Fix Buy Similar searches for punctuated unique names

spec/System/TestCompareBuySimilar_spec.lua

@@ -154,6 +154,13 @@ Implicits: 1
 			return dkjson.decode(queryJson)
 		end
 
+		local function getUniqueQuery(name, baseName)
+			local item = new("Item", "Rarity: UNIQUE\n" .. name .. "\n" .. baseName .. "\nImplicits: 0")
+			local query = getQuery(openPopup(item, "Jewel"))
+			main:ClosePopup()
+			return query
+		end
+
 		it("rebuilds the URL when league and listed status change", function()
 			local controls = openPopup()
 			getQuery(controls)
@@ -171,6 +178,25 @@ Implicits: 1
 			assert.equal("any", query.query.status.option)
 		end)
 
+		it("preserves apostrophes in unique names", function()
+			local item = new("Item", [[
+Rarity: UNIQUE
+Ralakesh's Impatience
+Riveted Boots
+Implicits: 0]])
+			local controls = openPopup(item, "Boots")
+
+			assert.equal("Ralakesh's Impatience", getQuery(controls).query.name)
+		end)
+
+		it("removes a trailing unique ID without removing name punctuation", function()
+			assert.equal("Uul-Netol's Embrace", getUniqueQuery("Uul-Netol's Embrace 1234", "Vaal Axe").query.name)
+		end)
+
+		it("trims whitespace after a unique name", function()
+			assert.equal("The Hateful Accuser", getUniqueQuery("The Hateful Accuser ", "Ghastly Eye Jewel").query.name)
+		end)
+
 		it("persists league choices by name for each realm", function()
 			local controls = openPopup()
 			assert.equal("PC Event", controls.leagueDrop:GetSelValue())

src/Classes/CompareBuySimilar.lua

@@ -74,10 +74,10 @@ local function buildURL(item, slotName, controls, modEntries, defenceEntries, is
 		-- Search by unique name
 		-- Strip "Foulborn" prefix from unique name for trade search
 		local tradeName = (item.title or item.name):gsub("^Foulborn%s+", "")
-		-- only take the first letters and white space to avoid e.g. including
-		-- timeless jewel ids or other numbers the user might have on the item
-		local nameMatch = tradeName:match("(%a[%a%s]+).*")
-		tradeName = (nameMatch and nameMatch:gsub("%s+$", "")) or tradeName
+		-- only strip a trailing numeric identifier to avoid e.g. including
+		-- timeless jewel ids or other numbers appended to the item name.
+		tradeName = tradeName:gsub("%s+$", "")
+		tradeName = tradeName:match("^(.-)%s+%d+$") or tradeName
 		queryTable.query.name = tradeName
 		queryTable.query.type = item.baseName
 		-- If item is Foulborn, add the foulborn_item filter