Tizen Native API
5.0
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The Uchar module provides low-level access to the Unicode Character Database.
#include <utils_i18n.h>
The Uchar module provides low-level access to the Unicode Character Database.
Gets the property value of 'east asian width' among an enumerated property, and the unicode allocation block that contains the character.
int ret = I18N_ERROR_NONE; i18n_uchar32 code_point = 0; int property_value = 0; i18n_uchar_u_east_asian_width_e east_asian_width = I18N_UCHAR_U_EA_NEUTRAL; i18n_uchar_ublock_code_e block_code = I18N_UCHAR_UBLOCK_NO_BLOCK; // How to get the east asian width type for 's' code_point = 0x73; // 's' ret = i18n_uchar_get_int_property_value(code_point, I18N_UCHAR_EAST_ASIAN_WIDTH, &property_value); if (ret != I18N_ERROR_NONE) { dlog_print(DLOG_INFO, LOG_TAG, "Error occured!!\n"); } else { east_asian_width = (i18n_uchar_u_east_asian_width_e)property_value; dlog_print(DLOG_INFO, LOG_TAG, "East Asian Width Type for ( %.4x ) is ( %d )\n", code_point, east_asian_width); // East Asian Width Type for ( 0073 ) is ( 4 ) which is I18N_UCHAR_U_EA_NARROW } // How to get the block code for 's' ret = i18n_uchar_get_ublock_code(code_point, &block_code); if (ret != I18N_ERROR_NONE) { dlog_print(DLOG_INFO, LOG_TAG, "Error occured!!\n"); } else { dlog_print(DLOG_INFO, LOG_TAG, "block name for ( %.4x ) is ( %d )\n", code_point, block_code); // block code for ( 0073 ) is ( 1 ) which is I18N_UCHAR_UBLOCK_BASIC_LATIN } // How to get the east asian width type for 'sung' as ideographs code_point = 0x661F; // 'sung' as ideographs ret = i18n_uchar_get_int_property_value(code_point, I18N_UCHAR_EAST_ASIAN_WIDTH, &property_value); if (ret != I18N_ERROR_NONE) { dlog_print(DLOG_INFO, LOG_TAG, "Error occured!!\n"); } else { east_asian_width = (i18n_uchar_u_east_asian_width_e)property_value; dlog_print(DLOG_INFO, LOG_TAG, "East Asian Width Type for ( %.4x ) is ( %d )\n", code_point, east_asian_width); // East Asian Width Type for ( 661f ) is ( 5 ) which is I18N_UCHAR_U_EA_WIDE } // How to get the block code for 'sung' as ideographs ret = i18n_uchar_get_ublock_code(code_point, &block_code); if (ret != I18N_ERROR_NONE) { dlog_print(DLOG_INFO, LOG_TAG, "Error occured!!\n"); } else { dlog_print(DLOG_INFO, LOG_TAG, "block name for ( %.4x ) is ( %d )\n", code_point, block_code); // block code for ( 661f ) is ( 71 ) which is I18N_UCHAR_UBLOCK_CJK_UNIFIED_IDEOGRAPHS } // How to get the east asian width type for 'sung' as hangul code_point = 0xC131; // 'sung' as hangul ret = i18n_uchar_get_int_property_value(code_point, I18N_UCHAR_EAST_ASIAN_WIDTH, &property_value); if (ret != I18N_ERROR_NONE) { dlog_print(DLOG_INFO, LOG_TAG, "Error occured!!\n"); } else { east_asian_width = (i18n_uchar_u_east_asian_width_e)property_value; dlog_print(DLOG_INFO, LOG_TAG, "East Asian Width Type for ( %.4x ) is ( %d )\n", code_point, east_asian_width); // East Asian Width Type for ( c131 ) is ( 5 ) which is I18N_UCHAR_U_EA_WIDE } // How to get the block code for 'sung' as hangul ret = i18n_uchar_get_ublock_code(code_point, &block_code); if (ret != I18N_ERROR_NONE) { dlog_print(DLOG_INFO, LOG_TAG, "Error occured!!\n"); } else { dlog_print(DLOG_INFO, LOG_TAG, "block name for ( %.4x ) is ( %d )\n", code_point, block_code); // block code for ( c131 ) is ( 74 ) which is I18N_UCHAR_UBLOCK_HANGUL_SYLLABLES }
Functions | |
int | i18n_uchar_get_int_property_value (i18n_uchar32 c, i18n_uchar_uproperty_e which, int32_t *property_val) |
Gets the property value for an enumerated property for a code point. | |
int | i18n_uchar_get_ublock_code (i18n_uchar32 c, i18n_uchar_ublock_code_e *block_val) |
Gets the Unicode allocation block that contains the character. | |
int | i18n_uchar_has_binary_property (i18n_uchar32 c, i18n_uchar_uproperty_e which, i18n_ubool *has_binary_property) |
Checks a binary unicode property for a code point. | |
int | i18n_uchar_is_alphabetic (i18n_uchar32 c, i18n_ubool *is_alphabetic) |
Checks if a code point has the Alphabetic Unicode unicode property. | |
int | i18n_uchar_is_lowercase (i18n_uchar32 c, i18n_ubool *is_lowercase) |
Checks if a code point has the Lowercase Unicode property. | |
int | i18n_uchar_is_uppercase (i18n_uchar32 c, i18n_ubool *is_uppercase) |
Checks if a code point has the Uppercase Unicode property. | |
int | i18n_uchar_is_white_space (i18n_uchar32 c, i18n_ubool *is_white_space) |
Checks if a code point has the White_Space Unicode property. | |
int | i18n_uchar_get_int_property_min_value (i18n_uchar_uproperty_e which, int32_t *int_min_value) |
Gets the minimum value for an enumerated/integer/binary Unicode property. | |
int | i18n_uchar_get_int_property_max_value (i18n_uchar_uproperty_e which, int32_t *int_max_value) |
Gets the maximum value for an enumerated/integer/binary Unicode property. | |
int | i18n_uchar_get_numeric_value (i18n_uchar32 c, double *numeric_val) |
Gets the numeric value for a Unicode code point as defined in the Unicode Character Database. | |
int | i18n_uchar_is_lower (i18n_uchar32 c, i18n_ubool *is_lower) |
Determines whether the specified code point has the general category "Ll" (lowercase letter). | |
int | i18n_uchar_is_upper (i18n_uchar32 c, i18n_ubool *is_upper) |
Determines whether the specified code point has the general category "Lu" (uppercase letter). | |
int | i18n_uchar_is_title (i18n_uchar32 c, i18n_ubool *is_title) |
Determines whether the specified code point is a titlecase letter. | |
int | i18n_uchar_is_digit (i18n_uchar32 c, i18n_ubool *is_digit) |
Determines whether the specified code point is a digit character according to Java. | |
int | i18n_uchar_is_alpha (i18n_uchar32 c, i18n_ubool *is_alpha) |
Determines whether the specified code point is a letter character. | |
int | i18n_uchar_is_alnum (i18n_uchar32 c, i18n_ubool *is_alnum) |
Determines whether the specified code point is an alphanumeric character (letter or digit) according to Java. | |
int | i18n_uchar_is_xdigit (i18n_uchar32 c, i18n_ubool *is_xdigit) |
Determines whether the specified code point is a hexadecimal digit. | |
int | i18n_uchar_is_punct (i18n_uchar32 c, i18n_ubool *is_punct) |
Determines whether the specified code point is a punctuation character. | |
int | i18n_uchar_is_graph (i18n_uchar32 c, i18n_ubool *is_graph) |
Determines whether the specified code point is a "graphic" character (printable, excluding, spaces). | |
int | i18n_uchar_is_blank (i18n_uchar32 c, i18n_ubool *is_blank) |
Determines whether the specified code point is a "blank" or "horizontal space", a character that visibly separates words on a line. | |
int | i18n_uchar_is_defined (i18n_uchar32 c, i18n_ubool *is_defined) |
Determines whether the specified code point is "defined", which usually means that it is assigned a character. | |
int | i18n_uchar_is_space (i18n_uchar32 c, i18n_ubool *is_space) |
Determines if the specified character is a space character or not. | |
int | i18n_uchar_is_java_space_char (i18n_uchar32 c, i18n_ubool *is_java_space_char) |
Determines if the specified code point is a space character according to Java. | |
int | i18n_uchar_is_whitespace (i18n_uchar32 c, i18n_ubool *is_whitespace) |
Determines if the specified code point is a whitespace character according to Java/ICU. | |
int | i18n_uchar_is_control (i18n_uchar32 c, i18n_ubool *is_control) |
Determines whether the specified code point is a control character (as defined by this function). | |
int | i18n_uchar_is_iso_control (i18n_uchar32 c, i18n_ubool *is_iso_control) |
Determines whether the specified code point is an ISO control code. | |
int | i18n_uchar_is_printable (i18n_uchar32 c, i18n_ubool *is_printable) |
Determines whether the specified code point is a printable character. | |
int | i18n_uchar_is_base (i18n_uchar32 c, i18n_ubool *is_base) |
Determines whether the specified code point is a base character. | |
int | i18n_uchar_char_direction (i18n_uchar32 c, i18n_uchar_direction_e *direction) |
Returns the bidirectional category value for the code point. | |
int | i18n_uchar_is_mirrored (i18n_uchar32 c, i18n_ubool *is_mirrored) |
Determines whether the code point has the Bidi_Mirrored property. | |
int | i18n_uchar_char_mirror (i18n_uchar32 c, i18n_uchar32 *char_mirror) |
Maps the specified character to a "mirror-image" character. | |
int | i18n_uchar_get_bidi_paired_bracket (i18n_uchar32 c, i18n_uchar32 *bidi_paired_bracket) |
Maps the specified character to its paired bracket character. | |
int | i18n_uchar_char_type (i18n_uchar32 c, int8_t *char_type) |
Returns the general category value for the code point. | |
int | i18n_uchar_enum_char_types (i18n_uchar_enum_char_type_cb cb, const void *user_data) |
Enumerates efficiently all code points with their unicode general categories. | |
int | i18n_uchar_get_combining_class (i18n_uchar32 c, uint8_t *combining_class) |
Returns the combining class of the code point. | |
