14  * the regex: [0-9]*\.?[0-9]*
40 	if (v < 0) {  in prdec()
48 	digs[i] = 0;  in prdec()
51 		digs[i] = '0' + (v % 10);  in prdec()
57 	while (digs[i] != '\0') {  in prdec()
66 		r->buf[r->idx] = 0;  in endrec()
70 static int vpf(struct _pfr *r, const char *f, va_list ap)  in vpf()  argument
72 	for (/**/; *f != '\0'; f++) {  in vpf()
75 		if (*f != '%') {  in vpf()
76 			pc(r, *f);  in vpf()
80 		if (f[1] == 'l') {  in vpf()
82 			f++;  in vpf()
86 		while (f[1] >= '0' && f[1] <= '9') {  in vpf()
87 			f++;  in vpf()
89 		if (f[1] == '.') {  in vpf()
90 			f++;  in vpf()
92 		while (f[1] >= '0' && f[1] <= '9') {  in vpf()
93 			f++;  in vpf()
96 		switch (*(++f)) {  in vpf()
97 		case 0:  in vpf()
108 			while (*s != '\0') {  in vpf()
115 			pc(r, '0');  in vpf()
119 			int sig = 0;  in vpf()
122 			for (int i = 2*sizeof(long) - 1; i >= 0; i--) {  in vpf()
123 				int d = (v >> (i*4)) & 0xf;  in vpf()
126 				if (sig || i == 0) {  in vpf()
137 			pc(r, *f);  in vpf()
146 	va_start(ap, f);			\
147 	ret = vpf(&r, f, ap);			\
150 static inline int snprintf(char *buf, unsigned long len, const char *f, ...)  in snprintf()  argument
159 static inline int sprintf(char *buf, const char *f, ...)  in sprintf()  argument
162 	struct _pfr r = { .buf = buf, .len = 0x7fffffff };  in sprintf()
168 static inline int printf(const char *f, ...)  in printf()  argument
171 	struct _pfr r = {0};  in printf()