November 2012
Intermediate to advanced
381 pages
13h 26m
English
book
Introduction to Compiler Construction in a Java World
by Bill Campbell, Swami Iyer, Bahar Akbal-Delibas
Content preview from Introduction to Compiler Construction in a Java World
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Parsing 79
FIGURE 3.6 The steps in parsing id + id * id against the LL(1) parsing table in Figure
3.5.
For example, consider parsing the input sentence, id + id * id #. The parser would
go through the states illustrated in Figure 3.6.
a. Initially, the parser begins with a # and E on top of its stack. E represents the goal, the
entity that we wish to parse.
80 An Introduction to Compiler Construction in a Java World
b. As an id is the incoming token, table[E, id] = 1 tells us to apply rule 1, E ::= T E
0
, and
replace the E on the stack with the right-hand side, T and E
0
, with T on top. Basically,
we plan to accomplish the goal of parsing an E by accomplishing ...
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