naive implementation of search highlight issue #75

unireader.lua

@@ -2462,6 +2462,56 @@ function UniReader:addAllCommands()
 			unireader:goto(unireader.pageno)
 		end
 	)
+	self.commands:add(KEY_DOT, nil, ".",
+		"search and highlight text",
+		function(unireader)
+			local search = InputBox:input(G_height - 100, 100,
+				"Search:")
+
+			if search == nil or string.len( search ) < 1 then
+				unireader:goto(unireader.pageno)
+				return nil
+			end
+
+			local t = self:getText(self.pageno)
+			if not t or #t == 0 then
+				showInfoMsgWithDelay("No text available for search", 2000, 1);
+				return nil
+			end
+
+			Debug("self:getText", self.pageno,t)
+
+			for i = 1, #t, 1 do
+				for j = 1, #t[i], 1 do
+					local e = t[i][j]
+					if e.word ~= nil then
+						if string.match( e.word, search ) then
+
+							if not self.highlight[self.pageno] then
+								self.highlight[self.pageno] = {}
+							end
+
+							local hl_item = {
+								text = e.word,
+								[1] = {
+									x0 = e.x0,
+									y0 = e.y0,
+									x1 = e.x1,
+									y1 = e.y1,
+								}
+							}
+
+							table.insert(self.highlight[self.pageno], hl_item)
+						end
+					end
+				end
+			end
+
+			Debug("self.highlight", self.highlight);
+
+			unireader:goto(unireader.pageno)
+		end
+	)
 	self.commands:add(KEY_P, MOD_SHIFT, "P",
 	"make screenshot",
 	function(unireader)