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Token: Token is a sequence of characters that can be treated as a single logical entity. Typical tokens are, ...
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A.A.Puntambekar Technical Publications, 01-Jan-2010 - Compilers (Computer programs) - 461 pages Overview of Compilation : Phases of comp...
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Recognizing keywords and identifiers presents a problem. Usually, keywords like if or then are reserved, so they are not identifiers ... -
There are two parsing techniques, these parsing techniques work on the following principle 1. The parser scans the input string from lef... -
Regular expressions are mathematical symbolism which describe the set of strings of specific language. It provides convenient and usefu...
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Recognition of tokens: We learn how to express pattern using regular e... -
There are three basic phases that are important in programming e.g. C- programming. The phases are Pre-processing, compiling and Linking, ...
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A preprocessor produce input to compilers. They may perform the following functions. 1. Macro processing: A preprocessor may allow a ...
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In this process of compilation the parser and lexical analyzer work together. That means, when parser required string of tokens it invok... -
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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