/* GLIB - Library of useful routines for C programming

 * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald

 *

 * SPDX-License-Identifier: LGPL-2.1-or-later

 *

 * 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 2.1 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, see <http://www.gnu.org/licenses/>.

 */

/*

 * Modified by the GLib Team and others 1997-2000.  See the AUTHORS

 * file for a list of people on the GLib Team.  See the ChangeLog

 * files for a list of changes.  These files are distributed with

 * GLib at ftp://ftp.gtk.org/pub/gtk/.

 */

#ifndef __G_STRFUNCS_H__

#define __G_STRFUNCS_H__

#if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)

#error "Only <glib.h> can be included directly."

#endif

#include <stdarg.h>

#include <string.h>

#include <glib/gmacros.h>

#include <glib/gtypes.h>

#include <glib/gerror.h>

#include <glib/gmem.h>

G_BEGIN_DECLS

/* Functions like the ones in <ctype.h> that are not affected by locale. */

typedef enum {

  G_ASCII_ALNUM  = 1 << 0,

  G_ASCII_ALPHA  = 1 << 1,

  G_ASCII_CNTRL  = 1 << 2,

  G_ASCII_DIGIT  = 1 << 3,

  G_ASCII_GRAPH  = 1 << 4,

  G_ASCII_LOWER  = 1 << 5,

  G_ASCII_PRINT  = 1 << 6,

  G_ASCII_PUNCT  = 1 << 7,

  G_ASCII_SPACE  = 1 << 8,

  G_ASCII_UPPER  = 1 << 9,

  G_ASCII_XDIGIT = 1 << 10

} GAsciiType;

GLIB_VAR const guint16 * const g_ascii_table;

#define g_ascii_isalnum(c) \

  ((g_ascii_table[(guchar) (c)] & G_ASCII_ALNUM) != 0)

#define g_ascii_isalpha(c) \

  ((g_ascii_table[(guchar) (c)] & G_ASCII_ALPHA) != 0)

#define g_ascii_iscntrl(c) \

  ((g_ascii_table[(guchar) (c)] & G_ASCII_CNTRL) != 0)

#define g_ascii_isdigit(c) \

  ((g_ascii_table[(guchar) (c)] & G_ASCII_DIGIT) != 0)

#define g_ascii_isgraph(c) \

  ((g_ascii_table[(guchar) (c)] & G_ASCII_GRAPH) != 0)

#define g_ascii_islower(c) \

  ((g_ascii_table[(guchar) (c)] & G_ASCII_LOWER) != 0)

#define g_ascii_isprint(c) \

  ((g_ascii_table[(guchar) (c)] & G_ASCII_PRINT) != 0)

#define g_ascii_ispunct(c) \

  ((g_ascii_table[(guchar) (c)] & G_ASCII_PUNCT) != 0)

#define g_ascii_isspace(c) \

  ((g_ascii_table[(guchar) (c)] & G_ASCII_SPACE) != 0)

#define g_ascii_isupper(c) \

  ((g_ascii_table[(guchar) (c)] & G_ASCII_UPPER) != 0)

#define g_ascii_isxdigit(c) \

  ((g_ascii_table[(guchar) (c)] & G_ASCII_XDIGIT) != 0)

GLIB_AVAILABLE_IN_ALL

gchar                 g_ascii_tolower  (gchar        c) G_GNUC_CONST;

GLIB_AVAILABLE_IN_ALL

gchar                 g_ascii_toupper  (gchar        c) G_GNUC_CONST;

GLIB_AVAILABLE_IN_ALL

gint                  g_ascii_digit_value  (gchar    c) G_GNUC_CONST;

GLIB_AVAILABLE_IN_ALL

gint                  g_ascii_xdigit_value (gchar    c) G_GNUC_CONST;

/* String utility functions that modify a string argument or

 * return a constant string that must not be freed.

 */

#define  G_STR_DELIMITERS "_-|> <."

