1005 lines
33 KiB
Python
1005 lines
33 KiB
Python
"""MH interface -- purely object-oriented (well, almost)
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Executive summary:
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import mhlib
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mh = mhlib.MH() # use default mailbox directory and profile
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mh = mhlib.MH(mailbox) # override mailbox location (default from profile)
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mh = mhlib.MH(mailbox, profile) # override mailbox and profile
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mh.error(format, ...) # print error message -- can be overridden
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s = mh.getprofile(key) # profile entry (None if not set)
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path = mh.getpath() # mailbox pathname
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name = mh.getcontext() # name of current folder
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mh.setcontext(name) # set name of current folder
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list = mh.listfolders() # names of top-level folders
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list = mh.listallfolders() # names of all folders, including subfolders
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list = mh.listsubfolders(name) # direct subfolders of given folder
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list = mh.listallsubfolders(name) # all subfolders of given folder
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mh.makefolder(name) # create new folder
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mh.deletefolder(name) # delete folder -- must have no subfolders
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f = mh.openfolder(name) # new open folder object
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f.error(format, ...) # same as mh.error(format, ...)
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path = f.getfullname() # folder's full pathname
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path = f.getsequencesfilename() # full pathname of folder's sequences file
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path = f.getmessagefilename(n) # full pathname of message n in folder
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list = f.listmessages() # list of messages in folder (as numbers)
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n = f.getcurrent() # get current message
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f.setcurrent(n) # set current message
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list = f.parsesequence(seq) # parse msgs syntax into list of messages
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n = f.getlast() # get last message (0 if no messagse)
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f.setlast(n) # set last message (internal use only)
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dict = f.getsequences() # dictionary of sequences in folder {name: list}
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f.putsequences(dict) # write sequences back to folder
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f.createmessage(n, fp) # add message from file f as number n
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f.removemessages(list) # remove messages in list from folder
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f.refilemessages(list, tofolder) # move messages in list to other folder
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f.movemessage(n, tofolder, ton) # move one message to a given destination
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f.copymessage(n, tofolder, ton) # copy one message to a given destination
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m = f.openmessage(n) # new open message object (costs a file descriptor)
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m is a derived class of mimetools.Message(rfc822.Message), with:
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s = m.getheadertext() # text of message's headers
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s = m.getheadertext(pred) # text of message's headers, filtered by pred
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s = m.getbodytext() # text of message's body, decoded
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s = m.getbodytext(0) # text of message's body, not decoded
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"""
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from warnings import warnpy3k
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warnpy3k("the mhlib module has been removed in Python 3.0; use the mailbox "
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"module instead", stacklevel=2)
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del warnpy3k
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# XXX To do, functionality:
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# - annotate messages
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# - send messages
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#
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# XXX To do, organization:
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# - move IntSet to separate file
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# - move most Message functionality to module mimetools
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# Customizable defaults
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MH_PROFILE = '~/.mh_profile'
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PATH = '~/Mail'
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MH_SEQUENCES = '.mh_sequences'
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FOLDER_PROTECT = 0700
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# Imported modules
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import os
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import sys
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import re
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import mimetools
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import multifile
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import shutil
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from bisect import bisect
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__all__ = ["MH","Error","Folder","Message"]
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# Exported constants
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class Error(Exception):
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pass
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class MH:
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"""Class representing a particular collection of folders.
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Optional constructor arguments are the pathname for the directory
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containing the collection, and the MH profile to use.
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If either is omitted or empty a default is used; the default
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directory is taken from the MH profile if it is specified there."""
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def __init__(self, path = None, profile = None):
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"""Constructor."""
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if profile is None: profile = MH_PROFILE
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self.profile = os.path.expanduser(profile)
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if path is None: path = self.getprofile('Path')
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if not path: path = PATH
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if not os.path.isabs(path) and path[0] != '~':
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path = os.path.join('~', path)
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path = os.path.expanduser(path)
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if not os.path.isdir(path): raise Error, 'MH() path not found'
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self.path = path
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def __repr__(self):
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"""String representation."""
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return 'MH(%r, %r)' % (self.path, self.profile)
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def error(self, msg, *args):
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"""Routine to print an error. May be overridden by a derived class."""
