Chris Lattner | 24943d2 | 2010-06-08 16:52:24 +0000 | [diff] [blame^] | 1 | //===-- CFCString.cpp -------------------------------------------*- C++ -*-===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #include "CFCString.h" |
| 11 | #include <string> |
| 12 | #include <glob.h> |
| 13 | |
| 14 | //---------------------------------------------------------------------- |
| 15 | // CFCString constructor |
| 16 | //---------------------------------------------------------------------- |
| 17 | CFCString::CFCString(CFStringRef s) : |
| 18 | CFCReleaser<CFStringRef> (s) |
| 19 | { |
| 20 | } |
| 21 | |
| 22 | //---------------------------------------------------------------------- |
| 23 | // CFCString copy constructor |
| 24 | //---------------------------------------------------------------------- |
| 25 | CFCString::CFCString(const CFCString& rhs) : |
| 26 | CFCReleaser<CFStringRef> (rhs) |
| 27 | { |
| 28 | |
| 29 | } |
| 30 | |
| 31 | //---------------------------------------------------------------------- |
| 32 | // CFCString copy constructor |
| 33 | //---------------------------------------------------------------------- |
| 34 | CFCString& |
| 35 | CFCString::operator=(const CFCString& rhs) |
| 36 | { |
| 37 | if (this != &rhs) |
| 38 | *this = rhs; |
| 39 | return *this; |
| 40 | } |
| 41 | |
| 42 | CFCString::CFCString (const char *cstr, CFStringEncoding cstr_encoding) : |
| 43 | CFCReleaser<CFStringRef> () |
| 44 | { |
| 45 | if (cstr && cstr[0]) |
| 46 | { |
| 47 | reset(::CFStringCreateWithCString(kCFAllocatorDefault, cstr, cstr_encoding)); |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | //---------------------------------------------------------------------- |
| 52 | // Destructor |
| 53 | //---------------------------------------------------------------------- |
| 54 | CFCString::~CFCString() |
| 55 | { |
| 56 | } |
| 57 | |
| 58 | const char * |
| 59 | CFCString::GetFileSystemRepresentation(std::string& s) |
| 60 | { |
| 61 | return CFCString::FileSystemRepresentation(get(), s); |
| 62 | } |
| 63 | |
| 64 | CFStringRef |
| 65 | CFCString::SetFileSystemRepresentation (const char *path) |
| 66 | { |
| 67 | CFStringRef new_value = NULL; |
| 68 | if (path && path[0]) |
| 69 | new_value = ::CFStringCreateWithFileSystemRepresentation (kCFAllocatorDefault, path); |
| 70 | reset(new_value); |
| 71 | return get(); |
| 72 | } |
| 73 | |
| 74 | |
| 75 | CFStringRef |
| 76 | CFCString::SetFileSystemRepresentationFromCFType (CFTypeRef cf_type) |
| 77 | { |
| 78 | CFStringRef new_value = NULL; |
| 79 | if (cf_type != NULL) |
| 80 | { |
| 81 | CFTypeID cf_type_id = ::CFGetTypeID(cf_type); |
| 82 | |
| 83 | if (cf_type_id == ::CFStringGetTypeID()) |
| 84 | { |
| 85 | // Retain since we are using the existing object |
| 86 | new_value = (CFStringRef)::CFRetain(cf_type); |
| 87 | } |
| 88 | else if (cf_type_id == ::CFURLGetTypeID()) |
| 89 | { |
| 90 | new_value = ::CFURLCopyFileSystemPath((CFURLRef)cf_type, kCFURLPOSIXPathStyle); |
| 91 | } |
| 92 | } |
| 93 | reset(new_value); |
| 94 | return get(); |
| 95 | } |
| 96 | |
| 97 | CFStringRef |
| 98 | CFCString::SetFileSystemRepresentationAndExpandTilde (const char *path) |
| 99 | { |
