I have a very basic .lua file saved in a folder, with just the code
print("Hello world")
I additionally have the standalone lua interpreter downloaded, but it is beyond me how to successfully run my code. I put all the files of the interpreter in the same folder but when I use F5 to run the program I see no text in the interpreter.
Run Notepad++.
On the menu select: Run -> Run.. (F5).
Insert: C:\path\to\lua.exe "$(FULL_CURRENT_PATH)"
Now you can run your scripts by pressing F5 on your keyboard.
Just do it with NppExec plugin:
SET interpreter = F:\lua\lua53.exe
SET exec = "$(interpreter)" "$(FULL_CURRENT_PATH)"
NPP_SAVE
$(exec)
if $(EXITCODE) != 0 goto exit
NPP_CONSOLE 0
NPP_RUN cmd /C "cmd /C $(exec) && pause"
:exit
KaMehHb's answer is correct, but one thing to add is either delete this line or change it to 1 if you want the console to stay up.
NPP_CONSOLE 0
to
NPP_CONSOLE 1
Related
I use windows 7 pro service pack 1.
I have the following code in the post build event :
SET VAR1=BLABLA
ECHO %VAR1% > Test.txt
It wont work. In the file, i get «command echo activated» (translated from french).
Embarcadero documentation says that i can use any valid dos command in those events.
If i just use :
ECHO BLABLA > Test.txt
It works, no problem. Is this a bug or there is a problem with % character ? % is an ascii char so i dont even know what could be the problem.
ty for your help.
% is used in cmd to delimit variablenames when the value of the variable is required, hence echo %var1% > test.txt will write the current value of the environment variable var1 to the file.
If var1 is not defined at the time, it will report the echo status (Echo is on/off`.
This can be circumvented by using echo(%var1% - the ( modifies echo's behaviour to not report the echo status if the arguments are resolved to nothing.
If you want to echo a literal % then you need to escape the % with another %. cmd normally uses ^ to escape symbols with a special meaning - % is the exception; %% to echo a literal %.
BTW - the space between the string to be echoed and the redirector will be output to the file. To prevent this, use > test.txt echo %var1% Note that > creates a file anew. >> will create or append if the file already exists. The space between the redirector and the filename is optional.
However, it's important when using batch to post exactly the code that's in use.
SET VAR1=BLABLA
ECHO %VAR1% > Test.txt
will work happily.
SET VAR1 = BLABLA
ECHO %VAR1% > Test.txt
will not because this latter code sets a variable named "var1Space"
On my 10.2.1 system, I've tried the code as published.
The actual code that's executed is
SET VAR1=BLABLA&ECHO %VAR1% > Test.txt
not
SET VAR1=BLABLA
ECHO %VAR1% > Test.txt
as shown in the "Build events commands" window.
This will not work because the entire line is executed as published on the "build events" page - SET VAR1=BLABLA&ECHO %VAR1% > Test.txt which will be interpreted by cmd after cmd performs its standard parsing routine.
cmd replaces any %var% with the actual value at parse time, not at run time hence as var1 has no value when the line SET VAR1=BLABLA&ECHO %VAR1% > Test.txt is parsed, the code is executed as SET VAR1=BLABLA&ECHO > Test.txt hence the problem encountered.
To cure this, you need to use
SET VAR1=BLABLA&call ECHO %%VAR1%% > Test.txt
where cmd will execute the parsed-ECHO command in a subshell. % is the escape character for % so the subshell executes ECHO %VAR1% > Test.txt after var1 has been set.
I'd suggest you raise this as a problem with EMBT. Batch commands cannot be strung together with & without side-effects. The code entered into the "Build events commands" window should be executed without reformatting - just written to a (temporary) batch file and the batch file then executed.
No doubt the eager downvoters will support the resolution of this problem.
I'm working with LaTeX files in Sublime 3 (3059). Given a main .tex file and a .bib file holding the citations, I'd like to be able to issue the standard:
pdflatex main.tex && bibtex main.aux && pdflatex main.tex && pdflatex main.tex
command after hitting a given shortcut in Sublime.
I know there are tools that can do this (LatexTools, LaTeXing) but since what I need is (I believe) so simple, I'd prefer not to depend on extra packages.
How can I store this command and have Sublime run it following a given key combination?
