Re: {Spam?} Re: Lua scripts made into executable on win32 (smalladdition request)

[JAST <jastejada@...>]

--- Philippe Lhoste <PhiLho@GMX.net> wrote:

> Dave Nichols a écrit :
> > I think its a brilliant trick too and should
> be supported.
> > AFAICT its a one line change to luaL_loadfile
> in lauxlib.c, from this:
> > 
> >   if (c == '#') {  /* Unix exec. file? */
> >     lf.extraline = 1;
> >     while ((c = getc(lf.f)) != EOF && c !=
> '\n') ;  /* skip first line */
> >     if (c == '\n') c = getc(lf.f);
> >   }
> > 
> > to this:
> > 
> >   if (c == '#' || c == '@') {  /* Unix exec.
> file or windows batch file? */
> >     lf.extraline = 1;
> >     while ((c = getc(lf.f)) != EOF && c !=
> '\n') ;  /* skip first line */
> >     if (c == '\n') c = getc(lf.f);
> >   }
> > 
> > 
> > -----Original Message-----
> > From: lua-bounces@bazar2.conectiva.com.br
> >
> [mailto:lua-bounces@bazar2.conectiva.com.br]On
> Behalf Of Asko Kauppi
> > Sent: 17 September 2006 07:27
> > To: Lua list
> > Subject: Re: {Spam?} Re: Lua scripts made
> into executable on win32
> > (smalladdition request)
> > 
> > He might not want to have the files as .lua,
> but to comeurflauge
> > (what's the right spelling?? :( ) them as
> .bat or .cmd.
> > 
> > I have to say, that TRICK is soooo brilliant
> (didn't know it can be
> > done!) that it should be supported.  Just as
> a tribute to the
> > brilliant ways people deal with Windows being
> what it is. :)
> > 
> > -asko
> > 
> > Rici Lake kirjoitti 17.9.2006 kello 6.11:
> > 
> >> Wouldn't it be simpler to use something
> similar to the instructions
> >> for associating the perl interpreter with
> perl scripts, found
> >> in this irritatingly long URL:
> >>
>
http://aspn.activestate.com/ASPN/docs/ActivePerl/5.8/faq/Windows/
> >>
>
ActivePerl-Winfaq4.html#How_do_I_associate_Perl_scripts_
> >>
> >> On 16-Sep-06, at 8:12 PM, JAST wrote:
> >>
> >>> Lua scripts made into executable on win32
> (small
> >>> addition request)
> >>>
> >>> any lua script, can be made in to batch
> file,
> >>> example, a script:
> >>>
> >>> ---------- LUASCRIPT.LUA ---------
> >>>
> >>> print("hello universe!")
> >>> for k,v in ipairs(arg) print(k,v) end
> >>>
> >>> ---------- LUASCRIPT.LUA ---------
> >>>
> >>> the script above can be made into batchfile
> by
> >>> adding shell commands (see below)
> >>> lua will ignore those command because they
> are
> >>> commented.
> >>> the command "goto =goto" will just do
> nothing
> >>>
> >>> ---------- LUASCRIPT.BAT ---------
> >>>
> >>> goto =goto
> >>>
> >>> print("hello universe!")
> >>> for k,v in ipairs(arg) print(k,v) end
> >>>
> >>> --[[
> >>> :=goto
> >>> @echo off
> >>> set f=%0
> >>> 	if exist "%f%" goto run
> >>> set f=%0.bat
> >>> 	if exist "%f%" goto run
> >>> set f=%~f0
> >>> 	if exist "%f%" goto run
> >>> set f=%~$PATH:0
> >>> 	if exist "%f%" goto run
> >>> for %%d in (%path%) do if exist "%%d\%0"   
>  set
> >>> f=%%d\%0
> >>> 	if exist "%f%" goto run
> >>> for %%d in (%path%) do if exist
> "%%d\%0.bat" set
> >>> f=%%d\%0.bat
> >>> 	if exist "%f%" goto run
> >>>
> >>> :run
> >>> 	lua.exe "%f%" %1 %2 %3 %4 %5 %6 %7 %8 %9
> >>> ::]]
> >>>
> >>> ---------- LUASCRIPT.BAT ---------
> >>>
> >>>
> >>> after adding this shell commands:
> >>> you can just type:
> >>>
> >>> C:\> luascript.bat arg1 arg2 arg3
> >>>
> >>> or
> >>>
> >>> C:\> luascript arg1 arg2 arg3
> >>>
> >>>
> >>> BUT there is a small tiny little
> microscopic
> >>> problem.
> >>> it outputs the shell command "goto =goto"
