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- /*******************************************************************************
- * *
- * COPYRIGHT: *
- * (C) Copyright International Business Machines Corporation, 1999 *
- * Licensed Material - Program-Property of IBM - All Rights Reserved. *
- * US Government Users Restricted Rights - Use, duplication, or disclosure *
- * restricted by GSA ADP Schedule Contract with IBM Corp. *
- * *
- *******************************************************************************/
- /*
- * ucnv.h:
- * External APIs for the ICU's codeset conversion library
- * Bertrand A. Damiba
- *
- * Modification History:
- *
- * Date Name Description
- * 04/04/99 helena Fixed internal header inclusion.
- */
-
-
- #ifndef UCNV_H
- #define UCNV_H
-
- #include "utypes.h"
- #include "ucnv_bld.h"
- #include "ucnv_err.h"
-
- U_CDECL_BEGIN
-
- typedef void (*UConverterToUCallback) (UConverter *,
- UChar **,
- const UChar *,
- const char **,
- const char *,
- int32_t* offsets,
- bool_t,
- UErrorCode *);
-
- typedef void (*UConverterFromUCallback) (UConverter *,
- char **,
- const char *,
- const UChar **,
- const UChar *,
- int32_t* offsets,
- bool_t,
- UErrorCode *);
-
- U_CDECL_END
-
-
- /**
- * Creates a UConverter object with the names specified as a C string.
- * The actual name will be resolved with the alias file.
- * if <TT>NULL</TT> is passed for the converter name, it will create one with the
- * getDefaultName return value.
- * @param converterName : name of the uconv table
- * @param err outgoing error status <TT>U_MEMORY_ALLOCATION_ERROR, TABLE_NOT_FOUND</TT>
- * @return the created Unicode converter object, or <TT>NULL</TT> if an error occured
- * @see ucnv_openU
- * @see ucnv_openCCSID
- * @see ucnv_close
- */
-
- U_CAPI
- UConverter* U_EXPORT2 ucnv_open (const char *converterName,
- UErrorCode * err);
-
-
- /**
- * Creates a Unicode converter with the names specified as unicode string. The name should be limited to
- * the ASCII-7 alphanumerics range. The actual name will be resolved with the alias file.
- * if <TT>NULL</TT> is passed for the converter name, it will create one with the
- * getDefaultName return value.
- * @param converterName : name of the uconv table in a zero terminated Unicode string
- * @param err outgoing error status <TT>U_MEMORY_ALLOCATION_ERROR, TABLE_NOT_FOUND</TT>
- * @return the created Unicode converter object, or <TT>NULL</TT> if an error occured
- * @see ucnv_open
- * @see ucnv_openCCSID
- * @see ucnv_close
- */
- U_CAPI UConverter* U_EXPORT2 ucnv_openU (const UChar * name,
- UErrorCode * err);
-
-
-
- /**
- * Creates a UConverter object using a CCSID number.
- * @param codepage : codepage # of the uconv table
- * @param platform : codepage's platform (now only <TT>IBM</TT> supported)
- * @param err error status <TT>U_MEMORY_ALLOCATION_ERROR, TABLE_NOT_FOUND</TT>
- * @return the created Unicode converter object, or <TT>NULL</TT> if and error occured
- * @see ucnv_open
- * @see ucnv_openU
- * @see ucnv_close
- */
-
- U_CAPI UConverter* U_EXPORT2 ucnv_openCCSID (int32_t codepage,
- UConverterPlatform platform,
- UErrorCode * err);
-
-
- /**
- * Deletes the unicode converter.
- * @param converter the converter object to be deleted
- * @see ucnv_open
- * @see ucnv_openU
- * @see ucnv_openCCSID
- */
- U_CAPI void U_EXPORT2 ucnv_close (UConverter * converter);
-
-
-
- /**
- * Fills in the output parameter, subChars, with the substitution characters
- * as multiple bytes.