Edit: Based on the answer given, this is the full command I ended up using:
{
"cmd": ["pdflatex $file_name && bibtex $file_base_name.aux && pdflatex $file_name && pdflatex $file_name"],
"shell": true
}
If you want to execute a command you could use Tools > Build System > New Build System to create a file with a content similar to this one:
{
"cmd": ["command"]
}
And then, you should select that as your project Build System. Finally, use ctrl+b to invoke build (invoke your command or script).
I am using following code to append ";C:\Python27" to environment variable PATH..
#echo off
Setx Path "%PATH%;C:\Python27" -M
PAUSE
but if i run this batch file more than once, it is appending ";C:\Python27" many times that should not happen.
SO i have to check for ;C:\Python27 before appending it to PATH variable.
Is there any command for this purpose?
The following Powershell should do it:
$needPython = $env:path | select-string -NotMatch -SimpleMatch "c:\python27"
if ($needPython) {
[Environment]::SetEnvironmentVariable("tstpath", $env:path + ";c:\python27", "User")
}
You can change User to Machine or Process to set a machine or process level environment variable.
You can run this directly from a powershell prompt.
If you're running this from a dos command line use (you need the full path to your script or .\ if it's in the current directory):
powershell "& '.\myscript.ps1'"
I was following this simple tutorial to try out a simple lua script
http://www.redisgreen.net/blog/2013/03/18/intro-to-lua-for-redis-programmers/
I created a simple hello.lua file with these lines
local msg = "Hello, world!"
return msg
And i tried running simple command
EVAL "$(cat /Users/rsingh/Downloads/hello.lua)" 0
And i am getting this error
(error) ERR Error compiling script (new function): user_script:1: unexpected symbol near '$'
I can't find what is wrong here and i haven't been able to find someone who has come across this.
Any help would be deeply appreciated.
Your problem comes from the fact you are executing this command from an interactive Redis session:
$ redis-cli
127.0.0.1:6379> EVAL "$(cat /path/to/hello.lua)" 0
(error) ERR Error compiling script (new function): user_script:1: unexpected symbol near '$'
Within such a session you cannot use common command-line tools like cat et al. (here cat is used as a convenient way to get the content of your script in-place). In other words: you send "$(cat /path/to/hello.lua)" as a plain string to Redis, which is not Lua code (of course), and Redis complains.
To execute this sample you must stay in the shell:
$ redis-cli EVAL "$(cat /path/to/hello.lua)" 0
"Hello, world!"
If you are coming from windows and trying to run a lua script you should use this format:
redis-cli --eval script.lua
Run this from the folder where your script is located and it will load a multi line file and execute it.
On the off chance that anyone's come to this from Windows instead, I found I had to do a lot of juggling to achieve the same effect. I had to do this:
echo “local msg = 'Hello, world!'; return msg” > hello.lua
for /F "delims=" %i in ('type hello.lua') do #set cmd=%i
redis-cli eval "%cmd%" 0
.. if you want it saved as a file, although you'll have to have all the content on one line. If you don’t just roll the content into a set command
set cmd=“local msg = 'Hello, world!'; return msg”
redis-cli eval "%cmd%" 0
I write this code in my rails project.It's to execute a shell script ,But my shell script can catch #directdown only.
rails script
#cmd = "/downafile.sh #{#directdown} #{#file.id} #{#filename}"
`#{#cmd}`
shell script
echo $1 >> /tmp/ceshi.tmp
echo $2 >> /tmp/ceshi.tmp
echo $3 >> /tmp/ceshi.tmp
Thanks.
`` and system command works in similar manner.
But system method will return true on success.
Try with this:
#cmd = "/downafile.sh '#{#directdown}' '#{#file.id}' '#{#filename}'"
`#{#cmd}`
Try using puts #cmd to see the command generated and see whether the command is what you intended. If it is try executing it from the terminal to test whether your shell script works. I think the parameters #file.id and #filename value may be nil so on interpolation it will be replaced by "". puts their values also to check.
I don't know what is the meaning of `` in Ruby, but I think you can use the system function to invoke an external program. Something like,
#cmd = "/downafile.sh #{#directdown} #{#file.id} #{#filename}"
system(#cmd)
Hope it helps.