Re: Lua scripts made into executable on win32 (small addition request)

["Jim Whitehead II" <jnwhiteh@...>]

If you actually want to look at executables, I'd look into srlua.  Its
a very simple way to distribute actual .exe files, where the source is
fully available and recoverable.  In addition you could easily encrypt
or obfuscate the source.  Its actually a quite neat trick, and while
its not entirely related to what you're looking to do, its an
interesting project to look into =)

http://www.tecgraf.puc-rio.br/~lhf/ftp/lua/

On 9/16/06, JAST <jastejada@yahoo.com> 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 ---------
>
>
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