Merge "clang-format the printf/scanf implementation."

am: c905afa1f2

Change-Id: I92ccb3c4c7602afc637976791d1f7f9a9890c281

1 files changed, 1317 insertions, 1365 deletions

diff --git a/libc/stdio/vfprintf.c b/libc/stdio/vfprintf.c
index da7473564d..5713b44067 100644
--- a/libc/stdio/vfprintf.c
+++ b/libc/stdio/vfprintf.c
@@ -37,73 +37,70 @@
  * This code is large and complicated...
  */
 
-#include <sys/types.h>
 #include <sys/mman.h>
+#include <sys/types.h>
 
 #include <errno.h>
 #include <langinfo.h>
 #include <limits.h>
 #include <stdarg.h>
 #include <stddef.h>
-#include <stdio.h>
 #include <stdint.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 #include <wchar.h>
 
-#include "local.h"
 #include "fvwrite.h"
+#include "local.h"
 
 union arg {
-	int			intarg;
-	unsigned int		uintarg;
-	long			longarg;
-	unsigned long		ulongarg;
-	long long		longlongarg;
-	unsigned long long	ulonglongarg;
-	ptrdiff_t		ptrdiffarg;
-	size_t			sizearg;
-	ssize_t			ssizearg;
-	intmax_t		intmaxarg;
-	uintmax_t		uintmaxarg;
-	void			*pvoidarg;
-	char			*pchararg;
-	signed char		*pschararg;
-	short			*pshortarg;
-	int			*pintarg;
-	long			*plongarg;
-	long long		*plonglongarg;
-	ptrdiff_t		*pptrdiffarg;
-	ssize_t			*pssizearg;
-	intmax_t		*pintmaxarg;
-	double			doublearg;
-	long double		longdoublearg;
-	wint_t			wintarg;
-	wchar_t			*pwchararg;
+  int intarg;
+  unsigned int uintarg;
+  long longarg;
+  unsigned long ulongarg;
+  long long longlongarg;
+  unsigned long long ulonglongarg;
+  ptrdiff_t ptrdiffarg;
+  size_t sizearg;
+  ssize_t ssizearg;
+  intmax_t intmaxarg;
+  uintmax_t uintmaxarg;
+  void* pvoidarg;
+  char* pchararg;
+  signed char* pschararg;
+  short* pshortarg;
+  int* pintarg;
+  long* plongarg;
+  long long* plonglongarg;
+  ptrdiff_t* pptrdiffarg;
+  ssize_t* pssizearg;
+  intmax_t* pintmaxarg;
+  double doublearg;
+  long double longdoublearg;
+  wint_t wintarg;
+  wchar_t* pwchararg;
 };
 
-static int __find_arguments(const char *fmt0, va_list ap, union arg **argtable,
-    size_t *argtablesiz);
-static int __grow_type_table(unsigned char **typetable, int *tablesize);
+static int __find_arguments(const char* fmt0, va_list ap, union arg** argtable, size_t* argtablesiz);
+static int __grow_type_table(unsigned char** typetable, int* tablesize);
 
 /*
  * Flush out all the vectors defined by the given uio,
  * then reset it so that it can be reused.
  */
-static int
-__sprint(FILE *fp, struct __suio *uio)
-{
-	int err;
-
-	if (uio->uio_resid == 0) {
-		uio->uio_iovcnt = 0;
-		return (0);
-	}
-	err = __sfvwrite(fp, uio);
-	uio->uio_resid = 0;
-	uio->uio_iovcnt = 0;
-	return (err);
+static int __sprint(FILE* fp, struct __suio* uio) {
+  int err;
+
+  if (uio->uio_resid == 0) {
+    uio->uio_iovcnt = 0;
+    return (0);
+  }
+  err = __sfvwrite(fp, uio);
+  uio->uio_resid = 0;
+  uio->uio_iovcnt = 0;
+  return (err);
 }
 
 /*
@@ -111,33 +108,29 @@ __sprint(FILE *fp, struct __suio *uio)
  * temporary buffer.  We only work on write-only files; this avoids
  * worries about ungetc buffers and so forth.
  */
-static int
-__sbprintf(FILE *fp, const char *fmt, va_list ap)
-{
-	int ret;
-	FILE fake;
-	struct __sfileext fakeext;
-	unsigned char buf[BUFSIZ];
-
-	_FILEEXT_SETUP(&fake, &fakeext);
-	/* copy the important variables */
-	fake._flags = fp->_flags & ~__SNBF;
-	fake._file = fp->_file;
-	fake._cookie = fp->_cookie;
-	fake._write = fp->_write;
-
-	/* set up the buffer */
-	fake._bf._base = fake._p = buf;
-	fake._bf._size = fake._w = sizeof(buf);
-	fake._lbfsize = 0;	/* not actually used, but Just In Case */
-
-	/* do the work, then copy any error status */
-	ret = __vfprintf(&fake, fmt, ap);
-	if (ret >= 0 && __sflush(&fake))
-		ret = EOF;
-	if (fake._flags & __SERR)
-		fp->_flags |= __SERR;
-	return (ret);
+static int __sbprintf(FILE* fp, const char* fmt, va_list ap) {
+  int ret;
+  FILE fake;
+  struct __sfileext fakeext;
+  unsigned char buf[BUFSIZ];
+
+  _FILEEXT_SETUP(&fake, &fakeext);
+  /* copy the important variables */
+  fake._flags = fp->_flags & ~__SNBF;
+  fake._file = fp->_file;
+  fake._cookie = fp->_cookie;
+  fake._write = fp->_write;
+
+  /* set up the buffer */
+  fake._bf._base = fake._p = buf;
+  fake._bf._size = fake._w = sizeof(buf);
+  fake._lbfsize = 0; /* not actually used, but Just In Case */
+
+  /* do the work, then copy any error status */
+  ret = __vfprintf(&fake, fmt, ap);
+  if (ret >= 0 && __sflush(&fake)) ret = EOF;
+  if (fake._flags & __SERR) fp->_flags |= __SERR;
+  return (ret);
 }
 
