As we encounter identifiers in a program, we need to determine if the identifier is accessible at that point in the program This is called scope checking One additional issue in semantic analysis is dealing with scopes A scope is a section of program text enclosed by basic program delimiters, e.g,() in C, or begin-end in Pascal. Many languages allow nested scopes that are scopes defined within other scopes. The scope defined by the innermost such unit is called the current scope. The scope defined by the current scope and by any enclosing brogram units are known as open scopes. any pi other scope is a closed scopeAs we encounter identifiers in a program, we need to determine if the identifier is accessible at that point in the program. This is called scope checking One additional issue in semantic analysis is dealing with scopes. . A scope is a section of program text enclosed by basic program delimiters, e.g., {} in C, or begin-end in Pascal. Many languages allow nested scopes that are scopes defined within other scopes. The scope defined by the innermost such unit is called the current scope. The scope defined by the current scope and by any enclosing program units are known as open scopes. Any other scope is a closed scope