diff options
Diffstat (limited to 'script/utility.lua')
| -rw-r--r-- | script/utility.lua | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/script/utility.lua b/script/utility.lua index a1ea1804..2b9c7d2f 100644 --- a/script/utility.lua +++ b/script/utility.lua @@ -29,6 +29,9 @@ local function formatNumber(n) or n ~= n then -- IEEE 标准中，NAN 不等于自己。但是某些实现中没有遵守这个规则 return ('%q'):format(n) end + if mathType(n) == 'integer' then + return tostring(n) + end local str = ('%.10f'):format(n) str = str:gsub('%.?0*$', '') return str @@ -556,4 +559,31 @@ function m.eachLine(text) end end +function m.sortByScore(tbl, callbacks) + if type(callbacks) ~= 'table' then + callbacks = { callbacks } + end + local size = #callbacks + local scoreCache = {} + for i = 1, size do + scoreCache[i] = {} + end + tableSort(tbl, function (a, b) + for i = 1, size do + local callback = callbacks[i] + local cache = scoreCache[i] + local sa = cache[a] or callback(a) + local sb = cache[b] or callback(b) + cache[a] = sa + cache[b] = sb + if sa > sb then + return true + elseif sa < sb then + return false + end + end + return false + end) +end + return m |