/* * dofmt -- format to a buffer * the number of characters formatted is returned, * or -1 if there was an error. * if the buffer is ever filled, flush is called. * it should reset the buffer and return whether formatting should continue. */ typedef int (*Fmts)(Fmt*); typedef struct Quoteinfo Quoteinfo;struct Quoteinfo{	int	quoted;		/* if set, string must be quoted */	int	nrunesin;	/* number of input runes that can be accepted */	int	nbytesin;	/* number of input bytes that can be accepted */	int	nrunesout;	/* number of runes that will be generated */	int	nbytesout;	/* number of bytes that will be generated */}; /* Edit .+1,/^$/ |cfn |grep -v static | grep __ */double       __Inf(int sign);double       __NaN(void);int          __badfmt(Fmt *f);int          __charfmt(Fmt *f);int          __countfmt(Fmt *f);int          __efgfmt(Fmt *fmt);int          __errfmt(Fmt *f);int          __flagfmt(Fmt *f);int          __fmtFdFlush(Fmt *f);int          __fmtcpy(Fmt *f, const void *vm, int n, int sz);void*        __fmtdispatch(Fmt *f, void *fmt, int isrunes);void *       __fmtflush(Fmt *f, void *t, int len);void         __fmtlock(void);int          __fmtpad(Fmt *f, int n);double       __fmtpow10(int n);int          __fmtrcpy(Fmt *f, const void *vm, int n);void         __fmtunlock(void);int          __ifmt(Fmt *f);int          __isInf(double d, int sign);int          __isNaN(double d);int          __needsquotes(char *s, int *quotelenp);int          __percentfmt(Fmt *f);void         __quotesetup(char *s, Rune *r, int nin, int nout, Quoteinfo *q, int sharp, int runesout);int          __quotestrfmt(int runesin, Fmt *f);int          __rfmtpad(Fmt *f, int n);int          __runefmt(Fmt *f);int          __runeneedsquotes(Rune *r, int *quotelenp);int          __runesfmt(Fmt *f);int          __strfmt(Fmt *f); #define FMTCHAR(f, t, s, c)\	do{\	if(t + 1 > (char*)s){\		t = __fmtflush(f, t, 1);\		if(t != nil)\			s = f->stop;\		else\			return -1;\	}\	*t++ = c;\	}while(0) #define FMTRCHAR(f, t, s, c)\	do{\	if(t + 1 > (Rune*)s){\		t = __fmtflush(f, t, sizeof(Rune));\		if(t != nil)\			s = f->stop;\		else\			return -1;\	}\	*t++ = c;\	}while(0) #define FMTRUNE(f, t, s, r)\	do{\	Rune _rune;\	int _runelen;\	if(t + UTFmax > (char*)s && t + (_runelen = runelen(r)) > (char*)s){\		t = __fmtflush(f, t, _runelen);\		if(t != nil)\			s = f->stop;\		else\			return -1;\	}\	if(r < Runeself)\		*t++ = r;\	else{\		_rune = r;\		t += runetochar(t, &_rune);\	}\	}while(0) #ifdef va_copy#	define VA_COPY(a,b) va_copy(a,b)#	define VA_END(a) va_end(a)#else#	define VA_COPY(a,b) (a) = (b)#	define VA_END(a)#endif #define PLAN9PORT