/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper , 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. 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. 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. */ #ifndef _GCONV_INT_H #define _GCONV_INT_H 1 #include "gconv.h" #include __BEGIN_DECLS /* Structure for alias definition. Simply to strings. */ struct gconv_alias { const char *fromname; const char *toname; }; /* How many character should be conveted in one call? */ #define GCONV_NCHAR_GOAL 8160 /* Structure describing one loaded shared object. This normally are objects to perform conversation but as a special case the db shared object is also handled. */ struct __gconv_loaded_object { /* Name of the object. */ const char *name; /* Reference counter for the db functionality. If no conversion is needed we unload the db library. */ int counter; /* The handle for the shared object. */ void *handle; /* Pointer to the functions the module defines. */ __gconv_fct fct; __gconv_init_fct init_fct; __gconv_end_fct end_fct; }; /* 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 *to_string; int cost_hi; int cost_lo; const char *module_name; 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. */ }; /* Flags for `gconv_open'. */ enum { GCONV_AVOID_NOCONV = 1 << 0 }; /* Global variables. */ /* Database of alias names. */ extern void *__gconv_alias_db; /* Array with available modules. */ extern size_t __gconv_nmodules; extern struct gconv_module *__gconv_modules_db; /* The gconv functions expects the name to be in upper case and complete, including the trailing slashes if necessary. */ #define norm_add_slashes(str) \ ({ \ const char *cp = (str); \ char *result; \ char *tmp; \ size_t cnt = 0; \ \ while (*cp != '\0') \ if (*cp++ == '/') \ ++cnt; \ \ tmp = result = alloca (cp - (str) + 3); \ cp = (str); \ while (*cp != '\0') \ *tmp++ = _toupper (*cp++); \ if (cnt < 2) \ { \ *tmp++ = '/'; \ if (cnt < 1) \ *tmp++ = '/'; \ } \ *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) internal_function; /* Free resources associated with transformation descriptor CD. */ extern int __gconv_close (__gconv_t cd) internal_function; /* 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 *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) internal_function; /* Read all the configuration data and cache it. */ extern void __gconv_read_conf (void); /* Comparison function to search alias. */ extern int __gconv_alias_compare (const void *p1, const void *p2); /* 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) 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) internal_function; /* Release shared object. If no further reference is available unload the object. */ extern int __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) internal_function; /* Transliteration using the locale's data. */ extern int __gconv_transliterate (struct __gconv_step *step, struct __gconv_step_data *step_data, __const unsigned char *inbufstart, __const unsigned char **inbufp, __const unsigned char *inbufend, unsigned char **outbufstart, size_t *irreversible); /* 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, \ unsigned char **outbufstart, size_t *irreversible, \ 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_ucs4_internal); __BUILTIN_TRANS (__gconv_transform_internal_ucs4le); __BUILTIN_TRANS (__gconv_transform_ucs4le_internal); __BUILTIN_TRANS (__gconv_transform_internal_utf16); __BUILTIN_TRANS (__gconv_transform_utf16_internal); # undef __BUITLIN_TRANS #endif __END_DECLS #endif /* gconv_int.h */