#! /bin/sh+
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+
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#+
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# Copyright (c) 2004, 2008, Oracle and/or its affiliates. All rights reserved.+
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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.+
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#+
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# This code is free software; you can redistribute it and/or modify it+
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# under the terms of the GNU General Public License version 2 only, as+
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# published by the Free Software Foundation.  Oracle designates this+
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# particular file as subject to the "Classpath" exception as provided+
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# by Oracle in the LICENSE file that accompanied this code.+
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#+
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# This code is distributed in the hope that it will be useful, but WITHOUT+
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or+
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# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License+
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# version 2 for more details (a copy is included in the LICENSE file that+
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# accompanied this code).+
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#+
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# You should have received a copy of the GNU General Public License version+
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# 2 along with this work; if not, write to the Free Software Foundation,+
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.+
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#+
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# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA+
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# or visit www.oracle.com if you need additional information or have any+
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# questions.+
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#+
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+
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# Generate a charset provider class+
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+
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# Required environment variables+
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#   NAWK	awk tool+
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#   TEMPDIR      temporary directory+
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#   HASHER	Hasher program+
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+
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SPEC=$1; shift+
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DST=$1; shift+
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+
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eval `$NAWK <$SPEC '+
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  /^[ \t]*copyright / { printf "COPYRIGHT_YEARS=\"%s %s\"\n", $2, $3; }+
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  /^[ \t]*package / { printf "PKG=%s\n", $2; }+
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  /^[ \t]*class / { printf "CLASS=%s\n", $2; }+
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'`+
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+
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OUT=$DST/$CLASS.java+
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echo '-->' $OUT+
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+
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+
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# Header+
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#+
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+
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$SH ./addNotices.sh "$COPYRIGHT_YEARS" > $OUT+
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+
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cat <<__END__ >>$OUT+
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+
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// -- This file was mechanically generated: Do not edit! -- //+
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+
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package $PKG;+
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+
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import java.nio.charset.*;+
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+
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+
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public class $CLASS+
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    extends FastCharsetProvider+
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{+
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+
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__END__+
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+
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+
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# Alias tables+
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#+
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$NAWK <$SPEC >>$OUT '+
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  BEGIN { n = 1; m = 1; }+
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+
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  /^[ \t]*charset / {+
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    csn = $2; cln = $3;+
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    lcsn = tolower(csn);+
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    lcsns[n++] = lcsn;+
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    csns[lcsn] = csn;+
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    classMap[lcsn] = cln;+
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    if (n > 2)+
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      printf "    };\n\n";+
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    printf "    static final String[] aliases_%s = new String[] {\n", cln;+
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  }+
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+
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  /^[ \t]*alias / {+
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    acsns[m++] = tolower($2);+
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    aliasMap[tolower($2)] = lcsn; +
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    printf "        \"%s\",\n", $2;+
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  }+
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+
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  END {+
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    printf "    };\n\n";+
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  }+
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'+
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+
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+
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# Prehashed alias and class maps+
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#+
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$NAWK <$SPEC >$TEMPDIR/aliases '+
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  /^[ \t]*charset / {+
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    csn = $2;+
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    lcsn = tolower(csn);+
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  }+
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  /^[ \t]*alias / {+
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    an = tolower($2);+
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    printf "%-20s \"%s\"\n", an, lcsn;+
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  }+
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'+
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+
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$NAWK <$SPEC >$TEMPDIR/classes '+
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  /^[ \t]*charset / {+
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    csn = $2; cln = $3;+
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    lcsn = tolower(csn);+
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    printf "%-20s \"%s\"\n", lcsn, cln;+
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  }+
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'+
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+
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${HASHER} -i Aliases <$TEMPDIR/aliases >>$OUT+
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${HASHER} -i Classes <$TEMPDIR/classes >>$OUT+
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${HASHER} -i -e Cache -t Charset <$TEMPDIR/classes >>$OUT+
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+
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+
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# Constructor+
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#+
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cat <<__END__ >>$OUT+
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    public $CLASS() {+
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        super("$PKG", new Aliases(), new Classes(), new Cache());+
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    }+
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+
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}+
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__END__+
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