Language Processors
The macro processor must perform

recognize macro definitions and macro calls
save the macro definitions
All of these
expand macro calls and substitute arguments

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Language Processors
Assembly code data base is associated with

consists of a full or partial list or the tokens as they appear in the program. Created by Lexical analysis and used for syntax analysis and interpretation
a permanent table which lists all key words and special symbols of the language in symbolic form
assembly language version of the program which is created by the code generation phase and is input to the assembly phase
a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure

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Language Processors
In analyzing the compilation of PL/I program, the term "Machine independent optimization" is associated with

use of macro processor to produce more optimal assembly code
creation of more optional matrix
recognition of basic syntactic constructs through reductions
recognition of basic elements and creation of uniform symbols

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Language Processors
Indicate which of the following is not true about 4GL?

4GL does not support a high-level of screen interaction
A 4GL is a software tool which is written, possibly, in some third generation language
Many database management system packages support 4GLs
All of these

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