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#! /bin/sh
# /*@@
#   @file      CCTK_Functions.sh
#   @date      Wed Jul 21 11:16:06 1999
#   @author    Tom Goodale
#   @desc
#
#   @enddesc
#   @version $Header$
#
# @@*/

_CCTKI_FILES=""

# /*@@
#   @routine    CCTK_Search
#   @date       Wed Jul 21 11:16:35 1999
#   @author     Tom Goodale
#   @desc
#   Used to search for something in various directories
#   @enddesc
#@@*/

CCTK_Search()
{
  eval  $1=""
  if test $# -lt 4 ; then
    cctk_basedir=""
  else
    cctk_basedir="$4/"
  fi
  for cctk_place in $2
    do
      echo $ac_n "  Looking in $cctk_place""...$ac_c" #1>&6
      if test -r "$cctk_basedir$cctk_place/$3" ; then
        echo "$ac_t""... Found" #1>&6
        eval $1="$cctk_place"
        break
      fi
      if test -d "$cctk_basedir$cctk_place/$3" ; then
        echo "$ac_t""... Found" #1>&6
        eval $1="$cctk_place"
        break
      fi
      echo "$ac_t"" No" #1>&6
    done

  return
}

# /*@@
#   @routine    CCTK_CreateFile
#   @date       Wed Jul 21 11:16:35 1999
#   @author     Tom Goodale
#   @desc
#   Creates a file
#   @enddesc
#@@*/

CCTK_CreateFile()
{
  # Remove old file
  if test -f "$1.tmp" ; then
    rm -f $1.tmp
  fi

  # Create temporary file
  echo "$2" > $1.tmp

  # Remember this file
  _CCTKI_FILES="$_CCTKI_FILES $1"

  return
}

# /*@@
#   @routine    CCTK_WriteLine
#   @date       Wed Jul 21 11:16:35 1999
#   @author     Tom Goodale
#   @desc
#   Writes a line to a file
#   @enddesc
#@@*/

CCTK_WriteLine()
{
  echo "$2" >> $1.tmp
  return
}

# /*@@
#   @routine    CCTK_AddPrefix
#   @date       Sat Nov  4 00:23:23 2000
#   @author     Tom Goodale
#   @desc
#   Adds a prefix to each member of a list
#   @enddesc
#@@*/

CCTK_AddPrefix()
{
  unset _cctk_addprefix_retval

  for val in $2
  do
    if test -n "$val" ; then
      _cctk_addprefix_retval="$_cctk_addprefix_retval $1$val"
    fi
  done

  echo "$_cctk_addprefix_retval"

  unset _cctk_addprefix_retval
}

# /*@@
#   @routine    CCTK_AddSuffix
#   @date       Sat Nov  4 00:23:23 2000
#   @author     Tom Goodale
#   @desc
#   Adds a suffix to each member of a list
#   @enddesc
#@@*/

CCTK_AddSuffix()
{
  unset _cctk_addsuffix_retval

  for val in $2
  do
    if test -n "$val" ; then
      _cctk_addsuffix_retval="$_cctk_addsuffix_retval $val$1"
    fi
  done

  echo "$_cctk_addsuffix_retval"

  unset _cctk_addsuffix_retval
}

# /*@@
#   @routine    CCTK_Wrap
#   @date       Sat Nov  4 00:23:23 2000
#   @author     Tom Goodale
#   @desc
#   Adds a prefix and a suffix to each member of a list
#   @enddesc
#@@*/

CCTK_Wrap()
{
  unset _cctk_wrap_retval

  for val in $3
  do
    if test -n "$val" ; then
      _cctk_wrap_retval="$_cctk_wrap_retval $1$val$2"
    fi
  done

  echo "$_cctk_wrap_retval"

  unset _cctk_wrap_retval
}

# /*@@
#   @file      CCTK_Functions.sh
#   @date      Mon Jun 25 13:14:08 2001
#   @author    Tom Goodale
#   @desc
#   Write out all files created with CCTK_CreateFile.
#   Compares against old version and only overwrites
#   if the file and its contents is genuinely new.
#   @enddesc
# @@*/
CCTK_FinishFiles()
{
  if test -n "$_CCTKI_FILES" ; then
    for i in $_CCTKI_FILES ; do
      echo "creating $i"
    done
    for i in $_CCTKI_FILES ; do
      if test -f $i ; then
        if cmp -s $i $i.tmp 2>/dev/null ; then
          echo "$i is unchanged"
          rm -f $i.tmp
        else
          rm -f $i
          mv $i.tmp $i
        fi
      else
        mv $i.tmp $i
      fi
    done
  fi

  return
}