M4 for Linux

Giới Thiệu · M4 for Linux

M4 for Linux is an implementation of the traditional UNIX macro processor. It is mostly SVR4 compatible although it has some extensions. M4 for Linux also has built-in functions for including files, running shell commands, and doing arithmetic. M4 for Linux is a macro processor in the sense that it copies its input to the output expanding macros as it goes. Macros are either built-in or user-defined and can take any number of arguments. Besides just doing macro expansion, m4 has built-in functions for including named files, running UNIX commands, doing integer arithmetic, manipulating text in various ways, and recursion. M4 for Linux can be used either as a front-end to a compiler or as a macro processor in its own right.