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Fix parameters

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Explicit zero parameters should still default to one.  Limit parameters
to a maximum value of 32767.
This commit is contained in:
Jason Hood 2017-12-09 22:16:47 +10:00
parent c11447fc8b
commit 645f57e59c
2 changed files with 53 additions and 67 deletions
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118
ANSI.c
View File

@ -167,7 +167,9 @@
added palette sequences;
change the scan lines in the graphics set to their actual Unicode chars;
added IND, NEL & RI (using buffer, in keeping with LF);
added DA, DECCOLM, DECNCSM, DECSC & DECRC.
added DA, DECCOLM, DECNCSM, DECSC & DECRC;
an explicit zero parameter should still default to one;
restrict parameters to a maximum value of 32767.
*/
#include "ansicon.h"
@ -721,6 +723,7 @@ void send_palette_sequence( COLORREF c )
void InterpretEscSeq( void )
{
int i;
int p1, p2;
WORD attribut;
CONSOLE_SCREEN_BUFFER_INFO Info;
CONSOLE_CURSOR_INFO CursInfo;
@ -827,6 +830,10 @@ void InterpretEscSeq( void )
if (prefix2 != 0)
return;
// Even an explicit parameter of 0 should be defaulted to 1.
p1 = (es_argv[0] == 0) ? 1 : es_argv[0];
p2 = (es_argv[1] == 0) ? 1 : es_argv[1];
GetConsoleScreenBufferInfo( hConOut, &Info );
if (suffix2 == '+')
{
@ -841,7 +848,7 @@ void InterpretEscSeq( void )
switch (suffix)
{
case 'm':
if (es_argc == 0) es_argv[es_argc++] = 0;
if (es_argc == 0) es_argc++; // ESC[m == ESC[0m
for (i = 0; i < es_argc; i++)
{
if (30 <= es_argv[i] && es_argv[i] <= 37)
@ -955,8 +962,7 @@ void InterpretEscSeq( void )
return;
case 'J':
if (es_argc == 0) es_argv[es_argc++] = 0; // ESC[J == ESC[0J
if (es_argc != 1) return;
if (es_argc > 1) return; // ESC[J == ESC[0J
switch (es_argv[0])
{
case 0: // ESC[0J erase from cursor to end of display
@ -1014,8 +1020,7 @@ void InterpretEscSeq( void )
}
case 'K':
if (es_argc == 0) es_argv[es_argc++] = 0; // ESC[K == ESC[0K
if (es_argc != 1) return;
if (es_argc > 1) return; // ESC[K == ESC[0K
switch (es_argv[0])
{
case 0: // ESC[0K Clear to end of line
@ -1040,20 +1045,18 @@ void InterpretEscSeq( void )
}
case 'X': // ESC[#X Erase # characters.
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[X == ESC[1X
if (es_argc != 1) return;
FillBlank( es_argv[0], CUR );
if (es_argc > 1) return; // ESC[X == ESC[1X
FillBlank( p1, CUR );
return;
case 'L': // ESC[#L Insert # blank lines.
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[L == ESC[1L
if (es_argc != 1) return;
if (es_argc > 1) return; // ESC[L == ESC[1L
Rect.Left = WIN.Left = LEFT;
Rect.Right = WIN.Right = RIGHT;
Rect.Top = CUR.Y;
Rect.Bottom = bottom;
Pos.X = LEFT;
Pos.Y = CUR.Y + es_argv[0];
Pos.Y = CUR.Y + p1;
CharInfo.Char.UnicodeChar = ' ';
CharInfo.Attributes = Info.wAttributes;
ScrollConsoleScreenBuffer( hConOut, &Rect, &WIN, Pos, &CharInfo );
@ -1061,12 +1064,11 @@ void InterpretEscSeq( void )
return;
case 'M': // ESC[#M Delete # lines.
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[M == ESC[1M
if (es_argc != 1) return;
if (es_argc > 1) return; // ESC[M == ESC[1M
Rect.Left = WIN.Left = LEFT;
Rect.Right = WIN.Right = RIGHT;
Rect.Bottom = bottom;
Rect.Top = CUR.Y - es_argv[0];
Rect.Top = CUR.Y - p1;
Pos.X = LEFT;
Pos.Y = TOP = CUR.Y;
CharInfo.Char.UnicodeChar = ' ';
@ -1076,11 +1078,10 @@ void InterpretEscSeq( void )
return;
case 'P': // ESC[#P Delete # characters.
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[P == ESC[1P
if (es_argc != 1) return;
if (es_argc > 1) return; // ESC[P == ESC[1P
Rect.Left = WIN.Left = CUR.X;
Rect.Right = WIN.Right = RIGHT;
Pos.X = CUR.X - es_argv[0];
Pos.X = CUR.X - p1;
Pos.Y =
Rect.Top =
Rect.Bottom = CUR.Y;
@ -1090,11 +1091,10 @@ void InterpretEscSeq( void )
return;
case '@': // ESC[#@ Insert # blank characters.
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[@ == ESC[1@
if (es_argc != 1) return;
if (es_argc > 1) return; // ESC[@ == ESC[1@
Rect.Left = WIN.Left = CUR.X;
Rect.Right = WIN.Right = RIGHT;
Pos.X = CUR.X + es_argv[0];
Pos.X = CUR.X + p1;
Pos.Y =
Rect.Top =
Rect.Bottom = CUR.Y;
@ -1105,9 +1105,8 @@ void InterpretEscSeq( void )
case 'k': // ESC[#k
case 'A': // ESC[#A Moves cursor up # lines
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[A == ESC[1A
if (es_argc != 1) return;
Pos.Y = CUR.Y - es_argv[0];
if (es_argc > 1) return; // ESC[A == ESC[1A
Pos.Y = CUR.Y - p1;
if (Pos.Y < top) Pos.Y = top;
Pos.X = CUR.X;
SetConsoleCursorPosition( hConOut, Pos );
@ -1115,9 +1114,8 @@ void InterpretEscSeq( void )
case 'e': // ESC[#e
case 'B': // ESC[#B Moves cursor down # lines
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[B == ESC[1B
if (es_argc != 1) return;
Pos.Y = CUR.Y + es_argv[0];
if (es_argc > 1) return; // ESC[B == ESC[1B
Pos.Y = CUR.Y + p1;
if (Pos.Y > bottom) Pos.Y = bottom;
Pos.X = CUR.X;
SetConsoleCursorPosition( hConOut, Pos );
@ -1125,9 +1123,8 @@ void InterpretEscSeq( void )
case 'a': // ESC[#a
case 'C': // ESC[#C Moves cursor forward # spaces
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[C == ESC[1C
if (es_argc != 1) return;
Pos.X = CUR.X + es_argv[0];
if (es_argc > 1) return; // ESC[C == ESC[1C
Pos.X = CUR.X + p1;
if (Pos.X > RIGHT) Pos.X = RIGHT;
Pos.Y = CUR.Y;
SetConsoleCursorPosition( hConOut, Pos );
@ -1135,27 +1132,24 @@ void InterpretEscSeq( void )
case 'j': // ESC[#j
case 'D': // ESC[#D Moves cursor back # spaces
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[D == ESC[1D
if (es_argc != 1) return;
Pos.X = CUR.X - es_argv[0];
if (es_argc > 1) return; // ESC[D == ESC[1D
Pos.X = CUR.X - p1;
if (Pos.X < LEFT) Pos.X = LEFT;
Pos.Y = CUR.Y;
SetConsoleCursorPosition( hConOut, Pos );
return;
case 'E': // ESC[#E Moves cursor down # lines, column 1.
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[E == ESC[1E
if (es_argc != 1) return;
Pos.Y = CUR.Y + es_argv[0];
if (es_argc > 1) return; // ESC[E == ESC[1E
Pos.Y = CUR.Y + p1;
if (Pos.Y > bottom) Pos.Y = bottom;
Pos.X = LEFT;
SetConsoleCursorPosition( hConOut, Pos );
return;
case 'F': // ESC[#F Moves cursor up # lines, column 1.
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[F == ESC[1F
if (es_argc != 1) return;
Pos.Y = CUR.Y - es_argv[0];
if (es_argc > 1) return; // ESC[F == ESC[1F
Pos.Y = CUR.Y - p1;
if (Pos.Y < top) Pos.Y = top;
Pos.X = LEFT;
SetConsoleCursorPosition( hConOut, Pos );
@ -1163,9 +1157,8 @@ void InterpretEscSeq( void )
case '`': // ESC[#`
case 'G': // ESC[#G Moves cursor column # in current row.
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[G == ESC[1G
if (es_argc != 1) return;
Pos.X = es_argv[0] - 1;
if (es_argc > 1) return; // ESC[G == ESC[1G
Pos.X = p1 - 1;
if (Pos.X > RIGHT) Pos.X = RIGHT;
if (Pos.X < LEFT) Pos.X = LEFT;
Pos.Y = CUR.Y;
@ -1173,9 +1166,8 @@ void InterpretEscSeq( void )
return;
case 'd': // ESC[#d Moves cursor row #, current column.
