Difference between revisions of "Bottom-Up Parsing/Exercise 8: LALR(1)"

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< Bottom-Up Parsing
(Problema)
 
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== Problema ==
 
== Problema ==
Consider the following grammar, where S is the initial symbol and { a, b } is the set of terminal symbols:  
+
Consider the following grammar, where '''S''' is the initial symbol and '''{ a, b }''' is the set of terminal symbols:  
 
<source lang="text">
 
<source lang="text">
S -> G b b | a a b | b G a
+
S G b b | a a b | b G a
G -> a
+
G a
 
</source>
 
</source>
 
# Compute the set of LALR(1) states for the grammar. Build the corresponding LALR(1) parse table.
 
# Compute the set of LALR(1) states for the grammar. Build the corresponding LALR(1) parse table.

Latest revision as of 11:50, 2 May 2024

Problema

Consider the following grammar, where S is the initial symbol and { a, b } is the set of terminal symbols:

S → G b b | a a b | b G a
G → a
  1. Compute the set of LALR(1) states for the grammar. Build the corresponding LALR(1) parse table.
  2. Show the parsing process for input baaabb (including the actions/gotos and the input and stack states). In case of conflict, assume YACC's behavior.
  3. Is this an SLR(1) grammar? Why?

Solução

Solução completa

Sgbb.png