-/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ 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.
The GNU C 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
- Library General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
#ifndef _GCONV_INT_H
#define _GCONV_INT_H 1
#include "gconv.h"
-#include <regex.h>
+#include <stdlib.h> /* For alloca used in macro below. */
__BEGIN_DECLS
-/* Structure for alias definition. Simply to strings. */
+/* Type to represent search path. */
+struct path_elem
+{
+ const char *name;
+ size_t len;
+};
+
+/* Variable with search path for `gconv' implementation. */
+extern struct path_elem *__gconv_path_elem attribute_hidden;
+/* Maximum length of a single path element. */
+extern size_t __gconv_max_path_elem_len attribute_hidden;
+
+
+/* Structure for alias definition. Simply two strings. */
struct gconv_alias
{
- const char *fromname;
- const char *toname;
+ char *fromname;
+ char *toname;
};
object is also handled. */
struct __gconv_loaded_object
{
- /* Name of the object. */
+ /* Name of the object. It must be the first structure element. */
const char *name;
/* Reference counter for the db functionality. If no conversion is
/* Description for an available conversion module. */
struct gconv_module
{
- const char *from_pattern;
- const char *from_constpfx;
- size_t from_constpfx_len;
- const regex_t *from_regex;
- regex_t from_regex_mem;
-
+ const char *from_string;
const char *to_string;
int cost_hi;
struct gconv_module *left; /* Prefix smaller. */
struct gconv_module *same; /* List of entries with identical prefix. */
- struct gconv_module *matching;/* Next node with more specific prefix. */
struct gconv_module *right; /* Prefix larger. */
};
+/* Internal data structure to represent transliteration module. */
+struct trans_struct
+{
+ const char *name;
+ struct trans_struct *next;
+
+ const char **csnames;
+ size_t ncsnames;
+ __gconv_trans_fct trans_fct;
+ __gconv_trans_context_fct trans_context_fct;
+ __gconv_trans_init_fct trans_init_fct;
+ __gconv_trans_end_fct trans_end_fct;
+};
+
+
/* Flags for `gconv_open'. */
enum
{
/* Global variables. */
/* Database of alias names. */
-extern void *__gconv_alias_db;
+extern void *__gconv_alias_db attribute_hidden;
/* Array with available modules. */
extern size_t __gconv_nmodules;
-extern struct gconv_module *__gconv_modules_db;
+extern struct gconv_module *__gconv_modules_db attribute_hidden;
+
+/* Value of the GCONV_PATH environment variable. */
+extern const char *__gconv_path_envvar attribute_hidden;
+
+
+/* The gconv functions expects the name to be in upper case and complete,
+ including the trailing slashes if necessary. */
+#define norm_add_slashes(str,suffix) \
+ ({ \
+ const char *cp = (str); \
+ char *result; \
+ char *tmp; \
+ size_t cnt = 0; \
+ size_t suffix_len = (suffix) == NULL ? 0 : strlen (suffix); \
+ \
+ while (*cp != '\0') \
+ if (*cp++ == '/') \
+ ++cnt; \
+ \
+ tmp = result = __alloca (cp - (str) + 3 + suffix_len); \
+ cp = (str); \
+ while (*cp != '\0') \
+ *tmp++ = __toupper_l (*cp++, &_nl_C_locobj); \
+ if (cnt < 2) \
+ { \
+ *tmp++ = '/'; \
+ if (cnt < 1) \
+ { \
+ *tmp++ = '/'; \
+ if (suffix != NULL) \
+ tmp = __mempcpy (tmp, suffix, suffix_len); \
+ } \
+ } \
+ *tmp = '\0'; \
+ result; \
+ })
/* Return in *HANDLE decriptor for transformation from FROMSET to TOSET. */
-extern int __gconv_open (const char *__toset, const char *__fromset,
- __gconv_t *__handle, int flags)
