-/* $Id$ */
-
/* _PDCLIB_print( const char *, struct _PDCLIB_status_t * )
This file is part of the Public Domain C Library (PDCLib).
#include <stdlib.h>
#include <stddef.h>
+#ifndef REGTEST
+
/* Using an integer's bits as flags for both the conversion flags and length
modifiers.
*/
/* FIXME: one too many flags to work on a 16-bit machine, join some (e.g. the
width flags) into a combined field.
*/
-#define E_minus 1<<0
-#define E_plus 1<<1
-#define E_alt 1<<2
-#define E_space 1<<3
-#define E_zero 1<<4
-#define E_done 1<<5
-#define E_char 1<<6
-#define E_short 1<<7
-#define E_long 1<<8
-#define E_llong 1<<9
-#define E_intmax 1<<10
-#define E_size 1<<11
-#define E_ptrdiff 1<<12
-#define E_intptr 1<<13
-#define E_ldouble 1<<14
-#define E_lower 1<<15
-#define E_unsigned 1<<16
+#define E_minus (1<<0)
+#define E_plus (1<<1)
+#define E_alt (1<<2)
+#define E_space (1<<3)
+#define E_zero (1<<4)
+#define E_done (1<<5)
+
+#define E_char (1<<6)
+#define E_short (1<<7)
+#define E_long (1<<8)
+#define E_llong (1<<9)
+#define E_intmax (1<<10)
+#define E_size (1<<11)
+#define E_ptrdiff (1<<12)
+#define E_pointer (1<<13)
+
+#define E_ldouble (1<<14)
+
+#define E_lower (1<<15)
+#define E_unsigned (1<<16)
/* This macro delivers a given character to either a memory buffer or a stream,
depending on the contents of 'status' (struct _PDCLIB_status_t).
i - pointer to number of characters already delivered in this call
n - pointer to maximum number of characters to be delivered in this call
s - the buffer into which the character shall be delivered
- TODO: ref. fputs() for a better way to buffer handling
*/
-#define DELIVER( x ) \
+#define PUT( x ) \
do { \
int character = x; \
if ( status->i < status->n ) { \
/* At worst, we need two prefix characters (hex prefix). */
char preface[3] = "\0";
size_t preidx = 0;
- if ( ( status->flags & E_alt ) && ( status->base == 16 || status->base == 8 ) )
+ if ( ( status->flags & E_alt ) && ( status->base == 16 || status->base == 8 ) && ( value != 0 ) )
{
/* Octal / hexadecimal prefix for "%#" conversions */
preface[ preidx++ ] = '0';
{
for ( size_t i = 0; i < status->width - characters; ++i )
{
- DELIVER( ' ' );
+ PUT( ' ' );
++(status->current);
}
}
preidx = 0;
while ( preface[ preidx ] != '\0' )
{
- DELIVER( preface[ preidx++ ] );
+ PUT( preface[ preidx++ ] );
++(status->current);
}
if ( ( ! ( status->flags & E_minus ) ) && ( status->flags & E_zero ) )
*/
while ( status->current < status->width )
{
- DELIVER( '0' );
+ PUT( '0' );
++(status->current);
}
}
/* Do the precision padding if necessary. */
for ( size_t i = 0; i < prec_pads; ++i )
{
- DELIVER( '0' );
+ PUT( '0' );
}
}
}
if ( status->flags & E_lower )
{
/* Lowercase letters. Same array used for strto...(). */
- DELIVER( _PDCLIB_digits[ digit ] );
+ PUT( _PDCLIB_digits[ digit ] );
}
else
{
/* Uppercase letters. Array only used here, only 0-F. */
- DELIVER( _PDCLIB_Xdigits[ digit ] );
+ PUT( _PDCLIB_Xdigits[ digit ] );
}
}
}
if ( *(++spec) == '%' )
{
/* %% -> print single '%' */
- DELIVER( *spec );
+ PUT( *spec );
return ++spec;
}
/* Initializing status structure */
spec = endptr;
}
/* Having a precision cancels out any zero flag. */
- status->flags ^= E_zero;
+ status->flags &= ~E_zero;
}
/* Optional length modifier
break;
case 'c':
/* TODO: Flags, wide chars. */
- DELIVER( va_arg( status->arg, int ) );
+ PUT( va_arg( status->arg, int ) );
return ++spec;
case 's':
/* TODO: Flags, wide chars. */
char * s = va_arg( status->arg, char * );
while ( *s != '\0' )
{
- DELIVER( *(s++) );
+ PUT( *(s++) );
}
return ++spec;
}
case 'p':
/* TODO: E_long -> E_intptr */
status->base = 16;
- status->flags |= ( E_lower | E_unsigned | E_alt | E_long );
+ status->flags |= ( E_lower | E_unsigned | E_alt | E_pointer );
break;
case 'n':
{
if ( status->flags & E_unsigned )
{
uintmax_t value;
- switch ( status->flags & ( E_char | E_short | E_long | E_llong | E_size ) )
+ switch ( status->flags & ( E_char | E_short | E_long | E_llong | E_size | E_pointer ) )
{
case E_char:
value = (uintmax_t)(unsigned char)va_arg( status->arg, int );
case E_size:
value = (uintmax_t)va_arg( status->arg, size_t );
break;
+ case E_pointer:
+ value = (uintmax_t)(uintptr_t)va_arg( status->arg, void * );
+ break;
+ default:
+ puts( "UNSUPPORTED PRINTF FLAG COMBINATION" );
+ return NULL;
}
++(status->current);
/* FIXME: The if clause means one-digit values do not get formatted */
}
if ( status->flags & E_lower )
{
- DELIVER( _PDCLIB_digits[ digit ] );
+ PUT( _PDCLIB_digits[ digit ] );
}
else
{
- DELIVER( _PDCLIB_Xdigits[ digit ] );
+ PUT( _PDCLIB_Xdigits[ digit ] );
}
}
else
case E_intmax:
int2base( va_arg( status->arg, intmax_t ), status );
break;
+ default:
+ puts( "UNSUPPORTED PRINTF FLAG COMBINATION" );
+ return NULL;
}
}
if ( status->flags & E_minus )
{
while ( status->current < status->width )
{
- DELIVER( ' ' );
+ PUT( ' ' );
++(status->current);
}
}
return ++spec;
}
+#endif
+
#ifdef TEST
-#include <_PDCLIB_test.h>
+#define _PDCLIB_FILEID "_PDCLIB/print.c"
+#define _PDCLIB_STRINGIO
+
+#include "_PDCLIB_test.h"
-#include <limits.h>
-#include <string.h>
+#ifndef REGTEST
static int testprintf( char * buffer, const char * format, ... )
{
return status.i;
}
-#define TEST_CONVERSION_ONLY
+#endif
-#define TESTCASE_SPRINTF( x ) if ( strcmp( target, x ) == 0 ) {} \
- else { TEST_RESULTS += 1; printf( "FAILED: " __FILE__ ", line %d - \"%s\" != %s\n", __LINE__, target, #x ); }
+#define TEST_CONVERSION_ONLY
int main( void )
{
+#ifndef REGTEST
char target[100];
-#include "printf_testcases.incl"
+#include "printf_testcases.h"
+#endif
return TEST_RESULTS;
}
projects / pdclib / blobdiff