diff options
Diffstat (limited to 'lib/win32/glib-2.20.4/glib/guniprop.c')
-rw-r--r-- | lib/win32/glib-2.20.4/glib/guniprop.c | 1302 |
1 files changed, 0 insertions, 1302 deletions
diff --git a/lib/win32/glib-2.20.4/glib/guniprop.c b/lib/win32/glib-2.20.4/glib/guniprop.c deleted file mode 100644 index 8a28513edc..0000000000 --- a/lib/win32/glib-2.20.4/glib/guniprop.c +++ /dev/null @@ -1,1302 +0,0 @@ -/* guniprop.c - Unicode character properties. - * - * Copyright (C) 1999 Tom Tromey - * Copyright (C) 2000 Red Hat, Inc. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * 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. - */ - -#include "config.h" - -#include <stdlib.h> -#include <stddef.h> -#include <string.h> -#include <locale.h> - -#include "glib.h" -#include "gunichartables.h" -#include "gmirroringtable.h" -#include "gscripttable.h" -#include "gunicodeprivate.h" -#include "galias.h" - -#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) == 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)) - - - -#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 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 ISMARK(Type) IS ((Type), \ - OR (G_UNICODE_NON_SPACING_MARK, \ - OR (G_UNICODE_COMBINING_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(). - * - * Return value: %TRUE if @c is an alphanumeric character - **/ -gboolean -g_unichar_isalnum (gunichar c) -{ - 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(). - * - * Return value: %TRUE if @c is an alphabetic character - **/ -gboolean -g_unichar_isalpha (gunichar c) -{ - 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(). - * - * Return value: %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(). - * - * Return value: %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(). - * - * Return value: %TRUE if @c is printable unless it's a space - **/ -gboolean -g_unichar_isgraph (gunichar c) -{ - 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(). - * - * Return value: %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(). - * - * Return value: %TRUE if @c is printable - **/ -gboolean -g_unichar_isprint (gunichar c) -{ - 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(). - * - * Return value: %TRUE if @c is a punctuation or symbol character - **/ -gboolean -g_unichar_ispunct (gunichar c) -{ - 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.) - * - * Return value: %TRUE if @c is a space character - **/ -gboolean -g_unichar_isspace (gunichar c) -{ - 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. - * - * Return value: %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 - * - * Determines if a character is uppercase. - * - * Return value: %TRUE if @c is an uppercase character - **/ -gboolean -g_unichar_isupper (gunichar c) -{ - return TYPE (c) == G_UNICODE_UPPERCASE_LETTER; -} - -/** - * g_unichar_istitle: - * @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. - * - * Return value: %TRUE if the character is titlecase - **/ -gboolean -g_unichar_istitle (gunichar c) -{ - unsigned int i; - for (i = 0; i < G_N_ELEMENTS (title_table); ++i) - if (title_table[i][0] == c) - return TRUE; - return FALSE; -} - -/** - * g_unichar_isxdigit: - * @c: a Unicode character. - * - * Determines if a character is a hexidecimal digit. - * - * Return value: %TRUE if the character is a hexadecimal digit - **/ -gboolean -g_unichar_isxdigit (gunichar c) -{ - return ((c >= 'a' && c <= 'f') - || (c >= 'A' && c <= 'F') - || (TYPE (c) == G_UNICODE_DECIMAL_NUMBER)); -} - -/** - * g_unichar_isdefined: - * @c: a Unicode character - * - * Determines if a given character is assigned in the Unicode - * standard. - * - * Return value: %TRUE if the character has an assigned value - **/ -gboolean -g_unichar_isdefined (gunichar c) -{ - 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. - * - * Return value: %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; -} - -struct Interval -{ - gunichar