CHAR IncomingUtf8ConversionBuffer[4];
WCHAR IncomingUnicodeValue;
-/* FUNCTIONS *****************************************************************/
-
-//
-// Source: http://en.wikipedia.org/wiki/ANSI_escape_code
-//
-typedef enum _VT_ANSI_ATTRIBUTES
-{
- //
- // Attribute modifiers (mostly supported)
- //
- Normal,
- Bold,
- Faint,
- Italic,
- Underline,
- SlowBlink,
- FastBlink,
- Inverse,
- Conceal,
- Strikethrough,
-
- //
- // Font selectors (not supported)
- //
- PrimaryFont,
- AlternateFont1,
- AlternateFont2,
- AlternateFont3,
- Alternatefont4,
- AlteronateFont5,
- AlteronateFont6,
- AlternateFont7,
- AlternatEfont8,
- Alternatefont9,
-
- //
- // Additional attributes (not supported)
- //
- Fraktur,
- DoubleUnderline,
-
- //
- // Attribute Un-modifiers (mostly supported)
- //
- BoldOff,
- ItalicOff,
- UnderlineOff,
- BlinkOff,
- Reserved,
- InverseOff,
- ConcealOff,
- StrikethroughOff,
-
- //
- // Standard Text Color
- //
- SetColorStart,
- SetColorBlack = SetColorStart,
- SetColorRed,
- SetColorGreen,
- SetColorYellow,
- SetColorBlue,
- SetcolorMAgent,
- SetColorCyan,
- SetColorWhite,
- SetColorMax = SetColorWhite,
-
- //
- // Extended Text Color (not supported)
- //
- SetColor256,
- SeTextColorDefault,
-
- //
- // Standard Background Color
- //
- SetBackColorStart,
- SetBackColorBlack = SetBackColorStart,
- SetBackColorRed,
- SetBackColorGreen,
- SetBackColorYellow,
- SetBackColorBlue,
- SetBackcolorMAgent,
- SetBackColorCyan,
- SetBackColorWhite,
- SetBackColorMax = SetBackColorWhite,
-
- //
- // Extended Background Color (not supported)
- //
- SetBackColor256,
- SetBackColorDefault,
-
- //
- // Extra Attributes (not supported)
- //
- Reserved1,
- Framed,
- Encircled,
- Overlined,
- FramedOff,
- OverlinedOff,
- Reserved2,
- Reserved3,
- Reserved4,
- Reserved5
-
- //
- // Ideograms (not supported)
- //
-} VT_ANSI_ATTRIBUTES;
-
-//
-// The following site is a good reference on VT100/ANSI escape codes
-// http://www.termsys.demon.co.uk/vtansi.htm
-//
-#define VT_ANSI_ESCAPE L'\x1B'
-#define VT_ANSI_COMMAND L'['
-
-#define VT_ANSI_CURSOR_UP_CHAR L'A'
-#define VT_ANSI_CURSOR_UP L"[A"
-
-#define VT_ANSI_CURSOR_DOWN_CHAR L'B'
-#define VT_ANSI_CURSOR_DOWN L"[B"
-
-#define VT_ANSI_CURSOR_RIGHT_CHAR L'C'
-#define VT_ANSI_CURSOR_RIGHT L"[C"
-
-#define VT_ANSI_CURSOR_LEFT_CHAR L'D'
-#define VT_ANSI_CURSOR_LEFT L"[D"
-
-#define VT_ANSI_ERASE_LINE_CHAR L'K'
-#define VT_ANSI_ERASE_END_LINE L"[K"
-#define VT_ANSI_ERASE_START_LINE L"[1K"
-#define VT_ANSI_ERASE_ENTIRE_LINE L"[2K"
-
-#define VT_ANSI_ERASE_SCREEN_CHAR L'J'
-#define VT_ANSI_ERASE_DOWN_SCREEN L"[J"
-#define VT_ANSI_ERASE_UP_SCREEN L"[1J"
-#define VT_ANSI_ERASE_ENTIRE_SCREEN L"[2J"
-
-#define VT_ANSI_BACKTAB_CHAR L'Z'
-#define VT_220_BACKTAB L"[0Z"
-
-#define VT_ANSI_SET_ATTRIBUTE_CHAR L'm'
-#define VT_ANSI_SEPARATOR_CHAR L';'
-#define VT_ANSI_HVP_CURSOR_CHAR L'f'
-#define VT_ANSI_CUP_CURSOR_CHAR L'H'
-#define VT_ANSI_SCROLL_CHAR L'r'
-
SAC_STATIC_ESCAPE_STRING SacStaticEscapeStrings [] =
{
{ VT_ANSI_CURSOR_UP, 2, SacCursorUp },
{ VT_ANSI_ERASE_ENTIRE_SCREEN, 3, SacEraseScreen },
};
+/* FUNCTIONS *****************************************************************/
+
+FORCEINLINE
+VOID
+VTUTF8ChannelAssertCursor(IN PSAC_CHANNEL Channel)
+{
+ ASSERT(Channel->CursorRow < SAC_VTUTF8_ROW_HEIGHT);
+ ASSERT(Channel->CursorCol < SAC_VTUTF8_COL_WIDTH);
+}
+
BOOLEAN
NTAPI
VTUTF8ChannelScanForNumber(IN PWCHAR String,
return STATUS_NOT_IMPLEMENTED;
}
-FORCEINLINE
-VOID
-VTUTF8ChannelAssertCursor(IN PSAC_CHANNEL Channel)
-{
- ASSERT(Channel->CursorRow < SAC_VTUTF8_ROW_HEIGHT);
- ASSERT(Channel->CursorCol < SAC_VTUTF8_COL_WIDTH);
-}
-
//
-// Not a
+// This function is the guts of the sequences that SAC supports.
