prosody
9a695724681d
util/multitable.lua

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util/multitable.lua @ 554:9a695724681d

MultiTable: Remove all empty sub-tables when elements are removed
author Waqas Hussain <waqas20@gmail.com>
date Fri, 05 Dec 2008 05:24:10 +0500
parent 552:6db1f41e475a
child 568:b2464849c1b0
comparison
equal deleted inserted replaced
552:6db1f41e475a 554:9a695724681d
20 20
21 21
22 local select = select; 22 local select = select;
23 local t_insert = table.insert; 23 local t_insert = table.insert;
24 local pairs = pairs; 24 local pairs = pairs;
25 local next = next;
25 26
26 module "multitable" 27 module "multitable"
27 28
28 local function get(self, ...) 29 local function get(self, ...)
29 local t = self.data; 30 local t = self.data;
53 t[key] = nil; 54 t[key] = nil;
54 end 55 end
55 end 56 end
56 local k = select(n, ...); 57 local k = select(n, ...);
57 if k then 58 if k then
58 r(t[k], n+1, _end, ...); 59 v = t[k];
60 if v then
61 r(v, n+1, _end, ...);
62 if not next(v) then
63 t[k] = nil;
64 end
65 end
59 else 66 else
60 for _,b in pairs(t) do 67 for _,b in pairs(t) do
61 r(b, n+1, _end, ...); 68 r(b, n+1, _end, ...);
69 if not next(b) then
70 t[_] = nil;
71 end
62 end 72 end
63 end 73 end
64 end 74 end
65 75
66 local function remove(self, ...) 76 local function remove(self, ...)