ex-mode/lib/ex.coffee
2015-12-07 11:20:57 -08:00

297 lines
8.5 KiB
CoffeeScript

path = require 'path'
CommandError = require './command-error'
fs = require 'fs-plus'
VimOption = require './vim-option'
trySave = (func) ->
deferred = Promise.defer()
try
func()
deferred.resolve()
catch error
if error.message.endsWith('is a directory')
atom.notifications.addWarning("Unable to save file: #{error.message}")
else if error.path?
if error.code is 'EACCES'
atom.notifications
.addWarning("Unable to save file: Permission denied '#{error.path}'")
else if error.code in ['EPERM', 'EBUSY', 'UNKNOWN', 'EEXIST']
atom.notifications.addWarning("Unable to save file '#{error.path}'",
detail: error.message)
else if error.code is 'EROFS'
atom.notifications.addWarning(
"Unable to save file: Read-only file system '#{error.path}'")
else if (errorMatch =
/ENOTDIR, not a directory '([^']+)'/.exec(error.message))
fileName = errorMatch[1]
atom.notifications.addWarning("Unable to save file: A directory in the "+
"path '#{fileName}' could not be written to")
else
throw error
deferred.promise
saveAs = (filePath) ->
editor = atom.workspace.getActiveTextEditor()
fs.writeFileSync(filePath, editor.getText())
getFullPath = (filePath) ->
filePath = fs.normalize(filePath)
if path.isAbsolute(filePath)
filePath
else if atom.project.getPaths().length == 0
path.join(fs.normalize('~'), filePath)
else
path.join(atom.project.getPaths()[0], filePath)
replaceGroups = (groups, string) ->
replaced = ''
escaped = false
while (char = string[0])?
string = string[1..]
if char is '\\' and not escaped
escaped = true
else if /\d/.test(char) and escaped
escaped = false
group = groups[parseInt(char)]
group ?= ''
replaced += group
else
escaped = false
replaced += char
replaced
class Ex
@singleton: =>
@ex ||= new Ex
@registerCommand: (name, func) =>
@singleton()[name] = func
quit: ->
atom.workspace.getActivePane().destroyActiveItem()
q: => @quit()
tabedit: (range, args) =>
if args.trim() isnt ''
@edit(range, args)
else
@tabnew(range, args)
tabe: (args...) => @tabedit(args...)
tabnew: (range, args) =>
if args.trim() is ''
atom.workspace.open()
else
@tabedit(range, args)
tabclose: (args...) => @quit(args...)
tabc: => @tabclose()
tabnext: ->
pane = atom.workspace.getActivePane()
pane.activateNextItem()
tabn: => @tabnext()
tabprevious: ->
pane = atom.workspace.getActivePane()
pane.activatePreviousItem()
tabp: => @tabprevious()
edit: (range, filePath) ->
filePath = filePath.trim()
if filePath[0] is '!'
force = true
filePath = filePath[1..].trim()
else
force = false
editor = atom.workspace.getActiveTextEditor()
if editor.isModified() and not force
throw new CommandError('No write since last change (add ! to override)')
if filePath.indexOf(' ') isnt -1
throw new CommandError('Only one file name allowed')
if filePath.length isnt 0
fullPath = getFullPath(filePath)
if fullPath is editor.getPath()
editor.getBuffer().reload()
else
atom.workspace.open(fullPath)
else
if editor.getPath()?
editor.getBuffer().reload()
else
throw new CommandError('No file name')
e: (args...) => @edit(args...)
enew: ->
buffer = atom.workspace.getActiveTextEditor().buffer
buffer.setPath(undefined)
buffer.load()
write: (range, filePath, saveas = false) ->
if filePath[0] is '!'
force = true
filePath = filePath[1..]
else
force = false
filePath = filePath.trim()
if filePath.indexOf(' ') isnt -1
throw new CommandError('Only one file name allowed')
deferred = Promise.defer()
editor = atom.workspace.getActiveTextEditor()
saved = false
if filePath.length isnt 0
fullPath = getFullPath(filePath)
if editor.getPath()? and (not fullPath? or editor.getPath() == fullPath)
if saveas
throw new CommandError("Argument required")
else
# Use editor.save when no path is given or the path to the file is given
trySave(-> editor.save()).then(deferred.resolve)
saved = true
else if not fullPath?
