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a435aaff03
2000-08-25 Elliot Lee <sopwith@redhat.com> * glib.h, gunicode.h, gmodule/gmodule.h: Mark the following functions G_GNUC_CONST (to allow betteroptimization) because their results are a function of only their parameters: g_int_hash, g_int_equal, g_direct_hash, g_direct_equal, g_quark_to_string, g_date_is_leap_year, g_date_days_in_month, g_date_monday_weeks_in_year, g_date_sunday_weeks_in_year, g_spaced_primes_closest, g_unichar_is*, g_unichar_to*, g_unichar_*digit_value, g_unichar_type
193 lines
6.3 KiB
C
193 lines
6.3 KiB
C
/* gunicode.h - Unicode manipulation functions
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*
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* Copyright (C) 1999, 2000 Tom Tromey
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* Copyright 2000 Red Hat, Inc.
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*
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* The Gnome Library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* The Gnome Library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with the Gnome Library; see the file COPYING.LIB. If not,
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* write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GUNICODE_H__
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#define __GUNICODE_H__
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#include <stddef.h> /* For size_t */
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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typedef guint32 gunichar;
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typedef guint16 gunichar2;
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/* These are the possible character classifications. */
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typedef enum {
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G_UNICODE_CONTROL,
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G_UNICODE_FORMAT,
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G_UNICODE_UNASSIGNED,
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G_UNICODE_PRIVATE_USE,
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G_UNICODE_SURROGATE,
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G_UNICODE_LOWERCASE_LETTER,
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G_UNICODE_MODIFIER_LETTER,
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G_UNICODE_OTHER_LETTER,
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G_UNICODE_TITLECASE_LETTER,
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G_UNICODE_UPPERCASE_LETTER,
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G_UNICODE_COMBINING_MARK,
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G_UNICODE_ENCLOSING_MARK,
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G_UNICODE_NON_SPACING_MARK,
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G_UNICODE_DECIMAL_NUMBER,
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G_UNICODE_LETTER_NUMBER,
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G_UNICODE_OTHER_NUMBER,
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G_UNICODE_CONNECT_PUNCTUATION,
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G_UNICODE_DASH_PUNCTUATION,
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G_UNICODE_CLOSE_PUNCTUATION,
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G_UNICODE_FINAL_PUNCTUATION,
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G_UNICODE_INITIAL_PUNCTUATION,
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G_UNICODE_OTHER_PUNCTUATION,
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G_UNICODE_OPEN_PUNCTUATION,
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G_UNICODE_CURRENCY_SYMBOL,
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G_UNICODE_MODIFIER_SYMBOL,
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G_UNICODE_MATH_SYMBOL,
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G_UNICODE_OTHER_SYMBOL,
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G_UNICODE_LINE_SEPARATOR,
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G_UNICODE_PARAGRAPH_SEPARATOR,
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G_UNICODE_SPACE_SEPARATOR
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} GUnicodeType;
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/* Returns TRUE if current locale uses UTF-8 charset. If CHARSET is
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* not null, sets *CHARSET to the name of the current locale's
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* charset. This value is statically allocated.
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*/
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gboolean g_get_charset (char **charset);
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/* These are all analogs of the <ctype.h> functions.
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*/
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gboolean g_unichar_isalnum (gunichar c) G_GNUC_CONST;
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gboolean g_unichar_isalpha (gunichar c) G_GNUC_CONST;
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gboolean g_unichar_iscntrl (gunichar c) G_GNUC_CONST;
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gboolean g_unichar_isdigit (gunichar c) G_GNUC_CONST;
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gboolean g_unichar_isgraph (gunichar c) G_GNUC_CONST;
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gboolean g_unichar_islower (gunichar c) G_GNUC_CONST;
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gboolean g_unichar_isprint (gunichar c) G_GNUC_CONST;
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gboolean g_unichar_ispunct (gunichar c) G_GNUC_CONST;
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gboolean g_unichar_isspace (gunichar c) G_GNUC_CONST;
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gboolean g_unichar_isupper (gunichar c) G_GNUC_CONST;
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gboolean g_unichar_isxdigit (gunichar c) G_GNUC_CONST;
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gboolean g_unichar_istitle (gunichar c) G_GNUC_CONST;
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gboolean g_unichar_isdefined (gunichar c) G_GNUC_CONST;
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gboolean g_unichar_iswide (gunichar c) G_GNUC_CONST;
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/* More <ctype.h> functions. These convert between the three cases.
