prosody
f6f1dec164b5
util/iterators.lua
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util/iterators.lua @ 9327:f6f1dec164b5
util.iterators: Add sorted_pairs() method
| author | Matthew Wild <mwild1@gmail.com> |
|---|---|
| date | Fri, 21 Sep 2018 14:27:46 +0100 |
| parent | 8797:7b621a4a2e8d |
| child | 9688:eade1316728e |
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| 9326:c9c4b8bc53b1 | 9327:f6f1dec164b5 |
|---|---|
| 175 t_insert(t, var); | 175 t_insert(t, var); |
| 176 end | 176 end |
| 177 return t; | 177 return t; |
| 178 end | 178 end |
| 179 | 179 |
| 180 function it.sorted_pairs(t, sort_func) | |
| 181 local keys = it.to_array(it.keys(t)); | |
| 182 table.sort(keys, sort_func); | |
| 183 local i = 0; | |
| 184 return function () | |
| 185 i = i + 1; | |
| 186 local key = keys[i]; | |
| 187 if key ~= nil then | |
| 188 return key, t[key]; | |
| 189 end | |
| 190 end; | |
| 191 end | |
| 192 | |
| 180 -- Treat the return of an iterator as key,value pairs, | 193 -- Treat the return of an iterator as key,value pairs, |
| 181 -- and build a table | 194 -- and build a table |
| 182 function it.to_table(f, s, var) | 195 function it.to_table(f, s, var) |
| 183 local t, var2 = {}; | 196 local t, var2 = {}; |
| 184 while true do | 197 while true do |