int | i18n_uchar_char_digit_value (i18n_uchar32 c, int32_t *char_digit_value) |
Returns the decimal digit value of a decimal digit character. | |
int | i18n_uchar_char_name (i18n_uchar32 code, i18n_uchar_u_char_name_choice_e name_choice, char *buffer, int32_t buffer_length, int32_t *name_length) |
Retrieves the name of a unicode character. | |
int | i18n_uchar_char_from_name (i18n_uchar_u_char_name_choice_e name_choice, const char *name, i18n_uchar32 *char_from_name) |
Finds a unicode character by its name and return its code point value. | |
int | i18n_uchar_enum_char_names (i18n_uchar32 start, i18n_uchar32 limit, i18n_uchar_enum_char_name_cb cb, void *user_data, i18n_uchar_u_char_name_choice_e name_choice) |
Enumerates 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. | |
int | i18n_uchar_get_property_name (i18n_uchar_uproperty_e property, i18n_uchar_u_property_name_choice_e name_choice, const char **name) |
Returns the unicode name for a given property, as given in the unicode database file. | |
int | i18n_uchar_get_property_enum (const char *alias, i18n_uchar_uproperty_e *property_enum) |
Returns the i18n_uchar_uproperty_e enum for a given property name, as specified in the unicode database. | |
int | i18n_uchar_get_property_value_name (i18n_uchar_uproperty_e property, int32_t value, i18n_uchar_u_property_name_choice_e name_choice, const char **name) |
Returns the unicode name for a given property value. | |
int | i18n_uchar_get_property_value_enum (i18n_uchar_uproperty_e property, const char *alias, int32_t *value_enum) |
Returns the property value integer for a given value name, as specified in the unicode database. | |
int | i18n_uchar_is_id_start (i18n_uchar32 c, i18n_ubool *is_id_start) |
Determines if the specified character is permissible as the first character in an identifier according to unicode (the unicode standard, version 3.0, chapter 5.16 identifiers). | |
int | i18n_uchar_is_id_part (i18n_uchar32 c, i18n_ubool *is_id_part) |
Determines if the specified character is permissible in an identifier according to Java. | |
int | i18n_uchar_is_id_ignorable (i18n_uchar32 c, i18n_ubool *is_id_ignorable) |
Determines if the specified character should be regarded as an ignorable character in an identifier, according to java. | |
int | i18n_uchar_is_java_id_start (i18n_uchar32 c, i18n_ubool *is_java_id_start) |
Determines if the specified character is permissible as the first character in a java identifier. | |
int | i18n_uchar_is_java_id_part (i18n_uchar32 c, i18n_ubool *is_java_id_part) |
Determines if the specified character is permissible in a java identifier. | |
int | i18n_uchar_to_lower (i18n_uchar32 c, i18n_uchar32 *lower) |
Maps the given character to its lowercase equivalent. | |
int | i18n_uchar_to_upper (i18n_uchar32 c, i18n_uchar32 *upper) |
Maps the given character to its uppercase equivalent. | |
int | i18n_uchar_to_title (i18n_uchar32 c, i18n_uchar32 *title) |
Maps the given character to its titlecase equivalent. | |
int | i18n_uchar_fold_case (i18n_uchar32 c, uint32_t options, i18n_uchar32 *code_point) |
Maps the given character to its case folding equivalent. | |
int | i18n_uchar_digit (i18n_uchar32 ch, int8_t radix, int32_t *numerical_value) |
Returns the decimal digit value of the code point in the specified radix. | |
int | i18n_uchar_for_digit (int32_t digit, int8_t radix, i18n_uchar32 *representation) |
Determines the character representation for a specific digit in the specified radix. | |
int | i18n_uchar_char_age (i18n_uchar32 c, i18n_uversion_info version_array) |
Gets the "age" of the code point. | |
int | i18n_uchar_get_unicode_version (i18n_uversion_info version_array) |
Gets the unicode version information. | |
int | i18n_uchar_get_fc_nfkc_closure (i18n_uchar32 c, i18n_uchar *dest, int32_t dest_capacity, int32_t *length) |
Gets the FC_NFKC_Closure property string for a character. | |
Typedefs | |
typedef uint16_t | i18n_uchar |
i18n_uchar. | |
typedef int32_t | i18n_uchar32 |
i18n_uchar32. | |
typedef int8_t | i18n_ubool |
i18n_ubool. | |
typedef i18n_ubool(* | i18n_uchar_enum_char_type_cb )(const void *context, i18n_uchar32 start, i18n_uchar32 limit, i18n_uchar_category_e type) |
Callback from i18n_uchar_enum_char_types(), is called for each contiguous range of code points c (where start <= c < limit ) with the same Unicode general category ("character type"). | |
typedef i18n_ubool(* | i18n_uchar_enum_char_name_cb )(void *context, i18n_uchar32 code, i18n_uchar_u_char_name_choice_e name_choice, const char *name, int32_t length) |
Type of a callback function for i18n_uchar_enum_char_name() that gets called for each Unicode character with the code point value and the character name. | |
Defines | |
#define | I18N_U_MASK(x) ((uint32_t)1 << (x)) |
#define | I18N_U_GC_CN_MASK I18N_U_MASK(I18N_UCHAR_U_GENERAL_OTHER_TYPES) |
#define | I18N_U_GC_LU_MASK I18N_U_MASK(I18N_UCHAR_U_UPPERCASE_LETTER) |
#define | I18N_U_GC_LL_MASK I18N_U_MASK(I18N_UCHAR_U_LOWERCASE_LETTER) |
#define | I18N_U_GC_LT_MASK I18N_U_MASK(I18N_UCHAR_U_TITLECASE_LETTER) |
#define | I18N_U_GC_LM_MASK I18N_U_MASK(I18N_UCHAR_U_MODIFIER_LETTER) |
#define | I18N_U_GC_LO_MASK I18N_U_MASK(I18N_UCHAR_U_OTHER_LETTER) |
#define | I18N_U_GC_MN_MASK I18N_U_MASK(I18N_UCHAR_U_NON_SPACING_MARK) |
#define | I18N_U_GC_ME_MASK I18N_U_MASK(I18N_UCHAR_U_ENCLOSING_MARK) |
#define | I18N_U_GC_MC_MASK I18N_U_MASK(I18N_UCHAR_U_COMBINING_SPACING_MARK) |
#define | I18N_U_GC_ND_MASK I18N_U_MASK(I18N_UCHAR_U_DECIMAL_DIGIT_NUMBER) |
#define | I18N_U_GC_NL_MASK I18N_U_MASK(I18N_UCHAR_U_LETTER_NUMBER) |
#define | I18N_U_GC_NO_MASK I18N_U_MASK(I18N_UCHAR_U_OTHER_NUMBER) |
#define | I18N_U_GC_ZS_MASK I18N_U_MASK(I18N_UCHAR_U_SPACE_SEPARATOR) |
#define | I18N_U_GC_ZL_MASK I18N_U_MASK(I18N_UCHAR_U_LINE_SEPARATOR) |
#define | I18N_U_GC_ZP_MASK I18N_U_MASK(I18N_UCHAR_U_PARAGRAPH_SEPARATOR) |
#define | I18N_U_GC_CC_MASK I18N_U_MASK(I18N_UCHAR_U_CONTROL_CHAR) |
#define | I18N_U_GC_CF_MASK I18N_U_MASK(I18N_UCHAR_U_FORMAT_CHAR) |
#define | I18N_U_GC_CO_MASK I18N_U_MASK(I18N_UCHAR_U_PRIVATE_USE_CHAR) |
#define | I18N_U_GC_CS_MASK I18N_U_MASK(I18N_UCHAR_U_SURROGATE) |
#define | I18N_U_GC_PD_MASK I18N_U_MASK(I18N_UCHAR_U_DASH_PUNCTUATION) |
#define | I18N_U_GC_PS_MASK I18N_U_MASK(I18N_UCHAR_U_START_PUNCTUATION) |
#define | I18N_U_GC_PE_MASK I18N_U_MASK(I18N_UCHAR_U_END_PUNCTUATION) |
#define | I18N_U_GC_PC_MASK I18N_U_MASK(I18N_UCHAR_U_CONNECTOR_PUNCTUATION) |
#define | I18N_U_GC_PO_MASK I18N_U_MASK(I18N_UCHAR_U_OTHER_PUNCTUATION) |
#define | I18N_U_GC_SM_MASK I18N_U_MASK(I18N_UCHAR_U_MATH_SYMBOL) |
#define | I18N_U_GC_SC_MASK I18N_U_MASK(I18N_UCHAR_U_CURRENCY_SYMBOL) |
#define | I18N_U_GC_SK_MASK I18N_U_MASK(I18N_UCHAR_U_MODIFIER_SYMBOL) |
#define | I18N_U_GC_SO_MASK I18N_U_MASK(I18N_UCHAR_U_OTHER_SYMBOL) |
#define | I18N_U_GC_PI_MASK I18N_U_MASK(I18N_UCHAR_U_INITIAL_PUNCTUATION) |
#define | I18N_U_GC_PF_MASK I18N_U_MASK(I18N_UCHAR_U_FINAL_PUNCTUATION) |
#define | I18N_U_GC_L_MASK (I18N_U_GC_LU_MASK|I18N_U_GC_LL_MASK|I18N_U_GC_LT_MASK|I18N_U_GC_LM_MASK|I18N_U_GC_LO_MASK) |
#define | I18N_U_GC_LC_MASK (I18N_U_GC_LU_MASK|I18N_U_GC_LL_MASK|I18N_U_GC_LT_MASK) |
#define | I18N_U_GC_M_MASK (I18N_U_GC_MN_MASK|I18N_U_GC_ME_MASK|I18N_U_GC_MC_MASK) |
#define | I18N_U_GC_N_MASK (I18N_U_GC_ND_MASK|I18N_U_GC_NL_MASK|I18N_U_GC_NO_MASK) |
#define | I18N_U_GC_Z_MASK (I18N_U_GC_ZS_MASK|I18N_U_GC_ZL_MASK|I18N_U_GC_ZP_MASK) |
#define | I18N_U_GC_C_MASK (I18N_U_GC_CN_MASK|I18N_U_GC_CC_MASK|I18N_U_GC_CF_MASK|I18N_U_GC_CO_MASK|I18N_U_GC_CS_MASK) |
#define | I18N_U_GC_P_MASK (I18N_U_GC_PD_MASK|I18N_U_GC_PS_MASK|I18N_U_GC_PE_MASK|I18N_U_GC_PC_MASK|I18N_U_GC_PO_MASK|I18N_U_GC_PI_MASK|I18N_U_GC_PF_MASK) |
#define | I18N_U_GC_S_MASK (I18N_U_GC_SM_MASK|I18N_U_GC_SC_MASK|I18N_U_GC_SK_MASK|I18N_U_GC_SO_MASK) |
#define | I18N_U_NO_NUMERIC_VALUE ((double)-123456789.) |
#define | I18N_U_GET_GC_MASK(c) I18N_U_MASK(u_charType(c)) |
#define | I18N_U_FOLD_CASE_DEFAULT 0 |
Option value for case folding: use default mappings defined in CaseFolding.txt. | |
#define | I18N_U_FOLD_CASE_EXCLUDE_SPECIAL_I 1 |
Option value for case folding: Use the modified set of mappings provided in CaseFolding.txt to handle dotted I and dotless i appropriately for Turkic languages (tr, az). Before Unicode 3.2, CaseFolding.txt contains mappings marked with 'I' that are to be included for default mappings and excluded for the Turkic-specific mappings. Unicode 3.2 CaseFolding.txt instead contains mappings marked with 'T' that are to be excluded for default mappings and included for the Turkic-specific mappings. | |
#define | I18N_USEARCH_DONE -1 |
DONE is returned by i18n_usearch_previous() and i18n_usearch_next() after all valid matches have been returned, and by, i18n_usearch_first() and i18n_usearch_last() if there are no matches at all. |
#define I18N_U_FOLD_CASE_DEFAULT 0 |
Option value for case folding: use default mappings defined in CaseFolding.txt.
