Editing WoW:AchievementString (section)

== Format ==
Item strings consist of the string "achievement:" followed by 10 colon delimited portions, which describe the achievement, its status of completion (completed  criteria) and the character whose status of completion is related to.

 achievement:achievementId:characterId:finished:month:day:year:criteria1:criteria2:criteria3:criteria4

; achievementID : Achievement ID that can be used for [[API GetAchievementLink|GetAchievementLink]] calls.
; characterId: Character ID whose the achievement is related to.
; finished : Status of this achievement. "1" means finished, and vice versa.
; month : Month this was finished.
; day : Day this was finished.
; year : Year this was finished, starts from 2000.
; criteria1, criteria2, criteria3, criteria4 : Bitset list representing which criteria are finished.

=== Character Ids ===
The character ID corresponds to the character's GUID but it doesn't include the first 2 characters. One might determine whether the given ID is that of the player like so:
 local PlayerGUID = strsub([[API UnitGUID|UnitGUID]]("player"), 3)
 local _, id, GUID = strsplit(":", achievementLink);
 if (PlayerGUID == GUID) then
   -- Do something only with the player's own achievement links
 end