Cusom printf implementation has slight issue

awsdert (277)
Since output is worth a thousand words in this case I'll just start with how I've called the top level function (the va_list is just fobbed off internally to pawInitStringv) and the output it gave, then the code that took the arguments.
Btw the pawzd etc is supposed to match the original printf's d/u variants (so pawzd is ssize_t or SSIZE_T depending on system, pawu is unsigned integer etc)
pawPrintf( "%%u, 10 gave %u\n", 10 ); %u, 10 gave10 
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typedef struct _PAWVA_FUNC_TEXT { paws str; pawu pos, end; } PAWVA_FUNC_TEXT;
...
PAW_API pawu	pawInitStringv( PAWS *str, paws args, va_list va )
{
	bool	cont = true;
	PAWBUF	UDV = {{0}};
	PAWVA_FUNC **formats = pawStdFormats;
	pawu	leng = strlen(args);
	pawzu	need = leng;
	PAWVA_FUNC_TEXT _txt = {NULL};
	pawzu	split;
	pawhhu	*udv;
	pawu	i = 0, f, took;
	char	*tmp;
	pawd ate = 0;

	/* Check if we're using standard or custom specifiers*/
	if ( strstr( args, "%!" ) == args )
	{
		formats = va_arg( va, PAWVA_FUNC** );
		_txt.pos = _txt.end = i = 2;
	}

	/* Get max ud size */
	for ( f = 0; formats[f]; ++f )
	{
		pawzu size = 0;
		PAWVA_FUNC *F = formats[f];
		F->chk( NULL, &size, NULL, va );
		split = (size > split) ? size : split;
	}

	split += sizeof(_txt);

	/* Assign enough potential UDs that we don't need to reallocate later */
	split += !split;
	udv = pawInitBuffert( &UDV, split, PAW_O_CLEAR_NEW, leng / 2 );
	if ( !udv )
		return 0;

	/* Collect arguments into UDs */
	_txt.str = args + i;
	for ( ; args[i]; ++i )
	{
		if ( args[i] != '%' )
		{
			_txt.end = i;
			continue;
		}

		if ( args[i+1] == '%' )
			_txt.end = i;

		if ( _txt.end > _txt.pos )
		{
			memcpy( udv, &_txt, sizeof(_txt) );
			UDV.Slots.taken += split;
			udv += split;
			UDV.count++;
		}

		_txt.str = args + i + 1;
		_txt.pos = i + 1;
		_txt.end = i + 1;

		if ( args[i+1] == '%' )
		{
			++i;
			continue;
		}

		for ( f = 0; formats[f]; ++f )
		{
			PAWVA_FUNC_TEXT *txt = (PAWVA_FUNC_TEXT*)udv;
			PAWVA_FUNC *F = formats[f];
			pawzu size = 0;
			pawd ate;
			memset( udv, 0, split );
			ate = F->chk( txt + 1, &size, args + i, va );
			if ( ate < 0 )
				continue;
			txt->str = (char*)F;
			UDV.Slots.taken += split;
			need += size;
			udv += split;
			UDV.count++;
			i += ate;
			break;
		}

		assert( formats[f] );
	}

	if ( _txt.end > _txt.pos )
	{
		memcpy( udv, &_txt, sizeof(_txt) );
		UDV.Slots.taken += split;
		udv += split;
		UDV.count++;
	}

	/* Allocate enough space for all arguments to be placed in the
	 * temporary buffer */
	tmp = pawInitStringz( str, need );
	if ( !tmp )
	{
		pawTermBuffer( &UDV );
		return 0;
	}

	/* Use collected UDs */
	udv = pawSeekBufferHead( &UDV );
	for ( i = 0; i < UDV.count; ++i, udv += split )
	{
		PAWVA_FUNC_TEXT *txt = (PAWVA_FUNC_TEXT*)udv;
		if ( txt->end > txt->pos )
			pawJoinStringn( str, txt->str, txt->end - txt->pos );
		else
		{
			PAWVA_FUNC *F = ((PAWVA_FUNC*)(txt->str));
			F->use( txt + 1, str );
		}
	}

