Write an attribute grammar based on the CFG of Figure 4.11 that will build a syntax tree
Question:
Write an attribute grammar based on the CFG of Figure 4.11 that will build a syntax tree with the structure described in Figure 4.14.
Figure 4.11:
Figure 4.14:
Transcribed Image Text:
program stmt list $$ stmt list + stmt list decl | stmt list stmt | e decl int id real id stmt → id := expr | read id write expr + term | expr add op term → factor | term mult op factor еxpr term factor → + ( expr ) | id | int_const | real_const | float ( expr ) | trunc ( expr ) add-op +| - * | / mult_op →
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ANSWER Class of node program stmtlist decl stmt expr term factor Variants intdecl realdecl read writ...View the full answer
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