prosody
379faad8ce9f
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 @ 6342:379faad8ce9f

Merge 0.10->trunk
author Kim Alvefur <zash@zash.se>
date Sat, 09 Aug 2014 21:48:52 +0200
parent 5776:bd0ff8ae98a8
child 6777:5de6b93d0190
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1523
841d61be198f Remove version number from copyright headers
Matthew Wild <mwild1@gmail.com>
parents: 1104
diff changeset
1 -- Prosody IM
2923
b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents: 1523
diff changeset
2 -- Copyright (C) 2008-2010 Matthew Wild
b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents: 1523
diff changeset
3 -- Copyright (C) 2008-2010 Waqas Hussain
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 4901
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 local select = select;
4895
36df30395c44 util.multitable: No longer use table.remove to drop elements from the stack, when key is nil immediately (on empty tables) the previous stack entry's key gets removed instead
Matthew Wild <mwild1@gmail.com>
parents: 4894
diff changeset
10 local t_insert = table.insert;
4894
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
11 local unpack, pairs, next, type = unpack, pairs, next, type;
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
12
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
13 module "multitable"
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
14
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
15 local function get(self, ...)
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
16 local t = self.data;
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
17 for n = 1,select('#', ...) do
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
18 t = t[select(n, ...)];
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
19 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
20 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
21 return t;
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
22 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
23
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
24 local function add(self, ...)
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
25 local t = self.data;
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
26 local count = select('#', ...);
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
27 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
28 local key = select(n, ...);
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
29 local tab = t[key];
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
30 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
31 t = tab;
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
32 end
568
b2464849c1b0 Small fix for multitable
Matthew Wild <mwild1@gmail.com>
parents: 554
diff changeset
33 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
34 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
35
650
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
36 local function set(self, ...)
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
37 local t = self.data;
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
38 local count = select('#', ...);
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
39 for n = 1,count-2 do
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
40 local key = select(n, ...);
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
41 local tab = t[key];
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
42 if not tab then tab = {}; t[key] = tab; end
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
43 t = tab;
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
44 end
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
45 t[(select(count-1, ...))] = (select(count, ...));
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
46 end
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
47
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
48 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
49 if t == nil then return; end
650
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
50 local k = select(n, ...);
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
51 if n == _end then
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
52 t[k] = nil;
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
53 return;
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
54 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
55 if k then
1104
e9c1650054c4 util.multitable: No globals today, thank you. Fixes missing table entries and a potential traceback
Matthew Wild <mwild1@gmail.com>
parents: 896
diff changeset
56 local v = t[k];
554
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
57 if v then
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
58 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
59 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
60 t[k] = nil;
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
61 end
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
62 end
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
63 else
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
64 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
65 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
66 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
67 t[_] = nil;
9a695724681d MultiTable: Remove all empty sub-tables when elements are removed
Waqas Hussain <waqas20@gmail.com>
parents: 552
diff changeset
68 end
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
69 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
70 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
71 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
72
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
73 local function remove(self, ...)
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
74 local _end = select('#', ...);
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
75 for n = _end,1 do
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
76 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
77 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
78 r(self.data, 1, _end, ...);
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
79 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
80
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
81
840
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
82 local function s(t, n, results, _end, ...)
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
83 if t == nil then return; end
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
84 local k = select(n, ...);
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
85 if n == _end then
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
86 if k == nil then
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
87 for _, v in pairs(t) do
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
88 t_insert(results, v);
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
89 end
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
90 else
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
91 t_insert(results, t[k]);
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
92 end
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
93 return;
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
94 end
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
95 if k then
1104
e9c1650054c4 util.multitable: No globals today, thank you. Fixes missing table entries and a potential traceback
Matthew Wild <mwild1@gmail.com>
parents: 896
diff changeset
96 local v = t[k];
840
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
97 if v then
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
98 s(v, n+1, results, _end, ...);
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
99 end
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
100 else
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
101 for _,b in pairs(t) do
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
102 s(b, n+1, results, _end, ...);
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
103 end
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
104 end
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
105 end
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
106
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
107 -- Search for keys, nil == wildcard
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
108 local function search(self, ...)
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
109 local _end = select('#', ...);
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
110 for n = _end,1 do
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
111 if select(n, ...) then _end = n; break; end
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
112 end
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
113 local results = {};
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
114 s(self.data, 1, results, _end, ...);
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
115 return results;
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
116 end
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
117
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
118 -- Append results to an existing list
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
119 local function search_add(self, results, ...)
