pmacs3/mode/replace.py

147 lines
3.9 KiB
Python

import re, sets, string
import color, method, minibuffer, mode, searchutil
from point import Point
subgroup_re = re.compile(r'((?:\\\\)*)\\(0|[1-9][0-9]*)')
class ReplaceOne(method.Method):
def execute(self, w, **vargs):
m = w.buffer.method
_replace(m)
_find_next(m, False)
_finish(m, w)
class ReplaceDone(method.Method):
def execute(self, w, **vargs):
m = w.buffer.method
_replace(m)
_end(w)
w.set_error("Replace done")
class SkipReplace(method.Method):
def execute(self, w, **vargs):
m = w.buffer.method
_find_next(m, True)
_finish(m, w)
class ReplaceAll(method.Method):
def execute(self, w, **vargs):
m = w.buffer.method
while m.p1 is not None:
_replace(m)
_find_next(m, False)
_end(w)
w.set_error("Replace ended")
class CancelReplace(method.Method):
def execute(self, w, **vargs):
_end(w)
w.set_error("Replace cancelled")
def _find_next(m, move=False):
s = m.before
w = m.old_window
c = w.logical_cursor()
try:
if m.is_literal:
r = re.compile(searchutil.escape_literal(s))
else:
r = re.compile(s)
except:
(m.p1, m.p2) = (None, None)
return False
newc = searchutil.find_next(r, w, move, start=c.add(0, 0))
if newc:
(m.p1, m.p2, m.match) = newc
return True
else:
(m.p1, m.p2, m.match) = (None, None, None)
return False
def _get_before(m):
if m.match is None:
return m.before
else:
return m.match.group(0)
def _get_after(m):
if m.after is None:
return None
elif m.match is None:
return m.after
def _repl(match):
(pre, num) = (match.group(1), int(match.group(2)))
if num == 0 or m.match.lastindex and num <= m.match.lastindex:
return pre + m.match.group(num)
else:
return match.group(0)
return subgroup_re.sub(_repl, m.after)
def _set_prompt(m):
w = m.old_window
if m.p1 is None:
w.application.mini_prompt = '%r was not found' % m.before
return
(x, y) = m.p1.xy()
count = 0
while y < len(w.buffer.lines):
count += w.buffer.lines[y][x:].count(m.before)
y += 1
x = 0
after = _get_after(m)
before = _get_before(m)
if count > 1:
p = 'Replace %r with %r [ynadq] (%d occurances)?' % (before, after, count)
else:
p = 'Replace %r with %r [ynadq] (1 occurance)?' % (before, after)
w.application.mini_prompt = p
def _replace(m):
m.old_window.buffer.delete(m.p1, m.p2)
if m.after:
after = _get_after(m)
m.old_window.buffer.insert_string(m.p1, after)
def _finish(m, w):
if m.p1 is None:
_end(w)
w.set_error("Replace ended")
else:
_set_prompt(m)
def _end(w):
w.application.close_mini_buffer()
w.application.clear_highlighted_ranges('search')
w.buffer.method.old_cursor = None
w.buffer.method.old_window = None
assert not w.application.mini_active
class Replace(mode.Fundamental):
modename = 'Replace'
actions = [ReplaceAll, ReplaceDone, ReplaceOne, SkipReplace, CancelReplace]
def __init__(self, w):
mode.Fundamental.__init__(self, w)
self.actions = {}
self.bindings = {}
self.add_bindings('replace-all', ('a', '!',))
self.add_bindings('replace-done', ('d',))
self.add_bindings('replace-one', ('y', 'SPACE',))
self.add_bindings('skip-replace', ('n', 'DELETE',))
self.add_bindings('cancel-replace', ('q', 'RETURN', 'C-]', 'C-n', 'C-p', 'C-a', 'C-e', 'C-f', 'C-b', 'C-g'))
m = w.buffer.method
found = _find_next(m, False)
if not found:
w.set_error('%r was not found' % m.before)
raise minibuffer.MiniBufferError
_set_prompt(m)
install = Replace.install