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utf8_to_utf16: adapt libuv's fs__capture_path

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This commit is contained in:
Justin M. Keyes 2016-05-29 03:59:37 -04:00
parent 771d42e426
commit 6b33e9b103
1 changed files with 51 additions and 8 deletions
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59
src/nvim/os/fs.c
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@ -922,7 +922,7 @@ bool os_fileid_equal(const FileID *file_id_1, const FileID *file_id_2)
/// @param file_info Pointer to a `FileInfo`
/// @return `true` if the `FileID` and the `FileInfo` represent te same file.
bool os_fileid_equal_fileinfo(const FileID *file_id,
const FileInfo *file_info)
const FileInfo *file_info)
FUNC_ATTR_NONNULL_ALL
{
return file_id->inode == file_info->stat.st_ino
@ -931,6 +931,49 @@ bool os_fileid_equal_fileinfo(const FileID *file_id,
#ifdef WIN32
# include <shlobj.h>
#ifndef CP_UTF8
# define CP_UTF8 65001 /* magic number from winnls.h */
#endif
static int utf8_to_utf16(const char *path, const WCHAR **pathw)
FUNC_ATTR_NONNULL_ALL
{
ssize_t buf_sz = 0, path_len, pathw_len = 0;
// Compute the length needed to store the converted widechar string.
pathw_len = MultiByteToWideChar(CP_UTF8,
0, // dwFlags: must be 0 for utf8
path, // lpMultiByteStr: string to convert
-1,
NULL, // lpWideCharStr: converted string
0); // 0 => return length, don't convert
if (pathw_len == 0) {
return GetLastError();
}
buf_sz += pathw_len * sizeof(WCHAR);
if (buf_sz == 0) {
*pathw = NULL;
return 0;
}
char* buf = xmalloc(buf_sz);
char* pos = buf;
DWORD r = MultiByteToWideChar(CP_UTF8,
0,
path,
-1,
(WCHAR*) pos,
pathw_len);
assert(r == (DWORD) pathw_len);
*pathw = (WCHAR*) pos;
pos += r * sizeof(WCHAR);
return 0;
}
/// When "fname" is the name of a shortcut (*.lnk) resolve the file it points
/// to and return that name in allocated memory.
/// Otherwise NULL is returned.
@ -962,19 +1005,19 @@ char_u * os_resolve_shortcut(char_u *fname)
# ifdef FEAT_MBYTE
if (enc_codepage >= 0 && (int)GetACP() != enc_codepage) {
// create a link manager object and request its interface
hr = CoCreateInstance(
&CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
&IID_IShellLinkW, (void**)&pslw);
if (hr == S_OK)
{
WCHAR *p = enc_to_utf16(fname, NULL);
hr = CoCreateInstance(&CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
&IID_IShellLinkW, (void**)&pslw);
if (hr == S_OK) {
WCHAR **p;
int len = utf8_to_utf16((char *)fname, p);
if (p != NULL) {
// Get a pointer to the IPersistFile interface.
hr = pslw->lpVtbl->QueryInterface(
pslw, &IID_IPersistFile, (void**)&ppf);
if (hr != S_OK)
if (hr != S_OK) {
goto shortcut_errorw;
}
// "load" the name and resolve the link
hr = ppf->lpVtbl->Load(ppf, p, STGM_READ);