C++ (Cpp) bson_utf8_get_char示例

示例#1

文件： test-utf8.c 项目： jeromelebel/libbson

static void
test_bson_utf8_get_char (void)
{
   static const char *test1 = "asdf";
   static const unsigned char test2[] = {0xe2, 0x82, 0xac, ' ', 0xe2, 0x82, 0xac, ' ', 0xe2, 0x82, 0xac, 0};
   const char *c;

   c = test1;
   assert(bson_utf8_get_char(c) == 'a');
   c = bson_utf8_next_char(c);
   assert(bson_utf8_get_char(c) == 's');
   c = bson_utf8_next_char(c);
   assert(bson_utf8_get_char(c) == 'd');
   c = bson_utf8_next_char(c);
   assert(bson_utf8_get_char(c) == 'f');
   c = bson_utf8_next_char(c);
   assert(!*c);

   c = (const char *)test2;
   assert(bson_utf8_get_char(c) == 0x20AC);
   c = bson_utf8_next_char(c);
   assert(c == (const char *)test2 + 3);
   assert(bson_utf8_get_char(c) == ' ');
   c = bson_utf8_next_char(c);
   assert(bson_utf8_get_char(c) == 0x20AC);
   c = bson_utf8_next_char(c);
   assert(bson_utf8_get_char(c) == ' ');
   c = bson_utf8_next_char(c);
   assert(bson_utf8_get_char(c) == 0x20AC);
   c = bson_utf8_next_char(c);
   assert(!*c);
}

示例#2

文件： mongoc-uri.c 项目： fionaRowan/mongo-c-driver

char *
mongoc_uri_unescape (const char *escaped_string)
{
   bson_unichar_t c;
   bson_string_t *str;
   unsigned int hex = 0;
   const char *ptr;
   const char *end;
   size_t len;

   BSON_ASSERT (escaped_string);

   len = strlen(escaped_string);

   /*
    * Double check that this is a UTF-8 valid string. Bail out if necessary.
    */
   if (!bson_utf8_validate(escaped_string, len, false)) {
      MONGOC_WARNING("%s(): escaped_string contains invalid UTF-8",
                     BSON_FUNC);
      return NULL;
   }

   ptr = escaped_string;
   end = ptr + len;
   str = bson_string_new(NULL);

   for (; *ptr; ptr = bson_utf8_next_char(ptr)) {
      c = bson_utf8_get_char(ptr);
      switch (c) {
      case '%':
         if (((end - ptr) < 2) ||
             !isxdigit(ptr[1]) ||
             !isxdigit(ptr[2]) ||
#ifdef _MSC_VER
             (1 != sscanf_s(&ptr[1], "%02x", &hex)) ||
#else
             (1 != sscanf(&ptr[1], "%02x", &hex)) ||
#endif
             !isprint(hex)) {
            bson_string_free(str, true);
            return NULL;
         }
         bson_string_append_c(str, hex);
         ptr += 2;
         break;
      default:
         bson_string_append_unichar(str, c);
         break;
      }
   }

   return bson_string_free(str, false);
}

示例#3

文件： bson-json.c 项目： 13pass/mongo-perl-driver

static bool
_bson_json_all_whitespace (const char *utf8)
{
   bool all_whitespace = true;

   for (; *utf8; utf8 = bson_utf8_next_char (utf8)) {
      if (!isspace (bson_utf8_get_char (utf8))) {
         all_whitespace = false;
         break;
      }
   }

   return all_whitespace;
}

示例#4

文件： mongoc-uri.c 项目： fionaRowan/mongo-c-driver

void
mongoc_uri_lowercase_hostname (const char *src,
                               char *buf /* OUT */,
                               int len)
{
   bson_unichar_t c;
   const char *iter;
   char *buf_iter;

   /* TODO: this code only accepts ascii, and assumes that lowercased
      chars are the same width as originals */
   for (iter = src, buf_iter = buf;
        iter && *iter && (c = bson_utf8_get_char(iter)) && buf_iter - buf < len;
        iter = bson_utf8_next_char(iter), buf_iter++) {
      assert(c < 128);
      *buf_iter = tolower(c);
   }
}