extension/lib/command.coffee

   1 ###
   2 # Copyright Anton Khodakivskiy 2013.
   3 # Copyright Simon Lydell 2013, 2014, 2015.
   4 #
   5 # This file is part of VimFx.
   6 #
   7 # VimFx is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # VimFx is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with VimFx.  If not, see <http://www.gnu.org/licenses/>.
  19 ###
  20
  21 notation    = require('vim-like-key-notation')
  22 utils       = require('./utils')
  23 _           = require('./l10n')
  24 { getPref
  25 , setPref } = require('./prefs')
  26
  27 class Command
  28   constructor: (@group, @name, @func) ->
  29     unless @name.startsWith('mode.')
  30       @name = "mode.normal.#{ @name }"
  31     keyString = getPref(@name).trim()
  32     @keyValues =
  33       if keyString == ''
  34         []
  35       else
  36         keyString.split(/\s+/).map(notation.parseSequence)
  37
  38   keys: (value) ->
  39     if value == undefined
  40       return @keyValues
  41     else
  42       @keyValues = value
  43       setPref(@name, value.map((key) -> key.join('')).join('  '))
  44
  45   help: -> _(@name)
  46
  47   match: (str, numbers = null) ->
  48     for key in @keys()
  49       key = utils.normalizedKey(key)
  50       if key.startsWith(str)
  51         # When letter 0 follows after a number, it is considered as number 0
  52         # instead of a valid command.
  53         continue if key == '0' and numbers
  54         count = if numbers then Number(numbers[numbers.length - 1]) else null
  55         return {match: true, exact: (key == str), command: this, count}
  56
  57   @searchForMatchingCommand: (commands, keys) ->
  58     for index in [0...keys.length] by 1
  59       str = keys[index..].join('')
  60       numbers = keys[0..index].join('').match(/[1-9]\d*/g)
  61       for command in commands
  62         return match if match = command.match(str, numbers)
  63     return {match: false}
  64
  65 module.exports = Command