xml/libxml2libs/inc/libxml2/libxml2_encoding.h
changeset 0 e35f40988205
child 25 417699dc19c9
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/xml/libxml2libs/inc/libxml2/libxml2_encoding.h	Thu Dec 17 09:29:21 2009 +0200
@@ -0,0 +1,228 @@
+/*
+ * 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.
+ *
+ * Copy: See Copyright for the status of this software.
+ *
+ * Author: Daniel Veillard
+ * Portion Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 
+ */
+
+/** @file
+@publishedAll
+@released
+*/
+
+#ifndef XML_CHAR_ENCODING_H
+#define XML_CHAR_ENCODING_H
+
+//#include "libxml/Libxml2_xmlversion.h" // enable this when dependency on tree.h is removed
+#include "libxml2_tree.h"
+
+#ifdef LIBXML_ICONV_ENABLED
+#include <iconv.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:
+ * @param out a pointer to an array of bytes to store the UTF-8 result
+ * @param outlen the length of out
+ * @param in a pointer to an array of chars in the original encoding
+ * @param 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:
+ * @param out a pointer to an array of bytes to store the result
+ * @param outlen the length of out
+ * @param in a pointer to an array of UTF-8 chars
+ * @param 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.
+ */
+
+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 __cplusplus
+//}
+//#endif
+//#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.
+ */
+#ifndef XMLENGINE_EXCLUDE_UNUSED
+XMLPUBFUN int XMLCALL xmlAddEncodingAlias(const char *name, const char *alias);
+XMLPUBFUN int XMLCALL xmlDelEncodingAlias(const char *alias);
+#endif
+
+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
+ */
+XMLPUBFUN int XMLCALL
+        UTF8Toisolat1                   (unsigned char *out,
+                                         int *outlen,
+                                         const unsigned char *in,
+                                         int *inlen);
+XMLPUBFUN int XMLCALL
+        isolat1ToUTF8                   (unsigned char *out,
+                                         int *outlen,
+                                         const unsigned char *in,
+                                         int *inlen);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* XML_CHAR_ENCODING_H */
+