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  • util.c

    r89f5338 rc1522ec  
    399399}
    400400
    401 /* downcase the string 'foo' */
    402 void downstr(char *foo)
    403 {
    404   int i;
    405   for (i=0; foo[i]!='\0'; i++) {
    406     foo[i]=tolower(foo[i]);
    407   }
    408 }
    409 
    410401/* Caller must free response.
    411402 * Takes in strings which are space-separated lists of tokens
     
    446437void *owl_malloc(size_t size)
    447438{
    448   return(malloc(size));
     439  return(g_malloc(size));
    449440}
    450441
    451442void owl_free(void *ptr)
    452443{
    453   free(ptr);
     444  g_free(ptr);
    454445}
    455446
    456447char *owl_strdup(const char *s1)
    457448{
    458   return(strdup(s1));
     449  return(g_strdup(s1));
    459450}
    460451
    461452void *owl_realloc(void *ptr, size_t size)
    462453{
    463   return(realloc(ptr, size));
     454  return(g_realloc(ptr, size));
    464455}
    465456
    466457/* allocates memory and returns the string or null.
    467458 * caller must free the string.
    468  * from Linux sprintf man page.
    469459 */
    470460char *owl_sprintf(const char *fmt, ...)
    471461{
    472   int n, size = 100;
    473   char *p;
    474462  va_list ap;
    475   if ((p = owl_malloc (size)) == NULL) return (NULL);
    476   while (1) {
    477     /* Try to print in the allocated space. */
    478     va_start(ap, fmt);
    479     n = vsnprintf (p, size, fmt, ap);
    480     va_end(ap);
    481     /* If that worked, return the string. */
    482     if (n > -1 && n < size)
    483       return p;
    484     /* Else try again with more space. */
    485     if (n > -1)    /* glibc 2.1 */
    486       size = n+1; /* precisely what is needed */
    487     else           /* glibc 2.0 */
    488       size *= 2;  /* twice the old size */
    489     if ((p = owl_realloc (p, size)) == NULL)
    490       return NULL;
    491   }
    492 }
     463  char *ret = NULL;
     464  va_start(ap, fmt);
     465  ret = g_strdup_vprintf(fmt, ap);
     466  va_end(ap);
     467  return ret;
     468}
     469
    493470
    494471/* Return the owl color associated with the named color.  Return -1
     
    776753}
    777754
    778 char * owl_get_datadir() {
    779     char * datadir = getenv("BARNOWL_DATA_DIR");
    780     if(datadir != NULL)
    781         return strchr(datadir, '=') + 1;
    782     return DATADIR;
     755char * owl_get_datadir()
     756{
     757  char * datadir = getenv("BARNOWL_DATA_DIR");
     758  if(datadir != NULL)
     759    return strchr(datadir, '=') + 1;
     760  return DATADIR;
     761}
     762
     763/* Strips format characters from a valid utf-8 string. Returns the
     764   empty string if 'in' does not validate. */
     765char * owl_strip_format_chars(char *in)
     766{
     767  char *r;
     768  if (g_utf8_validate(in, -1, NULL)) {
     769    char *s, *p;
     770    r = owl_malloc(strlen(in)+1);
     771    r[0] = '\0';
     772    s = in;
     773    p = strchr(s, OWL_FMTEXT_UC_STARTBYTE_UTF8);
     774    while(p) {
     775      /* If it's a format character, copy up to it, and skip all
     776         immediately following format characters. */
     777      if (owl_fmtext_is_format_char(g_utf8_get_char(p))) {
     778        strncat(r, s, p-s);
     779        p = g_utf8_next_char(p);
     780        while (p && owl_fmtext_is_format_char(g_utf8_get_char(p))) {
     781          p = g_utf8_next_char(p);
     782        }
     783        s = p;
     784        p = strchr(s, OWL_FMTEXT_UC_STARTBYTE_UTF8);
     785      }
     786      else {
     787        p = strchr(p+1, OWL_FMTEXT_UC_STARTBYTE_UTF8);
     788      }
     789    }
     790    if (s) strcat(r,s);
     791  }
     792  else {
     793    r = owl_strdup("");
     794  }
     795  return r;
     796}
     797
     798/* If in is not UTF-8, convert from ISO-8859-1. We may want to allow
     799 * the caller to specify an alternative in the future. We also strip
     800 * out characters in Unicode Plane 16, as we use that plane internally
     801 * for formatting.
     802 */
     803char * owl_validate_or_convert(char *in)
     804{
     805  if (g_utf8_validate(in, -1, NULL)) {
     806    return owl_strip_format_chars(in);
     807  }
     808  else {
     809    return g_convert(in, -1,
     810                     "UTF-8", "ISO-8859-1",
     811                     NULL, NULL, NULL);
     812  }
     813}
     814/* Attempts to convert 'in' to ISO-8859-1. Returns that if possible,
     815   else returns UTF-8.
     816 */
     817char * owl_get_iso_8859_1_if_possible(char *in)
     818{
     819  char *out;
     820  if (g_utf8_validate(in, -1, NULL)) {
     821    out = g_convert(in, -1,
     822                    "ISO-8859-1", "UTF-8",
     823                    NULL, NULL, NULL);
     824    if (!out) {
     825      out = owl_strdup(in);
     826    }
     827  }
     828  else {
     829    out = owl_strdup("");
     830  }
     831  return out;
    783832}
    784833
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