Add Mac string utilities. Reviewed by mmentovai. Fixes issue #98.

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@96 4c0a9323-5329-0410-9bdc-e9ce6186880e

2 files changed, 132 insertions, 0 deletions

diff --git a/src/common/mac/string_utilities.cc b/src/common/mac/string_utilities.cc
new file mode 100644
index 00000000..b6b1dc66
--- /dev/null
+++ b/src/common/mac/string_utilities.cc
@@ -0,0 +1,80 @@
+// Copyright (c) 2006, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "processor/scoped_ptr.h"
+#include "common/mac/string_utilities.h"
+
+namespace MacStringUtils {
+
+using google_airbag::scoped_array;
+
+std::string ConvertToString(CFStringRef str) {
+  CFIndex length = CFStringGetLength(str);
+  std::string result;
+
+  if (!length)
+    return result;
+
+  CFIndex maxUTF8Length =
+    CFStringGetMaximumSizeForEncoding(length, kCFStringEncodingUTF8);
+  scoped_array<UInt8> buffer(new UInt8[maxUTF8Length + 1]);
+  CFIndex actualUTF8Length;
+  CFStringGetBytes(str, CFRangeMake(0, length), kCFStringEncodingUTF8, 0,
+                   false, buffer.get(), maxUTF8Length, &actualUTF8Length);
+  buffer[actualUTF8Length] = 0;
+  result.assign((const char *)buffer.get());
+
+  return result;
+}
+
+unsigned int IntegerValueAtIndex(string &str, unsigned int idx) {
+  string digits("0123456789"), temp;
+  unsigned int start = 0;
+  unsigned int end;
+  unsigned int found = 0;
+  unsigned int result = 0;
+
+  for (; found <= idx; ++found) {
+    end = str.find_first_not_of(digits, start);
+
+    if (end == string::npos)
+      end = str.size();
+
+    temp = str.substr(start, end - start);
+    result = atoi(temp.c_str());
+    start = str.find_first_of(digits, end + 1);
+
+    if (start == string::npos)
+      break;
+  }
+
+  return result;
+}
+
+}  // namespace MacStringUtils
diff --git a/src/common/mac/string_utilities.h b/src/common/mac/string_utilities.h
new file mode 100644
index 00000000..6d89c834
--- /dev/null
+++ b/src/common/mac/string_utilities.h
@@ -0,0 +1,52 @@
+// Copyright (c) 2006, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// string_utilities.h: Utilities for strings for Mac platform
+
+#ifndef COMMON_MAC_STRING_UTILITIES_H__
+#define COMMON_MAC_STRING_UTILITIES_H__
+
+#include <CoreFoundation/CoreFoundation.h>
+
+#include <string>
+
+namespace MacStringUtils {
+
+using std::string;
+
+// Convert a CoreFoundation string into a std::string
+string ConvertToString(CFStringRef str);
+
+// Return the idx'th decimal integer in str, separated by non-decimal-digits
+// E.g., str = 10.4.8, idx = 1 -> 4
+unsigned int IntegerValueAtIndex(string &str, unsigned int idx);
+
+}  // namespace MacStringUtils
+
+#endif  // COMMON_MAC_STRING_UTILITIES_H__