51 lines
1.9 KiB
Python
51 lines
1.9 KiB
Python
import color, method, mode2, re
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from lex2 import Grammar, PatternRule, RegionRule
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class DiffGrammar(Grammar):
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rules = [
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PatternRule(name=r'left', pattern=r"^\-.*$"),
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PatternRule(name=r'right', pattern=r"^\+.*$"),
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PatternRule(name=r'metadata', pattern=r'^[A-Za-z].*$'),
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PatternRule(name=r'seperator', pattern=r'^={67}$'),
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PatternRule(name=r'location', pattern=r"(?:^|(?<=\n))@@ [-+0-9a-z, ]* @@(?:$|\n)"),
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PatternRule(name=r'common', pattern=r"(?:^|(?<=\n)).*(?:$|\n)"),
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]
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class Diff(mode2.Fundamental):
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grammar = DiffGrammar()
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def __init__(self, w):
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mode2.Fundamental.__init__(self, w)
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#self.add_action_and_bindings(DiffNextSection(), ('M-n', 'M-D_ARROW',))
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#self.add_action_and_bindings(DiffPreviousSection(), ('M-p', 'M-U_ARROW',))
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self.colors = {
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'left': color.build('red', 'default', 'bold'),
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'right': color.build('blue', 'default', 'bold'),
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'seperator': color.build('magenta', 'default', 'bold'),
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'metadata': color.build('magenta', 'default', 'bold'),
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'location': color.build('magenta', 'default', 'bold'),
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}
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def name(self):
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return "Diff"
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class DiffNextSection(method.Method):
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re = re.compile("(?:^|(?<=\n))@@ [-+0-9a-z, ]* @@(?:$|\n)")
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def _execute(self, w, **vargs):
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cursor = w.logical_cursor()
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i = cursor.y + 1
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while i < len(w.buffer.lines):
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if self.re.match(w.buffer.lines[i]):
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w.goto_line(i)
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return
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i += 1
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class DiffPreviousSection(method.Method):
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re = re.compile("(?:^|(?<=\n))@@ [-+0-9a-z, ]* @@(?:$|\n)")
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def _execute(self, w, **vargs):
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cursor = w.logical_cursor()
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i = cursor.y - 1
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while i >= 0:
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if self.re.match(w.buffer.lines[i]):
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w.goto_line(i)
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return
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i -= 1
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