- * @param converter: the Unicode converter
- * @param subChars: the subsitution characters
- * @param len: on input the capacity of subChars, on output the number of bytes copied to it
- * @param err: the outgoing error status code.
- * If the substitution character array is too small, an
- * <TT>U_INDEX_OUTOFBOUNDS_ERROR</TT> will be returned.
- * @see ucnv_setSubstChars
- */
-
- U_CAPI void U_EXPORT2
- ucnv_getSubstChars (const UConverter * converter,
- char *subChars,
- int8_t * len,
- UErrorCode * err);
-
- /**
- * Sets the substitution chars when converting from unicode to a codepage. The
- * substitution is specified as a string of 1-4 bytes, and may contain <TT>NULL</TT> byte.
- * The fill-in parameter err will get the error status on return.
- * @param converter the Unicode converter
- * @param subChars the substitution character byte sequence we want set
- * @param len the number of bytes in subChars
- * @param err the error status code. <TT>U_INDEX_OUTOFBOUNDS_ERROR </TT> if
- * len is bigger than the maximum number of bytes allowed in subchars
- * @see ucnv_getSubstChars
- */
-
- U_CAPI void U_EXPORT2
- ucnv_setSubstChars (UConverter * converter,
- const char *subChars,
- int8_t len,
- UErrorCode * err);
-
-
-
- /**
- * Fills in the output parameter, errBytes, with the error characters from the
- * last failing conversion.
- * @param converter: the Unicode converter
- * @param errBytes: the bytes in error
- * @param len: on input the capacity of errBytes, on output the number of bytes copied to it
- * @param err: the outgoing error status code.
- * If the substitution character array is too small, an
- * <TT>U_INDEX_OUTOFBOUNDS_ERROR</TT> will be returned.
- */
-
- U_CAPI void U_EXPORT2
- ucnv_getInvalidChars (const UConverter * converter,
- char *errBytes,
- int8_t * len,
- UErrorCode * err);
-
-
- /**
- * Fills in the output parameter, errChars, with the error characters from the
- * last failing conversion.
- * @param converter: the Unicode converter
- * @param errUChars: the bytes in error
- * @param len: on input the capacity of errUChars, on output the number of UChars copied to it
- * @param err: the outgoing error status code.
- * If the substitution character array is too small, an
- * <TT>U_INDEX_OUTOFBOUNDS_ERROR</TT> will be returned.
- */
-
- U_CAPI void U_EXPORT2
- ucnv_getInvalidUChars (const UConverter * converter,
- char *errUChars,
- int8_t * len,
- UErrorCode * err);
-
- /**
- * Resets the state of stateful conversion to the default state. This is used
- * in the case of error to restart a conversion from a known default state.
- * it will also empty the internal output buffers.
- * @param converter the Unicode converter
- */
-
- U_CAPI void U_EXPORT2
- ucnv_reset (UConverter * converter);
-
- /**
- * Returns the maximum length of bytes used by a character. This varies between 1 and 4
- * @param converter the Unicode converter
- * @return the maximum number of bytes allowed by this particular converter
- * @see ucnv_getMinCharSize
- */
- U_CAPI int8_t U_EXPORT2
- ucnv_getMaxCharSize (const UConverter * converter);
-
-
- /**
- * Returns the minimum byte length for characters in this codepage. This is either
- * 1 or 2 for all supported codepages.
- * @param converter the Unicode converter
- * @return the minimum number of bytes allowed by this particular converter
- * @see ucnv_getMaxCharSize
- */
- U_CAPI int8_t U_EXPORT2
- ucnv_getMinCharSize (const UConverter * converter);
-
-
- /**
- * Returns the display name of the converter passed in based on the Locale passed in,
- * in the case the locale contains no display name, the internal ASCII name will be
- * filled in.
- * @param converter the Unicode converter.
- * @param displayLocale is the specific Locale we want to localised for
- * @param displayName user provided buffer to be filled in
- * @param displayNameCapacty size of displayName Buffer
- * @param err: outgoing error code.
