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Removed tabs from the foreign sources

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git-svn-id: svn://svn.cc65.org/cc65/trunk@3379 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2005-02-14 09:22:37 +00:00
parent 0a12a012e6
commit de4162a63f
2 changed files with 289 additions and 289 deletions
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522
libsrc/common/_scanf.c
View File

@ -36,42 +36,42 @@ extern void __fastcall__ _seterrno (unsigned char code);
/*****************************************************************************/
/* SetJmp return codes */
/* SetJmp return codes */
/*****************************************************************************/
enum {
RC_OK, /* setjmp() call */
RC_NOCONV, /* No conversion possible */
RC_EOF /* EOF reached */
RC_OK, /* setjmp() call */
RC_NOCONV, /* No conversion possible */
RC_EOF /* EOF reached */
};
/*****************************************************************************/
/* Data */
/* Data */
/*****************************************************************************/
static const char* format; /* Copy of function argument */
static const struct scanfdata* D_; /* Copy of function argument */
static va_list ap; /* Copy of function argument */
static jmp_buf JumpBuf; /* "Label" that is used for failures */
static char F; /* Character from format string */
static unsigned CharCount; /* Characters read so far */
static int C; /* Character from input */
static unsigned Width; /* Maximum field width */
static long IntVal; /* Converted int value */
static int Assignments; /* Number of assignments */
static unsigned char IntBytes; /* Number of bytes-1 for int conversions */
static const char* format; /* Copy of function argument */
static const struct scanfdata* D_; /* Copy of function argument */
static va_list ap; /* Copy of function argument */
static jmp_buf JumpBuf; /* "Label" that is used for failures */
static char F; /* Character from format string */
static unsigned CharCount; /* Characters read so far */
static int C; /* Character from input */
static unsigned Width; /* Maximum field width */
static long IntVal; /* Converted int value */
static int Assignments; /* Number of assignments */
static unsigned char IntBytes; /* Number of bytes-1 for int conversions */
/* Flags */
static bool Converted; /* Some object was converted */
static bool Positive; /* Flag for positive value */
static bool NoAssign; /* Suppress assignment */
static bool Invert; /* Do we need to invert the charset? */
static bool Converted; /* Some object was converted */
static bool Positive; /* Flag for positive value */
static bool NoAssign; /* Suppress assignment */
static bool Invert; /* Do we need to invert the charset? */
static unsigned char CharSet[(1+UCHAR_MAX)/CHAR_BIT];
static const unsigned char Bits[CHAR_BIT] = {
0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80
@ -89,7 +89,7 @@ static const unsigned char Bits[CHAR_BIT] = {
/*****************************************************************************/
/* Character sets */
/* Character sets */
/*****************************************************************************/
@ -107,13 +107,13 @@ static unsigned FindBit (void)
*/
{
asm ("pha");
asm ("lsr a"); /* Divide by CHAR_BIT */
asm ("lsr a"); /* Divide by CHAR_BIT */
asm ("lsr a");
asm ("lsr a");
asm ("tax"); /* Byte's offset */
asm ("tax"); /* Byte's offset */
asm ("pla");
asm ("and #%b", CHAR_BIT-1);
asm ("tay"); /* Bit's offset */
asm ("tay"); /* Bit's offset */
asm ("lda %v,y", Bits);
return (unsigned) __AX__;
}
@ -139,7 +139,7 @@ static unsigned char IsCharInSet (void)
/* Get the character from C. */
asm ("lda #$00");
asm ("ldx %v+1", C);
asm ("bne L1"); /* EOF never is in the set */
asm ("bne L1"); /* EOF never is in the set */
asm ("lda %v", C);
FindBit();
asm ("and %v,x", CharSet);
@ -167,7 +167,7 @@ static void InvertCharSet (void)
/*****************************************************************************/
/* Code */
/* Code */
/*****************************************************************************/
@ -290,7 +290,7 @@ static void CheckEnd (void)
asm ("ldx %v+1", C);
asm ("beq %g", Done);
Error (RC_EOF);
Error (RC_EOF);
Done:
}
@ -300,7 +300,7 @@ static void SkipWhite (void)
/* Skip white space in the input and return the first non white character */
{
while ((bool) isspace (C)) {
ReadChar ();
ReadChar ();
}
}
@ -346,8 +346,8 @@ static unsigned char __fastcall__ HexVal (char C)
/* Convert a digit to a value */
{
return (bool) isdigit (C) ?
