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Diffstat (limited to 'gcc-4.9/libjava/scripts/MakeCharTables.java')
| -rw-r--r-- | gcc-4.9/libjava/scripts/MakeCharTables.java | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/gcc-4.9/libjava/scripts/MakeCharTables.java b/gcc-4.9/libjava/scripts/MakeCharTables.java new file mode 100644 index 000000000..d9db129cf --- /dev/null +++ b/gcc-4.9/libjava/scripts/MakeCharTables.java @@ -0,0 +1,212 @@ +/* MakeCharTables.java - converts gnu.java.lang.CharData into + include/java-chartables.h + Copyright (C) 2002 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath 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. + +GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +import gnu.java.lang.CharData; + +public class MakeCharTables implements CharData +{ + public static void main(String[] args) + { + System.out.println("/* java-chartables.h -- Character tables for java.lang.Character -*- c++ -*-\n" + + " Copyright (C) 2002 Free Software Foundation, Inc.\n" + + " *** This file is generated by scripts/MakeCharTables.java ***\n" + + "\n" + + "This file is part of GNU Classpath.\n" + + "\n" + + "GNU Classpath is free software; you can redistribute it and/or modify\n" + + "it under the terms of the GNU General Public License as published by\n" + + "the Free Software Foundation; either version 2, or (at your option)\n" + + "any later version.\n" + + "\n" + + "GNU Classpath is distributed in the hope that it will be useful, but\n" + + "WITHOUT ANY WARRANTY; without even the implied warranty of\n" + + "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n" + + "General Public License for more details.\n" + + "\n" + + "You should have received a copy of the GNU General Public License\n" + + "along with GNU Classpath; see the file COPYING. If not, write to the\n" + + "Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA\n" + + "02110-1301 USA.\n" + + "\n" + + "Linking this library statically or dynamically with other modules is\n" + + "making a combined work based on this library. Thus, the terms and\n" + + "conditions of the GNU General Public License cover the whole\n" + + "combination.\n" + + "\n" + + "As a special exception, the copyright holders of this library give you\n" + + "permission to link this library with independent modules to produce an\n" + + "executable, regardless of the license terms of these independent\n" + + "modules, and to copy and distribute the resulting executable under\n" + + "terms of your choice, provided that you also meet, for each linked\n" + + "independent module, the terms and conditions of the license of that\n" + + "module. An independent module is a module which is not derived from\n" + + "or based on this library. If you modify this library, you may extend\n" + + "this exception to your version of the library, but you are not\n" + + "obligated to do so. If you do not wish to do so, delete this\n" + + "exception statement from your version. */\n" + + "\n" + + "#ifndef __JAVA_CHARTABLES_H__\n" + + "#define __JAVA_CHARTABLES_H__\n" + + "\n" + + "// These tables are automatically generated by scripts/MakeCharTables.java.\n" + + "// This is in turn parsing gnu.java.lang.CharData, which is generated by\n" + + "// scripts/unicode-muncher.pl. The Unicode data comes from\n" + + "// www.unicode.org; this header is based on\n" + + "// " + SOURCE + ". JDK 1.4 uses Unicode version 3.0.0.\n" + + "// DO NOT EDIT the tables. Instead, fix the upstream scripts and run\n" + + "// them again.\n" + + "\n" + + "// The data is stored in C style arrays of the appropriate CNI types, to\n" + + "// guarantee that the data is constant and non-relocatable. The field\n" + + "// <code>blocks</code> stores the offset of a block of 2<supSHIFT</sup>\n" + + "// characters within <code>data</code>. The data field, in turn, stores\n" + + "// information about each character in the low order bits, and an offset\n" + + "// into the attribute tables <code>upper</code>, <code>lower</code>,\n" + + "// <code>numValue</code>, and <code>direction</code>. Notice that the\n" + + "// attribute tables are much smaller than 0xffff entries; as many characters\n" + + "// in Unicode share common attributes. Finally, there is a listing for\n" + + "// <code>title</code> exceptions (most characters just have the same title\n" + + "// case as upper case).\n" + + "\n" + + "// This file should only be included by natCharacter.cc\n" + + "\n" + + "/**\n" + + " * The character shift amount to look up the block offset. In other words,\n" + + " * <code>(char) (blocks[ch >> SHIFT] + ch)</code> is the index where\n" + + " * <code>ch</code> is described in <code>data</code>.\n" + + " */\n" + + "#define SHIFT " + SHIFT); + + convertString("/**\n" + + " * The mapping of character blocks to their location in <code>data</code>.\n" + + " * Each entry has been adjusted so that a modulo 16 sum with the desired\n" + + " * character gives the actual index into <code>data</code>.\n" + + " */", + char.class, "blocks", BLOCKS); + + convertString("/**\n" + + " * Information about each character. The low order 5 bits form the\n" + + " * character type, the next bit is a flag for non-breaking spaces, and the\n" + + " * next bit is a flag for mirrored directionality. The high order 9 bits\n" + + " * form the offset into the attribute tables. Note that this limits the\n" + + " * number of unique character attributes to 512, which is not a problem\n" + + " * as of Unicode version 3.2.0, but may soon become one.\n" + + " */", + char.class, "data", DATA); + + convertString("/**\n" + + " * This is the attribute table for computing the numeric value of a\n" + + " * character. The value is -1 if Unicode does not define a value, -2\n" + + " * if the value is not a positive integer, otherwise it is the value.\n" + + " */", + short.class, "numValue", NUM_VALUE); + + convertString("/**\n" + + " * This is the attribute table for computing the uppercase representation\n" + + " * of a character. The value is the difference between the character and\n" + + " * its uppercase version.\n" + + " */", + short.class, "upper", UPPER); + + convertString("/**\n" + + " * This is the attribute table for computing the lowercase representation\n" + + " * of a character. The value is the difference between the character and\n" + + " * its lowercase version.\n" + + " */", + short.class, "lower", LOWER); + + convertString("/**\n" + + " * This is the attribute table for computing the directionality class\n" + + " * of a character. At present, the value is in the range 0 - 18 if the\n" + + " * character has a direction, otherwise it is -1.\n" + + " */", + byte.class, "direction", DIRECTION); + + convertString("/**\n" + + " * This is the listing of titlecase special cases (all other character\n" + + " * can use <code>upper</code> to determine their titlecase). The listing\n" + + " * is a sequence of character pairs; converting the first character of the\n" + + " * pair to titlecase produces the second character.\n" + + " */", + char.class, "title", TITLE); + + System.out.println(); + System.out.println("#endif /* __JAVA_CHARTABLES_H__ */"); + } + + private static void convertString(String header, Class type, + String name, String field) + { + System.out.println(); + System.out.println(header); + System.out.println("static const j" + type.getName() + " " + name + + "[] = {"); + char[] data = field.toCharArray(); + int wrap; + if (type == char.class) + wrap = 10; + else if (type == byte.class) + wrap = 21; + else if (type == short.class) + wrap = 13; + else + throw new Error("Unexpeced type"); + for (int i = 0; i < data.length; i += wrap) + { + System.out.print(" "); + for (int j = 0; j < wrap; j++) + { + if (i + j >= data.length) + break; + System.out.print(" "); + if (type == char.class) + System.out.print((int) data[i + j]); + else if (type == byte.class) + System.out.print((byte) data[i + j]); + else if (type == short.class) + System.out.print((short) data[i + j]); + System.out.print(","); + } + System.out.println(); + } + System.out.println(" };\n" + + "/** Length of " + name + ". */\n" + + "static const int " + name + "_length = " + + data.length + ";"); + } +} |