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
120 if not results then results = {}; end
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
121 local _end = select('#', ...);
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
122 for n = _end,1 do
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
123 if select(n, ...) then _end = n; break; end
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
124 end
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
125 s(self.data, 1, results, _end, ...);
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
126 return results;
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
127 end
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
128
4894
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
129 function iter(self, ...)
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
130 local query = { ... };
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
131 local maxdepth = select("#", ...);
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
132 local stack = { self.data };
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
133 local keys = { };
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
134 local function it(self)
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
135 local depth = #stack;
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
136 local key = next(stack[depth], keys[depth]);
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
137 if key == nil then -- Go up the stack
4895
36df30395c44 util.multitable: No longer use table.remove to drop elements from the stack, when key is nil immediately (on empty tables) the previous stack entry's key gets removed instead
Matthew Wild <mwild1@gmail.com>
parents: 4894
diff changeset
138 stack[depth], keys[depth] = nil, nil;
4894
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
139 if depth > 1 then
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
140 return it(self);
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
141 end
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
142 return; -- The end
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
143 else
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
144 keys[depth] = key;
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
145 end
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
146 local value = stack[depth][key];
4901
05ea6c1ae393 util.multitable: Some fixes for iter()... always match against query, and pass value after path results
Matthew Wild <mwild1@gmail.com>
parents: 4895
diff changeset
147 if query[depth] == nil or key == query[depth] then
05ea6c1ae393 util.multitable: Some fixes for iter()... always match against query, and pass value after path results
Matthew Wild <mwild1@gmail.com>
parents: 4895
diff changeset
148 if depth == maxdepth then -- Result
05ea6c1ae393 util.multitable: Some fixes for iter()... always match against query, and pass value after path results
Matthew Wild <mwild1@gmail.com>
parents: 4895
diff changeset
149 local result = {}; -- Collect keys forming path to result
05ea6c1ae393 util.multitable: Some fixes for iter()... always match against query, and pass value after path results
Matthew Wild <mwild1@gmail.com>
parents: 4895
diff changeset
150 for i = 1, depth do
05ea6c1ae393 util.multitable: Some fixes for iter()... always match against query, and pass value after path results
Matthew Wild <mwild1@gmail.com>
parents: 4895
diff changeset
151 result[i] = keys[i];
05ea6c1ae393 util.multitable: Some fixes for iter()... always match against query, and pass value after path results
Matthew Wild <mwild1@gmail.com>
parents: 4895
diff changeset
152 end
05ea6c1ae393 util.multitable: Some fixes for iter()... always match against query, and pass value after path results
Matthew Wild <mwild1@gmail.com>
parents: 4895
diff changeset
153 result[depth+1] = value;
05ea6c1ae393 util.multitable: Some fixes for iter()... always match against query, and pass value after path results
Matthew Wild <mwild1@gmail.com>
parents: 4895
diff changeset
154 return unpack(result, 1, depth+1);
05ea6c1ae393 util.multitable: Some fixes for iter()... always match against query, and pass value after path results
Matthew Wild <mwild1@gmail.com>
parents: 4895
diff changeset
155 elseif type(value) == "table" then
05ea6c1ae393 util.multitable: Some fixes for iter()... always match against query, and pass value after path results
Matthew Wild <mwild1@gmail.com>
parents: 4895
diff changeset
156 t_insert(stack, value); -- Descend
4894
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
157 end
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
158 end
4901
05ea6c1ae393 util.multitable: Some fixes for iter()... always match against query, and pass value after path results
Matthew Wild <mwild1@gmail.com>
parents: 4895
diff changeset
159 return it(self);
4894
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
160 end;
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
161 return it, self;
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
162 end
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
163
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
164 function new()
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
165 return {
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
166 data = {};
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
167 get = get;
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
168 add = add;
650
674531bcb5c4 Added util.multitable.set
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
169 set = set;
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
170 remove = remove;
840
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
171 search = search;
ad842df925c7 util.multitable: Add mt:search(), use nil for wildcard keys
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
172 search_add = search_add;
4894
c874dc4ccbd7 util.multitable: Add :iter() method to iterate over results at a fixed depth (parameters are equivalent to :search())
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
173 iter = iter;
552
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
174 };
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
175 end
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
176
6db1f41e475a util.multitable - A table with multiple key for each entry
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
177 return _M;