* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
-#include "glib.h"
-#include "gunichartables.h"
-
-#include <config.h>
+#include "config.h"
+#include <stdlib.h>
#include <stddef.h>
+#include <string.h>
+#include <locale.h>
-#define asize(x) ((sizeof (x)) / sizeof (x[0]))
+#include "gmem.h"
+#include "gstring.h"
+#include "gtestutils.h"
+#include "gtypes.h"
+#include "gunicode.h"
+#include "gunichartables.h"
+#include "gmirroringtable.h"
+#include "gscripttable.h"
+#include "gunicodeprivate.h"
+#ifdef G_OS_WIN32
+#include "gwin32.h"
+#endif
+
+#define ATTR_TABLE(Page) (((Page) <= G_UNICODE_LAST_PAGE_PART1) \
+ ? attr_table_part1[Page] \
+ : attr_table_part2[(Page) - 0xe00])
#define ATTTABLE(Page, Char) \
- ((attr_table[Page] == 0) ? 0 : (attr_table[Page][Char]))
+ ((ATTR_TABLE(Page) == G_UNICODE_MAX_TABLE_INDEX) ? 0 : (attr_data[ATTR_TABLE(Page)][Char]))
+
+#define TTYPE_PART1(Page, Char) \
+ ((type_table_part1[Page] >= G_UNICODE_MAX_TABLE_INDEX) \
+ ? (type_table_part1[Page] - G_UNICODE_MAX_TABLE_INDEX) \
+ : (type_data[type_table_part1[Page]][Char]))
+
+#define TTYPE_PART2(Page, Char) \
+ ((type_table_part2[Page] >= G_UNICODE_MAX_TABLE_INDEX) \
+ ? (type_table_part2[Page] - G_UNICODE_MAX_TABLE_INDEX) \
+ : (type_data[type_table_part2[Page]][Char]))
+
+#define TYPE(Char) \
+ (((Char) <= G_UNICODE_LAST_CHAR_PART1) \
+ ? TTYPE_PART1 ((Char) >> 8, (Char) & 0xff) \
+ : (((Char) >= 0xe0000 && (Char) <= G_UNICODE_LAST_CHAR) \
+ ? TTYPE_PART2 (((Char) - 0xe0000) >> 8, (Char) & 0xff) \
+ : G_UNICODE_UNASSIGNED))
+
+
+#define IS(Type, Class) (((guint)1 << (Type)) & (Class))
+#define OR(Type, Rest) (((guint)1 << (Type)) | (Rest))
+
-/* We cheat a bit and cast type values to (char *). We detect these
- using the &0xff trick. */
-#define TTYPE(Page, Char) \
- (((((int) type_table[Page]) & 0xff) == ((int) type_table[Page])) \
- ? ((int) (type_table[Page])) \
- : (type_table[Page][Char]))
-#define TYPE(Char) (((Char) > (G_UNICODE_LAST_CHAR)) ? G_UNICODE_UNASSIGNED : TTYPE ((Char) >> 8, (Char) & 0xff))
+#define ISALPHA(Type) IS ((Type), \
+ OR (G_UNICODE_LOWERCASE_LETTER, \
+ OR (G_UNICODE_UPPERCASE_LETTER, \
+ OR (G_UNICODE_TITLECASE_LETTER, \
+ OR (G_UNICODE_MODIFIER_LETTER, \
+ OR (G_UNICODE_OTHER_LETTER, 0))))))
-#define ISDIGIT(Type) ((Type) == G_UNICODE_DECIMAL_NUMBER \
- || (Type) == G_UNICODE_LETTER_NUMBER \
- || (Type) == G_UNICODE_OTHER_NUMBER)
+#define ISALDIGIT(Type) IS ((Type), \
+ OR (G_UNICODE_DECIMAL_NUMBER, \
+ OR (G_UNICODE_LETTER_NUMBER, \
+ OR (G_UNICODE_OTHER_NUMBER, \
+ OR (G_UNICODE_LOWERCASE_LETTER, \
+ OR (G_UNICODE_UPPERCASE_LETTER, \
+ OR (G_UNICODE_TITLECASE_LETTER, \
+ OR (G_UNICODE_MODIFIER_LETTER, \
+ OR (G_UNICODE_OTHER_LETTER, 0)))))))))
-#define ISALPHA(Type) ((Type) == G_UNICODE_LOWERCASE_LETTER \
- || (Type) == G_UNICODE_UPPERCASE_LETTER \
- || (Type) == G_UNICODE_TITLECASE_LETTER \
- || (Type) == G_UNICODE_MODIFIER_LETTER \
- || (Type) == G_UNICODE_OTHER_LETTER)
+#define ISMARK(Type) IS ((Type), \
+ OR (G_UNICODE_NON_SPACING_MARK, \
+ OR (G_UNICODE_SPACING_MARK, \
+ OR (G_UNICODE_ENCLOSING_MARK, 0))))
+#define ISZEROWIDTHTYPE(Type) IS ((Type), \
+ OR (G_UNICODE_NON_SPACING_MARK, \
+ OR (G_UNICODE_ENCLOSING_MARK, \
+ OR (G_UNICODE_FORMAT, 0))))
+
+/**
+ * g_unichar_isalnum:
+ * @c: a Unicode character
+ *
+ * Determines whether a character is alphanumeric.
+ * Given some UTF-8 text, obtain a character value
+ * with g_utf8_get_char().
+ *
+ * Returns: %TRUE if @c is an alphanumeric character
+ **/
gboolean
g_unichar_isalnum (gunichar c)
{
- int t = TYPE (c);
- return ISDIGIT (t) || ISALPHA (t);
+ return ISALDIGIT (TYPE (c)) ? TRUE : FALSE;
}
+/**
+ * g_unichar_isalpha:
+ * @c: a Unicode character
+ *
+ * Determines whether a character is alphabetic (i.e. a letter).
+ * Given some UTF-8 text, obtain a character value with
+ * g_utf8_get_char().
+ *
+ * Returns: %TRUE if @c is an alphabetic character
+ **/
gboolean
g_unichar_isalpha (gunichar c)
{
- int t = TYPE (c);
- return ISALPHA (t);
+ return ISALPHA (TYPE (c)) ? TRUE : FALSE;
}
+
+/**
+ * g_unichar_iscntrl:
+ * @c: a Unicode character
+ *
+ * Determines whether a character is a control character.
+ * Given some UTF-8 text, obtain a character value with
+ * g_utf8_get_char().
+ *
+ * Returns: %TRUE if @c is a control character
+ **/
gboolean
g_unichar_iscntrl (gunichar c)
{
return TYPE (c) == G_UNICODE_CONTROL;
}
+/**
+ * g_unichar_isdigit:
+ * @c: a Unicode character
+ *
+ * Determines whether a character is numeric (i.e. a digit). This
+ * covers ASCII 0-9 and also digits in other languages/scripts. Given
+ * some UTF-8 text, obtain a character value with g_utf8_get_char().
+ *
+ * Returns: %TRUE if @c is a digit
+ **/
gboolean
g_unichar_isdigit (gunichar c)
{
return TYPE (c) == G_UNICODE_DECIMAL_NUMBER;
}
+
+/**
+ * g_unichar_isgraph:
+ * @c: a Unicode character
+ *
+ * Determines whether a character is printable and not a space
+ * (returns %FALSE for control characters, format characters, and
+ * spaces). g_unichar_isprint() is similar, but returns %TRUE for
+ * spaces. Given some UTF-8 text, obtain a character value with
+ * g_utf8_get_char().
