Philipp Metzner pylipp

Vim Script for Python Developers

This is a guide to Vim Script development for Python developers. Sample code for the various expressions, statements, functions and programming constructs is shown in both Python and Vim Script. This is not intended to be a tutorial for developing Vim scripts. It is assumed that the reader is familiar with Python programming.

For an introduction to Vim Script development, refer to usr_41.txt, eval.txt and Learn Vimscript the Hard Way

For a guide similar to this one for JavaScript developers, refer to Vim Script for the JavaScripter

This guide only describes the programming constructs that are present in both Python and Vim. The constructs that are unique to Vim (e.g. autocommands, [key-mapping](https://vimhelp.org/map.txt.html#key-m

My Vim-related gists

Long-form

Redirect the output of a Vim or external command into a scratch buffer

Usage (any shell)

Show full output of command :hi in scratch window:

:Redir hi

Show full output of command :!ls -al in scratch window:

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

QObject list-model with factory function

Same as QObject List Model but with a factory function and arbitrary keys.

See also

	#!/bin/sh

	prog_name=${0##*/}
	version=1.0
	version_text="Boilerplate for new scripts v$version"
	options="h o: q v V"
	help_text="Usage: $prog_name [-o <text>] [-hqvV] [<file>]...

	Boilerplate for new scripts

	"ftplugins/php.vim

	function! s:createSnippet(line)
	let l:signature = matchstr(a:line, '\v\s+[a-z0-9A-Z_]+\s\(.\)')
	let l:methodName = substitute(substitute(l:signature, '(.*$', '', 'g'), '\s', '', 'g')
	let l:paramList = []
	let l:params = substitute(l:signature, '\$[a-zA-Z0-9_]\+', '\=add(l:paramList, submatch(0))', 'g')

	let l:templateParams = []
	for p in l:paramList

	import six
	from peewee import Model, FieldAccessor
	from playhouse.postgres_ext import BinaryJSONField


	class GForeignKeyAccessor(FieldAccessor):
	def get_rel_instance(self, instance):
	value = instance.__data__.get(self.name)
	model_name = value['model']
	rel_model = self.field.allowed_types[model_name]

	--langdef=graphql
	--langmap=graphql:.graphql
	--regex-graphql=/^type[ \t]+([^{]+){/\1/t,type/
	--regex-graphql=/^input[ \t]+([^{]+){/\1/i,input/
	--regex-graphql=/^[ \t]*([a-zA-Z]+)\(/\1/f,func/

	# GIT heart FZF
	# -------------

	is_in_git_repo() {
	git rev-parse HEAD > /dev/null 2>&1
	}

	fzf-down() {
	fzf --height 50% --min-height 20 --border --bind ctrl-/:toggle-preview "$@"
	}