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Bryan Kaperick
erp5
Commits
3eb9c812
Commit
3eb9c812
authored
Sep 29, 2011
by
Julien Muchembled
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Email Patches
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Python monkey-patch to speed up email parsing
parent
382916b8
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product/ERP5Type/patches/python.py
product/ERP5Type/patches/python.py
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product/ERP5Type/patches/python.py
View file @
3eb9c812
...
@@ -113,6 +113,62 @@ if sys.version_info < (2, 7):
...
@@ -113,6 +113,62 @@ if sys.version_info < (2, 7):
collections
.
OrderedDict
=
OrderedDict
collections
.
OrderedDict
=
OrderedDict
if
1
:
# Speed up email parsing (see also http://bugs.python.org/issue1243730)
from
email
import
Parser
as
parser
,
FeedParser
as
feedparser
# BBB
NLCRE_crack_split
=
feedparser
.
NLCRE_crack
.
split
def
push
(
self
,
data
):
"""Push some new data into this object."""
# <patch>
if
self
.
_partial
[
-
1
:]
==
'
\
r
'
:
parts
=
NLCRE_crack_split
(
'
\
r
'
+
data
)
parts
[
0
]
=
self
.
_partial
[:
-
1
]
else
:
parts
=
NLCRE_crack_split
(
data
)
parts
[
0
]
=
self
.
_partial
+
parts
[
0
]
# </patch>
# The *ahem* interesting behaviour of re.split when supplied grouping
# parentheses is that the last element of the resulting list is the
# data after the final RE. In the case of a NL/CR terminated string,
# this is the empty string.
self
.
_partial
=
parts
.
pop
()
#GAN 29Mar09 bugs 1555570, 1721862 Confusion at 8K boundary ending with \r:
# is there a \n to follow later?
if
not
self
.
_partial
and
parts
and
parts
[
-
1
].
endswith
(
'
\
r
'
):
self
.
_partial
=
parts
.
pop
(
-
2
)
+
parts
.
pop
()
# parts is a list of strings, alternating between the line contents
# and the eol character(s). Gather up a list of lines after
# re-attaching the newlines.
lines
=
[]
for
i
in
range
(
len
(
parts
)
//
2
):
lines
.
append
(
parts
[
i
*
2
]
+
parts
[
i
*
2
+
1
])
self
.
pushlines
(
lines
)
feedparser
.
BufferedSubFile
.
push
=
push
FeedParser
=
feedparser
.
FeedParser
def
parse
(
self
,
fp
,
headersonly
=
False
):
"""Create a message structure from the data in a file.
Reads all the data from the file and returns the root of the message
structure. Optional headersonly is a flag specifying whether to stop
parsing after reading the headers or not. The default is False,
meaning it parses the entire contents of the file.
"""
feedparser
=
FeedParser
(
self
.
_class
)
if
headersonly
:
feedparser
.
_set_headersonly
()
while
True
:
# <patch>
data
=
fp
.
read
(
65536
)
# </patch>
if
not
data
:
break
feedparser
.
feed
(
data
)
return
feedparser
.
close
()
parser
.
Parser
.
parse
=
parse
# Workaround bad use of getcwd() in docutils.
# Workaround bad use of getcwd() in docutils.
# Required by PortalTransforms.transforms.rest
# Required by PortalTransforms.transforms.rest
from
docutils
import
utils
from
docutils
import
utils
...
...
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