+ *
+ * Returns: %TRUE if @c is printable unless it's a space
+ **/
gboolean
g_unichar_isgraph (gunichar c)
{
- int t = TYPE (c);
- return (t != G_UNICODE_CONTROL
- && t != G_UNICODE_FORMAT
- && t != G_UNICODE_UNASSIGNED
- && t != G_UNICODE_PRIVATE_USE
- && t != G_UNICODE_SURROGATE
- && t != G_UNICODE_SPACE_SEPARATOR);
+ return !IS (TYPE(c),
+ OR (G_UNICODE_CONTROL,
+ OR (G_UNICODE_FORMAT,
+ OR (G_UNICODE_UNASSIGNED,
+ OR (G_UNICODE_SURROGATE,
+ OR (G_UNICODE_SPACE_SEPARATOR,
+ 0))))));
}
+/**
+ * g_unichar_islower:
+ * @c: a Unicode character
+ *
+ * Determines whether a character is a lowercase letter.
+ * Given some UTF-8 text, obtain a character value with
+ * g_utf8_get_char().
+ *
+ * Returns: %TRUE if @c is a lowercase letter
+ **/
gboolean
g_unichar_islower (gunichar c)
{
return TYPE (c) == G_UNICODE_LOWERCASE_LETTER;
}
+
+/**
+ * g_unichar_isprint:
+ * @c: a Unicode character
+ *
+ * Determines whether a character is printable.
+ * Unlike g_unichar_isgraph(), returns %TRUE for spaces.
+ * Given some UTF-8 text, obtain a character value with
+ * g_utf8_get_char().
+ *
+ * Returns: %TRUE if @c is printable
+ **/
gboolean
g_unichar_isprint (gunichar c)
{
- int t = TYPE (c);
- return (t != G_UNICODE_CONTROL
- && t != G_UNICODE_FORMAT
- && t != G_UNICODE_UNASSIGNED
- && t != G_UNICODE_PRIVATE_USE
- && t != G_UNICODE_SURROGATE);
+ return !IS (TYPE(c),
+ OR (G_UNICODE_CONTROL,
+ OR (G_UNICODE_FORMAT,
+ OR (G_UNICODE_UNASSIGNED,
+ OR (G_UNICODE_SURROGATE,
+ 0)))));
}
+/**
+ * g_unichar_ispunct:
+ * @c: a Unicode character
+ *
+ * Determines whether a character is punctuation or a symbol.
+ * Given some UTF-8 text, obtain a character value with
+ * g_utf8_get_char().
+ *
+ * Returns: %TRUE if @c is a punctuation or symbol character
+ **/
gboolean
g_unichar_ispunct (gunichar c)
{
- int t = TYPE (c);
- return (t == G_UNICODE_CONNECT_PUNCTUATION || t == G_UNICODE_DASH_PUNCTUATION
- || t == G_UNICODE_CLOSE_PUNCTUATION || t == G_UNICODE_FINAL_PUNCTUATION
- || t == G_UNICODE_INITIAL_PUNCTUATION || t == G_UNICODE_OTHER_PUNCTUATION
- || t == G_UNICODE_OPEN_PUNCTUATION);
+ return IS (TYPE(c),
+ OR (G_UNICODE_CONNECT_PUNCTUATION,
+ OR (G_UNICODE_DASH_PUNCTUATION,
+ OR (G_UNICODE_CLOSE_PUNCTUATION,
+ OR (G_UNICODE_FINAL_PUNCTUATION,
+ OR (G_UNICODE_INITIAL_PUNCTUATION,
+ OR (G_UNICODE_OTHER_PUNCTUATION,
+ OR (G_UNICODE_OPEN_PUNCTUATION,
+ OR (G_UNICODE_CURRENCY_SYMBOL,
+ OR (G_UNICODE_MODIFIER_SYMBOL,
+ OR (G_UNICODE_MATH_SYMBOL,
+ OR (G_UNICODE_OTHER_SYMBOL,
+ 0)))))))))))) ? TRUE : FALSE;
}
+/**
+ * g_unichar_isspace:
+ * @c: a Unicode character
+ *
+ * Determines whether a character is a space, tab, or line separator
+ * (newline, carriage return, etc.). Given some UTF-8 text, obtain a
+ * character value with g_utf8_get_char().
+ *
+ * (Note: don't use this to do word breaking; you have to use
+ * Pango or equivalent to get word breaking right, the algorithm
+ * is fairly complex.)
+ *
+ * Returns: %TRUE if @c is a space character
+ **/
gboolean
g_unichar_isspace (gunichar c)
{
- int t = TYPE (c);
- return (t == G_UNICODE_SPACE_SEPARATOR || t == G_UNICODE_LINE_SEPARATOR
- || t == G_UNICODE_PARAGRAPH_SEPARATOR);
+ switch (c)
+ {
+ /* special-case these since Unicode thinks they are not spaces */
+ case '\t':
+ case '\n':
+ case '\r':
+ case '\f':
+ return TRUE;
+ break;
+
+ default:
+ {
+ return IS (TYPE(c),
+ OR (G_UNICODE_SPACE_SEPARATOR,
+ OR (G_UNICODE_LINE_SEPARATOR,
+ OR (G_UNICODE_PARAGRAPH_SEPARATOR,
+ 0)))) ? TRUE : FALSE;
+ }
+ break;
+ }
+}
+
+/**
+ * g_unichar_ismark:
+ * @c: a Unicode character
+ *
+ * Determines whether a character is a mark (non-spacing mark,
+ * combining mark, or enclosing mark in Unicode speak).
+ * Given some UTF-8 text, obtain a character value
+ * with g_utf8_get_char().
+ *
+ * Note: in most cases where isalpha characters are allowed,
+ * ismark characters should be allowed to as they are essential
+ * for writing most European languages as well as many non-Latin
+ * scripts.
+ *
+ * Returns: %TRUE if @c is a mark character
+ *
+ * Since: 2.14
+ **/
+gboolean
+g_unichar_ismark (gunichar c)
+{
+ return ISMARK (TYPE (c));
}
/**
* g_unichar_isupper:
- * @c: a unicode character
+ * @c: a Unicode character
*
* Determines if a character is uppercase.
*
- * Return value:
+ * Returns: %TRUE if @c is an uppercase character
**/
gboolean
g_unichar_isupper (gunichar c)
/**
* g_unichar_istitle:
- * @c: a unicode character
+ * @c: a Unicode character
*
* Determines if a character is titlecase. Some characters in
* Unicode which are composites, such as the DZ digraph
* have three case variants instead of just two. The titlecase
* form is used at the beginning of a word where only the
* first letter is capitalized. The titlecase form of the DZ
- * digraph is U+01F2 LATIN CAPITAL LETTTER D WITH SMALL LETTER Z
+ * digraph is U+01F2 LATIN CAPITAL LETTTER D WITH SMALL LETTER Z.
*
- * Return value: %TRUE if the character is titlecase.
+ * Returns: %TRUE if the character is titlecase
**/
gboolean
g_unichar_istitle (gunichar c)
{
unsigned int i;
- for (i = 0; i < asize (title_table); ++i)
+ for (i = 0; i < G_N_ELEMENTS (title_table); ++i)
if (title_table[i][0] == c)
- return 1;
- return 0;
+ return TRUE;
+ return FALSE;
}
/**
* g_unichar_isxdigit:
- * @c: a unicode character.
+ * @c: a Unicode character.
*
- * Determines if a characters is a hexidecimal digit
+ * Determines if a character is a hexidecimal digit.
*
- * Return value: %TRUE if the character is a hexidecimal digit.
