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#! /usr/bin/env python
# python-cdb 0.32 "Example"
import cdb
print cdb.__version__
## cdbmake object
fn = "f.cdb"
maker = cdb.cdbmake(fn, fn + ".tmp");
maker.add('flim', 'flam') # +4,4:flim->flam
maker.add('map', 'hash') # +3,4:map->hash
maker.add('spam', 'eggs') # +4,4:spam->eggs
maker.add('map', 'dictionary') # +3,10:map->dictionary
maker.add('map', 'assoc. array') # +3,12:map->assoc. array
print "Added %d records to CDB %s (fd %d)" % \
(maker.numentries, maker.fn, maker.fd)
maker.finish()
del(maker)
## cdb object
c = cdb.init(fn) # or init( file_obj.fileno() )
print len(c) # 5
print c['flim'] # 'flam'
print c.get('spam') # 'eggs'
print c.get('map', 0) # 'hash' -- a la cdbget utility
print c.get('map', 1) # 'dictionary'
r = c.get('map') # will print:
while r is not None: # 'hash'
print r # 'dictionary'
r = c.getnext() # 'assoc. array'
print c.keys() # ['flim', 'map', 'spam']
for k in c.keys(): # flim => ['flam']
print k, '=>', c.getall(k) # map => ['hash', 'dictionary', 'assoc. array']
# spam => ['eggs']
k = c.firstkey() # same as above
while k is not None:
print k, "=>", c.getall(k)
k = c.nextkey()
def cdbdump(cdb_o): # as the cdbdump utility
r = cdb_o.each() # r = ('key', 'val') or None
while r:
print "+%d,%d:%s->%s" % (
len(r[0]), len(r[1]),
r[0], r[1] )
r = cdb_o.each()
print
cdbdump(c)
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