0<=code<=0x10ffff.
+ * @param nameChoice Selector for which name to get.
+ * @param buffer Destination address for copying the name.
+ * The name will always be zero-terminated.
+ * If there is no name, then the buffer will be set to the empty string.
+ * @param bufferLength ==sizeof(buffer)
+ * @param pErrorCode Pointer to a UErrorCode variable;
+ * check for U_SUCCESS() after u_charName()
+ * returns.
+ * @return The length of the name, or 0 if there is no name for this character.
+ * If the bufferLength is less than or equal to the length, then the buffer
+ * contains the truncated name and the returned length indicates the full
+ * length of the name.
+ * The length does not include the zero-termination.
+ *
+ * @see UCharNameChoice
+ * @see u_charFromName
+ * @see u_enumCharNames
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_charName(UChar32 code, UCharNameChoice nameChoice,
+ char *buffer, int32_t bufferLength,
+ UErrorCode *pErrorCode);
+
+/**
+ * Get the ISO 10646 comment for a character.
+ * The ISO 10646 comment is an informative field in the Unicode Character
+ * Database (UnicodeData.txt field 11) and is from the ISO 10646 names list.
+ *
+ * @param c The character (code point) for which to get the ISO comment.
+ * It must be 0<=c<=0x10ffff.
+ * @param dest Destination address for copying the comment.
+ * The comment will be zero-terminated if possible.
+ * If there is no comment, then the buffer will be set to the empty string.
+ * @param destCapacity ==sizeof(dest)
+ * @param pErrorCode Pointer to a UErrorCode variable;
+ * check for U_SUCCESS() after u_getISOComment()
+ * returns.
+ * @return The length of the comment, or 0 if there is no comment for this character.
+ * If the destCapacity is less than or equal to the length, then the buffer
+ * contains the truncated name and the returned length indicates the full
+ * length of the name.
+ * The length does not include the zero-termination.
+ *
+ * @stable ICU 2.2
+ */
+U_STABLE int32_t U_EXPORT2
+u_getISOComment(UChar32 c,
+ char *dest, int32_t destCapacity,
+ UErrorCode *pErrorCode);
+
+/**
+ * Find a Unicode character by its name and return its code point value.
+ * The name is matched exactly and completely.
+ * If the name does not correspond to a code point, pErrorCode
+ * is set to U_INVALID_CHAR_FOUND.
+ * A Unicode 1.0 name is matched only if it differs from the modern name.
+ * Unicode names are all uppercase. Extended names are lowercase followed
+ * by an uppercase hexadecimal number, and within angle brackets.
+ *
+ * @param nameChoice Selector for which name to match.
+ * @param name The name to match.
+ * @param pErrorCode Pointer to a UErrorCode variable
+ * @return The Unicode value of the code point with the given name,
+ * or an undefined value if there is no such code point.
+ *
+ * @see UCharNameChoice
+ * @see u_charName
+ * @see u_enumCharNames
+ * @stable ICU 1.7
+ */
+U_STABLE UChar32 U_EXPORT2
+u_charFromName(UCharNameChoice nameChoice,
+ const char *name,
+ UErrorCode *pErrorCode);
+
+/**
+ * Type of a callback function for u_enumCharNames() that gets called
+ * for each Unicode character with the code point value and
+ * the character name.
+ * If such a function returns FALSE, then the enumeration is stopped.
+ *
+ * @param context The context pointer that was passed to u_enumCharNames().
+ * @param code The Unicode code point for the character with this name.
+ * @param nameChoice Selector for which kind of names is enumerated.
+ * @param name The character's name, zero-terminated.
+ * @param length The length of the name.
+ * @return TRUE if the enumeration should continue, FALSE to stop it.