start, end; -}; - -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 - * - * Determines if a character is typically rendered in a double-width - * cell. - * - * Return value: %TRUE if the character is wide - **/ -gboolean -g_unichar_iswide (gunichar c) -{ - /* sorted list of intervals of East_Asian_Width = W and F characters - * from Unicode 5.1.0. produced by mungling output of: - * grep ';[FW]\>' EastAsianWidth.txt */ - static const struct Interval wide[] = { - {0x1100, 0x1159}, {0x115F, 0x115F}, {0x2329, 0x232A}, {0x2E80, 0x2E99}, - {0x2E9B, 0x2EF3}, {0x2F00, 0x2FD5}, {0x2FF0, 0x2FFB}, {0x3000, 0x303E}, - {0x3041, 0x3096}, {0x3099, 0x30FF}, {0x3105, 0x312D}, {0x3131, 0x318E}, - {0x3190, 0x31B7}, {0x31C0, 0x31E3}, {0x31F0, 0x321E}, {0x3220, 0x3243}, - {0x3250, 0x32FE}, {0x3300, 0x4DB5}, {0x4E00, 0x9FC3}, {0xA000, 0xA48C}, - {0xA490, 0xA4C6}, {0xAC00, 0xD7A3}, {0xF900, 0xFA2D}, {0xFA30, 0xFA6A}, - {0xFA70, 0xFAD9}, {0xFE10, 0xFE19}, {0xFE30, 0xFE52}, {0xFE54, 0xFE66}, - {0xFE68, 0xFE6B}, {0xFF01, 0xFF60}, {0xFFE0, 0xFFE6}, {0x20000, 0x2FFFD}, - {0x30000, 0x3FFFD} - }; - - if (bsearch (GUINT_TO_POINTER (c), wide, G_N_ELEMENTS (wide), sizeof 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 - * <ulink url="http://www.unicode.org/reports/tr11/">Unicode Standard - * Annex #11</ulink> 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 - * pas both this test and g_unichar_iszerowidth(). - * - * Return value: %TRUE if the character is wide in legacy East Asian locales - * - * Since: 2.12 - */ -gboolean -g_unichar_iswide_cjk (gunichar c) -{ - /* sorted list of intervals of East_Asian_Width = A and F characters - * from Unicode 5.1.0. produced by mungling output of: - * grep ';[A]\>' EastAsianWidth.txt */ - static const struct Interval ambiguous[] = { - {0x00A1, 0x00A1}, {0x00A4, 0x00A4}, {0x00A7, 0x00A8}, {0x00AA, 0x00AA}, - {0x00AD, 0x00AE}, {0x00B0, 0x00B4}, {0x00B6, 0x00BA}, {0x00BC, 0x00BF}, - {0x00C6, 0x00C6}, {0x00D0, 0x00D0}, {0x00D7, 0x00D8}, {0x00DE, 0x00E1}, - {0x00E6, 0x00E6}, {0x00E8, 0x00EA}, {0x00EC, 0x00ED}, {0x00F0, 0x00F0}, - {0x00F2, 0x00F3}, {0x00F7, 0x00FA}, {0x00FC, 0x00FC}, {0x00FE, 0x00FE}, - {0x0101, 0x0101}, {0x0111, 0x0111}, {0x0113, 0x0113}, {0x011B, 0x011B}, - {0x0126, 0x0127}, {0x012B, 0x012B}, {0x0131, 0x0133}, {0x0138, 0x0138}, - {0x013F, 0x0142}, {0x0144, 0x0144}, {0x0148, 0x014B}, {0x014D, 0x014D}, - {0x0152, 0x0153}, {0x0166, 0x0167}, {0x016B, 0x016B}, {0x01CE, 0x01CE}, - {0x01D0, 0x01D0}, {0x01D2, 0x01D2}, {0x01D4, 0x01D4}, {0x01D6, 0x01D6}, - {0x01D8, 0x01D8}, {0x01DA, 0x01DA}, {0x01DC, 0x01DC}, {0x0251, 0x0251}, - {0x0261, 0x0261}, {0x02C4, 0x02C4}, {0x02C7, 0x02C7}, {0x02C9, 0x02CB}, - {0x02CD, 0x02CD}, {0x02D0, 0x02D0}, {0x02D8, 0x02DB}, {0x02DD, 0x02DD}, - {0x02DF, 0x02DF}, {0x0300, 0x036F}, {0x0391, 0x03A1}, {0x03A3, 0x03A9}, - {0x03B1, 0x03C1}, {0x03C3, 0x03C9}, {0x0401, 0x0401}, {0x0410, 0x044F}, - {0x0451, 0x0451}, {0x2010, 0x2010}, {0x2013, 0x2016}, {0x2018, 0x2019}, - {0x201C, 0x201D}, {0x2020, 0x2022}, {0x2024, 0x2027}, {0x2030, 0x2030}, - {0x2032, 0x2033}, {0x2035, 0x2035}, {0x203B, 0x203B}, {0x203E, 0x203E}, - {0x2074, 0x2074}, {0x207F, 0x207F}, {0x2081, 0x2084}, {0x20AC, 0x20AC}, - {0x2103, 0x2103}, {0x2105, 0x2105}, {0x2109, 0x2109}, {0x2113, 0x2113}, - {0x2116, 0x2116}, {0x2121, 0x2122}, {0x2126, 0x2126}, {0x212B, 0x212B}, - {0x2153, 0x2154}, {0x215B, 0x215E}, {0x2160, 0x216B}, {0x2170, 0x2179}, - {0x2190, 0x2199}, {0x21B8, 0x21B9}, {0x21D2, 0x21D2}, {0x21D4, 0x21D4}, - {0x21E7, 0x21E7}, {0x2200, 0x2200}, {0x2202, 0x2203}, {0x2207, 0x2208}, - {0x220B, 0x220B}, {0x220F, 0x220F}, {0x2211, 0x2211}, {0x2215, 0x2215}, - {0x221A, 0x221A}, {0x221D, 0x2220}, {0x2223, 0x2223}, {0x2225, 0x2225}, - {0x2227, 0x222C}, {0x222E, 0x222E}, {0x2234, 0x2237}, {0x223C, 0x223D}, - {0x2248, 0x2248}, {0x224C, 0x224C}, {0x2252, 0x2252}, {0x2260, 0x2261}, - {0x2264, 0x2267}, {0x226A, 0x226B}, {0x226E, 0x226F}, {0x2282, 0x2283}, - {0x2286, 0x2287}, {0x2295, 0x2295}, {0x2299, 0x2299}, {0x22A5, 