Implementation Of Parser Of Embedded Browser Based On Cache Strategy

Embedded browser takes important situation as a carrier of exchanging information in handheld devices. WAP stands for Wireless Application protocol, which can accommodate with the low-bandwidth constraints of a wireless network and the low speed constraints of handheld devices. WAP browser makes the embedded device combined with internet, and stands for the direction of the development embedded system.This paper mainly focuses on how to parse WML in resource-limited embedded systems. Imports cache Strategy and implements multi-parser. Firstly, this paper analyzes the characteristic of embedded software developemnt and the structure of WAP protocol stack. Secondarily, analyzes the structure and characteristic of WML followed by the conceptual description of its interpretation and correlative parsers. Then, researches cache technology, and builds Bayes algorithm to implement cache strategy. Finally, data structure and implementation of analytical status machine which are adopted in the interpretation of WML for resource-limited embedded systems are proposed. Both analytical methods and final data structure are discussed in detail. A primary idea on the design and implementation of WAP browser in embedded systems is put forward.The main project of this paper is based on C in Linux system. All core codes of the project are written with ANSI C while system function utilize Linux system call and ANSI C standard library functions. User-defined external interface functions are introdeced for all core codes so that when core codes are transplanted to other embedded OS, makes it convenient to transpalnt the whole project and guarantee the progress of your project.