Language Processors
The macro processor must perform

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

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Language Processors
The function(s) of the Storage Assignment is/are:

to assign storage to literals, and to ensure that the storage is allocated and appropriate locations are initialized
All of these
to assign storage to all temporary locations that are necessary for intermediate results
to assign storage to all variables referenced in the source program

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Language Processors
In analyzing the compilation of PL/I program, the term "Lexical analysis" is associated with

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

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