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Gnu M4, Version 1.4: A Powerful Macro Processor
by Rene Seindal
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Amazon.com Product Description (ISBN 0595137970, Paperback)GNU m4 covers the m4 macro processor. The utility copies its input to the output, expanding macros as it goes. Macros are either builtin or user-defined, and can take any number of arguments. Besides just doing macro expansion, m4 has builtin functions for including named files, running UNIX commands, doing integer arithmetic, manipulating text in various ways, recursion, etc. m4 can be used either as a front-end to a compiler, or as a macro processor in its own right.
The m4 macro processor is widely available on all UNIXes. Usually, only a small percentage of users are aware of its existence. However, those who do often become committed users. The growing popularity of GNU Autoconf, which pre-requires GNU m4 for generating the 'configure' scripts, is an incentive for many to install it, while these people will not themselves program in m4. GNU m4 is mostly compatible with the System V, Release 3 version, except for some minor differences.
This book is a printed version of the GNU m4 documentation, available online from the Free Software Foundation.
(retrieved from Amazon Thu, 12 Mar 2015 18:02:06 -0400)
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