 /*
@@ -146,58 +139,50 @@ __sbprintf(FILE *fp, const char *fmt, va_list ap)
  * bytes to output, and also means that we can't assume that the wide char
  * string is null-terminated.
  */
-static char *
-__wcsconv(wchar_t *wcsarg, int prec)
-{
-	mbstate_t mbs;
-	char buf[MB_LEN_MAX];
-	wchar_t *p;
-	char *convbuf;
-	size_t clen, nbytes;
-
-	/* Allocate space for the maximum number of bytes we could output. */
-	if (prec < 0) {
-		memset(&mbs, 0, sizeof(mbs));
-		p = wcsarg;
-		nbytes = wcsrtombs(NULL, (const wchar_t **)&p, 0, &mbs);
-		if (nbytes == (size_t)-1)
-			return (NULL);
-	} else {
-		/*
-		 * Optimisation: if the output precision is small enough,
-		 * just allocate enough memory for the maximum instead of
-		 * scanning the string.
-		 */
-		if (prec < 128)
-			nbytes = prec;
-		else {
-			nbytes = 0;
-			p = wcsarg;
-			memset(&mbs, 0, sizeof(mbs));
-			for (;;) {
-				clen = wcrtomb(buf, *p++, &mbs);
-				if (clen == 0 || clen == (size_t)-1 ||
-				    nbytes + clen > (size_t)prec)
-					break;
-				nbytes += clen;
-			}
-			if (clen == (size_t)-1)
-				return (NULL);
-		}
-	}
-	if ((convbuf = malloc(nbytes + 1)) == NULL)
-		return (NULL);
-
-	/* Fill the output buffer. */
-	p = wcsarg;
-	memset(&mbs, 0, sizeof(mbs));
-	if ((nbytes = wcsrtombs(convbuf, (const wchar_t **)&p,
-	    nbytes, &mbs)) == (size_t)-1) {
-		free(convbuf);
-		return (NULL);
-	}
-	convbuf[nbytes] = '\0';
-	return (convbuf);
+static char* __wcsconv(wchar_t* wcsarg, int prec) {
+  mbstate_t mbs;
+  char buf[MB_LEN_MAX];
+  wchar_t* p;
+  char* convbuf;
+  size_t clen, nbytes;
+
+  /* Allocate space for the maximum number of bytes we could output. */
+  if (prec < 0) {
+    memset(&mbs, 0, sizeof(mbs));
+    p = wcsarg;
+    nbytes = wcsrtombs(NULL, (const wchar_t**)&p, 0, &mbs);
+    if (nbytes == (size_t)-1) return (NULL);
+  } else {
+    /*
+     * Optimisation: if the output precision is small enough,
+     * just allocate enough memory for the maximum instead of
+     * scanning the string.
+     */
+    if (prec < 128)
+      nbytes = prec;
+    else {
+      nbytes = 0;
+      p = wcsarg;
+      memset(&mbs, 0, sizeof(mbs));
+      for (;;) {
+        clen = wcrtomb(buf, *p++, &mbs);
+        if (clen == 0 || clen == (size_t)-1 || nbytes + clen > (size_t)prec) break;
+        nbytes += clen;
+      }
+      if (clen == (size_t)-1) return (NULL);
+    }
+  }
+  if ((convbuf = malloc(nbytes + 1)) == NULL) return (NULL);
+
+  /* Fill the output buffer. */
+  p = wcsarg;
+  memset(&mbs, 0, sizeof(mbs));
+  if ((nbytes = wcsrtombs(convbuf, (const wchar_t**)&p, nbytes, &mbs)) == (size_t)-1) {
+    free(convbuf);
+    return (NULL);
+  }
+  convbuf[nbytes] = '\0';
+  return (convbuf);
 }
 
 #include <float.h>
@@ -206,9 +191,9 @@ __wcsconv(wchar_t *wcsarg, int prec)
 #include "floatio.h"
 #include "gdtoa.h"
 
-#define	DEFPREC		6
+#define DEFPREC 6
 
-static int exponent(char *, int, int);
+static int exponent(char*, int, int);
 
 /*
  * The size of the buffer we use as scratch space for integer
@@ -217,883 +202,849 @@ static int exponent(char *, int, int);
  * characters between each pair of digits.  100 bytes is a
  * conservative overestimate even for a 128-bit uintmax_t.
  */
-#define BUF	100
-
-#define STATIC_ARG_TBL_SIZE 8	/* Size of static argument table. */
+#define BUF 100
 
+#define STATIC_ARG_TBL_SIZE 8 /* Size of static argument table. */
 
 /*
  * Macros for converting digits to letters and vice versa
  */
-#define	to_digit(c)	((c) - '0')
-#define is_digit(c)	((unsigned)to_digit(c) <= 9)
-#define	to_char(n)	((n) + '0')
+#define to_digit(c) ((c) - '0')
+#define is_digit(c) ((unsigned)to_digit(c) <= 9)
+#define to_char(n) ((n) + '0')
 
 /*
  * Flags used during conversion.
  */
-#define	ALT		0x0001		/* alternate form */
-#define	LADJUST		0x0004		/* left adjustment */
-#define	LONGDBL		0x0008		/* long double */
-#define	LONGINT		0x0010		/* long integer */
-#define	LLONGINT	0x0020		/* long long integer */
-#define	SHORTINT	0x0040		/* short integer */
-#define	ZEROPAD		0x0080		/* zero (as opposed to blank) pad */
-#define FPT		0x0100		/* Floating point number */
-#define PTRINT		0x0200		/* (unsigned) ptrdiff_t */
-#define SIZEINT		0x0400		/* (signed) size_t */
-#define CHARINT		0x0800		/* 8 bit integer */
-#define MAXINT		0x1000		/* largest integer size (intmax_t) */
-
-int
-vfprintf(FILE *fp, const char *fmt0, __va_list ap)
-{
-	int ret;
-
-	FLOCKFILE(fp);
-	ret = __vfprintf(fp, fmt0, ap);
-	FUNLOCKFILE(fp);
-	return (ret);
+#define ALT 0x0001      /* alternate form */
+#define LADJUST 0x0004  /* left adjustment */
+#define LONGDBL 0x0008  /* long double */
+#define LONGINT 0x0010  /* long integer */
+#define LLONGINT 0x0020 /* long long integer */
+#define SHORTINT 0x0040 /* short integer */
+#define ZEROPAD 0x0080  /* zero (as opposed to blank) pad */
+#define FPT 0x0100      /* Floating point number */
+#define PTRINT 0x0200   /* (unsigned) ptrdiff_t */
+#define SIZEINT 0x0400  /* (signed) size_t */
+#define CHARINT 0x0800  /* 8 bit integer */
+#define MAXINT 0x1000   /* largest integer size (intmax_t) */
+
+int vfprintf(FILE* fp, const char* fmt0, __va_list ap) {
+  int ret;
+
+  FLOCKFILE(fp);
+  ret = __vfprintf(fp, fmt0, ap);
+  FUNLOCKFILE(fp);
+  return (ret);
 }
 DEF_STRONG(vfprintf);
 
