path: root/support/dktools/dk4loc.c

/*
	WARNING: This file was generated by dkct.
	Changes you make here will be lost if dkct is run again!
	You should modify the original source and run dkct on it.
	Original source: dk4loc.ctr
*/

/*
Copyright (C) 2015-2017, Dirk Krause

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice,
  this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above opyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.
* Neither the name of the author nor the names of contributors may be used
  to endorse or promote products derived from this software without specific
  prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

/**	@file dk4loc.c The dk4loc module.
*/


#line 67 "dk4loc.ctr"

#include "dk4loc.h"

#ifndef STDLIB_H_INCLUDED
#include <stdlib.h>
#define	STDLIB_H_INCLUDED 1
#endif

#if DK4_HAVE_STRING_H
#ifndef STRING_H_INCLUDED
#include <string.h>
#define STRING_H_INCLUDED 1
#endif
#endif

#if DK4_HAVE_CTYPE_H
#ifndef CTYPE_H_INCLUDED
#include <ctype.h>
#define	CTYPE_H_INCLUDED 1
#endif
#endif

#ifndef DK4ENC_H_INCLUDED
#include "dk4enc.h"
#endif

#ifndef DK4STR8_H_INCLUDED
#include "dk4str8.h"
#endif

#if DK4_ON_WINDOWS

#ifndef DK4WREG8_H_INCLUDED
#include "dk4wreg8.h"
#endif
#ifndef DK4WREGC_H_INCLUDED
#include "dk4wregc.h"
#endif

#endif




#line 110 "dk4loc.ctr"



/**	Keywords used by the module.
*/
static const char * const dk4loc_mod_kw_8[] = {
/* 0 */
"LANG",

/* 1 */
"utf8",

/* 2 */
"UTF-8",

/* 3 */
"Control Panel\\International",

/* 4 */
"LocaleName",

/* 5 */
"sLanguage",

NULL


#line 133 "dk4loc.ctr"
};



static
int
dk4loc_use_default(dkChar *lptr, size_t szl, dk4_er_t *erp)
{
  int		 back = 0;
  if ((NULL != lptr) && (2 < szl)) {
    lptr[0] = dkT('e');
    lptr[1] = dkT('n');
    lptr[2] = dkT('\0');
    back = 1;
  } else {
    dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
  }
  return back;
}


int
dk4loc_get_settings(
  dkChar	*lang,
  size_t	 szlang,
  dkChar	*reg,
  size_t	 szreg,
  int		*enc,
  dk4_er_t	*erp
)
{
#if DK4_ON_WINDOWS
  char		 buf[64];	/* Buffer to process getenv result */
  void		*kptr;		/* Registry key pointer */
  dkChar	*pd;		/* Copy string */
  char		*p3;		/* Region */
  char		*p4;		/* Copy string */
  size_t	 sz;		/* String length */
  int		 res;		/* Result from RegQueryValueEx() */
  int		 expand	= 0;	/* Flag: Expansion necessary. */
#else
  char		 buf[64];	/* Buffer to process getenv result */
  dkChar	*pd;		/* Copy string */
  char		*p1;		/* Result from getenv */
  char		*p2;		/* Encoding */
  char		*p3;		/* Region */
  char		*p4;		/* Copy string */
  size_t	 sz;		/* String length */
#endif
  int		 back	=	0;
  

#line 184 "dk4loc.ctr"
  if ((NULL != lang) && (0 < szlang)) { *lang = dkT('\0'); }
  if ((NULL != reg ) && (0 < szreg )) { *reg = dkT('\0'); }
  if (NULL != enc) { *enc = DK4_ENCODING_ASCII; }
  if ((NULL != lang) && (NULL != reg) && (NULL != enc)) {
    if ((0 < szlang) && (0 < szreg)) {
#if DK4_ON_WINDOWS
#if DK4_CHAR_SIZE > 1
      *enc = DK4_ENCODING_UTF16;
#else
      *enc = DK4_ENCODING_ASCII;
#endif
      kptr = dk4wreg_open_key_c8(DK4_WREGKEY_HKCU, dk4loc_mod_kw_8[3], 0, erp);
      if (NULL != kptr) {
        res = dk4wreg_get_string_c8(
	  kptr, dk4loc_mod_kw_8[4], buf, sizeof(buf), &expand, erp
	);
	if (0 != res) {
	  p3 = dk4str8_chr(buf, '-');
	  if (NULL != p3) { *(p3++) = '\0'; }
	  dk4str8_normalize(buf, NULL);
	  if (NULL != p3) { dk4str8_normalize(p3, NULL); }
	  sz = dk4str8_len(buf);
	  if (0 < sz) {
	    if (szlang > sz) {
	      /* strcpy(lang, buf); */
	      pd = lang; p4 = buf;
	      while('\0' != *p4) {
		*(pd++) = (dkChar)dk4str8_tolower(*(p4++));
	      }
	      *pd = dkT('\0');
	      back = 1;
	      sz = dk4str8_len(p3);
	      if (0 < sz) {
	        if (szreg > sz) {
		  /* strcpy(reg, p3); */
		  pd = reg; p4 = p3;
		  while('\0' != *p4) {
#if 0
		    *(pd++) = (dkChar)(tolower((unsigned char)(*(p4++))));
#endif
		    *(pd++) = (dkChar)dk4str8_tolower(*(p4++));
		  }
		  *pd = dkT('\0');
		} else {
		  dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
		  back = 0;
		}
	      }
	    } else {
	      dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
	    }
	  } else {
	    back = dk4loc_use_default(lang, szlang, erp);
	  }
	} else {
	  res = dk4wreg_get_string_c8(
	    kptr, dk4loc_mod_kw_8[5], buf, sizeof(buf), &expand, erp
	  );
	  if (0 != res) {
	    dk4str8_normalize(buf, NULL);
	    sz = dk4str8_len(buf);
	    if (2 < sz) { buf[2] = '\0'; }
	    sz = dk4str8_len(buf);
	    if (0 < sz) {
	      if (szlang > sz) {
	        pd = lang; p4 = buf;
		while ('\0' != *p4) {
		  *(pd++) = (dkChar)(tolower((unsigned char)(*(p4++))));
		}
		*pd = dkT('\0');
		back = 1;
	      } else {
	        dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
	      }
	    } else {
	      back = dk4loc_use_default(lang, szlang, erp);
	    }
	  } else {
	    back = dk4loc_use_default(lang, szlang, erp);
	  }
	}
        dk4wreg_close_key(kptr);
      } else {
        back = dk4loc_use_default(lang, szlang, erp);
      }
#else
      p1 = getenv(dk4loc_mod_kw_8[0]);
      if (NULL != p1) {				

