78 lines
1.9 KiB
Python
78 lines
1.9 KiB
Python
#!/usr/bin/env python
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# encoding: utf-8
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__all__ = [ "Position", "Span" ]
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class Position(object):
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def __init__(self, line, col):
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self.line = line
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self.col = col
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def col():
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def fget(self):
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return self._col
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def fset(self, value):
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self._col = value
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return locals()
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col = property(**col())
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def line():
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doc = "Zero base line numbers"
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def fget(self):
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return self._line
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def fset(self, value):
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self._line = value
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return locals()
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line = property(**line())
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def __add__(self,pos):
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if not isinstance(pos,Position):
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raise TypeError("unsupported operand type(s) for +: " \
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"'Position' and %s" % type(pos))
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return Position(self.line + pos.line, self.col + pos.col)
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def __sub__(self,pos):
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if not isinstance(pos,Position):
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raise TypeError("unsupported operand type(s) for +: " \
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"'Position' and %s" % type(pos))
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return Position(self.line - pos.line, self.col - pos.col)
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def __cmp__(self, other):
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s = self._line, self._col
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o = other._line, other._col
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return cmp(s,o)
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def __repr__(self):
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return "(%i,%i)" % (self._line, self._col)
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class Span(object):
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def __init__(self, start, end):
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self._s = start
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self._e = end
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def __contains__(self, pos):
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return self._s <= pos < self._e
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def start():
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def fget(self):
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return self._s
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def fset(self, value):
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self._s = value
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return locals()
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start = property(**start())
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def end():
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def fget(self):
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return self._e
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def fset(self, value):
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self._e = value
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return locals()
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end = property(**end())
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def __repr__(self):
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return "(%s -> %s)" % (self._s, self._e)
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