--- a/jdk/src/share/npt/utf.c Wed Jul 05 19:45:37 2017 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,500 +0,0 @@
-/*
- * Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code 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
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/* Misc functions for conversion of Unicode and UTF-8 and platform encoding */
-
-#include <stdio.h>
-#include <stddef.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <ctype.h>
-
-#include "jni.h"
-
-#include "utf.h"
-
-/*
- * Error handler
- */
-void
-utfError(char *file, int line, char *message)
-{
- (void)fprintf(stderr, "UTF ERROR [\"%s\":%d]: %s\n", file, line, message);
- abort();
-}
-
-/*
- * Convert UTF-8 to UTF-16
- * Returns length or -1 if output overflows.
- */
-int JNICALL
-utf8ToUtf16(struct UtfInst *ui, jbyte *utf8, int len, unsigned short *output, int outputMaxLen)
-{
- int outputLen;
- int i;
-
- UTF_ASSERT(utf8);
- UTF_ASSERT(len>=0);
- UTF_ASSERT(output);
- UTF_ASSERT(outputMaxLen>0);
-
- i = 0;
- outputLen = 0;
- while ( i<len ) {
- unsigned code, x, y, z;
-
- if ( outputLen >= outputMaxLen ) {
- return -1;
- }
- x = (unsigned char)utf8[i++];
- code = x;
- if ( (x & 0xE0)==0xE0 ) {
- y = (unsigned char)utf8[i++];
- z = (unsigned char)utf8[i++];
- code = ((x & 0xF)<<12) + ((y & 0x3F)<<6) + (z & 0x3F);
- } else if ( (x & 0xC0)==0xC0 ) {
- y = (unsigned char)utf8[i++];
- code = ((x & 0x1F)<<6) + (y & 0x3F);
- }
- output[outputLen++] = code;
- }
- return outputLen;
-}
-
-/*
- * Convert UTF-16 to UTF-8 Modified
- * Returns length or -1 if output overflows.
- */
-int JNICALL
-utf16ToUtf8m(struct UtfInst *ui, unsigned short *utf16, int len, jbyte *output, int outputMaxLen)
-{
- int i;
- int outputLen;
-
- UTF_ASSERT(utf16);
- UTF_ASSERT(len>=0);
- UTF_ASSERT(output);
- UTF_ASSERT(outputMaxLen>0);
-
- outputLen = 0;
- for (i = 0; i < len; i++) {
- unsigned code;
-
- code = utf16[i];
- if ( code >= 0x0001 && code <= 0x007F ) {
- if ( outputLen + 1 >= outputMaxLen ) {
- return -1;
- }
- output[outputLen++] = code;
- } else if ( code == 0 || ( code >= 0x0080 && code <= 0x07FF ) ) {
- if ( outputLen + 2 >= outputMaxLen ) {
- return -1;
- }
- output[outputLen++] = ((code>>6) & 0x1F) | 0xC0;
- output[outputLen++] = (code & 0x3F) | 0x80;
- } else if ( code >= 0x0800 && code <= 0xFFFF ) {
- if ( outputLen + 3 >= outputMaxLen ) {
- return -1;
- }
- output[outputLen++] = ((code>>12) & 0x0F) | 0xE0;
- output[outputLen++] = ((code>>6) & 0x3F) | 0x80;
- output[outputLen++] = (code & 0x3F) | 0x80;
- }
- }
- output[outputLen] = 0;
- return outputLen;
-}
-
-int JNICALL
-utf16ToUtf8s(struct UtfInst *ui, unsigned short *utf16, int len, jbyte *output, int outputMaxLen)
-{
- return -1; /* FIXUP */
-}
-
-/* Determine length of this Standard UTF-8 in Modified UTF-8.
- * Validation is done of the basic UTF encoding rules, returns
- * length (no change) when errors are detected in the UTF encoding.
- *
- * Note: Accepts Modified UTF-8 also, no verification on the
- * correctness of Standard UTF-8 is done. e,g, 0xC080 input is ok.
