UNIX系统C语言联机帮助系统的设计与实现

DESIGN AND IMPLEMENTATION OF AN ON-LINE HELP SYSTEM USING C LANGUAGE IN UNIX ENVIRONMENT

本文较详细地介绍了ＵＮＩＸ环境下Ｃ语言的联机帮助系统ｃｈｅｌｐ的设计与实现。该系统由一个辅助的ｓｈｅｌｌ程序和联机帮助系统自身构成。前者的作用在于加速系统的开发，使得在增删及修正帮助信息时系统的更新得以自动完成，后者包括各类帮助信息的正文，涉及ＡＮＳＩＣ与ＵＮＩＸＣ标准库函数的用法以及可被程序员任意剪裁的示例程序。

A computer on-line help system for C programming language under UNIX is developed and discussed in this paper. This system consists of a C program and a data file. The latter contains messages mainly on the usage of ANSI C and UNIX C library functions as well as examples, which show typical uses of many functions and can be pasted into any text being edited with editors like ed and vi. Additionally,a shell program updating the system automatically is also discussed.