File Extension M4

(TIP!) Click here to run a Free Scan for easy-to-fix errors that may prevent M4 files from opening on your PC!

M4 File Extension Description

The M4 file extension is associated with the m4 macro processor developed by Brian Kernighan and Dennis Ritchie in 1977.

The m4 macro processing language is a text-replacement program whose main function is to re-use text templates in programming, text processing, and text editing programs. It is also utilized for parameter substitution, arithmetic expression, file inclusion, and programmer diagnostics. m4 is a free form macro processor utilized to execute Rational Fortran and is bundled with most versions of UNIX and GNU.

Files with the .m4 file extension are utilized in the design practice of the pervasive mail transfer agent, Sendmail. These files are used for code generation?s underlying rationale. m4 supports Fortran?s Ratfor dialect. The user or built-in either defines m4 macros. All macro arguments and prototype calls are stored in files with the .m4 extension. Files with the .m4 file extension are comprised names or identifiers, quoted strings, numbers, symbols, nested parenthesis, declarations, and statements such as ?define,? ?newline,? ?pushdef,? ?builtin,? ?ifdef? ?LEFT?, and ?RIGHT.?

The typical way in defining or redefining a macro in m4 is by using the built-in statement ?define.? The ?undefined? statement is used for removing a macro definition. The built-in conditional ?ifdef? makes it probable to examine if a macro is defined or not. The hash character # in files with the .m4 file extension represents the default opening comment delimiter. An opening comment delimiter in files with the M4 file extension is confined by quotes. Nested parentheses inside an argument list of a macro are also interpreted by m4. Input separators and tokens are succeeded by files with the .m4 file extension directly through to the output.

• Properties:

• Common Path:
  N/A
• Associated Applications:
  m4

Additional M4 File Info:

Brian Kernighan and Dennis Ritchie , M4 File Created by: http://www.cm.bell-labs.com

Files that wont open may be caused by out-dated device drivers. Get latest Driver Updates for your PC.