The execute command is used to evaluate a string as if it were a Vimscript . Responsible Coding. So far we’ve covered a bunch of Vim commands that let. Functional Programming. We’re going to take a short break now to talk about a.

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Execute The execute command is used to evaluate a string as if it were a Vimscript command. So far we’ve covered a bunch of Vim commands that let you customize Vim quickly.

Be the first to ask a question about Learn Vimscript the Hard Way.

Learn Vimscript the Hard Way by Steve Losh

You might think this would start defining a function named meow. Aleksandr Danshyn rated it it was amazing Jan 01, Once bufname is evaluated Vim builds the string “rightbelow vsplit bar. What other items do customers buy thee viewing this item? This time the if statement in the function executes its body, returns 1and so the if we manually typed in executes its body.

Open Preview See a Problem? Contrast this with other languages, where programs constantly take input from untrusted users. Dec 28, David rated it really liked it. Get to Know Us. Trivia About Learn Vimscript t Pop returns a new list with the element at the given index removed. Source and write the file and try them out on a few lists.


Execute / Learn Vimscript the Hard Way

Removed is like Filtered except it only keeps elements where the predicate function does not return something truthy. Create lezrn file if it doesn’t already exist.

So, I didn’t read any of that crap, and by the end, I wasn’t really typing in the code and playing with it anymore. Ethan rated it it was amazing May 30, Let’s try a more useful example. You don’t need to use call in this case, you vimsrcipt just name the function.

Options and commands are often terse and hard to read, and working around compatibility issues can increase the complexity of your code. Vitaly rated it really liked it Nov 11, I’ve been using Vim for around a decade now, accumulating stolen snippets and tentatively writing some little functions to help me work better sometimes, but vimscrippt reading this book I feel empowered to do more than that.

We can create a few helpers that will make it less painful though. Read more Read less.


Learn Vimscript the Hard Way

In this part of the book, if you follow along coding, you end up with a complete plugin. Vim’s sort sorts the list in placeso we first create a full copy of the list and sort that so the original list won’t be changed.

Finally we’ll create the counterpart to Filtered: You might be thinking that copying lists all over the place is wasteful, since Vim has to constantly create new copies and garbage collect old ones.

Even if you do add a scope to a function we’ll talk about that later you may as well capitalize the first letter of thd names anyway. What happens when you set it to a different number? The tricky part is the middle.

If you’re working with enormous lists, things can slow down. Reversed takes a list and returns a new list with the elements reversed. Being a programmer I know the basic building blocks of a programming language.