GLIB_AVAILABLE_IN_ALL

gchar*                g_strdelimit     (gchar      *string,

          const gchar  *delimiters,

          gchar       new_delimiter);

GLIB_AVAILABLE_IN_ALL

gchar*                g_strcanon       (gchar        *string,

          const gchar  *valid_chars,

          gchar         substitutor);

GLIB_AVAILABLE_IN_ALL

const gchar *         g_strerror       (gint        errnum) G_GNUC_CONST;

GLIB_AVAILABLE_IN_ALL

const gchar *         g_strsignal      (gint        signum) G_GNUC_CONST;

GLIB_AVAILABLE_IN_ALL

gchar *               g_strreverse     (gchar      *string);

GLIB_AVAILABLE_IN_ALL

gsize               g_strlcpy        (gchar      *dest,

          const gchar  *src,

          gsize         dest_size);

GLIB_AVAILABLE_IN_ALL

gsize               g_strlcat        (gchar      *dest,

          const gchar  *src,

          gsize         dest_size);

GLIB_AVAILABLE_IN_ALL

gchar *               g_strstr_len     (const gchar  *haystack,

          gssize        haystack_len,

          const gchar  *needle);

GLIB_AVAILABLE_IN_ALL

gchar *               g_strrstr        (const gchar  *haystack,

          const gchar  *needle);

GLIB_AVAILABLE_IN_ALL

gchar *               g_strrstr_len    (const gchar  *haystack,

          gssize        haystack_len,

          const gchar  *needle);

GLIB_AVAILABLE_IN_ALL

gboolean             (g_str_has_suffix) (const gchar *str,

                                         const gchar *suffix);

GLIB_AVAILABLE_IN_ALL

gboolean             (g_str_has_prefix) (const gchar *str,

                                         const gchar *prefix);

#if G_GNUC_CHECK_VERSION (2, 0)

#ifndef __GTK_DOC_IGNORE__

#ifndef __GI_SCANNER__

/* This macro is defeat a false -Wnonnull warning in GCC.

 * Without it, it thinks strlen and memcmp may be getting passed NULL

 * despite the explicit check for NULL right above the calls.

 */

#define _G_STR_NONNULL(x) ((x) + !(x))

#define g_str_has_prefix(STR, PREFIX)                                         \

  (__builtin_constant_p (PREFIX)?                                             \

    G_GNUC_EXTENSION ({                                                       \

       const char * const __str = (STR);                                      \

       const char * const __prefix = (PREFIX);                                \

       gboolean __result = FALSE;                                             \

                                                                              \

       if G_UNLIKELY (__str == NULL || __prefix == NULL)                      \

           __result = (g_str_has_prefix) (__str, __prefix);                   \

       else                                                                   \

         {                                                                    \

            const size_t __str_len = strlen (_G_STR_NONNULL (__str));         \

            const size_t __prefix_len = strlen (_G_STR_NONNULL (__prefix));   \

            if (__str_len >= __prefix_len)                                    \

              __result = memcmp (_G_STR_NONNULL (__str),                      \

                                 _G_STR_NONNULL (__prefix),                   \

                                 __prefix_len) == 0;                          \

         }                                                                    \

         __result;                                                            \

    })                                                                        \

  :                                                                           \

    (g_str_has_prefix) (STR, PREFIX)                                          \

  )

#define g_str_has_suffix(STR, SUFFIX)                                         \

  (__builtin_constant_p (SUFFIX)?                                             \

    G_GNUC_EXTENSION ({                                                       \

       const char * const __str = (STR);                                      \

       const char * const __suffix = (SUFFIX);                                \

       gboolean __result = FALSE;                                             \

                                                                              \

       if G_UNLIKELY (__str == NULL || __suffix == NULL)                      \

         __result = (g_str_has_suffix) (__str, __suffix);                     \

       else                                                                   \

         {                                                                    \

            const size_t __str_len = strlen (_G_STR_NONNULL (__str));         \

            const size_t __suffix_len = strlen (_G_STR_NONNULL (__suffix));   \

            if (__str_len >= __suffix_len)                                    \

              __result = memcmp (__str + __str_len - __suffix_len,            \

                                 _G_STR_NONNULL (__suffix),                   \

                                 __suffix_len) == 0;                          \

         }                                                                    \

         __result;                                                            \

    })                                                                        \

  :                                                                           \

    (g_str_has_suffix) (STR, SUFFIX)                                          \

  )