+extern int __gconv_open (const char *toset, const char *fromset,
+ __gconv_t *handle, int flags)
internal_function;
/* Free resources associated with transformation descriptor CD. */
/* Transform at most *INBYTESLEFT bytes from buffer starting at *INBUF
according to rules described by CD and place up to *OUTBYTESLEFT
bytes in buffer starting at *OUTBUF. Return number of non-identical
- conversions in *CONVERTED if this pointer is not null. */
-extern int __gconv (__gconv_t __cd, const unsigned char **__inbuf,
- const unsigned char *inbufend, unsigned char **__outbuf,
- unsigned char *outbufend, size_t *converted)
+ conversions in *IRREVERSIBLE if this pointer is not null. */
+extern int __gconv (__gconv_t cd, const unsigned char **inbuf,
+ const unsigned char *inbufend, unsigned char **outbuf,
+ unsigned char *outbufend, size_t *irreversible)
internal_function;
/* Return in *HANDLE a pointer to an array with *NSTEPS elements describing
the single steps necessary for transformation from FROMSET to TOSET. */
-extern int __gconv_find_transform (const char *__toset, const char *__fromset,
- struct __gconv_step **__handle,
- size_t *__nsteps, int flags)
+extern int __gconv_find_transform (const char *toset, const char *fromset,
+ struct __gconv_step **handle,
+ size_t *nsteps, int flags)
+ internal_function;
+
+/* Search for transformation in cache data. */
+extern int __gconv_lookup_cache (const char *toset, const char *fromset,
+ struct __gconv_step **handle, size_t *nsteps,
+ int flags)
+ internal_function;
+
+/* Compare the two name for whether they are after alias expansion the
+ same. This function uses the cache and fails if none is
+ loaded. */
+extern int __gconv_compare_alias_cache (const char *name1, const char *name2,
+ int *result) internal_function;
+
+/* Free data associated with a step's structure. */
+extern void __gconv_release_step (struct __gconv_step *step)
internal_function;
/* Read all the configuration data and cache it. */
-extern void __gconv_read_conf (void);
+extern void __gconv_read_conf (void) attribute_hidden;
+
+/* Try to read module cache file. */
+extern int __gconv_load_cache (void) internal_function;
+
+/* Retrieve pointer to internal cache. */
+extern void *__gconv_get_cache (void);
+
+/* Retrieve pointer to internal module database. */
+extern struct gconv_module *__gconv_get_modules_db (void);
+
+/* Retrieve pointer to internal alias database. */
+extern void *__gconv_get_alias_db (void);
+
+/* Determine the directories we are looking in. */
+extern void __gconv_get_path (void) internal_function;
/* Comparison function to search alias. */
-extern int __gconv_alias_compare (const void *__p1, const void *__p2);
+extern int __gconv_alias_compare (const void *p1, const void *p2)
+ attribute_hidden;
/* Clear reference to transformation step implementations which might
cause the code to be unloaded. */
-extern int __gconv_close_transform (struct __gconv_step *__steps,
- size_t __nsteps)
+extern int __gconv_close_transform (struct __gconv_step *steps,
+ size_t nsteps)
+ internal_function;
+
+/* Free all resources allocated for the transformation record when
+ using the cache. */
+extern void __gconv_release_cache (struct __gconv_step *steps, size_t nsteps)
internal_function;
/* Load shared object named by NAME. If already loaded increment reference
count. */
-extern struct __gconv_loaded_object *__gconv_find_shlib (const char *__name)
+extern struct __gconv_loaded_object *__gconv_find_shlib (const char *name)
internal_function;
