46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
import string
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import color, mode2
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from lex3 import Grammar, PatternRule, RegionRule
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from method import Method, Argument
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from point2 import Point
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class HexGrammar(Grammar):
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rules = [
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PatternRule(r'zero', r"00"),
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PatternRule(r'byte', r'[0-f][0-f]'),
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]
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class Hex(mode2.Fundamental):
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grammar = HexGrammar
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colors = {
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'zero': ('magenta', 'default'),
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'byte': ('white', 'default'),
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}
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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(GotoWord(), ('M-g',))
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# create all the insert actions for the basic text input
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for c in string.letters + string.digits + string.punctuation:
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if c in string.hexdigits:
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self.add_binding('overwrite-char-%s' % c.lower(), c)
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else:
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self.del_binding(c)
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def name(self):
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return "Hex"
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class GotoWord(Method):
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'''Jump to the specified line number'''
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args = [Argument("wordno", type=type(0), prompt="Goto word: ")]
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def _execute(self, w, **vargs):
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n = vargs["wordno"]
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if n < 0:
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w.set_error("Negative word counts not supported.")
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try:
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p = Point((n % 4) * 9, n / 4)
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w.goto(p)
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except:
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w.goto_end()
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