| /* 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 + ";"); | |
| } | |
| } |