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Expand tabs for int21/ah=2,9 even in raw device modes and if stdout is

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redirected. This solves bug 1737 (grep2msg problem)
This copy&paste exercise is to be cleaned up a bit later!


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@759 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Bart Oldeman 2004-01-27 19:26:58 +00:00
parent 828a125aed
commit b7491eba32
2 changed files with 32 additions and 7 deletions
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28
kernel/chario.c
View File

@ -277,7 +277,33 @@ void write_char(int c, int sft_idx)
void write_char_stdout(int c)
{
write_char(c, get_sft_idx(STDOUT));
unsigned char scrpos = scr_pos;
unsigned char count = 1;
unsigned flags = get_sft(STDOUT)->sft_flags & (SFT_FDEVICE | SFT_FBINARY);
/* ah=2, ah=9 should expand tabs even for raw devices and disk files */
if (flags != SFT_FDEVICE)
{
if (c == CR)
scrpos = 0;
else if (c == BS) {
if (scrpos > 0)
scrpos--;
} else if (c != LF && c != BELL) {
if (c == HT) {
count = 8 - (scrpos & 7);
c = ' ';
}
scrpos += count;
}
/* for raw devices already updated in dosfns.c */
if (!(flags & SFT_FDEVICE))
scr_pos = scrpos;
}
do {
write_char(c, get_sft_idx(STDOUT));
} while (--count != 0);
}
#define iscntrl(c) ((unsigned char)(c) < ' ')

11
kernel/inthndlr.c
View File

@ -482,14 +482,13 @@ dispatch:
/* Display String */
case 0x09:
{
size_t count = 0;
char FAR *bp = FP_DS_DX;
unsigned char c;
unsigned char FAR *bp = FP_DS_DX;
while (bp[count] != '$')
count++;
while ((c = *bp++) != '$')
write_char_stdout(c);
DosWrite(STDOUT, count, bp);
lr.AL = '$';
lr.AL = c;
}
break;