def preprocess(self, code, usemagic, printwidth=80):
    ''
    magic_lines = []
    code_lines = []
    for line in code.splitlines():
        trimmed = line.lstrip()
        if (not trimmed):
            continue
        elif (usemagic and trimmed.startswith('--%')):
            (key, val, msg) = self.conf.read(trimmed[3:])
            cmd = ''
            if (key == 'timeout'):
                self.proc.timeout = val
            elif (key == 'mode'):
                if (val == 'original'):
                    self.debug = True
                else:
                    self.debug = False
                if (val == 'texmacs'):
                    cmd = 'mode(true);'
                else:
                    cmd = 'mode(false);'
            magic_lines.append((cmd + ' << "{}";--CMD'.format(msg)))
        elif trimmed.startswith('--'):
            continue
        else:
            code_lines.append((line + '--CMD'))
    if (magic_lines or code_lines):
        return 'noop(begin)--CMD\n{}\nnoop(end)--CMD--EOB'.format('\n'.join((magic_lines + code_lines)))
    return ''
def preprocess(self, code, usemagic, printwidth=80):
    
    magic_lines = []
    code_lines = []
    for line in code.splitlines():
        trimmed = line.lstrip()
        if (not trimmed):
            continue
        elif (usemagic and trimmed.startswith('--%')):
            (key, val, msg) = self.conf.read(trimmed[3:])
            cmd = 
            if (key == 'timeout'):
                self.proc.timeout = val
            elif (key == 'mode'):
                if (val == 'original'):
                    self.debug = True
                else:
                    self.debug = False
                if (val == 'texmacs'):
                    cmd = 'mode(true);'
                else:
                    cmd = 'mode(false);'
            magic_lines.append((cmd + ' << "{}";--CMD'.format(msg)))
        elif trimmed.startswith('--'):
            continue
        else:
            code_lines.append((line + '--CMD'))
    if (magic_lines or code_lines):
        return 'noop(begin)--CMD\n{}\nnoop(end)--CMD--EOB'.format('\n'.join((magic_lines + code_lines)))
    return 