+ * Returns: %TRUE if the character is a hexadecimal digit
**/
gboolean
g_unichar_isxdigit (gunichar c)
{
- int t = TYPE (c);
return ((c >= 'a' && c <= 'f')
|| (c >= 'A' && c <= 'F')
- || ISDIGIT (t));
+ || (TYPE (c) == G_UNICODE_DECIMAL_NUMBER));
}
/**
* g_unichar_isdefined:
- * @c: a unicode character
+ * @c: a Unicode character
*
* Determines if a given character is assigned in the Unicode
- * standard
+ * standard.
*
- * Return value: %TRUE if the character has an assigned value.
+ * Returns: %TRUE if the character has an assigned value
**/
gboolean
g_unichar_isdefined (gunichar c)
{
- int t = TYPE (c);
- return t != G_UNICODE_UNASSIGNED;
+ return !IS (TYPE(c),
+ OR (G_UNICODE_UNASSIGNED,
+ OR (G_UNICODE_SURROGATE,
+ 0)));
+}
+
+/**
+ * g_unichar_iszerowidth:
+ * @c: a Unicode character
+ *
+ * Determines if a given character typically takes zero width when rendered.
+ * The return value is %TRUE for all non-spacing and enclosing marks
+ * (e.g., combining accents), format characters, zero-width
+ * space, but not U+00AD SOFT HYPHEN.
+ *
+ * A typical use of this function is with one of g_unichar_iswide() or
+ * g_unichar_iswide_cjk() to determine the number of cells a string occupies
+ * when displayed on a grid display (terminals). However, note that not all
+ * terminals support zero-width rendering of zero-width marks.
+ *
+ * Returns: %TRUE if the character has zero width
+ *
+ * Since: 2.14
+ **/
+gboolean
+g_unichar_iszerowidth (gunichar c)
+{
+ if (G_UNLIKELY (c == 0x00AD))
+ return FALSE;
+
+ if (G_UNLIKELY (ISZEROWIDTHTYPE (TYPE (c))))
+ return TRUE;
+
+ if (G_UNLIKELY ((c >= 0x1160 && c < 0x1200) ||
+ c == 0x200B))
+ return TRUE;
+
+ return FALSE;
+}
+
+static int
+interval_compare (const void *key, const void *elt)
+{
+ gunichar c = GPOINTER_TO_UINT (key);
+ struct Interval *interval = (struct Interval *)elt;
+
+ if (c < interval->start)
+ return -1;
+ if (c > interval->end)
+ return +1;
+
+ return 0;
}
/**
* g_unichar_iswide:
- * @c: a unicode character
+ * @c: a Unicode character
*
* Determines if a character is typically rendered in a double-width
* cell.
*
- * Return value: %TRUE if the character is wide.
+ * Returns: %TRUE if the character is wide
**/
-/* This function stolen from Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>. */
gboolean
g_unichar_iswide (gunichar c)
{
- if (c < 0x1100)
- return 0;
+ if (bsearch (GUINT_TO_POINTER (c),
+ g_unicode_width_table_wide,
+ G_N_ELEMENTS (g_unicode_width_table_wide),
+ sizeof g_unicode_width_table_wide[0],
+ interval_compare))
+ return TRUE;
+
+ return FALSE;
+}
+
+
+/**
+ * g_unichar_iswide_cjk:
+ * @c: a Unicode character
+ *
+ * Determines if a character is typically rendered in a double-width
+ * cell under legacy East Asian locales. If a character is wide according to
+ * g_unichar_iswide(), then it is also reported wide with this function, but
+ * the converse is not necessarily true. See the
+ * [Unicode Standard Annex #11](http://www.unicode.org/reports/tr11/)
+ * for details.
+ *
+ * If a character passes the g_unichar_iswide() test then it will also pass
+ * this test, but not the other way around. Note that some characters may
+ * pass both this test and g_unichar_iszerowidth().
+ *
+ * Returns: %TRUE if the character is wide in legacy East Asian locales
+ *
+ * Since: 2.12
+ */
+gboolean
+g_unichar_iswide_cjk (gunichar c)
+{
+ if (g_unichar_iswide (c))
+ return TRUE;
+
+ if (bsearch (GUINT_TO_POINTER (c),
+ g_unicode_width_table_ambiguous,
+ G_N_ELEMENTS (g_unicode_width_table_ambiguous),
+ sizeof g_unicode_width_table_ambiguous[0],
+ interval_compare))
+ return TRUE;
- return ((c >= 0x1100 && c <= 0x115f) /* Hangul Jamo */
- || (c >= 0x2e80 && c <= 0xa4cf && (c & ~0x0011) != 0x300a &&
- c != 0x303f) /* CJK ... Yi */
- || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
- || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
- || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
- || (c >= 0xff00 && c <= 0xff5f) /* Fullwidth Forms */
- || (c >= 0xffe0 && c <= 0xffe6));
+ return FALSE;
}
+
/**
* g_unichar_toupper:
- * @c: a unicode character
+ * @c: a Unicode character
*
- * Convert a character to uppercase.
+ * Converts a character to uppercase.
*
- * Return value: the result of converting @c to uppercase.
+ * Returns: the result of converting @c to uppercase.
* If @c is not an lowercase or titlecase character,
- * @c is returned unchanged.
+ * or has no upper case equivalent @c is returned unchanged.
**/
gunichar
g_unichar_toupper (gunichar c)
{
int t = TYPE (c);
if (t == G_UNICODE_LOWERCASE_LETTER)
- return ATTTABLE (c >> 8, c & 0xff);
+ {
+ gunichar val = ATTTABLE (c >> 8, c & 0xff);
+ if (val >= 0x1000000)
+ {
+ const gchar *p = special_case_table + val - 0x1000000;
+ val = g_utf8_get_char (p);
+ }
+ /* Some lowercase letters, e.g., U+000AA, FEMININE ORDINAL INDICATOR,
+ * do not have an uppercase equivalent, in which case val will be
+ * zero.
+ */
+ return val ? val : c;
+ }
else if (t == G_UNICODE_TITLECASE_LETTER)
{
unsigned int i;
- for (i = 0; i < asize (title_table); ++i)
+ for (i = 0; i < G_N_ELEMENTS (title_table); ++i)
{
if (title_table[i][0] == c)
- return title_table[i][1];
+ return title_table[i][1] ? title_table[i][1] : c;
}
}
return c;
/**
* g_unichar_tolower:
- * @c: a unicode character.
+ * @c: a Unicode character.
*
- * Convert a character to lower case
+ * Converts a character to lower case.
*
-e * Return value: the result of converting @c to lower case.
+ * Returns: the result of converting @c to lower case.
* If @c is not an upperlower or titlecase character,
- * @c is returned unchanged.
+ * or has no lowercase equivalent @c is returned unchanged.
**/
gunichar
g_unichar_tolower (gunichar c)
{
int t = TYPE (c);
if (t == G_UNICODE_UPPERCASE_LETTER)
- return ATTTABLE (c >> 8, c & 0xff);
+ {
+ gunichar val = ATTTABLE (c >> 8, c & 0xff);
+ if (val >= 0x1000000)
+ {
+ const gchar *p = special_case_table + val - 0x1000000;
+ return g_utf8_get_char (p);
+ }
+ else
+ {
+ /* Not all uppercase letters are guaranteed to have a lowercase
+ * equivalent. If this is the case, val will be zero. */
+ return val ? val : c;
+ }
+ }
else if (t == G_UNICODE_TITLECASE_LETTER)
{
unsigned int i;
- for (i = 0; i < asize (title_table); ++i)
+ for (i = 0; i < G_N_ELEMENTS (title_table); ++i)
{
if (title_table[i][0] == c)
return title_table[i][2];
/**
* g_unichar_totitle:
- * @c: a unicode character
+ * @c: a Unicode character
*
- * Convert a character to the titlecase
+ * Converts a character to the titlecase.