-int
-__vfprintf(FILE *fp, const char *fmt0, __va_list ap)
-{
-	char *fmt;		/* format string */
-	int ch;			/* character from fmt */
-	int n, n2;		/* handy integers (short term usage) */
-	char *cp;		/* handy char pointer (short term usage) */
-	struct __siov *iovp;	/* for PRINT macro */
-	int flags;		/* flags as above */
-	int ret;		/* return value accumulator */
-	int width;		/* width from format (%8d), or 0 */
-	int prec;		/* precision from format; <0 for N/A */
-	char sign;		/* sign prefix (' ', '+', '-', or \0) */
-	wchar_t wc;
-	mbstate_t ps;
-	/*
-	 * We can decompose the printed representation of floating
-	 * point numbers into several parts, some of which may be empty:
-	 *
-	 * [+|-| ] [0x|0X] MMM . NNN [e|E|p|P] [+|-] ZZ
-	 *    A       B     ---C---      D       E   F
-	 *
-	 * A:	'sign' holds this value if present; '\0' otherwise
-	 * B:	ox[1] holds the 'x' or 'X'; '\0' if not hexadecimal
-	 * C:	cp points to the string MMMNNN.  Leading and trailing
-	 *	zeros are not in the string and must be added.
-	 * D:	expchar holds this character; '\0' if no exponent, e.g. %f
-	 * F:	at least two digits for decimal, at least one digit for hex
-	 */
-	char *decimal_point = NULL;
-	int signflag;		/* true if float is negative */
-	union {			/* floating point arguments %[aAeEfFgG] */
-		double dbl;
-		long double ldbl;
-	} fparg;
-	int expt;		/* integer value of exponent */
-	char expchar;		/* exponent character: [eEpP\0] */
-	char *dtoaend;		/* pointer to end of converted digits */
-	int expsize;		/* character count for expstr */
-	int lead;		/* sig figs before decimal or group sep */
-	int ndig;		/* actual number of digits returned by dtoa */
-	char expstr[MAXEXPDIG+2];	/* buffer for exponent string: e+ZZZ */
-	char *dtoaresult = NULL;
-
-	uintmax_t _umax;	/* integer arguments %[diouxX] */
-	enum { OCT, DEC, HEX } base;	/* base for %[diouxX] conversion */
-	int dprec;		/* a copy of prec if %[diouxX], 0 otherwise */
-	int realsz;		/* field size expanded by dprec */
-	int size;		/* size of converted field or string */
-	const char *xdigs;	/* digits for %[xX] conversion */
+int __vfprintf(FILE* fp, const char* fmt0, __va_list ap) {
+  char* fmt;           /* format string */
+  int ch;              /* character from fmt */
+  int n, n2;           /* handy integers (short term usage) */
+  char* cp;            /* handy char pointer (short term usage) */
+  struct __siov* iovp; /* for PRINT macro */
+  int flags;           /* flags as above */
+  int ret;             /* return value accumulator */
+  int width;           /* width from format (%8d), or 0 */
+  int prec;            /* precision from format; <0 for N/A */
+  char sign;           /* sign prefix (' ', '+', '-', or \0) */
+  wchar_t wc;
+  mbstate_t ps;
+  /*
+   * We can decompose the printed representation of floating
+   * point numbers into several parts, some of which may be empty:
+   *
+   * [+|-| ] [0x|0X] MMM . NNN [e|E|p|P] [+|-] ZZ
+   *    A       B     ---C---      D       E   F
+   *
+   * A:	'sign' holds this value if present; '\0' otherwise
+   * B:	ox[1] holds the 'x' or 'X'; '\0' if not hexadecimal
+   * C:	cp points to the string MMMNNN.  Leading and trailing
+   *	zeros are not in the string and must be added.
+   * D:	expchar holds this character; '\0' if no exponent, e.g. %f
+   * F:	at least two digits for decimal, at least one digit for hex
+   */
+  char* decimal_point = NULL;
+  int signflag; /* true if float is negative */
+  union {       /* floating point arguments %[aAeEfFgG] */
+    double dbl;
+    long double ldbl;
+  } fparg;
+  int expt;                   /* integer value of exponent */
+  char expchar;               /* exponent character: [eEpP\0] */
+  char* dtoaend;              /* pointer to end of converted digits */
+  int expsize;                /* character count for expstr */
+  int lead;                   /* sig figs before decimal or group sep */
+  int ndig;                   /* actual number of digits returned by dtoa */
+  char expstr[MAXEXPDIG + 2]; /* buffer for exponent string: e+ZZZ */
+  char* dtoaresult = NULL;
+
+  uintmax_t _umax;             /* integer arguments %[diouxX] */
+  enum { OCT, DEC, HEX } base; /* base for %[diouxX] conversion */
+  int dprec;                   /* a copy of prec if %[diouxX], 0 otherwise */
+  int realsz;                  /* field size expanded by dprec */
+  int size;                    /* size of converted field or string */
+  const char* xdigs;           /* digits for %[xX] conversion */
 #define NIOV 8
-	struct __suio uio;	/* output information: summary */
-	struct __siov iov[NIOV];/* ... and individual io vectors */
-	char buf[BUF];		/* buffer with space for digits of uintmax_t */
-	char ox[2];		/* space for 0x; ox[1] is either x, X, or \0 */
-	union arg *argtable;	/* args, built due to positional arg */
-	union arg statargtable[STATIC_ARG_TBL_SIZE];
-	size_t argtablesiz;
-	int nextarg;		/* 1-based argument index */
-	va_list orgap;		/* original argument pointer */
-	char *convbuf;		/* buffer for wide to multi-byte conversion */
-
-	/*
-	 * Choose PADSIZE to trade efficiency vs. size.  If larger printf
-	 * fields occur frequently, increase PADSIZE and make the initialisers
-	 * below longer.
-	 */
-#define	PADSIZE	16		/* pad chunk size */
-	static char blanks[PADSIZE] =
-	 {' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '};
-	static char zeroes[PADSIZE] =
-	 {'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'};
-
-	static const char xdigs_lower[16] = "0123456789abcdef";
-	static const char xdigs_upper[16] = "0123456789ABCDEF";
-
-	/*
-	 * BEWARE, these `goto error' on error, and PAD uses `n'.
-	 */
-#define	PRINT(ptr, len) do { \
-	iovp->iov_base = (ptr); \
-	iovp->iov_len = (len); \
-	uio.uio_resid += (len); \
-	iovp++; \
-	if (++uio.uio_iovcnt >= NIOV) { \
-		if (__sprint(fp, &uio)) \
-			goto error; \
-		iovp = iov; \
-	} \
-} while (0)
-#define	PAD(howmany, with) do { \
-	if ((n = (howmany)) > 0) { \
-		while (n > PADSIZE) { \
-			PRINT(with, PADSIZE); \
-			n -= PADSIZE; \
-		} \
-		PRINT(with, n); \
-	} \
-} while (0)
-#define	PRINTANDPAD(p, ep, len, with) do {	\
-	n2 = (ep) - (p);       			\
-	if (n2 > (len))				\
-		n2 = (len);			\
-	if (n2 > 0)				\
-		PRINT((p), n2);			\
-	PAD((len) - (n2 > 0 ? n2 : 0), (with));	\
-} while(0)
-#define	FLUSH() do { \
-	if (uio.uio_resid && __sprint(fp, &uio)) \
-		goto error; \
-	uio.uio_iovcnt = 0; \
-	iovp = iov; \
-} while (0)
-
-	/*
-	 * To extend shorts properly, we need both signed and unsigned
-	 * argument extraction methods.
-	 */
-#define	SARG() \
-	((intmax_t)(flags&MAXINT ? GETARG(intmax_t) : \
-	    flags&LLONGINT ? GETARG(long long) : \
-	    flags&LONGINT ? GETARG(long) : \
-	    flags&PTRINT ? GETARG(ptrdiff_t) : \
-	    flags&SIZEINT ? GETARG(ssize_t) : \
-	    flags&SHORTINT ? (short)GETARG(int) : \
-	    flags&CHARINT ? (signed char)GETARG(int) : \
-	    GETARG(int)))
-#define	UARG() \
-	((uintmax_t)(flags&MAXINT ? GETARG(uintmax_t) : \
-	    flags&LLONGINT ? GETARG(unsigned long long) : \
-	    flags&LONGINT ? GETARG(unsigned long) : \
-	    flags&PTRINT ? (uintptr_t)GETARG(ptrdiff_t) : /* XXX */ \
-	    flags&SIZEINT ? GETARG(size_t) : \
-	    flags&SHORTINT ? (unsigned short)GETARG(int) : \
-	    flags&CHARINT ? (unsigned char)GETARG(int) : \
-	    GETARG(unsigned int)))
-
-	/*
-	 * Append a digit to a value and check for overflow.
-	 */
-#define APPEND_DIGIT(val, dig) do { \
-	if ((val) > INT_MAX / 10) \
-		goto overflow; \
-	(val) *= 10; \
-	if ((val) > INT_MAX - to_digit((dig))) \
-		goto overflow; \
-	(val) += to_digit((dig)); \
-} while (0)
-
-	 /*
-	  * Get * arguments, including the form *nn$.  Preserve the nextarg
-	  * that the argument can be gotten once the type is determined.
-	  */
-#define GETASTER(val) \
-	n2 = 0; \
-	cp = fmt; \
-	while (is_digit(*cp)) { \
-		APPEND_DIGIT(n2, *cp); \
-		cp++; \
-	} \
-	if (*cp == '$') { \
-		int hold = nextarg; \
-		if (argtable == NULL) { \
-			argtable = statargtable; \
-			if (__find_arguments(fmt0, orgap, &argtable, \
-			    &argtablesiz) == -1) { \
-				ret = -1; \