+//
+// It is written to conform to the way that Microsoft's SAC driver interprets
+// the ANSI standard. If you want to extend and/or "fix" it, please use a flag
+// that can be set in the Registry to enable "extended" ANSI support or etc...
+//
+// Hermes, I'm looking at you, buddy.
//
ULONG
NTAPI
PSAC_CURSOR_DATA Cursor;
ASSERT(String[0] == VT_ANSI_ESCAPE);
+ /* Microsoft's driver does this after the O(n) check below. Be smarter. */
+ if (String[1] != VT_ANSI_COMMAND) return 0;
+
+ /* Now that we know it's a valid command, look through the common cases */
for (i = 0; i < RTL_NUMBER_OF(SacStaticEscapeStrings); i++)
{
+ /* Check if an optimized sequence was detected */
if (!wcsncmp(String + 1,
SacStaticEscapeStrings[i].Sequence,
SacStaticEscapeStrings[i].Size))
{
+ /* Yep, return the right action, length, and set optionals to 1 */
Action = SacStaticEscapeStrings[i].Action;
Result = SacStaticEscapeStrings[i].Size + 1;
Number = Number2 = Number3 = 1;
}
}
- if (String[1] != VT_ANSI_COMMAND) return 0;
-
+ /* It's a more complex sequence, start parsing it */
Result = 0;
Sequence = String + 2;
+
+ /* First, check for the cursor sequences. This is useless due to above. */
switch (*Sequence)
{
case VT_ANSI_CURSOR_UP_CHAR:
break;
}
+ /* This must be a sequence starting with ESC[# */
if (!VTUTF8ChannelScanForNumber(Sequence, &Number)) return 0;
while ((*Sequence >= L'0') && (*Sequence <= L'9')) Sequence++;
+ /* Check if this is ESC[#m */
if (*Sequence == VT_ANSI_SET_ATTRIBUTE_CHAR)
{
+ /* Some attribute is being set, go over the ones we support */
switch (Number)
{
+ /* Make the font standard */
case Normal:
Action = SacFontNormal;
break;
+ /* Make the font bold */
case Bold:
Action = SacFontBold;
break;
+ /* Make the font blink */
case SlowBlink:
Action = SacFontBlink;
break;
+ /* Make the font colors inverted */
case Inverse:
Action = SacFontInverse;
break;
+ /* Make the font standard intensity */
case BoldOff:
Action = SacFontBoldOff;
break;
+ /* Turn off blinking */
case BlinkOff:
Action = SacFontBlinkOff;
break;
+ /* Turn off inverted colors */
case InverseOff:
Action = SacFontInverseOff;
break;
+ /* Something else... */
default:
+
+ /* Is a background color being set? */
if ((Number < SetBackColorStart) || (Number > SetBackColorMax))
{
+ /* Nope... is it the foreground color? */
if ((Number < SetColorStart) || (Number > SetColorMax))
{
+ /* Nope. SAC expects no other attributes so bail out */
ASSERT(FALSE);
return 0;
}
+ /* Yep -- the number will tell us which */
Action = SacSetFontColor;
}
else
{
+ /* Yep -- the number will tell us which */
Action = SacSetBackgroundColor;
}
break;
}
+ /* In all cases, we're done here */
goto ProcessString;
}
+ /* The only allowed possibility now is ESC[#;# */
if (*Sequence != VT_ANSI_SEPARATOR_CHAR) return 0;
-
Sequence++;
if (!VTUTF8ChannelScanForNumber(Sequence, &Number2)) return 0;
while ((*Sequence >= L'0') && (*Sequence <= L'9')) Sequence++;
- if (*Sequence == VT_ANSI_SET_ATTRIBUTE_CHAR)
- {
- Action = 20;
- goto ProcessString;
- }
-