*
- * Return value: the result of converting @c to titlecase.
+ * Returns: the result of converting @c to titlecase.
* If @c is not an uppercase or lowercase character,
* @c is returned unchanged.
**/
g_unichar_totitle (gunichar c)
{
unsigned int i;
- for (i = 0; i < asize (title_table); ++i)
+ for (i = 0; i < G_N_ELEMENTS (title_table); ++i)
{
if (title_table[i][0] == c || title_table[i][1] == c
|| title_table[i][2] == c)
return title_table[i][0];
}
- return (TYPE (c) == G_UNICODE_LOWERCASE_LETTER
- ? ATTTABLE (c >> 8, c & 0xff)
- : c);
+
+ if (TYPE (c) == G_UNICODE_LOWERCASE_LETTER)
+ return g_unichar_toupper (c);
+
+ return c;
}
/**
- * g_unichar_xdigit_value:
- * @c: a unicode character
+ * g_unichar_digit_value:
+ * @c: a Unicode character
*
* Determines the numeric value of a character as a decimal
- * degital.
+ * digit.
*
- * Return value: If @c is a decimal digit (according to
- * `g_unichar_isdigit'), its numeric value. Otherwise, -1.
+ * Returns: If @c is a decimal digit (according to
+ * g_unichar_isdigit()), its numeric value. Otherwise, -1.
**/
int
g_unichar_digit_value (gunichar c)
/**
* g_unichar_xdigit_value:
- * @c: a unicode character
+ * @c: a Unicode character
*
* Determines the numeric value of a character as a hexidecimal
- * degital.
+ * digit.
*
- * Return value: If @c is a hex digit (according to
- * `g_unichar_isxdigit'), its numeric value. Otherwise, -1.
+ * Returns: If @c is a hex digit (according to
+ * g_unichar_isxdigit()), its numeric value. Otherwise, -1.
**/
int
g_unichar_xdigit_value (gunichar c)
{
if (c >= 'A' && c <= 'F')
- return c - 'A' + 1;
+ return c - 'A' + 10;
if (c >= 'a' && c <= 'f')
- return c - 'a' + 1;
+ return c - 'a' + 10;
if (TYPE (c) == G_UNICODE_DECIMAL_NUMBER)
return ATTTABLE (c >> 8, c & 0xff);
return -1;
/**
* g_unichar_type:
- * @c: a unicode character
+ * @c: a Unicode character
*
- * Classifies a unicode character by type.
+ * Classifies a Unicode character by type.
*
- * Return value: the typ of the character.
+ * Returns: the type of the character.
**/
GUnicodeType
g_unichar_type (gunichar c)
{
return TYPE (c);
}
+
+/*
+ * Case mapping functions
+ */
+
+typedef enum {
+ LOCALE_NORMAL,
+ LOCALE_TURKIC,
+ LOCALE_LITHUANIAN
+} LocaleType;
+
+static LocaleType
+get_locale_type (void)
+{
+#ifdef G_OS_WIN32
+ char *tem = g_win32_getlocale ();
+ char locale[2];
+
+ locale[0] = tem[0];
+ locale[1] = tem[1];
+ g_free (tem);
+#else
+ const char *locale = setlocale (LC_CTYPE, NULL);
+
+ if (locale == NULL)
+ return LOCALE_NORMAL;
+#endif
+
+ switch (locale[0])
+ {
+ case 'a':
+ if (locale[1] == 'z')
+ return LOCALE_TURKIC;
+ break;
+ case 'l':
+ if (locale[1] == 't')
+ return LOCALE_LITHUANIAN;
+ break;
+ case 't':
+ if (locale[1] == 'r')
+ return LOCALE_TURKIC;
+ break;
+ }
+
+ return LOCALE_NORMAL;
+}
+
+static gint
+output_marks (const char **p_inout,
+ char *out_buffer,
+ gboolean remove_dot)
+{
+ const char *p = *p_inout;
+ gint len = 0;
+
+ while (*p)
+ {
+ gunichar c = g_utf8_get_char (p);
+
+ if (ISMARK (TYPE (c)))
+ {
+ if (!remove_dot || c != 0x307 /* COMBINING DOT ABOVE */)
+ len += g_unichar_to_utf8 (c, out_buffer ? out_buffer + len : NULL);
+ p = g_utf8_next_char (p);
+ }
+ else
+ break;
+ }
+
+ *p_inout = p;
+ return len;
+}
+
+static gint
+output_special_case (gchar *out_buffer,
+ int offset,
+ int type,
+ int which)
+{
+ const gchar *p = special_case_table + offset;
+ gint len;
+
+ if (type != G_UNICODE_TITLECASE_LETTER)
+ p = g_utf8_next_char (p);
+
+ if (which == 1)
+ p += strlen (p) + 1;
+
+ len = strlen (p);
+ if (out_buffer)
+ memcpy (out_buffer, p, len);
+
+ return len;
+}
+
+static gsize
+real_toupper (const gchar *str,
+ gssize max_len,
+ gchar *out_buffer,
+ LocaleType locale_type)
+{
+ const gchar *p = str;
+ const char *last = NULL;
+ gsize len = 0;
+ gboolean last_was_i = FALSE;
+
+ while ((max_len < 0 || p < str + max_len) && *p)
+ {
+ gunichar c = g_utf8_get_char (p);
+ int t = TYPE (c);
+ gunichar val;
+
+ last = p;
+ p = g_utf8_next_char (p);
+
+ if (locale_type == LOCALE_LITHUANIAN)
+ {
+ if (c == 'i')
+ last_was_i = TRUE;
+ else
+ {
+ if (last_was_i)
+ {
+ /* Nasty, need to remove any dot above. Though
+ * I think only E WITH DOT ABOVE occurs in practice
+ * which could simplify this considerably.
+ */
+ gsize decomp_len, i;
+ gunichar decomp[G_UNICHAR_MAX_DECOMPOSITION_LENGTH];
+
+ decomp_len = g_unichar_fully_decompose (c, FALSE, decomp, G_N_ELEMENTS (decomp));
+ for (i=0; i < decomp_len; i++)
+ {
+ if (decomp[i] != 0x307 /* COMBINING DOT ABOVE */)
+ len += g_unichar_to_utf8 (g_unichar_toupper (decomp[i]), out_buffer ? out_buffer + len : NULL);
+ }
+
+ len += output_marks (&p, out_buffer ? out_buffer + len : NULL, TRUE);
+
+ continue;
+ }
+
+ if (!ISMARK (t))
+ last_was_i = FALSE;
+ }
+ }
+
+ if (locale_type == LOCALE_TURKIC && c == 'i')
+ {
+ /* i => LATIN CAPITAL LETTER I WITH DOT ABOVE */
+ len += g_unichar_to_utf8 (0x130, out_buffer ? out_buffer + len : NULL);
+ }
+ else if (c == 0x0345) /* COMBINING GREEK YPOGEGRAMMENI */
+ {
+ /* Nasty, need to move it after other combining marks .. this would go away if
+ * we normalized first.