- * @return displayNameLength number of UChar needed in displayName
- * @see ucnv_getName
- */
- U_CAPI
- int32_t U_EXPORT2 ucnv_getDisplayName (const UConverter * converter,
- const char *displayLocale,
- UChar * displayName,
- int32_t displayNameCapacity,
- UErrorCode * err);
-
- /**
- * Gets the name of the converter (zero-terminated).
- * the name will be the internal name of the converter, the lifetime of the returned
- * string will be that of the converter passed to this function.
- * @param converter the Unicode converter
- * @param err UErrorCode status
- * @return the internal name of the converter
- * @see ucnv_getDisplayName
- */
- U_CAPI
- const char * U_EXPORT2 ucnv_getName (const UConverter * converter, UErrorCode * err);
-
-
- /**
- * Gets a codepage number associated with the converter. This is not guaranteed
- * to be the one used to create the converter. Some converters do not represent
- * IBM registered codepages and return zero for the codepage number.
- * The error code fill-in parameter indicates if the codepage number is available.
- * @param converter the Unicode converter
- * @param err the error status code.
- * the converter is <TT>NULL</TT> or if converter's data table is <TT>NULL</TT>.
- * @return If any error occurrs, -1 will be returned otherwise, the codepage number
- * will be returned
- */
- U_CAPI int32_t U_EXPORT2
- ucnv_getCCSID (const UConverter * converter,
- UErrorCode * err);
-
- /**
- * Gets a codepage platform associated with the converter. Currently, only <TT>IBM</TT> is supported
- * The error code fill-in parameter indicates if the codepage number is available.
- * @param converter the Unicode converter
- * @param err the error status code.
- * the converter is <TT>NULL</TT> or if converter's data table is <TT>NULL</TT>.
- * @return The codepage platform
- */
- U_CAPI UConverterPlatform U_EXPORT2
- ucnv_getPlatform (const UConverter * converter,
- UErrorCode * err);
-
- /**
- *Gets the type of conversion associated with the converter
- * e.g. SBCS, MBCS, DBCS, UTF8, UTF16_BE, UTF16_LE, ISO_2022, EBCDIC_STATEFUL, LATIN_1
- * @param converter: a valid, opened converter
- * @return the type of the converter
- */
- U_CAPI UConverterType U_EXPORT2
- ucnv_getType (const UConverter * converter);
-
- /**
- *Gets the "starter" bytes for the converters of type MBCS
- *will fill in an <TT>U_ILLEGAL_ARGUMENT_ERROR</TT> if converter passed in
- *is not MBCS.
- *fills in an array of boolean, with the value of the byte as offset to the array.
- *At return, if TRUE is found in at offset 0x20, it means that the byte 0x20 is a starter byte
- *in this converter.
- * @param converter: a valid, opened converter of type MBCS
- * @param starters: an array of size 256 to be filled in
- * @param err: an array of size 256 to be filled in
- * @see ucnv_getType
- */
- U_CAPI void U_EXPORT2 ucnv_getStarters(const UConverter* converter,
- bool_t starters[256],
- UErrorCode* err);
-
-
- /**
- * Gets the current calback function used by the converter when illegal or invalid sequence found.
- * @param converter the unicode converter
- * @return a pointer to the callback function
- * @see ucnv_setToUCallBack
- */
- U_CAPI UConverterToUCallback U_EXPORT2
- ucnv_getToUCallBack (const UConverter * converter);
-
- /**
- * Gets the current callback function used by the converter when illegal or invalid sequence found.
- * @param converter the unicode converter
- * @return a pointer to the callback function
- * @see ucnv_setFromUCallBack
- */
- U_CAPI UConverterFromUCallback U_EXPORT2
- ucnv_getFromUCallBack (const UConverter * converter);
-
- /**
- * Gets the current callback function used by the converter when illegal or invalid sequence found
- * @param converter the unicode converter
- * @param action the callback function we want to set.
