Fixed bugs with /chelp

modules/commands/help.lua

@@ -10,50 +10,64 @@ Global.register(search_cache,function(tbl)
 end)
 
 Commands.new_command('chelp','Searches for a keyword in all commands you are allowed to use.')
-:add_param('keyword',false) -- the keyword that will be looked for
+:add_param('keyword',true) -- the keyword that will be looked for
 :add_param('page',true,'integer') -- the keyword that will be looked for
-:add_defaults{page=1}
+:add_defaults{keyword='',page=1}
 :register(function(player,keyword,page,raw)
+    -- if keyword is a number then treat it as page number
+    if tonumber(keyword) then
+        page = math.floor(tonumber(keyword))
+        keyword = ''
+    end
     -- gets a value for pages, might have result in cache
     local pages
+    local found = 0
     if search_cache[player.index] and search_cache[player.index].keyword == keyword:lower() then
         pages = search_cache[player.index].pages
+        found = search_cache[player.index].found
     else
         pages = {{}}
         local current_page = 1
         local page_count = 0
+        local commands = Commands.search(keyword,player)
         -- loops other all commands returned by search, includes game commands
-        for _,command_data in pairs(Commands.search(keyword,player)) do
+        for _,command_data in pairs(commands) do
             -- if the number of results if greater than the number already added then it moves onto a new page
-            if page_count > results_per_page then
+            if page_count >= results_per_page then
                 page_count = 0
                 current_page = current_page + 1
                 table.insert(pages,{})
             end
             -- adds the new command to the page
             page_count = page_count + 1
+            found = found + 1
+            local alias_format = #command_data.aliases > 0 and {'exp-commands.chelp-alias',table.concat(command_data.aliases,', ')} or ''
             table.insert(pages[current_page],{
                 'exp-commands.chelp-format',
                 command_data.name,
                 command_data.description,
                 command_data.help,
-                command_data.aliases:concat(', ')
+                alias_format
             })
         end
         -- adds the result to the cache
         search_cache[player.index] = {
             keyword=keyword:lower(),
-            pages=pages
+            pages=pages,
+            found=found
         }
     end
     -- print the requested page
-    Commands.print{'exp-commands.chelp-title',keyword,page,#pages}
+    keyword = keyword == '' and '<all>' or keyword
+    Commands.print({'exp-commands.chelp-title',keyword},'cyan')
     if pages[page] then
         for _,command in pairs(pages[page]) do
             Commands.print(command)
         end
+        Commands.print({'exp-commands.chelp-footer',found,page,#pages},'cyan')
     else
-        Commands.print{'exp-commands.chelp-out-of-range',page}
+        Commands.print({'exp-commands.chelp-footer',found,page,#pages},'cyan')
+        return Commands.error{'exp-commands.chelp-out-of-range',page}
     end
     -- blocks command complete message
     return Commands.success