#endif /* !defined (__GI_SCANNER__) */

#endif /* !defined (__GTK_DOC_IGNORE__) */

#endif /* G_GNUC_CHECK_VERSION (2, 0) */

/* String to/from double conversion functions */

GLIB_AVAILABLE_IN_ALL

gdouble               g_strtod         (const gchar  *nptr,

          gchar     **endptr);

GLIB_AVAILABLE_IN_ALL

gdouble               g_ascii_strtod   (const gchar  *nptr,

          gchar     **endptr);

GLIB_AVAILABLE_IN_ALL

guint64         g_ascii_strtoull (const gchar *nptr,

          gchar      **endptr,

          guint        base);

GLIB_AVAILABLE_IN_ALL

gint64          g_ascii_strtoll  (const gchar *nptr,

          gchar      **endptr,

          guint        base);

/* 29 bytes should enough for all possible values that

 * g_ascii_dtostr can produce.

 * Then add 10 for good measure */

#define G_ASCII_DTOSTR_BUF_SIZE (29 + 10)

GLIB_AVAILABLE_IN_ALL

gchar *               g_ascii_dtostr   (gchar        *buffer,

          gint          buf_len,

          gdouble       d);

GLIB_AVAILABLE_IN_ALL

gchar *               g_ascii_formatd  (gchar        *buffer,

          gint          buf_len,

          const gchar  *format,

          gdouble       d);

/* removes leading spaces */

GLIB_AVAILABLE_IN_ALL

gchar*                g_strchug        (gchar        *string);

/* removes trailing spaces */

GLIB_AVAILABLE_IN_ALL

gchar*                g_strchomp       (gchar        *string);

/* removes leading & trailing spaces */

#define g_strstrip( string )  g_strchomp (g_strchug (string))

GLIB_AVAILABLE_IN_ALL

gint                  g_ascii_strcasecmp  (const gchar *s1,

             const gchar *s2);

GLIB_AVAILABLE_IN_ALL

gint                  g_ascii_strncasecmp (const gchar *s1,

             const gchar *s2,

             gsize        n);

GLIB_AVAILABLE_IN_ALL

gchar*                g_ascii_strdown     (const gchar *str,

             gssize       len) G_GNUC_MALLOC;

GLIB_AVAILABLE_IN_ALL

gchar*                g_ascii_strup       (const gchar *str,

             gssize       len) G_GNUC_MALLOC;

GLIB_AVAILABLE_IN_2_40

gboolean              g_str_is_ascii      (const gchar *str);

GLIB_DEPRECATED

gint                  g_strcasecmp     (const gchar *s1,

                                        const gchar *s2);

GLIB_DEPRECATED

gint                  g_strncasecmp    (const gchar *s1,

                                        const gchar *s2,

                                        guint        n);

GLIB_DEPRECATED

gchar*                g_strdown        (gchar       *string);

GLIB_DEPRECATED

gchar*                g_strup          (gchar       *string);

/* String utility functions that return a newly allocated string which

 * ought to be freed with g_free from the caller at some point.