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[d == ESC[1d
if (es_argc != 1) return;
Pos.Y = top + es_argv[0] - 1;
if (es_argc > 1) return; // ESC[d == ESC[1d
Pos.Y = top + p1 - 1;
if (Pos.Y < top) Pos.Y = top;
if (Pos.Y > bottom) Pos.Y = bottom;
SetConsoleCursorPosition( hConOut, Pos );
@ -1183,45 +1175,38 @@ void InterpretEscSeq( void )
case 'f': // ESC[#;#f
case 'H': // ESC[#;#H Moves cursor to line #, column #
if (es_argc == 0)
es_argv[es_argc++] = 1; // ESC[H == ESC[1;1H
if (es_argc == 1)
es_argv[es_argc++] = 1; // ESC[#H == ESC[#;1H
if (es_argc > 2) return;
Pos.X = es_argv[1] - 1;
if (es_argc > 2) return; // ESC[H == ESC[1;1H ESC[#H == ESC[#;1H
Pos.X = p2 - 1;
if (Pos.X < LEFT) Pos.X = LEFT;
if (Pos.X > RIGHT) Pos.X = RIGHT;
Pos.Y = top + es_argv[0] - 1;
Pos.Y = top + p1 - 1;
if (Pos.Y < top) Pos.Y = top;
if (Pos.Y > bottom) Pos.Y = bottom;
SetConsoleCursorPosition( hConOut, Pos );
return;
case 'I': // ESC[#I Moves cursor forward # tabs
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[I == ESC[1I
if (es_argc != 1) return;
if (es_argc > 1) return; // ESC[I == ESC[1I
Pos.Y = CUR.Y;
Pos.X = (CUR.X & -8) + es_argv[0] * 8;
Pos.X = (CUR.X & -8) + p1 * 8;
if (Pos.X > RIGHT) Pos.X = RIGHT;
SetConsoleCursorPosition( hConOut, Pos );
return;
case 'Z': // ESC[#Z Moves cursor back # tabs
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[Z == ESC[1Z
if (es_argc != 1) return;
if (es_argc > 1) return; // ESC[Z == ESC[1Z
Pos.Y = CUR.Y;
if ((CUR.X & 7) == 0)
Pos.X = CUR.X - es_argv[0] * 8;
Pos.X = CUR.X - p1 * 8;
else
Pos.X = (CUR.X & -8) - (es_argv[0] - 1) * 8;
Pos.X = (CUR.X & -8) - (p1 - 1) * 8;
if (Pos.X < LEFT) Pos.X = LEFT;
SetConsoleCursorPosition( hConOut, Pos );
return;
case 'b': // ESC[#b Repeat character
if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[b == ESC[1b
if (es_argc != 1) return;
while (--es_argv[0] >= 0)
if (es_argc > 1) return; // ESC[b == ESC[1b
while (--p1 >= 0)
PushBuffer( ChPrev );
return;
@ -1239,8 +1224,7 @@ void InterpretEscSeq( void )
return;
case 'c': // ESC[#c Device attributes
if (es_argc == 0) es_argv[es_argc++] = 0; // ESC[c == ESC[0c
if (es_argc != 1 || es_argv[0] != 0) return;
if (es_argc > 1 || es_argv[0] != 0) return; // ESC[c == ESC[0c
SendSequence( L"\33[?62;1c" ); // VT220 with 132 columns
return;
@ -1655,6 +1639,8 @@ ParseAndPrintString( HANDLE hDev,
FlushBuffer();
prefix = c;
prefix2 = 0;
es_argc = 0;
es_argv[0] = es_argv[1] = 0;
Pt_len = 0;
*Pt_arg = '\0';
state = 3;
@ -1678,15 +1664,12 @@ ParseAndPrintString( HANDLE hDev,
{
if (is_digit( c ))
{
es_argc = 0;
es_argv[0] = c - '0';
state = 4;
}
else if (c == ';')
{
es_argc = 1;
es_argv[0] = 0;
es_argv[1] = 0;
state = 4;
}
else if (c == ':')
@ -1718,6 +1701,7 @@ ParseAndPrintString( HANDLE hDev,
if (is_digit( c ))
{
es_argv[es_argc] = 10 * es_argv[es_argc] + (c - '0');
if (es_argv[es_argc] > 32767) es_argv[es_argc] = 32767;
}
else if (c == ';')
{

2
readme.txt
View File

@ -311,6 +311,8 @@ Version History
(fixes redirecting to CON and Microsoft's conio);
- fix cursor report with duplicated digits (e.g. "11" was only writing "1");
- fix issues with CRM;
- fix explicit zero parameters not defaulting to 1;
* limit parameters to a maximum value of 32767;
* go back to saving the buffer cursor position;
* preserve escape that isn't part of a sequence;
* escape control characters;