I'm using perlbrew to switch between perl versions. I also use Eclipse to write perl scripts.
It seems that Eclipse does not recognize the switches between perl versions, and keeps working with the base version installed out of perlbrew. I tried restarting Eclipse but this doen't help.
So, How can I make Eclipse work with perlbrew?
If you are using EPIC, this will work: Click through to Window->Preferences->Perl EPIC and set the Perl executable to perl5/perlbrew/bin/perl. This always points to the current set version of perl. The path is relative to your $HOME on Linux.
I haven't tried this as I usually just use a text editor for Perl, but I have taken to using the shebang line #!/usr/bin/env perl so that I get the perl for the user that runs the script (ie. perlbrew if me, system perl if root). If Eclipse executes the script (./myscript.pl) this should work, if instead it callsperl myscript.pl` then this will not help you.
Related
I installed Active Perl 5.20
and also Strawberry Perl 5.20 after uninstalling Active Perl.
In both cases, when I open cmd and type 'perl' I get:
Unknown Unicode option letter ':'.
This error also prevents all scripts from running on my Windows 8.1 installation.
I uninstalled Perl and did a fresh install and it still doesn't work.
Are there dependencies that I need to install?
I googled the error but the results pertain to Linux installations where the script specified something wrong. But I get this error when I even try to use any perl command line or script. So my problem is not a faulty script.
That is the error message you get from using an invalid value for the -C command-line option. At a guess I'd say you have the PERL_UNICODE environment variable set to a string that contains a colon :.
Take a look at Command Switches in perldoc perlrun for more detail on this.
I too had this problem on windows 8.1 . The problem is that, once on installation, .pl files are not automatically recognized by Perl engine. So please select a .pl file and right click and say open with and set the default program to C\perl\bin\ inside it click perl.exe and recognize it. Once this is done your perl works flawlessly.
I've been using the CoqIDE plugin for Vim on Linux machines for editing Coq files. Now I'm trying to install it on Windows 8. But when I try to source the plugin, I get
Your vim doesn't support Perl. Install it before using CoqIDE mode.
which is strange, because with :version I clearly see +perl/dyn included. Is this different from the +perl that I need?
I heard somewhere that you need to have Perl installed before Vim to get a Perl-enabled Vim, so I tried that as well. I uninstalled Vim, installed Strawberry Perl 5.18.2.2 (64bit), and reinstalled Vim. Still the same problem.
If the solution involves manually compiling binaries, I would really appreciate detailed instructions as I don't have any experience with it.
+perl/dyn just specifies that Vim has been compiled with dynamic Perl support; it doesn't yet check that the Perl library can be loaded successfully. To do that, try executing a Perl command, e.g.:
:perl VIM::Msg("Hello")
This probably yields on your system:
E370: Could not load library perl510.dll
Sorry, this command is disabled: the Perl library could not be loaded.
Next, you'd then have to investigate whether a proper Perl version has been installed and the DLL is accessible (though the PATH).
Download DWIMPerl for windows. I'm running win7 64 and gvim 7.4.2. Using strawberryperl and activeperl resulted in :echo has('perl') to yield 0. By switching to DWIMPerl (and ensuring my PATH env variables are proper) :echo has('perl') now yields 1 using the standard gvim distribution. This is important for vim extensions like dbext which require proper support for perl interfaces.
I installed perl5.14 via macports.
By typing
which perl
I get
/usr/bin/perl
How do I change the perl to point the macports one.
My .profile is:
# MacPorts Installer addition on 2012-02-02_at_14:42:32: adding an appropriate PATH variable for use with MacPorts.
export PATH=/opt/local/bin:/opt/local/sbin:$PATH
# Finished adapting your PATH environment variable for use with MacPorts.
Maybe the perl port isn't active? try:
$ sudo port activate perl5
sudo port install perl5 +perl5_14
You need to re-launch terminal for the export to take effect. As a quick but messy workaround you can always invoke perl like this:
/opt/local/bin/perl Remember to put that in your Perl scripts as well. Also, unlike unix I find I always have to use sudo when installing to a local directory.
