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v0.5.1
v0.5.1
https://github.com/python/cpython
Revision 2834b974b6a085ee447a060ab0c12b3955b2f695 authored by Guido van Rossum on 06 October 2000, 16:58:26 UTC, committed by Guido van Rossum on 06 October 2000, 16:58:26 UTC
http://sourceforge.net/bugs/?func=detailbug&bug_id=113803&group_id=5470 Add Unicode support and error handling to AsString(). Both AsString() and Merge() now return NULL and set a proper Python exception condition when an error happens; Merge() and other callers of AsString() check for errors from AsString(). Also fixed cleanup in Merge() and Tkapp_Call() return cleanup code; the fv array was not necessarily completely initialized, causing calls to ckfree() with garbage arguments! (Also reindented some lines that were longer than 80 chars and reformatted some code that used an alien coding standard.)
1 parent 4764913
Tip revision: 2834b974b6a085ee447a060ab0c12b3955b2f695 authored by Guido van Rossum on 06 October 2000, 16:58:26 UTC
[ Bug #113803 ] [2.0b1 NT4.0] printing non asci char causes idle to abort
[ Bug #113803 ] [2.0b1 NT4.0] printing non asci char causes idle to abort
Tip revision: 2834b97
multifile.py
"""A readline()-style interface to the parts of a multipart message.
The MultiFile class 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.
If seekable is given as 0, the class code will not do the bookkeeping
it normally attempts in order to make seeks relative to the beginning of the
current file part. This may be useful when using MultiFile with a non-
seekable stream object.
"""
import sys
import string
class Error(Exception):
pass
class MultiFile:
seekable = 0
def __init__(self, fp, seekable=1):
self.fp = fp
self.stack = [] # Grows down
self.level = 0
self.last = 0
if seekable:
self.seekable = 1
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, whence=0):
here = self.tell()
if whence:
if whence == 1:
pos = pos + here
elif whence == 2:
if self.level > 0:
pos = pos + self.lastpos
else:
raise Error, "can't use whence=2 yet"
if not 0 <= pos <= here 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()
# Real EOF?
if not line:
self.level = len(self.stack)
self.last = (self.level > 0)
if self.last:
raise Error, 'sudden EOF in MultiFile.readline()'
return ''
assert self.level == 0
# Fast check to see if this is just data
if self.is_data(line):
return line
else:
# Ignore trailing whitespace on marker lines
k = len(line) - 1;
while line[k] in string.whitespace:
k = k - 1
marker = line[:k+1]
# No? OK, try to match a boundary.
# Return the line (unstripped) if we don't.
for i in range(len(self.stack)):
sep = self.stack[i]
if marker == self.section_divider(sep):
self.last = 0
break
elif marker == self.end_marker(sep):
self.last = 1
break
else:
return line
# We only get here if we see a section divider or EOM line
if self.seekable:
self.lastpos = self.tell() - len(line)
self.level = i+1
if self.level > 1:
raise Error,'Missing endmarker in MultiFile.readline()'
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
if self.seekable:
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)
if self.seekable:
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]
if self.seekable:
self.start = self.posstack[0]
del self.posstack[0]
if self.level > 0:
self.lastpos = abslastpos - self.start
def is_data(self, line):
return line[:2] <> '--'
def section_divider(self, str):
return "--" + str
def end_marker(self, str):
return "--" + str + "--"
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