Compiler tables and definitions: In the context of a language processor, what is a Terminal Table typically defined as?

Introduction / Context:Language translators use several auxiliary tables to manage symbols and grammar elements. Knowing the purpose of each—terminal, identifier, and literal tables—clarifies how compilers parse and analyze source code.

Given Data / Assumptions:

• “Terminals” are the basic symbols of the grammar: keywords, operators, and punctuation.
• Lexical analysis classifies input into tokens.
• Permanent tables differ from per-program symbol or literal tables.

Concept / Approach:The Terminal Table is a permanent catalog of the language’s terminal symbols—keywords and special symbols—typically fixed for a language definition. In contrast, a Literal Table stores constants encountered in a program, and an Identifier Table lists user-defined names. Parsing tables (decision tables) are separate automaton artifacts used during syntax analysis.

Step-by-Step Solution:

Verification / Alternative check:Compiler design texts separate terminal/identifier/literal tables clearly; lexer uses the terminal table to recognize keywords and operators.

Why Other Options Are Wrong:Constants only: describes a literal table. Decision rules/patterns: describes parsing tables, not terminals. Token list as they appear: describes a token stream or symbol table for a specific program.

Common Pitfalls:Confusing the general language dictionary (terminals) with a program’s symbol inventory (identifiers and literals).

Final Answer:a permanent table which lists all key words and special symbols of the language in symbolic form.