prosody
ad842df925c7
util/multitable.lua

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util/multitable.lua @ 840:ad842df925c7

util.multitable: Add mt:search(), use nil for wildcard keys
author Matthew Wild <mwild1@gmail.com>
date Thu, 26 Feb 2009 16:55:46 +0000
parent 760:90ce865eebd8
child 896:2c0b9e3c11c3
comparison
equal deleted inserted replaced
839:c45b5072f773 840:ad842df925c7
80 end 80 end
81 r(self.data, 1, _end, ...); 81 r(self.data, 1, _end, ...);
82 end 82 end
83 83
84 84
85 local function s(t, n, results, _end, ...)
86 if t == nil then return; end
87 local k = select(n, ...);
88 if n == _end then
89 if k == nil then
90 for _, v in pairs(t) do
91 t_insert(results, v);
92 end
93 else
94 t_insert(results, t[k]);
95 end
96 return;
97 end
98 if k then
99 v = t[k];
100 if v then
101 s(v, n+1, results, _end, ...);
102 end
103 else
104 for _,b in pairs(t) do
105 s(b, n+1, results, _end, ...);
106 end
107 end
108 end
109
110 -- Search for keys, nil == wildcard
111 local function search(self, ...)
112 local _end = select('#', ...);
113 for n = _end,1 do
114 if select(n, ...) then _end = n; break; end
115 end
116 local results = {};
117 s(self.data, 1, results, _end, ...);
118 return results;
119 end
120
121 -- Append results to an existing list
122 local function search_add(self, results, ...)
123 if not results then results = {}; end
124 local _end = select('#', ...);
125 for n = _end,1 do
126 if select(n, ...) then _end = n; break; end
127 end
128 s(self.data, 1, results, _end, ...);
129 return results;
130 end
131
85 function new() 132 function new()
86 return { 133 return {
87 data = {}; 134 data = {};
88 get = get; 135 get = get;
89 add = add; 136 add = add;
90 set = set; 137 set = set;
91 remove = remove; 138 remove = remove;
139 search = search;
140 search_add = search_add;
92 }; 141 };
93 end 142 end
94 143
95 return _M; 144 return _M;