\'))

 

--- alias table (programs with special needs)

-

-local alias_table = {

-  asy = 

-    function ()

-      -- TODO: check if ASYMPTOTE_GS requires quoting of names with spaces

-      --os.setenv('ASYMPTOTE_GS', _q(TEXDIR..'/tlpkg/tlgs/bin/gswin32c.exe'))

-      os.setenv('ASYMPTOTE_GS', 'gswin32c.exe')

-      os.setenv('CYGWIN', 'nodosfilewarning')

-      return {[0]=TEXDIR..'/tlpkg/asymptote/asy.exe', 'asy', argline}

-    end,

-  dviout = 

-    function ()

-      local fontsdir = kpse.var_value('TEXMFVAR') .. '/fonts'

-      if (lfs.attributes(fontsdir, 'mode') ~= 'directory') then 

-        assert(mkdir_plus(fontsdir))

-      end

-      local tfmpath = kpse.show_path('tfm')

-      tfmpath = string.gsub(tfmpath, '!!', '')

-      tfmpath = string.gsub(tfmpath, '/', '\\')

-      local texrt = {}

-      for d in string.gmatch(tfmpath, '([^;]+\\fonts)\\tfm[^;]*') do

-        if (lfs.attributes(d, 'mode') == 'directory') then 

-          table.insert(texrt, d)

-        end

-      end

-      local dvioutpar = [[-NULL -dpi=600 "-gen=']] .. string.gsub(TEXDIR, '/', '\\') .. [[\tlpkg\dviout\gen_pk'" ]] ..

-      [["-TEXPK=^r\pk\\^s.^dpk;^r\tfm\\^s^tfm;^r\vf\\^s.vf;^r\ovf\\^s.ovf;^r\tfm\\^s.tfm" "-TEXROOT=']] ..

-      table.concat(texrt, ';') .. [['"]]

-      return {[0]=TEXDIR..'/tlpkg/dviout/dviout.exe', 'dviout', dvioutpar, argline}

-    end,

-  fontinst = {[0]=BINDIR..'/tex.exe', 'tex', 

-    '-progname=fontinst', '-fmt=tex', argline},

-  psv = {[0]=TEXDIR..'/tlpkg/tlpsv/gswxlua.exe', 'gswxlua', 

-    '-l', _q(TEXDIR..'/tlpkg/tlpsv/psv.wx.lua'),

-    '-p', _q(TEXDIR..'/tlpkg/tlpsv/psv_view.ps'), '-sINPUT='..argline},

-  repstopdf = {[0]=PERLEXE, 'perl', 

-    _q(TEXDIR..'/texmf-dist/scripts/epstopdf/epstopdf.pl'), 

-    '--restricted', argline},

-  rpdfcrop = {[0]=PERLEXE, 'perl', 

-    _q(TEXDIR..'/texmf-dist/scripts/pdfcrop/pdfcrop.pl'), 

-    '--restricted', argline},

-  texworks = 

-    function ()

-      local winver = tonumber(string.match(os.uname().version, '%D*(%d+\.?%d*)'))

-      assert(winver >= 5.01, "Windows XP or newer required to run TeXworks")

-      local TW_LIBPATH = kpse.var_value('TW_LIBPATH') or 

-                         kpse.var_value('TEXMFCONFIG')..'/texworks'

-      local TW_INIPATH = kpse.var_value('TW_INIPATH') or TW_LIBPATH

-      os.setenv('TW_LIBPATH', TW_LIBPATH)

-      os.setenv('TW_INIPATH', TW_INIPATH)

-      if (TW_INIPATH and lfs.attributes(TW_INIPATH, 'mode') ~= 'directory') then

-        assert(mkdir_plus(TW_INIPATH))

-      end

-      return {[0]=TEXDIR..'/tlpkg/texworks/texworks.exe', 'texworks', argline}

-    end,

-  tlgs = {[0]=TEXDIR..'/tlpkg/tlgs/bin/gswin32c.exe', 'gswin32c', argline},

-  tlperl = {[0]=PERLEXE, 'perl', argline},

-}

-

 -- extension to interpeter mapping

 

 -- the extension is mapped to argv table

@@ -536,52 +483,101 @@ extension_map['.js']  = extension_map['.vbs']
 

 -- set up argv table

 

-local program = alias_table[progname]

-if program then -- special case (alias)

-  if (type(program) == 'function') then 

-    program = program() 

+local ARGV = nil

+

+-- special cases

+

+if is_tex4ht_command(progname) then

+  argline = progname .. ' ' .. argline

+  progname = 'mk4ht'