#define I18N_U_FOLD_CASE_EXCLUDE_SPECIAL_I 1 |
Option value for case folding:
Use the modified set of mappings provided in CaseFolding.txt to handle dotted I and dotless i appropriately for Turkic languages (tr, az).
Before Unicode 3.2, CaseFolding.txt contains mappings marked with 'I' that are to be included for default mappings and excluded for the Turkic-specific mappings.
Unicode 3.2 CaseFolding.txt instead contains mappings marked with 'T' that are to be excluded for default mappings and included for the Turkic-specific mappings.
#define I18N_U_GC_C_MASK (I18N_U_GC_CN_MASK|I18N_U_GC_CC_MASK|I18N_U_GC_CF_MASK|I18N_U_GC_CO_MASK|I18N_U_GC_CS_MASK) |
Mask constant for multiple i18n_uchar_category_e bits (C Others).
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
U_GC_XX_MASK constants are bit flags corresponding to Unicode general category values.
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
#define I18N_U_GC_L_MASK (I18N_U_GC_LU_MASK|I18N_U_GC_LL_MASK|I18N_U_GC_LT_MASK|I18N_U_GC_LM_MASK|I18N_U_GC_LO_MASK) |
Mask constant for multiple i18n_uchar_category_e bits (L Letters).
Mask constant for multiple i18n_uchar_category_e bits (LC Cased Letters).
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for multiple i18n_uchar_category_e bits (M Marks).
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for multiple i18n_uchar_category_e bits (N Numbers).
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
#define I18N_U_GC_P_MASK (I18N_U_GC_PD_MASK|I18N_U_GC_PS_MASK|I18N_U_GC_PE_MASK|I18N_U_GC_PC_MASK|I18N_U_GC_PO_MASK|I18N_U_GC_PI_MASK|I18N_U_GC_PF_MASK) |
Mask constant for multiple i18n_uchar_category_e bits (P Punctuation).
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for multiple i18n_uchar_category_e bits (S Symbols).
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for multiple i18n_uchar_category_e bits (Z Separators).
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
Mask constant for a i18n_uchar_category_e.
#define I18N_U_GET_GC_MASK | ( | c | ) | I18N_U_MASK(u_charType(c)) |
Get a single-bit bit set for the general category of a character.
#define I18N_U_MASK | ( | x | ) | ((uint32_t)1 << (x)) |
Get a single-bit bit set (a flag) from a bit number 0..31.
#define I18N_U_NO_NUMERIC_VALUE ((double)-123456789.) |
Special value that is returned by i18n_uchar_get_numeric_value() when no numeric value is defined for a code point.
#define I18N_USEARCH_DONE -1 |
DONE is returned by i18n_usearch_previous() and i18n_usearch_next() after all valid matches have been returned, and by, i18n_usearch_first() and i18n_usearch_last() if there are no matches at all.
typedef int8_t i18n_ubool |
i18n_ubool.
typedef uint16_t i18n_uchar |
i18n_uchar.
typedef int32_t i18n_uchar32 |
i18n_uchar32.
typedef i18n_ubool(* i18n_uchar_enum_char_name_cb)(void *context, i18n_uchar32 code, i18n_uchar_u_char_name_choice_e name_choice, const char *name, int32_t length) |
Type of a callback function for i18n_uchar_enum_char_name() that gets called for each Unicode character with the code point value and the character name.
The callback function can stop the enumeration by returning false
.
[in] | context | The context pointer that was passed to i18n_uchar_enum_char_names() |
[in] | code | The Unicode code point for the character with this name |
[in] | name_choice | Selector for which kind of names is enumerated |
[in] | name | The character's name, zero-terminated. Can be used only in the callback. To use outside, make a copy. |
[in] | length | The length of the name |
true
if the enumeration should continue, false
to stop it typedef i18n_ubool(* i18n_uchar_enum_char_type_cb)(const void *context, i18n_uchar32 start, i18n_uchar32 limit, i18n_uchar_category_e type) |
Callback from i18n_uchar_enum_char_types(), is called for each contiguous range of code points c (where start <= c < limit
) with the same Unicode general category ("character type").
The callback function can stop the enumeration by returning false
.
[in] | context | The context pointer that was passed to i18n_uchar_enum_char_types() |
[in] | start | The first code point in a contiguous range with value |
[in] | limit | One past the last code point in a contiguous range with value |
[in] | type | The general category for all code points in [start..limit] |
true
if the enumeration should continue, false
to stop it Enumeration for Unicode general category types.
I18N_UCHAR_U_UNASSIGNED |
Non-category for unassigned and non-character code points |
I18N_UCHAR_U_GENERAL_OTHER_TYPES |
Cn "Other, Not Assigned (no characters in [UnicodeData.txt] have this property)" (same as I18N_UCHAR_U_UNASSIGNED!) |
I18N_UCHAR_U_UPPERCASE_LETTER |
Lu |
I18N_UCHAR_U_LOWERCASE_LETTER |
Ll |
I18N_UCHAR_U_TITLECASE_LETTER |
Lt |
I18N_UCHAR_U_MODIFIER_LETTER |
Lm |
I18N_UCHAR_U_OTHER_LETTER |
Lo |
I18N_UCHAR_U_NON_SPACING_MARK |
Mn |
I18N_UCHAR_U_ENCLOSING_MARK |
Me |
I18N_UCHAR_U_COMBINING_SPACING_MARK |
Mc |
I18N_UCHAR_U_DECIMAL_DIGIT_NUMBER |
Nd |
I18N_UCHAR_U_LETTER_NUMBER |
Nl |
I18N_UCHAR_U_OTHER_NUMBER |
No |
I18N_UCHAR_U_SPACE_SEPARATOR |
Zs |
I18N_UCHAR_U_LINE_SEPARATOR |
Zl |
I18N_UCHAR_U_PARAGRAPH_SEPARATOR |
Zp |
I18N_UCHAR_U_CONTROL_CHAR |
Cc |
I18N_UCHAR_U_FORMAT_CHAR |
Cf |
I18N_UCHAR_U_PRIVATE_USE_CHAR |
Co |
I18N_UCHAR_U_SURROGATE |
Cs |
I18N_UCHAR_U_DASH_PUNCTUATION |
Pd |
I18N_UCHAR_U_START_PUNCTUATION |
Ps |
I18N_UCHAR_U_END_PUNCTUATION |
Pe |
I18N_UCHAR_U_CONNECTOR_PUNCTUATION |
Pc |
I18N_UCHAR_U_OTHER_PUNCTUATION |
Po |
I18N_UCHAR_U_MATH_SYMBOL |
Sm |
I18N_UCHAR_U_CURRENCY_SYMBOL |
Sc |
I18N_UCHAR_U_MODIFIER_SYMBOL |
Sk |
I18N_UCHAR_U_OTHER_SYMBOL |
So |
I18N_UCHAR_U_INITIAL_PUNCTUATION |
Pi |
I18N_UCHAR_U_FINAL_PUNCTUATION |
Pf |
I18N_UCHAR_U_CHAR_CATEGORY_COUNT |
One higher than the last enum i18n_uchar_category_e constant |
Enumeration for the language directional property of a character set.
Enumeration for i18n_uchar_char_name() constants.
Enumeration for Decomposition Type constants.
Enumeration for Grapheme Cluster Break constants.
Enumeration for Hangul Syllable Type constants.
Enumeration for Joining Group constants.
Enumeration for Line Break constants.
Enumeration for i18n_uchar_get_property_name() and i18n_uchar_get_property_value_name() constants.
Enumeration for Sentence Break constants.
Enumeration for Word Break constants.
Constants for Unicode blocks, see the Unicode Data file Blocks.txt.
Enumeration of constants for Unicode properties. The properties APIs are intended to reflect Unicode properties as defined in the Unicode Character Database (UCD) and Unicode Technical Reports (UTR). For details about the properties see http://www.unicode.org/ucd/ . For names of Unicode properties see the UCD file PropertyAliases.txt.
I18N_UCHAR_ALPHABETIC |
Binary property Alphabetic. |
I18N_UCHAR_BINARY_START |
First constant for binary Unicode properties. |
I18N_UCHAR_ASCII_HEX_DIGIT |
Binary property ASCII_Hex_Digit. |
I18N_UCHAR_BIDI_CONTROL |
Binary property Bidi_Control. |
I18N_UCHAR_BIDI_MIRRORED |
Binary property Bidi_Mirrored. |
I18N_UCHAR_DASH |
Binary property Dash. |
I18N_UCHAR_DEFAULT_IGNORABLE_CODE_POINT |
Binary property Default_Ignorable_Code_Point (new in Unicode 3.2). |
I18N_UCHAR_DEPRECATED |
Binary property Deprecated (new in Unicode 3.2). |
I18N_UCHAR_DIACRITIC |
Binary property Diacritic. |
I18N_UCHAR_EXTENDER |
Binary property Extender. |
I18N_UCHAR_FULL_COMPOSITION_EXCLUSION |
Binary property Full_Composition_Exclusion. |
I18N_UCHAR_GRAPHEME_BASE |
Binary property Grapheme_Base (new in Unicode 3.2). |
I18N_UCHAR_GRAPHEME_EXTEND |
Binary property Grapheme_Extend (new in Unicode 3.2). |
I18N_UCHAR_GRAPHEME_LINK |
Binary property Grapheme_Link (new in Unicode 3.2). |
I18N_UCHAR_HEX_DIGIT |
Binary property Hex_Digit. |
I18N_UCHAR_HYPHEN |
Binary property Hyphen. |
I18N_UCHAR_ID_CONTINUE |
Binary property ID_Continue. |
I18N_UCHAR_ID_START |
Binary property ID_Start. |
I18N_UCHAR_IDEOGRAPHIC |
Binary property Ideographic. |
I18N_UCHAR_IDS_BINARY_OPERATOR |
Binary property IDS_Binary_Operator (new in Unicode 3.2). |
I18N_UCHAR_IDS_TRINARY_OPERATOR |
Binary property IDS_Trinary_Operator (new in Unicode 3.2). |
I18N_UCHAR_JOIN_CONTROL |
Binary property Join_Control. |
I18N_UCHAR_LOGICAL_ORDER_EXCEPTION |
Binary property Logical_Order_Exception (new in Unicode 3.2). |
I18N_UCHAR_LOWERCASE |
Binary property Lowercase. |
I18N_UCHAR_MATH |
Binary property Math. |
I18N_UCHAR_NONCHARACTER_CODE_POINT |
Binary property Noncharacter_Code_Point. |
I18N_UCHAR_QUOTATION_MARK |
Binary property Quotation_Mark. |
I18N_UCHAR_RADICAL |
Binary property Radical (new in Unicode 3.2). |
I18N_UCHAR_SOFT_DOTTED |
Binary property Soft_Dotted (new in Unicode 3.2). |
I18N_UCHAR_TERMINAL_PUNCTUATION |
Binary property Terminal_Punctuation. |
I18N_UCHAR_UNIFIED_IDEOGRAPH |
Binary property Unified_Ideograph (new in Unicode 3.2). |
I18N_UCHAR_UPPERCASE |
Binary property Uppercase. |
I18N_UCHAR_WHITE_SPACE |
Binary property White_Space. |
I18N_UCHAR_XID_CONTINUE |
Binary property XID_Continue. |
I18N_UCHAR_XID_START |
Binary property XID_Start. |
I18N_UCHAR_CASE_SENSITIVE |
Binary property Case_Sensitive. |
I18N_UCHAR_S_TERM |
Binary property STerm (new in Unicode 4.0.1). |
I18N_UCHAR_VARIATION_SELECTOR |
Binary property Variation_Selector (new in Unicode 4.0.1). |
I18N_UCHAR_NFD_INERT |
Binary property NFD_Inert. |
I18N_UCHAR_NFKD_INERT |
Binary property NFKD_Inert. |
I18N_UCHAR_NFC_INERT |
Binary property NFC_Inert. |
I18N_UCHAR_NFKC_INERT |
Binary property NFKC_Inert. |
I18N_UCHAR_SEGMENT_STARTER |
Binary Property Segment_Starter. |
I18N_UCHAR_PATTERN_SYNTAX |
Binary property Pattern_Syntax (new in Unicode 4.1). |
I18N_UCHAR_PATTERN_WHITE_SPACE |
Binary property Pattern_White_Space (new in Unicode 4.1). |
I18N_UCHAR_POSIX_ALNUM |
Binary property alnum (a C/POSIX character class). |
I18N_UCHAR_POSIX_BLANK |
Binary property blank (a C/POSIX character class). |
I18N_UCHAR_POSIX_GRAPH |
Binary property graph (a C/POSIX character class). |
I18N_UCHAR_POSIX_PRINT |
Binary property print (a C/POSIX character class). |
I18N_UCHAR_POSIX_XDIGIT |
Binary property xdigit (a C/POSIX character class). |
I18N_UCHAR_CASED |
Binary property Cased. |
I18N_UCHAR_CASE_IGNORABLE |
Binary property Case_Ignorable. |
I18N_UCHAR_CHANGES_WHEN_LOWERCASED |
Binary property Changes_When_Lowercased. |
I18N_UCHAR_CHANGES_WHEN_UPPERCASED |
Binary property Changes_When_Uppercased. |
I18N_UCHAR_CHANGES_WHEN_TITLECASED |
Binary property Changes_When_Titlecased. |
I18N_UCHAR_CHANGES_WHEN_CASEFOLDED |
Binary property Changes_When_Casefolded. |
I18N_UCHAR_CHANGES_WHEN_CASEMAPPED |
Binary property Changes_When_Casemapped. |
I18N_UCHAR_CHANGES_WHEN_NFKC_CASEFOLDED |
Binary property Changes_When_NFKC_Casefolded. |
I18N_UCHAR_EMOJI |
Binary property Emoji (Since 4.0). |
I18N_UCHAR_EMOJI_PRESENTATION |
Binary property Emoji Presentation (Since 4.0). |
I18N_UCHAR_EMOJI_MODIFIER |
Binary property Emoji Modifier (Since 4.0). |
I18N_UCHAR_EMOJI_MODIFIER_BASE |
Binary property Emoji Modifier Base (Since 4.0). |
I18N_UCHAR_BINARY_LIMIT |
One more than the last constant for binary Unicode properties. |
I18N_UCHAR_BIDI_CLASS |
Enumerated property Bidi_Class. |
I18N_UCHAR_INT_START |
First constant for enumerated/integer Unicode properties. |
I18N_UCHAR_BLOCK |
Enumerated property Block. |
I18N_UCHAR_CANONICAL_COMBINING_CLASS |
Enumerated property Canonical_Combining_Class. |
I18N_UCHAR_DECOMPOSITION_TYPE |
Enumerated property Decomposition_Type. |
I18N_UCHAR_EAST_ASIAN_WIDTH |
Enumerated property East_Asian_Width. |
I18N_UCHAR_GENERAL_CATEGORY |
Enumerated property General_Category. |
I18N_UCHAR_JOINING_GROUP |
Enumerated property Joining_Group. |
I18N_UCHAR_JOINING_TYPE |
Enumerated property Joining_Type. |
I18N_UCHAR_LINE_BREAK |
Enumerated property Line_Break. |
I18N_UCHAR_NUMERIC_TYPE |
Enumerated property Numeric_Type. |
I18N_UCHAR_SCRIPT |
Enumerated property Script. |
I18N_UCHAR_HANGUL_SYLLABLE_TYPE |
Enumerated property Hangul_Syllable_Type, new in Unicode 4. |
I18N_UCHAR_NFD_QUICK_CHECK |
Enumerated property NFD_Quick_Check. |
I18N_UCHAR_NFKD_QUICK_CHECK |
Enumerated property NFKD_Quick_Check. |
I18N_UCHAR_NFC_QUICK_CHECK |
Enumerated property NFC_Quick_Check. |
I18N_UCHAR_NFKC_QUICK_CHECK |
Enumerated property NFKC_Quick_Check. |
I18N_UCHAR_LEAD_CANONICAL_COMBINING_CLASS |
Enumerated property Lead_Canonical_Combining_Class. |
I18N_UCHAR_TRAIL_CANONICAL_COMBINING_CLASS |
Enumerated property Trail_Canonical_Combining_Class. |
I18N_UCHAR_GRAPHEME_CLUSTER_BREAK |
Enumerated property Grapheme_Cluster_Break (new in Unicode 4.1). |
I18N_UCHAR_SENTENCE_BREAK |
Enumerated property Sentence_Break (new in Unicode 4.1). |
I18N_UCHAR_WORD_BREAK |
Enumerated property Word_Break (new in Unicode 4.1). |
I18N_UCHAR_BIDI_PAIRED_BRACKET_TYPE |
Enumerated property Bidi_Paired_Bracket_Type. |
I18N_UCHAR_INT_LIMIT |
One more than the last constant for enumerated/integer Unicode properties. |
I18N_UCHAR_GENERAL_CATEGORY_MASK |
Bitmask property General_Category_Mask. |
I18N_UCHAR_MASK_START |
First constant for bit-mask Unicode properties. |
I18N_UCHAR_MASK_LIMIT |
One more than the last constant for bit-mask Unicode properties. |
I18N_UCHAR_NUMERIC_VALUE |
Double property Numeric_Value. |
I18N_UCHAR_DOUBLE_START |
First constant for double Unicode properties. |
I18N_UCHAR_DOUBLE_LIMIT |
One more than the last constant for double Unicode properties. |
I18N_UCHAR_AGE |
String property Age. |
I18N_UCHAR_STRING_START |
First constant for string Unicode properties. |
I18N_UCHAR_BIDI_MIRRORING_GLYPH |
String property Bidi_Mirroring_Glyph. |
I18N_UCHAR_CASE_FOLDING |
String property Case_Folding. |
I18N_UCHAR_LOWERCASE_MAPPING |
String property Lowercase_Mapping. |
I18N_UCHAR_NAME |
String property Name. |
I18N_UCHAR_SIMPLE_CASE_FOLDING |
String property Simple_Case_Folding. |
I18N_UCHAR_SIMPLE_LOWERCASE_MAPPING |
String property Simple_Lowercase_Mapping. |
I18N_UCHAR_SIMPLE_TITLECASE_MAPPING |
String property Simple_Titlecase_Mapping. |
I18N_UCHAR_SIMPLE_UPPERCASE_MAPPING |
String property Simple_Uppercase_Mapping. |
I18N_UCHAR_TITLECASE_MAPPING |
String property Titlecase_Mapping. |
I18N_UCHAR_UPPERCASE_MAPPING |
String property Uppercase_Mapping. |
I18N_UCHAR_BIDI_PAIRED_BRACKET |
String property Bidi_Paired_Bracket. |
I18N_UCHAR_STRING_LIMIT |
One more than the last constant for string Unicode properties. |
I18N_UCHAR_SCRIPT_EXTENSIONS |
Provisional property Script_Extensions (new in Unicode 6.0). |
I18N_UCHAR_OTHER_PROPERTY_START |
First constant for Unicode properties with unusual value types. |
I18N_UCHAR_OTHER_PROPERTY_LIMIT |
One more than the last constant for Unicode properties with unusual value types. |
I18N_UCHAR_INVALID_CODE |
Represents a nonexistent or invalid property or property value. |
enum i18n_uscript_code_e |
Constants for ISO 15924 script codes.