- * @param err The error code status
- * @return the previously assigned callback function pointer
- * @see ucnv_getToUCallBack
- */
- U_CAPI UConverterToUCallback U_EXPORT2
- ucnv_setToUCallBack (UConverter * converter,
- UConverterToUCallback action,
- UErrorCode * err);
-
- /**
- * Gets the current callback function used by the converter when illegal or invalid sequence found
- * @param converter the unicode converter
- * @param action the callback function we want to set.
- * @param err The error code status
- * @return the previously assigned callback function pointer
- * @see ucnv_getFromUCallBack
- */
- U_CAPI UConverterFromUCallback U_EXPORT2
- ucnv_setFromUCallBack (UConverter * converter,
- UConverterFromUCallback action,
- UErrorCode * err);
-
-
- /**
- * Transcodes an array of unicode characters to an array of codepage characters.
- * The source pointer is an I/O parameter, it starts out pointing where the function is
- * to begin transcoding, and ends up pointing after the first sequence of the bytes
- * that it encounters that are semantically invalid.
- * if ucnv_setToUCallBack is called with an action other than <TT>STOP</TT>
- * before a call is made to this API, <TT>consumed</TT> and <TT>source</TT> should point to the same place
- * (unless <TT>target</TT> ends with an imcomplete sequence of bytes and <TT>flush</TT> is <TT>FALSE</TT>).
- * the <TT>target</TT> buffer buffer needs to be a least the size of the maximum # of bytes per characters
- * allowed by the target codepage.
- * @param converter the Unicode converter
- * @param converter the Unicode converter
- * @param target : I/O parameter. Input : Points to the beginning of the buffer to copy
- * codepage characters to. Output : points to after the last codepage character copied
- * to <TT>target</TT>.
- * @param targetLimit the pointer to the end of the <TT>target</TT> array
- * @param source the source Unicode character array
- * @param sourceLimit the pointer to the end of the source array
- * @param offsets if NULL is passed, nothing will happen to it, otherwise it needs to have the same number
- * of allocated cells as <TT>target</TT>. Will fill in offsets from target to source pointer
- * e.g: <TT>offsets[3]</TT> is equal to 6, it means that the <TT>target[3]</TT> was a result of transcoding <TT>source[6]</TT>
- * For output data carried across calls -1 will be placed for offsets.
- * @param flush <TT>TRUE</TT> if the buffer is the last buffer of the conversion interation
- * and the conversion will finish with this call, FALSE otherwise.
- * @param err the error status. <TT>U_ILLEGAL_ARGUMENT_ERROR</TT> will be returned if the
- * converter is <TT>NULL</TT>.
- * @see ucnv_fromUChars
- * @see ucnv_convert
- * @see ucnv_getMinCharSize
- * @see ucnv_setToUCallBack
- */
-
- U_CAPI
- void U_EXPORT2 ucnv_fromUnicode (UConverter * converter,
- char **target,
- const char *targetLimit,
- const UChar ** source,
- const UChar * sourceLimit,
- int32_t* offsets,
- bool_t flush,
- UErrorCode * err);
-
-
- /**
- * Converts an array of codepage characters into an array of unicode characters.
- * The source pointer is an I/O parameter, it starts out pointing at the place
- * to begin translating, and ends up pointing after the first sequence of the bytes
- * that it encounters that are semantically invalid.
- * if ucnv_setFromUCallBack is called with an action other than STOP
- * before a call is made to this API, consumed and source should point to the same place
- * (unless target ends with an imcomplete sequence of bytes and flush is FALSE).
- * @param converter the Unicode converter
- * @param target : I/O parameter. Input : Points to the beginning of the buffer to copy
- * Unicode characters to. Output : points to after the last UChar copied to target.
- * @param targetLimit the pointer to the end of the target array
- * @param source the source codepage character array
- * @param sourceLimit the pointer to the end of the source array
- * @param offsets if NULL is passed, nothing will happen to it, otherwise it needs to have the same number
- * of allocated cells as <TT>target</TT>. Will fill in offsets from target to source pointer
- * e.g: <TT>offsets[3]</TT> is equal to 6, it means that the <TT>target[3]</TT> was a result of transcoding <TT>source[6]</TT>
- * For output data carried across calls -1 will be placed for offsets.