+elseif progname == 'a2ping' then 

+  table.insert(extension_map['.pl'], '-x')

+elseif progname == 'asy' then

+  os.setenv('ASYMPTOTE_GS', TEXDIR..'/tlpkg/tlgs/bin/gswin32c.exe')

+  os.setenv('CYGWIN', 'nodosfilewarning')

+  ARGV = {[0]=TEXDIR..'/tlpkg/asymptote/asy.exe', 'asy'}

+elseif progname == 'dviout' then

+  local fontsdir = kpse.var_value('TEXMFVAR') .. '/fonts'

+  if (lfs.attributes(fontsdir, 'mode') ~= 'directory') then 

+    assert(mkdir_plus(fontsdir))

   end

-else -- general case (no alias)

-  local progfullname = search_path(progname, BINDIR, '.tlu;.bat;.cmd')

-  if not progfullname then

-    progfullname = find_texmfscript(progname, 

-      '.tlu;.texlua;.lua;.pl;.rb;.py;.tcl;.jar;.vbs;.js;.bat;.cmd;\0')

+  local tfmpath = kpse.show_path('tfm')

+  tfmpath = string.gsub(tfmpath, '!!', '')

+  tfmpath = string.gsub(tfmpath, '/', '\\')

+  local texrt = {}

+  for d in string.gmatch(tfmpath, '([^;]+\\fonts)\\tfm[^;]*') do

+    if (lfs.attributes(d, 'mode') == 'directory') then 

+      table.insert(texrt, d)

+    end

   end

-  if not progfullname and is_tex4ht_command(progname) then

-    argline = progname .. ' ' .. argline

-    progfullname = find_texmfscript('mk4ht', '.pl')

+  local par = [[-NULL -dpi=600 "-gen=']] .. string.gsub(TEXDIR, '/', '\\') .. 

+              [[\tlpkg\dviout\gen_pk'" "-TEXPK=^r\pk\\^s.^dpk;^r\tfm\\^s^tfm;]] ..

+              [[^r\vf\\^s.vf;^r\ovf\\^s.ovf;^r\tfm\\^s.tfm" "-TEXROOT=']] ..

+              table.concat(texrt, ';') .. [['"]]

+  ARGV = {[0]=TEXDIR..'/tlpkg/dviout/dviout.exe', 'dviout', par}

+elseif progname == 'fontinst' then

+  ARGV = {[0]=BINDIR..'/tex.exe', 'tex', '-progname=fontinst', '-fmt=tex'}

+elseif progname == 'psv' then

+  argline = '-sINPUT='..argline

+  ARGV = {[0]=TEXDIR..'/tlpkg/tlpsv/gswxlua.exe', 'gswxlua', 

+          '-l', _q(TEXDIR..'/tlpkg/tlpsv/psv.wx.lua'),

+          '-p', _q(TEXDIR..'/tlpkg/tlpsv/psv_view.ps')}

+elseif progname == 'repstopdf' or progname == 'rpdfcrop' then

+  argline = '--restricted ' .. argline

+  progname = string.sub(progname, 2, -1)

+elseif progname == 'texworks' then

+  local winver = tonumber(string.match(os.uname().version, '%D*(%d+\.?%d*)'))

+  assert(winver >= 5.01, "Windows XP or newer required to run TeXworks")

+  local TW_LIBPATH = kpse.var_value('TW_LIBPATH') or 

+                     kpse.var_value('TEXMFCONFIG')..'/texworks'

+  local TW_INIPATH = kpse.var_value('TW_INIPATH') or TW_LIBPATH

+  os.setenv('TW_LIBPATH', TW_LIBPATH)

+  os.setenv('TW_INIPATH', TW_INIPATH)

+  if (TW_INIPATH and lfs.attributes(TW_INIPATH, 'mode') ~= 'directory') then

+    -- TeXworks needs directory holding its configuration to exist

+    assert(mkdir_plus(TW_INIPATH))

   end

-  assert(progfullname, "no appropriate script or program found: " .. progname)

+  ARGV = {[0]=TEXDIR..'/tlpkg/texworks/texworks.exe', 'texworks'}

+elseif progname == 'tlgs' then

+  ARGV = {[0]=TEXDIR..'/tlpkg/tlgs/bin/gswin32c.exe', 'gswin32c'}

+elseif progname == 'tlperl' then

+  ARGV = {[0]=PERLEXE, 'perl'}

+end

+

+-- general case

+

+if not ARGV then

+  local extlist = '.tlu;.texlua;.lua;.pl;.rb;.py;.tcl;.jar;.vbs;.js;.bat;.cmd;\0'