int i18n_uchar_char_age | ( | i18n_uchar32 | c, |
i18n_uversion_info | version_array | ||
) |
Gets 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.
[in] | c | The code point |
[in] | version_array | The Unicode version number array, to be filled in |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_char_digit_value | ( | i18n_uchar32 | c, |
int32_t * | char_digit_value | ||
) |
Returns the decimal digit value of a decimal digit character.
Such characters have the general category "Nd" (decimal digit numbers) and a i18n_uchar_u_numeric_type_e of I18N_UCHAR_U_NT_DECIMAL. Unlike ICU releases before 2.6, no digit values are returned for any Han characters because Han number characters are often used with a special chinese-style number format (with characters for powers of 10 in between) instead of in decimal-positional notation. Unicode 4 explicitly assigns Han number characters the i18n_uchar_u_numeric_type_e I18N_UCHAR_U_NT_NUMERIC instead of I18N_UCHAR_U_NT_DECIMAL. See jitterbug 1483 for more details. Use i18n_uchar_get_int_property_value() and i18n_uchar_get_numeric_value() for complete numeric unicode properties.
[in] | c | The code point for which to get the decimal digit value |
[out] | char_digit_value | The decimal digit value of c, or -1 if c is not a decimal digit character |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_char_direction | ( | i18n_uchar32 | c, |
i18n_uchar_direction_e * | direction | ||
) |
Returns the bidirectional category value for the code point.
Which is used in the unicode bidirectional algorithm (UAX #9 Unicode reports). Note that some unassigned code points have bidi values of R or AL because they are in blocks that are reserved for right-to-left scripts. Same as java.lang.Character.getDirectionality()
[in] | c | The code point to be tested |
[out] | direction | The bidirectional category (i18n_uchar_direction_e) value |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_char_from_name | ( | i18n_uchar_u_char_name_choice_e | name_choice, |
const char * | name, | ||
i18n_uchar32 * | char_from_name | ||
) |
Finds 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, I18N_ERROR_INVALID_CHAR_FOUND is returned. 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.
[in] | name_choice | Selector for which name to match |
[in] | name | The name to match |
[out] | char_from_name | The Unicode value of the code point with the given name, or an undefined value if there is no such code point |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_char_mirror | ( | i18n_uchar32 | c, |
i18n_uchar32 * | char_mirror | ||
) |
Maps the specified character to a "mirror-image" character.
For characters with the bidi_mirrored property, implementations sometimes need a "poor man's" mapping to another unicode character (code point) such that the default glyph may serve as the mirror-image of the default glyph of the specified character. This is useful for text conversion to and from codepages with visual order, and for displays without glyph selection capabilities.
[in] | c | The code point to be mapped |
[out] | char_mirror | Another Unicode code point that may serve as a mirror-image substitute, or c itself if there is no such mapping or c does not have the Bidi_Mirrored property |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_char_name | ( | i18n_uchar32 | code, |
i18n_uchar_u_char_name_choice_e | name_choice, | ||
char * | buffer, | ||
int32_t | buffer_length, | ||
int32_t * | name_length | ||
) |
Retrieves the name of a unicode character.
Depending on name_choice, the character name written into the buffer is the "modern" name or the name that was defined in unicode version 1.0. The name contains only "invariant" characters like a-z, 0-9, space, and '-'. unicode 1.0 names are only retrieved if they are different from the modern names and if the data file contains the data for them.
[in] | code | The character (code point) for which to get the name. It must be 0 <= code <= 0x10ffff . |
[in] | name_choice | Selector for which name to get. |
[in] | buffer | Destination buffer 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. |
[in] | buffer_length | The length of the buffer |
[out] | name_length | 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. |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_char_type | ( | i18n_uchar32 | c, |
int8_t * | char_type | ||
) |
Returns the general category value for the code point.
Same as java.lang.character.getType().
[in] | c | The code point to be tested |
[out] | char_type | The general category (i18n_uchar_category_e) value |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_digit | ( | i18n_uchar32 | ch, |
int8_t | radix, | ||
int32_t * | numerical_value | ||
) |
Returns the decimal digit value of the code point in the specified radix.
If the radix is not in the range
or if the value of c is not a valid digit in the specified radix, 2<=
radix <= 36
-1
is returned. A character is a valid digit if at least one of the following is true:
The character has a decimal digit value. Such characters have the general category "Nd" (decimal digit numbers) and a I18N_UCHAR_NUMERIC_TYPE of I18N_UCHAR_U_NT_DECIMAL. In this case the value is the character's decimal digit value.
The character is one of the uppercase Latin letters 'A'
through 'Z'
. In this case the value is c -
.'A'
+ 10
The character is one of the lowercase Latin letters 'a'
through 'z'
. In this case the value is ch -
.'a'
+ 10
Latin letters from both the ASCII range (0061..007A, 0041..005A) as well as from the Fullwidth ASCII range (FF41..FF5A, FF21..FF3A) are recognized.
Same as java.lang.Character.digit().
[in] | ch | The code point to be tested |
[in] | radix | The radix |
[out] | numerical_value | The numeric value represented by the character in the specified radix, or -1 if there is no value or if the value exceeds the radix |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_enum_char_names | ( | i18n_uchar32 | start, |
i18n_uchar32 | limit, | ||
i18n_uchar_enum_char_name_cb | cb, | ||
void * | user_data, | ||
i18n_uchar_u_char_name_choice_e | name_choice | ||
) |
Enumerates 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.
[in] | start | The first code point in the enumeration range |
[in] | limit | One more than the last code point in the enumeration range (the first one after the range) |
[in] | cb | The function that is to be called for each character name |
[in] | user_data | An arbitrary pointer that is passed to the function |
[in] | name_choice | Selector for which kind of names to enumerate |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_enum_char_types | ( | i18n_uchar_enum_char_type_cb | cb, |
const void * | user_data | ||
) |
Enumerates efficiently all code points with their unicode general categories.
This is useful for building data structures (e.g., unicode_set's), for enumerating all assigned code points ( type != I18N_UCHAR_U_UNASSIGNED
), etc.for each contiguous range of code points with a given general category ("character type"), the i18n_uchar_enum_char_type_cb() function is called. Adjacent ranges have different types. The unicode standard guarantees that the numeric value of the type is 0..31.
[in] | cb | A pointer to a function that is called for each contiguous range of code points with the same general category |
[in] | user_data | An opaque pointer that is passed on to the callback function |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_fold_case | ( | i18n_uchar32 | c, |
uint32_t | options, | ||
i18n_uchar32 * | code_point | ||
) |
Maps the given character to its case folding equivalent.
If the character has no case folding equivalent, the character itself is returned. This function only returns the simple, single-code point case mapping. Full case mappings should be used whenever possible because they produce better results by working on whole strings. They take into account the string context and the language and can map to a result string with a different length as appropriate. Full case mappings are applied by the string case mapping functions, see utils_i18n_ustring.h. See also the user guide chapter on c/posix migration: User Guide: Case Mappings
[in] | c | The code point to be mapped |
[in] | options | Either I18N_U_FOLD_CASE_DEFAULT or I18N_U_FOLD_CASE_EXCLUDE_SPECIAL_I |
[out] | code_point | The I18N_UCHAR_SIMPLE_CASE_FOLDING of the code point, if any; otherwise the code point itself. |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_for_digit | ( | int32_t | digit, |
int8_t | radix, | ||
i18n_uchar32 * | representation | ||
) |
Determines the character representation for a specific digit in the specified radix.
If the value of 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
. If the digit is less than 0
<= digit < radix10
, then
is returned. Otherwise, the value '0'
+ digit
is returned. Same as java.lang.Character.forDigit(). 'a'
+ digit - 10
[in] | digit | The number to convert to a character |
[in] | radix | The radix |
[out] | representation | The char representation of the specified digit in the specified radix |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_get_bidi_paired_bracket | ( | i18n_uchar32 | c, |
i18n_uchar32 * | bidi_paired_bracket | ||
) |
Maps the specified character to its paired bracket character.
For bidi_paired_bracket_type!=none, this is the same as u_char_mirror(). Otherwise c itself is returned. See Unicode report
[in] | c | The code point to be mapped |
[out] | bidi_paired_bracket | The paired bracket code point, or c itself if there is no such mapping (Bidi_Paired_Bracket_Type=None) |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_get_combining_class | ( | i18n_uchar32 | c, |
uint8_t * | combining_class | ||
) |
Returns the combining class of the code point.
[in] | c | The code point of the character |
[out] | combining_class | The combining class of the character |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_get_fc_nfkc_closure | ( | i18n_uchar32 | c, |
i18n_uchar * | dest, | ||
int32_t | dest_capacity, | ||
int32_t * | length | ||
) |
Gets the FC_NFKC_Closure property string for a character.
See unicode standard annex #15 for details, search for "FC_NFKC_Closure" or for "FNC": Unicode reports .
[in] | c | The character (code point) for which to get the FC_NFKC_Closure string. It must be . |
[in] | dest | The destination buffer 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. |
[in] | dest_capacity | The capacity of the destination buffer |
[out] | length | The length of the string, or 0 if there is no FC_NFKC_Closure string for this character. If the dest_capacity is less than or equal to the length, then the buffer contains the truncated name and the length indicates the full length of the name. The length does not include the zero-termination. |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_get_int_property_max_value | ( | i18n_uchar_uproperty_e | which, |
int32_t * | int_max_value | ||
) |
Gets the maximum value for an enumerated/integer/binary Unicode property.
Can be used together with i18n_uchar_get_int_property_min_value to allocate arrays of UnicodeSet or similar. Examples for min/max values (for unicode 3.2): for undefined i18n_uchar_uproperty_e constant values, min/max values will be 0/
-1
.
[in] | which | i18n_uchar_uproperty_e selector constant, identifies which binary property to check. Must be I18N_UCHAR_BINARY_START <= which < I18N_UCHAR_BINARY_LIMIT or I18N_UCHAR_INT_START <= which < I18N_UCHAR_INT_LIMIT . |
[out] | int_max_value | Maximum value returned by i18n_uchar_get_int_property_value() for a Unicode property. int_max_value will be set to value lower than or equal to 0 if the property selector is out of range. |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_get_int_property_min_value | ( | i18n_uchar_uproperty_e | which, |
int32_t * | int_min_value | ||
) |
Gets the minimum value for an enumerated/integer/binary Unicode property.
[in] | which | i18n_uchar_uproperty_e selector constant, identifies which binary property to check. Must be I18N_UCHAR_BINARY_START <= which < I18N_UCHAR_BINARY_LIMIT or I18N_UCHAR_INT_START <= which < I18N_UCHAR_INT_LIMIT . |
[out] | int_min_value | Minimum value returned by i18n_uchar_get_int_property_value() for a Unicode property. 0 if the property selector is out of range. |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_get_int_property_value | ( | i18n_uchar32 | c, |
i18n_uchar_uproperty_e | which, | ||
int32_t * | property_val | ||
) |
Gets the property value for an enumerated property for a code point.
int property_value;
i18n_uchar_u_east_asian_width_e east_asian_width;
i18n_uchar_get_int_property_value (c, I18N_UCHAR_EAST_ASIAN_WIDTH, &property_value);
east_asian_width = (i18n_uchar_u_east_asian_width_e)property_value;
int property_value;
bool is_ideographic;
i18n_uchar_get_int_property_value(c, I18N_UCHAR_IDEOGRAPHIC, &property_value);
is_ideographic = (bool)property_value;
[in] | c | The code point to test. |
[in] | which | The i18n_uchar_uproperty_e selector constant, identifies which property to check. Must be I18N_UCHAR_BINARY_START <= which < I18N_UCHAR_BINARY_LIMIT or I18N_UCHAR_INT_START <= which < I18N_UCHAR_INT_LIMIT or I18N_UCHAR_MASK_START <= which < I18N_UCHAR_MASK_LIMIT . |
[out] | property_val | The numeric value that is directly the property value or, for enumerated properties, corresponds to the numeric value of the enumerated constant of the respective property value enumeration type (cast to enum type if necessary) Returns 0 or 1 (for false/true) for binary Unicode propertiesReturns a bit-mask for mask properties Returns 0 if which is out of bounds or if the Unicode version does not have data for the property at all, or not for this code point. |
I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_get_numeric_value | ( | i18n_uchar32 | c, |
double * | numeric_val | ||
) |
Gets the numeric value for a Unicode code point as defined in the Unicode Character Database.
A "double" param type is necessary because some numeric values are fractions, negative, or too large for int32_t. For characters without any numeric values in the Unicode Character Database, numeric_val will be equal to I18N_U_NO_NUMERIC_VALUE. Note: This is different from the Unicode Standard which specifies NaN as the default value. (NaN is not available on all platforms) This function is similar to java.lang.Character.getNumericValue(), but i18n_uchar_get_numeric_value() also supports negative values, large values, and fractions, while Java's getNumericValue() returns values 10..35 for ASCII letters.
[in] | c | The code point to get the numeric value for |
[out] | numeric_val | The numeric value of c or I18N_U_NO_NUMERIC_VALUE if none is defined |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_get_property_enum | ( | const char * | alias, |
i18n_uchar_uproperty_e * | property_enum | ||
) |
Returns the i18n_uchar_uproperty_e enum for a given property name, as specified in the unicode database.
Short, long, and any other variants are recognized. In addition, this function maps the synthetic names "gcm" / "General_Category_Mask" to the property I18N_UCHAR_GENERAL_CATEGORY_MASK.
[in] | alias | The property name to be matched. The name is compared using "loose matching" |
[out] | property_enum | A i18n_uchar_uproperty_e enum, or I18N_UCHAR_INVALID_CODE if the given name does not match any property |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_get_property_name | ( | i18n_uchar_uproperty_e | property, |
i18n_uchar_u_property_name_choice_e | name_choice, | ||
const char ** | name | ||
) |
Returns the unicode name for a given property, as given in the unicode database file.
In addition, this function maps the property I18N_UCHAR_GENERAL_CATEGORY_MASK to the synthetic names "gcm" / "General_Category_Mask".
[in] | property | #18n_uchar_uproperty_e selector other than I18N_UCHAR_INVALID_CODE. If out of range, NULL is returned. |
[in] | name_choice | 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 I18N_UCHAR_U_LONG_PROPERTY_NAME + i , where i = 1, 2,.. . |
[out] | name | A pointer to the name, or NULL if either the property or the name_choice is out of range. If a given name_choice returns NULL, then all larger values of name_choice will return NULL, with one exception: if NULL is returned for I18N_UCHAR_U_SHORT_PROPERTY_NAME, then I18N_UCHAR_U_LONG_PROPERTY_NAME (and higher) may still return a non-NULL value. The returned pointer is valid until 18n_uclean_cleanup() (not implemented) is called. |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_get_property_value_enum | ( | i18n_uchar_uproperty_e | property, |
const char * | alias, | ||
int32_t * | value_enum | ||
) |
Returns the property value integer for a given value name, as specified in the unicode database.
Short, long, and any other variants are recognized. Some of the names will only be recognized with I18N_UCHAR_GENERAL_CATEGORY_MASK, not I18N_UCHAR_GENERAL_CATEGORY. these include: "C" / "Other", "L" / "Letter", "Lc" / "Cased_Letter", "M" / "Mark", "N" / "Number", "P" / "Punctuation", "S" / "Symbol", and "Z" / "Separator".
[in] | property | i18n_uchar_uproperty_e selector constant. Must be I18N_UCHAR_BINARY_START <= property < I18N_UCHAR_BINARY_LIMIT or I18N_UCHAR_INT_START <= property < I18N_UCHAR_INT_LIMIT or I18N_UCHAR_MASK_START <= property < I18N_UCHAR_MASK_LIMIT . If out of range, I18N_UCHAR_INVALID_CODE is returned. |
[in] | alias | The value name to be matched. The name is compared using "loose matching" |
[out] | value_enum | A value integer or I18N_UCHAR_INVALID_CODE if the given name does not match any value of the given property, or if the property is invalid. Note: I18N_UCHAR_GENERAL_CATEGORY_MASK values are not values of i18n_uchar_category_e, but rather mask values produced by I18N_U_GET_GC_MASK(). This allows grouped categories such as [:L:] to be represented. |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_get_property_value_name | ( | i18n_uchar_uproperty_e | property, |
int32_t | value, | ||
i18n_uchar_u_property_name_choice_e | name_choice, | ||
const char ** | name | ||
) |
Returns the unicode name for a given property value.
Note: some of the names can only be retrieved using I18N_UCHAR_GENERAL_CATEGORY_MASK, not I18N_UCHAR_GENERAL_CATEGORY. These include: "C" / "Other", "L" / "Letter", "Lc" / "Cased_Letter", "M" / "Mark", "N" / "Number", "P" / "Punctuation", "S" / "Symbol", and "Z" / "Separator".
[in] | property | i18n_uchar_uproperty_e selector constant. Must be I18N_UCHAR_BINARY_START <= property < I18N_UCHAR_BINARY_LIMIT or I18N_UCHAR_INT_START <= property < I18N_UCHAR_INT_LIMIT or I18N_UCHAR_MASK_START <= property < I18N_UCHAR_MASK_LIMIT . If out of range, NULL is returned. |
[in] | value | Selector for a value for the given property. If out of range, NULL is returned. In general, valid values range from 0 up to some maximum. There are a few exceptions:I18N_UCHAR_BLOCK values begin at the non-zero value I18N_UCHAR_UBLOCK_BASIC_LATIN. I18N_UCHAR_CANONICAL_COMBINING_CLASS values are not contiguous and range from 0..240. I18N_UCHAR_GENERAL_CATEGORY_MASK values are not values of i18n_uchar_category_e, but rather mask values produced by I18N_U_GET_GC_MASK(). This allows grouped categories such as [:L:] to be represented. Mask values range non-contiguously from 1..I18N_U_GC_P_MASK. |
[in] | name_choice | Selector for which name to get. If out of range, NULL is returned. All values 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 I18N_UCHAR_U_LONG_PROPERTY_NAME + i , where i = 1, 2,.. . |
[out] | name | A pointer to the name, or NULL if either the property or the name_choice is out of range. If a given name_choice returns NULL, then all larger values of name_choice will return NULL, with one exception: if NULL is returned for I18N_UCHAR_U_SHORT_PROPERTY_NAME, then I18N_UCHAR_U_LONG_PROPERTY_NAME (and higher) may still return a non-NULL value. The returned pointer is valid until 18n_uclean_cleanup() (not implemented) is called. |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_get_ublock_code | ( | i18n_uchar32 | c, |
i18n_uchar_ublock_code_e * | block_val | ||
) |
Gets the Unicode allocation block that contains the character.