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sys.stderr.write('MH error: %s\n' % (msg % args))
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def getprofile(self, key):
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"""Return a profile entry, None if not found."""
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return pickline(self.profile, key)
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def getpath(self):
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"""Return the path (the name of the collection's directory)."""
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return self.path
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def getcontext(self):
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"""Return the name of the current folder."""
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context = pickline(os.path.join(self.getpath(), 'context'),
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'Current-Folder')
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if not context: context = 'inbox'
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return context
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def setcontext(self, context):
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"""Set the name of the current folder."""
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fn = os.path.join(self.getpath(), 'context')
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f = open(fn, "w")
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f.write("Current-Folder: %s\n" % context)
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f.close()
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def listfolders(self):
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"""Return the names of the top-level folders."""
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folders = []
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path = self.getpath()
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for name in os.listdir(path):
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fullname = os.path.join(path, name)
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if os.path.isdir(fullname):
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folders.append(name)
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folders.sort()
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return folders
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def listsubfolders(self, name):
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"""Return the names of the subfolders in a given folder
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(prefixed with the given folder name)."""
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fullname = os.path.join(self.path, name)
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# Get the link count so we can avoid listing folders
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# that have no subfolders.
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nlinks = os.stat(fullname).st_nlink
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if nlinks <= 2:
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return []
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subfolders = []
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subnames = os.listdir(fullname)
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for subname in subnames:
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fullsubname = os.path.join(fullname, subname)
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if os.path.isdir(fullsubname):
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name_subname = os.path.join(name, subname)
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subfolders.append(name_subname)
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# Stop looking for subfolders when
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# we've seen them all
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nlinks = nlinks - 1
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if nlinks <= 2:
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break
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subfolders.sort()
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return subfolders
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def listallfolders(self):
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"""Return the names of all folders and subfolders, recursively."""
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return self.listallsubfolders('')
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def listallsubfolders(self, name):
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"""Return the names of subfolders in a given folder, recursively."""
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fullname = os.path.join(self.path, name)
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# Get the link count so we can avoid listing folders
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# that have no subfolders.
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nlinks = os.stat(fullname).st_nlink
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if nlinks <= 2:
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return []
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subfolders = []
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subnames = os.listdir(fullname)
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for subname in subnames:
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if subname[0] == ',' or isnumeric(subname): continue
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fullsubname = os.path.join(fullname, subname)
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if os.path.isdir(fullsubname):
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name_subname = os.path.join(name, subname)
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subfolders.append(name_subname)
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if not os.path.islink(fullsubname):
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subsubfolders = self.listallsubfolders(
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name_subname)
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subfolders = subfolders + subsubfolders
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# Stop looking for subfolders when
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# we've seen them all
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nlinks = nlinks - 1
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if nlinks <= 2:
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break
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subfolders.sort()
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return subfolders
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def openfolder(self, name):
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"""Return a new Folder object for the named folder."""
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return Folder(self, name)
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def makefolder(self, name):
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"""Create a new folder (or raise os.error if it cannot be created)."""
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protect = pickline(self.profile, 'Folder-Protect')
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if protect and isnumeric(protect):
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mode = int(protect, 8)
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else:
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mode = FOLDER_PROTECT
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os.mkdir(os.path.join(self.getpath(), name), mode)
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def deletefolder(self, name):
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"""Delete a folder. This removes files in the folder but not
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subdirectories. Raise os.error if deleting the folder itself fails."""
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fullname = os.path.join(self.getpath(), name)
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for subname in os.listdir(fullname):
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fullsubname = os.path.join(fullname, subname)
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try:
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os.unlink(fullsubname)
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except os.error:
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self.error('%s not deleted, continuing...' %
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fullsubname)
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os.rmdir(fullname)
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numericprog = re.compile('^[1-9][0-9]*$')
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def isnumeric(str):
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return numericprog.match(str) is not None
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class Folder:
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"""Class representing a particular folder."""
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def __init__(self, mh, name):
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"""Constructor."""
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self.mh = mh
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self.name = name
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if not os.path.isdir(self.getfullname()):
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raise Error, 'no folder %s' % name
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def __repr__(self):
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"""String representation."""