C - '0' :
(char) tolower ((int) C) - ('a' - 10);
C - '0' :
(char) tolower ((int) C) - ('a' - 10);
}
@ -360,15 +360,15 @@ static void __fastcall__ ReadInt (unsigned char Base)
/* Read the integer value */
IntVal = 0L;
while ((bool) isxdigit (C) && ++Width != 0
&& (Val = HexVal ((char) C)) < Base) {
++CharCount;
IntVal = IntVal * (long) Base + (long) Val;
ReadChar ();
&& (Val = HexVal ((char) C)) < Base) {
++CharCount;
IntVal = IntVal * (long) Base + (long) Val;
ReadChar ();
}
/* If we didn't convert anything, it's a failure. */
if (CharCount == 0) {
Error (RC_NOCONV);
Error (RC_NOCONV);
}
/* Another conversion */
@ -403,10 +403,10 @@ Loop: asm ("lda %v,y", IntVal);
asm ("dey");
asm ("bpl %g", Loop);
/* Another assignment */
asm ("inc %v", Assignments);
asm ("bne %g", Done);
asm ("inc %v+1", Assignments);
/* Another assignment */
asm ("inc %v", Assignments);
asm ("bne %g", Done);
asm ("inc %v+1", Assignments);
Done:
}
}
@ -432,17 +432,17 @@ static void __fastcall__ ScanInt (unsigned char Base)
case 'x':
case 'X':
Base = 16;
Converted = true;
Converted = true;
ReadChar ();
break;
default:
Base = 8;
/* Restart at the beginning of the number because it might
* be only a single zero digit (which already was read).
*/
PushBack ();
C = '0';
/* Restart at the beginning of the number because it might
* be only a single zero digit (which already was read).
*/
PushBack ();
C = '0';
}
} else {
Base = 10;
@ -480,23 +480,23 @@ static char GetFormat (void)
int __fastcall__ _scanf (const struct scanfdata* D,
const char* format_, va_list ap_)
const char* format_, va_list ap_)
/* This is the routine used to do the actual work. It is called from several
* types of wrappers to implement the actual ISO xxscanf functions.
*/
{
register char* S;
bool HaveWidth; /* True if a width was given */
bool Match; /* True if a character-set has any matches */
bool Match; /* True if a character-set has any matches */
char Start; /* Walks over a range */
/* Place copies of the arguments into global variables. This is not very
* nice, but on a 6502 platform it gives better code, since the values
* do not have to be passed as parameters.
*/
D_ = D;
D_ = D;
format = format_;
ap = ap_;
ap = ap_;
/* Initialize variables */
Converted = false;
@ -509,81 +509,81 @@ int __fastcall__ _scanf (const struct scanfdata* D,
if ((unsigned char) setjmp (JumpBuf) == RC_OK) {
Again:
/* Get the next input character */
ReadChar ();
/* Get the next input character */
ReadChar ();
/* Walk over the format string */
while (GetFormat ()) {
/* Walk over the format string */
while (GetFormat ()) {
/* Check for a conversion */
if (F != '%') {
/* Check for a conversion */
if (F != '%') {
/* Check for a match */
if ((bool) isspace ((int) F)) {
/* Check for a match */
if ((bool) isspace ((int) F)) {
/* Special white space handling: Any whitespace in the
/* Special white space handling: Any whitespace in the
* format string matches any amount of whitespace including
* none(!). So this match will never fail.
*/
SkipWhite ();
continue;
}
*/
SkipWhite ();
continue;
}
Percent:
/* ### Note: The opposite test (C == F)
** would be optimized into buggy code!
*/
if (C != (int) F) {
/* ### Note: The opposite test (C == F)
** would be optimized into buggy code!
*/
if (C != (int) F) {
/* A mismatch -- we will stop scanning the input,
* and return the number of assigned conversions.
*/
goto NoConv;
}
/* A mismatch -- we will stop scanning the input,
* and return the number of assigned conversions.
