prosody
e74045238ee3
util/multitable.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

util/multitable.lua @ 827:e74045238ee3

MUC: Throw an error if we try talking to ourselves
author Waqas Hussain <waqas20@gmail.com>
date Fri, 20 Feb 2009 00:51:33 +0500
parent 760:90ce865eebd8
child 840:ad842df925c7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
759
5cccfb5da6cb 0.2->0.3
Matthew Wild <mwild1@gmail.com>
parents: 758
diff changeset
1 -- Prosody IM v0.3
760
90ce865eebd8 Update copyright notices for 2009
Matthew Wild <mwild1@gmail.com>
parents: 759
diff changeset
2 -- Copyright (C) 2008-2009 Matthew Wild
90ce865eebd8 Update copyright notices for 2009
Matthew Wild <mwild1@gmail.com>
parents: 759
diff changeset
3 -- Copyright (C) 2008-2009 Waqas Hussain
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
4 --
758
b1885732e979 GPL->MIT!
Matthew Wild <mwild1@gmail.com>
parents: 650
diff changeset
5 -- This project is MIT/X11 licensed. Please see the
b1885732e979 GPL->MIT!
Matthew Wild <mwild1@gmail.com>
parents: 650
diff changeset
6 -- COPYING file in the source package for more information.
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
7 --
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
8
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
9
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
10
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
11 local select = select;
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
12 local t_insert = table.insert;
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
13 local pairs = pairs;
554
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
14 local next = next;
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
15
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
16 module "multitable"
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
17
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
18 local function get(self, ...)
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
19 local t = self.data;
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
20 for n = 1,select('#', ...) do
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
21 t = t[select(n, ...)];
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
22 if not t then break; end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
23 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
24 return t;
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
25 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
26
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
27 local function add(self, ...)
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
28 local t = self.data;
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
29 local count = select('#', ...);
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
30 for n = 1,count-1 do
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
31 local key = select(n, ...);
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
32 local tab = t[key];
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
33 if not tab then tab = {}; t[key] = tab; end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
34 t = tab;
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
35 end
568
b2464849c1b0 Small fix for multitable
Matthew Wild <mwild1@gmail.com>
parents: 554
diff changeset
36 t_insert(t, (select(count, ...)));
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
37 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
38
650
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
39 local function set(self, ...)
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
40 local t = self.data;
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
41 local count = select('#', ...);
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
42 for n = 1,count-2 do
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
43 local key = select(n, ...);
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
44 local tab = t[key];
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
45 if not tab then tab = {}; t[key] = tab; end
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
46 t = tab;
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
47 end
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
48 t[(select(count-1, ...))] = (select(count, ...));
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
49 end
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
50
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
51 local function r(t, n, _end, ...)
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
52 if t == nil then return; end
650
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
53 local k = select(n, ...);
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
54 if n == _end then
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
55 t[k] = nil;
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
56 return;
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
57 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
58 if k then
554
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
59 v = t[k];
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
60 if v then
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
61 r(v, n+1, _end, ...);
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
62 if not next(v) then
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
63 t[k] = nil;
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
64 end
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
65 end
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
66 else
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
67 for _,b in pairs(t) do
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
68 r(b, n+1, _end, ...);
554
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
69 if not next(b) then
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
70 t[_] = nil;
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
71 end
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
72 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
73 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
74 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
75
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
76 local function remove(self, ...)
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
77 local _end = select('#', ...);
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
78 for n = _end,1 do
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
79 if select(n, ...) then _end = n; break; end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
80 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
81 r(self.data, 1, _end, ...);
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
82 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
83
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
84
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
85 function new()
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
86 return {
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
87 data = {};
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
88 get = get;
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
89 add = add;
650
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
90 set = set;
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
91 remove = remove;
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
92 };
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
93 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
94
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
95 return _M;