+  local progfullname = search_path(progname, BINDIR, '.tlu;.bat;.cmd') or

+                       assert(find_texmfscript(progname, extlist))

   local ext = string.match(string.lower(progfullname), '%.[^\\/.]*$') or ''

   if (ext == '.lua') or (ext == '.tlu') or (ext == '.texlua') then -- lua script

     arg[0] = progfullname

-    program = progfullname

   else

-    program = extension_map[ext] or assert(shebang_to_argv(progfullname)) 

-    table.insert(program, _q(progfullname))

-    table.insert(program, argline)

-    if not program[0] then

-      program[0], program[1] = assert(check_command(program[1], PATH))

+    ARGV = extension_map[ext] or assert(shebang_to_argv(progfullname)) 

+    table.insert(ARGV, _q(progfullname))

+    if not ARGV[0] then

+      ARGV[0], ARGV[1] = assert(check_command(ARGV[1], PATH))

     end

   end

 end

 

 -- run the program/script

 

-if (type(program) == 'table') then

-  local ret = assert(os.spawn(program))

+if ARGV then

+  table.insert(ARGV, argline) -- pass through original arguments

+  local ret = assert(os.spawn(ARGV))

   if ret ~= 0 then

-    local dbginfo = debug.getinfo(1)
+    local dbginfo = debug.getinfo(1)

     local errormsg = string.format("%s:%d: command failed with exit code %d:\n%s",  

-      dbginfo.short_src, dbginfo.currentline - 2, ret, table.concat(program, ' ') )

-    os.setenv('RUNSCRIPT_ERROR_MESSAGE', errormsg)
-    io.stderr:write(errormsg, '\n')
+                                   dbginfo.short_src, dbginfo.currentline - 2, 

+                                   ret, table.concat(ARGV, ' ') )

+    os.setenv('RUNSCRIPT_ERROR_MESSAGE', errormsg)

+    io.stderr:write(errormsg, '\n')

   end

   os.exit(ret)

-elseif (type(program) == 'string') then

-  dofile(program)

-else

-  error("unexpected argument type: " .. type(program))

+else -- must be a lua script

+  dofile(arg[0])

 end

 

 end -- MAIN_CHUNK

diff --git a/Master/bin/win32/runscript.tlu b/Master/bin/win32/runscript.tlu
index 00c412d1a80..65803a8d3db 100644
--- a/Master/bin/win32/runscript.tlu
+++ b/Master/bin/win32/runscript.tlu
@@ -210,6 +210,13 @@ local docstr = [[
         - added support for all tex4ht commands from mk4ht.pl

         - removed some unsued aliases

         - some code refactoring and cleanup

+    2010/12/28

+        - use of external Perl now requires kpathsea variable

+          TEXLIVE_WINDOWS_TRY_EXTERNAL_PERL to be explicitly set to 1

+        - alias_table replaced with if-elseif-end tests to streamline 

+          special cases and to avoid hardcoding of texmf* file paths

+        - added a2ping to special cases (requires -x switch to Perl)

+        - set ASYMPTOTE_GS (for asy) to full path to tlgs

 ]]

 

 -- HELPER SUBROUTINES --

@@ -268,6 +275,7 @@ end
 

 -- locates texmfscript to execute

 local function find_texmfscript(progname, ext_list)

+  ext_list = ext_list or '\0'

   for ext in string.gmatch(ext_list, '[^;]+') do

     local progfullname = kpse.find_file(progname..ext, 'texmfscripts')

     if progfullname then return progfullname, ext end

@@ -409,21 +417,28 @@ kpse.set_program_name(lua_binary, progname)
 local TEXDIR = kpse.var_value('SELFAUTOPARENT')

 local BINDIR = kpse.var_value('SELFAUTOLOC')

 local PATH = os.getenv('PATH') or ''

+-- restricted programs

+local shell_escape_commands = string.lower(kpse.var_value('shell_escape_commands') or '')

+local is_restricted_progname = string.find( ','..shell_escape_commands..',', 

+                                            ','..progname..',', 1, true)

+if is_restricted_progname then

+  -- limit search path to the restricted (system) trees 

+  -- (not really necessary for entries in the alias_table, 

+  -- because they are not searched for with kpathsea)

+  os.setenv('TEXMFSCRIPTS', kpse.var_value('TEXMF_RESTRICTED_SCRIPTS'))

