Ejemplo n.º 1
0
jchar HashtableTextDump::unescape(const char* from, const char* end, int count) {
  jchar value = 0;

  corrupted_if(from + count > end);

  for (int i=0; i<count; i++) {
    char c = *from++;
    switch (c) {
    case '0': case '1': case '2': case '3': case '4':
    case '5': case '6': case '7': case '8': case '9':
      value = (value << 4) + c - '0';
      break;
    case 'a': case 'b': case 'c':
    case 'd': case 'e': case 'f':
      value = (value << 4) + 10 + c - 'a';
      break;
    case 'A': case 'B': case 'C':
    case 'D': case 'E': case 'F':
      value = (value << 4) + 10 + c - 'A';
      break;
    default:
      ShouldNotReachHere();
    }
  }
  return value;
}
Ejemplo n.º 2
0
void HashtableTextDump::skip_past(char c) {
  for (;;) {
    corrupted_if(remain() < 1);
    if (*_p++ == c) {
      return;
    }
  }
}
Ejemplo n.º 3
0
void HashtableTextDump::check_version(const char* ver) {
  int len = (int)strlen(ver);
  corrupted_if(remain() < len);
  if (strncmp(_p, ver, len) != 0) {
    quit("wrong version of hashtable dump file", _filename);
  }
  _p += len;
  skip_newline();
}
Ejemplo n.º 4
0
void HashtableTextDump::get_utf8(char* utf8_buffer, int utf8_length) {
  // cache in local vars
  const char* from = _p;
  const char* end = _end;
  char* to = utf8_buffer;
  int n = utf8_length;

  for (; n > 0 && from < end; n--) {
    if (*from != '\\') {
      *to++ = *from++;
    } else {
      corrupted_if(from + 2 > end);
      char c = from[1];
      from += 2;
      switch (c) {
      case 'x':
        {
          jchar value = unescape(from, end, 2);
          from += 2;
          assert(value <= 0xff, "sanity");
          *to++ = (char)(value & 0xff);
        }
        break;
      case 't':  *to++ = '\t'; break;
      case 'n':  *to++ = '\n'; break;
      case 'r':  *to++ = '\r'; break;
      case '\\': *to++ = '\\'; break;
      default:
        corrupted(_p, "Unsupported character");
      }
    }
  }
  corrupted_if(n > 0); // expected more chars but file has ended
  _p = from;
  skip_newline();
}
Ejemplo n.º 5
0
int HashtableTextDump::skip(char must_be_char) {
  corrupted_if(remain() < 1);
  corrupted_if(*_p++ != must_be_char);
  return 0;
}
Ejemplo n.º 6
0
int HashtableTextDump::skip(char must_be_char) {
  corrupted_if(remain() < 1, "Truncated");
  corrupted_if(*_p++ != must_be_char, "Unexpected character");
  return 0;
}