	/* Put generated string where it belongs */
	pawTermBuffer( &UDV );
	return took;
}
...
typedef struct _PAW_PUTF_INT
{
	pawu min;
	char ins;
	paws sig;
	paws pfx;
	pawd len;
	char num[bitsof(pawjd)];
	paws sfx;
} PAW_PUTF_INT;
PAW_API pawd paw_putf_int_chk( void *ud, pawzu *size, paws args, va_list va )
{
	if ( ud )
	{
		pawjd jd = 0;
		pawju ju = 0;
		pawu i, ate = 1;
		bool nosig = false;
		bool read_min = false;
		PAW_PUTF_INT *cfg = ud;
		paws base = PAW_BASE10;
		char sig = args[ate++], mod = 0;
		paws mods = "hljztv", sigs = "pboduixX";

		cfg->min = 0;
		cfg->sig = "";
		cfg->pfx = "";
		cfg->sfx = "";
		cfg->ins = ' ';

		if ( sig == '+' )
		{
			cfg->sig = "+";
			sig = args[ate++];
		}

		if ( sig == '0' )
		{
			cfg->ins = '0';
			sig = args[ate++];
		}

		if ( sig == '*' )
		{
			read_min = true;
			sig = args[ate++];
		}
		else
		{
			for ( i = sig, i -= '0'; i < 10u; i = sig, i -= '0' )
			{
				cfg->min += i;
				sig = args[ate++];
			}
		}

		for ( i = 0; mods[i]; ++i )
		{
			if ( sig == mods[i] )
			{
				sig = args[ate++];
				mod = mods[i];
				break;
			}
		}

		if ( mod && sig == mod )
		{
			if ( mod == 'h' )
				mod = 'H';
#ifdef PAWLLD_MAX
			else if ( mod == 'l' )
				mod = 'L';
#endif
			else
				return -1;
			sig = args[ate++];
		}

		for ( i = 0; sigs[i]; ++i )
		{
			if ( sig == sigs[i] )
				break;
		}

		nosig = (sig == 'p' || (sig != 'd' && sig != 'i'));

		if ( !(sigs[i]) || (sig == 'p' && mod) || (nosig && mod == 't'))
			return -1;

		if ( read_min )
			cfg->min = va_arg( va, pawu );

		if ( sig == 'p' )
		{
			if ( !(cfg->min) )
				cfg->min = NEED_DIGITS(bitsof(void*),16) + 2;
			ju = (pawvu)va_arg( va, void const * );
			cfg->pfx = "0x";
			base = PAW_BASE16X;
		}
		else if ( sig == 'd' || sig == 'i' )
		{
			switch ( mod )
			{
#ifdef PAWLLD_MAX
			case 'L': jd = va_arg( va, pawlld ); break;
#endif
			case 'l': jd = va_arg( va, pawld ); break;
			case 'j': jd = va_arg( va, pawjd ); break;
			case 't': jd = va_arg( va, pawtd ); break;
			case 'z': jd = va_arg( va, pawzd ); break;
			case 'v': jd = va_arg( va, pawvd ); break;
			default: jd = va_arg( va, pawd );
			}
		}
		else
		{
			switch ( sig )
			{
			case 'b': base = PAW_BASE2; break;
			case 'o': base = PAW_BASE8; break;
			case 'u': break;
			case 'x': base = PAW_BASE16x; break;
			case 'X': base = PAW_BASE16X; break;
			}

			switch ( mod )
			{
#ifdef PAWLLD_MAX
			case 'L': ju = va_arg( va, pawllu ); break;
#endif
			case 'l': ju = va_arg( va, pawlu ); break;
			case 'j': ju = va_arg( va, pawju ); break;
			case 'z': ju = va_arg( va, pawzu ); break;
			case 'v': ju = va_arg( va, pawvu ); break;
			default: ju = va_arg( va, pawu );
			}
		}

		if ( nosig )
			cfg->len = pawu2s( &(cfg->num), ju, base );
		else
		{
			if ( jd < 0 )
			{
				cfg->sig = "-";
				jd = -jd;
			}
			cfg->len = pawu2s( &(cfg->num), jd, base );
		}