- if (*Sequence == VT_ANSI_CUP_CURSOR_CHAR)
+ /* There's two valid forms accepted at this point: ESC[#;#m and ESC[#;#H */
+ switch (*Sequence)
{
- Action = SacSetCursorPosition;
- goto ProcessString;
- }
+ /* This is ESC[#;#m -- used to set both colors at once */
+ case VT_ANSI_SET_ATTRIBUTE_CHAR:
+ Action = SacSetColors;
+ goto ProcessString;
- if (*Sequence != VT_ANSI_SEPARATOR_CHAR) return 0;
+ /* This is ESC[#;#H -- used to set the cursor position */
+ case VT_ANSI_CUP_CURSOR_CHAR:
+ Action = SacSetCursorPosition;
+ goto ProcessString;
- Sequence++;
+ /* Finally, this *could* be ESC[#;#; -- we'll keep parsing */
+ case VT_ANSI_SEPARATOR_CHAR:
+ Sequence++;
+ break;
- if ((*Sequence == VT_ANSI_CUP_CURSOR_CHAR) ||
- (*Sequence == VT_ANSI_HVP_CURSOR_CHAR))
- {
- Action = SacSetCursorPosition;
- goto ProcessString;
+ /* Abandon anything else */
+ default:
+ return 0;
}
- if (*Sequence == VT_ANSI_SCROLL_CHAR)
+ /* The SAC seems to accept a few more possibilities if a ';' follows... */
+ switch (*Sequence)
{
- Action = SacSetScrollRegion;
- goto ProcessString;
+ /* Both ESC[#;#;H and ESC[#;#;f are really the same command */
+ case VT_ANSI_CUP_CURSOR_CHAR:
+ case VT_ANSI_HVP_CURSOR_CHAR:
+ /* It's unclear why MS doesn't allow the HVP sequence on its own */
+ Action = SacSetCursorPosition;
+ goto ProcessString;
+
+ /* And this is the ESC[#;#;r command to set the scroll region... */
+ case VT_ANSI_SCROLL_CHAR:
+ /* Again, not clear why ESC[#;#r isn't supported */
+ Action = SacSetScrollRegion;
+ goto ProcessString;
+
+ /* Anything else must be ESC[#;#;# */
+ default:
+ break;
}
+ /* Get the last "#" */
if (!VTUTF8ChannelScanForNumber(Sequence, &Number3)) return 0;
while ((*Sequence >= L'0') && (*Sequence <= L'9')) Sequence++;
+ /* And now the only remaining possibility is ESC[#;#;#;m */
if (*Sequence == VT_ANSI_SET_ATTRIBUTE_CHAR)
{
- Action = 23;
+ /* Which sets both color and attributes in one command */
+ Action = SacSetColorsAndAttributes;
goto ProcessString;
}
+ /* No other sequences supported */
return 0;
ProcessString:
+ /* Unless we got here from the optimized path, calculate the length */
if (!Result) Result = Sequence - String + 1;
+ /* Get the current cell buffer */
Cursor = (PSAC_CURSOR_DATA)Channel->OBuffer;
VTUTF8ChannelAssertCursor(Channel);
+
+ /* Handle all the supported SAC ANSI commands */
switch (Action)
{
case SacCursorUp:
break;
case SacEraseEndOfScreen:
+ ASSERT(FALSE); // todo
break;
case SacEraseStartOfScreen:
+ ASSERT(FALSE); // todo
break;
case SacEraseScreen:
+ ASSERT(FALSE); // todo
break;
case SacSetCursorPosition:
+ ASSERT(FALSE); // todo
break;
case SacSetScrollRegion:
+ ASSERT(FALSE); // todo
break;
- case 20:
+ case SacSetColors:
Channel->CursorColor = Number;
Channel->CursorBackColor = Number2;
break;
Channel->CursorColor = Number;
break;
- case 23:
+ case SacSetColorsAndAttributes:
Channel->CursorFlags = Number;
Channel->CursorColor = Number2;
Channel->CursorBackColor = Number3;
break;
}
+ /* Return the length of the sequence */
return Result;
}
projects / reactos.git / blobdiff