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cmd: Properly handle multibyte characters in batch files.

This commit is contained in:
Akihiro Sagawa 2012-10-20 01:02:24 +09:00 committed by Alexandre Julliard
parent ed9e745580
commit 8daef1649b
1 changed files with 39 additions and 17 deletions
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34
programs/cmd/batch.c
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@ -234,18 +234,45 @@ WCHAR *WCMD_fgets(WCHAR *buf, DWORD noChars, HANDLE h)
{
DWORD charsRead;
BOOL status;
LARGE_INTEGER filepos;
DWORD i;
/* We can't use the native f* functions because of the filename syntax differences
between DOS and Unix. Also need to lose the LF (or CRLF) from the line. */
if (!WCMD_is_console_handle(h)) {
LARGE_INTEGER filepos;
char *bufA;
UINT cp;
const char *p;
cp = GetConsoleCP();
bufA = HeapAlloc(GetProcessHeap(), 0, noChars);
if (!bufA) return NULL;
/* Save current file position */
filepos.QuadPart = 0;
SetFilePointerEx(h, filepos, &filepos, FILE_CURRENT);
status = ReadFile(h, bufA, noChars, &charsRead, NULL);
if (!status || charsRead == 0) {
HeapFree(GetProcessHeap(), 0, bufA);
return NULL;
}
/* Find first EOL */
for (p = bufA; p < (bufA + charsRead); p = CharNextExA(cp, p, 0)) {
if (*p == '\n' || *p == '\r')
break;
}
/* Sets file pointer to the start of the next line, if any */
filepos.QuadPart += p - bufA + 1 + (*p == '\r' ? 1 : 0);
SetFilePointerEx(h, filepos, NULL, FILE_BEGIN);
i = MultiByteToWideChar(cp, 0, bufA, p - bufA, buf, noChars);
HeapFree(GetProcessHeap(), 0, bufA);
}
else {
status = WCMD_ReadFile(h, buf, noChars, &charsRead);
if (!status || charsRead == 0) return NULL;
@ -254,11 +281,6 @@ WCHAR *WCMD_fgets(WCHAR *buf, DWORD noChars, HANDLE h)
if (buf[i] == '\n' || buf[i] == '\r')
break;
}
if (!WCMD_is_console_handle(h) && i != charsRead) {
/* Sets file pointer to the start of the next line, if any */
filepos.QuadPart += i + 1 + (buf[i] == '\r' ? 1 : 0);
SetFilePointerEx(h, filepos, NULL, FILE_BEGIN);
}
/* Truncate at EOL (or end of buffer) */