return string(buf);
}
+ObjectReference::ObjectReference()
+ : segment(""), object("")
+{
+}
ObjectReference::ObjectReference(const std::string& segment, int sequence)
: segment(segment)
/* Parse a string object reference and return a pointer to a new
* ObjectReference. The caller is responsible for freeing the object. NULL is
* returned if there is an error in the syntax. */
-ObjectReference *ObjectReference::parse(const std::string& s)
+ObjectReference *ObjectReference::parse(const std::string& str)
{
- // TODO: Implement
- return NULL;
+ const char *s = str.c_str();
+ const char *t;
+
+ // Segment
+ t = s;
+ while ((*t >= '0' && *t <= '9') || (*t >= 'a' && *t <= 'f') || (*t == '-'))
+ t++;
+ if (*t != '/')
+ return NULL;
+ string segment(s, t - s);
+
+ // Object sequence number
+ t++;
+ s = t;
+ while ((*t >= '0' && *t <= '9') || (*t >= 'a' && *t <= 'f'))
+ t++;
+ if (*t != '\0' && *t != '(' && *t != '[')
+ return NULL;
+ string object(s, t - s);
+
+ // Checksum
+ string checksum;
+ if (*t == '(') {
+ t++;
+ s = t;
+ while (*t != ')' && *t != '\0')
+ t++;
+ if (*t != ')')
+ return NULL;
+ checksum = string(s, t - s);
+ t++;
+ }
+
+ // Range
+ bool have_range = false;
+ int64_t range1, range2;
+ if (*t == '[') {
+ t++;
+ s = t;
+ while (*t >= '0' && *t <= '9')
+ t++;
+ if (*t != '+')
+ return NULL;
+
+ string val(s, t - s);
+ range1 = atoll(val.c_str());
+
+ t++;
+ s = t;
+ while (*t >= '0' && *t <= '9')
+ t++;
+ if (*t != ']')
+ return NULL;
+
+ val = string(s, t - s);
+ range2 = atoll(val.c_str());
+
+ have_range = true;
+ }
+
+ ObjectReference *ref = new ObjectReference(segment, object);
+ if (checksum.size() > 0)
+ ref->set_checksum(checksum);
+
+ if (have_range)
+ ref->set_range(range1, range2);
+
+ return ref;
}