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Posted inCompiler Design
Syntax Analysis
Syntax analysis or parsing is the second phase of a compiler. In this chapter, we…
Posted inCompiler Design
Minimization of DFA
DFA minimization stands for converting a given DFA to its equivalent DFA with minimum number…
Posted inCompiler Design
Regular Expressions
The lexical analyzer needs to scan and identify only a finite set of valid string/token/lexeme…
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Finite Automata
Finite automata is a state machine that takes a string of symbols as input and…
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RECOGNITION OF TOKENS
Consider the following grammar fragment: stmt → if expr then stmt | if expr then…
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SPECIFICATION OF TOKENS
There are 3 specifications of tokens: 1)Strings 2) Language 3)Regular expression Strings and Languages · An alphabet or character…
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Tokens
Lexemes are said to be a sequence of characters (alphanumeric) in a token. There are…
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Input Buffering in Compiler Design
The lexical analyzer scans the input from left to right one character at a time.…
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Roles of the Lexical analyzer
Lexical analyzer performs below given tasks: Helps to identify token into the symbol table Removes…
Posted inCompiler Design
Architecture
A compiler can broadly be divided into two phases based on the way they compile.…