fullPath = atom.showSaveDialogSync()
if not saved and fullPath?
if not force and fs.existsSync(fullPath)
throw new CommandError("File exists (add ! to override)")
if saveas
editor = atom.workspace.getActiveTextEditor()
trySave(-> editor.saveAs(fullPath)).then(deferred.resolve)
else
trySave(-> saveAs(fullPath)).then(deferred.resolve)
deferred.promise
w: (args...) =>
@write(args...)
wq: (args...) =>
@write(args...).then => @quit()
saveas: (range, filePath) =>
@write(range, filePath, true)
xit: (args...) => @wq(args...)
wa: ->
atom.workspace.saveAll()
split: (range, args) ->
args = args.trim()
filePaths = args.split(' ')
filePaths = undefined if filePaths.length is 1 and filePaths[0] is ''
pane = atom.workspace.getActivePane()
if filePaths? and filePaths.length > 0
newPane = pane.splitUp()
for file in filePaths
do ->
atom.workspace.openURIInPane file, newPane
else
pane.splitUp(copyActiveItem: true)
sp: (args...) => @split(args...)
substitute: (range, args) ->
args = args.trimLeft()
delim = args[0]
if /[a-z1-9\\"|]/i.test(delim)
throw new CommandError(
"Regular expressions can't be delimited by alphanumeric characters, '\\', '\"' or '|'")
delimRE = new RegExp("[^\\\\]#{delim}")
spl = []
args_ = args[1..]
while (i = args_.search(delimRE)) isnt -1
spl.push args_[..i]
args_ = args_[i + 2..]
if args_.length is 0 and spl.length is 3
throw new CommandError('Trailing characters')
else if args_.length isnt 0
spl.push args_
if spl.length > 3
throw new CommandError('Trailing characters')
spl[1] ?= ''
spl[2] ?= ''
notDelimRE = new RegExp("\\\\#{delim}", 'g')
spl[0] = spl[0].replace(notDelimRE, delim)
spl[1] = spl[1].replace(notDelimRE, delim)
try
pattern = new RegExp(spl[0], spl[2])
catch e
if e.message.indexOf('Invalid flags supplied to RegExp constructor') is 0
# vim only says 'Trailing characters', but let's be more descriptive
throw new CommandError("Invalid flags: #{e.message[45..]}")
else if e.message.indexOf('Invalid regular expression: ') is 0
throw new CommandError("Invalid RegEx: #{e.message[27..]}")
else
throw e
buffer = atom.workspace.getActiveTextEditor().buffer
atom.workspace.getActiveTextEditor().transact ->
for line in [range[0]..range[1]]
buffer.scanInRange(pattern,
[[line, 0], [line, buffer.lines[line].length]],
({match, matchText, range, stop, replace}) ->
replace(replaceGroups(match[..], spl[1]))
)
s: (args...) => @substitute(args...)
vsplit: (range, args) ->
args = args.trim()
filePaths = args.split(' ')
filePaths = undefined if filePaths.length is 1 and filePaths[0] is ''
pane = atom.workspace.getActivePane()
if filePaths? and filePaths.length > 0
newPane = pane.splitLeft()
for file in filePaths
do ->
atom.workspace.openURIInPane file, newPane
else
pane.splitLeft(copyActiveItem: true)
vsp: (args...) => @vsplit(args...)
delete: (range) ->
range = [[range[0], 0], [range[1] + 1, 0]]
atom.workspace.getActiveTextEditor().buffer.setTextInRange(range, '')
set: (range, args) ->
args = args.trim()
if args == ""
throw new CommandError("No option specified")
options = args.split(' ')
for option in options
do ->
if option.includes("=")
nameValPair = option.split("=")
if (nameValPair.length != 2)
throw new CommandError("Wrong option format. [name]=[value] format is expected")
optionName = nameValPair[0]
optionValue = nameValPair[1]
optionProcessor = VimOption.singleton()[optionName]
if not optionProcessor?
throw new CommandError("No such option: #{optionName}")
optionProcessor(optionValue)
else
optionProcessor = VimOption.singleton()[option]
if not optionProcessor?
throw new CommandError("No such option: #{option}")
optionProcessor()
module.exports = Ex