diff options
Diffstat (limited to 'lib/python2.7/email/parser.py')
-rw-r--r-- | lib/python2.7/email/parser.py | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/lib/python2.7/email/parser.py b/lib/python2.7/email/parser.py new file mode 100644 index 0000000..6dad32a --- /dev/null +++ b/lib/python2.7/email/parser.py @@ -0,0 +1,91 @@ +# Copyright (C) 2001-2006 Python Software Foundation +# Author: Barry Warsaw, Thomas Wouters, Anthony Baxter +# Contact: email-sig@python.org + +"""A parser of RFC 2822 and MIME email messages.""" + +__all__ = ['Parser', 'HeaderParser'] + +import warnings +from cStringIO import StringIO + +from email.feedparser import FeedParser +from email.message import Message + + + +class Parser: + def __init__(self, *args, **kws): + """Parser of RFC 2822 and MIME email messages. + + Creates an in-memory object tree representing the email message, which + can then be manipulated and turned over to a Generator to return the + textual representation of the message. + + The string must be formatted as a block of RFC 2822 headers and header + continuation lines, optionally preceded by a `Unix-from' header. The + header block is terminated either by the end of the string or by a + blank line. + + _class is the class to instantiate for new message objects when they + must be created. This class must have a constructor that can take + zero arguments. Default is Message.Message. + """ + if len(args) >= 1: + if '_class' in kws: + raise TypeError("Multiple values for keyword arg '_class'") + kws['_class'] = args[0] + if len(args) == 2: + if 'strict' in kws: + raise TypeError("Multiple values for keyword arg 'strict'") + kws['strict'] = args[1] + if len(args) > 2: + raise TypeError('Too many arguments') + if '_class' in kws: + self._class = kws['_class'] + del kws['_class'] + else: + self._class = Message + if 'strict' in kws: + warnings.warn("'strict' argument is deprecated (and ignored)", + DeprecationWarning, 2) + del kws['strict'] + if kws: + raise TypeError('Unexpected keyword arguments') + + 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: + data = fp.read(8192) + if not data: + break + feedparser.feed(data) + return feedparser.close() + + def parsestr(self, text, headersonly=False): + """Create a message structure from a string. + + 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. + """ + return self.parse(StringIO(text), headersonly=headersonly) + + + +class HeaderParser(Parser): + def parse(self, fp, headersonly=True): + return Parser.parse(self, fp, True) + + def parsestr(self, text, headersonly=True): + return Parser.parsestr(self, text, True) |