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branch: st3
112 lines (85 sloc) 2.653 kb
# edit.py
# buffer editing for both ST2 and ST3 that "just works"
import inspect
import sublime
import sublime_plugin
try:
sublime.edit_storage
except AttributeError:
sublime.edit_storage = {}
def run_callback(func, *args, **kwargs):
spec = inspect.getfullargspec(func)
if spec.args or spec.varargs:
func(*args, **kwargs)
else:
func()
class EditFuture:
def __init__(self, func):
self.func = func
def resolve(self, view, edit):
return self.func(view, edit)
class EditStep:
def __init__(self, cmd, *args):
self.cmd = cmd
self.args = args
def run(self, view, edit):
if self.cmd == 'callback':
return run_callback(self.args[0], view, edit)
funcs = {
'insert': view.insert,
'erase': view.erase,
'replace': view.replace,
}
func = funcs.get(self.cmd)
if func:
args = self.resolve_args(view, edit)
func(edit, *args)
def resolve_args(self, view, edit):
args = []
for arg in self.args:
if isinstance(arg, EditFuture):
arg = arg.resolve(view, edit)
args.append(arg)
return args
class Edit:
def __init__(self, view):
self.view = view
self.steps = []
def __nonzero__(self):
return bool(self.steps)
@classmethod
def future(self, func):
return EditFuture(func)
def step(self, cmd, *args):
step = EditStep(cmd, *args)
self.steps.append(step)
def insert(self, point, string):
self.step('insert', point, string)
def erase(self, region):
self.step('erase', region)
def replace(self, region, string):
self.step('replace', region, string)
def sel(self, start, end=None):
if end is None:
end = start
self.step('sel', start, end)
def callback(self, func):
self.step('callback', func)
def run(self, view, edit):
for step in self.steps:
step.run(view, edit)
def __enter__(self):
return self
def __exit__(self, type, value, traceback):
view = self.view
if sublime.version().startswith('2'):
edit = view.begin_edit()
self.run(edit)
view.end_edit(edit)
else:
key = str(hash(tuple(self.steps)))
sublime.edit_storage[key] = self.run
view.run_command('apply_edit', {'key': key})
class apply_edit(sublime_plugin.TextCommand):
def run(self, edit, key):
sublime.edit_storage.pop(key)(self.view, edit)
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