| 100 | std::string expanded_path; |
| 101 | if (CFCString::ExpandTildeInPath(path, expanded_path)) |
| 102 | SetFileSystemRepresentation(expanded_path.c_str()); |
| 103 | else |
| 104 | reset(); |
| 105 | return get(); |
| 106 | } |
| 107 | |
| 108 | const char * |
| 109 | CFCString::UTF8(std::string& str) |
| 110 | { |
| 111 | return CFCString::UTF8(get(), str); |
| 112 | } |
| 113 | |
| 114 | // Static function that puts a copy of the UTF8 contents of CF_STR into STR |
| 115 | // and returns the C string pointer that is contained in STR when successful, else |
| 116 | // NULL is returned. This allows the std::string parameter to own the extracted string, |
| 117 | // and also allows that string to be returned as a C string pointer that can be used. |
| 118 | |
| 119 | const char * |
| 120 | CFCString::UTF8 (CFStringRef cf_str, std::string& str) |
| 121 | { |
| 122 | if (cf_str) |
| 123 | { |
| 124 | const CFStringEncoding encoding = kCFStringEncodingUTF8; |
| 125 | CFIndex max_utf8_str_len = CFStringGetLength (cf_str); |
| 126 | max_utf8_str_len = CFStringGetMaximumSizeForEncoding (max_utf8_str_len, encoding); |
| 127 | if (max_utf8_str_len > 0) |
| 128 | { |
| 129 | str.resize(max_utf8_str_len); |
| 130 | if (!str.empty()) |
| 131 | { |
| 132 | if (CFStringGetCString (cf_str, &str[0], str.size(), encoding)) |
| 133 | { |
| 134 | str.resize(strlen(str.c_str())); |
| 135 | return str.c_str(); |
| 136 | } |
| 137 | } |
| 138 | } |
| 139 | } |
| 140 | return NULL; |
| 141 | } |
| 142 | |
| 143 | const char* |
| 144 | CFCString::ExpandTildeInPath(const char* path, std::string &expanded_path) |
| 145 | { |
| 146 | glob_t globbuf; |
| 147 | if (::glob (path, GLOB_TILDE, NULL, &globbuf) == 0) |
| 148 | { |
| 149 | expanded_path = globbuf.gl_pathv[0]; |
| 150 | ::globfree (&globbuf); |
| 151 | } |
| 152 | else |
| 153 | expanded_path.clear(); |
| 154 | |
| 155 | return expanded_path.c_str(); |
| 156 | } |
| 157 | |
| 158 | // Static function that puts a copy of the file system representation of CF_STR |
| 159 | // into STR and returns the C string pointer that is contained in STR when |
| 160 | // successful, else NULL is returned. This allows the std::string parameter |
| 161 | // to own the extracted string, and also allows that string to be returned as |
| 162 | // a C string pointer that can be used. |
| 163 | |
| 164 | const char * |
| 165 | CFCString::FileSystemRepresentation (CFStringRef cf_str, std::string& str) |
| 166 | { |
| 167 | if (cf_str) |
| 168 | { |
| 169 | CFIndex max_length = ::CFStringGetMaximumSizeOfFileSystemRepresentation (cf_str); |
| 170 | if (max_length > 0) |
| 171 | { |
| 172 | str.resize(max_length); |
| 173 | if (!str.empty()) |
| 174 | { |
| 175 | if (::CFStringGetFileSystemRepresentation (cf_str, &str[0], str.size())) |
| 176 | { |
| 177 | str.erase(::strlen(str.c_str())); |
| 178 | return str.c_str(); |
| 179 | } |
| 180 | } |
| 181 | } |
| 182 | } |
| 183 | str.erase(); |
| 184 | return NULL; |
| 185 | } |
| 186 | |
| 187 | |
| 188 | CFIndex |
| 189 | CFCString::GetLength() const |
| 190 | { |
| 191 | CFStringRef str = get(); |
| 192 | if (str) |
| 193 | return CFStringGetLength (str); |
| 194 | return 0; |
| 195 | } |