		*size = cfg->len + pawsleng(cfg->pfx) + pawsleng(cfg->sig);
		if ( *size < cfg->min )
			*size = cfg->min;

		return ate;
	}
	*size = sizeof(PAW_PUTF_INT);
	return 0;
}

I'm not seeing where I went wrong, anyone have any ideas?
awsdert (277)
Never mind, fixed it:
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PAW_API pawhhu*	paw_putf_int_nxt( PAWBUF *UDV, pawhhu *udv )
{
	UDV->count++;
	UDV->Slots.taken += (UDV->Slots.split);
	return udv + (UDV->Slots.split);
}

PAW_API pawu	pawInitStringv( PAWS *str, paws args, va_list va )
{
	bool	cont = true;
	PAWBUF	UDV = {{0}};
	PAWVA_TYPE **formats = pawStdFormats;
	pawu	leng = strlen(args);
	pawzu	need = leng;
	PAWVA_DATA _txt = {NULL};
	pawzu	split;
	pawhhu	*udv;
	pawu	i = 0, f, took;
	char	*tmp;
	pawd ate = 0;

	/* Get max ud size */
	for ( f = 0; formats[f]; ++f )
	{
		pawzu size = 0;
		PAWVA_TYPE *F = formats[f];
		F->chk( NULL, &size, NULL, va );
		split = (size > split) ? size : split;
	}

	split += sizeof(_txt);

	/* Assign enough potential UDs that we don't need to reallocate later */
	split += !split;
	udv = pawInitBuffert( &UDV, split, PAW_O_CLEAR_NEW, leng / 2 );
	if ( !udv )
		return 0;

	/* Collect arguments into UDs */
	_txt.str = args + i;
	for ( ; args[i]; ++i )
	{
		char c = args[i], n = args[i+1];
		_txt.end = i;
		if ( c != '%' )
			continue;

		if ( n == '%' || n == '!' )
			_txt.end++;

		if ( _txt.end > _txt.pos )
		{
			memcpy( udv, &_txt, sizeof(_txt) );
			udv = paw_putf_int_nxt( &UDV, udv );
		}

		_txt.end++;
		_txt.pos = _txt.end;
		_txt.str = args + _txt.end;

		/* Check if we're using internal or external specifiers */
		if ( n == '%' || n == '!' )
		{
			++i;
			if ( n == '!' )
				formats = va_arg( va, PAWVA_TYPE** );
			continue;
		}

		for ( f = 0; formats[f]; ++f )
		{
			PAWVA_DATA *txt = (PAWVA_DATA*)udv;
			PAWVA_TYPE *F = formats[f];
			pawzu size = 0;
			pawd ate;
			memset( udv, 0, split );
			ate = F->chk( txt + 1, &size, args + i, va );
			if ( ate < 0 )
				continue;
			udv = paw_putf_int_nxt( &UDV, udv );
			txt->str = (char*)F;
			need += size;
			i += ate;
			break;
		}

		assert( formats[f] );
	}

	if ( _txt.end > _txt.pos )
	{
		memcpy( udv, &_txt, sizeof(_txt) );
		udv = paw_putf_int_nxt( &UDV, udv );
	}

	tmp = pawInitStringz( str, need );
	if ( !tmp )
	{
		pawTermBuffer( &UDV );
		return 0;
	}

	/* Use collected UDs */
	udv = pawSeekBufferHead( &UDV );
	for ( i = 0; i < UDV.count; ++i, udv += split )
	{
		PAWVA_DATA *txt = (PAWVA_DATA*)udv;
		if ( txt->end > txt->pos )
			pawJoinStringn( str, txt->str, txt->end - txt->pos );
		else
		{
			PAWVA_TYPE *F = ((PAWVA_TYPE*)(txt->str));
			F->use( txt + 1, str );
		}
	}

	/* Put generated string where it belongs */
	pawTermBuffer( &UDV );
	return took;
}
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