 */

GLIB_AVAILABLE_IN_ALL

gchar*               (g_strdup)        (const gchar *str) G_GNUC_MALLOC;

GLIB_AVAILABLE_IN_ALL

gchar*                g_strdup_printf  (const gchar *format,

          ...) G_GNUC_PRINTF (1, 2) G_GNUC_MALLOC;

GLIB_AVAILABLE_IN_ALL

gchar*                g_strdup_vprintf (const gchar *format,

          va_list      args) G_GNUC_PRINTF(1, 0) G_GNUC_MALLOC;

GLIB_AVAILABLE_IN_ALL

gchar*                g_strndup        (const gchar *str,

          gsize        n) G_GNUC_MALLOC;  

GLIB_AVAILABLE_IN_ALL

gchar*                g_strnfill       (gsize        length,  

          gchar        fill_char) G_GNUC_MALLOC;

GLIB_AVAILABLE_IN_ALL

gchar*                g_strconcat      (const gchar *string1,

          ...) G_GNUC_MALLOC G_GNUC_NULL_TERMINATED;

GLIB_AVAILABLE_IN_ALL

gchar*                g_strjoin        (const gchar  *separator,

          ...) G_GNUC_MALLOC G_GNUC_NULL_TERMINATED;

#if G_GNUC_CHECK_VERSION(2, 0)

#ifndef __GTK_DOC_IGNORE__

#ifndef __GI_SCANNER__

G_ALWAYS_INLINE static inline char *

g_strdup_inline (const char *str)

{

  if (__builtin_constant_p (!str) && !str)

    return NULL;

  if (__builtin_constant_p (!!str) && !!str && __builtin_constant_p (strlen (str)))

    {

      const size_t len = strlen (str) + 1;

      char *dup_str = (char *) g_malloc (len);

      return (char *) memcpy (dup_str, str, len);

    }

  return g_strdup (str);

}

#define g_strdup(x) g_strdup_inline (x)

#endif /* !defined (__GI_SCANNER__) */

#endif /* !defined (__GTK_DOC_IGNORE__) */

#endif /* G_GNUC_CHECK_VERSION (2, 0) */

GLIB_AVAILABLE_IN_ALL

gchar*                g_strcompress    (const gchar *source) G_GNUC_MALLOC;

GLIB_AVAILABLE_IN_ALL

gchar*                g_strescape      (const gchar *source,

          const gchar *exceptions) G_GNUC_MALLOC;

GLIB_DEPRECATED_IN_2_68_FOR (g_memdup2)

gpointer              g_memdup         (gconstpointer mem,

                                        guint         byte_size) G_GNUC_ALLOC_SIZE(2);

GLIB_AVAILABLE_IN_2_68

gpointer              g_memdup2        (gconstpointer mem,

                                        gsize         byte_size) G_GNUC_ALLOC_SIZE(2);

/* NULL terminated string arrays.

 * g_strsplit(), g_strsplit_set() split up string into max_tokens tokens

 * at delim and return a newly allocated string array.

 * g_strjoinv() concatenates all of str_array's strings, sliding in an

 * optional separator, the returned string is newly allocated.

 * g_strfreev() frees the array itself and all of its strings.

 * g_strdupv() copies a NULL-terminated array of strings

 * g_strv_length() returns the length of a NULL-terminated array of strings

 */

typedef gchar** GStrv;

GLIB_AVAILABLE_IN_ALL

gchar**               g_strsplit       (const gchar  *string,

          const gchar  *delimiter,

          gint          max_tokens);

GLIB_AVAILABLE_IN_ALL

gchar **        g_strsplit_set   (const gchar *string,

          const gchar *delimiters,

          gint         max_tokens);

GLIB_AVAILABLE_IN_ALL

gchar*                g_strjoinv       (const gchar  *separator,

          gchar       **str_array) G_GNUC_MALLOC;

GLIB_AVAILABLE_IN_ALL

void                  g_strfreev       (gchar       **str_array);

GLIB_AVAILABLE_IN_ALL

gchar**               g_strdupv        (gchar       **str_array);

GLIB_AVAILABLE_IN_ALL

guint                 g_strv_length    (gchar       **str_array);

GLIB_AVAILABLE_IN_ALL

gchar*                g_stpcpy         (gchar        *dest,

                                        const char   *src);

GLIB_AVAILABLE_IN_2_40

gchar *                 g_str_to_ascii                                  (const gchar   *str,

                                                                         const gchar   *from_locale);

