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Using Yacc and Lex to generate parse tree

I've spent 6 hours writing a compiler for the productions below with Lex and Yacc. The terminal report warning: empty rule for typed nonterminal, and no action

How can I call a return value from ScriptA.cs in ScriptB.cs?

So I have a button that has to be pushed and when the button is pushed the light is turned on. Can I take a return Boolean value from a function in ScriptA.cs a

Prevent jaws from reading "password" twice in password-type input fields

I have a password field that is reading out "password : password" by JAWS screen reader. I want to change that so it only reads out "password" once. I tried var

Duplicated data in python 3

In my database the duplicates of data showing up. But this is not what i want. I want off every datatype 1 and not 2. this is my code: for dim_cinema in process

How to perform search operation from Navbar when data is recieved from global Context API

I am executing search operation from Navbar component for the data that is present in separate Context API, and the results for the search operation will be pre

React Helmet work perfectly on localhost but on cpanel rener null for the meta tags

So i tried use react helmet like this in my component : <Helmet> <title>EXAMPLE</title> <meta name="description" content="EXAMPLE" /> &

Check two consecutives parameters in prolog

I need to write a predicate in Prolog that given a list that return false if there are 2 consecutive '/', otherwise it returns true. This is what I've done so f