enhanced go.py with muliple input matching support

go.py

def go_matching_buffers(strinput):
    """Return a list with buffers matching user input."""
    global buffers_pos
    listbuf = []
    if len(strinput) == 0:
        buffers_pos = 0
    strinput = strinput.lower()
    infolist = weechat.infolist_get('buffer', '', '')
    while weechat.infolist_next(infolist):
        short_name = weechat.infolist_string(infolist, 'short_name')
        if go_option_enabled('short_name'):
            name = weechat.infolist_string(infolist, 'short_name')
        else:
            name = weechat.infolist_string(infolist, 'name')
        if name == 'weechat' \
                and go_option_enabled('use_core_instead_weechat') \
                and weechat.infolist_string(infolist, 'plugin_name') == 'core':
            name = 'core'
        number = weechat.infolist_integer(infolist, 'number')
        full_name = weechat.infolist_string(infolist, 'full_name')
        if not full_name:
            full_name = '%s.%s' % (
                weechat.infolist_string(infolist, 'plugin_name'),
                weechat.infolist_string(infolist, 'name'))
        pointer = weechat.infolist_pointer(infolist, 'pointer')

        matchers = strinput.split()
        matches = []
        matching = True
        for i in range(len(matchers)):
            matches.append(name.lower().find(matchers[i]))
            if matches[i] < 0 or (i > 0 and matches[i] < matches[i-1]):
               matching = False
               break

        if not matching and strinput[-1] == ' ':
            matching = name.lower().endswith(strinput.strip())
        if not matching and strinput.isdigit():
            matching = str(number).startswith(strinput)
        if len(strinput) == 0 or matching:
            listbuf.append({
                'number': number,
                'short_name': short_name,
                'name': name,
                'full_name': full_name,
                'pointer': pointer,
            })
    weechat.infolist_free(infolist)