+ */
+ len += output_marks (&p, out_buffer ? out_buffer + len : NULL, FALSE);
+
+ /* And output as GREEK CAPITAL LETTER IOTA */
+ len += g_unichar_to_utf8 (0x399, out_buffer ? out_buffer + len : NULL);
+ }
+ else if (IS (t,
+ OR (G_UNICODE_LOWERCASE_LETTER,
+ OR (G_UNICODE_TITLECASE_LETTER,
+ 0))))
+ {
+ val = ATTTABLE (c >> 8, c & 0xff);
+
+ if (val >= 0x1000000)
+ {
+ len += output_special_case (out_buffer ? out_buffer + len : NULL, val - 0x1000000, t,
+ t == G_UNICODE_LOWERCASE_LETTER ? 0 : 1);
+ }
+ else
+ {
+ if (t == G_UNICODE_TITLECASE_LETTER)
+ {
+ unsigned int i;
+ for (i = 0; i < G_N_ELEMENTS (title_table); ++i)
+ {
+ if (title_table[i][0] == c)
+ {
+ val = title_table[i][1];
+ break;
+ }
+ }
+ }
+
+ /* Some lowercase letters, e.g., U+000AA, FEMININE ORDINAL INDICATOR,
+ * do not have an uppercase equivalent, in which case val will be
+ * zero. */
+ len += g_unichar_to_utf8 (val ? val : c, out_buffer ? out_buffer + len : NULL);
+ }
+ }
+ else
+ {
+ gsize char_len = g_utf8_skip[*(guchar *)last];
+
+ if (out_buffer)
+ memcpy (out_buffer + len, last, char_len);
+
+ len += char_len;
+ }
+
+ }
+
+ return len;
+}
+
+/**
+ * g_utf8_strup:
+ * @str: a UTF-8 encoded string
+ * @len: length of @str, in bytes, or -1 if @str is nul-terminated.
+ *
+ * Converts all Unicode characters in the string that have a case
+ * to uppercase. The exact manner that this is done depends
+ * on the current locale, and may result in the number of
+ * characters in the string increasing. (For instance, the
+ * German ess-zet will be changed to SS.)
+ *
+ * Returns: a newly allocated string, with all characters
+ * converted to uppercase.
+ **/
+gchar *
+g_utf8_strup (const gchar *str,
+ gssize len)
+{
+ gsize result_len;
+ LocaleType locale_type;
+ gchar *result;
+
+ g_return_val_if_fail (str != NULL, NULL);
+
+ locale_type = get_locale_type ();
+
+ /*
+ * We use a two pass approach to keep memory management simple
+ */
+ result_len = real_toupper (str, len, NULL, locale_type);
+ result = g_malloc (result_len + 1);
+ real_toupper (str, len, result, locale_type);
+ result[result_len] = '\0';
+
+ return result;
+}
+
+/* traverses the string checking for characters with combining class == 230
+ * until a base character is found */
+static gboolean
+has_more_above (const gchar *str)
+{
+ const gchar *p = str;
+ gint combining_class;
+
+ while (*p)
+ {
+ combining_class = g_unichar_combining_class (g_utf8_get_char (p));
+ if (combining_class == 230)
+ return TRUE;
+ else if (combining_class == 0)
+ break;
+
+ p = g_utf8_next_char (p);
+ }
+
+ return FALSE;
+}
+
+static gsize
+real_tolower (const gchar *str,
+ gssize max_len,
+ gchar *out_buffer,
+ LocaleType locale_type)
+{
+ const gchar *p = str;
+ const char *last = NULL;
+ gsize len = 0;
+
+ while ((max_len < 0 || p < str + max_len) && *p)
+ {
+ gunichar c = g_utf8_get_char (p);
+ int t = TYPE (c);
+ gunichar val;
+
+ last = p;
+ p = g_utf8_next_char (p);
+
+ if (locale_type == LOCALE_TURKIC && c == 'I')
+ {
+ if (g_utf8_get_char (p) == 0x0307)
+ {
+ /* I + COMBINING DOT ABOVE => i (U+0069) */
+ len += g_unichar_to_utf8 (0x0069, out_buffer ? out_buffer + len : NULL);
+ p = g_utf8_next_char (p);
+ }
+ else
+ {
+ /* I => LATIN SMALL LETTER DOTLESS I */
+ len += g_unichar_to_utf8 (0x131, out_buffer ? out_buffer + len : NULL);
+ }
+ }
+ /* Introduce an explicit dot above when lowercasing capital I's and J's
+ * whenever there are more accents above. [SpecialCasing.txt] */
+ else if (locale_type == LOCALE_LITHUANIAN &&
+ (c == 0x00cc || c == 0x00cd || c == 0x0128))
+ {
+ len += g_unichar_to_utf8 (0x0069, out_buffer ? out_buffer + len : NULL);
+ len += g_unichar_to_utf8 (0x0307, out_buffer ? out_buffer + len : NULL);
+
+ switch (c)
+ {
+ case 0x00cc:
+ len += g_unichar_to_utf8 (0x0300, out_buffer ? out_buffer + len : NULL);
+ break;
+ case 0x00cd:
+ len += g_unichar_to_utf8 (0x0301, out_buffer ? out_buffer + len : NULL);
+ break;
+ case 0x0128:
+ len += g_unichar_to_utf8 (0x0303, out_buffer ? out_buffer + len : NULL);
+ break;
+ }
+ }
+ else if (locale_type == LOCALE_LITHUANIAN &&
+ (c == 'I' || c == 'J' || c == 0x012e) &&
+ has_more_above (p))
+ {
+ len += g_unichar_to_utf8 (g_unichar_tolower (c), out_buffer ? out_buffer + len : NULL);
+ len += g_unichar_to_utf8 (0x0307, out_buffer ? out_buffer + len : NULL);
+ }
+ else if (c == 0x03A3) /* GREEK CAPITAL LETTER SIGMA */
+ {
+ if ((max_len < 0 || p < str + max_len) && *p)
+ {
+ gunichar next_c = g_utf8_get_char (p);
+ int next_type = TYPE(next_c);
+
+ /* SIGMA mapps differently depending on whether it is
+ * final or not. The following simplified test would
+ * fail in the case of combining marks following the
+ * sigma, but I don't think that occurs in real text.
+ * The test here matches that in ICU.
+ */
+ if (ISALPHA (next_type)) /* Lu,Ll,Lt,Lm,Lo */
+ val = 0x3c3; /* GREEK SMALL SIGMA */
+ else
+ val = 0x3c2; /* GREEK SMALL FINAL SIGMA */
+ }
+ else
+ val = 0x3c2; /* GREEK SMALL FINAL SIGMA */
+
+ len += g_unichar_to_utf8 (val, out_buffer ? out_buffer + len : NULL);
+ }
+ else if (IS (t,
+ OR (G_UNICODE_UPPERCASE_LETTER,
+ OR (G_UNICODE_TITLECASE_LETTER,
+ 0))))
+ {
+ val = ATTTABLE (c >> 8, c & 0xff);
+
+ if (val >= 0x1000000)
+ {
+ len += output_special_case (out_buffer ? out_buffer + len : NULL, val - 0x1000000, t, 0);
+ }
+ else
+ {
+ if (t == G_UNICODE_TITLECASE_LETTER)
+ {
+ unsigned int i;
+ for (i = 0; i < G_N_ELEMENTS (title_table); ++i)
+ {
+ if (title_table[i][0] == c)
+ {
+ val = title_table[i][2];
+ break;
+ }
+ }
+ }
+
+ /* Not all uppercase letters are guaranteed to have a lowercase
+ * equivalent. If this is the case, val will be zero. */
+ len += g_unichar_to_utf8 (val ? val : c, out_buffer ? out_buffer + len : NULL);
+ }
+ }
+ else
+ {
+ gsize char_len = g_utf8_skip[*(guchar *)last];
+
+ if (out_buffer)
+ memcpy (out_buffer + len, last, char_len);
+
+ len += char_len;
+ }
+
+ }
+
+ return len;
+}
+
+/**
+ * g_utf8_strdown:
+ * @str: a UTF-8 encoded string
+ * @len: length of @str, in bytes, or -1 if @str is nul-terminated.
