947 class ui:

   948     def __init__(self, verbose=False, debug=False, quiet=False,

   949                  interactive=True):

   950         self.quiet = quiet and not verbose and not debug

   951         self.verbose = verbose or debug

   952         self.debugflag = debug

   953         self.interactive = interactive

   954     def write(self, *args):

   955         for a in args:

   956             sys.stdout.write(str(a))

   957     def readline(self):

   958         return sys.stdin.readline()[:-1]

   959     def prompt(self, msg, pat, default = "y"):

   960         if not self.interactive: return default

   961         while 1:

   962             self.write(msg, " ")

   963             r = self.readline()

   964             if re.match(pat, r):

   965                 return r

   966             else:

   967                 self.write("unrecognized response\n")

   968     def status(self, *msg):

   969         if not self.quiet: self.write(*msg)

   970     def warn(self, msg):

   971         self.write(*msg)

   972     def note(self, *msg):

   973         if self.verbose: self.write(*msg)

   974     def debug(self, *msg):

   975         if self.debugflag: self.write(*msg)

   976     def edit(self, text):

   977         (fd, name) = tempfile.mkstemp("hg")

   978         f = os.fdopen(fd, "w")

   979         f.write(text)

   980         f.close()

   981 

   982         editor = os.environ.get("HGEDITOR") or os.environ.get("EDITOR", "vi")

   983         r = os.system("%s %s" % (editor, name))

   984 

   985         if r:

   986             raise "Edit failed!"

   987 

   988         t = open(name).read()

   989         t = re.sub("(?m)^HG:.*\n", "", t)

   990 

   991         return t

   992