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1.3

Translation Process Compiler Construction Principles Practice Kenneth Louden

QuestionAnswer
key terms phases
what does a compiler consist of internally a number of steps (phases) that perform distinct logical operations
how are the phases of a compiler coded may be written as separately coded operations although in practice they are often grouped together
phases of a compiler scanner, parser, semantic analyzer, source code optimizer, code generator, target code optimizer,
auxiliary components that interact with some or all of the phases of a compiler literal table, symbol table, error handler
what does the scanner phase of a compiler do this phase of the compiler does the actual reading of the source program
what is the source program usually in the form of a stream of characters
what does the scanner perform lexical analysis
what is lexical analysis scanner collects sequences of characters into meaningful units called tokens
what are tokens like the words of a natural language
what does each token consist of one or more characters that are collected into a unit before further processing takes place
what other functions can a scanner perform along with the recognition of tokens may enter identifiers into the symbol table, and it may enter literals into the literal table
what is a literal include numeric constants such as 3.14... and quoted strings of text such as "Hello, World!"
what does the parser recieve the source code in the form of tokens from the scanner
what does the parser perform syntax analysis
what is syntax analysis determines the structure of the program
Created by: ToriOverholtzer
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