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authorGuido van Rossum <guido@python.org>1997-09-09 03:42:09 (GMT)
committerGuido van Rossum <guido@python.org>1997-09-09 03:42:09 (GMT)
commit5c1f5bd5f64c2c60afa5221862fd220cd086c5c8 (patch)
tree3bdb31396ddd2db733b6e216345900279a5b695f /Lib/dos_8x3/multifil.py
parentd7500fcbb4d0257f3bcd0c87d17ee61f3b1545e8 (diff)
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Renamed dos_8x3 to dos-8x3.
Diffstat (limited to 'Lib/dos_8x3/multifil.py')
-rwxr-xr-xLib/dos_8x3/multifil.py128
1 files changed, 0 insertions, 128 deletions
diff --git a/Lib/dos_8x3/multifil.py b/Lib/dos_8x3/multifil.py
deleted file mode 100755
index 71e0dd0..0000000
--- a/Lib/dos_8x3/multifil.py
+++ /dev/null
@@ -1,128 +0,0 @@
-# A class that makes each part of a multipart message "feel" like an
-# ordinary file, as long as you use fp.readline(). Allows recursive
-# use, for nested multipart messages. Probably best used together
-# with module mimetools.
-#
-# Suggested use:
-#
-# real_fp = open(...)
-# fp = MultiFile(real_fp)
-#
-# "read some lines from fp"
-# fp.push(separator)
-# while 1:
-# "read lines from fp until it returns an empty string" (A)
-# if not fp.next(): break
-# fp.pop()
-# "read remaining lines from fp until it returns an empty string"
-#
-# The latter sequence may be used recursively at (A).
-# It is also allowed to use multiple push()...pop() sequences.
-# Note that if a nested multipart message is terminated by a separator
-# for an outer message, this is not reported, even though it is really
-# illegal input.
-
-import sys
-import string
-
-err = sys.stderr.write
-
-Error = 'multifile.Error'
-
-class MultiFile:
- #
- def __init__(self, fp):
- self.fp = fp
- self.stack = [] # Grows down
- self.level = 0
- self.last = 0
- self.start = self.fp.tell()
- self.posstack = [] # Grows down
- #
- def tell(self):
- if self.level > 0:
- return self.lastpos
- return self.fp.tell() - self.start
- #
- def seek(self, pos):
- if not 0 <= pos <= self.tell() or \
- self.level > 0 and pos > self.lastpos:
- raise Error, 'bad MultiFile.seek() call'
- self.fp.seek(pos + self.start)
- self.level = 0
- self.last = 0
- #
- def readline(self):
- if self.level > 0: return ''
- line = self.fp.readline()
- if not line:
- self.level = len(self.stack)
- self.last = (self.level > 0)
- if self.last:
- err('*** Sudden EOF in MultiFile.readline()\n')
- return ''
- if line[:2] <> '--': return line
- n = len(line)
- k = n
- while k > 0 and line[k-1] in string.whitespace: k = k-1
- mark = line[2:k]
- if mark[-2:] == '--': mark1 = mark[:-2]
- else: mark1 = None
- for i in range(len(self.stack)):
- sep = self.stack[i]
- if sep == mark:
- self.last = 0
- break
- elif mark1 <> None and sep == mark1:
- self.last = 1
- break
- else:
- return line
- # Get here after break out of loop
- self.lastpos = self.tell() - len(line)
- self.level = i+1
- if self.level > 1:
- err('*** Missing endmarker in MultiFile.readline()\n')
- return ''
- #
- def readlines(self):
- list = []
- while 1:
- line = self.readline()
- if not line: break
- list.append(line)
- return list
- #
- def read(self): # Note: no size argument -- read until EOF only!
- return string.joinfields(self.readlines(), '')
- #
- def next(self):
- while self.readline(): pass
- if self.level > 1 or self.last:
- return 0
- self.level = 0
- self.last = 0
- self.start = self.fp.tell()
- return 1
- #
- def push(self, sep):
- if self.level > 0:
- raise Error, 'bad MultiFile.push() call'
- self.stack.insert(0, sep)
- self.posstack.insert(0, self.start)
- self.start = self.fp.tell()
- #
- def pop(self):
- if self.stack == []:
- raise Error, 'bad MultiFile.pop() call'
- if self.level <= 1:
- self.last = 0
- else:
- abslastpos = self.lastpos + self.start
- self.level = max(0, self.level - 1)
- del self.stack[0]
- self.start = self.posstack[0]
- del self.posstack[0]
- if self.level > 0:
- self.lastpos = abslastpos - self.start
- #