Which is not true about syntax and semantic parts of a computer language?
| A. | Syntax is generally checked by the programmer. |
| B. | Semantics is the responsibility of the programmer |
| C. | Semantics is checked mechanically by a computer. |
| D. | Both (b) and (c) |
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Option: D Explanation : Click on Discuss to view users comments. |
Which of the following statement is true ?
| A. | SLR parser is more powerful than LALR |
| B. | LALR parser is more powerful than Canonical LR parser |
| C. | Canonical LR parser is nore powerful than LALR parser |
| D. | the parsers SLR, Canonical LR, and LALR have the same power |
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Option: C Explanation : LR is powerful than LALR parsers and LALR are powerful than SLR parsers Click on Discuss to view users comments. |
Which of the following features cannot be captured by CFG ?
| A. | syntax of if-then-else statements |
| B. | syntax of recursive procedures |
| C. | whether a variable is declared before its use |
| D. | matching nested paranthesis |
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Option: D Explanation : it is because, it is equivalent to recognizing wew, where the first w is the decleration and the second is its use, wew is not a CFG. Click on Discuss to view users comments. |
