#!/bin/sh
#
# Run paragraphs of help text thru fmt(1)
# Lines with tabs or double spaces are run thru fmt(1) only for that line

# source the PCP configuration environment variables
. $PCP_DIR/etc/pcp.env

tmp=`mktemp -d /tmp/pcp.XXXXXXXXX` || exit 1
trap "rm -rf $tmp; exit" 0 1 2 3 15

$PCP_AWK_PROG -v tmpfile=$tmp/fmt '
  function fmt_line(l) {
	print l > tmpfile
	system("fmt -78 < " tmpfile) # format line(s)
	close(tmpfile)
	system(">" tmpfile) # truncate file
  }
  function format_line() {
         if (line != "") {
	    fmt_line(line)
	    line = ""
         }
  }
  BEGIN { line = "" }
  /^#/ || /^@/  { format_line(); print; next }
  /	/ || /  / { format_line(); fmt_line($0); next }
  /^$/ { format_line(); print; next }
  { 
    if (line == "")
      line = $0
    else
      line = sprintf("%s\n%s",line,$0) 
  }
  END { format_line() }
'