*/
goto NoConv;
}
/* A match -- get the next input character, and continue. */
goto Again;
/* A match -- get the next input character, and continue. */
goto Again;
} else {
} else {
/* A conversion. Skip the percent sign. */
/* 0. Check for %% */
if (GetFormat () == '%') {
goto Percent;
}
/* A conversion. Skip the percent sign. */
/* 0. Check for %% */
if (GetFormat () == '%') {
goto Percent;
}
/* 1. Assignment suppression */
NoAssign = (F == '*');
if (NoAssign) {
GetFormat ();
/* 1. Assignment suppression */
NoAssign = (F == '*');
if (NoAssign) {
GetFormat ();
}
/* 2. Maximum field width */
Width = UINT_MAX;
HaveWidth = (bool) isdigit (F);
if (HaveWidth) {
Width = 0;
Width = UINT_MAX;
HaveWidth = (bool) isdigit (F);
if (HaveWidth) {
Width = 0;
do {
/* ### Non portable ### */
Width = Width * 10 + (F & 0x0F);
} while ((bool) isdigit (GetFormat ()));
} while ((bool) isdigit (GetFormat ()));
}
if (Width == 0) {
/* Invalid specification */
/* Note: This method of leaving the function might seem
* to be crude, but it optimizes very well because
* the four exits can share this code.
*/
_seterrno (EINVAL);
Assignments = EOF;
PushBack ();
return Assignments;
}
/* Increment-and-test makes better code than test-and-decrement
* does. So, change the width into a form that can be used in
* that way.
*/
Width = ~Width;
if (Width == 0) {
/* Invalid specification */
/* Note: This method of leaving the function might seem
* to be crude, but it optimizes very well because
* the four exits can share this code.
*/
_seterrno (EINVAL);
Assignments = EOF;
PushBack ();
return Assignments;
}
/* Increment-and-test makes better code than test-and-decrement
* does. So, change the width into a form that can be used in
* that way.
*/
Width = ~Width;
/* 3. Length modifier */
IntBytes = sizeof(int) - 1;
@ -593,7 +593,7 @@ Percent:
IntBytes = sizeof(char) - 1;
++format;
}
GetFormat ();
GetFormat ();
break;
case 'l':
@ -604,108 +604,108 @@ Percent:
/* FALLTHROUGH */
case 'j': /* intmax_t */
IntBytes = sizeof(long) - 1;
/* FALLTHROUGH */
/* FALLTHROUGH */
case 'z': /* size_t */
case 't': /* ptrdiff_t */
/* Same size as int */
/* Same size as int */
case 'L': /* long double - ignore this one */
GetFormat ();
GetFormat ();
}
/* 4. Conversion specifier */
switch (F) {
switch (F) {
/* 'd' and 'u' conversions are actually the same, since the
* standard says that even the 'u' modifier allows an
* optionally signed integer.
*/
case 'd': /* Optionally signed decimal integer */
case 'd': /* Optionally signed decimal integer */
case 'u':
ScanInt (10);
break;
ScanInt (10);
break;
case 'i':
/* Optionally signed integer with a base */
ScanInt (0);
break;
case 'i':
/* Optionally signed integer with a base */
ScanInt (0);
break;
case 'o':
/* Optionally signed octal integer */
ScanInt (8);
break;
case 'o':
/* Optionally signed octal integer */
ScanInt (8);
break;
case 'x':
case 'X':
/* Optionally signed hexadecimal integer */
ScanInt (16);
break;
case 'x':
case 'X':
/* Optionally signed hexadecimal integer */
ScanInt (16);
break;
case 's':
/* Whitespace-terminated string */
SkipWhite ();
CheckEnd (); /* Is it an input failure? */
case 's':
/* Whitespace-terminated string */
SkipWhite ();
CheckEnd (); /* Is it an input failure? */
Converted = true; /* No, conversion will succeed */
if (NoAssign == false) {
S = va_arg (ap, char*);
}
while (C != EOF
&& (bool) isspace (C) == false
&& ++Width) {
if (NoAssign == false) {
*S++ = C;
}
ReadChar ();
}
/* Terminate the string just read */
if (NoAssign == false) {
*S = '\0';
++Assignments;
}
break;
if (NoAssign == false) {
S = va_arg (ap, char*);
}
while (C != EOF
&& (bool) isspace (C) == false
&& ++Width) {
if (NoAssign == false) {
*S++ = C;
}
ReadChar ();
}
/* Terminate the string just read */
if (NoAssign == false) {
*S = '\0';
++Assignments;
}
break;
case 'c':
/* Fixed-length string, NOT zero-terminated */
if (HaveWidth == false) {
/* No width given, default is 1 */
Width = ~1u;
}
CheckEnd (); /* Is it an input failure? */
Converted = true; /* No, at least 1 char. available */
if (NoAssign == false) {
S = va_arg (ap, char*);
/* ## This loop is convenient for us, but it isn't
* standard C. The standard implies that a failure
* shouldn't put anything into the array argument.
