using namespace std;
namespace lyx {
+
+void lyx_exit(int);
+
namespace support {
namespace os {
string cygdrive = "/cygdrive";
+BOOL terminate_handler(DWORD event)
+{
+ if (event == CTRL_CLOSE_EVENT
+ || event == CTRL_LOGOFF_EVENT
+ || event == CTRL_SHUTDOWN_EVENT) {
+ lyx::lyx_exit(1);
+ return TRUE;
+ }
+ return FALSE;
+}
+
} // namespace anon
void init(int /* argc */, char * argv[])
* lyx is invoked as a parameter of hidecmd.exe.
*/
- // If cygwin is detected, query the cygdrive prefix
- HKEY regKey;
+ // If Cygwin is detected, query the cygdrive prefix.
+ // The cygdrive prefix is needed for translating windows style paths
+ // to posix style paths in LaTeX files when the Cygwin teTeX is used.
+ int i;
+ HKEY hkey;
char buf[MAX_PATH];
- DWORD bufSize = sizeof(buf);
- LONG retVal;
-
- retVal = RegOpenKeyEx(HKEY_LOCAL_MACHINE,
- "Software\\Cygnus Solutions\\Cygwin\\mounts v2",
- 0, KEY_QUERY_VALUE, ®Key);
- if (retVal != ERROR_SUCCESS) {
- retVal = RegOpenKeyEx(HKEY_CURRENT_USER,
- "Software\\Cygnus Solutions\\Cygwin\\mounts v2",
- 0, KEY_QUERY_VALUE, ®Key);
+ DWORD bufsize = sizeof(buf);
+ LONG retval = ERROR_FILE_NOT_FOUND;
+ HKEY const mainkey[2] = { HKEY_LOCAL_MACHINE, HKEY_CURRENT_USER };
+ char const * const subkey[2] = {
+ "Software\\Cygwin\\setup", // Cygwin 1.7
+ "Software\\Cygnus Solutions\\Cygwin\\mounts v2\\/" // Prev. ver.
+ };
+ char const * const valuename[2] = {
+ "rootdir", // Cygwin 1.7 or later
+ "native" // Previous versions
+ };
+ // Check for newer Cygwin versions first, then older ones
+ for (i = 0; i < 2 && retval != ERROR_SUCCESS; ++i) {
+ for (int k = 0; k < 2 && retval != ERROR_SUCCESS; ++k)
+ retval = RegOpenKey(mainkey[k], subkey[i], &hkey);
}
- if (retVal == ERROR_SUCCESS) {
- retVal = RegQueryValueEx(regKey, "cygdrive prefix", NULL, NULL,
- (LPBYTE) buf, &bufSize);
- RegCloseKey(regKey);
- if ((retVal == ERROR_SUCCESS) && (bufSize <= MAX_PATH))
- cygdrive = rtrim(string(buf), "/");
+ if (retval == ERROR_SUCCESS) {
+ // Query the Cygwin root directory
+ retval = RegQueryValueEx(hkey, valuename[i - 1],
+ NULL, NULL, (LPBYTE) buf, &bufsize);
+ RegCloseKey(hkey);
+ string const mount = string(buf) + "\\bin\\mount.exe";
+ if (retval == ERROR_SUCCESS && FileName(mount).exists()) {
+ cmd_ret const p =
+ runCommand(mount + " --show-cygdrive-prefix");
+ // The output of the mount command is as follows:
+ // Prefix Type Flags
+ // /cygdrive system binmode
+ // So, we use the inner split to pass the second line
+ // to the outer split which sets cygdrive with its
+ // contents until the first blank, discarding the
+ // unneeded return value.
+ if (p.first != -1 && prefixIs(p.second, "Prefix"))
+ split(split(p.second, '\n'), cygdrive, ' ');
+ }
}
+
+ // Catch shutdown events.
+ SetConsoleCtrlHandler((PHANDLER_ROUTINE)terminate_handler, TRUE);
}
}
+bool path_prefix_is(string const & path, string const & pre)
+{
+ return path_prefix_is(const_cast<string &>(path), pre, CASE_UNCHANGED);
+}
+
+
+bool path_prefix_is(string & path, string const & pre, path_case how)
+{
+ docstring const p1 = from_utf8(path);
+ docstring const p2 = from_utf8(pre);
+ docstring::size_type const p1_len = p1.length();
+ docstring::size_type const p2_len = p2.length();
+ docstring::size_type common_len = common_path(p1, p2);
+
+ if (p2[p2_len - 1] == '/' && p1_len != p2_len)
+ ++common_len;
+
+ if (common_len != p2_len)
+ return false;
+
+ if (how == CASE_ADJUSTED && !prefixIs(path, pre)) {
+ if (p1_len < common_len)
+ path = to_utf8(p2.substr(0, p1_len));
+ else
+ path = to_utf8(p2 + p1.substr(common_len,
+ p1_len - common_len));
+ }
+
+ return true;
+}
+
+
string external_path(string const & p)
{
string const dos_path = subst(p, "/", "\\");
// on windows_style_tex_paths_), but we use always forward slashes,
// since it gets written into a .tex file.