+end

 -- perl stuff

 local scripts4tlperl = {

-  texdoctk = true, 

   tlperl = true, 

   updmap = true, 

   ['updmap-sys'] = true, 

 }

-local PERLEXE = search_path('perl.exe', PATH)

-if not PERLEXE or guimode or scripts4tlperl[progname] then 

+local try_extern_perl = (kpse.var_value('TEXLIVE_WINDOWS_TRY_EXTERNAL_PERL') == '1') and 

+                        not (guimode or is_restricted_progname or scripts4tlperl[progname])

+PERLEXE = try_extern_perl and search_path('perl.exe', PATH)

+if not PERLEXE then 

   PERLEXE = TEXDIR..'/tlpkg/tlperl/bin/perl.exe'

-  os.setenv('PERL5LIB', TEXDIR..'/tlpkg/tlperl/lib')--[[

-  local PERL5SHELL = os.getenv('COMSPEC')

-  PERL5SHELL = string.gsub(PERL5SHELL, '\\', '\\\\') 

-  PERL5SHELL = string.gsub(PERL5SHELL, ' ', '\\ ') 

-  os.setenv('PERL5SHELL', PERL5SHELL..' /x /c')--]]

+  os.setenv('PERL5LIB', TEXDIR..'/tlpkg/tlperl/lib')

   PATH = prepend_path(PATH, TEXDIR..'/tlpkg/tlperl/bin')

 end

 -- gs stuff

@@ -437,77 +452,9 @@ if sysprog then
   os.setenv('TEXMFVAR', kpse.var_value('TEXMFSYSVAR'))

   os.setenv('TEXMFCONFIG', kpse.var_value('TEXMFSYSCONFIG'))

 end

--- restricted programs

-local shell_escape_commands = string.lower(kpse.var_value('shell_escape_commands'))

-if string.find(','..shell_escape_commands..',', ','..progname..',', 1, true) then

-  -- limit search path to the restricted (system) trees 

-  -- (not really necessary for entries in the alias_table, 

-  -- because they are not searched for with kpathsea)

-  os.setenv('TEXMFSCRIPTS', kpse.var_value('TEXMF_RESTRICTED_SCRIPTS'))

-end

 -- Adobe Reader crash case: make sure USERPROFILE is not "slashed"

 os.setenv("USERPROFILE", os.getenv("USERPROFILE"):gsub('/', '\\'))

 

--- alias table (programs with special needs)

-

-local alias_table = {

-  asy = 

-    function ()

-      -- TODO: check if ASYMPTOTE_GS requires quoting of names with spaces

-      --os.setenv('ASYMPTOTE_GS', _q(TEXDIR..'/tlpkg/tlgs/bin/gswin32c.exe'))

-      os.setenv('ASYMPTOTE_GS', 'gswin32c.exe')

-      os.setenv('CYGWIN', 'nodosfilewarning')

-      return {[0]=TEXDIR..'/tlpkg/asymptote/asy.exe', 'asy', argline}

-    end,

-  dviout = 

-    function ()

-      local fontsdir = kpse.var_value('TEXMFVAR') .. '/fonts'

-      if (lfs.attributes(fontsdir, 'mode') ~= 'directory') then 

-        assert(mkdir_plus(fontsdir))

-      end

-      local tfmpath = kpse.show_path('tfm')

-      tfmpath = string.gsub(tfmpath, '!!', '')

-      tfmpath = string.gsub(tfmpath, '/', '\\')

-      local texrt = {}

-      for d in string.gmatch(tfmpath, '([^;]+\\fonts)\\tfm[^;]*') do

-        if (lfs.attributes(d, 'mode') == 'directory') then 

-          table.insert(texrt, d)

-        end

-      end

-      local dvioutpar = [[-NULL -dpi=600 "-gen=']] .. string.gsub(TEXDIR, '/', '\\') .. [[\tlpkg\dviout\gen_pk'" ]] ..

-      [["-TEXPK=^r\pk\\^s.^dpk;^r\tfm\\^s^tfm;^r\vf\\^s.vf;^r\ovf\\^s.ovf;^r\tfm\\^s.tfm" "-TEXROOT=']] ..