*/
case 'c':
/* Fixed-length string, NOT zero-terminated */
if (HaveWidth == false) {
/* No width given, default is 1 */
Width = ~1u;
}
CheckEnd (); /* Is it an input failure? */
Converted = true; /* No, at least 1 char. available */
if (NoAssign == false) {
S = va_arg (ap, char*);
/* ## This loop is convenient for us, but it isn't
* standard C. The standard implies that a failure
* shouldn't put anything into the array argument.
*/
while (++Width) {
CheckEnd (); /* Is it a matching failure? */
CheckEnd (); /* Is it a matching failure? */
*S++ = C;
ReadChar ();
}
++Assignments;
} else {
++Assignments;
} else {
/* Just skip as many chars as given */
while (++Width) {
CheckEnd (); /* Is it a matching failure? */
CheckEnd (); /* Is it a matching failure? */
ReadChar ();
}
}
break;
break;
case '[':
/* String using characters from a set */
case '[':
/* String using characters from a set */
/* Clear the set */
memset (CharSet, 0, sizeof (CharSet));
/* Skip the left-bracket, and test for inversion. */
Invert = (GetFormat () == '^');
/* Skip the left-bracket, and test for inversion. */
Invert = (GetFormat () == '^');
if (Invert) {
GetFormat ();
}
if (F == ']') {
/* Empty sets aren't allowed; so, a right-bracket
* at the beginning must be a member of the set.
*/
/* Empty sets aren't allowed; so, a right-bracket
* at the beginning must be a member of the set.
*/
AddCharToSet (F);
GetFormat ();
}
@ -716,16 +716,16 @@ Percent:
Start = F;
++format;
switch (GetFormat ()) {
case '\0':
case ']':
case '\0':
case ']':
/* '-' as last char means: include '-' */
AddCharToSet (Start);
AddCharToSet ('-');
break;
default:
break;
default:
/* Include all characters
* that are in the range.
*/
* that are in the range.
*/
while (1) {
AddCharToSet (Start);
if (Start == F) {
@ -743,11 +743,11 @@ Percent:
GetFormat ();
}
}
/* Don't go beyond the end of the format string. */
/* (Maybe, this should mean an invalid specification.) */
if (F == '\0') {
--format;
}
/* Don't go beyond the end of the format string. */
/* (Maybe, this should mean an invalid specification.) */
if (F == '\0') {
--format;
}
/* Invert the set if requested */
if (Invert) {
@ -758,102 +758,102 @@ Percent:
* store them into a string while they are part of
* the set.
*/
Match = false;
if (NoAssign == false) {
S = va_arg (ap, char*);
}
Match = false;
if (NoAssign == false) {
S = va_arg (ap, char*);
}
while (IsCharInSet () && ++Width) {
if (NoAssign == false) {
if (NoAssign == false) {
*S++ = C;
}
Match = Converted = true;
ReadChar ();
}
Match = Converted = true;
ReadChar ();
}
/* At least one character must match the set. */
if (Match == false) {
goto NoConv;
}
if (NoAssign == false) {
/* At least one character must match the set. */
if (Match == false) {
goto NoConv;
}
if (NoAssign == false) {
*S = '\0';
++Assignments;
}
break;
++Assignments;
}
break;
case 'p':
/* Pointer, general format is 0xABCD.
* %hhp --> zero-page pointer
* %hp --> near pointer
* %lp --> far pointer
*/
SkipWhite ();
if (CHAR (C) != '0') {
goto NoConv;
case 'p':
/* Pointer, general format is 0xABCD.
* %hhp --> zero-page pointer
* %hp --> near pointer
* %lp --> far pointer
*/
SkipWhite ();
if (CHAR (C) != '0') {
goto NoConv;
}
Converted = true;
ReadChar ();
switch (CHAR (C)) {
case 'x':
case 'X':
break;
default:
goto NoConv;
}
Converted = true;
ReadChar ();
switch (CHAR (C)) {
case 'x':
case 'X':
break;
default:
goto NoConv;
}
ReadChar ();
ReadInt (16);
AssignInt ();
break;
AssignInt ();
break;
case 'n':
/* Store the number of characters consumed so far
* (the read-ahead character hasn't been consumed).
