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Recognition of tokens: We learn how to express pattern using regular e... -
Recognizing keywords and identifiers presents a problem. Usually, keywords like if or then are reserved, so they are not identifiers ... -
Token: Token is a sequence of characters that can be treated as a single logical entity. Typical tokens are, ...
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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... -
Semantic analysis checks the source program for somatic errors. It uses the hierarchical structure... -
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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Code generation converts the intermediate code into the target code consisting of sequenced machine code or assembly codec that perfo...
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We may wish to give to regular expression and to define regular expression using these names as if they were symbols. ...
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As translation progress the compiler's internal representation of source program change ...
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Assembler: programmers found it difficult to write or read programs in machine language. They begin to use a mnemonic (symbols) for each ...
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