+ *
+ * @see UCharNameChoice
+ * @see u_enumCharNames
+ * @stable ICU 1.7
+ */
+typedef UBool UEnumCharNamesFn(void *context,
+ UChar32 code,
+ UCharNameChoice nameChoice,
+ const char *name,
+ int32_t length);
+
+/**
+ * Enumerate all assigned Unicode characters between the start and limit
+ * code points (start inclusive, limit exclusive) and call a function
+ * for each, passing the code point value and the character name.
+ * For Unicode 1.0 names, only those are enumerated that differ from the
+ * modern names.
+ *
+ * @param start The first code point in the enumeration range.
+ * @param limit One more than the last code point in the enumeration range
+ * (the first one after the range).
+ * @param fn The function that is to be called for each character name.
+ * @param context An arbitrary pointer that is passed to the function.
+ * @param nameChoice Selector for which kind of names to enumerate.
+ * @param pErrorCode Pointer to a UErrorCode variable
+ *
+ * @see UCharNameChoice
+ * @see UEnumCharNamesFn
+ * @see u_charName
+ * @see u_charFromName
+ * @stable ICU 1.7
+ */
+U_STABLE void U_EXPORT2
+u_enumCharNames(UChar32 start, UChar32 limit,
+ UEnumCharNamesFn *fn,
+ void *context,
+ UCharNameChoice nameChoice,
+ UErrorCode *pErrorCode);
+
+/**
+ * Return the Unicode name for a given property, as given in the
+ * Unicode database file PropertyAliases.txt.
+ *
+ * In addition, this function maps the property
+ * UCHAR_GENERAL_CATEGORY_MASK to the synthetic names "gcm" /
+ * "General_Category_Mask". These names are not in
+ * PropertyAliases.txt.
+ *
+ * @param property UProperty selector other than UCHAR_INVALID_CODE.
+ * If out of range, NULL is returned.
+ *
+ * @param nameChoice selector for which name to get. If out of range,
+ * NULL is returned. All properties have a long name. Most
+ * have a short name, but some do not. Unicode allows for
+ * additional names; if present these will be returned by
+ * U_LONG_PROPERTY_NAME + i, where i=1, 2,...
+ *
+ * @return a pointer to the name, or NULL if either the
+ * property or the nameChoice is out of range. If a given
+ * nameChoice returns NULL, then all larger values of
+ * nameChoice will return NULL, with one exception: if NULL is
+ * returned for U_SHORT_PROPERTY_NAME, then
+ * U_LONG_PROPERTY_NAME (and higher) may still return a
+ * non-NULL value. The returned pointer is valid until
+ * u_cleanup() is called.
+ *
+ * @see UProperty
+ * @see UPropertyNameChoice
+ * @stable ICU 2.4
+ */
+U_STABLE const char* U_EXPORT2
+u_getPropertyName(UProperty property,
+ UPropertyNameChoice nameChoice);
+
+/**
+ * Return the UProperty enum for a given property name, as specified
+ * in the Unicode database file PropertyAliases.txt. Short, long, and
+ * any other variants are recognized.
+ *
+ * In addition, this function maps the synthetic names "gcm" /
+ * "General_Category_Mask" to the property
+ * UCHAR_GENERAL_CATEGORY_MASK. These names are not in
+ * PropertyAliases.txt.
+ *
+ * @param alias the property name to be matched. The name is compared
+ * using "loose matching" as described in PropertyAliases.txt.
+ *
+ * @return a UProperty enum, or UCHAR_INVALID_CODE if the given name
+ * does not match any property.
+ *
+ * @see UProperty
+ * @stable ICU 2.4
+ */
+U_STABLE UProperty U_EXPORT2
+u_getPropertyEnum(const char* alias);
+
+/**
+ * Return the Unicode name for a given property value, as given in the
+ * Unicode database file PropertyValueAliases.txt.