+ *
+ * Converts all Unicode characters in the string that have a case
+ * to lowercase. The exact manner that this is done depends
+ * on the current locale, and may result in the number of
+ * characters in the string changing.
+ *
+ * Returns: a newly allocated string, with all characters
+ * converted to lowercase.
+ **/
+gchar *
+g_utf8_strdown (const gchar *str,
+ gssize len)
+{
+ gsize result_len;
+ LocaleType locale_type;
+ gchar *result;
+
+ g_return_val_if_fail (str != NULL, NULL);
+
+ locale_type = get_locale_type ();
+
+ /*
+ * We use a two pass approach to keep memory management simple
+ */
+ result_len = real_tolower (str, len, NULL, locale_type);
+ result = g_malloc (result_len + 1);
+ real_tolower (str, len, result, locale_type);
+ result[result_len] = '\0';
+
+ return result;
+}
+
+/**
+ * g_utf8_casefold:
+ * @str: a UTF-8 encoded string
+ * @len: length of @str, in bytes, or -1 if @str is nul-terminated.
+ *
+ * Converts a string into a form that is independent of case. The
+ * result will not correspond to any particular case, but can be
+ * compared for equality or ordered with the results of calling
+ * g_utf8_casefold() on other strings.
+ *
+ * Note that calling g_utf8_casefold() followed by g_utf8_collate() is
+ * only an approximation to the correct linguistic case insensitive
+ * ordering, though it is a fairly good one. Getting this exactly
+ * right would require a more sophisticated collation function that
+ * takes case sensitivity into account. GLib does not currently
+ * provide such a function.
+ *
+ * Returns: a newly allocated string, that is a
+ * case independent form of @str.
+ **/
+gchar *
+g_utf8_casefold (const gchar *str,
+ gssize len)
+{
+ GString *result;
+ const char *p;
+
+ g_return_val_if_fail (str != NULL, NULL);
+
+ result = g_string_new (NULL);
+ p = str;
+ while ((len < 0 || p < str + len) && *p)
+ {
+ gunichar ch = g_utf8_get_char (p);
+
+ int start = 0;
+ int end = G_N_ELEMENTS (casefold_table);
+
+ if (ch >= casefold_table[start].ch &&
+ ch <= casefold_table[end - 1].ch)
+ {
+ while (TRUE)
+ {
+ int half = (start + end) / 2;
+ if (ch == casefold_table[half].ch)
+ {
+ g_string_append (result, casefold_table[half].data);
+ goto next;
+ }
+ else if (half == start)
+ break;
+ else if (ch > casefold_table[half].ch)
+ start = half;
+ else
+ end = half;
+ }
+ }
+
+ g_string_append_unichar (result, g_unichar_tolower (ch));
+
+ next:
+ p = g_utf8_next_char (p);
+ }
+
+ return g_string_free (result, FALSE);
+}
+
+/**
+ * g_unichar_get_mirror_char:
+ * @ch: a Unicode character
+ * @mirrored_ch: location to store the mirrored character
+ *
+ * In Unicode, some characters are "mirrored". This means that their
+ * images are mirrored horizontally in text that is laid out from right
+ * to left. For instance, "(" would become its mirror image, ")", in
+ * right-to-left text.
+ *
+ * If @ch has the Unicode mirrored property and there is another unicode
+ * character that typically has a glyph that is the mirror image of @ch's
+ * glyph and @mirrored_ch is set, it puts that character in the address
+ * pointed to by @mirrored_ch. Otherwise the original character is put.
+ *
+ * Returns: %TRUE if @ch has a mirrored character, %FALSE otherwise
+ *
+ * Since: 2.4
+ **/
+gboolean
+g_unichar_get_mirror_char (gunichar ch,
+ gunichar *mirrored_ch)
+{
+ gboolean found;
+ gunichar mirrored;
+
+ mirrored = GLIB_GET_MIRRORING(ch);
+
+ found = ch != mirrored;
+ if (mirrored_ch)
+ *mirrored_ch = mirrored;
+
+ return found;
+
+}
+
+#define G_SCRIPT_TABLE_MIDPOINT (G_N_ELEMENTS (g_script_table) / 2)
+
+static inline GUnicodeScript
+g_unichar_get_script_bsearch (gunichar ch)
+{
+ int lower = 0;
+ int upper = G_N_ELEMENTS (g_script_table) - 1;
+ static int saved_mid = G_SCRIPT_TABLE_MIDPOINT;
+ int mid = saved_mid;
+
+
+ do
+ {
+ if (ch < g_script_table[mid].start)
+ upper = mid - 1;
+ else if (ch >= g_script_table[mid].start + g_script_table[mid].chars)
+ lower = mid + 1;
+ else
+ return g_script_table[saved_mid = mid].script;
+
+ mid = (lower + upper) / 2;
+ }
+ while (lower <= upper);
+
+ return G_UNICODE_SCRIPT_UNKNOWN;
+}
+
+/**
+ * g_unichar_get_script:
+ * @ch: a Unicode character
+ *
+ * Looks up the #GUnicodeScript for a particular character (as defined
+ * by Unicode Standard Annex \#24). No check is made for @ch being a
+ * valid Unicode character; if you pass in invalid character, the
+ * result is undefined.
+ *
+ * This function is equivalent to pango_script_for_unichar() and the
+ * two are interchangeable.
+ *
+ * Returns: the #GUnicodeScript for the character.
