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utf16_to_utf8

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This commit is contained in:
Justin M. Keyes
2016-05-29 06:09:49 -04:00
parent d96b359410
commit 23aadb6948
1 changed files with 39 additions and 3 deletions
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42
src/nvim/os/fs.c
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@@ -973,6 +973,41 @@ static int utf8_to_utf16(const char *str, WCHAR **strw)
return 0;
}
static int utf16_to_utf8(const WCHAR *strw, char **str)
FUNC_ATTR_NONNULL_ALL
{
// Compute the space required to store the string as UTF-8.
ssize_t utf8_len = WideCharToMultiByte(CP_UTF8,
0,
strw,
-1,
NULL,
0,
NULL,
NULL);
if (utf8_len == 0) {
return GetLastError();
}
ssize_t buf_sz = utf8_len * sizeof(char);
char* buf = xmalloc(buf_sz);
char* pos = buf;
// Convert string to UTF-8.
int r = WideCharToMultiByte(CP_UTF8,
0,
strw,
-1,
(LPSTR*) pos,
utf8_len,
NULL,
NULL);
assert(r == utf8_len);
*str = pos;
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.
@@ -1002,9 +1037,9 @@ char_u * os_resolve_shortcut(char_u *fname)
hr = CoCreateInstance(&CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
&IID_IShellLinkW, (void**)&pslw);
if (hr == S_OK) {
WCHAR **p;
WCHAR *p;
//TODO(jkeyes): if this returns non-zero, report the error
(void)utf8_to_utf16((char *)fname, p);
(void)utf8_to_utf16((char *)fname, &p);
if (p != NULL) {
// Get a pointer to the IPersistFile interface.
@@ -1031,7 +1066,8 @@ char_u * os_resolve_shortcut(char_u *fname)
ZeroMemory(wsz, MAX_PATH * sizeof(WCHAR));
hr = pslw->lpVtbl->GetPath(pslw, wsz, MAX_PATH, &ffdw, 0);
if (hr == S_OK && wsz[0] != NUL) {
rfname = utf16_to_enc(wsz, NULL);
//TODO(jkeyes): if this returns non-zero, report the error
(void)utf16_to_utf8(wsz, &rfname);
}
shortcut_errorw: