"""Miscellaneous objects for the MUFF Engine"""
-# Copyright (c) 2005 mudpy, Jeremy Stanley <fungi@yuggoth.org>
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# - Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-# - Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following
-# disclaimer in the documentation and/or other materials provided
-# with the distribution.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-
-import string
+# Copyright (c) 2005 mudpy, Jeremy Stanley <fungi@yuggoth.org>, all rights reserved.
+# Licensed per terms in the LICENSE file distributed with this software.
+# hack to load all modules in the muff package
import muff
for module in muff.__all__:
exec("import " + module)
def broadcast(output):
+ """Send a message to all connected users."""
for each_user in muffvars.userlist:
each_user.send(output)
def wrap_ansi_text(text, width):
- relative_position = 0
+ """Wrap text with arbitrary width while ignoring ANSI colors."""
+
+ # the current position in the entire text string, including all
+ # characters, printable or otherwise
absolute_position = 0
- escape = 0
+
+ # the current text position relative to the begining of the line,
+ # ignoring color escape sequences
+ relative_position = 0
+
+ # whether the current character is part of a color escape sequence
+ escape = False
+
+ # iterate over each character from the begining of the text
for each_character in text:
+
+ # the current character is the escape character
if each_character == chr(27):
- escape = 1
+ escape = True
+
+ # the current character is within an escape sequence
elif escape:
+
+ # the current character is m, which terminates the
+ # current escape sequence
if each_character == "m":
- escape = 0
+ escape = False
+
+ # the current character is a newline, so reset the relative
+ # position (start a new line)
elif each_character == "\n":
relative_position = 0
+
+ # the current character meets the requested maximum line width,
+ # so we need to backtrack and find a space at which to wrap
elif relative_position == width:
+
+ # distance of the current character examined from the
+ # relative position
wrap_offset = 0
+
+ # count backwards until we find a space
while text[absolute_position - wrap_offset] != " ":
wrap_offset += 1
+
+ # insert an eol in place of the space
text = text[:absolute_position - wrap_offset] + "\r\n" + text[absolute_position - wrap_offset + 1:]
+
+ # increase the absolute position because an eol is two
+ # characters but the space it replaced was only one
absolute_position += 1
+
+ # now we're at the begining of a new line, plus the
+ # number of characters wrapped from the previous line
relative_position = wrap_offset
+
+ # as long as the character is not a carriage return and the
+ # other above conditions haven't been met, count it as a
+ # printable character
elif each_character != "\r":
relative_position += 1
+
+ # increase the absolute position for every character
absolute_position += 1
+
+ # return the newly-wrapped text
return text
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