m4(feed) - phpMan

M4(1)                            User Commands                           M4(1)
NAME
       m4 - macro processor
SYNOPSIS
       m4 [OPTION]... [FILE]...
DESCRIPTION
       Process  macros in FILEs.  If no FILE or if FILE is `-', standard input
       is read.
       Mandatory or optional  arguments  to  long  options  are  mandatory  or
       optional for short options too.
   Operation modes:
       --help display this help and exit
       --version
              output version information and exit
       -E, --fatal-warnings
              once:  warnings  become  errors,  twice: stop execution at first
              error
       -i, --interactive
              unbuffer output, ignore interrupts
       -P, --prefix-builtins
              force a `m4_' prefix to all builtins
       -Q, --quiet, --silent
              suppress some warnings for builtins
       --warn-macro-sequence[=REGEXP]
              warn if macro definition matches REGEXP,
              default \$\({[^}]*}\|[0-9][0-9]+\)
       -W, --word-regexp=REGEXP
              use REGEXP for macro name syntax
   Preprocessor features:
       -D, --define=NAME[=VALUE]
              define NAME as having VALUE, or empty
       -I, --include=DIRECTORY
              append DIRECTORY to include path
       -s, --synclines
              generate `#line NUM "FILE"' lines
       -U, --undefine=NAME
              undefine NAME
   Limits control:
       -g, --gnu
              override -G to re-enable GNU extensions
       -G, --traditional
              suppress all GNU extensions
       -H, --hashsize=PRIME
              set symbol lookup hash table size [509]
       -L, --nesting-limit=NUMBER
              change nesting limit, 0 for unlimited [0]
   Frozen state files:
       -F, --freeze-state=FILE
              produce a frozen state on FILE at end
       -R, --reload-state=FILE
              reload a frozen state from FILE at start
   Debugging:
       -d, --debug[=FLAGS]
              set debug level (no FLAGS implies `aeq')
       --debugfile[=FILE]
              redirect debug and trace output to FILE (default stderr, discard
              if empty string)
       -l, --arglength=NUM
              restrict macro tracing size
       -t, --trace=NAME
              trace NAME when it is defined
   FLAGS is any of:
       a      show actual arguments
       c      show before collect, after collect and after call
       e      show expansion
       f      say current input file name
       i      show changes in input files
       l      say current input line number
       p      show results of path searches
       q      quote values as necessary, with a or e flag
       t      trace for all macro calls, not only traceon'ed
       x      add a unique macro call id, useful with c flag
       V      shorthand for all of the above flags
       If defined, the environment variable `M4PATH' is a colon-separated list
       of directories included after any specified by `-I'.
       Exit status is 0 for success, 1 for failure, 63 for frozen file version
       mismatch, or whatever value was passed to the m4exit macro.
AUTHOR
       Written by Rene' Seindal.
REPORTING BUGS
       Report bugs to: bug-m4 AT gnu.org
       GNU M4 home page: <http://www.gnu.org/software/m4/>;
       General help using GNU software: <http://www.gnu.org/gethelp/>;
COPYRIGHT
       Copyright  (C) 2016 Free Software Foundation, Inc.  License GPLv3+: GNU
       GPL version 3 or later <http://gnu.org/licenses/gpl.html>;.
       This is free software: you are free  to  change  and  redistribute  it.
       There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
       The  full  documentation  for m4 is maintained as a Texinfo manual.  If
       the info and m4 programs are properly installed at your site, the  com-
       mand
              info m4
       should give you access to the complete manual.
GNU M4 1.4.18                    December 2016                           M4(1)