alternation('|'), zero or more ('*'), zero or one ('?') and one or more ('+'). Compiles the regex expression, loops through the string, if the label is equal to the character, add the state arrow to ...

Write a Python program that reads a given expression and evaluates it. Terms and conditions: The expression consists of numerical values, operators and parentheses, and the ends with '='. The ...

Regular expressions (which we will mostly call “regexes” from now on) are defined using a mini-language that is completely different from Python—but Python includes the re module through which we can ...