Explain parsing techniques, Computer Engineering

Assignment Help:

Explain any three parsing techniques.

Following are three parsing techniques:

Top-down parsing: This parsing can be viewed as an attempt to get left-most derivations of an input-stream through searching for parse trees by using a top-down expansion of the specified formal grammar rules. Tokens are used from left to right. Inclusive option is used to accommodate ambiguity through expanding all alternative right- hand-sides of grammar rules.

Bottom-up parsing: A parser can begin with the input and attempt to rewrite this to the start symbol. Instinctively, the parser attempts to place the most fundamental elements, then the elements having these, and so on. LR parsers are illustrations of bottom-up parsers. The other term used for this type parser is Shift-Reduce parsing.

Recursive descent parsing: This is a top down parsing without backtracking. This parsing technique utilizes a set of recursive processes to perform parsing. Salient features of recursive descent parsing are its generality and simplicity. This can be implemented in any language supporting recursive procedures.

Related Discussions:- Explain parsing techniques

What is model view controller (mvc), Model-View-Controller (MVC) is a desig...

Model-View-Controller (MVC) is a design pattern in which "the user input, the modelling of the external world and the visual feedback to the user are explicitly splitted and handle

Maximum size of a database, What is the maximum size of a database that can...

What is the maximum size of a database that can be opened in Microsoft Access? Ans) 1 Gigabyte

Explain the significance of binary data, Explain the Significance of Binary...

Explain the Significance of Binary Data Controlled devices generally contain registers that are made up of binary digits (bits). The following illustration shows how these regi

Define windows authentication, Windows Authentication This provider uti...

Windows Authentication This provider utilizes the authentication capabilities of IIS. After IIS completes its authentication, ASP.NET uses the authenticated identity's token to

Which objects are independent transport objects, Which objects are independ...

Which objects are independent transport objects? Domains, Data elements, Tables, Technical settings for tables, Secondary indexes for transparent tables, Structures, Views, Ma

Find minimum number of resource so that no deadlock arise, An operating sys...

An operating system contains 3 user processes each requiring 2 units of resource R. The minimum number of units of R such that no deadlocks will ever arise is? Ans. The minimum

Explain the matlab language, This is a high-level matrix/array language wit...

This is a high-level matrix/array language with control flow statements, functions, data structures, input/output, and object-oriented programming features. It permits both "progra

How the temperature effecting the delays in a chip, How the temperature eff...

How the temperature effecting the delays in a chip The delays are directly proportional to the temperature. As the temperature enhances the delays are enhances and chip wil

Convert binary number in two''s compliment form, Convert binary number in t...

Convert binary number in two's compliment form 0100 1000. Converting the binary number into 2's compliment from 0100 1000 is given below: 01001000 => 10111000

Reduced instruction set computer - risc, Reduced Instruction Set Computer (...

Reduced Instruction Set Computer (RISC): As we discussed before most of the modern CPUs are of the GPR (General Purpose Register) type. A few instances of such type of CPUs ar

Write Your Message!

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd