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#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include "config.h"
#include "support.h"
#ifdef HAVE_LOCALE_H
#include <locale.h>
#endif
#ifdef HAVE_ICONV
#include <iconv.h>
#endif
#ifdef HAVE_LANGINFO_CODESET
#include <langinfo.h>
#endif
#define BUFSIZE 1024
static char *charset = NULL;
#ifdef HAVE_LOCALE_H
static char *locale = NULL;
#endif
#ifdef HAVE_ICONV
iconv_t iconv_from_uft8 = (iconv_t)(-1);
iconv_t iconv_to_uft8 = (iconv_t)(-1);
#endif
char *
trim(char *str)
{
char *end;
if( str==NULL )
return NULL;
while( IS_WHITESPACE(*str) )
str++;
end=str+strlen(str)-1;
while( end>str && IS_WHITESPACE(*end) )
{
*end = '\0';
end--;
}
return str;
}
char *
remove_trailing_slash(char *path)
{
int len;
if( path==NULL )
return NULL;
len=strlen(path);
if( len>1 && path[len-1] == '/' )
path[len-1] = '\0';
return path;
}
char *
lowerstr(char *str)
{
size_t i;
size_t len = strlen(str);
if( str==NULL )
return NULL;
i=0;
while(i<len && str[i])
{
str[i] = tolower(str[i]);
i++;
}
return str;
}
char *
concat_path(char *p1, char *p2)
{
size_t size;
char *path;
char append_slash = 0;
size = strlen(p1);
if( size==0 || p1[size-1]!='/' )
{
size++;
append_slash = 1;
}
size += strlen(p2);
size++;
path = calloc(size, sizeof(char));
strncpy(path, p1, size);
if( append_slash )
strncat(path, "/", size);
strncat(path, p2, size);
return path;
}
#ifndef HAVE_BASENAME
char *
basename(char *path)
{
char *end;
path = remove_trailing_slash(path);
end = path + strlen(path);
while( end>path && *end!='/' )
end--;
if( *end=='/' && end!=path )
return end+1;
return path;
}
#endif /* HAVE_BASENAME */
#ifndef HAVE_STRCASESTR
char *
strcasestr(const char *haystack, const char *needle)
{
return strstr(lowerstr(haystack), lowerstr(needle));
}
#endif /* HAVE_STRCASESTR */
int
charset_init(void)
{
#ifdef HAVE_LOCALE_H
/* get current locale */
if( (locale=setlocale(LC_CTYPE,"")) == NULL )
{
fprintf(stderr,"setlocale() - failed!\n");
return -1;
}
#endif
/* get charset */
if( (charset=nl_langinfo(CODESET)) == NULL )
{
fprintf(stderr,
"nl_langinfo() failed using default:" DEFAULT_CHARSET "\n");
charset = DEFAULT_CHARSET;
}
#ifdef DEBUG
fprintf(stderr, "charset: %s\n", charset);
#endif
#ifdef HAVE_ICONV
/* allocate descriptor for character set conversion */
iconv_from_uft8 = iconv_open(charset, "UTF-8");
if( iconv_from_uft8 == (iconv_t)(-1) )
{
perror("iconv_open");
return -1;
}
iconv_to_uft8 = iconv_open("UTF-8", charset);
if( iconv_to_uft8 == (iconv_t)(-1) )
{
perror("iconv_open");
return -1;
}
#endif
return 0;
}
int
charset_close(void)
{
#ifdef HAVE_ICONV
if( iconv_from_uft8 != (iconv_t)(-1) )
{
iconv_close(iconv_from_uft8);
iconv_from_uft8 = (iconv_t)(-1);
}
if( iconv_to_uft8 != (iconv_t)(-1) )
{
iconv_close(iconv_to_uft8);
iconv_to_uft8 = (iconv_t)(-1);
}
#endif
return 0;
}
#ifdef HAVE_ICONV
static char *
charconv(iconv_t iv, char *str)
{
size_t inleft;
size_t retlen;
char *ret;
if( str==NULL )
return NULL;
if( iv == (iconv_t)(-1) )
return strdup(str);
ret = NULL;
retlen = 0;
inleft = strlen(str);
while( inleft>0 )
{
char buf[BUFSIZE];
size_t outleft = BUFSIZE;
char *bufp = buf;
if( iconv(iv, &str, &inleft, &bufp, &outleft) <0 )
{
perror("iconv");
free(ret);
return NULL;
}
ret = realloc(ret, BUFSIZE-outleft+1);
memcpy(ret+retlen, buf, BUFSIZE-outleft);
retlen += BUFSIZE-outleft;
ret[retlen] = '\0';
}
return ret;
}
#endif
char *
utf8_to_locale(char *str)
{
#ifdef HAVE_ICONV
return charconv(iconv_from_uft8, str);
#else
return strdup(str);
#endif
}
char *
locale_to_utf8(char *str)
{
#ifdef HAVE_ICONV
return charconv(iconv_to_uft8, str);
#else
return strdup(str);
#endif
}
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