+ *
+ * Since: 2.14
+ */
+GUnicodeScript
+g_unichar_get_script (gunichar ch)
+{
+ if (ch < G_EASY_SCRIPTS_RANGE)
+ return g_script_easy_table[ch];
+ else
+ return g_unichar_get_script_bsearch (ch);
+}
+
+
+/* http://unicode.org/iso15924/ */
+static const guint32 iso15924_tags[] =
+{
+#define PACK(a,b,c,d) ((guint32)((((guint8)(a))<<24)|(((guint8)(b))<<16)|(((guint8)(c))<<8)|((guint8)(d))))
+
+ PACK ('Z','y','y','y'), /* G_UNICODE_SCRIPT_COMMON */
+ PACK ('Z','i','n','h'), /* G_UNICODE_SCRIPT_INHERITED */
+ PACK ('A','r','a','b'), /* G_UNICODE_SCRIPT_ARABIC */
+ PACK ('A','r','m','n'), /* G_UNICODE_SCRIPT_ARMENIAN */
+ PACK ('B','e','n','g'), /* G_UNICODE_SCRIPT_BENGALI */
+ PACK ('B','o','p','o'), /* G_UNICODE_SCRIPT_BOPOMOFO */
+ PACK ('C','h','e','r'), /* G_UNICODE_SCRIPT_CHEROKEE */
+ PACK ('C','o','p','t'), /* G_UNICODE_SCRIPT_COPTIC */
+ PACK ('C','y','r','l'), /* G_UNICODE_SCRIPT_CYRILLIC */
+ PACK ('D','s','r','t'), /* G_UNICODE_SCRIPT_DESERET */
+ PACK ('D','e','v','a'), /* G_UNICODE_SCRIPT_DEVANAGARI */
+ PACK ('E','t','h','i'), /* G_UNICODE_SCRIPT_ETHIOPIC */
+ PACK ('G','e','o','r'), /* G_UNICODE_SCRIPT_GEORGIAN */
+ PACK ('G','o','t','h'), /* G_UNICODE_SCRIPT_GOTHIC */
+ PACK ('G','r','e','k'), /* G_UNICODE_SCRIPT_GREEK */
+ PACK ('G','u','j','r'), /* G_UNICODE_SCRIPT_GUJARATI */
+ PACK ('G','u','r','u'), /* G_UNICODE_SCRIPT_GURMUKHI */
+ PACK ('H','a','n','i'), /* G_UNICODE_SCRIPT_HAN */
+ PACK ('H','a','n','g'), /* G_UNICODE_SCRIPT_HANGUL */
+ PACK ('H','e','b','r'), /* G_UNICODE_SCRIPT_HEBREW */
+ PACK ('H','i','r','a'), /* G_UNICODE_SCRIPT_HIRAGANA */
+ PACK ('K','n','d','a'), /* G_UNICODE_SCRIPT_KANNADA */
+ PACK ('K','a','n','a'), /* G_UNICODE_SCRIPT_KATAKANA */
+ PACK ('K','h','m','r'), /* G_UNICODE_SCRIPT_KHMER */
+ PACK ('L','a','o','o'), /* G_UNICODE_SCRIPT_LAO */
+ PACK ('L','a','t','n'), /* G_UNICODE_SCRIPT_LATIN */
+ PACK ('M','l','y','m'), /* G_UNICODE_SCRIPT_MALAYALAM */
+ PACK ('M','o','n','g'), /* G_UNICODE_SCRIPT_MONGOLIAN */
+ PACK ('M','y','m','r'), /* G_UNICODE_SCRIPT_MYANMAR */
+ PACK ('O','g','a','m'), /* G_UNICODE_SCRIPT_OGHAM */
+ PACK ('I','t','a','l'), /* G_UNICODE_SCRIPT_OLD_ITALIC */
+ PACK ('O','r','y','a'), /* G_UNICODE_SCRIPT_ORIYA */
+ PACK ('R','u','n','r'), /* G_UNICODE_SCRIPT_RUNIC */
+ PACK ('S','i','n','h'), /* G_UNICODE_SCRIPT_SINHALA */
+ PACK ('S','y','r','c'), /* G_UNICODE_SCRIPT_SYRIAC */
+ PACK ('T','a','m','l'), /* G_UNICODE_SCRIPT_TAMIL */
+ PACK ('T','e','l','u'), /* G_UNICODE_SCRIPT_TELUGU */
+ PACK ('T','h','a','a'), /* G_UNICODE_SCRIPT_THAANA */
+ PACK ('T','h','a','i'), /* G_UNICODE_SCRIPT_THAI */
+ PACK ('T','i','b','t'), /* G_UNICODE_SCRIPT_TIBETAN */
+ PACK ('C','a','n','s'), /* G_UNICODE_SCRIPT_CANADIAN_ABORIGINAL */
+ PACK ('Y','i','i','i'), /* G_UNICODE_SCRIPT_YI */
+ PACK ('T','g','l','g'), /* G_UNICODE_SCRIPT_TAGALOG */
+ PACK ('H','a','n','o'), /* G_UNICODE_SCRIPT_HANUNOO */
+ PACK ('B','u','h','d'), /* G_UNICODE_SCRIPT_BUHID */
+ PACK ('T','a','g','b'), /* G_UNICODE_SCRIPT_TAGBANWA */
+
+ /* Unicode-4.0 additions */
+ PACK ('B','r','a','i'), /* G_UNICODE_SCRIPT_BRAILLE */
+ PACK ('C','p','r','t'), /* G_UNICODE_SCRIPT_CYPRIOT */
+ PACK ('L','i','m','b'), /* G_UNICODE_SCRIPT_LIMBU */
+ PACK ('O','s','m','a'), /* G_UNICODE_SCRIPT_OSMANYA */
+ PACK ('S','h','a','w'), /* G_UNICODE_SCRIPT_SHAVIAN */
+ PACK ('L','i','n','b'), /* G_UNICODE_SCRIPT_LINEAR_B */
+ PACK ('T','a','l','e'), /* G_UNICODE_SCRIPT_TAI_LE */
+ PACK ('U','g','a','r'), /* G_UNICODE_SCRIPT_UGARITIC */
+
+ /* Unicode-4.1 additions */
+ PACK ('T','a','l','u'), /* G_UNICODE_SCRIPT_NEW_TAI_LUE */
+ PACK ('B','u','g','i'), /* G_UNICODE_SCRIPT_BUGINESE */
+ PACK ('G','l','a','g'), /* G_UNICODE_SCRIPT_GLAGOLITIC */
+ PACK ('T','f','n','g'), /* G_UNICODE_SCRIPT_TIFINAGH */
+ PACK ('S','y','l','o'), /* G_UNICODE_SCRIPT_SYLOTI_NAGRI */
+ PACK ('X','p','e','o'), /* G_UNICODE_SCRIPT_OLD_PERSIAN */
+ PACK ('K','h','a','r'), /* G_UNICODE_SCRIPT_KHAROSHTHI */
+
+ /* Unicode-5.0 additions */
+ PACK ('Z','z','z','z'), /* G_UNICODE_SCRIPT_UNKNOWN */
+ PACK ('B','a','l','i'), /* G_UNICODE_SCRIPT_BALINESE */
+ PACK ('X','s','u','x'), /* G_UNICODE_SCRIPT_CUNEIFORM */
+ PACK ('P','h','n','x'), /* G_UNICODE_SCRIPT_PHOENICIAN */
+ PACK ('P','h','a','g'), /* G_UNICODE_SCRIPT_PHAGS_PA */
+ PACK ('N','k','o','o'), /* G_UNICODE_SCRIPT_NKO */
+
+ /* Unicode-5.1 additions */
+ PACK ('K','a','l','i'), /* G_UNICODE_SCRIPT_KAYAH_LI */
+ PACK ('L','e','p','c'), /* G_UNICODE_SCRIPT_LEPCHA */
+ PACK ('R','j','n','g'), /* G_UNICODE_SCRIPT_REJANG */
+ PACK ('S','u','n','d'), /* G_UNICODE_SCRIPT_SUNDANESE */
+ PACK ('S','a','u','r'), /* G_UNICODE_SCRIPT_SAURASHTRA */
+ PACK ('C','h','a','m'), /* G_UNICODE_SCRIPT_CHAM */
+ PACK ('O','l','c','k'), /* G_UNICODE_SCRIPT_OL_CHIKI */
+ PACK ('V','a','i','i'), /* G_UNICODE_SCRIPT_VAI */
+ PACK ('C','a','r','i'), /* G_UNICODE_SCRIPT_CARIAN */
+ PACK ('L','y','c','i'), /* G_UNICODE_SCRIPT_LYCIAN */
+ PACK ('L','y','d','i'), /* G_UNICODE_SCRIPT_LYDIAN */
+
+ /* Unicode-5.2 additions */
+ PACK ('A','v','s','t'), /* G_UNICODE_SCRIPT_AVESTAN */
+ PACK ('B','a','m','u'), /* G_UNICODE_SCRIPT_BAMUM */
