本章集中讨论图1中的虚线-语法分析器和应用程序之间的接口或API(应用程序编程接口)。
This chapter concentrates on the dotted line in Figure 1 — the interface, or API (application Programming interface), between the parser and the application.
随后，语法分析器遇到已经有状态存在的price - quote或vendor。
Afterwards, the parser encounters either a price-quote or a vendor for which there are already states.
一位天才作者作品的残片将象拼七巧板一样拼合起来，遗失的“部分”可以由后代作者的引文补充，或通过语法分析补充。
The fragments form part of a giant "jigsaw puzzle" to be reassembled. Missing "pieces" can be supplied from quotations by later authors, and grammatical analysis.
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