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Diffstat (limited to 'iconv/gconv_int.h')
| -rw-r--r-- | iconv/gconv_int.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/iconv/gconv_int.h b/iconv/gconv_int.h new file mode 100644 index 0000000..5261284 --- /dev/null +++ b/iconv/gconv_int.h @@ -0,0 +1,153 @@ +/* Copyright (C) 1997, 1998 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. + + 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 <regex.h> + +__BEGIN_DECLS + + +/* Structure for alias definition. Simply to strings. */ +struct gconv_alias +{ + __const char *fromname; + __const char *toname; +}; + + +/* Default size of intermediate buffers. */ +#define GCONV_DEFAULT_BUFSIZE 8160 + + +/* 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; + + __const char *to_string; + + int cost; + + __const char *module_name; +}; + + +/* 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; + + +/* Return in *HANDLE decriptor for transformation from FROMSET to TOSET. */ +extern int __gconv_open __P ((__const char *__toset, __const char *__fromset, + gconv_t *__handle)) + internal_function; + +/* Free resources associated with transformation descriptor CD. */ +extern int __gconv_close __P ((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 written + characters in *CONVERTED if this pointer is not null. */ +extern int __gconv __P ((gconv_t __cd, + __const char **__inbuf, size_t *__inbytesleft, + char **__outbuf, size_t *__outbytesleft, + size_t *__converted)) + 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 __P ((__const char *__toset, + __const char *__fromset, + struct gconv_step **__handle, + size_t *__nsteps)) + internal_function; + +/* Read all the configuration data and cache it. */ +extern void __gconv_read_conf __P ((void)) + internal_function; + +/* Comparison function to search alias. */ +extern int __gconv_alias_compare __P ((__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 __P ((struct gconv_step *__steps, + size_t __nsteps)) + internal_function; + + +/* Find in the shared object associated with HANDLE for a function with + name NAME. Return function pointer or NULL. */ +extern void *__gconv_find_func __P ((void *__handle, __const char *__name)) + internal_function; + +/* Load shared object named by NAME. If already loaded increment reference + count. */ +extern void *__gconv_find_shlib __P ((__const char *__name)) + internal_function; + +/* Release shared object. If no further reference is available unload + the object. */ +extern int __gconv_release_shlib __P ((void *__handle)) + internal_function; + +/* Fill STEP with information about builtin module with NAME. */ +extern void __gconv_get_builtin_trans __P ((__const char *__name, + struct gconv_step *__step)) + internal_function; + + + +/* Builtin transformations. */ +#ifdef _LIBC +# define __BUILTIN_TRANS(Name) \ + extern int Name __P ((struct gconv_step *__step, \ + struct gconv_step_data *__data, __const char *__inbuf,\ + size_t *__inlen, size_t *__written, int __do_flush)) + +__BUILTIN_TRANS (__gconv_transform_dummy); +__BUILTIN_TRANS (__gconv_transform_ucs4_utf8); +__BUILTIN_TRANS (__gconv_transform_utf8_ucs4); +__BUILTIN_TRANS (__gconv_transform_ucs2_ucs4); +__BUILTIN_TRANS (__gconv_transform_ucs4_ucs2); +# undef __BUITLIN_TRANS + +extern int __gconv_transform_init_rstate __P ((struct gconv_step *__step, + struct gconv_step_data *__data)); +extern void __gconv_transform_end_rstate __P ((struct gconv_step_data *__data)); + +#endif + +__END_DECLS + +#endif /* gconv_int.h */ |