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 Other Freely Available `awk' Implementations
 ============================================
 
      It's kind of fun to put comments like this in your awk code.
      `// Do C++ comments work? answer: yes! of course'
      Michael Brennan
 
    There are three other freely available `awk' implementations.  This
 minor node briefly describes where to get them:
 
 Unix `awk'
      Brian Kernighan has made his implementation of `awk' freely
      available.  You can retrieve this version via the World Wide Web
      from his home page.(1) It is available in several archive formats:
 
     Shell archive
           `http://cm.bell-labs.com/who/bwk/awk.shar'
 
     Compressed `tar' file
           `http://cm.bell-labs.com/who/bwk/awk.tar.gz'
 
     Zip file
           `http://cm.bell-labs.com/who/bwk/awk.zip'
 
      This version requires an ISO C (1990 standard) compiler; the C
      compiler from GCC (the GNU Compiler Collection) works quite nicely.
 
       Extensions in the Bell Laboratories `awk' BTL, for a list
      of extensions in this `awk' that are not in POSIX `awk'.
 
 `mawk'
      Michael Brennan has written an independent implementation of `awk',
      called `mawk'.  It is available under the GPL ( GNU General
      Public License Copying.), just as `gawk' is.
 
      You can get it via anonymous `ftp' to the host `ftp.whidbey.net'.
      Change directory to `/pub/brennan'.  Use "binary" or "image" mode,
      and retrieve `mawk1.3.3.tar.gz' (or the latest version that is
      there).
 
      `gunzip' may be used to decompress this file. Installation is
      similar to `gawk''s ( Compiling and Installing `gawk' on
      Unix Unix Installation.).
 
      `mawk' has the following extensions that are not in POSIX `awk':
 
         * The `fflush' built-in function for flushing buffered output
           ( Input/Output Functions I/O Functions.).
 
DONTPRINTYET          * The `**' and `**=' operators ( Arithmetic Operators
           Arithmetic Ops.  and also see *Note Assignment Expressions:
DONTPRINTYET          * The `**' and `**=' operators ( Arithmetic Operators
           Arithmetic Ops.  and also see  Assignment Expressions

           Assignment Ops).
 
         * The use of `func' as an abbreviation for `function' (
           Function Definition Syntax Definition Syntax.).
 
         * The `\x' escape sequence ( Escape Sequences).
 
         * The `/dev/stdout', and `/dev/stderr' special files (
           Special File Names in `gawk' Special Files.).  Use `"-"'
           instead of `"/dev/stdin"' with `mawk'.
 
         * The ability for `FS' and for the third argument to `split' to
           be null strings ( Making Each Character a Separate
           Field Single Character Fields.).
 
         * The ability to delete all of an array at once with `delete
           ARRAY' ( The `delete' Statement Delete.).
 
         * The ability for `RS' to be a regexp ( How Input Is Split
           into Records Records.).
 
         * The `BINMODE' special variable for non-Unix operating systems
           ( Using `gawk' on PC Operating Systems PC Using.).
 
      The next version of `mawk' will support `nextfile'.
 
 `awka'
      Written by Andrew Sumner, `awka' translates `awk' programs into C,
      compiles them, and links them with a library of functions that
      provides the core `awk' functionality.  It also has a number of
      extensions.
 
      The `awk' translator is released under the GPL, and the library is
      under the LGPL.
 
      To get `awka', go to `http://awka.sourceforge.net'.  You can reach
      Andrew Sumner at <andrew_sumner@bigfoot.com>.
 
    ---------- Footnotes ----------
 
    (1) `http://cm.bell-labs.com/who/bwk'
 

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