Macports is great for installing all those non-Perl libraries that aren't installed on the Mac, however it is not so great for installing Perl modules as it is dependant on there being a port of it, you can't really use CPAN to install. perlbrew does work on the Mac and is a much better solution. But if you still want to use Macports to install non-Perl libraries you hit a problem. I solved it with a .profile like this:
source ~/perl5/perlbrew/etc/bashrc
# export PATH=/opt/local/bin:/opt/local/sbin:$PATH
Note the comment. The first line gives me my perlbrew Perl when I open terminal. When I want to use Macports to install libraries I swap the comment around and re-launch terminal and I then have Macports Perl. Of course this means I need two Perls on my machine, and they both need to be the same version but I don't have any problems with this.
Not being on a Mac, I cannot answer your exact question. However, many Perl users/developers now use perlbrew to install newer versions of Perl and manage choosing between them. I am fairly confident that it works on Mac. Read more at the website or CPAN.
Padre is a (open) IDE for Perl that does look promising.
Since Padre is written in Perl itself, it is not apparent whether it's easily possible and practicable to run and debug Perl scripts in this IDE that are running on a different Perl version than the IDE itself.
As an example, say I download the current installer (for Windows) which will install and run Padre on Strawberry Perl 5.12 -- can I then use this IDE to run+debug my scripts that are running on ActiveState Perl 5.8.9? (Yes, and I want them to run exactly on AS+5.8.9 because this is where they'll run in production.)
I am aware that there is a Padre package for AS+5.8.9 but I would much rather install the default IDE package and have the IDE run on the Perl it normally runs on and have my scripts run on the Perl they normally run on.
Insights?
Under Tools->Preferences->Language - Perl 5 you can specify the perl binary as well as its parameters to run your projects.
I just recently installed ActivePerl 5.12.2.1202 on my Windows XP in C:/Perl. I am new to Perl scripting.
I just want to run a Perl program which contains one print statement, which I saved in Notepad with the name ex.pl.
How can I run this Perl program?
Can I use an editor for typing a Perl script other than Notepad?
How do I use ActivePerl?
Run Perl program from command prompt
start->run>cmd (command prompt will appear), write perl full_path_of_your_script,
like
C:\> perl hello.pl #This assumes that perl is in your PATH environment variable.
There are many Perl Editors, you can
used for Perl scripts like DzSoft,
Perl Expess, Komodo Edit etc and also see http://www.perlmonks.org/?node_id=169668 and Perlfaq3- Windows Perl Editors for more detail.
Have a look at http://docs.activestate.com/activeperl/5.12/, for ActivePerl 5.12 documentation.
Perl programs (or any other program run by an interpreter) is run by passing the script as a command-line argument to the interpreter. For example, in this case:
perl.exe ex.pl
Padre the Perl IDE and Kephra are good editors for Perl.
As an alternative to ActivePerl, there is Strawberry Perl.
Perl programs are run using the Perl interpreter, perl.exe.
This is normally done from the command line:
C:\>C:\Perl\bin\perl ex.pl
If perl.exe is in your PATH environment variable that can be shortened to:
C:\>perl ex.pl
If you opted to have *.pl files associated with Perl during installation, you can also double-click on them from Windows Explorer.
If you have *.pl files associated with Perl and add .PL to your PATHEXT environment variable you can run them like any other executable:
C:\>ex
Perl programs are just text files. They can be edited with any text editor (Padre, Kokomo, vim, emacs, Notepad++, etc.). Use whichever one you like best.
ActivePerl is just a distribution of Perl. "Using" it usually means running perl.exe to execute your program. ActivePerl also includes the PPM (Perl Package Manager) utility to make it easier to install modules from CPAN, particularly if you don't have a C compiler available. Most experienced Perl developers prefer to use the cpan shell.
Just to add to the other answers, I use EPIC, the Perl eclipse plugin. I'm using Perl on a Windows 7 64 bit machine.
I still run scripts off the command line in windows using ActivePerl, but for development I like being able to dynamically step through the script line by line.
just to not paraphrase other answers and to be more helpful (even if the post is somehow old ) i recommend using the switch "-e" to run Perl scripts if they are composed of few statements e.g
Perl -e "print('hello')"
and of course this requires that the Perl executable is in the Path variable,if not and assuming Perl is under the folder c:\Perl , you can add it by taping :
set %PATH%=%PATH%;c:\Perl\bin
when it comes to the choice of text editor ,I'm still using Notepad++ for almost everything ,it come with some useful features like keywords highlighting and some auto-completion capabilities.