-				goto error; \
-			} \
-		} \
-		nextarg = n2; \
-		val = GETARG(int); \
-		nextarg = hold; \
-		fmt = ++cp; \
-	} else { \
-		val = GETARG(int); \
-	}
+  struct __suio uio;       /* output information: summary */
+  struct __siov iov[NIOV]; /* ... and individual io vectors */
+  char buf[BUF];           /* buffer with space for digits of uintmax_t */
+  char ox[2];              /* space for 0x; ox[1] is either x, X, or \0 */
+  union arg* argtable;     /* args, built due to positional arg */
+  union arg statargtable[STATIC_ARG_TBL_SIZE];
+  size_t argtablesiz;
+  int nextarg;   /* 1-based argument index */
+  va_list orgap; /* original argument pointer */
+  char* convbuf; /* buffer for wide to multi-byte conversion */
+
+  /*
+   * Choose PADSIZE to trade efficiency vs. size.  If larger printf
+   * fields occur frequently, increase PADSIZE and make the initialisers
+   * below longer.
+   */
+#define PADSIZE 16 /* pad chunk size */
+  static char blanks[PADSIZE] = { ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ',
+                                  ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ' };
+  static char zeroes[PADSIZE] = { '0', '0', '0', '0', '0', '0', '0', '0',
+                                  '0', '0', '0', '0', '0', '0', '0', '0' };
+
+  static const char xdigs_lower[16] = "0123456789abcdef";
+  static const char xdigs_upper[16] = "0123456789ABCDEF";
+
+  /*
+   * BEWARE, these `goto error' on error, and PAD uses `n'.
+   */
+#define PRINT(ptr, len)                   \
+  do {                                    \
+    iovp->iov_base = (ptr);               \
+    iovp->iov_len = (len);                \
+    uio.uio_resid += (len);               \
+    iovp++;                               \
+    if (++uio.uio_iovcnt >= NIOV) {       \
+      if (__sprint(fp, &uio)) goto error; \
+      iovp = iov;                         \
+    }                                     \
+  } while (0)
+#define PAD(howmany, with)     \
+  do {                         \
+    if ((n = (howmany)) > 0) { \
+      while (n > PADSIZE) {    \
+        PRINT(with, PADSIZE);  \
+        n -= PADSIZE;          \
+      }                        \
+      PRINT(with, n);          \
+    }                          \
+  } while (0)
+#define PRINTANDPAD(p, ep, len, with)       \
+  do {                                      \
+    n2 = (ep) - (p);                        \
+    if (n2 > (len)) n2 = (len);             \
+    if (n2 > 0) PRINT((p), n2);             \
+    PAD((len) - (n2 > 0 ? n2 : 0), (with)); \
+  } while (0)
+#define FLUSH()                                          \
+  do {                                                   \
+    if (uio.uio_resid && __sprint(fp, &uio)) goto error; \
+    uio.uio_iovcnt = 0;                                  \
+    iovp = iov;                                          \
+  } while (0)
+
+  /*
+   * To extend shorts properly, we need both signed and unsigned
+   * argument extraction methods.
+   */
+#define SARG()                                                                               \
+  ((intmax_t)(flags & MAXINT                                                                 \
+                  ? GETARG(intmax_t)                                                         \
+                  : flags & LLONGINT                                                         \
+                        ? GETARG(long long)                                                  \
+                        : flags & LONGINT                                                    \
+                              ? GETARG(long)                                                 \
+                              : flags & PTRINT                                               \
+                                    ? GETARG(ptrdiff_t)                                      \
+                                    : flags & SIZEINT                                        \
+                                          ? GETARG(ssize_t)                                  \
+                                          : flags & SHORTINT                                 \
+                                                ? (short)GETARG(int)                         \
+                                                : flags & CHARINT ? (signed char)GETARG(int) \
+                                                                  : GETARG(int)))
+#define UARG()                                                                                \
+  ((uintmax_t)(flags & MAXINT                                                                 \
+                   ? GETARG(uintmax_t)                                                        \
+                   : flags & LLONGINT                                                         \
+                         ? GETARG(unsigned long long)                                         \
+                         : flags & LONGINT                                                    \
+                               ? GETARG(unsigned long)                                        \
+                               : flags & PTRINT ? (uintptr_t)GETARG(ptrdiff_t) : /* XXX */    \
+                                     flags & SIZEINT                                          \
+                                         ? GETARG(size_t)                                     \
+                                         : flags & SHORTINT                                   \
+                                               ? (unsigned short)GETARG(int)                  \
+                                               : flags & CHARINT ? (unsigned char)GETARG(int) \
+                                                                 : GETARG(unsigned int)))
+
+  /*
+   * Append a digit to a value and check for overflow.
+   */
+#define APPEND_DIGIT(val, dig)                            \
+  do {                                                    \
+    if ((val) > INT_MAX / 10) goto overflow;              \
+    (val) *= 10;                                          \
+    if ((val) > INT_MAX - to_digit((dig))) goto overflow; \
+    (val) += to_digit((dig));                             \
+  } while (0)
+
+  /*
+   * Get * arguments, including the form *nn$.  Preserve the nextarg
+   * that the argument can be gotten once the type is determined.
+   */
+#define GETASTER(val)                                                     \
+  n2 = 0;                                                                 \
+  cp = fmt;                                                               \
+  while (is_digit(*cp)) {                                                 \
+    APPEND_DIGIT(n2, *cp);                                                \
+    cp++;                                                                 \
+  }                                                                       \
+  if (*cp == '$') {                                                       \
+    int hold = nextarg;                                                   \
+    if (argtable == NULL) {                                               \
+      argtable = statargtable;                                            \
+      if (__find_arguments(fmt0, orgap, &argtable, &argtablesiz) == -1) { \
+        ret = -1;                                                         \
+        goto error;                                                       \
+      }                                                                   \
+    }                                                                     \
+    nextarg = n2;                                                         \
+    val = GETARG(int);                                                    \
+    nextarg = hold;                                                       \
+    fmt = ++cp;                                                           \
+  } else {                                                                \
+    val = GETARG(int);                                                    \
+  }
 
