Add documentation to the help command.

Search query language remains the same except for the optional
duplicates key word.

findall.lua

@@ -46,6 +46,8 @@ for name, id in pairs(Containers) do sorted_container_names[id + 1] = {id = id,
 -- global_storages[server str][character_name str][inventory_name str][item_id num] = count num
 global_storages = {}
 item_names = {}
+-- items_by_id[id num][character_name str][inventory_name str] = count num
+items_by_id = {}
 
 function get_item_names_by_id(storage_name, id)
     if storage_name == KEY_ITEM_STORAGE_NAME then
@@ -170,6 +172,16 @@ function update_keyitem_storage(storage)
     storage[KEY_ITEM_STORAGE_NAME] = ki_storage
 end
 
+function update_item_index(itemId, count, player_name, container_name)
+    if items_by_id[itemId] == nil then
+        items_by_id[itemId] = {}
+    end
+    if items_by_id[itemId][player_name] == nil then
+        items_by_id[itemId][player_name] = {}
+    end
+    items_by_id[itemId][player_name][container_name] = count
+end
+
 
 function update_player_storages()
     local player_name = get_player_name()
@@ -200,6 +212,7 @@ function update_player_storages()
                         quantity = inv_entry.Count;
                     end
                     current_storage[inv_entry.Id] = (current_storage[inv_entry.Id] or 0) + quantity
+                    update_item_index(inv_entry.Id, current_storage[inv_entry.Id], player_name, container_name)
                 end
 
                 update_slip_storage(storages, inv_entry, item)
@@ -259,12 +272,14 @@ function print_help()
         { '    [!<character1> [!...]]',             '- the names of the characters to exclude from the search.' },
         { '    [<query>]',                          '- the word you are looking for.' },
         { '    [-e<filename>|--export=<filename>]', '- exports the results to a csv file in the data folder.' },
+        { '/findall duplicates',                    '- searches for items that exist in more than 1 container.' },
     }
     local examples = {
         { '/findall thaumas',              '- Search for "thaumas" on all your characters.' },
         { '/findall :alpha :beta thaumas', '- Search for "thaumas" on "alpha" and "beta" characters.' },
         { '/findall :omega',               '- Show all the items stored on "omega".' },
         { '/findall !alpha thaumas',       '- Search for "thaumas" on all your characters except "alpha".' },
+        { '/findall duplicates :alpha bolt',    '- Search for "bolts" that exist in more than 1 storage area on character "alpha".' },
     }
 
     print('\31\200[\31\05' .. _addon.name .. '\31\200]\30\01' .. ' Version ' .. _addon.version)
@@ -312,11 +327,14 @@ function determine_query_elements(searchparams)
     local char_exclude = {}
     local search_terms = {}
     local export = nil
+    local operation = search
 
-    for _, query_element in pairs(searchparams) do
+    for i, query_element in pairs(searchparams) do
         -- character specifiers must start with a '!' or a ':'
         local char_search = string.match(query_element, '^([:!]%a+)$')
-        if char_search then
+        if i == 1 and query_element == 'duplicates' then
+            operation = duplicates
+        elseif char_search then
             local char_name = string.gsub(string.lower(string.sub(char_search, 2)), "^%l", string.upper)
             if string.sub(char_search, 1, 1) == '!' then
                 table.insert(char_exclude, char_name)
@@ -341,7 +359,7 @@ function determine_query_elements(searchparams)
         end
     end
 
-    return char_include, char_exclude, table.concat(search_terms,' '), export
+    return operation, char_include, char_exclude, table.concat(search_terms,' '), export
 end
 
 
@@ -356,6 +374,45 @@ function build_search_pattern(terms)
     return terms_pattern
 end
 
+function duplicates(char_include, char_exclude, terms)
+    log('duplicates', 'Searching duplicates: ' .. terms)
+
+    local terms_pattern = build_search_pattern(terms)
+    local entries = {}
+    -- entry = {char_name, storage_name, quantity}
+
+    for item_id, instances in pairs(items_by_id) do
+        local names = get_item_names_by_id(Containers.Inventory, item_id)
+        if terms_pattern == ''
+            or string.find(names.name, terms_pattern)
+            or string.find(names.long_name, terms_pattern)
+        then
+            entries[item_id] = {}
+            for char_name, storages in pairs(instances) do
+                if (#char_include == 0 or table.hasvalue(char_include, char_name)) and
+                    not table.hasvalue(char_exclude, char_name) then
+                    for storage_name, quantity in pairs(storages) do
+                        table.insert(
+                            entries[item_id],
+                            {char_name = char_name, storage_name = storage_name, quantity = quantity})
+                    end    
+                end
+            end
+        end
+    end
+    local results = {}
+    -- results[char_name][storage_name][item_id] = quantity
+    for item_id, entry_list in pairs(entries) do
+        if #entry_list > 1 then
+            for _, entry in pairs(entry_list) do
+                results[entry.char_name] = results[entry.char_name] or {}
+                results[entry.char_name][entry.storage_name] = results[entry.char_name][entry.storage_name] or {}
+                results[entry.char_name][entry.storage_name][item_id] = entry.quantity
+            end
+        end
+    end
+    return results
+end
 
 function search(char_include, char_exclude, terms)
     local results       = {}
@@ -472,8 +529,8 @@ end
 
 
 function handle_command(args)
-    local char_include, char_exclude, terms, export = determine_query_elements(args)
+    local command, char_include, char_exclude, terms, export = determine_query_elements(args)
-    local result = search(char_include, char_exclude, terms)
+    local result = command(char_include, char_exclude, terms)
     local all_chars = #char_include == 0 and #char_exclude == 0
     display_search_results(result, all_chars, terms)
     if export ~=nil then