1 // Copyright (c) 2006, Google Inc.
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29 
30 #include "common/scoped_ptr.h"
31 #include "common/mac/string_utilities.h"
32 
33 namespace MacStringUtils {
34 
35 using google_breakpad::scoped_array;
36 
ConvertToString(CFStringRef str)37 std::string ConvertToString(CFStringRef str) {
38   CFIndex length = CFStringGetLength(str);
39   std::string result;
40 
41   if (!length)
42     return result;
43 
44   CFIndex maxUTF8Length =
45     CFStringGetMaximumSizeForEncoding(length, kCFStringEncodingUTF8);
46   scoped_array<UInt8> buffer(new UInt8[maxUTF8Length + 1]);
47   CFIndex actualUTF8Length;
48   CFStringGetBytes(str, CFRangeMake(0, length), kCFStringEncodingUTF8, 0,
49                    false, buffer.get(), maxUTF8Length, &actualUTF8Length);
50   buffer[actualUTF8Length] = 0;
51   result.assign((const char *)buffer.get());
52 
53   return result;
54 }
55 
IntegerValueAtIndex(string & str,unsigned int idx)56 unsigned int IntegerValueAtIndex(string &str, unsigned int idx) {
57   string digits("0123456789"), temp;
58   size_t start = 0;
59   size_t end;
60   size_t found = 0;
61   unsigned int result = 0;
62 
63   for (; found <= idx; ++found) {
64     end = str.find_first_not_of(digits, start);
65 
66     if (end == string::npos)
67       end = str.size();
68 
69     temp = str.substr(start, end - start);
70 
71     if (found == idx) {
72       result = atoi(temp.c_str());
73     }
74 
75     start = str.find_first_of(digits, end + 1);
76 
77     if (start == string::npos)
78       break;
79   }
80 
81   return result;
82 }
83 
84 }  // namespace MacStringUtils
85