1
GATE CSE 2003
MCQ (Single Correct Answer)
+2
-0.6

Consider the translation scheme shown below

$$\eqalign{ & S \to TR \cr & R \to + T\left\{ {pr{\mathop{\rm int}} (' + ');} \right\}\,R\,|\,\varepsilon \cr & T \to num\,\left\{ {pr{\mathop{\rm int}} (num.val);} \right\} \cr} $$

Here num is a token that represents an integer and num.val represents the corresponding integer value. For an input string '9 + 5 + 2', this translation scheme will print

A
9 + 5 + 2
B
9 5 + 2 +
C
9 5 2 + +
D
+ + 9 5 2
2
GATE CSE 2003
MCQ (Single Correct Answer)
+2
-0.6

Consider the grammar shown below

$$\eqalign{ & S \to iEtSS'\,|\,\,a \cr & S' \to eS\,|\,\,\varepsilon \cr & E \to b \cr} $$

In the predictive parse table, $$M$$, of this grammar, the entries $$M\left[ {S',e} \right]$$ and $$M\left[ {S',\phi } \right]$$ respectively are

A
$$\{ \,S' \to eS\,\} $$ and $$\{ \,S' \to \varepsilon \,\} $$
B
$$\{ \,S' \to eS\,\} $$ and $$\{ \,\,\,\} $$
C
$$\{ \,S' \to \varepsilon \,\} $$ and $$\{ \,S' \to \varepsilon \,\} $$
D
$$\{ \,S' \to eS\,,S' \to \varepsilon \} $$ and $$\{ \,S' \to \varepsilon \,\} $$
3
GATE CSE 1995
MCQ (Single Correct Answer)
+2
-0.6

A shift reduce parser carries out the actions specified within braces immediately after reducing with the corresponding rule of grammar.

$$\eqalign{ & S \to xxW\,\left\{ {pr{\mathop{\rm int}} \,'1'} \right\} \cr & S \to y\,\left\{ {pr{\mathop{\rm int}} \,'2'} \right\} \cr & W \to Sz\,\left\{ {pr{\mathop{\rm int}} \,'3'} \right\} \cr} $$

What is the translation of xxxxyzz using the syntax directed translation scheme described by the above rules?

A
23131
B
11233
C
11231
D
33211
4
GATE CSE 1992
MCQ (Single Correct Answer)
+2
-0.6
Consider the SLR(1) and LALR (1) parsing tables for a context-free grammar. Which of the following statements is/are true?
A
The goto part of both tables may be different.
B
The shift entries are identical in both the tables.
C
The reduce entries in the tables may be different.
D
The error entries in the tables may be different.
GATE CSE Subjects
Software Engineering
Web Technologies
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