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return 'Folder(%r, %r)' % (self.mh, self.name)
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def error(self, *args):
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"""Error message handler."""
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self.mh.error(*args)
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def getfullname(self):
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"""Return the full pathname of the folder."""
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return os.path.join(self.mh.path, self.name)
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def getsequencesfilename(self):
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"""Return the full pathname of the folder's sequences file."""
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return os.path.join(self.getfullname(), MH_SEQUENCES)
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def getmessagefilename(self, n):
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"""Return the full pathname of a message in the folder."""
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return os.path.join(self.getfullname(), str(n))
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def listsubfolders(self):
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"""Return list of direct subfolders."""
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return self.mh.listsubfolders(self.name)
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def listallsubfolders(self):
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"""Return list of all subfolders."""
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return self.mh.listallsubfolders(self.name)
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def listmessages(self):
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"""Return the list of messages currently present in the folder.
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As a side effect, set self.last to the last message (or 0)."""
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messages = []
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match = numericprog.match
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append = messages.append
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for name in os.listdir(self.getfullname()):
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if match(name):
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append(name)
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messages = map(int, messages)
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messages.sort()
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if messages:
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self.last = messages[-1]
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else:
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self.last = 0
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return messages
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def getsequences(self):
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"""Return the set of sequences for the folder."""
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sequences = {}
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fullname = self.getsequencesfilename()
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try:
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f = open(fullname, 'r')
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except IOError:
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return sequences
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while 1:
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line = f.readline()
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if not line: break
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fields = line.split(':')
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if len(fields) != 2:
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self.error('bad sequence in %s: %s' %
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(fullname, line.strip()))
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key = fields[0].strip()
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value = IntSet(fields[1].strip(), ' ').tolist()
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sequences[key] = value
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return sequences
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def putsequences(self, sequences):
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"""Write the set of sequences back to the folder."""
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fullname = self.getsequencesfilename()
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f = None
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for key, seq in sequences.iteritems():
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s = IntSet('', ' ')
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s.fromlist(seq)
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if not f: f = open(fullname, 'w')
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f.write('%s: %s\n' % (key, s.tostring()))
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if not f:
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try:
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os.unlink(fullname)
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except os.error:
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pass
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else:
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f.close()
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def getcurrent(self):
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"""Return the current message. Raise Error when there is none."""
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seqs = self.getsequences()
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try:
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return max(seqs['cur'])
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except (ValueError, KeyError):
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raise Error, "no cur message"
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def setcurrent(self, n):
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"""Set the current message."""
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updateline(self.getsequencesfilename(), 'cur', str(n), 0)
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def parsesequence(self, seq):
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"""Parse an MH sequence specification into a message list.
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Attempt to mimic mh-sequence(5) as close as possible.
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Also attempt to mimic observed behavior regarding which
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conditions cause which error messages."""
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# XXX Still not complete (see mh-format(5)).
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# Missing are:
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# - 'prev', 'next' as count
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# - Sequence-Negation option
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all = self.listmessages()
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# Observed behavior: test for empty folder is done first
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if not all:
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raise Error, "no messages in %s" % self.name
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# Common case first: all is frequently the default
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if seq == 'all':
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return all
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# Test for X:Y before X-Y because 'seq:-n' matches both
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i = seq.find(':')
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if i >= 0:
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head, dir, tail = seq[:i], '', seq[i+1:]
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if tail[:1] in '-+':
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dir, tail = tail[:1], tail[1:]
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if not isnumeric(tail):
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raise Error, "bad message list %s" % seq
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try:
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count = int(tail)
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except (ValueError, OverflowError):
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# Can't use sys.maxint because of i+count below
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count = len(all)
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try:
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anchor = self._parseindex(head, all)
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except Error, msg:
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seqs = self.getsequences()
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if not head in seqs:
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if not msg:
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msg = "bad message list %s" % seq
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raise Error, msg, sys.exc_info()[2]
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msgs = seqs[head]
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if not msgs:
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raise Error, "sequence %s empty" % head
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if dir == '-':
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return msgs[-count:]
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else:
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return msgs[:count]
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else:
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if not dir:
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if head in ('prev', 'last'):
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dir = '-'
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if dir == '-':
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i = bisect(all, anchor)
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return all[max(0, i-count):i]
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else:
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i = bisect(all, anchor-1)
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return all[i:i+count]
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# Test for X-Y next
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i = seq.find('-')
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if i >= 0:
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begin = self._parseindex(seq[:i], all)
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end = self._parseindex(seq[i+1:], all)
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i = bisect(all, begin-1)
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j = bisect(all, end)
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r = all[i:j]
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if not r:
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raise Error, "bad message list %s" % seq
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return r
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# Neither X:Y nor X-Y; must be a number or a (pseudo-)sequence
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try:
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n = self._parseindex(seq, all)
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except Error, msg:
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seqs = self.getsequences()
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if not seq in seqs:
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if not msg:
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msg = "bad message list %s" % seq
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raise Error, msg
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return seqs[seq]
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else:
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if n not in all:
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if isnumeric(seq):
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raise Error, "message %d doesn't exist" % n
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else:
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raise Error, "no %s message" % seq
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else:
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return [n]
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def _parseindex(self, seq, all):
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"""Internal: parse a message number (or cur, first, etc.)."""