 /*
-* Get the argument indexed by nextarg.   If the argument table is
-* built, use it to get the argument.  If its not, get the next
-* argument (and arguments must be gotten sequentially).
-*/
+ * Get the argument indexed by nextarg.   If the argument table is
+ * built, use it to get the argument.  If its not, get the next
+ * argument (and arguments must be gotten sequentially).
+ */
 #define GETARG(type) \
-	((argtable != NULL) ? *((type*)(&argtable[nextarg++])) : \
-		(nextarg++, va_arg(ap, type)))
-
-	_SET_ORIENTATION(fp, -1);
-	/* sorry, fprintf(read_only_file, "") returns EOF, not 0 */
-	if (cantwrite(fp)) {
-		errno = EBADF;
-		return (EOF);
-	}
-
-	/* optimise fprintf(stderr) (and other unbuffered Unix files) */
-	if ((fp->_flags & (__SNBF|__SWR|__SRW)) == (__SNBF|__SWR) &&
-	    fp->_file >= 0)
-		return (__sbprintf(fp, fmt0, ap));
-
-	fmt = (char *)fmt0;
-	argtable = NULL;
-	nextarg = 1;
-	va_copy(orgap, ap);
-	uio.uio_iov = iovp = iov;
-	uio.uio_resid = 0;
-	uio.uio_iovcnt = 0;
-	ret = 0;
-	convbuf = NULL;
-
-	memset(&ps, 0, sizeof(ps));
-	/*
-	 * Scan the format for conversions (`%' character).
-	 */
-	for (;;) {
-		cp = fmt;
-		while ((n = mbrtowc(&wc, fmt, MB_CUR_MAX, &ps)) > 0) {
-			fmt += n;
-			if (wc == '%') {
-				fmt--;
-				break;
-			}
-		}
-		if (n < 0) {
-			ret = -1;
-			goto error;
-		}
-		if (fmt != cp) {
-			ptrdiff_t m = fmt - cp;
-			if (m < 0 || m > INT_MAX - ret)
-				goto overflow;
-			PRINT(cp, m);
-			ret += m;
-		}
-		if (n == 0)
-			goto done;
-		fmt++;		/* skip over '%' */
-
-		flags = 0;
-		dprec = 0;
-		width = 0;
-		prec = -1;
-		sign = '\0';
-		ox[1] = '\0';
-
-rflag:		ch = *fmt++;
-reswitch:	switch (ch) {
-		case ' ':
-			/*
-			 * ``If the space and + flags both appear, the space
-			 * flag will be ignored.''
-			 *	-- ANSI X3J11
-			 */
-			if (!sign)
-				sign = ' ';
-			goto rflag;
-		case '#':
-			flags |= ALT;
-			goto rflag;
-		case '\'':
-			/* grouping not implemented */
-			goto rflag;
-		case '*':
-			/*
-			 * ``A negative field width argument is taken as a
-			 * - flag followed by a positive field width.''
-			 *	-- ANSI X3J11
-			 * They don't exclude field widths read from args.
-			 */
-			GETASTER(width);
-			if (width >= 0)
-				goto rflag;
-			if (width == INT_MIN)
-				goto overflow;
-			width = -width;
-			/* FALLTHROUGH */
-		case '-':
-			flags |= LADJUST;
-			goto rflag;
-		case '+':
-			sign = '+';
-			goto rflag;
-		case '.':
-			if ((ch = *fmt++) == '*') {
-				GETASTER(n);
-				prec = n < 0 ? -1 : n;
-				goto rflag;
-			}
-			n = 0;
-			while (is_digit(ch)) {
-				APPEND_DIGIT(n, ch);
-				ch = *fmt++;
-			}
-			if (ch == '$') {
-				nextarg = n;
-				if (argtable == NULL) {
-					argtable = statargtable;
-					if (__find_arguments(fmt0, orgap,
-					    &argtable, &argtablesiz) == -1) {
-						ret = -1;
-						goto error;
-					}
-				}
-				goto rflag;
-			}
-			prec = n;
-			goto reswitch;
-		case '0':
-			/*
-			 * ``Note that 0 is taken as a flag, not as the
-			 * beginning of a field width.''
-			 *	-- ANSI X3J11
-			 */
-			flags |= ZEROPAD;
-			goto rflag;
-		case '1': case '2': case '3': case '4':
-		case '5': case '6': case '7': case '8': case '9':
-			n = 0;
-			do {
-				APPEND_DIGIT(n, ch);
-				ch = *fmt++;
-			} while (is_digit(ch));
-			if (ch == '$') {
-				nextarg = n;
-				if (argtable == NULL) {
-					argtable = statargtable;
-					if (__find_arguments(fmt0, orgap,
-					    &argtable, &argtablesiz) == -1) {
-						ret = -1;
-						goto error;
-					}
-				}
-				goto rflag;
-			}
-			width = n;
-			goto reswitch;
-		case 'L':
-			flags |= LONGDBL;
-			goto rflag;
-		case 'h':
-			if (*fmt == 'h') {
-				fmt++;
-				flags |= CHARINT;
-			} else {
-				flags |= SHORTINT;
-			}
-			goto rflag;
-		case 'j':
-			flags |= MAXINT;
-			goto rflag;
-		case 'l':
-			if (*fmt == 'l') {
-				fmt++;
-				flags |= LLONGINT;
-			} else {
-				flags |= LONGINT;
-			}
-			goto rflag;
-		case 'q':
-			flags |= LLONGINT;
-			goto rflag;
-		case 't':
-			flags |= PTRINT;
-			goto rflag;
-		case 'z':
-			flags |= SIZEINT;
-			goto rflag;
-		case 'c':
-			if (flags & LONGINT) {
-				mbstate_t mbs;
-				size_t mbseqlen;
-
-				memset(&mbs, 0, sizeof(mbs));
-				mbseqlen = wcrtomb(buf,
-				    (wchar_t)GETARG(wint_t), &mbs);
-				if (mbseqlen == (size_t)-1) {
-					ret = -1;
-					goto error;
-				}
-				cp = buf;
-				size = (int)mbseqlen;
-			} else {
-				*(cp = buf) = GETARG(int);
-				size = 1;
-			}
-			sign = '\0';
-			break;
-		case 'D':
-			flags |= LONGINT;
-			/*FALLTHROUGH*/
-		case 'd':
-		case 'i':
-			_umax = SARG();
-			if ((intmax_t)_umax < 0) {
-				_umax = -_umax;
-				sign = '-';
-			}
-			base = DEC;
-			goto number;
-		case 'a':
-		case 'A':
-			if (ch == 'a') {
-				ox[1] = 'x';
-				xdigs = xdigs_lower;
-				expchar = 'p';
-			} else {
-				ox[1] = 'X';
-				xdigs = xdigs_upper;
-				expchar = 'P';
-			}
-			if (prec >= 0)
-				prec++;
-			if (dtoaresult)
-				__freedtoa(dtoaresult);
-			if (flags & LONGDBL) {
-				fparg.ldbl = GETARG(long double);
-				dtoaresult = cp =
-				    __hldtoa(fparg.ldbl, xdigs, prec,
-				    &expt, &signflag, &dtoaend);
-				if (dtoaresult == NULL) {
-					errno = ENOMEM;
-					goto error;
-				}
-			} else {
-				fparg.dbl = GETARG(double);
-				dtoaresult = cp =
-				    __hdtoa(fparg.dbl, xdigs, prec,
-				    &expt, &signflag, &dtoaend);
-				if (dtoaresult == NULL) {
-					errno = ENOMEM;
-					goto error;
-				}
-			}
-			if (prec < 0)
-				prec = dtoaend - cp;
-			if (expt == INT_MAX)
-				ox[1] = '\0';
