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

RISC performance using optimizing compilers, Q. RISC Performance using opti...

Q. RISC Performance using optimizing compilers? Performance using optimizing compilers: As instructions are simple compilers can be developed for efficient code organization a

Types of consumer oriented applications of e-commerce, What are the types o...

What are the types of consumer oriented applications of E-commerce? Four types of Consumer Oriented applications within E-Commerce are as given below: 1. B2C (business-to-c

Software engineering, What are coupling and cohesion and why are they impor...

What are coupling and cohesion and why are they important concepts in software design?

Main characteristics of horizontal organizational structure, What are the m...

What are the main characteristics of Horizontal Organizational Structure? Horizontal Organization’s main characteristics are given below: The work is structured all aroun

State and describe the iros subsystems, Question: (a) iRoom was constru...

Question: (a) iRoom was constructed based on the guiding principles listed below, discuss on each one of those principles with respect to why the specific principle was adopted

Design a memory buffer of limited size, Extend task 1 so that it now suppor...

Extend task 1 so that it now supports a memory buffer of limited size. Provide the same functionality as task 1 except now make the server work with a limited buffer size. Like

Time slice, The Linux Process Scheduler uses time slice to prevent a single...

The Linux Process Scheduler uses time slice to prevent a single process from using the CPU for too long. A time slice specifies how long the process can use the CPU. In our simulat

Determine a sample rate required for telephone conversation, A sample rate ...

A sample rate of            is required for a good quality representation of telephone conversation. A sample rate of 50 times/second /mile of distance travelled are needed fo

Explain derived equations and models, Each student will be assigned a binar...

Each student will be assigned a binary system. The experimental references and the conditions are indicated in the table below. The student should make use of software available on

What are the types of calendars in a single interface, What are the types o...

What are the types of calendars in a single interface? Member Event calendar helps users manage their personal time, Kept track of meetings with others, and so on. Tea

Write Your Message!

Captcha
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