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* See the Unicode book to understand title case. */
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gunichar g_unichar_toupper (gunichar c) G_GNUC_CONST;
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gunichar g_unichar_tolower (gunichar c) G_GNUC_CONST;
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gunichar g_unichar_totitle (gunichar c) G_GNUC_CONST;
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/* If C is a digit (according to `g_unichar_isdigit'), then return its
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numeric value. Otherwise return -1. */
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gint g_unichar_digit_value (gunichar c) G_GNUC_CONST;
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gint g_unichar_xdigit_value (gunichar c) G_GNUC_CONST;
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/* Return the Unicode character type of a given character. */
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GUnicodeType g_unichar_type (gunichar c) G_GNUC_CONST;
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/* Compute canonical ordering of a string in-place. This rearranges
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decomposed characters in the string according to their combining
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classes. See the Unicode manual for more information. */
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void g_unicode_canonical_ordering (gunichar *string,
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size_t len);
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/* Compute canonical decomposition of a character. Returns g_malloc()d
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string of Unicode characters. RESULT_LEN is set to the resulting
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length of the string. */
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gunichar *g_unicode_canonical_decomposition (gunichar ch,
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size_t *result_len);
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/* Array of skip-bytes-per-initial character.
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* We prefix variable declarations so they can
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* properly get exported in windows dlls.
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*/
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#ifndef GLIB_VAR
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# ifdef G_OS_WIN32
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# ifdef GLIB_COMPILATION
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# define GLIB_VAR __declspec(dllexport)
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# else /* !GLIB_COMPILATION */
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# define GLIB_VAR extern __declspec(dllimport)
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# endif /* !GLIB_COMPILATION */
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# else /* !G_OS_WIN32 */
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# define GLIB_VAR extern
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# endif /* !G_OS_WIN32 */
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#endif /* !GLIB_VAR */
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GLIB_VAR char g_utf8_skip[256];
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#define g_utf8_next_char(p) (char *)((p) + g_utf8_skip[*(guchar *)(p)])
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gunichar g_utf8_get_char (const gchar *p);
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gchar * g_utf8_offset_to_pointer (const gchar *str,
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gint offset);
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gint g_utf8_pointer_to_offset (const gchar *str,
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const gchar *pos);
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gchar * g_utf8_prev_char (const gchar *p);
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gchar * g_utf8_find_next_char (const gchar *p,
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const gchar *bound);
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gchar * g_utf8_find_prev_char (const gchar *str,
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const gchar *p);
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gint g_utf8_strlen (const gchar *p,
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gint max);
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/* Copies n characters from src to dest */
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gchar *g_utf8_strncpy (gchar *dest,
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const gchar *src,
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size_t n);
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/* Find the UTF-8 character corresponding to ch, in string p. These
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functions are equivalants to strchr and strrchr */
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gchar *g_utf8_strchr (const gchar *p,
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gunichar ch);
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gchar *g_utf8_strrchr (const gchar *p,
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gunichar ch);
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gunichar2 *g_utf8_to_utf16 (const gchar *str,
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gint len);
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gunichar * g_utf8_to_ucs4 (const gchar *str,
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gint len);
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gunichar * g_utf16_to_ucs4 (const gunichar2 *str,
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gint len);
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gchar * g_utf16_to_utf8 (const gunichar2 *str,
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gint len);
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gunichar * g_ucs4_to_utf16 (const gunichar *str,
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gint len);
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gchar * g_ucs4_to_utf8 (const gunichar *str,
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gint len);
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/* Convert a single character into UTF-8. outbuf must have at
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* least 6 bytes of space. Returns the number of bytes in the
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* result.
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*/
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gint g_unichar_to_utf8 (gunichar c,
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char *outbuf);
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#ifdef __cplusplus
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}
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#endif
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#endif /* GUNICODE_H */
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