ptex2pdf (19jan20)

git-svn-id: svn://tug.org/texlive/trunk@53457 c570f23f-e606-0410-a88d-b1316a301751

2 files changed, 29 insertions, 17 deletions

diff --git a/Master/texmf-dist/doc/latex/ptex2pdf/README.md b/Master/texmf-dist/doc/latex/ptex2pdf/README.md
index 6cbd1d68788..bf4890b6aa2 100644
--- a/Master/texmf-dist/doc/latex/ptex2pdf/README.md
+++ b/Master/texmf-dist/doc/latex/ptex2pdf/README.md
@@ -17,7 +17,7 @@ by dvipdfmx.
 ## Usage ##
 
 `````
-[texlua] ptex2pdf[.lua] { option | basename[.tex] } ... 
+[texlua] ptex2pdf[.lua] { option | basename[.tex] } ...
 options: -v  version
          -h  help
          -help print full help (installation, TeXworks setup)
@@ -160,18 +160,20 @@ http://github.com/texjporg/ptex2pdf
   first replace all backslash chars to slash chars  
 - version 20170622.0  
   pass all non-optional arguments before filename to TeX engine  
-- version 20180514.0
+- version 20180514.0  
   Windows: for uptex use command_line_encoding=utf8, for all other turn
   it off (set to none)
-- version 20181212.0
+- version 20181212.0  
   support directories containing dots (thanks kn1cht)
+- version 20200119.0  
+  check invalid PATH string beforehand on windows
 
 ## Copyright and License ##
 
 Originally based on musixtex.lua from Bob Tennent.
 
-(c) Copyright 2016-2018 Japanese TeX Development Community
-(c) Copyright 2013-2018 Norbert Preining norbert@preining.info
+(c) Copyright 2016-2020 Japanese TeX Development Community
+(c) Copyright 2013-2020 Norbert Preining norbert@preining.info
 (c) Copyright 2012      Bob Tennent rdt@cs.queensu.ca
 
 This program is free software; you can redistribute it and/or modify it
diff --git a/Master/texmf-dist/scripts/ptex2pdf/ptex2pdf.lua b/Master/texmf-dist/scripts/ptex2pdf/ptex2pdf.lua
index e05b75c4951..4f601437a1f 100755
--- a/Master/texmf-dist/scripts/ptex2pdf/ptex2pdf.lua
+++ b/Master/texmf-dist/scripts/ptex2pdf/ptex2pdf.lua
@@ -1,7 +1,7 @@
 #!/usr/bin/env texlua
 
 NAME = "ptex2pdf[.lua]"
-VERSION = "20181212.0"
+VERSION = "20200119.0"
 AUTHOR = "Norbert Preining"
 AUTHOREMAIL = "norbert@preining.info"
 SHORTDESC = "Convert Japanese TeX documents to pdf"
@@ -13,7 +13,7 @@ programs (ptex, uptex, eptex, euptex, platex, uplatex) followed
 by dvipdfmx.
 ]]
 USAGE = [[
-[texlua] ptex2pdf[.lua] { option | basename[.tex] } ... 
+[texlua] ptex2pdf[.lua] { option | basename[.tex] } ...
 options: -v  version
          -h  help
          -help print full help (installation, TeXworks setup)
@@ -29,8 +29,8 @@ options: -v  version
 LICENSECOPYRIGHT = [[
 Originally based on musixtex.lua from Bob Tennent.
 
-(c) Copyright 2016-2018 Japanese TeX Development Community
-(c) Copyright 2013-2018 Norbert Preining norbert@preining.info
+(c) Copyright 2016-2020 Japanese TeX Development Community
+(c) Copyright 2013-2020 Norbert Preining norbert@preining.info
 (c) Copyright 2012      Bob Tennent rdt@cs.queensu.ca
 
 This program is free software; you can redistribute it and/or modify it
@@ -174,11 +174,13 @@ CHANGELOG = [[
   first replace all backslash chars to slash chars  
 - version 20170622.0  
   pass all non-optional arguments before filename to TeX engine  
-- version 20180514.0
+- version 20180514.0  
   Windows: for uptex use command_line_encoding=utf8, for all other turn
   it off (set to none)
-- version 20181212.0
+- version 20181212.0  
   support directories containing dots (thanks kn1cht)
+- version 20200119.0  
+  check invalid PATH string beforehand on windows
 ]]
 
 
@@ -338,7 +340,7 @@ repeat
     end
   end --if this_arg == ...
   narg = narg+1
-until narg > #arg 
+until narg > #arg
 
 whoami()
 
@@ -424,9 +426,17 @@ if (outputdir ~= ".") then
   dvipdfopts = "-o \"" .. bname .. ".pdf\""
 end
 print("Processing ".. filename)
-if (os.execute(tex .. " " .. texopts .. prefilename .. " \"" .. filename .. "\"") == 0) and
-   (dvipdf == "" or  (os.execute(dvipdf .. " " .. dvipdfopts .. " \"" .. bname .. ".dvi" .. "\"") == 0)) then 
-  if dvipdf ~= "" then 
+texcmd = tex .. " " .. texopts .. prefilename .. " \"" .. filename .. "\""
+tex_return = os.execute(texcmd)
+-- if os.execute(texcmd) returns -1 on Windows, then
+-- cmd.exe is not included in PATH, or some invalid string found before cmd.exe
+if os.type == 'windows' and tex_return == -1 then
+  print("Invalid PATH setting found. Please ensure that cmd.exe can be found.\n")
+end
+dvipdfcmd = dvipdf .. " " .. dvipdfopts .. " \"" .. bname .. ".dvi" .. "\""
+if tex_return == 0 and
+   (dvipdf == "" or (os.execute(dvipdfcmd) == 0)) then
+  if dvipdf ~= "" then
     print(bname .. ".pdf generated by " .. dvipdf .. ".")
   end
   if intermediate == 1 then -- clean-up:
@@ -436,8 +446,8 @@ if (os.execute(tex .. " " .. texopts .. prefilename .. " \"" .. filename .. "\""
   end
 else
   print("ptex2pdf processing of " .. filename .. " failed.\n")
-  print_ifdebug("tex = " .. tex)
-  print_ifdebug("dvipdf = " .. dvipdf)
+  print_ifdebug("tex = " .. texcmd)
+  print_ifdebug("dvipdf = " .. dvipdfcmd)
   os.exit(2)
 end