Sunday, June 10, 2012
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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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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 ... -
There are two parsing techniques, these parsing techniques work on the following principle 1. The parser scans the input string from lef... -
The main task is to read the input characters and produce as output sequence of tokens that the parser uses for syntax ... -
There are several reasons for separating the analysis phase of compiling in to lexical and parsing. 1. Simpler design ...
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Interpreter: An interpreter is a program that appears to execute a source program as if it were machine language. Languages such as ... -
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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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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#include<stdio.h> #include<ctype.h> #include<stdlib.h> #include<string.h> #define SIZE 128 #define NONE -1 #...
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