From 8ca3fae3589e73c90377eefabd01d9a2c89c3d10 Mon Sep 17 00:00:00 2001
From: Wuzzy <almikes@aol.com>
Date: Wed, 10 Aug 2016 07:47:39 +0200
Subject: Function: add_suppressed_item_entries

---
 API.md   |  9 +++++++++
 init.lua | 16 ++++++++++++----
 2 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/API.md b/API.md
index 10b1037..a1a7bdf 100644
--- a/API.md
+++ b/API.md
@@ -298,6 +298,15 @@ the item is not in creative inventory.
 to the group `in_doc=1` (see above). Only use this function when you can
 not use groups.
 
+### `doc.sub.items.add_suppressed_item_entries(itemstrings)`
+Adds items which will be forced to **not** be added to the entry list.
+
+`itemstrings` is a table of itemstrings of items to force the entries for.
+
+***Note***: The recommended way to suppress item entries is by adding the
+item to the group `not_in_doc=1` (see above). Only use this function when you
+can not use groups.
+
 ### `doc.sub.items.add_item_name_overrides(itemstrings)`
 Overrides the entry names of entries to the provided names. By default,
 each entry name equals the item's `description` field.
diff --git a/init.lua b/init.lua
index 69d87bd..b6124fa 100644
--- a/init.lua
+++ b/init.lua
@@ -13,6 +13,7 @@ doc.sub.items.temp.eat_bad = "Hold it in your hand, then leftclick to eat it. Bu
 local groupdefs = {}
 local mininggroups = {}
 local miscgroups = {}
+-- List of forcefully added (true) and hidden (false) items
 local forced_items = {
 	["air"] = true,
 }
@@ -710,7 +711,7 @@ function doc.sub.items.add_notable_groups(groupnames)
 	end
 end
 
--- Add item which will be forced to be added to the item list,
+-- Add items which will be forced to be added to the item list,
 -- even if the item is not in creative inventory
 function doc.sub.items.add_forced_item_entries(itemstrings)
 	for i=1,#itemstrings do
@@ -718,6 +719,13 @@ function doc.sub.items.add_forced_item_entries(itemstrings)
 	end
 end
 
+-- Add items which will be forced *not* to be added to the item list
+function doc.sub.items.add_suppressed_item_entries(itemstrings)
+	for i=1,#itemstrings do
+		forced_items[itemstrings[i]] = false
+	end
+end
+
 -- Register a list of entry names where the entry name should differ
 -- from the original item description
 function doc.sub.items.add_item_name_overrides(itemstrings)
@@ -748,7 +756,7 @@ local function gather_descs()
 		else
 			name = def.description
 		end
-		if not (name == nil or name == "" or def.groups.not_in_creative_inventory or def.groups.not_in_doc) or forced then
+		if not (name == nil or name == "" or def.groups.not_in_creative_inventory or def.groups.not_in_doc or forced_items[id] == false) or forced then
 			if help.longdesc[id] ~= nil then
 				ld = help.longdesc[id]
 			end
@@ -793,7 +801,7 @@ local function gather_descs()
 		else
 			name = def.description
 		end
-		if not (name == nil or name == "" or def.groups.not_in_creative_inventory or def.groups.not_in_doc) or forced then
+		if not (name == nil or name == "" or def.groups.not_in_creative_inventory or def.groups.not_in_doc or forced_items[id] == false) or forced then
 			if help.longdesc[id] ~= nil then
 				ld = help.longdesc[id]
 			end
@@ -824,7 +832,7 @@ local function gather_descs()
 		else
 			name = def.description
 		end
-		if not (name == nil or name == "" or def.groups.not_in_creative_inventory or def.groups.not_in_doc) or forced then
+		if not (name == nil or name == "" or def.groups.not_in_creative_inventory or def.groups.not_in_doc or forced_items[id] == false) or forced then
 			if help.longdesc[id] ~= nil then
 				ld = help.longdesc[id]
 			end
-- 
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