disabled many plugins

plugins/brainfuck.py

@@ -1,89 +0,0 @@
-"""brainfuck interpreter adapted from (public domain) code at
-http://brainfuck.sourceforge.net/brain.py"""
-
-import re
-import random
-
-from util import hook
-
-
-BUFFER_SIZE = 5000
-MAX_STEPS = 1000000
-
-
-@hook.command('brainfuck')
-@hook.command
-def bf(inp):
-    """bf <prog> -- Executes <prog> as Brainfuck code."""
-
-    program = re.sub('[^][<>+-.,]', '', inp)
-
-    # create a dict of brackets pairs, for speed later on
-    brackets = {}
-    open_brackets = []
-    for pos in range(len(program)):
-        if program[pos] == '[':
-            open_brackets.append(pos)
-        elif program[pos] == ']':
-            if len(open_brackets) > 0:
-                brackets[pos] = open_brackets[-1]
-                brackets[open_brackets[-1]] = pos
-                open_brackets.pop()
-            else:
-                return 'unbalanced brackets'
-    if len(open_brackets) != 0:
-        return 'unbalanced brackets'
-
-    # now we can start interpreting
-    ip = 0        # instruction pointer
-    mp = 0        # memory pointer
-    steps = 0
-    memory = [0] * BUFFER_SIZE  # initial memory area
-    rightmost = 0
-    output = ""   # we'll save the output here
-
-    # the main program loop:
-    while ip < len(program):
-        c = program[ip]
-        if c == '+':
-            memory[mp] += 1 % 256
-        elif c == '-':
-            memory[mp] -= 1 % 256
-        elif c == '>':
-            mp += 1
-            if mp > rightmost:
-                rightmost = mp
-                if mp >= len(memory):
-                    # no restriction on memory growth!
-                    memory.extend([0] * BUFFER_SIZE)
-        elif c == '<':
-            mp -= 1 % len(memory)
-        elif c == '.':
-            output += chr(memory[mp])
-            if len(output) > 500:
-                break
-        elif c == ',':
-            memory[mp] = random.randint(1, 255)
-        elif c == '[':
-            if memory[mp] == 0:
-                ip = brackets[ip]
-        elif c == ']':
-            if memory[mp] != 0:
-                ip = brackets[ip]
-
-        ip += 1
-        steps += 1
-        if steps > MAX_STEPS:
-            if output == '':
-                output = '(no output)'
-            output += '[exceeded {} iterations]'.format(MAX_STEPS)
-            break
-
-    stripped_output = re.sub(r'[\x00-\x1F]', '', output)
-
-    if stripped_output == '':
-        if output != '':
-            return 'no printable output'
-        return 'no output'
-
-    return stripped_output[:430].decode('utf8', 'ignore')