GLIB_AVAILABLE_IN_2_40

gchar **                g_str_tokenize_and_fold                         (const gchar   *string,

                                                                         const gchar   *translit_locale,

                                                                         gchar       ***ascii_alternates);

GLIB_AVAILABLE_IN_2_40

gboolean                g_str_match_string                              (const gchar   *search_term,

                                                                         const gchar   *potential_hit,

                                                                         gboolean       accept_alternates);

GLIB_AVAILABLE_IN_2_44

gboolean              g_strv_contains  (const gchar * const *strv,

                                        const gchar         *str);

GLIB_AVAILABLE_IN_2_60

gboolean              g_strv_equal     (const gchar * const *strv1,

                                        const gchar * const *strv2);

/* Convenience ASCII string to number API */

/**

 * GNumberParserError:

 * @G_NUMBER_PARSER_ERROR_INVALID: string was not a valid number

 * @G_NUMBER_PARSER_ERROR_OUT_OF_BOUNDS: string was a number, but out of bounds

 *

 * Error codes returned by functions converting a string to a number.

 *

 * Since: 2.54

 */

typedef enum

  {

    G_NUMBER_PARSER_ERROR_INVALID,

    G_NUMBER_PARSER_ERROR_OUT_OF_BOUNDS,

  } GNumberParserError;

/**

 * G_NUMBER_PARSER_ERROR:

 *

 * Domain for errors returned by functions converting a string to a

 * number.

 *

 * Since: 2.54

 */

#define G_NUMBER_PARSER_ERROR (g_number_parser_error_quark ())

GLIB_AVAILABLE_IN_2_54

GQuark                g_number_parser_error_quark  (void);

GLIB_AVAILABLE_IN_2_54

gboolean              g_ascii_string_to_signed     (const gchar  *str,

                                                    guint         base,

                                                    gint64        min,

                                                    gint64        max,

                                                    gint64       *out_num,

                                                    GError      **error);

GLIB_AVAILABLE_IN_2_54

gboolean              g_ascii_string_to_unsigned   (const gchar  *str,

                                                    guint         base,

                                                    guint64       min,

                                                    guint64       max,

                                                    guint64      *out_num,

                                                    GError      **error);

/**

 * g_set_str: (skip)

 * @str_pointer: (inout) (not optional) (nullable): a pointer to either

 *   a string or `NULL`

 * @new_str: (nullable): a string to assign to @str_pointer

 *

 * Updates a pointer to a string to a copy of @new_str and returns whether the

 * string was changed.

 *

 * If @new_str matches the previous string, this function is a no-op. If

 * @new_str is different, a copy of it will be assigned to @str_pointer and

 * the previous string pointed to by @str_pointer will be freed with

 * [func@GLib.free].

 *

 * @str_pointer must not be `NULL`, but can point to a `NULL` value.

 *

 * One convenient usage of this function is in implementing property settings:

 * ```C

 * void

 * foo_set_bar (Foo        *foo,

 *              const char *new_bar)

 * {

 *   g_return_if_fail (IS_FOO (foo));

 *

 *   if (g_set_str (&foo->bar, new_bar))

 *     g_object_notify (foo, "bar");

 * }

 * ```

 *

 * Returns: true if the value of @str_pointer changed, false otherwise

 *

 * Since: 2.76

 */

GLIB_AVAILABLE_STATIC_INLINE_IN_2_76

static inline gboolean g_set_str (char       **str_pointer,

                                  const char  *new_str);

GLIB_AVAILABLE_STATIC_INLINE_IN_2_76

static inline gboolean

g_set_str (char       **str_pointer,

           const char  *new_str)

{

  char *copy;

  if (*str_pointer == new_str ||

      (*str_pointer && new_str && strcmp (*str_pointer, new_str) == 0))

    return FALSE;

  copy = g_strdup (new_str);

  g_free (*str_pointer);

  *str_pointer = copy;

  return TRUE;

}

G_END_DECLS

#endif /* __G_STRFUNCS_H__ */