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if isnumeric(seq):
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try:
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return int(seq)
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except (OverflowError, ValueError):
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return sys.maxint
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if seq in ('cur', '.'):
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return self.getcurrent()
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if seq == 'first':
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return all[0]
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if seq == 'last':
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return all[-1]
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if seq == 'next':
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n = self.getcurrent()
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i = bisect(all, n)
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try:
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return all[i]
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except IndexError:
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raise Error, "no next message"
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if seq == 'prev':
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n = self.getcurrent()
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i = bisect(all, n-1)
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if i == 0:
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raise Error, "no prev message"
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try:
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return all[i-1]
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except IndexError:
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raise Error, "no prev message"
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raise Error, None
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def openmessage(self, n):
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"""Open a message -- returns a Message object."""
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return Message(self, n)
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def removemessages(self, list):
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"""Remove one or more messages -- may raise os.error."""
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errors = []
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deleted = []
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for n in list:
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path = self.getmessagefilename(n)
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commapath = self.getmessagefilename(',' + str(n))
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try:
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os.unlink(commapath)
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except os.error:
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pass
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try:
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os.rename(path, commapath)
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except os.error, msg:
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errors.append(msg)
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else:
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deleted.append(n)
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if deleted:
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self.removefromallsequences(deleted)
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if errors:
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if len(errors) == 1:
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raise os.error, errors[0]
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else:
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raise os.error, ('multiple errors:', errors)
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def refilemessages(self, list, tofolder, keepsequences=0):
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"""Refile one or more messages -- may raise os.error.
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'tofolder' is an open folder object."""
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errors = []
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refiled = {}
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for n in list:
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ton = tofolder.getlast() + 1
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path = self.getmessagefilename(n)
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topath = tofolder.getmessagefilename(ton)
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try:
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os.rename(path, topath)
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except os.error:
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# Try copying
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try:
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shutil.copy2(path, topath)
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os.unlink(path)
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except (IOError, os.error), msg:
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errors.append(msg)
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try:
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os.unlink(topath)
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except os.error:
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pass
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continue
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tofolder.setlast(ton)
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refiled[n] = ton
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if refiled:
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if keepsequences:
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tofolder._copysequences(self, refiled.items())
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self.removefromallsequences(refiled.keys())
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if errors:
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if len(errors) == 1:
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|
raise os.error, errors[0]
|
|
else:
|
|
raise os.error, ('multiple errors:', errors)
|
|
|
|
def _copysequences(self, fromfolder, refileditems):
|
|
"""Helper for refilemessages() to copy sequences."""
|
|
fromsequences = fromfolder.getsequences()
|
|
tosequences = self.getsequences()
|
|
changed = 0
|
|
for name, seq in fromsequences.items():
|
|
try:
|
|
toseq = tosequences[name]
|
|
new = 0
|
|
except KeyError:
|
|
toseq = []
|
|
new = 1
|
|
for fromn, ton in refileditems:
|
|
if fromn in seq:
|
|
toseq.append(ton)
|
|
changed = 1
|
|
if new and toseq:
|
|
tosequences[name] = toseq
|
|
if changed:
|
|
self.putsequences(tosequences)
|
|
|
|
def movemessage(self, n, tofolder, ton):
|
|
"""Move one message over a specific destination message,
|
|
which may or may not already exist."""