- */
-int JNICALL
-utf8sToUtf8mLength(struct UtfInst *ui, jbyte *string, int length)
-{
- int newLength;
- int i;
-
- newLength = 0;
- for ( i = 0 ; i < length ; i++ ) {
- unsigned byte;
-
- byte = (unsigned char)string[i];
- if ( (byte & 0x80) == 0 ) { /* 1byte encoding */
- newLength++;
- if ( byte == 0 ) {
- newLength++; /* We gain one byte in length on NULL bytes */
- }
- } else if ( (byte & 0xE0) == 0xC0 ) { /* 2byte encoding */
- /* Check encoding of following bytes */
- if ( (i+1) >= length || (string[i+1] & 0xC0) != 0x80 ) {
- break; /* Error condition */
- }
- i++; /* Skip next byte */
- newLength += 2;
- } else if ( (byte & 0xF0) == 0xE0 ) { /* 3byte encoding */
- /* Check encoding of following bytes */
- if ( (i+2) >= length || (string[i+1] & 0xC0) != 0x80
- || (string[i+2] & 0xC0) != 0x80 ) {
- break; /* Error condition */
- }
- i += 2; /* Skip next two bytes */
- newLength += 3;
- } else if ( (byte & 0xF8) == 0xF0 ) { /* 4byte encoding */
- /* Check encoding of following bytes */
- if ( (i+3) >= length || (string[i+1] & 0xC0) != 0x80
- || (string[i+2] & 0xC0) != 0x80
- || (string[i+3] & 0xC0) != 0x80 ) {
- break; /* Error condition */
- }
- i += 3; /* Skip next 3 bytes */
- newLength += 6; /* 4byte encoding turns into 2 3byte ones */
- } else {
- break; /* Error condition */
- }
- }
- if ( i != length ) {
- /* Error in finding new length, return old length so no conversion */
- /* FIXUP: ERROR_MESSAGE? */
- return length;
- }
- return newLength;
-}
-
-/* Convert Standard UTF-8 to Modified UTF-8.
- * Assumes the UTF-8 encoding was validated by utf8mLength() above.
- *
- * Note: Accepts Modified UTF-8 also, no verification on the
- * correctness of Standard UTF-8 is done. e,g, 0xC080 input is ok.
- */
-void JNICALL
-utf8sToUtf8m(struct UtfInst *ui, jbyte *string, int length, jbyte *newString, int newLength)
-{
- int i;
- int j;
-
- j = 0;
- for ( i = 0 ; i < length ; i++ ) {
- unsigned byte1;
-
- byte1 = (unsigned char)string[i];
-
- /* NULL bytes and bytes starting with 11110xxx are special */
- if ( (byte1 & 0x80) == 0 ) { /* 1byte encoding */
- if ( byte1 == 0 ) {
- /* Bits out: 11000000 10000000 */
- newString[j++] = (jbyte)0xC0;
- newString[j++] = (jbyte)0x80;
- } else {
- /* Single byte */
- newString[j++] = byte1;
- }
- } else if ( (byte1 & 0xE0) == 0xC0 ) { /* 2byte encoding */
- newString[j++] = byte1;
- newString[j++] = string[++i];
- } else if ( (byte1 & 0xF0) == 0xE0 ) { /* 3byte encoding */
- newString[j++] = byte1;
- newString[j++] = string[++i];
- newString[j++] = string[++i];
- } else if ( (byte1 & 0xF8) == 0xF0 ) { /* 4byte encoding */
- /* Beginning of 4byte encoding, turn into 2 3byte encodings */
- unsigned byte2, byte3, byte4, u21;
-
- /* Bits in: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
- byte2 = (unsigned char)string[++i];
- byte3 = (unsigned char)string[++i];
- byte4 = (unsigned char)string[++i];
- /* Reconstruct full 21bit value */
- u21 = (byte1 & 0x07) << 18;
- u21 += (byte2 & 0x3F) << 12;
- u21 += (byte3 & 0x3F) << 6;
- u21 += (byte4 & 0x3F);
- /* Bits out: 11101101 1010xxxx 10xxxxxx */
- newString[j++] = (jbyte)0xED;
- newString[j++] = (jbyte)(0xA0 + (((u21 >> 16) - 1) & 0x0F));
- newString[j++] = (jbyte)(0x80 + ((u21 >> 10) & 0x3F));
- /* Bits out: 11101101 1011xxxx 10xxxxxx */
- newString[j++] = (jbyte)0xED;
- newString[j++] = (jbyte)(0xB0 + ((u21 >> 6) & 0x0F));
- newString[j++] = byte4;
- }
- }
- UTF_ASSERT(i==length);
- UTF_ASSERT(j==newLength);
- newString[j] = (jbyte)0;
-}
-
-/* Given a Modified UTF-8 string, calculate the Standard UTF-8 length.
