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Support SO/SI using DEC's Special Graphics Characters

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This commit is contained in:
Jason Hood 2011-02-26 17:14:21 +10:00
parent 6d7cd9212c
commit ad82e4e642
2 changed files with 80 additions and 11 deletions
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84
ANSI.c
View File

@ -63,8 +63,10 @@
ignore sequences starting with \e[? & \e[>;
close the handles opened by CreateProcess.
25 February, 2011:
hook GetProcAddress, addresses issues with .NET (work with PowerShell).
25 & 26 February, 2011:
hook GetProcAddress, addresses issues with .NET (work with PowerShell);
implement SO & SI to use the DEC Special Graphics Character Set (enables
line drawing via ASCII); ignore \e(X & \e)X (where X is any character).
*/
#include "ansicon.h"
@ -105,6 +107,8 @@ HANDLE hConOut; // handle to CONOUT$
#define ESC '\x1B' // ESCape character
#define BEL '\x07'
#define SO '\x0E' // Shift Out
#define SI '\x0F' // Shift In
#define MAX_ARG 16 // max number of args in an escape sequence
int state; // automata state
@ -115,6 +119,52 @@ int es_argc; // escape sequence args count
int es_argv[MAX_ARG]; // escape sequence args
TCHAR Pt_arg[MAX_PATH*2]; // text parameter for Operating System Command
int Pt_len;
BOOL shifted;
// DEC Special Graphics Character Set from
// http://vt100.net/docs/vt220-rm/table2-4.html
// Some of these may not look right, depending on the font and code page (in
// particular, the Control Pictures probably won't work at all).
const WCHAR G1[] =
{
' ', // _ - blank
L'\x2666', // ` - Black Diamond Suit
L'\x2592', // a - Medium Shade
L'\x2409', // b - HT
L'\x240c', // c - FF
L'\x240d', // d - CR
L'\x240a', // e - LF
L'\x00b0', // f - Degree Sign
L'\x00b1', // g - Plus-Minus Sign
L'\x2424', // h - NL
L'\x240b', // i - VT
L'\x2518', // j - Box Drawings Light Up And Left
L'\x2510', // k - Box Drawings Light Down And Left
L'\x250c', // l - Box Drawings Light Down And Right
L'\x2514', // m - Box Drawings Light Up And Right
L'\x253c', // n - Box Drawings Light Vertical And Horizontal
L'\x00af', // o - SCAN 1 - Macron
L'\x25ac', // p - SCAN 3 - Black Rectangle
L'\x2500', // q - SCAN 5 - Box Drawings Light Horizontal
L'_', // r - SCAN 7 - Low Line
L'_', // s - SCAN 9 - Low Line
L'\x251c', // t - Box Drawings Light Vertical And Right
L'\x2524', // u - Box Drawings Light Vertical And Left
L'\x2534', // v - Box Drawings Light Up And Horizontal
L'\x252c', // w - Box Drawings Light Down And Horizontal
L'\x2502', // x - Box Drawings Light Vertical
L'\x2264', // y - Less-Than Or Equal To
L'\x2265', // z - Greater-Than Or Equal To
L'\x03c0', // { - Greek Small Letter Pi
L'\x2260', // | - Not Equal To
L'\x00a3', // } - Pound Sign
L'\x00b7', // ~ - Middle Dot
};
#define FIRST_G1 '_'
#define LAST_G1 '~'
// color constants
@ -351,8 +401,10 @@ BOOL HookAPIAllMod( PHookFn Hooks, BOOL restore )
// ========== Print Buffer functions
#define BUFFER_SIZE (278+512) // fill out the section
int nCharInBuffer;
LPCTSTR ChBuffer;
WCHAR ChBuffer[BUFFER_SIZE];
//-----------------------------------------------------------------------------
// FlushBuffer()
@ -368,14 +420,17 @@ void FlushBuffer( void )
}
//-----------------------------------------------------------------------------
// PushBuffer( LPCTSTR s )
// Adds a character in the "buffer".
// PushBuffer( WCHAR c )
// Adds a character in the buffer.
//-----------------------------------------------------------------------------
void PushBuffer( LPCTSTR s )
void PushBuffer( WCHAR c )
{
if (nCharInBuffer++ == 0)
ChBuffer = s;
if (shifted && c >= FIRST_G1 && c <= LAST_G1)
c = G1[c-FIRST_G1];
ChBuffer[nCharInBuffer] = c;
if (++nCharInBuffer == BUFFER_SIZE)
FlushBuffer();
}
//-----------------------------------------------------------------------------
@ -803,18 +858,21 @@ ParseAndPrintString( HANDLE hDev,
{
hConOut = hDev;
state = 1;
shifted = FALSE;
}
for (i = nNumberOfBytesToWrite, s = (LPCTSTR)lpBuffer; i > 0; i--, s++)
{
if (state == 1)
{
if (*s == ESC) state = 2;
else PushBuffer( s );
else if (*s == SO) shifted = TRUE;
else if (*s == SI) shifted = FALSE;
else PushBuffer( *s );
}
else if (state == 2)
{
if (*s == ESC) ; // \e\e...\e == \e
else if ((*s == '[') || (*s == ']')) // || (*s == '('))
else if ((*s == '[') || (*s == ']'))
{
FlushBuffer();
prefix = *s;
@ -823,6 +881,7 @@ ParseAndPrintString( HANDLE hDev,
Pt_len = 0;
*Pt_arg = '\0';
}
else if (*s == ')' || *s == '(') state = 6;
else state = 1;
}
else if (state == 3)
@ -890,6 +949,11 @@ ParseAndPrintString( HANDLE hDev,
else if (Pt_len < lenof(Pt_arg)-1)
Pt_arg[Pt_len++] = *s;
}
else if (state == 6)
{
// Ignore it (ESC ) 0 is implicit; nothing else is supported).
state = 1;
}
}
FlushBuffer();
if (lpNumberOfBytesWritten != NULL)

5
debugstr.c
View File

@ -72,6 +72,8 @@ void DEBUGSTR( LPTSTR szFormat, ... ) // sort of OutputDebugStringf
}
#if (MYDEBUG > 1)
{
HANDLE mutex = CreateMutex( NULL, FALSE, L"ANSICON_debug_file" );
DWORD wait = WaitForSingleObject( mutex, 500 );
FILE* file = fopen( tempfile, "at" ); // _fmode might be binary
if (file != NULL)
{
@ -89,6 +91,9 @@ void DEBUGSTR( LPTSTR szFormat, ... ) // sort of OutputDebugStringf
fwprintf( file, L"%s: %s\n", prog, szFormat );
fclose( file );
}
if (wait == WAIT_OBJECT_0)
ReleaseMutex( mutex );
CloseHandle( mutex );
}
#else
OutputDebugString( szFormat );