|
|
path = self.getmessagefilename(n)
|
|
# Open it to check that it exists
|
|
f = open(path)
|
|
f.close()
|
|
del f
|
|
topath = tofolder.getmessagefilename(ton)
|
|
backuptopath = tofolder.getmessagefilename(',%d' % ton)
|
|
try:
|
|
os.rename(topath, backuptopath)
|
|
except os.error:
|
|
pass
|
|
try:
|
|
os.rename(path, topath)
|
|
except os.error:
|
|
# Try copying
|
|
ok = 0
|
|
try:
|
|
tofolder.setlast(None)
|
|
shutil.copy2(path, topath)
|
|
ok = 1
|
|
finally:
|
|
if not ok:
|
|
try:
|
|
os.unlink(topath)
|
|
except os.error:
|
|
pass
|
|
os.unlink(path)
|
|
self.removefromallsequences([n])
|
|
|
|
def copymessage(self, n, tofolder, ton):
|
|
"""Copy one message over a specific destination message,
|
|
which may or may not already exist."""
|
|
path = self.getmessagefilename(n)
|
|
# Open it to check that it exists
|
|
f = open(path)
|
|
f.close()
|
|
del f
|
|
topath = tofolder.getmessagefilename(ton)
|
|
backuptopath = tofolder.getmessagefilename(',%d' % ton)
|
|
try:
|
|
os.rename(topath, backuptopath)
|
|
except os.error:
|
|
pass
|
|
ok = 0
|
|
try:
|
|
tofolder.setlast(None)
|
|
shutil.copy2(path, topath)
|
|
ok = 1
|
|
finally:
|
|
if not ok:
|
|
try:
|
|
os.unlink(topath)
|
|
except os.error:
|
|
pass
|
|
|
|
def createmessage(self, n, txt):
|
|
"""Create a message, with text from the open file txt."""
|
|
path = self.getmessagefilename(n)
|
|
backuppath = self.getmessagefilename(',%d' % n)
|
|
try:
|
|
os.rename(path, backuppath)
|
|
except os.error:
|
|
pass
|
|
ok = 0
|
|
BUFSIZE = 16*1024
|
|
try:
|
|
f = open(path, "w")
|
|
while 1:
|
|
buf = txt.read(BUFSIZE)
|
|
if not buf:
|
|
break
|
|
f.write(buf)
|
|
f.close()
|
|
ok = 1
|
|
finally:
|
|
if not ok:
|
|
try:
|
|
os.unlink(path)
|
|
except os.error:
|
|
pass
|
|
|
|
def removefromallsequences(self, list):
|
|
"""Remove one or more messages from all sequences (including last)
|
|
-- but not from 'cur'!!!"""
|
|
if hasattr(self, 'last') and self.last in list:
|
|
del self.last
|
|
sequences = self.getsequences()
|
|
changed = 0
|
|
for name, seq in sequences.items():
|
|
if name == 'cur':
|
|
continue
|
|
for n in list:
|
|
if n in seq:
|
|
seq.remove(n)
|
|
changed = 1
|
|
if not seq:
|
|
del sequences[name]
|
|
if changed:
|
|
self.putsequences(sequences)
|
|
|
|
def getlast(self):
|
|
"""Return the last message number."""
|
|
if not hasattr(self, 'last'):
|
|
self.listmessages() # Set self.last
|
|
return self.last
|
|
|
|
def setlast(self, last):
|
|
"""Set the last message number."""
|
|
if last is None:
|
|
if hasattr(self, 'last'):
|
|
del self.last
|
|
else:
|
|
self.last = last
|
|
|
|
class Message(mimetools.Message):
|
|
|
|
def __init__(self, f, n, fp = None):
|
|
"""Constructor."""