-			goto fp_common;
-		case 'e':
-		case 'E':
-			expchar = ch;
-			if (prec < 0)	/* account for digit before decpt */
-				prec = DEFPREC + 1;
-			else
-				prec++;
-			goto fp_begin;
-		case 'f':
-		case 'F':
-			expchar = '\0';
-			goto fp_begin;
-		case 'g':
-		case 'G':
-			expchar = ch - ('g' - 'e');
- 			if (prec == 0)
- 				prec = 1;
-fp_begin:
-			if (prec < 0)
-				prec = DEFPREC;
-			if (dtoaresult)
-				__freedtoa(dtoaresult);
-			if (flags & LONGDBL) {
-				fparg.ldbl = GETARG(long double);
-				dtoaresult = cp =
-				    __ldtoa(&fparg.ldbl, expchar ? 2 : 3, prec,
-				    &expt, &signflag, &dtoaend);
-				if (dtoaresult == NULL) {
-					errno = ENOMEM;
-					goto error;
-				}
-			} else {
-				fparg.dbl = GETARG(double);
-				dtoaresult = cp =
-				    __dtoa(fparg.dbl, expchar ? 2 : 3, prec,
-				    &expt, &signflag, &dtoaend);
-				if (dtoaresult == NULL) {
-					errno = ENOMEM;
-					goto error;
-				}
-				if (expt == 9999)
-					expt = INT_MAX;
- 			}
-fp_common:
-			if (signflag)
-				sign = '-';
-			if (expt == INT_MAX) {	/* inf or nan */
-				if (*cp == 'N')
-					cp = (ch >= 'a') ? "nan" : "NAN";
-				else
-					cp = (ch >= 'a') ? "inf" : "INF";
- 				size = 3;
-				flags &= ~ZEROPAD;
- 				break;
- 			}
-			flags |= FPT;
-			ndig = dtoaend - cp;
- 			if (ch == 'g' || ch == 'G') {
-				if (expt > -4 && expt <= prec) {
-					/* Make %[gG] smell like %[fF] */
-					expchar = '\0';
-					if (flags & ALT)
-						prec -= expt;
-					else
-						prec = ndig - expt;
-					if (prec < 0)
-						prec = 0;
-				} else {
-					/*
-					 * Make %[gG] smell like %[eE], but
-					 * trim trailing zeroes if no # flag.
-					 */
-					if (!(flags & ALT))
-						prec = ndig;
-				}
- 			}
-			if (expchar) {
-				expsize = exponent(expstr, expt - 1, expchar);
-				size = expsize + prec;
-				if (prec > 1 || flags & ALT)
- 					++size;
-			} else {
-				/* space for digits before decimal point */
-				if (expt > 0)
-					size = expt;
-				else	/* "0" */
-					size = 1;
-				/* space for decimal pt and following digits */
-				if (prec || flags & ALT)
-					size += prec + 1;
-				lead = expt;
-			}
-			break;
+  ((argtable != NULL) ? *((type*)(&argtable[nextarg++])) : (nextarg++, va_arg(ap, type)))
+
+  _SET_ORIENTATION(fp, -1);
+  /* sorry, fprintf(read_only_file, "") returns EOF, not 0 */
+  if (cantwrite(fp)) {
+    errno = EBADF;
+    return (EOF);
+  }
+
+  /* optimise fprintf(stderr) (and other unbuffered Unix files) */
+  if ((fp->_flags & (__SNBF | __SWR | __SRW)) == (__SNBF | __SWR) && fp->_file >= 0)
+    return (__sbprintf(fp, fmt0, ap));
+
+  fmt = (char*)fmt0;
+  argtable = NULL;
+  nextarg = 1;
+  va_copy(orgap, ap);
+  uio.uio_iov = iovp = iov;
+  uio.uio_resid = 0;
+  uio.uio_iovcnt = 0;
+  ret = 0;
+  convbuf = NULL;
+
+  memset(&ps, 0, sizeof(ps));
+  /*
+   * Scan the format for conversions (`%' character).
+   */
+  for (;;) {
+    cp = fmt;
+    while ((n = mbrtowc(&wc, fmt, MB_CUR_MAX, &ps)) > 0) {
+      fmt += n;
+      if (wc == '%') {
+        fmt--;
+        break;
+      }
+    }
+    if (n < 0) {
+      ret = -1;
+      goto error;
+    }
+    if (fmt != cp) {
+      ptrdiff_t m = fmt - cp;
+      if (m < 0 || m > INT_MAX - ret) goto overflow;
+      PRINT(cp, m);
+      ret += m;
+    }
+    if (n == 0) goto done;
+    fmt++; /* skip over '%' */
+
+    flags = 0;
+    dprec = 0;
+    width = 0;
+    prec = -1;
+    sign = '\0';
+    ox[1] = '\0';
+
+  rflag:
+    ch = *fmt++;
+  reswitch:
+    switch (ch) {
+      case ' ':
+        /*
+         * ``If the space and + flags both appear, the space
+         * flag will be ignored.''
+         *	-- ANSI X3J11
+         */
+        if (!sign) sign = ' ';
+        goto rflag;
+      case '#':
+        flags |= ALT;
+        goto rflag;
+      case '\'':
+        /* grouping not implemented */
+        goto rflag;
+      case '*':
+        /*
+         * ``A negative field width argument is taken as a
+         * - flag followed by a positive field width.''
+         *	-- ANSI X3J11
+         * They don't exclude field widths read from args.
+         */
+        GETASTER(width);
+        if (width >= 0) goto rflag;
+        if (width == INT_MIN) goto overflow;
+        width = -width;
+        /* FALLTHROUGH */
+      case '-':
+        flags |= LADJUST;
+        goto rflag;
+      case '+':
+        sign = '+';
+        goto rflag;
+      case '.':
+        if ((ch = *fmt++) == '*') {
+          GETASTER(n);
+          prec = n < 0 ? -1 : n;
+          goto rflag;
+        }
+        n = 0;
+        while (is_digit(ch)) {
+          APPEND_DIGIT(n, ch);
+          ch = *fmt++;
+        }
+        if (ch == '$') {
+          nextarg = n;
+          if (argtable == NULL) {
+            argtable = statargtable;
+            if (__find_arguments(fmt0, orgap, &argtable, &argtablesiz) == -1) {
+              ret = -1;
+              goto error;
+            }
+          }
+          goto rflag;
+        }
+        prec = n;
+        goto reswitch;
+      case '0':
+        /*
+         * ``Note that 0 is taken as a flag, not as the
+         * beginning of a field width.''
+         *	-- ANSI X3J11
+         */
+        flags |= ZEROPAD;
+        goto rflag;
+      case '1':
+      case '2':
+      case '3':
+      case '4':
+      case '5':
+      case '6':
+      case '7':
+      case '8':
+      case '9':
+        n = 0;
+        do {
+          APPEND_DIGIT(n, ch);
+          ch = *fmt++;
+        } while (is_digit(ch));
+        if (ch == '$') {