[in] | c | The code point to test |
[out] | block_val | The block value for the code point |
I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_get_unicode_version | ( | i18n_uversion_info | version_array | ) |
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 }.
[in] | version_array | An output array that will be filled in with the Unicode version number |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_has_binary_property | ( | i18n_uchar32 | c, |
i18n_uchar_uproperty_e | which, | ||
i18n_ubool * | has_binary_property | ||
) |
Checks a binary unicode property for a code point.
The properties APIs are intended to reflect unicode properties as defined in the Unicode Character Database (UCD) and Unicode Technical Reports (UTR). For details about the properties see Unicode.org.
[in] | c | Code point to test |
[in] | which | i18n_uchar_uproperty_e selector constant, identifies which binary property to check. Must be I18N_UCHAR_BINARY_START <= which < I18N_UCHAR_BINARY_LIMIT . |
[out] | has_binary_property | true or false according to the binary Unicode property value for c. Also false if which is out of bounds or if the Unicode version does not have data for the property at all, or not for this code point. |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_alnum | ( | i18n_uchar32 | c, |
i18n_ubool * | is_alnum | ||
) |
Determines whether the specified code point is an alphanumeric character (letter or digit) according to Java.
true
for characters with general categories "L" (letters) and "Nd" (decimal digit numbers). Same as java.lang.Character.isLetterOrDigit(). In addition to being equivalent to a Java function, this also serves as a c/posix migration function. See the comments about c/posix character classification functions in the documentation at the top of this header file.
[in] | c | The code point to be tested |
[out] | is_alnum | true if the code point is an alphanumeric character according to Character.isLetterOrDigit() |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_alpha | ( | i18n_uchar32 | c, |
i18n_ubool * | is_alpha | ||
) |
Determines whether the specified code point is a letter character.
true
for general categories "L" (letters). Same as java.lang.Character.isLetter(). In addition to being equivalent to a Java function, this also serves as a c/posix migration function. See the comments about c/posix character classification functions in the documentation at the top of this header file.
[in] | c | The code point to be tested |
[out] | is_alpha | true if the code point is a letter character |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_alphabetic | ( | i18n_uchar32 | c, |
i18n_ubool * | is_alphabetic | ||
) |
Checks if a code point has the Alphabetic Unicode unicode property.
Same as i18n_uchar_has_binary_property(c, I18N_UCHAR_ALPHABETIC). This is different from the i18n_uchar_is_alpha() function.
[in] | c | Code point to test |
[out] | is_alphabetic | true if the code point has the I18N_UCHAR_ALPHABETIC Unicode property, false otherwise |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_base | ( | i18n_uchar32 | c, |
i18n_ubool * | is_base | ||
) |
Determines whether the specified code point is a base character.
true
for general categories "L" (letters), "N" (numbers), "Mc" (spacing combining marks), and "Me" (enclosing marks). Note that this is different from the unicode definition in chapter 3.5, conformance clause D13, which defines base characters to be all characters (not Cn) that do not graphically combine with preceding characters (M) and that are neither control (Cc) or format (Cf) characters.
[in] | c | The code point to be tested |
[out] | is_base | true if the code point is a base character according to this function |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_blank | ( | i18n_uchar32 | c, |
i18n_ubool * | is_blank | ||
) |
Determines whether the specified code point is a "blank" or "horizontal space", a character that visibly separates words on a line.
The following are equivalent definitions: true
for unicode white_space characters except for "vertical space controls" where "vertical space controls" are the following characters: u+000_a (Lf), u+000_b (Vt), u+000_c (Ff), u+000_d (Cr), u+0085 (Nel), u+2028 (Ls), u+2029 (Ps). Same as true
for u+0009 (tab) and characters with general category "Zs" (space separators) except zero width space (zwsp, u+200_b). Note: There are several ICU whitespace functions; please see the utils_i18n_uchar.h file documentation for a detailed comparison. This is a c/posix migration function. See the comments about c/posix character classification functions in the documentation at the top of this header file.
[in] | c | The code point to be tested |
[out] | is_blank | true if the code point is a "blank" |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_control | ( | i18n_uchar32 | c, |
i18n_ubool * | is_control | ||
) |
Determines whether the specified code point is a control character (as defined by this function).
A control character is one of the following:
ISO 8-bit control character (U+0000..U+001f and U+007f..U+009f)
I18N_UCHAR_U_CONTROL_CHAR (Cc)
I18N_UCHAR_U_FORMAT_CHAR (Cf)
I18N_UCHAR_U_LINE_SEPARATOR (Zl)
I18N_UCHAR_U_PARAGRAPH_SEPARATOR (Zp)
This is a c/posix migration function. See the comments about c/posix character classification functions in the documentation at the top of this header file.
[in] | c | The code point to be tested |
[out] | is_control | true if the code point is a control character |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_defined | ( | i18n_uchar32 | c, |
i18n_ubool * | is_defined | ||
) |
Determines whether the specified code point is "defined", which usually means that it is assigned a character.
true
for general categories other than "Cn" (other, not assigned), i.e. Note that non-character code points (e.g., u+fdd0) are not "defined" (they are Cn), but surrogate code points are "defined" (Cs). Same as java.lang.Character.isDefined().
[in] | c | The code point to be tested |
[out] | is_defined | true if the code point is assigned a character |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_digit | ( | i18n_uchar32 | c, |
i18n_ubool * | is_digit | ||
) |
Determines whether the specified code point is a digit character according to Java.
true
for characters with general category "Nd" (decimal digit numbers). Beginning with Unicode 4, this is the same as testing for the I18N_UCHAR_NUMERIC_TYPE of I18N_UCHAR_U_NT_DECIMAL. Same as java.lang.Character.isDigit(). In addition to being equivalent to a Java function, this also serves as a c/posix migration function. See the comments about c/posix character classification functions in the documentation at the top of this header file.
[in] | c | The code point to be tested |
[out] | is_digit | true if the code point is a digit character according to Character.is_digit() |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_graph | ( | i18n_uchar32 | c, |
i18n_ubool * | is_graph | ||
) |
Determines whether the specified code point is a "graphic" character (printable, excluding, spaces).
true
for all characters except those with general categories "Cc" (control codes), "Cf" (format controls), "Cs" (surrogates), "Cn" (unassigned), and "Z" (separators). This is a c/posix migration function. See the comments about c/posix character classification functions in the documentation at the top of this header file.
[in] | c | The code point to be tested |
[out] | is_graph | true if the code point is a "graphic" character |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_id_ignorable | ( | i18n_uchar32 | c, |
i18n_ubool * | is_id_ignorable | ||
) |
Determines if the specified character should be regarded as an ignorable character in an identifier, according to java.
true
for characters with general category "Cf" (format controls) as well as non-whitespace ISO controls (u+0000..u+0008, u+000_e..u+001_b, u+007_f..u+009_f). Same as java.lang.Character.isIdentifierIgnorable(). Note that unicode just recommends to ignore Cf (format controls).
[in] | c | The code point to be tested |
[out] | is_id_ignorable | true if the code point is ignorable in identifiers according to Java |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_id_part | ( | i18n_uchar32 | c, |
i18n_ubool * | is_id_part | ||
) |
Determines if the specified character is permissible in an identifier according to Java.
true
for characters with general categories "L" (letters), "Nl" (letter numbers), "Nd" (decimal digits), "Mc" and "Mn" (combining marks), "Pc" (connecting punctuation), and i18n_uchar_is_id_ignorable(). Same as java.lang.Character.isUnicodeIdentifierPart(). Almost the same as Unicode's ID_Continue (I18N_UCHAR_ID_CONTINUE) except that unicode recommends to ignore Cf which is less than i18n_uchar_is_id_ignorable().
[in] | c | The code point to be tested |
[out] | is_id_part | true if the code point may occur in an identifier according to Java |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_id_start | ( | i18n_uchar32 | c, |
i18n_ubool * | is_id_start | ||
) |
Determines if the specified character is permissible as the first character in an identifier according to unicode (the unicode standard, version 3.0, chapter 5.16 identifiers).
true
for characters with general categories "L" (letters) and "Nl" (letter numbers). Same as java.lang.Character.isUnicodeIdentifierStart(). Same as I18N_UCHAR_ID_START
[in] | c | The code point to be tested |
[out] | is_id_start | true if the code point may start an identifier |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_iso_control | ( | i18n_uchar32 | c, |
i18n_ubool * | is_iso_control | ||
) |
Determines whether the specified code point is an ISO control code.
true
for u+0000..u+001f and u+007f..u+009f (general category "cc"). Same as java.lang.Character.isISOControl().
[in] | c | The code point to be tested |
[out] | is_iso_control | true if the code point is an ISO control code |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_java_id_part | ( | i18n_uchar32 | c, |
i18n_ubool * | is_java_id_part | ||
) |
Determines if the specified character is permissible in a java identifier.
In addition to i18n_uchar_is_id_part(), true
for characters with general category "Sc" (currency symbols). Same as java.lang.Character.isJavaIdentifierPart().
[in] | c | The code point to be tested |
[out] | is_java_id_part | true if the code point may occur in a Java identifier |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_java_id_start | ( | i18n_uchar32 | c, |
i18n_ubool * | is_java_id_start | ||
) |
Determines if the specified character is permissible as the first character in a java identifier.
In addition to i18n_uchar_is_id_start(), true
for characters with general categories "Sc" (currency symbols) and "Pc" (connecting punctuation). Same as java.lang.Character.isJavaIdentifierStart().
