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Recognition of tokens: We learn how to express pattern using regular e... -
Token: Token is a sequence of characters that can be treated as a single logical entity. Typical tokens are, ...
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FIRST: If α is any string of grammar symbols, the FIRST (α) be the set of terminals that begins strings derived from α. ...
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Recognizing keywords and identifiers presents a problem. Usually, keywords like if or then are reserved, so they are not identifiers ... -
Code generation converts the intermediate code into the target code consisting of sequenced machine code or assembly codec that perfo...
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Regular expressions are mathematical symbolism which describe the set of strings of specific language. It provides convenient and usefu...
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The main task is to read the input characters and produce as output sequence of tokens that the parser uses for syntax ... -
Semantic analysis checks the source program for somatic errors. It uses the hierarchical structure... -
Loader and Link-editor: Once the assembler procedures an object program, that program must be placed into memory and executed. The assem...
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There are two parsing techniques, these parsing techniques work on the following principle 1. The parser scans the input string from lef...
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