Explain the drawback of top down parsing of backtracking, Computer Engineering

Assignment Help:

Write down the drawback of top down parsing of backtracking.

Following are disadvantages of top down parsing of backtracking:

(i) Semantic actions can't be performed whereas making a prediction. The actions should be delayed till the prediction is identified to be a part of a successful parse.

(ii) Precise error reporting is impossible. A mismatch only triggers backtracking. A source string is identified to be erroneous just after all predictions have failed.


Related Discussions:- Explain the drawback of top down parsing of backtracking

What is slack, What is slack? 'Slack' is the amount of time you have wh...

What is slack? 'Slack' is the amount of time you have which is measured through while an event ‘really happens' and while it ‘should happen’. The term ‘really happens' can a

What is digital versatile disk read only memory, DVD-ROM employs same princ...

DVD-ROM employs same principle as a CD-ROM for reading and writing. However a smaller wavelength laser beam is used. Total capacity of DVD-ROM is 8.5GB. In double-sided DVD-ROM two

Can we use write statements in screen fields, Can we use WRITE statements i...

Can we use WRITE statements in screen fields? If not how is data transferred from field data to screen fields? We cannot write field data to the screen using the WRITE stateme

What are the four factors of open source software, What are the four signif...

What are the four significant factors that led to the development of open source software? 1. To diminish the high control value of the Proprietary Software 2. To avoid disc

Explain the working of any one of centralized spc, Explain the working of a...

Explain the working of any one of centralized SPC? Standby mode of operation is the easiest of dual processor configuration operations. Usually, one processor is active and

Give brief explanation about the keyboards, Give brief explanation about th...

Give brief explanation about the keyboards Keyboards are generally not offered as the number of options is limited and owners of the system do not want customers keying in info

Explain naming convention constants, Explanation Constants are "variable...

Explanation Constants are "variables" that cannot be changed within a function- or script-body. The value will always be the similar during script-implementation. Syntax "AX

Explain the biometric systems and biometric authentication, Explain the Bio...

Explain the Biometric Systems in brief. Biometrics: It is the science of measuring physical properties of living beings. Biometric Authentication: (a) This authenticati

What is system software, What is system software? Give an example. It i...

What is system software? Give an example. It is a collection of program that are implemented as needed to perform functions such as I.  Receiving and interpreting user comma

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