[in] | c | The code point to be tested |
[out] | is_java_id_start | true if the code point may start a Java identifier |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_java_space_char | ( | i18n_uchar32 | c, |
i18n_ubool * | is_java_space_char | ||
) |
Determines if the specified code point is a space character according to Java.
true
for characters with general categories "z" (separators), which does not include control codes (e.g., tab or line feed). Same as java.lang.Character.isSpaceChar(). Note: There are several icu whitespace functions; please see the utils_i18n_uchar.h file documentation for a detailed comparison.
[in] | c | The code point to be tested |
[out] | is_java_space_char | true if the code point is a space character according to Character.is_spaceChar() |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_lower | ( | i18n_uchar32 | c, |
i18n_ubool * | is_lower | ||
) |
Determines whether the specified code point has the general category "Ll" (lowercase letter).
Same as java.lang.Character.isLowerCase(). This misses some characters that are also lowercase but have a different general category value. In order to include those, use I18N_UCHAR_LOWERCASE. In addition to being equivalent to a Java function, this also serves as a c/posix migration function. See the comments about c/posix character classification functions in the documentation at the top of this header file.
[in] | c | The code point to be tested |
[out] | is_lower | true if the code point is an Ll lowercase letter |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_lowercase | ( | i18n_uchar32 | c, |
i18n_ubool * | is_lowercase | ||
) |
Checks if a code point has the Lowercase Unicode property.
Same as i18n_uchar_has_binary_property(c, I18N_UCHAR_LOWERCASE). This is different from i18n_uchar_is_lower() function.
[in] | c | Code point to test |
[out] | is_lowercase | true if the code point has the I18N_UCHAR_LOWERCASE Unicode property, false otherwise |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_mirrored | ( | i18n_uchar32 | c, |
i18n_ubool * | is_mirrored | ||
) |
Determines whether the code point has the Bidi_Mirrored property.
This property is set for characters that are commonly used in right-to-left contexts and need to be displayed with a "mirrored" glyph. Same as java.lang.Character.isMirrored(). Same as I18N_UCHAR_BIDI_MIRRORED.
[in] | c | The code point to be tested |
[out] | is_mirrored | true if the character has the Bidi_Mirrored property |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_printable | ( | i18n_uchar32 | c, |
i18n_ubool * | is_printable | ||
) |
Determines whether the specified code point is a printable character.
true
for general categories other than "C" (controls).this is a c/posix migration function. See the comments about c/posix character classification functions in the documentation at the top of this header file.
[in] | c | The code point to be tested |
[out] | is_printable | true if the code point is a printable character |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_punct | ( | i18n_uchar32 | c, |
i18n_ubool * | is_punct | ||
) |
Determines whether the specified code point is a punctuation character.
true
for characters with general categories "P" (Punctuation).this is a c/posix migration function. See the comments about c/posix character classification functions in the documentation at the top of this header file.
[in] | c | The code point to be tested |
[out] | is_punct | true if the code point is a punctuation character |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_space | ( | i18n_uchar32 | c, |
i18n_ubool * | is_space | ||
) |
Determines if the specified character is a space character or not.
Note: there are several icu whitespace functions; please see the utils_i18n_uchar.h file documentation for a detailed comparison.this is a c/posix migration function. See the comments about c/posix character classification functions in the documentation at the top of this header file.
[in] | c | The character to be tested |
[out] | is_space | true if the character is a space character; false otherwise. |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_title | ( | i18n_uchar32 | c, |
i18n_ubool * | is_title | ||
) |
Determines whether the specified code point is a titlecase letter.
True for general category "Lt" (titlecase letter). Same as java.lang.Character.isTitleCase().
[in] | c | The code point to be tested |
[out] | is_title | true if the code point is an Lt titlecase letter |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_upper | ( | i18n_uchar32 | c, |
i18n_ubool * | is_upper | ||
) |
Determines whether the specified code point has the general category "Lu" (uppercase letter).
Same as java.lang.Character.isUpperCase(). This misses some characters that are also uppercase but have a different general category value. In order to include those, use I18N_UCHAR_UPPERCASE. In addition to being equivalent to a Java function, this also serves as a c/posix migration function. See the comments about c/posix character classification functions in the documentation at the top of this header file.
[in] | c | The code point to be tested |
[out] | is_upper | true if the code point is an Lu uppercase letter |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_uppercase | ( | i18n_uchar32 | c, |
i18n_ubool * | is_uppercase | ||
) |
Checks if a code point has the Uppercase Unicode property.
Same as i18n_uchar_has_binary_property(c, I18N_UCHAR_UPPERCASE). This is different from i18n_uchar_is_upper() function.
[in] | c | Code point to test |
[out] | is_uppercase | true if the code point has the I18N_UCHAR_UPPERCASE Unicode property, false otherwise |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_white_space | ( | i18n_uchar32 | c, |
i18n_ubool * | is_white_space | ||
) |
Checks if a code point has the White_Space Unicode property.
Same as i18n_uchar_has_binary_property(c, I18N_UCHAR_WHITE_SPACE). This is different from both i18n_uchar_is_space() and i18n_uchar_is_whitespace() functions. Note: There are several icu whitespace functions.
[in] | c | Code point to test |
[out] | is_white_space | true if the code point has the I18N_UCHAR_WHITE_SPACE Unicode property, false otherwise. |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_whitespace | ( | i18n_uchar32 | c, |
i18n_ubool * | is_whitespace | ||
) |
Determines if the specified code point is a whitespace character according to Java/ICU.
A character is considered to be a Java whitespace character if and only if it satisfies one of the following criteria:
It is a Unicode Separator character (categories "Z" = "Zs" or "Zl" or "Zp"), but is not also a non-breaking space (U+00A0 NBSP or U+2007 Figure Space or U+202F Narrow NBSP).
It is U+0009 HORIZONTAL TABULATION.
It is U+000A LINE FEED.
It is U+000B VERTICAL TABULATION.
It is U+000C FORM FEED.
It is U+000D CARRIAGE RETURN.
It is U+001C FILE SEPARATOR.
It is U+001D GROUP SEPARATOR.
It is U+001E RECORD SEPARATOR.
It is U+001F UNIT SEPARATOR.
This api tries to sync with the semantics of Java's java.lang.Character.isWhitespace(), but it may not return the exact same results because of the Unicode version difference. Note: unicode 4.0.1 changed u+200_b zero width space from a space separator (Zs) to a format control (Cf). Since then, i18n_uchar_is_whitespace(0x200b) returns false
. See Unicode 4.0.1 Note: there are several icu whitespace functions. Please see the uchar.h file documentation for a detailed comparison.
[in] | c | The code point to be tested |
[out] | is_whitespace | true if the code point is a whitespace character according to Java/ICU |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_is_xdigit | ( | i18n_uchar32 | c, |
i18n_ubool * | is_xdigit | ||
) |
Determines whether the specified code point is a hexadecimal digit.
This is equivalent to i18n_uchar_digit(c, 16) >= 0
. true
for characters with general category "Nd" (decimal digit numbers) as well as latin letters a-f and a-f in both ascii and fullwidth ascii. (that is, for letters with code points 0041..0046, 0061..0066, ff21..ff26, ff41..ff46.)
In order to narrow the definition of hexadecimal digits to only ascii characters, use (c <= 0x7f && i18n_uchar_is_xdigit(c))
. This is a c/posix migration function. See the comments about c/posix character classification functions in the documentation at the top of this header file.
[in] | c | The code point to be tested |
[out] | is_xdigit | true if the code point is a hexadecimal digit |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_to_lower | ( | i18n_uchar32 | c, |
i18n_uchar32 * | lower | ||
) |
Maps the given character to its lowercase equivalent.
If the character has no lowercase equivalent, the character itself is returned. This function only returns the simple, single-code point case mapping. Full case mappings should be used whenever possible because they produce better results by working on whole strings. They take into account the string context and the language and can map to a result string with a different length as appropriate. Full case mappings are applied by the string case mapping functions, see utils_i18n_ustring.h. See also the user guide chapter on c/posix migration: User Guide: Case Mappings Same as java.lang.Character.toLowerCase().
[in] | c | The code point to be mapped |
[out] | lower | The I18N_UCHAR_SIMPLE_LOWERCASE_MAPPING of the code point, if any; otherwise the code point itself. |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_to_title | ( | i18n_uchar32 | c, |
i18n_uchar32 * | title | ||
) |
Maps the given character to its titlecase equivalent.
If none is defined, the character itself is returned. This function only returns the simple, single-code point case mapping. Full case mappings should be used whenever possible because they produce better results by working on whole strings. They take into account the string context and the language and can map to a result string with a different length as appropriate. Full case mappings are applied by the string case mapping functions, see utils_i18n_ustring.h. See also the user guide chapter on c/posix migration: User Guide: Case Mappings Same as java.lang.Character.toTitleCase().
[in] | c | The code point to be mapped |
[out] | title | The I18N_UCHAR_SIMPLE_TITLECASE_MAPPING of the code point, if any; otherwise the code point itself. |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |
int i18n_uchar_to_upper | ( | i18n_uchar32 | c, |
i18n_uchar32 * | upper | ||
) |
Maps the given character to its uppercase equivalent.
If the character has no uppercase equivalent, the character itself is returned. This function only returns the simple, single-code point case mapping. Full case mappings should be used whenever possible because they produce better results by working on whole strings. They take into account the string context and the language and can map to a result string with a different length as appropriate. Full case mappings are applied by the string case mapping functions, see utils_i18n_ustring.h. See also the user guide chapter on c/posix migration: User Guide: Case Mappings Same as java.lang.Character.toUpperCase().
[in] | c | The code point to be mapped |
[out] | upper | The I18N_UCHAR_SIMPLE_UPPERCASE_MAPPING of the code point, if any; therwise the code point itself. |
0
on success, otherwise a negative error value I18N_ERROR_NONE | Successful |
I18N_ERROR_INVALID_PARAMETER | Invalid function parameter |