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21 lines
725 B
XML
21 lines
725 B
XML
<sect2><title> </title><para> </para></sect2>
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<sect2><title>Descriptions</title>
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<para>Last checked against version &m4-contversion;.</para>
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<sect3><title>Program file descriptions</title>
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<sect4><title>m4</title>
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<para>m4 is a macro processor. It copies input to output, expanding macros as it
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goes. Macros are either built-in or user-defined and can take any number
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of arguments. Besides just doing macro expansion, m4 has built-in functions
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for including named files, running Unix commands, doing integer arithmetic,
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manipulating text in various ways, recursion, etc. The m4 program can be used either
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as a front-end to a compiler or as a macro processor in its own
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right.</para></sect4>
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</sect3>
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</sect2>
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