- * Basic validation of the UTF encoding rules is done, and length is
- * returned (no change) when errors are detected.
- *
- * Note: No validation is made that this is indeed Modified UTF-8 coming in.
- *
- */
-int JNICALL
-utf8mToUtf8sLength(struct UtfInst *ui, jbyte *string, int length)
-{
- int newLength;
- int i;
-
- newLength = 0;
- for ( i = 0 ; i < length ; i++ ) {
- unsigned byte1, byte2, byte3, byte4, byte5, byte6;
-
- byte1 = (unsigned char)string[i];
- if ( (byte1 & 0x80) == 0 ) { /* 1byte encoding */
- newLength++;
- } else if ( (byte1 & 0xE0) == 0xC0 ) { /* 2byte encoding */
- /* Check encoding of following bytes */
- if ( (i+1) >= length || (string[i+1] & 0xC0) != 0x80 ) {
- break; /* Error condition */
- }
- byte2 = (unsigned char)string[++i];
- if ( byte1 != 0xC0 || byte2 != 0x80 ) {
- newLength += 2; /* Normal 2byte encoding, not 0xC080 */
- } else {
- newLength++; /* We will turn 0xC080 into 0 */
- }
- } else if ( (byte1 & 0xF0) == 0xE0 ) { /* 3byte encoding */
- /* Check encoding of following bytes */
- if ( (i+2) >= length || (string[i+1] & 0xC0) != 0x80
- || (string[i+2] & 0xC0) != 0x80 ) {
- break; /* Error condition */
- }
- byte2 = (unsigned char)string[++i];
- byte3 = (unsigned char)string[++i];
- newLength += 3;
- /* Possible process a second 3byte encoding */
- if ( (i+3) < length && byte1 == 0xED && (byte2 & 0xF0) == 0xA0 ) {
- /* See if this is a pair of 3byte encodings */
- byte4 = (unsigned char)string[i+1];
- byte5 = (unsigned char)string[i+2];
- byte6 = (unsigned char)string[i+3];
- if ( byte4 == 0xED && (byte5 & 0xF0) == 0xB0 ) {
- /* Check encoding of 3rd byte */
- if ( (byte6 & 0xC0) != 0x80 ) {
- break; /* Error condition */
- }
- newLength++; /* New string will have 4byte encoding */
- i += 3; /* Skip next 3 bytes */
- }
- }
- } else {
- break; /* Error condition */
- }
- }
- if ( i != length ) {
- /* Error in UTF encoding */
- /* FIXUP: ERROR_MESSAGE()? */
- return length;
- }
- return newLength;
-}
-
-/* Convert a Modified UTF-8 string into a Standard UTF-8 string
- * It is assumed that this string has been validated in terms of the
- * basic UTF encoding rules by utf8Length() above.
- *
- * Note: No validation is made that this is indeed Modified UTF-8 coming in.