-      table.concat(texrt, ';') .. [['"]]

-      return {[0]=TEXDIR..'/tlpkg/dviout/dviout.exe', 'dviout', dvioutpar, argline}

-    end,

-  fontinst = {[0]=BINDIR..'/tex.exe', 'tex', 

-    '-progname=fontinst', '-fmt=tex', argline},

-  psv = {[0]=TEXDIR..'/tlpkg/tlpsv/gswxlua.exe', 'gswxlua', 

-    '-l', _q(TEXDIR..'/tlpkg/tlpsv/psv.wx.lua'),

-    '-p', _q(TEXDIR..'/tlpkg/tlpsv/psv_view.ps'), '-sINPUT='..argline},

-  repstopdf = {[0]=PERLEXE, 'perl', 

-    _q(TEXDIR..'/texmf-dist/scripts/epstopdf/epstopdf.pl'), 

-    '--restricted', argline},

-  rpdfcrop = {[0]=PERLEXE, 'perl', 

-    _q(TEXDIR..'/texmf-dist/scripts/pdfcrop/pdfcrop.pl'), 

-    '--restricted', argline},

-  texworks = 

-    function ()

-      local winver = tonumber(string.match(os.uname().version, '%D*(%d+\.?%d*)'))

-      assert(winver >= 5.01, "Windows XP or newer required to run TeXworks")

-      local TW_LIBPATH = kpse.var_value('TW_LIBPATH') or 

-                         kpse.var_value('TEXMFCONFIG')..'/texworks'

-      local TW_INIPATH = kpse.var_value('TW_INIPATH') or TW_LIBPATH

-      os.setenv('TW_LIBPATH', TW_LIBPATH)

-      os.setenv('TW_INIPATH', TW_INIPATH)

-      if (TW_INIPATH and lfs.attributes(TW_INIPATH, 'mode') ~= 'directory') then

-        assert(mkdir_plus(TW_INIPATH))

-      end

-      return {[0]=TEXDIR..'/tlpkg/texworks/texworks.exe', 'texworks', argline}

-    end,

-  tlgs = {[0]=TEXDIR..'/tlpkg/tlgs/bin/gswin32c.exe', 'gswin32c', argline},

-  tlperl = {[0]=PERLEXE, 'perl', argline},

-}

-

 -- extension to interpeter mapping

 

 -- the extension is mapped to argv table

@@ -536,52 +483,101 @@ extension_map['.js']  = extension_map['.vbs']
 

 -- set up argv table

 

-local program = alias_table[progname]

-if program then -- special case (alias)

-  if (type(program) == 'function') then 

-    program = program() 

+local ARGV = nil

+

+-- special cases

+

+if is_tex4ht_command(progname) then

+  argline = progname .. ' ' .. argline

+  progname = 'mk4ht'

+elseif progname == 'a2ping' then 

+  table.insert(extension_map['.pl'], '-x')

+elseif progname == 'asy' then

+  os.setenv('ASYMPTOTE_GS', TEXDIR..'/tlpkg/tlgs/bin/gswin32c.exe')

+  os.setenv('CYGWIN', 'nodosfilewarning')

+  ARGV = {[0]=TEXDIR..'/tlpkg/asymptote/asy.exe', 'asy'}

+elseif progname == 'dviout' then

+  local fontsdir = kpse.var_value('TEXMFVAR') .. '/fonts'

+  if (lfs.attributes(fontsdir, 'mode') ~= 'directory') then 

+    assert(mkdir_plus(fontsdir))

   end

-else -- general case (no alias)

-  local progfullname = search_path(progname, BINDIR, '.tlu;.bat;.cmd')

-  if not progfullname then

-    progfullname = find_texmfscript(progname, 

-      '.tlu;.texlua;.lua;.pl;.rb;.py;.tcl;.jar;.vbs;.js;.bat;.cmd;\0')

+  local tfmpath = kpse.show_path('tfm')

+  tfmpath = string.gsub(tfmpath, '!!', '')

+  tfmpath = string.gsub(tfmpath, '/', '\\')

+  local texrt = {}

+  for d in string.gmatch(tfmpath, '([^;]+\\fonts)\\tfm[^;]*') do

+    if (lfs.attributes(d, 'mode') == 'directory') then 

+      table.insert(texrt, d)

+    end

   end

-  if not progfullname and is_tex4ht_command(progname) then

-    argline = progname .. ' ' .. argline

-    progfullname = find_texmfscript('mk4ht', '.pl')

+  local par = [[-NULL -dpi=600 "-gen=']] .. string.gsub(TEXDIR, '/', '\\') .. 

+              [[\tlpkg\dviout\gen_pk'" "-TEXPK=^r\pk\\^s.^dpk;^r\tfm\\^s^tfm;]] ..

+              [[^r\vf\\^s.vf;^r\ovf\\^s.ovf;^r\tfm\\^s.tfm" "-TEXROOT=']] ..