+ *
+ * Note: Some of the names in PropertyValueAliases.txt can only be
+ * retrieved using UCHAR_GENERAL_CATEGORY_MASK, not
+ * UCHAR_GENERAL_CATEGORY. These include: "C" / "Other", "L" /
+ * "Letter", "LC" / "Cased_Letter", "M" / "Mark", "N" / "Number", "P"
+ * / "Punctuation", "S" / "Symbol", and "Z" / "Separator".
+ *
+ * @param property UProperty selector constant.
+ * Must be UCHAR_BINARY_START<=whichc is not a valid digit in the specified
+ * radix, -1 is returned. A character is a valid digit
+ * if at least one of the following is true:
+ * 'A' through 'Z'.
+ * In this case the value is c-'A'+10.'a' through 'z'.
+ * In this case the value is ch-'a'+10.radix is not a
+ * valid radix, or the value of digit is not a valid
+ * digit in the specified radix, the null character
+ * (U+0000) is returned.
+ *
+ * The radix argument is valid if it is greater than or
+ * equal to 2 and less than or equal to 36.
+ * The digit argument is valid if
+ * 0 <= digit < radix.
+ *
+ * If the digit is less than 10, then
+ * '0' + digit is returned. Otherwise, the value
+ * 'a' + digit - 10 is returned.
+ *
+ * Same as java.lang.Character.forDigit().
+ *
+ * @param digit the number to convert to a character.
+ * @param radix the radix.
+ * @return the char representation of the specified digit
+ * in the specified radix.
+ *
+ * @see u_digit
+ * @see u_charDigitValue
+ * @see u_isdigit
+ * @stable ICU 2.0
+ */
+U_STABLE UChar32 U_EXPORT2
+u_forDigit(int32_t digit, int8_t radix);
+
+/**
+ * Get the "age" of the code point.
+ * The "age" is the Unicode version when the code point was first
+ * designated (as a non-character or for Private Use)
+ * or assigned a character.
+ * This can be useful to avoid emitting code points to receiving
+ * processes that do not accept newer characters.
+ * The data is from the UCD file DerivedAge.txt.
+ *
+ * @param c The code point.
+ * @param versionArray The Unicode version number array, to be filled in.
+ *
+ * @stable ICU 2.1
+ */
+U_STABLE void U_EXPORT2
+u_charAge(UChar32 c, UVersionInfo versionArray);
+
+/**
+ * Gets the Unicode version information.
+ * The version array is filled in with the version information
+ * for the Unicode standard that is currently used by ICU.
+ * For example, Unicode version 3.1.1 is represented as an array with
+ * the values { 3, 1, 1, 0 }.
+ *
+ * @param versionArray an output array that will be filled in with
+ * the Unicode version number
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+u_getUnicodeVersion(UVersionInfo versionArray);
+
+/**
+ * Get the FC_NFKC_Closure property string for a character.
+ * See Unicode Standard Annex #15 for details, search for "FC_NFKC_Closure"
+ * or for "FNC": http://www.unicode.org/reports/tr15/
+ *
+ * @param c The character (code point) for which to get the FC_NFKC_Closure string.
+ * It must be 0<=c<=0x10ffff.
+ * @param dest Destination address for copying the string.
+ * The string will be zero-terminated if possible.
+ * If there is no FC_NFKC_Closure string,
+ * then the buffer will be set to the empty string.
+ * @param destCapacity ==sizeof(dest)
+ * @param pErrorCode Pointer to a UErrorCode variable.
+ * @return The length of the string, or 0 if there is no FC_NFKC_Closure string for this character.
+ * If the destCapacity is less than or equal to the length, then the buffer
+ * contains the truncated name and the returned length indicates the full
+ * length of the name.
+ * The length does not include the zero-termination.
+ *
+ * @stable ICU 2.2
+ */
+U_STABLE int32_t U_EXPORT2
+u_getFC_NFKC_Closure(UChar32 c, UChar *dest, int32_t destCapacity, UErrorCode *pErrorCode);
+
+U_CDECL_END
+
+#endif /*_UCHAR*/
+/*eof*/