- FileName path(p);
- if (!windows_style_tex_paths_ && path.isAbsolute()) {
+ if (!windows_style_tex_paths_ && FileName::isAbsolute(p)) {
string const drive = p.substr(0, 2);
string const cygprefix = cygdrive + "/" + drive.substr(0, 1);
string const cygpath = subst(subst(p, '\\', '/'), drive, cygprefix);
}
+bool is_terminal(io_channel channel)
+{
+ switch (channel) {
+ case STDIN:
+ if (GetStdHandle(STD_INPUT_HANDLE) == NULL)
+ return false;
+ break;
+ case STDOUT:
+ if (GetStdHandle(STD_OUTPUT_HANDLE) == NULL)
+ return false;
+ break;
+ case STDERR:
+ if (GetStdHandle(STD_ERROR_HANDLE) == NULL)
+ return false;
+ break;
+ }
+ return true;
+}
+
+
shell_type shell()
{
return CMD_EXE;
}
-bool isSameFile(string const & fileone, string const & filetwo)
+string real_path(string const & path)
{
- HANDLE h1 = CreateFile(fileone.c_str(), 0,
- FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
- HANDLE h2 = CreateFile(filetwo.c_str(), 0,
- FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
-
- if (h1 == INVALID_HANDLE_VALUE || h2 == INVALID_HANDLE_VALUE) {
- // One or both files cannot be accessed.
- if (h1 != INVALID_HANDLE_VALUE)
- CloseHandle(h1);
- if (h2 != INVALID_HANDLE_VALUE)
- CloseHandle(h2);
- return false;
+ // See http://msdn.microsoft.com/en-us/library/aa366789(VS.85).aspx
+ HANDLE hpath = CreateFile(subst(path, '/', '\\').c_str(), GENERIC_READ,
+ FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
+
+ if (hpath == INVALID_HANDLE_VALUE) {
+ // The file cannot be accessed.
+ return FileName::fromFilesystemEncoding(path).absFilename();
+ }
+
+ // Get the file size.
+ DWORD size_hi = 0;
+ DWORD size_lo = GetFileSize(hpath, &size_hi);
+
+ if (size_lo == 0 && size_hi == 0) {
+ // A zero-length file cannot be mapped.
+ CloseHandle(hpath);
+ return FileName::fromFilesystemEncoding(path).absFilename();
+ }
+
+ // Create a file mapping object.
+ HANDLE hmap = CreateFileMapping(hpath, NULL, PAGE_READONLY, 0, 1, NULL);
+
+ if (!hmap) {
+ CloseHandle(hpath);
+ return FileName::fromFilesystemEncoding(path).absFilename();
+ }
+
+ // Create a file mapping to get the file name.
+ void * pmem = MapViewOfFile(hmap, FILE_MAP_READ, 0, 0, 1);
+
+ if (!pmem) {
+ CloseHandle(hmap);
+ CloseHandle(hpath);
+ return FileName::fromFilesystemEncoding(path).absFilename();
+ }
+
+ TCHAR realpath[MAX_PATH + 1];
+
+ if (!GetMappedFileName(GetCurrentProcess(), pmem, realpath, MAX_PATH)) {
+ UnmapViewOfFile(pmem);
+ CloseHandle(hmap);
+ CloseHandle(hpath);
+ return FileName::fromFilesystemEncoding(path).absFilename();
}
- BY_HANDLE_FILE_INFORMATION info1;
- BY_HANDLE_FILE_INFORMATION info2;
- bool samefile = false;
- if (GetFileInformationByHandle(h1, &info1) != 0
- && GetFileInformationByHandle(h2, &info2) != 0) {
- // Serial number of the volumes containing the files.
- ULONG st1_dev = info1.dwVolumeSerialNumber;
- ULONG st2_dev = info2.dwVolumeSerialNumber;
- // Unique identifiers associated to the files on the volumes.
- ULONGLONG highbits = info1.nFileIndexHigh & 0x0000FFFF;
- ULONGLONG st1_ino = (highbits << sizeof(ULONG)) | info1.nFileIndexLow;
- highbits = info2.nFileIndexHigh & 0x0000FFFF;
- ULONGLONG st2_ino = (highbits << sizeof(ULONG)) | info2.nFileIndexLow;
- samefile = st1_ino == st2_ino && st1_dev == st2_dev;
+ // Translate device name to UNC prefix or drive letters.
+ TCHAR tmpbuf[MAX_PATH] = TEXT("\\Device\\Mup\\");
+ UINT namelen = _tcslen(tmpbuf);
+ if (_tcsnicmp(realpath, tmpbuf, namelen) == 0) {
+ // UNC path
+ _snprintf(tmpbuf, MAX_PATH, "\\\\%s", realpath + namelen);
+ strncpy(realpath, tmpbuf, MAX_PATH);
+ realpath[MAX_PATH] = '\0';
+ } else if (GetLogicalDriveStrings(MAX_PATH - 1, tmpbuf)) {
+ // Check whether device name corresponds to some local drive.
+ TCHAR name[MAX_PATH];
+ TCHAR drive[3] = TEXT(" :");
+ bool found = false;
+ TCHAR * p = tmpbuf;
+ do {
+ // Copy the drive letter to the template string
+ drive[0] = *p;
+ // Look up each device name
+ if (QueryDosDevice(drive, name, MAX_PATH)) {
+ namelen = _tcslen(name);
+ if (namelen < MAX_PATH) {
+ found = _tcsnicmp(realpath, name, namelen) == 0;
+ if (found) {
+ // Repl. device spec with drive
+ TCHAR tempfile[MAX_PATH];
+ _snprintf(tempfile,
+ MAX_PATH,
+ "%s%s",
+ drive,
+ realpath + namelen);
+ strncpy(realpath,
+ tempfile,
+ MAX_PATH);
+ realpath[MAX_PATH] = '\0';
+ }
+ }
+ }
+ // Advance p to the next NULL character.
+ while (*p++) ;
+ } while (!found && *p);
}
- CloseHandle(h1);
- CloseHandle(h2);
- return samefile;
+ UnmapViewOfFile(pmem);
+ CloseHandle(hmap);
+ CloseHandle(hpath);
+ string const retpath = subst(string(realpath), '\\', '/');
+ return FileName::fromFilesystemEncoding(retpath).absFilename();
}
} // namespace os