+              table.concat(texrt, ';') .. [['"]]

+  ARGV = {[0]=TEXDIR..'/tlpkg/dviout/dviout.exe', 'dviout', par}

+elseif progname == 'fontinst' then

+  ARGV = {[0]=BINDIR..'/tex.exe', 'tex', '-progname=fontinst', '-fmt=tex'}

+elseif progname == 'psv' then

+  argline = '-sINPUT='..argline

+  ARGV = {[0]=TEXDIR..'/tlpkg/tlpsv/gswxlua.exe', 'gswxlua', 

+          '-l', _q(TEXDIR..'/tlpkg/tlpsv/psv.wx.lua'),

+          '-p', _q(TEXDIR..'/tlpkg/tlpsv/psv_view.ps')}

+elseif progname == 'repstopdf' or progname == 'rpdfcrop' then

+  argline = '--restricted ' .. argline

+  progname = string.sub(progname, 2, -1)

+elseif progname == 'texworks' then

+  local winver = tonumber(string.match(os.uname().version, '%D*(%d+\.?%d*)'))

+  assert(winver >= 5.01, "Windows XP or newer required to run TeXworks")

+  local TW_LIBPATH = kpse.var_value('TW_LIBPATH') or 

+                     kpse.var_value('TEXMFCONFIG')..'/texworks'

+  local TW_INIPATH = kpse.var_value('TW_INIPATH') or TW_LIBPATH

+  os.setenv('TW_LIBPATH', TW_LIBPATH)

+  os.setenv('TW_INIPATH', TW_INIPATH)

+  if (TW_INIPATH and lfs.attributes(TW_INIPATH, 'mode') ~= 'directory') then

+    -- TeXworks needs directory holding its configuration to exist

+    assert(mkdir_plus(TW_INIPATH))

   end

-  assert(progfullname, "no appropriate script or program found: " .. progname)

+  ARGV = {[0]=TEXDIR..'/tlpkg/texworks/texworks.exe', 'texworks'}

+elseif progname == 'tlgs' then

+  ARGV = {[0]=TEXDIR..'/tlpkg/tlgs/bin/gswin32c.exe', 'gswin32c'}

+elseif progname == 'tlperl' then

+  ARGV = {[0]=PERLEXE, 'perl'}

+end

+

+-- general case

+

+if not ARGV then

+  local extlist = '.tlu;.texlua;.lua;.pl;.rb;.py;.tcl;.jar;.vbs;.js;.bat;.cmd;\0'

+  local progfullname = search_path(progname, BINDIR, '.tlu;.bat;.cmd') or

+                       assert(find_texmfscript(progname, extlist))

   local ext = string.match(string.lower(progfullname), '%.[^\\/.]*$') or ''

   if (ext == '.lua') or (ext == '.tlu') or (ext == '.texlua') then -- lua script

     arg[0] = progfullname

-    program = progfullname

   else

-    program = extension_map[ext] or assert(shebang_to_argv(progfullname)) 

-    table.insert(program, _q(progfullname))

-    table.insert(program, argline)

-    if not program[0] then

-      program[0], program[1] = assert(check_command(program[1], PATH))

+    ARGV = extension_map[ext] or assert(shebang_to_argv(progfullname)) 

+    table.insert(ARGV, _q(progfullname))

+    if not ARGV[0] then

+      ARGV[0], ARGV[1] = assert(check_command(ARGV[1], PATH))

     end

   end

 end

 

 -- run the program/script

 

-if (type(program) == 'table') then

-  local ret = assert(os.spawn(program))

+if ARGV then

+  table.insert(ARGV, argline) -- pass through original arguments

+  local ret = assert(os.spawn(ARGV))

   if ret ~= 0 then

     local dbginfo = debug.getinfo(1)

     local errormsg = string.format("%s:%d: command failed with exit code %d:\n%s",  

-      dbginfo.short_src, dbginfo.currentline - 2, ret, table.concat(program, ' ') )

+                                   dbginfo.short_src, dbginfo.currentline - 2, 

+                                   ret, table.concat(ARGV, ' ') )

     os.setenv('RUNSCRIPT_ERROR_MESSAGE', errormsg)

     io.stderr:write(errormsg, '\n')

   end

   os.exit(ret)

-elseif (type(program) == 'string') then

-  dofile(program)

-else

-  error("unexpected argument type: " .. type(program))

+else -- must be a lua script

+  dofile(arg[0])

 end

 

 end -- MAIN_CHUNK