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api: return when no subject was given to strsplit

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shagu
2019-04-02 22:42:19 +02:00
parent 07d42861a8
commit 05349d475e
1 changed files with 1 additions and 0 deletions
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api/api.lua
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@@ -14,6 +14,7 @@ mod = math.mod or mod
-- 'subject' [string] String to split. -- 'subject' [string] String to split.
-- return: [list] a list of strings. -- return: [list] a list of strings.
function pfUI.api.strsplit(delimiter, subject) function pfUI.api.strsplit(delimiter, subject)
if not subject then return nil end
local delimiter, fields = delimiter or ":", {} local delimiter, fields = delimiter or ":", {}
local pattern = string.format("([^%s]+)", delimiter) local pattern = string.format("([^%s]+)", delimiter)
string.gsub(subject, pattern, function(c) fields[table.getn(fields)+1] = c end) string.gsub(subject, pattern, function(c) fields[table.getn(fields)+1] = c end)