/* Release shared object. If no further reference is available unload
the object. */
-extern int __gconv_release_shlib (struct __gconv_loaded_object *__handle)
+extern void __gconv_release_shlib (struct __gconv_loaded_object *handle)
internal_function;
/* Fill STEP with information about builtin module with NAME. */
-extern void __gconv_get_builtin_trans (const char *__name,
- struct __gconv_step *__step)
+extern void __gconv_get_builtin_trans (const char *name,
+ struct __gconv_step *step)
+ internal_function;
+
+/* Try to load transliteration step module. */
+extern int __gconv_translit_find (struct trans_struct *trans)
internal_function;
+/* Transliteration using the locale's data. */
+extern int __gconv_transliterate (struct __gconv_step *step,
+ struct __gconv_step_data *step_data,
+ void *trans_data,
+ __const unsigned char *inbufstart,
+ __const unsigned char **inbufp,
+ __const unsigned char *inbufend,
+ unsigned char **outbufstart,
+ size_t *irreversible) attribute_hidden;
+
+
+/* If NAME is an codeset alias expand it. */
+extern int __gconv_compare_alias (const char *name1, const char *name2)
+ internal_function;
/* Builtin transformations. */
#ifdef _LIBC
-# define __BUILTIN_TRANS(Name) \
- extern int Name (struct __gconv_step *__step, \
- struct __gconv_step_data *__data, \
- const unsigned char **__inbuf, \
- const unsigned char *__inbufend, size_t *__written, \
- int __do_flush, int __consume_incomplete)
-
-__BUILTIN_TRANS (__gconv_transform_ascii_internal);
-__BUILTIN_TRANS (__gconv_transform_internal_ascii);
-__BUILTIN_TRANS (__gconv_transform_utf8_internal);
-__BUILTIN_TRANS (__gconv_transform_internal_utf8);
-__BUILTIN_TRANS (__gconv_transform_ucs2_internal);
-__BUILTIN_TRANS (__gconv_transform_internal_ucs2);
-__BUILTIN_TRANS (__gconv_transform_ucs2reverse_internal);
-__BUILTIN_TRANS (__gconv_transform_internal_ucs2reverse);
-__BUILTIN_TRANS (__gconv_transform_internal_ucs4);
-__BUILTIN_TRANS (__gconv_transform_internal_ucs4le);
-__BUILTIN_TRANS (__gconv_transform_internal_utf16);
-__BUILTIN_TRANS (__gconv_transform_utf16_internal);
-# undef __BUITLIN_TRANS
+# define __BUILTIN_TRANSFORM(Name) \
+ extern int Name (struct __gconv_step *step, \
+ struct __gconv_step_data *data, \
+ const unsigned char **inbuf, \
+ const unsigned char *inbufend, \
+ unsigned char **outbufstart, size_t *irreversible, \
+ int do_flush, int consume_incomplete)
+
+__BUILTIN_TRANSFORM (__gconv_transform_ascii_internal);
+__BUILTIN_TRANSFORM (__gconv_transform_internal_ascii);
+__BUILTIN_TRANSFORM (__gconv_transform_utf8_internal);
+__BUILTIN_TRANSFORM (__gconv_transform_internal_utf8);
+__BUILTIN_TRANSFORM (__gconv_transform_ucs2_internal);
+__BUILTIN_TRANSFORM (__gconv_transform_internal_ucs2);
+__BUILTIN_TRANSFORM (__gconv_transform_ucs2reverse_internal);
+__BUILTIN_TRANSFORM (__gconv_transform_internal_ucs2reverse);
+__BUILTIN_TRANSFORM (__gconv_transform_internal_ucs4);
+__BUILTIN_TRANSFORM (__gconv_transform_ucs4_internal);
+__BUILTIN_TRANSFORM (__gconv_transform_internal_ucs4le);
+__BUILTIN_TRANSFORM (__gconv_transform_ucs4le_internal);
+__BUILTIN_TRANSFORM (__gconv_transform_internal_utf16);
+__BUILTIN_TRANSFORM (__gconv_transform_utf16_internal);
+# undef __BUITLIN_TRANSFORM
+
+/* Specialized conversion function for a single byte to INTERNAL, recognizing
+ only ASCII characters. */
+extern wint_t __gconv_btwoc_ascii (struct __gconv_step *step, unsigned char c);
#endif
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