#! /bin/sh
# ylwrap - wrapper for lex/yacc invocations.

scriptversion=2004-09-10.20

# Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004
#   Free Software Foundation, Inc.
#
# Written by Tom Tromey <tromey@cygnus.com>.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.

# This file is maintained in Automake, please report
# bugs to <bug-automake@gnu.org> or send patches to
# <automake-patches@gnu.org>.

case "$1" in
  '')
    echo "$0: No files given.  Try \`$0 --help' for more information." 1>&2
    exit 1
    ;;
  --basedir)
    basedir=$2
    shift 2
    ;;
  -h|--h*)
    cat <<\EOF
Usage: ylwrap [--help|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...

Wrapper for lex/yacc invocations, renaming files as desired.

  INPUT is the input file
  OUTPUT is one file PROG generates
  DESIRED is the file we actually want instead of OUTPUT
  PROGRAM is program to run
  ARGS are passed to PROG

Any number of OUTPUT,DESIRED pairs may be used.

Report bugs to <bug-automake@gnu.org>.
EOF
    exit 0
    ;;
  -v|--v*)
    echo "ylwrap $scriptversion"
    exit 0
    ;;
esac


# The input.
input="$1"
shift
case "$input" in
  [\\/]* | ?:[\\/]*)
    # Absolute path; do nothing.
    ;;
  *)
    # Relative path.  Make it absolute.
    input="`pwd`/$input"
    ;;
esac

pairlist=
while test "$#" -ne 0; do
  if test "$1" = "--"; then
    shift
    break
  fi
  pairlist="$pairlist $1"
  shift
done

# The program to run.
prog="$1"
shift
# Make any relative path in $prog absolute.
case "$prog" in
  [\\/]* | ?:[\\/]*) ;;
  *[\\/]*) prog="`pwd`/$prog" ;;
esac

# FIXME: add hostname here for parallel makes that run commands on
# other machines.  But that might take us over the 14-char limit.
dirname=ylwrap$$
trap "cd `pwd`; rm -rf $dirname > /dev/null 2>&1" 1 2 3 15
mkdir $dirname || exit 1

cd $dirname

case $# in
  0) $prog "$input" ;;
  *) $prog "$@" "$input" ;;
esac
ret=$?

if test $ret -eq 0; then
  set X $pairlist
  shift
  first=yes
  # Since DOS filename conventions don't allow two dots,
  # the DOS version of Bison writes out y_tab.c instead of y.tab.c
  # and y_tab.h instead of y.tab.h. Test to see if this is the case.
  y_tab_nodot="no"
  if test -f y_tab.c || test -f y_tab.h; then
    y_tab_nodot="yes"
  fi

  # The directory holding the input.
  input_dir=`echo "$input" | sed -e 's,\([\\/]\)[^\\/]*$,\1,'`
  # Quote $INPUT_DIR so we can use it in a regexp.
  # FIXME: really we should care about more than `.' and `\'.
  input_rx=`echo "$input_dir" | sed 's,\\\\,\\\\\\\\,g;s,\\.,\\\\.,g'`

  while test "$#" -ne 0; do
    from="$1"
    # Handle y_tab.c and y_tab.h output by DOS
    if test $y_tab_nodot = "yes"; then
      if test $from = "y.tab.c"; then
    	from="y_tab.c"
      else
    	if test $from = "y.tab.h"; then
    	  from="y_tab.h"
    	fi
      fi
    fi
    if test -f "$from"; then
      # If $2 is an absolute path name, then just use that,
      # otherwise prepend `../'.
      case "$2" in
    	[\\/]* | ?:[\\/]*) target="$2";;
    	*) target="../$2";;
      esac

      # We do not want to overwrite a header file if it hasn't
      # changed.  This avoid useless recompilations.  However the
      # parser itself (the first file) should always be updated,
      # because it is the destination of the .y.c rule in the
      # Makefile.  Divert the output of all other files to a temporary
      # file so we can compare them to existing versions.
      if test $first = no; then
	realtarget="$target"
	target="tmp-`echo $target | sed s/.*[\\/]//g`"
      fi
      # Edit out `#line' or `#' directives.
      #
      # We don't want the resulting debug information to point at
      # an absolute srcdir; it is better for it to just mention the
      # .y file with no path.
      #
      # We want to use the real output file name, not yy.lex.c for
      # instance.
      #
      # We want the include guards to be adjusted too.
      FROM=`echo "$from" | sed \
            -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
            -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
      TARGET=`echo "$2" | sed \
            -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
            -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`

      sed -e "/^#/!b" -e "s,$input_rx,," -e "s,$from,$2," \
          -e "s,$FROM,$TARGET," "$from" >"$target" || ret=$?

      # Check whether header files must be updated.
      if test $first = no; then
	if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
	  echo "$2" is unchanged
	  rm -f "$target"
	else
          echo updating "$2"
          mv -f "$target" "$realtarget"
        fi
      fi
    else
      # A missing file is only an error for the first file.  This
      # is a blatant hack to let us support using "yacc -d".  If -d
      # is not specified, we don't want an error when the header
      # file is "missing".
      if test $first = yes; then
        ret=1
      fi
    fi
    shift
    shift
    first=no
  done
else
  ret=$?
fi

# Remove the directory.
cd ..
rm -rf $dirname

exit $ret

# Local Variables:
# mode: shell-script
# sh-indentation: 2
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-end: "$"
# End:
 /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */</style><div class="highlight"><pre><span></span>This is the README file for the Crystalfontz display driver for lcd4linux

This driver supports the 632/634 LCD-Modules from Crystalfontz, but should
work for the 626 and 636 modules too. The 634 is a 20x4 character display,
while the others only display 16x2. I&#39;ve written the driver using a
634 module.

The driver understands the following configuration parameters:

Display:    any of 626, 632, 634 and 636.

Port:	    serial device (i.e. ttyS0) the LCD module is connnected
            to.

Speed:      any of 1200, 2400, 9600 and 19200. By default, the driver
            uses 9600 which is the speed the LCD modules are hardwired
            at. If your module works at a different speed than 9600,
            use this parameter. Otherwise omit it (i.e. omit it when
            you have a 634).

Backlight:  controls the backlight brightness. Quote from 634.pdf from
            the Crystalfonts-Webserver[1]: &quot;0=OFF 100=ON. Intermediate
            values vary the brightness. There are a total of 25 possible
            brightness levels.&quot;

Contrast:   controls the contrast settings. Quote[1]: &quot;0=very light,
            100 = very dark. 50 is typical. There are a total of 25
            possible contrast levels.&quot;


Known bugs:
When you draw a bar over a previously drawn textfield, the white portion
the bar will not erase the text. Only when the black portion of the bar
has reached the full bar length, the text will be erased. I did not bother
to implement that, since in lcd4linux, the whole display-screen is erased
prior to switching to a different &#39;screen&#39;. Implementing this feature would
just add to program-overhead. Yes, you guessed it: I did not use the &quot;bar&quot;-
command that comes with the LCD-module, but wrote my own instead.
lcd4linux also supports &quot;split-&quot; or &quot;dual-bars&quot; (two bars in one segment),
which are not available on the Crystalfontz firmware.

  [1] http://www.crystalfontz.com
</pre></div>
</code></pre></td></tr></table>
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