- *
- */
-void JNICALL
-utf8mToUtf8s(struct UtfInst *ui, jbyte *string, int length, jbyte *newString, int newLength)
-{
- int i;
- int j;
-
- j = 0;
- for ( i = 0 ; i < length ; i++ ) {
- unsigned byte1, byte2, byte3, byte4, byte5, byte6;
-
- byte1 = (unsigned char)string[i];
- if ( (byte1 & 0x80) == 0 ) { /* 1byte encoding */
- /* Single byte */
- newString[j++] = byte1;
- } else if ( (byte1 & 0xE0) == 0xC0 ) { /* 2byte encoding */
- byte2 = (unsigned char)string[++i];
- if ( byte1 != 0xC0 || byte2 != 0x80 ) {
- newString[j++] = byte1;
- newString[j++] = byte2;
- } else {
- newString[j++] = 0;
- }
- } else if ( (byte1 & 0xF0) == 0xE0 ) { /* 3byte encoding */
- byte2 = (unsigned char)string[++i];
- byte3 = (unsigned char)string[++i];
- if ( i+3 < length && byte1 == 0xED && (byte2 & 0xF0) == 0xA0 ) {
- /* See if this is a pair of 3byte encodings */
- byte4 = (unsigned char)string[i+1];
- byte5 = (unsigned char)string[i+2];
- byte6 = (unsigned char)string[i+3];
- if ( byte4 == 0xED && (byte5 & 0xF0) == 0xB0 ) {
- unsigned u21;
-
- /* Bits in: 11101101 1010xxxx 10xxxxxx */
- /* Bits in: 11101101 1011xxxx 10xxxxxx */
- i += 3;
-
- /* Reconstruct 21 bit code */
- u21 = ((byte2 & 0x0F) + 1) << 16;
- u21 += (byte3 & 0x3F) << 10;
- u21 += (byte5 & 0x0F) << 6;
- u21 += (byte6 & 0x3F);
-
- /* Bits out: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
-
- /* Convert to 4byte encoding */
- newString[j++] = 0xF0 + ((u21 >> 18) & 0x07);
- newString[j++] = 0x80 + ((u21 >> 12) & 0x3F);
- newString[j++] = 0x80 + ((u21 >> 6) & 0x3F);
- newString[j++] = 0x80 + (u21 & 0x3F);
- continue;
- }
- }
- /* Normal 3byte encoding */
- newString[j++] = byte1;
- newString[j++] = byte2;
- newString[j++] = byte3;
- }
- }
- UTF_ASSERT(i==length);
- UTF_ASSERT(j==newLength);
- newString[j] = 0;
-}
-
-/* ================================================================= */
-
-#ifdef COMPILE_WITH_UTF_TEST /* Test program */
-
-/*
- * Convert any byte array into a printable string.
- * Returns length or -1 if output overflows.
- */
-static int
-bytesToPrintable(struct UtfInst *ui, char *bytes, int len, char *output, int outputMaxLen)
-{
- int outputLen;
- int i;
-
- UTF_ASSERT(bytes);
- UTF_ASSERT(len>=0);
- UTF_ASSERT(output);
- UTF_ASSERT(outputMaxLen>=0);
-
- outputLen = 0;
- for ( i=0; i<len ; i++ ) {
- unsigned byte;
-
- byte = bytes[i];
- if ( byte <= 0x7f && isprint(byte) && !iscntrl(byte) ) {
- if ( outputLen + 1 >= outputMaxLen ) {
- return -1;
- }
- output[outputLen++] = (char)byte;
- } else {
- if ( outputLen + 4 >= outputMaxLen ) {
- return -1;
- }
- (void)sprintf(output+outputLen,"\\x%02x",byte);
- outputLen += 4;
- }
- }
- output[outputLen] = 0;
- return outputLen;
-}
-
-static void
-test(void)
-{
- static char *strings[] = {
- "characters",
- "abcdefghijklmnopqrstuvwxyz",
- "0123456789",
- "!@#$%^&*()_+=-{}[]:;",
- NULL };
- int i;
- struct UtfInst *ui;
-
- ui = utfInitialize(NULL);
-
- i = 0;
- while ( strings[i] != NULL ) {
- char *str;
- #define MAX 1024
- char buf0[MAX];
- char buf1[MAX];
- char buf2[MAX];
- unsigned short buf3[MAX];
- int len1;
- int len2;
- int len3;
-
- str = strings[i];
-
- (void)bytesToPrintable(ui, str, (int)strlen(str), buf0, 1024);
-
- len1 = utf8FromPlatform(ui, str, (int)strlen(str), (jbyte*)buf1, 1024);
-
- UTF_ASSERT(len1==(int)strlen(str));
-
- len3 = utf8ToUtf16(ui, (jbyte*)buf1, len1, (jchar*)buf3, 1024);
-
- UTF_ASSERT(len3==len1);
-
- len1 = utf16ToUtf8m(ui, (jchar*)buf3, len3, (jbyte*)buf1, 1024);
-
- UTF_ASSERT(len1==len3);
- UTF_ASSERT(strcmp(str, buf1) == 0);
-
- len2 = utf8ToPlatform(ui, (jbyte*)buf1, len1, buf2, 1024);
-
- UTF_ASSERT(len2==len1);
- UTF_ASSERT(strcmp(str, buf2) == 0);
-
- i++;
- }
-
- utfTerminate(ui, NULL);
-
-}
-
-int
-main(int argc, char **argv)
-{
- test();
- return 0;
-}
-
-#endif