- * @param flush TRUE if the buffer is the last buffer and the conversion will finish
- * in this call, FALSE otherwise.
- * @param err the error code status <TT>U_ILLEGAL_ARGUMENT_ERROR</TT> will be returned if the
- * converter is <TT>NULL</TT>, or if <TT>targetLimit</TT> and <TT>sourceLimit</TT> are misaligned.
- * @see ucnv_toUChars
- * @see ucnv_getNextUChar
- * @see ucnv_convert
- * @see ucnv_setFromUCallBack
- */
-
- U_CAPI
- void U_EXPORT2 ucnv_toUnicode (UConverter * converter,
- UChar ** target,
- const UChar * targetLimit,
- const char **source,
- const char *sourceLimit,
- int32_t* offsets,
- bool_t flush,
- UErrorCode * err);
-
-
- /**
- * Transcodes the source Unicode string to the target string in a codepage encoding
- * with the specified Unicode converter. For example, if a Unicode to/from JIS
- * converter is specified, the source string in Unicode will be transcoded to JIS
- * encoding. The result will be stored in JIS encoding.
- * if any problems during conversion are encountered it will SUBSTITUTE with the default (initial)
- * substitute characters.
- * This function is a more convenient but less efficient version of \Ref{ucnv_fromUnicode}.
- * @param converter the Unicode converter
- * @param source the <TT>source</TT> Unicode string (zero Terminated)
- * @param target the <TT>target</TT> string in codepage encoding (<STRONG>not zero-terminated</STRONG> because some
- * codepage do not use '\0' as a string terminator
- * @param targetCapacity Input the number of bytes available in the <TT>target</TT> buffer
- * @param err the error status code.
- * <TT>U_INDEX_OUTOFBOUNDS_ERROR</TT> will be returned if the
- * the # of bytes provided are not enough for transcoding.
- * <TT>U_ILLEGAL_ARGUMENT_ERROR</TT> is returned if the converter is <TT>NULL</TT> or the source or target string is empty.
- * <TT>U_BUFFER_OVERFLOW_ERROR</TT> when <TT>targetSize</TT> turns out to be bigger than <TT>targetCapacity</TT>
- * @return number of bytes needed in target, regardless of <TT>targetCapacity</TT>
- * @see ucnv_fromUnicode
- * @see ucnv_convert
- */
- U_CAPI
- int32_t U_EXPORT2 ucnv_fromUChars (const UConverter * converter,
- char *target,
- int32_t targetCapacity,
- const UChar * source,
- UErrorCode * err);
-
-
-
-
-
- /**
- * Transcode the source string in codepage encoding to the target string in
- * Unicode encoding. For example, if a Unicode to/from JIS
- * converter is specified, the source string in JIS encoding will be transcoded
- * to Unicode and placed into a provided target buffer.
- * if any problems during conversion are encountered it will SUBSTITUTE with the Unicode REPLACEMENT char
- * We recomment, the size of the target buffer needs to be at least as long as the maximum # of bytes per char
- * in this character set.
- * A zero-terminator will be placed at the end of the target buffer
- * This function is a more convenient but less efficient version of \Ref{ucnv_toUnicode}.
- * @param converter the Unicode converter
- * @param source the source string in codepage encoding
- * @param target the target string in Unicode encoding
- * @param targetCapacity capacity of the target buffer
- * @param sourceSize : Number of bytes in <TT>source</TT> to be transcoded
- * @param err the error status code
- * <TT>U_MEMORY_ALLOCATION_ERROR</TT> will be returned if the
- * the internal process buffer cannot be allocated for transcoding.
- * <TT>U_ILLEGAL_ARGUMENT_ERROR</TT> is returned if the converter is <TT>NULL</TT> or
- * if the source or target string is empty.
- * <TT>U_BUFFER_OVERFLOW_ERROR</TT> when the input buffer is prematurely exhausted and targetSize non-<TT>NULL</TT>.
