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GetNumArg and misc other cleanups from Lucho

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git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@944 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Bart Oldeman 2004-05-23 16:21:14 +00:00
parent 24d27f2f9b
commit c97bc20bf2
1 changed files with 41 additions and 55 deletions
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96
kernel/config.c
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@ -206,11 +206,10 @@ STATIC VOID CfgMenuDefault(BYTE * pLine);
STATIC BYTE * skipwh(BYTE * s);
STATIC BYTE * scan(BYTE * s, BYTE * d);
STATIC BOOL isnum(char ch);
STATIC char * GetNumber(REG const char *p, int *num);
#if 0
STATIC COUNT tolower(COUNT c);
#endif
STATIC unsigned char toupper(unsigned char c);
STATIC char toupper(char c);
STATIC VOID strupr(char *s);
STATIC VOID mcb_init(UCOUNT seg, UWORD size, BYTE type);
STATIC VOID mumcb_init(UCOUNT seg, UWORD size);
@ -865,16 +864,43 @@ STATIC BOOL SkipLine(char *pLine)
}
STATIC BYTE * GetNumArg(BYTE * pLine, COUNT * pnArg)
/* JPP - changed so will accept hex number. */
/* ea - changed to accept hex digits in hex numbers */
STATIC char *GetNumArg(char *p, int *num)
{
static char digits[] = "0123456789ABCDEF";
unsigned char base = 10;
int sign = 1;
int n = 0;
/* look for NUMBER */
pLine = skipwh(pLine);
if (!isnum(*pLine) && *pLine != '-')
p = skipwh(p);
if (*p == '-')
{
CfgFailure(pLine);
return (BYTE *) 0;
p++;
sign = -1;
}
return (BYTE *)GetNumber(pLine, pnArg);
else if (!isnum(*p))
{
CfgFailure(p);
return NULL;
}
for( ; *p; p++)
{
char ch = toupper(*p);
if (ch == 'X')
base = 16;
else
{
char *q = strchr(digits, ch);
if (q == NULL)
break;
n = n * base + (q - digits);
}
}
*num = n * sign;
return p;
}
BYTE *GetStringArg(BYTE * pLine, BYTE * pszString)
@ -974,16 +1000,16 @@ STATIC VOID CfgLastdrive(BYTE * pLine)
BYTE drv;
pLine = skipwh(pLine);
drv = *pLine & ~0x20;
drv = toupper(*pLine);
if (drv < 'A' || drv > 'Z')
{
CfgFailure(pLine);
return;
}
drv -= 'A';
drv++; /* Make real number */
Config.cfgLastdrive = max(Config.cfgLastdrive, drv);
drv -= 'A' - 1; /* Make real number */
if (drv > Config.cfgLastdrive)
Config.cfgLastdrive = drv;
Config.cfgLastdriveHigh = 0;
}
@ -1569,52 +1595,12 @@ STATIC BOOL isnum(char ch)
return (ch >= '0' && ch <= '9');
}
/* JPP - changed so will accept hex number. */
/* ea - changed to accept hex digits in hex numbers */
STATIC char * GetNumber(REG const char *p, int *num)
{
unsigned char base = 10;
int sign = 1;
int n = 0;
if (*p == '-')
{
p++;
sign = -1;
}
for(;;p++)
{
unsigned char ch = toupper(*p);
if (ch == 'X')
{
base = 16;
continue;
}
if (isnum(ch))
{
n = n * base + ch - '0';
}
else if (base == 16 && (ch<='F') && (ch>='A'))
{
n = n * base + 10 + ch - 'A';
}
else
{
break;
}
}
*num = n * sign;
return (char *)p;
}
/* Yet another change for true portability (PJV) */
STATIC unsigned char toupper(unsigned char c)
STATIC char toupper(char c)
{
if (c >= 'a' && c <= 'z')
return (c - ('a' - 'A'));
else
return c;
c -= 'a' - 'A';
return c;
}
/* Convert string s to uppercase */