|
|
self.folder = f
|
|
self.number = n
|
|
if fp is None:
|
|
path = f.getmessagefilename(n)
|
|
fp = open(path, 'r')
|
|
mimetools.Message.__init__(self, fp)
|
|
|
|
def __repr__(self):
|
|
"""String representation."""
|
|
return 'Message(%s, %s)' % (repr(self.folder), self.number)
|
|
|
|
def getheadertext(self, pred = None):
|
|
"""Return the message's header text as a string. If an
|
|
argument is specified, it is used as a filter predicate to
|
|
decide which headers to return (its argument is the header
|
|
name converted to lower case)."""
|
|
if pred is None:
|
|
return ''.join(self.headers)
|
|
headers = []
|
|
hit = 0
|
|
for line in self.headers:
|
|
if not line[0].isspace():
|
|
i = line.find(':')
|
|
if i > 0:
|
|
hit = pred(line[:i].lower())
|
|
if hit: headers.append(line)
|
|
return ''.join(headers)
|
|
|
|
def getbodytext(self, decode = 1):
|
|
"""Return the message's body text as string. This undoes a
|
|
Content-Transfer-Encoding, but does not interpret other MIME
|
|
features (e.g. multipart messages). To suppress decoding,
|
|
pass 0 as an argument."""
|
|
self.fp.seek(self.startofbody)
|
|
encoding = self.getencoding()
|
|
if not decode or encoding in ('', '7bit', '8bit', 'binary'):
|
|
return self.fp.read()
|
|
try:
|
|
from cStringIO import StringIO
|
|
except ImportError:
|
|
from StringIO import StringIO
|
|
output = StringIO()
|
|
mimetools.decode(self.fp, output, encoding)
|
|
return output.getvalue()
|
|
|
|
def getbodyparts(self):
|
|
"""Only for multipart messages: return the message's body as a
|
|
list of SubMessage objects. Each submessage object behaves
|
|
(almost) as a Message object."""
|
|
if self.getmaintype() != 'multipart':
|
|
raise Error, 'Content-Type is not multipart/*'
|
|
bdry = self.getparam('boundary')
|
|
if not bdry:
|
|
raise Error, 'multipart/* without boundary param'
|
|
self.fp.seek(self.startofbody)
|
|
mf = multifile.MultiFile(self.fp)
|
|
mf.push(bdry)
|
|
parts = []
|
|
while mf.next():
|
|
n = "%s.%r" % (self.number, 1 + len(parts))
|
|
part = SubMessage(self.folder, n, mf)
|
|
parts.append(part)
|
|
mf.pop()
|
|
return parts
|
|
|
|
def getbody(self):
|
|
"""Return body, either a string or a list of messages."""
|
|
if self.getmaintype() == 'multipart':
|
|
return self.getbodyparts()
|
|
else:
|
|
return self.getbodytext()
|
|
|
|
|
|
class SubMessage(Message):
|
|
|
|
def __init__(self, f, n, fp):
|
|
"""Constructor."""
|
|
Message.__init__(self, f, n, fp)
|
|
if self.getmaintype() == 'multipart':
|
|
self.body = Message.getbodyparts(self)
|
|
else:
|
|
self.body = Message.getbodytext(self)
|
|
self.bodyencoded = Message.getbodytext(self, decode=0)
|
|
# XXX If this is big, should remember file pointers
|
|
|
|
def __repr__(self):
|
|
"""String representation."""
|
|
f, n, fp = self.folder, self.number, self.fp
|
|
return 'SubMessage(%s, %s, %s)' % (f, n, fp)
|
|
|
|
def getbodytext(self, decode = 1):
|
|
if not decode:
|
|
return self.bodyencoded
|
|
if type(self.body) == type(''):
|
|
return self.body
|
|
|
|
def getbodyparts(self):
|
|
if type(self.body) == type([]):
|
|
return self.body
|
|
|
|
def getbody(self):
|
|
return self.body
|
|
|
|
|
|
class IntSet:
|
|
"""Class implementing sets of integers.
|
|
|
|
This is an efficient representation for sets consisting of several
|
|
continuous ranges, e.g. 1-100,200-400,402-1000 is represented
|
|
internally as a list of three pairs: [(1,100), (200,400),
|
|
(402,1000)]. The internal representation is always kept normalized.
