Killring Plugin for Sublime Text

killring.py

import sublime
import sublime_plugin


# Implements an Emacs-style kill ring feature

# Example bindings (.sublime-keymap)
#
#{ "keys": ["ctrl+k"], "command": "kill_area"},
#{ "keys": ["alt+y"], "command": "yank_list"},
#{ "keys": ["ctrl+y"], "command": "yank_last"},
#{ "keys": ["ctrl+shift+k"], "command": "copy_area_ring"}

killring = []


class KillAreaCommand(sublime_plugin.TextCommand):
    def run(self, edit):
        global killring
        killring.append(self.view.substr(self.view.sel()[0]))

        edit = self.view.begin_edit()
        for s in self.view.sel():
            self.view.erase(edit, s)
        self.view.end_edit(edit)


class CopyAreaRingCommand(sublime_plugin.TextCommand):
    def run(self, edit):
        global killring
        killring.append(self.view.substr(self.view.sel()[0]))


class YankListCommand(sublime_plugin.TextCommand):

    def _yank(self, result):
        if result != -1:
            edit = self.view.begin_edit()
            for s in self.view.sel():
                self.view.erase(edit, s)
            self.view.insert(edit, s.begin(),
                             killring[len(killring) - 1 - result])
            self.view.end_edit(edit)

    def format_killring(self, kr):
        return list(l.split('\n')[:5] for l in kr[::-1])

    def run(self, edit):
        global killring
        kr = self.format_killring(killring)
        self.view.window().show_quick_panel(kr, self._yank)


class YankLastCommand(YankListCommand):
    def run(self, edit):
        global killring
        self._yank(len(killring) - 1)