#line 272 "dk4loc.ctr"
        if (sizeof(buf) > dk4str8_len(p1)) {		

#line 273 "dk4loc.ctr"
	  dk4str8_cpy_s(buf, sizeof(buf), p1, NULL);
	  p2 = dk4str8_chr(buf, '.');
	  if (NULL != p2) {			

#line 276 "dk4loc.ctr"
	    *(p2++) = '\0';			

#line 277 "dk4loc.ctr"
	  }
	  p3 = dk4str8_chr(buf, '_');
	  if (NULL != p3) {			

#line 280 "dk4loc.ctr"
	    *(p3++) = '\0';			

#line 281 "dk4loc.ctr"
	  }					

#line 282 "dk4loc.ctr"
	  dk4str8_normalize(buf, NULL);		

#line 283 "dk4loc.ctr"
	  if (NULL != p2) { dk4str8_normalize(p2, NULL); }
	  if (NULL != p3) { dk4str8_normalize(p3, NULL); }
	  sz = dk4str8_len(buf);			

#line 286 "dk4loc.ctr"
	  if (0 < sz) {
	    if (szlang > sz) {
	      /* strcpy(lang, buf); */
	      pd = lang; p4 = buf;
	      while('\0' != *p4) {
	        *(pd++) = (dkChar)(tolower((unsigned char)(*(p4++))));
	      }
	      *pd = dkT('\0');
	      back = 1;
	      if (NULL != p3) {
	        sz = dk4str8_len(p3);
	        if (0 < sz) {
		  if (szreg > sz) {
		    /* strcpy(reg, p3); */
		    pd = reg; p4 = p3;
		    while('\0' != *p4) {
		      *(pd++) = (dkChar)(tolower((unsigned char)(*(p4++))));
		    }
		    *pd = dkT('\0');
		  } else {
		    dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
		    back = 0;
		  }
		}
	      }
#if DK4_CHAR_SIZE > 1
#if DK4_CHAR_SIZE > 2
	     

#line 314 "dk4loc.ctr"
	      *enc = DK4_ENCODING_32;
#else
	      

#line 317 "dk4loc.ctr"
	      *enc = DK4_ENCODING_UTF16;
#endif
#else
	      

#line 321 "dk4loc.ctr"
	      *enc = DK4_ENCODING_ASCII;
	      if (NULL != p2) {
	        if (0 == dk4str8_casecmp(p2, dk4loc_mod_kw_8[1])) {
		  *enc = DK4_ENCODING_UTF8;
		} else {
		  if (0 == dk4str8_casecmp(p2, dk4loc_mod_kw_8[2])) {
		    *enc = DK4_ENCODING_UTF8;
		  }
		}
	      }
#endif
	    } else {				

#line 333 "dk4loc.ctr"
	      dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
	    }
	  } else {				

#line 336 "dk4loc.ctr"
	    back = dk4loc_use_default(lang, szlang, erp);
	  }
	} else {				

#line 339 "dk4loc.ctr"
	  dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
	}
      } else {					

#line 342 "dk4loc.ctr"
        back = dk4loc_use_default(lang, szlang, erp);
      }
#endif
    } else {					

#line 346 "dk4loc.ctr"
      dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
    }
  } else {					

#line 349 "dk4loc.ctr"
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  } 

#line 351 "dk4loc.ctr"
  return back;
}