1 #! /bin/sh

     2 

     3 #

     4 # Copyright (c) 2004, 2012, Oracle and/or its affiliates. All rights reserved.

     5 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     6 #

     7 # This code is free software; you can redistribute it and/or modify it

     8 # under the terms of the GNU General Public License version 2 only, as

     9 # published by the Free Software Foundation.  Oracle designates this

    10 # particular file as subject to the "Classpath" exception as provided

    11 # by Oracle in the LICENSE file that accompanied this code.

    12 #

    13 # This code is distributed in the hope that it will be useful, but WITHOUT

    14 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    15 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    16 # version 2 for more details (a copy is included in the LICENSE file that

    17 # accompanied this code).

    18 #

    19 # You should have received a copy of the GNU General Public License version

    20 # 2 along with this work; if not, write to the Free Software Foundation,

    21 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    22 #

    23 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    24 # or visit www.oracle.com if you need additional information or have any

    25 # questions.

    26 #

    27 

    28 # Generate a charset provider class

    29 

    30 # Required environment variables

    31 #   NAWK    awk tool

    32 #   TEMPDIR temporary directory

    33 #   HASHER  Hasher program

    34 

    35 SPEC=$1; shift

    36 DST=$1; shift

    37 

    38 eval `$NAWK <$SPEC '

    39     /^[ \t]*copyright / { printf "COPYRIGHT_YEARS=\"%s %s\"\n", $2, $3; }

    40     /^[ \t]*package / { printf "PKG=%s\n", $2; }

    41     /^[ \t]*class / { printf "CLASS=%s\n", $2; }

    42 '`

    43 

    44 OUT=$DST/$CLASS.java

    45 echo '-->' $OUT

    46 

    47 

    48 # Header

    49 #

    50 

    51 $SH ${SCRIPTS}/addNotices.sh "$COPYRIGHT_YEARS" > $OUT

    52 

    53 cat <<__END__ >>$OUT

    54 

    55 // -- This file was mechanically generated: Do not edit! -- //

    56 

    57 package $PKG;

    58 

    59 import java.nio.charset.*;

    60 

    61 

    62 public class $CLASS

    63     extends FastCharsetProvider

    64 {

    65 

    66 __END__

    67 

    68 

    69 # Alias tables

    70 #

    71 $NAWK <$SPEC >>$OUT '

    72     BEGIN { n = 1; m = 1; }

    73 

    74     /^[ \t]*charset / {

    75       csn = $2; cln = $3;

    76       lcsn = tolower(csn);

    77       lcsns[n++] = lcsn;

    78       csns[lcsn] = csn;

    79       classMap[lcsn] = cln;

    80       if (n > 2)

    81         printf "    };\n\n";

    82       printf "    static final String[] aliases_%s = new String[] {\n", cln;

    83     }

    84 

    85     /^[ \t]*alias / {

    86       acsns[m++] = tolower($2);

    87       aliasMap[tolower($2)] = lcsn;

    88       printf "        \"%s\",\n", $2;

    89     }

    90 

    91     END {

    92       printf "    };\n\n";

    93     }

    94 '

    95 

    96 

    97 # Prehashed alias and class maps

    98 #

    99 $NAWK <$SPEC >$TEMPDIR/aliases '

   100     /^[ \t]*charset / {

   101       csn = $2;

   102       lcsn = tolower(csn);

   103     }

   104     /^[ \t]*alias / {

   105       an = tolower($2);

   106       printf "%-20s \"%s\"\n", an, lcsn;

   107     }

   108 '

   109 

   110 $NAWK <$SPEC >$TEMPDIR/classes '

   111     /^[ \t]*charset / {

   112       csn = $2; cln = $3;

   113       lcsn = tolower(csn);

   114       printf "%-20s \"%s\"\n", lcsn, cln;

   115     }

   116 '

   117 

   118 ${HASHER} -i Aliases <$TEMPDIR/aliases >>$OUT

   119 ${HASHER} -i Classes <$TEMPDIR/classes >>$OUT

   120 ${HASHER} -i -e Cache -t Charset <$TEMPDIR/classes >>$OUT

   121 

   122 

   123 # Constructor

   124 #

   125 cat <<__END__ >>$OUT

   126     public $CLASS() {

   127         super("$PKG", new Aliases(), new Classes(), new Cache());

   128     }

   129 

   130 }

   131 __END__