lexical-analysis

How can i ignore comments in a string based on compiler design? Question: I want to ignore every comment like { comments } and // comments. I have a pointer named peek that checks my string character by character. I know how to ignore newlines, tabs, and spaces but I don’t know how to ignore …

Python regular expressions – how to capture multiple groups from a wildcard expression? Question: I have a Python regular expression that contains a group which can occur zero or many times – but when I retrieve the list of groups afterwards, only the last one is present. Example: re.search(“(w)*”, “abcdefg”).groups() this returns the list (‘g’,) …