|
|
|
|
The constructor has up to three arguments:
|
|
- the string used to initialize the set (default ''),
|
|
- the separator between ranges (default ',')
|
|
- the separator between begin and end of a range (default '-')
|
|
The separators must be strings (not regexprs) and should be different.
|
|
|
|
The tostring() function yields a string that can be passed to another
|
|
IntSet constructor; __repr__() is a valid IntSet constructor itself.
|
|
"""
|
|
|
|
# XXX The default begin/end separator means that negative numbers are
|
|
# not supported very well.
|
|
#
|
|
# XXX There are currently no operations to remove set elements.
|
|
|
|
def __init__(self, data = None, sep = ',', rng = '-'):
|
|
self.pairs = []
|
|
self.sep = sep
|
|
self.rng = rng
|
|
if data: self.fromstring(data)
|
|
|
|
def reset(self):
|
|
self.pairs = []
|
|
|
|
def __cmp__(self, other):
|
|
return cmp(self.pairs, other.pairs)
|
|
|
|
def __hash__(self):
|
|
return hash(self.pairs)
|
|
|
|
def __repr__(self):
|
|
return 'IntSet(%r, %r, %r)' % (self.tostring(), self.sep, self.rng)
|
|
|
|
def normalize(self):
|
|
self.pairs.sort()
|
|
i = 1
|
|
while i < len(self.pairs):
|
|
alo, ahi = self.pairs[i-1]
|
|
blo, bhi = self.pairs[i]
|
|
if ahi >= blo-1:
|
|
self.pairs[i-1:i+1] = [(alo, max(ahi, bhi))]
|
|
else:
|
|
i = i+1
|
|
|
|
def tostring(self):
|
|
s = ''
|
|
for lo, hi in self.pairs:
|
|
if lo == hi: t = repr(lo)
|
|
else: t = repr(lo) + self.rng + repr(hi)
|
|
if s: s = s + (self.sep + t)
|
|
else: s = t
|
|
return s
|
|
|
|
def tolist(self):
|
|
l = []
|
|
for lo, hi in self.pairs:
|
|
m = range(lo, hi+1)
|
|
l = l + m
|
|
return l
|
|
|
|
def fromlist(self, list):
|
|
for i in list:
|
|
self.append(i)
|
|
|
|
def clone(self):
|
|
new = IntSet()
|
|
new.pairs = self.pairs[:]
|
|
return new
|
|
|
|
def min(self):
|
|
return self.pairs[0][0]
|
|
|
|
def max(self):
|
|
return self.pairs[-1][-1]
|
|
|
|
def contains(self, x):
|
|
for lo, hi in self.pairs:
|
|
if lo <= x <= hi: return True
|
|
return False
|
|
|
|
def append(self, x):
|
|
for i in range(len(self.pairs)):
|
|
lo, hi = self.pairs[i]
|
|
if x < lo: # Need to insert before
|
|
if x+1 == lo:
|
|
self.pairs[i] = (x, hi)
|
|
else:
|
|
self.pairs.insert(i, (x, x))
|
|
if i > 0 and x-1 == self.pairs[i-1][1]:
|
|
# Merge with previous
|
|
self.pairs[i-1:i+1] = [
|
|
(self.pairs[i-1][0],
|
|
self.pairs[i][1])
|
|
]
|
|
return
|
|
if x <= hi: # Already in set
|
|
return
|
|
i = len(self.pairs) - 1
|
|
if i >= 0:
|
|
lo, hi = self.pairs[i]
|
|
if x-1 == hi:
|
|
self.pairs[i] = lo, x
|
|
return
|
|
self.pairs.append((x, x))
|
|
|
|
def addpair(self, xlo, xhi):
|
|
if xlo > xhi: return
|
|
self.pairs.append((xlo, xhi))
|
|
self.normalize()
|
|
|
|
def fromstring(self, data):
|
|
new = []
|
|
for part in data.split(self.sep):
|
|
list = []
|
|
for subp in part.split(self.rng):
|
|
s = subp.strip()
|
|
list.append(int(s))
|
|
if len(list) == 1:
|