+ PACK ('E','g','y','p'), /* G_UNICODE_SCRIPT_EGYPTIAN_HIEROGLYPHS */
+ PACK ('A','r','m','i'), /* G_UNICODE_SCRIPT_IMPERIAL_ARAMAIC */
+ PACK ('P','h','l','i'), /* G_UNICODE_SCRIPT_INSCRIPTIONAL_PAHLAVI */
+ PACK ('P','r','t','i'), /* G_UNICODE_SCRIPT_INSCRIPTIONAL_PARTHIAN */
+ PACK ('J','a','v','a'), /* G_UNICODE_SCRIPT_JAVANESE */
+ PACK ('K','t','h','i'), /* G_UNICODE_SCRIPT_KAITHI */
+ PACK ('L','i','s','u'), /* G_UNICODE_SCRIPT_LISU */
+ PACK ('M','t','e','i'), /* G_UNICODE_SCRIPT_MEETEI_MAYEK */
+ PACK ('S','a','r','b'), /* G_UNICODE_SCRIPT_OLD_SOUTH_ARABIAN */
+ PACK ('O','r','k','h'), /* G_UNICODE_SCRIPT_OLD_TURKIC */
+ PACK ('S','a','m','r'), /* G_UNICODE_SCRIPT_SAMARITAN */
+ PACK ('L','a','n','a'), /* G_UNICODE_SCRIPT_TAI_THAM */
+ PACK ('T','a','v','t'), /* G_UNICODE_SCRIPT_TAI_VIET */
+
+ /* Unicode-6.0 additions */
+ PACK ('B','a','t','k'), /* G_UNICODE_SCRIPT_BATAK */
+ PACK ('B','r','a','h'), /* G_UNICODE_SCRIPT_BRAHMI */
+ PACK ('M','a','n','d'), /* G_UNICODE_SCRIPT_MANDAIC */
+
+ /* Unicode-6.1 additions */
+ PACK ('C','a','k','m'), /* G_UNICODE_SCRIPT_CHAKMA */
+ PACK ('M','e','r','c'), /* G_UNICODE_SCRIPT_MEROITIC_CURSIVE */
+ PACK ('M','e','r','o'), /* G_UNICODE_SCRIPT_MEROITIC_HIEROGLYPHS */
+ PACK ('P','l','r','d'), /* G_UNICODE_SCRIPT_MIAO */
+ PACK ('S','h','r','d'), /* G_UNICODE_SCRIPT_SHARADA */
+ PACK ('S','o','r','a'), /* G_UNICODE_SCRIPT_SORA_SOMPENG */
+ PACK ('T','a','k','r'), /* G_UNICODE_SCRIPT_TAKRI */
+
+ /* Unicode 7.0 additions */
+ PACK ('B','a','s','s'), /* G_UNICODE_SCRIPT_BASSA_VAH */
+ PACK ('A','g','h','b'), /* G_UNICODE_SCRIPT_CAUCASIAN_ALBANIAN */
+ PACK ('D','u','p','l'), /* G_UNICODE_SCRIPT_DUPLOYAN */
+ PACK ('E','l','b','a'), /* G_UNICODE_SCRIPT_ELBASAN */
+ PACK ('G','r','a','n'), /* G_UNICODE_SCRIPT_GRANTHA */
+ PACK ('K','h','o','j'), /* G_UNICODE_SCRIPT_KHOJKI*/
+ PACK ('S','i','n','d'), /* G_UNICODE_SCRIPT_KHUDAWADI */
+ PACK ('L','i','n','a'), /* G_UNICODE_SCRIPT_LINEAR_A */
+ PACK ('M','a','h','j'), /* G_UNICODE_SCRIPT_MAHAJANI */
+ PACK ('M','a','n','u'), /* G_UNICODE_SCRIPT_MANICHAEAN */
+ PACK ('M','e','n','d'), /* G_UNICODE_SCRIPT_MENDE_KIKAKUI */
+ PACK ('M','o','d','i'), /* G_UNICODE_SCRIPT_MODI */
+ PACK ('M','r','o','o'), /* G_UNICODE_SCRIPT_MRO */
+ PACK ('N','b','a','t'), /* G_UNICODE_SCRIPT_NABATAEAN */
+ PACK ('N','a','r','b'), /* G_UNICODE_SCRIPT_OLD_NORTH_ARABIAN */
+ PACK ('P','e','r','m'), /* G_UNICODE_SCRIPT_OLD_PERMIC */
+ PACK ('H','m','n','g'), /* G_UNICODE_SCRIPT_PAHAWH_HMONG */
+ PACK ('P','a','l','m'), /* G_UNICODE_SCRIPT_PALMYRENE */
+ PACK ('P','a','u','c'), /* G_UNICODE_SCRIPT_PAU_CIN_HAU */
+ PACK ('P','h','l','p'), /* G_UNICODE_SCRIPT_PSALTER_PAHLAVI */
+ PACK ('S','i','d','d'), /* G_UNICODE_SCRIPT_SIDDHAM */
+ PACK ('T','i','r','h'), /* G_UNICODE_SCRIPT_TIRHUTA */
+ PACK ('W','a','r','a'), /* G_UNICODE_SCRIPT_WARANG_CITI */
+
+#undef PACK
+};
+
+/**
+ * g_unicode_script_to_iso15924:
+ * @script: a Unicode script
+ *
+ * Looks up the ISO 15924 code for @script. ISO 15924 assigns four-letter
+ * codes to scripts. For example, the code for Arabic is 'Arab'. The
+ * four letter codes are encoded as a @guint32 by this function in a
+ * big-endian fashion. That is, the code returned for Arabic is
+ * 0x41726162 (0x41 is ASCII code for 'A', 0x72 is ASCII code for 'r', etc).
+ *
+ * See
+ * [Codes for the representation of names of scripts](http://unicode.org/iso15924/codelists.html)
+ * for details.
+ *
+ * Returns: the ISO 15924 code for @script, encoded as an integer,
+ * of zero if @script is %G_UNICODE_SCRIPT_INVALID_CODE or
+ * ISO 15924 code 'Zzzz' (script code for UNKNOWN) if @script is not understood.
+ *
+ * Since: 2.30
+ */
+guint32
+g_unicode_script_to_iso15924 (GUnicodeScript script)
+{
+ if (G_UNLIKELY (script == G_UNICODE_SCRIPT_INVALID_CODE))
+ return 0;
+
+ if (G_UNLIKELY (script < 0 || script >= (int) G_N_ELEMENTS (iso15924_tags)))
+ return 0x5A7A7A7A;
+
+ return iso15924_tags[script];
+}
+
+/**
+ * g_unicode_script_from_iso15924:
+ * @iso15924: a Unicode script
+ *
+ * Looks up the Unicode script for @iso15924. ISO 15924 assigns four-letter
+ * codes to scripts. For example, the code for Arabic is 'Arab'.
+ * This function accepts four letter codes encoded as a @guint32 in a
+ * big-endian fashion. That is, the code expected for Arabic is
+ * 0x41726162 (0x41 is ASCII code for 'A', 0x72 is ASCII code for 'r', etc).
+ *
+ * See
+ * [Codes for the representation of names of scripts](http://unicode.org/iso15924/codelists.html)
+ * for details.
+ *
+ * Returns: the Unicode script for @iso15924, or
+ * of %G_UNICODE_SCRIPT_INVALID_CODE if @iso15924 is zero and
+ * %G_UNICODE_SCRIPT_UNKNOWN if @iso15924 is unknown.
+ *
+ * Since: 2.30
+ */
+GUnicodeScript
+g_unicode_script_from_iso15924 (guint32 iso15924)
+{
+ unsigned int i;
+
+ if (!iso15924)
+ return G_UNICODE_SCRIPT_INVALID_CODE;
+
+ for (i = 0; i < G_N_ELEMENTS (iso15924_tags); i++)
+ if (iso15924_tags[i] == iso15924)
+ return (GUnicodeScript) i;
+
+ return G_UNICODE_SCRIPT_UNKNOWN;
+}
projects / platform / upstream / glib.git / blobdiff