h/plugins/remember.py

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"""
remember.py: written by Scaevolus 2010
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"""
from util import hook
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def db_init(db):
db.execute("create table if not exists memory(chan, word, data, nick,"
" primary key(chan, word))")
db.commit()
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def get_memory(db, chan, word):
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row = db.execute("select data from memory where chan=? and word=lower(?)",
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(chan, word)).fetchone()
if row:
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return row[0]
else:
return None
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@hook.command
@hook.command("r")
def remember(inp, nick='', chan='', db=None):
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".remember <word> [+]<data> -- maps word to data in the memory"
db_init(db)
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append = False
try:
head, tail = inp.split(None, 1)
except ValueError:
return remember.__doc__
data = get_memory(db, chan, head)
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if tail[0] == '+':
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append = True
# ignore + symbol
new = tail[1:]
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_head, _tail = data.split(None, 1)
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# data is stored with the input so ignore it when re-adding it
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import string
if len(tail) > 1 and tail[1] in (string.punctuation + ' '):
tail = _tail + new
else:
tail = _tail + ' ' + new
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db.execute("replace into memory(chan, word, data, nick) values"
" (?,lower(?),?,?)", (chan, head, head + ' ' + tail, nick))
db.commit()
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if data:
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if append:
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return "appending %s to %s" % (new, data.replace('"', "''"))
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else:
return 'forgetting "%s", remembering this instead.' % \
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data.replace('"', "''")
else:
return 'done.'
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@hook.command
@hook.command("f")
def forget(inp, chan='', db=None):
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".forget <word> -- forgets the mapping that word had"
db_init(db)
data = get_memory(db, chan, inp)
if not chan.startswith('#'):
return "I won't forget anything in private."
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if data:
db.execute("delete from memory where chan=? and word=lower(?)",
(chan, inp))
db.commit()
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return 'forgot `%s`' % data.replace('`', "'")
else:
return "I don't know about that."
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@hook.regex(r'^\? ?(.+)')
def question(inp, chan='', say=None, db=None):
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"?<word> -- shows what data is associated with word"
db_init(db)
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data = get_memory(db, chan, inp.group(1).strip())
if data:
say(data)