pmacs3/mode_diff.py

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2007-03-06 10:05:38 -05:00
import color, method, mode, lex, lex_diff, re
class Diff(mode.Fundamental):
def __init__(self, w):
mode.Fundamental.__init__(self, w)
self.grammar = lex_diff.DiffGrammar()
self.lexer = lex.Lexer(self.grammar)
self.add_action_and_bindings(DiffNextSection(), ('M-n', 'M-D_ARROW',))
self.add_action_and_bindings(DiffPreviousSection(), ('M-p', 'M-U_ARROW',))
self.colors = {
'left': color.build('red', 'default', 'bold'),
'right': color.build('blue', 'default', 'bold'),
'seperator': color.build('magenta', 'default', 'bold'),
'cvs metadata': color.build('magenta', 'default', 'bold'),
'svn metadata': color.build('magenta', 'default', 'bold'),
'location': color.build('magenta', 'default', 'bold'),
}
def name(self):
return "Diff"
class DiffNextSection(method.Method):
re = re.compile("(?:^|(?<=\n))@@ [-+0-9a-z, ]* @@(?:$|\n)")
def _execute(self, w, **vargs):
cursor = w.logical_cursor()
i = cursor.y + 1
while i < len(w.buffer.lines):
if self.re.match(w.buffer.lines[i]):
w.goto_line(i)
return
i += 1
class DiffPreviousSection(method.Method):
re = re.compile("(?:^|(?<=\n))@@ [-+0-9a-z, ]* @@(?:$|\n)")
def _execute(self, w, **vargs):
cursor = w.logical_cursor()
i = cursor.y - 1
while i >= 0:
if self.re.match(w.buffer.lines[i]):
w.goto_line(i)
return
i -= 1