Đang chuẩn bị liên kết để tải về tài liệu:
Compiler construction: Lecture week 12-14 - Majid Mumtaz

In this chapter, you learned to: Bottom-up Parsing, reductions, handle, handle pruning, Shift-Reduce Parsing, SRP – Stack implementation, SRP – Parser types, making the canonical item sets,. Inviting you to refer for more detail. | Compiler Construction Lecture Week 12-14 Majid Mumtaz Department of Computer Science CIIT Wah 1 Bottom-up Parsing A bottom-up parse corresponds to the construction of a parse tree for an input string beginning at the leaves the bottom and working up towards the root the top . Consider the grammar E E T T T T F F F E id Reductions The process of reducing a string w to the start symbol of the grammar. At each reduction step a specific substring matching the body of a production is replaced by the nonterminal at the head of that production. A reduction is the reverse of a step in a derivation. The goal of bottom-up parsing is therefore to construct a derivation in reverse.