Description: A. PL/0 language to build a lexical sub-program GETSYM (function) of the keyword, operator, called the language inherent delimiter word, identifiers, constants known as user-defined words. This setting three full amount: SYM, ID, NUM. SYM: storing each word category for the intra-coded representation. ID: storing user-defined identifier value, ie the machine identifier string representation. NUM: storing user-defined number. GETSYM want to accomplish:
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GETSYM.ncb