RECOGNITION OF TOKENS
Posted inCompiler Design

RECOGNITION OF TOKENS

Consider the following grammar fragment: stmt → if expr then stmt | if expr then stmt else stmt | ε expr → term relop term | term                            term →…
SPECIFICATION OF TOKENS
Posted inCompiler Design

SPECIFICATION OF TOKENS

There are 3 specifications of tokens: 1)Strings 2) Language 3)Regular expression Strings and Languages ·         An alphabet or character class is a finite set of symbols. ·         A string over an alphabet is a finite sequence of…
Tokens
Posted inCompiler Design

Tokens

Lexemes are said to be a sequence of characters (alphanumeric) in a token. There are some predefined rules for every lexeme to be identified as a valid token. These rules…
Roles of the Lexical analyzer
Posted inCompiler Design

Roles of the Lexical analyzer

Lexical analyzer performs below given tasks: Helps to identify token into the symbol table Removes white spaces and comments from the source program Correlates error messages with the source program…
Architecture
Posted inCompiler Design

Architecture

A compiler can broadly be divided into two phases based on the way they compile. Analysis Phase Known as the front-end of the compiler, the analysis phase of the compiler reads the…
Lexical Analysis
Posted inCompiler Design

Lexical Analysis

Lexical analysis is the first phase of a compiler. It takes the modified source code from language preprocessors that are written in the form of sentences. The lexical analyzer breaks…
Phases of Compiler
Posted inCompiler Design

Phases of Compiler

The compilation process is a sequence of various phases. Each phase takes input from its previous stage, has its own representation of source program, and feeds its output to the…
Enterprise Cloud Computing
Posted inCloud Computing

Enterprise Cloud Computing

Enterprise Cloud Computing refers to a computing environment residing behind a firewall that delivers software, infrastructure and platform services to an enterprise. Cloud computing also typically delivers Web services, providing access…
Cloud Federation
Posted inCloud Computing

Cloud Federation

Cloud Federation refers to the unionization of software, infrastructure and platform services from disparate networks that can be accessed by a client via the internet. The federation of cloud resources is…