0x22A5}, - {0x22BF, 0x22BF}, {0x2312, 0x2312}, {0x2460, 0x24E9}, {0x24EB, 0x254B}, - {0x2550, 0x2573}, {0x2580, 0x258F}, {0x2592, 0x2595}, {0x25A0, 0x25A1}, - {0x25A3, 0x25A9}, {0x25B2, 0x25B3}, {0x25B6, 0x25B7}, {0x25BC, 0x25BD}, - {0x25C0, 0x25C1}, {0x25C6, 0x25C8}, {0x25CB, 0x25CB}, {0x25CE, 0x25D1}, - {0x25E2, 0x25E5}, {0x25EF, 0x25EF}, {0x2605, 0x2606}, {0x2609, 0x2609}, - {0x260E, 0x260F}, {0x2614, 0x2615}, {0x261C, 0x261C}, {0x261E, 0x261E}, - {0x2640, 0x2640}, {0x2642, 0x2642}, {0x2660, 0x2661}, {0x2663, 0x2665}, - {0x2667, 0x266A}, {0x266C, 0x266D}, {0x266F, 0x266F}, {0x273D, 0x273D}, - {0x2776, 0x277F}, {0xE000, 0xF8FF}, {0xFE00, 0xFE0F}, {0xFFFD, 0xFFFD}, - {0xE0100, 0xE01EF}, {0xF0000, 0xFFFFD}, {0x100000, 0x10FFFD} - }; - - if (g_unichar_iswide (c)) - return TRUE; - - if (bsearch (GUINT_TO_POINTER (c), ambiguous, G_N_ELEMENTS (ambiguous), sizeof ambiguous[0], - interval_compare)) - return TRUE; - - return FALSE; -} - - -/** - * g_unichar_toupper: - * @c: a Unicode character - * - * Converts a character to uppercase. - * - * Return value: the result of converting @c to uppercase. - * If @c is not an lowercase or titlecase character, - * 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) - { - 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 < G_N_ELEMENTS (title_table); ++i) - { - if (title_table[i][0] == c) - return title_table[i][1]; - } - } - return c; -} - -/** - * g_unichar_tolower: - * @c: a Unicode character. - * - * Converts a character to lower case. - * - * Return value: the result of converting @c to lower case. - * If @c is not an upperlower or titlecase character, - * 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) - { - 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 < G_N_ELEMENTS (title_table); ++i) - { - if (title_table[i][0] == c) - return title_table[i][2]; - } - } - return c; -} - -/** - * g_unichar_totitle: - * @c: a Unicode character - * - * Converts a character to the titlecase. - * - * Return value: the result of converting @c to titlecase. - * If @c is not an uppercase or lowercase character, - * @c is returned unchanged. - **/ -gunichar -g_unichar_totitle (gunichar c) -{ - unsigned int 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]; - } - - if (TYPE (c) == G_UNICODE_LOWERCASE_LETTER) - return g_unichar_toupper (c); - - return c; -} - -/** - * g_unichar_digit_value: - * @c: a Unicode character - * - * Determines the numeric value of a character as a decimal - * digit. - * - * Return value: If @c is a decimal digit (according to - * g_unichar_isdigit()), its numeric value. Otherwise, -1. - **/ -int -g_unichar_digit_value (gunichar c) -{ - if (TYPE (c) == G_UNICODE_DECIMAL_NUMBER) - return ATTTABLE (c >> 8, c & 0xff); - return -1; -} - -/** - * g_unichar_xdigit_value: - * @c: a Unicode character - * - * Determines the numeric value of a character as a hexidecimal - * digit. - * - * Return value: 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' + 10; - if (c >= 'a' && c <= 'f') - 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 - * - * Classifies a Unicode character by type. - * - * Return value: 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); -#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; - - decomp = g_unicode_canonical_decomposition (c, &decomp_len); - 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); - } - g_free (decomp); - - 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.) - * - * Return value: 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. - * - * Return value: 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. - * - * Return value: 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 <firstterm>mirrored</firstterm>. 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. - * - * Return value: %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. - * - * Return value: 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); -} - - -#define __G_UNIPROP_C__ -#include "galiasdef.c" |