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

Where the trunks lines are run between, Trunks are the lines that run betwe...

Trunks are the lines that run between (A) Subscribers and exchange (B) Switching system and power plant (C) Local area network (D) Switching stations Ans:

Method of spirit duplicating, Method : The master from which the copies wi...

Method : The master from which the copies will be taken is first prepared from a special non-absorbent glazed sheet of paper and special carbon paper which acts as the reproducing

Explain the virtual memory, In computing, virtual memory is a memory manage...

In computing, virtual memory is a memory management method developed for multitasking kernels. This technique virtualizes computer architecture's various forms of computer data sto

And-elimination rule, And-Elimination rule: In generally English says ...

And-Elimination rule: In generally English says that "if you know that lots of things are all true, so you know like any one of them is also true". Because you can specify a c

Main benefits of cd-rom, The main benefits of CD-ROMs are: These are...

The main benefits of CD-ROMs are: These are removable disks, thus they are suitable for archival storage mass replication is cheap and fast large storage capacity

Give some examples of malicious data, Give some examples of malicious data....

Give some examples of malicious data. In May 2002 year, the Norton Anti-Virus software for Windows operating systems detected around 61000 malicious programs. Several of them a

By which digits are represented, In a DTMF phone, digits are represented by...

In a DTMF phone, digits are represented by: (A) Orthogonal frequencies. (B) Orthogonal Phases. (C) Orthogonal codes. (D) Orthogonal pulses. Ans: Di

Define memory access time, Define memory access time? The time needed t...

Define memory access time? The time needed to access one word is known as the memory access time. Or It is the time that elapses among the initiation of an operation and the co

Explain about bus of register transfer, Explain about Bus of register trans...

Explain about Bus of register transfer Since a computer has several registers, paths must be provided to transfer information among registors. If separate lines are used amon

Which data structures used in language processing, Which structure can be u...

Which structure can be used as a criterion for classification of data structures used in language processing. And. Nature of a data structure, purpose of a data structure and l

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages