| /* libxml2 - Library for parsing XML documents |
| * Copyright (C) 2006-2019 Free Software Foundation, Inc. |
| * |
| * This file is not part of the GNU gettext program, but is used with |
| * GNU gettext. |
| * |
| * The original copyright notice is as follows: |
| */ |
| |
| /* |
| * Copyright (C) 1998-2012 Daniel Veillard. All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is fur- |
| * nished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FIT- |
| * NESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| * |
| * Author: Daniel Veillard |
| */ |
| |
| /* |
| * Summary: interface for the encoding conversion functions |
| * Description: interface for the encoding conversion functions needed for |
| * XML basic encoding and iconv() support. |
| * |
| * Related specs are |
| * rfc2044 (UTF-8 and UTF-16) F. Yergeau Alis Technologies |
| * [ISO-10646] UTF-8 and UTF-16 in Annexes |
| * [ISO-8859-1] ISO Latin-1 characters codes. |
| * [UNICODE] The Unicode Consortium, "The Unicode Standard -- |
| * Worldwide Character Encoding -- Version 1.0", Addison- |
| * Wesley, Volume 1, 1991, Volume 2, 1992. UTF-8 is |
| * described in Unicode Technical Report #4. |
| * [US-ASCII] Coded Character Set--7-bit American Standard Code for |
| * Information Interchange, ANSI X3.4-1986. |
| */ |
| |
| #ifndef __XML_CHAR_ENCODING_H__ |
| #define __XML_CHAR_ENCODING_H__ |
| |
| #include <libxml/xmlversion.h> |
| |
| #ifdef LIBXML_ICONV_ENABLED |
| #include <iconv.h> |
| #endif |
| #ifdef LIBXML_ICU_ENABLED |
| #include <unicode/ucnv.h> |
| #endif |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* |
| * xmlCharEncoding: |
| * |
| * Predefined values for some standard encodings. |
| * Libxml does not do beforehand translation on UTF8 and ISOLatinX. |
| * It also supports ASCII, ISO-8859-1, and UTF16 (LE and BE) by default. |
| * |
| * Anything else would have to be translated to UTF8 before being |
| * given to the parser itself. The BOM for UTF16 and the encoding |
| * declaration are looked at and a converter is looked for at that |
| * point. If not found the parser stops here as asked by the XML REC. A |
| * converter can be registered by the user using xmlRegisterCharEncodingHandler |
| * but the current form doesn't allow stateful transcoding (a serious |
| * problem agreed !). If iconv has been found it will be used |
| * automatically and allow stateful transcoding, the simplest is then |
| * to be sure to enable iconv and to provide iconv libs for the encoding |
| * support needed. |
| * |
| * Note that the generic "UTF-16" is not a predefined value. Instead, only |
| * the specific UTF-16LE and UTF-16BE are present. |
| */ |
| typedef enum { |
| XML_CHAR_ENCODING_ERROR= -1, /* No char encoding detected */ |
| XML_CHAR_ENCODING_NONE= 0, /* No char encoding detected */ |
| XML_CHAR_ENCODING_UTF8= 1, /* UTF-8 */ |
| XML_CHAR_ENCODING_UTF16LE= 2, /* UTF-16 little endian */ |
| XML_CHAR_ENCODING_UTF16BE= 3, /* UTF-16 big endian */ |
| XML_CHAR_ENCODING_UCS4LE= 4, /* UCS-4 little endian */ |
| XML_CHAR_ENCODING_UCS4BE= 5, /* UCS-4 big endian */ |
| XML_CHAR_ENCODING_EBCDIC= 6, /* EBCDIC uh! */ |
| XML_CHAR_ENCODING_UCS4_2143=7, /* UCS-4 unusual ordering */ |
| XML_CHAR_ENCODING_UCS4_3412=8, /* UCS-4 unusual ordering */ |
| XML_CHAR_ENCODING_UCS2= 9, /* UCS-2 */ |
| XML_CHAR_ENCODING_8859_1= 10,/* ISO-8859-1 ISO Latin 1 */ |
| XML_CHAR_ENCODING_8859_2= 11,/* ISO-8859-2 ISO Latin 2 */ |
| XML_CHAR_ENCODING_8859_3= 12,/* ISO-8859-3 */ |
| XML_CHAR_ENCODING_8859_4= 13,/* ISO-8859-4 */ |
| XML_CHAR_ENCODING_8859_5= 14,/* ISO-8859-5 */ |
| XML_CHAR_ENCODING_8859_6= 15,/* ISO-8859-6 */ |
| XML_CHAR_ENCODING_8859_7= 16,/* ISO-8859-7 */ |
| XML_CHAR_ENCODING_8859_8= 17,/* ISO-8859-8 */ |
| XML_CHAR_ENCODING_8859_9= 18,/* ISO-8859-9 */ |
| XML_CHAR_ENCODING_2022_JP= 19,/* ISO-2022-JP */ |
| XML_CHAR_ENCODING_SHIFT_JIS=20,/* Shift_JIS */ |
| XML_CHAR_ENCODING_EUC_JP= 21,/* EUC-JP */ |
| XML_CHAR_ENCODING_ASCII= 22 /* pure ASCII */ |
| } xmlCharEncoding; |
| |
| /** |
| * xmlCharEncodingInputFunc: |
| * @out: a pointer to an array of bytes to store the UTF-8 result |
| * @outlen: the length of @out |
| * @in: a pointer to an array of chars in the original encoding |
| * @inlen: the length of @in |
| * |
| * Take a block of chars in the original encoding and try to convert |
| * it to an UTF-8 block of chars out. |
| * |
| * Returns the number of bytes written, -1 if lack of space, or -2 |
| * if the transcoding failed. |
| * The value of @inlen after return is the number of octets consumed |
| * if the return value is positive, else unpredictiable. |
| * The value of @outlen after return is the number of octets consumed. |
| */ |
| typedef int (* xmlCharEncodingInputFunc)(unsigned char *out, int *outlen, |
| const unsigned char *in, int *inlen); |
| |
| |
| /** |
| * xmlCharEncodingOutputFunc: |
| * @out: a pointer to an array of bytes to store the result |
| * @outlen: the length of @out |
| * @in: a pointer to an array of UTF-8 chars |
| * @inlen: the length of @in |
| * |
| * Take a block of UTF-8 chars in and try to convert it to another |
| * encoding. |
| * Note: a first call designed to produce heading info is called with |
| * in = NULL. If stateful this should also initialize the encoder state. |
| * |
| * Returns the number of bytes written, -1 if lack of space, or -2 |
| * if the transcoding failed. |
| * The value of @inlen after return is the number of octets consumed |
| * if the return value is positive, else unpredictiable. |
| * The value of @outlen after return is the number of octets produced. |
| */ |
| typedef int (* xmlCharEncodingOutputFunc)(unsigned char *out, int *outlen, |
| const unsigned char *in, int *inlen); |
| |
| |
| /* |
| * Block defining the handlers for non UTF-8 encodings. |
| * If iconv is supported, there are two extra fields. |
| */ |
| #ifdef LIBXML_ICU_ENABLED |
| /* Size of pivot buffer, same as icu/source/common/ucnv.cpp CHUNK_SIZE */ |
| #define ICU_PIVOT_BUF_SIZE 1024 |
| struct _uconv_t { |
| UConverter *uconv; /* for conversion between an encoding and UTF-16 */ |
| UConverter *utf8; /* for conversion between UTF-8 and UTF-16 */ |
| UChar pivot_buf[ICU_PIVOT_BUF_SIZE]; |
| UChar *pivot_source; |
| UChar *pivot_target; |
| }; |
| typedef struct _uconv_t uconv_t; |
| #endif |
| |
| typedef struct _xmlCharEncodingHandler xmlCharEncodingHandler; |
| typedef xmlCharEncodingHandler *xmlCharEncodingHandlerPtr; |
| struct _xmlCharEncodingHandler { |
| char *name; |
| xmlCharEncodingInputFunc input; |
| xmlCharEncodingOutputFunc output; |
| #ifdef LIBXML_ICONV_ENABLED |
| iconv_t iconv_in; |
| iconv_t iconv_out; |
| #endif /* LIBXML_ICONV_ENABLED */ |
| #ifdef LIBXML_ICU_ENABLED |
| uconv_t *uconv_in; |
| uconv_t *uconv_out; |
| #endif /* LIBXML_ICU_ENABLED */ |
| }; |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| #include <libxml/tree.h> |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* |
| * Interfaces for encoding handlers. |
| */ |
| XMLPUBFUN void XMLCALL |
| xmlInitCharEncodingHandlers (void); |
| XMLPUBFUN void XMLCALL |
| xmlCleanupCharEncodingHandlers (void); |
| XMLPUBFUN void XMLCALL |
| xmlRegisterCharEncodingHandler (xmlCharEncodingHandlerPtr handler); |
| XMLPUBFUN xmlCharEncodingHandlerPtr XMLCALL |
| xmlGetCharEncodingHandler (xmlCharEncoding enc); |
| XMLPUBFUN xmlCharEncodingHandlerPtr XMLCALL |
| xmlFindCharEncodingHandler (const char *name); |
| XMLPUBFUN xmlCharEncodingHandlerPtr XMLCALL |
| xmlNewCharEncodingHandler (const char *name, |
| xmlCharEncodingInputFunc input, |
| xmlCharEncodingOutputFunc output); |
| |
| /* |
| * Interfaces for encoding names and aliases. |
| */ |
| XMLPUBFUN int XMLCALL |
| xmlAddEncodingAlias (const char *name, |
| const char *alias); |
| XMLPUBFUN int XMLCALL |
| xmlDelEncodingAlias (const char *alias); |
| XMLPUBFUN const char * XMLCALL |
| xmlGetEncodingAlias (const char *alias); |
| XMLPUBFUN void XMLCALL |
| xmlCleanupEncodingAliases (void); |
| XMLPUBFUN xmlCharEncoding XMLCALL |
| xmlParseCharEncoding (const char *name); |
| XMLPUBFUN const char * XMLCALL |
| xmlGetCharEncodingName (xmlCharEncoding enc); |
| |
| /* |
| * Interfaces directly used by the parsers. |
| */ |
| XMLPUBFUN xmlCharEncoding XMLCALL |
| xmlDetectCharEncoding (const unsigned char *in, |
| int len); |
| |
| XMLPUBFUN int XMLCALL |
| xmlCharEncOutFunc (xmlCharEncodingHandler *handler, |
| xmlBufferPtr out, |
| xmlBufferPtr in); |
| |
| XMLPUBFUN int XMLCALL |
| xmlCharEncInFunc (xmlCharEncodingHandler *handler, |
| xmlBufferPtr out, |
| xmlBufferPtr in); |
| XMLPUBFUN int XMLCALL |
| xmlCharEncFirstLine (xmlCharEncodingHandler *handler, |
| xmlBufferPtr out, |
| xmlBufferPtr in); |
| XMLPUBFUN int XMLCALL |
| xmlCharEncCloseFunc (xmlCharEncodingHandler *handler); |
| |
| /* |
| * Export a few useful functions |
| */ |
| #ifdef LIBXML_OUTPUT_ENABLED |
| XMLPUBFUN int XMLCALL |
| UTF8Toisolat1 (unsigned char *out, |
| int *outlen, |
| const unsigned char *in, |
| int *inlen); |
| #endif /* LIBXML_OUTPUT_ENABLED */ |
| XMLPUBFUN int XMLCALL |
| isolat1ToUTF8 (unsigned char *out, |
| int *outlen, |
| const unsigned char *in, |
| int *inlen); |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __XML_CHAR_ENCODING_H__ */ |