*/
IntVal = (long) (CharCount - (C == EOF ? 0u : 1u));
AssignInt ();
/* Don't count it. */
if (NoAssign == false) {
--Assignments;
}
break;
case 'n':
/* Store the number of characters consumed so far
* (the read-ahead character hasn't been consumed).
*/
IntVal = (long) (CharCount - (C == EOF ? 0u : 1u));
AssignInt ();
/* Don't count it. */
if (NoAssign == false) {
--Assignments;
}
break;
case 'S':
case 'C':
/* Wide characters */
case 'S':
case 'C':
/* Wide characters */
case 'a':
case 'A':
case 'e':
case 'E':
case 'f':
case 'F':
case 'g':
case 'G':
/* Optionally signed float */
case 'a':
case 'A':
case 'e':
case 'E':
case 'f':
case 'F':
case 'g':
case 'G':
/* Optionally signed float */
/* Those 2 groups aren't implemented. */
_seterrno (ENOSYS);
Assignments = EOF;
PushBack ();
return Assignments;
/* Those 2 groups aren't implemented. */
_seterrno (ENOSYS);
Assignments = EOF;
PushBack ();
return Assignments;
default:
/* Invalid specification */
_seterrno (EINVAL);
Assignments = EOF;
PushBack ();
return Assignments;
}
}
}
default:
/* Invalid specification */
_seterrno (EINVAL);
Assignments = EOF;
PushBack ();
return Assignments;
}
}
}
} else {
NoConv:
/* Coming here means a failure. If that happens at EOF, with no
/* Coming here means a failure. If that happens at EOF, with no
* conversion attempts, then it is considered an error; otherwise,
* the number of assignments is returned (the default behaviour).
* the number of assignments is returned (the default behaviour).
*/
if (C == EOF && Converted == false) {
Assignments = EOF; /* Special case: error */
}
if (C == EOF && Converted == false) {
Assignments = EOF; /* Special case: error */
}
}
/* Put the read-ahead character back into the input stream. */

56
libsrc/common/scanf.s
View File

@ -5,18 +5,18 @@
; 2004-12-31, Greg King
;
.export _scanf
.export _scanf
.import _stdin, pushax, addysp, _vfscanf
.import sp:zp, ptr1:zp
.import _stdin, pushax, addysp, _vfscanf
.import sp:zp, ptr1:zp
.macpack generic
.macpack generic
; ----------------------------------------------------------------------------
; Code
;
_scanf:
sty ArgSize ; Number of argument bytes passed in .Y
sty ArgSize ; Number of argument bytes passed in .Y
; We are using a (hopefully) clever trick here to reduce code size. On entry,
; the stack pointer points to the last pushed argument of the variable
@ -28,47 +28,47 @@ _scanf:
; * we will have the address of the Format argument which needs to
; be pushed next.
lda _stdin
ldx _stdin+1
jsr pushax
lda _stdin
ldx _stdin+1
jsr pushax
; Now, calculate the va_list pointer, which does point to Format.
lda sp
ldx sp+1
add ArgSize
bcc @L1
inx
@L1: sta ptr1
stx ptr1+1
lda sp
ldx sp+1
add ArgSize
bcc @L1
inx
@L1: sta ptr1
stx ptr1+1
; Push a copy of Format.
ldy #1
lda (ptr1),y
tax
dey
lda (ptr1),y
jsr pushax
ldy #1
lda (ptr1),y
tax
dey
lda (ptr1),y
jsr pushax
; Load va_list [last and __fastcall__ argument to vfscanf()].
lda ptr1
ldx ptr1+1
lda ptr1
ldx ptr1+1
; Call vfscanf().
jsr _vfscanf
jsr _vfscanf
; Clean up the stack. We will return what we got from vfscanf().
ldy ArgSize
jmp addysp
ldy ArgSize
jmp addysp
; ----------------------------------------------------------------------------
; Data
;
.bss
.bss
ArgSize:
.res 1 ; Number of argument bytes
.res 1 ; Number of argument bytes