+          nextarg = n;
+          if (argtable == NULL) {
+            argtable = statargtable;
+            if (__find_arguments(fmt0, orgap, &argtable, &argtablesiz) == -1) {
+              ret = -1;
+              goto error;
+            }
+          }
+          goto rflag;
+        }
+        width = n;
+        goto reswitch;
+      case 'L':
+        flags |= LONGDBL;
+        goto rflag;
+      case 'h':
+        if (*fmt == 'h') {
+          fmt++;
+          flags |= CHARINT;
+        } else {
+          flags |= SHORTINT;
+        }
+        goto rflag;
+      case 'j':
+        flags |= MAXINT;
+        goto rflag;
+      case 'l':
+        if (*fmt == 'l') {
+          fmt++;
+          flags |= LLONGINT;
+        } else {
+          flags |= LONGINT;
+        }
+        goto rflag;
+      case 'q':
+        flags |= LLONGINT;
+        goto rflag;
+      case 't':
+        flags |= PTRINT;
+        goto rflag;
+      case 'z':
+        flags |= SIZEINT;
+        goto rflag;
+      case 'c':
+        if (flags & LONGINT) {
+          mbstate_t mbs;
+          size_t mbseqlen;
+
+          memset(&mbs, 0, sizeof(mbs));
+          mbseqlen = wcrtomb(buf, (wchar_t)GETARG(wint_t), &mbs);
+          if (mbseqlen == (size_t)-1) {
+            ret = -1;
+            goto error;
+          }
+          cp = buf;
+          size = (int)mbseqlen;
+        } else {
+          *(cp = buf) = GETARG(int);
+          size = 1;
+        }
+        sign = '\0';
+        break;
+      case 'D':
+        flags |= LONGINT;
+        /*FALLTHROUGH*/
+      case 'd':
+      case 'i':
+        _umax = SARG();
+        if ((intmax_t)_umax < 0) {
+          _umax = -_umax;
+          sign = '-';
+        }
+        base = DEC;
+        goto number;
+      case 'a':
+      case 'A':
+        if (ch == 'a') {
+          ox[1] = 'x';
+          xdigs = xdigs_lower;
+          expchar = 'p';
+        } else {
+          ox[1] = 'X';
+          xdigs = xdigs_upper;
+          expchar = 'P';
+        }
+        if (prec >= 0) prec++;
+        if (dtoaresult) __freedtoa(dtoaresult);
+        if (flags & LONGDBL) {
+          fparg.ldbl = GETARG(long double);
+          dtoaresult = cp = __hldtoa(fparg.ldbl, xdigs, prec, &expt, &signflag, &dtoaend);
+          if (dtoaresult == NULL) {
+            errno = ENOMEM;
+            goto error;
+          }
+        } else {
+          fparg.dbl = GETARG(double);
+          dtoaresult = cp = __hdtoa(fparg.dbl, xdigs, prec, &expt, &signflag, &dtoaend);
+          if (dtoaresult == NULL) {
+            errno = ENOMEM;
+            goto error;
+          }
+        }
+        if (prec < 0) prec = dtoaend - cp;
+        if (expt == INT_MAX) ox[1] = '\0';
+        goto fp_common;
+      case 'e':
+      case 'E':
+        expchar = ch;
+        if (prec < 0) /* account for digit before decpt */
+          prec = DEFPREC + 1;
+        else
+          prec++;
+        goto fp_begin;
+      case 'f':
+      case 'F':
+        expchar = '\0';
+        goto fp_begin;
+      case 'g':
+      case 'G':
+        expchar = ch - ('g' - 'e');
+        if (prec == 0) prec = 1;
+      fp_begin:
+        if (prec < 0) prec = DEFPREC;
+        if (dtoaresult) __freedtoa(dtoaresult);
+        if (flags & LONGDBL) {
+          fparg.ldbl = GETARG(long double);
+          dtoaresult = cp = __ldtoa(&fparg.ldbl, expchar ? 2 : 3, prec, &expt, &signflag, &dtoaend);
+          if (dtoaresult == NULL) {
+            errno = ENOMEM;
+            goto error;
+          }
+        } else {
+          fparg.dbl = GETARG(double);
+          dtoaresult = cp = __dtoa(fparg.dbl, expchar ? 2 : 3, prec, &expt, &signflag, &dtoaend);
+          if (dtoaresult == NULL) {
+            errno = ENOMEM;
+            goto error;
+          }
+          if (expt == 9999) expt = INT_MAX;
+        }
+      fp_common:
+        if (signflag) sign = '-';
+        if (expt == INT_MAX) { /* inf or nan */
+          if (*cp == 'N')
+            cp = (ch >= 'a') ? "nan" : "NAN";
+          else
+            cp = (ch >= 'a') ? "inf" : "INF";
+          size = 3;
+          flags &= ~ZEROPAD;
+          break;
+        }
+        flags |= FPT;
+        ndig = dtoaend - cp;
+        if (ch == 'g' || ch == 'G') {
+          if (expt > -4 && expt <= prec) {
+            /* Make %[gG] smell like %[fF] */
+            expchar = '\0';
+            if (flags & ALT)
+              prec -= expt;
+            else
+              prec = ndig - expt;
+            if (prec < 0) prec = 0;
+          } else {
+            /*
+             * Make %[gG] smell like %[eE], but
+             * trim trailing zeroes if no # flag.
+             */
+            if (!(flags & ALT)) prec = ndig;
+          }
+        }
+        if (expchar) {
+          expsize = exponent(expstr, expt - 1, expchar);
+          size = expsize + prec;
+          if (prec > 1 || flags & ALT) ++size;
+        } else {
+          /* space for digits before decimal point */
+          if (expt > 0)
+            size = expt;
+          else /* "0" */
+            size = 1;
+          /* space for decimal pt and following digits */
+          if (prec || flags & ALT) size += prec + 1;
+          lead = expt;
+        }
+        break;
 #ifndef NO_PRINTF_PERCENT_N
-		case 'n':
-			if (flags & LLONGINT)
-				*GETARG(long long *) = ret;
-			else if (flags & LONGINT)
-				*GETARG(long *) = ret;
-			else if (flags & SHORTINT)
-				*GETARG(short *) = ret;
-			else if (flags & CHARINT)
-				*GETARG(signed char *) = ret;
