计算机中各国文字编码的统一是必然趋势,而ISO/IEC10646正是顺应这种趋势而诞生的一个国际标准。现有的输入法绝大多数是基于本地代码页(ANSI CODE),存在着移植困难、不能跨语言平台以及向国际化标准过渡困难等缺点。本文首先分析了现有本地化输入法存在的问题,并在此基础上阐述了基于ISO10646的汉字输入法的实现方法,并给出了一个以ISO10646为核心的通用汉字输入法模型和原理,该模型由输入法管理/服务器、ISO10646输入码对照表、码本检索/过滤模块、输入法与OS接口模块、输入法内核和本地化接口六部分构成。最后,本文重点论述了输入法的核心—输入码对照表的设计和检索技术。

With the trend of unifying all the native character encoding schemes in computers, ISO has published an international standard named ISO/IEC 10646 to meet that developing tide. In this paper, we firstly analyze the limitation of the existing Chinese character input methods. It has been observed that almost all the existing Chinese character input methods are based on ANSI Code, such as GB2312, GBK, BIG-5, and these input methods have many shortcomings including the inconvenience of transference and the lack of supporting cross-lingual platforms. Then we propose a model of Chinese character input method based on ISO10646/IEC which consists of six parts: input method management, code mapping table based on ISO10646/IEC, code searching and filtering, interface with OS, input method kernel as well as localization interface. At last, we discuss the design and processing technology for the input codes-Chinese characters mapping table, a key factor in the proposed model.