- * @return the number of UChar needed in target (including the zero terminator)
- * @see ucnv_getNextUChar
- * @see ucnv_toUnicode
- * @see ucnv_convert
- */
- U_CAPI
- int32_t U_EXPORT2 ucnv_toUChars (const UConverter * converter,
- UChar * target,
- int32_t targetCapacity,
- const char *source,
- int32_t sourceSize,
- UErrorCode * err);
-
- /********************************
- * Will convert a codepage buffer one character at a time.
- * This function was written to be efficient when transcoding small amounts of data at a time.
- * In that case it will be more efficient than \Ref{ucnv_toUnicode}.
- * When converting large buffers use \Ref{ucnv_toUnicode}.
- *@param converter an open UConverter
- *@param source the address of a pointer to the codepage buffer, will be updated to point after
- *the bytes consumed in the conversion call.
- *@param points to the end of the input buffer
- *@param err fills in error status (see ucnv_toUnicode)
- *@return a UChar resulting from the partial conversion of source
- *@see ucnv_toUnicode
- *@see ucnv_toUChars
- *@see ucnv_convert
- */
- U_CAPI
- UChar U_EXPORT2 ucnv_getNextUChar (UConverter * converter,
- const char **source,
- const char *sourceLimit,
- UErrorCode * err);
-
-
- /**************************
- * Will convert a sequence of bytes from one codepage to another.
- * This is <STRONG>NOT AN EFFICIENT</STRONG> way to transcode.
- * use \Ref{ucnv_toUnicode} and \Ref{ucnv_fromUnicode} for efficiency
- * @param toConverterName: The name of the converter that will be used to encode the output buffer
- * @param fromConverterName: The name of the converter that will be used to decode the input buffer
- * @param target: Pointer to the output buffer to write to
- * @param targetCapacity: on input contains the capacity of target
- * @param source: Pointer to the input buffer
- * @param sourceLength: on input contains the capacity of source
- * @param err: fills in an error status
- * @return will be filled in with the number of bytes needed in target
- * @see ucnv_fromUnicode
- * @see ucnv_toUnicode
- * @see ucnv_fromUChars
- * @see ucnv_toUChars
- * @see ucnv_getNextUChar
- */
- U_CAPI
- int32_t U_EXPORT2 ucnv_convert (const char *toConverterName,
- const char *fromConverterName,
- char *target,
- int32_t targetCapacity,
- const char *source,
- int32_t sourceLength,
- UErrorCode * err);
-
- /**
- * SYSTEM API
- * Iterates through every cached converter and frees all the unused ones.
- * @return the number of cached converters successfully deleted
- */
- U_CAPI int32_t U_EXPORT2 ucnv_flushCache (void);
-
-
- /**
- * provides a string containing the internal name (based on the alias file) of the converter.
- * given an index.
- * @param index the number of converters available on the system (<TT>[0..ucnv_countAvaiable()]</TT>)
- * @return a pointer a string (library owned), or <TT>NULL</TT> if the index is out of bounds.
- * @see ucnv_countAvailable
- */
- U_CAPI
- const char * U_EXPORT2 ucnv_getAvailableName (int32_t index);
-
- /**
- * returns the number of available converters.
- * @return the number of available converters
- * @see ucnv_getAvailableName
- */
- U_CAPI int32_t U_EXPORT2 ucnv_countAvailable (void);
-
- /**
- * returns the current default converter name.
- * @return returns the current default converter name
- * @see ucnv_setDefaultName
- */
- U_CAPI const char * U_EXPORT2 ucnv_getDefaultName (void);
-
- /**
- * sets the current default converter name.
- * The lifetime of the return ptr is that of the library
- * @param name: the converter name you want as default (has to appear in alias file)
- * @see ucnv_getDefaultName
- *
- */
- U_CAPI void U_EXPORT2 ucnv_setDefaultName (const char *name);
-
-
- #endif
- /*_UCNV*/
-