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# $Id$
#
# Copyright (C) 1997 Klee Dienes <klee@mit.edu>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
import string
class strfile:
def __init__ (self, s):
self.s = s
self.pos = 0
def isatty (self):
return 0
def tell (self):
return self.pos
def seek (self, offset, mode = 0):
if (mode == 0):
npos = offset
elif (mode == 1):
npos = self.pos + offset
elif (mode == 2):
npos = len (s) - offset
else:
raise ValueError, 'invalid seek mode %d' % mode
if (npos < 0):
raise IOError, 'seek before beginning of string'
if (npos > len (s)):
raise IOError, 'seek past end of string'
self.pos = npos
def read (self, n = -1):
if (n < 0):
return self.s[self.pos:]
else:
self.pos = self.pos + n
return self.s[self.pos - n:self.pos]
def readline (self):
i = string.find (self.s, '\n', self.pos)
if (i < 0):
r = self.s[self.pos:]
self.pos = len (self.s)
return r
else:
r = self.s[self.pos:i + 1]
self.pos = i + 1
return r
def readlines (self):
r = []
while 1:
l = self.readline ()
if (l == ''):
return r
r.append (l)
def close (self):
return
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