|
new.append((list[0], list[0]))
|
|
elif len(list) == 2 and list[0] <= list[1]:
|
|
new.append((list[0], list[1]))
|
|
else:
|
|
raise ValueError, 'bad data passed to IntSet'
|
|
self.pairs = self.pairs + new
|
|
self.normalize()
|
|
|
|
|
|
# Subroutines to read/write entries in .mh_profile and .mh_sequences
|
|
|
|
def pickline(file, key, casefold = 1):
|
|
try:
|
|
f = open(file, 'r')
|
|
except IOError:
|
|
return None
|
|
pat = re.escape(key) + ':'
|
|
prog = re.compile(pat, casefold and re.IGNORECASE)
|
|
while 1:
|
|
line = f.readline()
|
|
if not line: break
|
|
if prog.match(line):
|
|
text = line[len(key)+1:]
|
|
while 1:
|
|
line = f.readline()
|
|
if not line or not line[0].isspace():
|
|
break
|
|
text = text + line
|
|
return text.strip()
|
|
return None
|
|
|
|
def updateline(file, key, value, casefold = 1):
|
|
try:
|
|
f = open(file, 'r')
|
|
lines = f.readlines()
|
|
f.close()
|
|
except IOError:
|
|
lines = []
|
|
pat = re.escape(key) + ':(.*)\n'
|
|
prog = re.compile(pat, casefold and re.IGNORECASE)
|
|
if value is None:
|
|
newline = None
|
|
else:
|
|
newline = '%s: %s\n' % (key, value)
|
|
for i in range(len(lines)):
|
|
line = lines[i]
|
|
if prog.match(line):
|
|
if newline is None:
|
|
del lines[i]
|
|
else:
|
|
lines[i] = newline
|
|
break
|
|
else:
|
|
if newline is not None:
|
|
lines.append(newline)
|
|
tempfile = file + "~"
|
|
f = open(tempfile, 'w')
|
|
for line in lines:
|
|
f.write(line)
|
|
f.close()
|
|
os.rename(tempfile, file)
|
|
|
|
|
|
# Test program
|
|
|
|
def test():
|
|
global mh, f
|
|
os.system('rm -rf $HOME/Mail/@test')
|
|
mh = MH()
|
|
def do(s): print s; print eval(s)
|
|
do('mh.listfolders()')
|
|
do('mh.listallfolders()')
|
|
testfolders = ['@test', '@test/test1', '@test/test2',
|
|
'@test/test1/test11', '@test/test1/test12',
|
|
'@test/test1/test11/test111']
|
|
for t in testfolders: do('mh.makefolder(%r)' % (t,))
|
|
do('mh.listsubfolders(\'@test\')')
|
|
do('mh.listallsubfolders(\'@test\')')
|
|
f = mh.openfolder('@test')
|
|
do('f.listsubfolders()')
|
|
do('f.listallsubfolders()')
|
|
do('f.getsequences()')
|
|
seqs = f.getsequences()
|
|
seqs['foo'] = IntSet('1-10 12-20', ' ').tolist()
|
|
print seqs
|
|
f.putsequences(seqs)
|
|
do('f.getsequences()')
|
|
for t in reversed(testfolders): do('mh.deletefolder(%r)' % (t,))
|
|
do('mh.getcontext()')
|
|
context = mh.getcontext()
|
|
f = mh.openfolder(context)
|
|
do('f.getcurrent()')
|
|
for seq in ('first', 'last', 'cur', '.', 'prev', 'next',
|
|
'first:3', 'last:3', 'cur:3', 'cur:-3',
|
|
'prev:3', 'next:3',
|
|
'1:3', '1:-3', '100:3', '100:-3', '10000:3', '10000:-3',
|
|
'all'):
|
|
try:
|
|
do('f.parsesequence(%r)' % (seq,))
|
|
except Error, msg:
|
|
print "Error:", msg
|
|
stuff = os.popen("pick %r 2>/dev/null" % (seq,)).read()
|
|
list = map(int, stuff.split())
|
|
print list, "<-- pick"
|
|
do('f.listmessages()')
|
|
|
|
|
|
if __name__ == '__main__':
|
|
test()
|