> too!
> >>>
> >>> C:\>luascript arg1 arg2 arg3
> >>> C:\>goto =goto
> >>> hello universe!
> >>> 1       arg1
> >>> 2       arg2
> >>> 3       arg3
> >>> C:\>_
> >>>
> >>> this is a large giagantic huge  problem if
> your
> >>> script is
> >>> putting information to stdout!
> >>>
> >>> my addition request for lua interpreter is,
> >>> since,
> >>> Lua, to allow the use of Lua as a script
> >>> interpreter in Unix systems,
> >>> the stand-alone interpreter skips the first
> line
> >>> of a chunk if it starts with #.
> >>> why not the stand-alone interpreter skips
> the
> >>> first
> >>>  line of a chunk if it starts with '#' or
> '@'.
> >>>
> >>> '@' becuase a shell command in Windows
> prefix
> >>> with '@'
> >>> prevents the interpreter from displaying
> the
> >>> command onscreen.
> >>> so the first line of the script will be:
> >>>
> >>> @goto =goto
> >>>
> >>> '=goto' is an ugly label maybe this is more
> ok:
> >>>
> >>> @goto batchcmd
> >>>
> >>> the file will now look like this
> >>>
> >>> ---------- LUASCRIPT.BAT ---------
> >>>
> >>> @goto batchcmd
> >>>
> >>> print("hello universe!")
> >>> for k,v in ipairs(arg) print(k,v) end
> >>>
> >>> --[[
> >>> :batchcmd
> >>> @echo off
> >>> set f=%0
> >>> 	if exist "%f%" goto run
> >>> set f=%0.bat
> >>> 	if exist "%f%" goto run
> >>> set f=%~f0
> >>> 	if exist "%f%" goto run
> >>> set f=%~$PATH:0
> >>> 	if exist "%f%" goto run
> >>> for %%d in (%path%) do if exist "%%d\%0"   
>  set
> >>> f=%%d\%0
> >>> 	if exist "%f%" goto run
> >>> for %%d in (%path%) do if exist
> "%%d\%0.bat" set
> >>> f=%%d\%0.bat
> >>> 	if exist "%f%" goto run
> >>>
> >>> :run
> >>> 	lua.exe "%f%" %1 %2 %3 %4 %5 %6 %7 %8 %9
> >>> ::]]
> >>>
> >>> ---------- LUASCRIPT.BAT ---------
> >>>
> >>> please!
> >>>
> >>>
> >>>
> >>> if lua has an option like the '-S' in perl
> (look
> >>> for programfile using PATH environment
> variable)
> >>> i think its possible to trim the script to
> this
> >>>
> >>> ---------- LUASCRIPT.BAT ---------
> >>>
> >>> @goto batchcmd
> >>>
> >>> print("hello universe!")
> >>> for k,v in ipairs(arg) print(k,v) end
> >>>
> >>> --[[
> >>> :batchcmd
> >>> @lua.exe -S "%0" %1 %2 %3 %4 %5 %6 %7 %8 %9
> >>> ]]
> >>>
> >>> ---------- LUASCRIPT.BAT ---------
> 
> A: Because it is hard to read!
> 
> Q: Why top-posting is bad?
> 
> ...
> 
> As Rici pointed out, it is so easy to associate
> .lua extension in 
> Windows, I don't see the point. In old Win9x,
> you still have to call 
> Lua.exe on the command line, because it is Dos
> that only accepts some 
> extensions as exe. But in NT/2k/XP, no problem.
> I even wrote a small program that parses the
> shbang line to find which 
> version of Lua to run. I don't use it much...
> :-)
> 
> If that is for camouflaging .lua as .bat or
> .cmd, well it is a bit 
> peculiar, not worth of changing the official
> Lua for that.
> 
> 
> Bonus:
> 
> REGEDIT4
> 
> [HKEY_CLASSES_ROOT\.lua]
> @="luafile"
> 
> [HKEY_CLASSES_ROOT\luafile]
> @="Lua Script"
> "AlwaysShowExt"=""
> 
> [HKEY_CLASSES_ROOT\luafile\DefaultIcon]
> @="C:\\PrgCmdLine\\Lua.exe,-1"
> 
> [HKEY_CLASSES_ROOT\luafile\shell\open\command]
> @="\"C:\\PrgCmdLine\\Lua.exe\" \"%1\" %*"
> 
> 
> -- 
> Philippe Lhoste
> --  (near) Paris -- France
> --  http://Phi.Lho.free.fr
> --  --  --  --  --  --  --  --  --  --  --  -- 
> --  --
> 
> 

In File associations, I/O redirection will may or
may not work correctly!



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