-			else if (flags & PTRINT)
-				*GETARG(ptrdiff_t *) = ret;
-			else if (flags & SIZEINT)
-				*GETARG(ssize_t *) = ret;
-			else if (flags & MAXINT)
-				*GETARG(intmax_t *) = ret;
-			else
-				*GETARG(int *) = ret;
-			continue;	/* no output */
-#endif /* NO_PRINTF_PERCENT_N */
-		case 'O':
-			flags |= LONGINT;
-			/*FALLTHROUGH*/
-		case 'o':
-			_umax = UARG();
-			base = OCT;
-			goto nosign;
-		case 'p':
-			/*
-			 * ``The argument shall be a pointer to void.  The
-			 * value of the pointer is converted to a sequence
-			 * of printable characters, in an implementation-
-			 * defined manner.''
-			 *	-- ANSI X3J11
-			 */
-			_umax = (u_long)GETARG(void *);
-			base = HEX;
-			xdigs = xdigs_lower;
-			ox[1] = 'x';
-			goto nosign;
-		case 's':
-			if (flags & LONGINT) {
-				wchar_t *wcp;
-
-				free(convbuf);
-				convbuf = NULL;
-				if ((wcp = GETARG(wchar_t *)) == NULL) {
-					cp = "(null)";
-				} else {
-					convbuf = __wcsconv(wcp, prec);
-					if (convbuf == NULL) {
-						ret = -1;
-						goto error;
-					}
-					cp = convbuf;
-				}
-			} else
-			if ((cp = GETARG(char *)) == NULL)
-				cp = "(null)";
-			if (prec >= 0) {
-				/*
-				 * can't use strlen; can only look for the
-				 * NUL in the first `prec' characters, and
-				 * strlen() will go further.
-				 */
-				char *p = memchr(cp, 0, prec);
-
-				size = p ? (p - cp) : prec;
-			} else {
-				size_t len;
-
-				if ((len = strlen(cp)) > INT_MAX)
-					goto overflow;
-				size = (int)len;
-			}
-			sign = '\0';
-			break;
-		case 'U':
-			flags |= LONGINT;
-			/*FALLTHROUGH*/
-		case 'u':
-			_umax = UARG();
-			base = DEC;
-			goto nosign;
-		case 'X':
-			xdigs = xdigs_upper;
-			goto hex;
-		case 'x':
-			xdigs = xdigs_lower;
-hex:			_umax = UARG();
-			base = HEX;
-			/* leading 0x/X only if non-zero */
-			if (flags & ALT && _umax != 0)
-				ox[1] = ch;
-
-			/* unsigned conversions */
-nosign:			sign = '\0';
-			/*
-			 * ``... diouXx conversions ... if a precision is
-			 * specified, the 0 flag will be ignored.''
-			 *	-- ANSI X3J11
-			 */
-number:			if ((dprec = prec) >= 0)
-				flags &= ~ZEROPAD;
-
-			/*
-			 * ``The result of converting a zero value with an
-			 * explicit precision of zero is no characters.''
-			 *	-- ANSI X3J11
-			 */
-			cp = buf + BUF;
-			if (_umax != 0 || prec != 0) {
-				/*
-				 * Unsigned mod is hard, and unsigned mod
-				 * by a constant is easier than that by
-				 * a variable; hence this switch.
-				 */
-				switch (base) {
-				case OCT:
-					do {
-						*--cp = to_char(_umax & 7);
-						_umax >>= 3;
-					} while (_umax);
-					/* handle octal leading 0 */
-					if (flags & ALT && *cp != '0')
-						*--cp = '0';
-					break;
-
-				case DEC:
-					/* many numbers are 1 digit */
-					while (_umax >= 10) {
-						*--cp = to_char(_umax % 10);
-						_umax /= 10;
-					}
-					*--cp = to_char(_umax);
-					break;
-
-				case HEX:
-					do {
-						*--cp = xdigs[_umax & 15];
-						_umax >>= 4;
-					} while (_umax);
-					break;
-
-				default:
-					cp = "bug in vfprintf: bad base";
-					size = strlen(cp);
-					goto skipsize;
-				}
-			}
-			size = buf + BUF - cp;
-			if (size > BUF)	/* should never happen */
-				abort();
-		skipsize:
-			break;
-		default:	/* "%?" prints ?, unless ? is NUL */
-			if (ch == '\0')
-				goto done;
-			/* pretend it was %c with argument ch */
-			cp = buf;
-			*cp = ch;
-			size = 1;
-			sign = '\0';
-			break;
-		}
-
-		/*
-		 * All reasonable formats wind up here.  At this point, `cp'
-		 * points to a string which (if not flags&LADJUST) should be
-		 * padded out to `width' places.  If flags&ZEROPAD, it should
-		 * first be prefixed by any sign or other prefix; otherwise,
-		 * it should be blank padded before the prefix is emitted.
-		 * After any left-hand padding and prefixing, emit zeroes
-		 * required by a decimal %[diouxX] precision, then print the
-		 * string proper, then emit zeroes required by any leftover
-		 * floating precision; finally, if LADJUST, pad with blanks.
-		 *
-		 * Compute actual size, so we know how much to pad.
-		 * size excludes decimal prec; realsz includes it.
-		 */
-		realsz = dprec > size ? dprec : size;
-		if (sign)
-			realsz++;
-		if (ox[1])
-			realsz+= 2;
-
-		/* right-adjusting blank padding */
-		if ((flags & (LADJUST|ZEROPAD)) == 0)
-			PAD(width - realsz, blanks);
-
-		/* prefix */
-		if (sign)
-			PRINT(&sign, 1);
-		if (ox[1]) {	/* ox[1] is either x, X, or \0 */
-			ox[0] = '0';
-			PRINT(ox, 2);
-		}
-
-		/* right-adjusting zero padding */
-		if ((flags & (LADJUST|ZEROPAD)) == ZEROPAD)
-			PAD(width - realsz, zeroes);
-
-		/* leading zeroes from decimal precision */
-		PAD(dprec - size, zeroes);
-
-		/* the string or number proper */
-		if ((flags & FPT) == 0) {
-			PRINT(cp, size);
-		} else {	/* glue together f_p fragments */
-			if (decimal_point == NULL)
-				decimal_point = nl_langinfo(RADIXCHAR);
-			if (!expchar) {	/* %[fF] or sufficiently short %[gG] */
-				if (expt <= 0) {
-					PRINT(zeroes, 1);
-					if (prec || flags & ALT)
-						PRINT(decimal_point, 1);
-					PAD(-expt, zeroes);
-					/* already handled initial 0's */
-					prec += expt;
- 				} else {
-					PRINTANDPAD(cp, dtoaend, lead, zeroes);
-					cp += lead;
-					if (prec || flags & ALT)
-						PRINT(decimal_point, 1);
-				}
-				PRINTANDPAD(cp, dtoaend, prec, zeroes);
-			} else {	/* %[eE] or sufficiently long %[gG] */
-				if (prec > 1 || flags & ALT) {
-					buf[0] = *cp++;
-					buf[1] = *decimal_point;
-					PRINT(buf, 2);
-					PRINT(cp, ndig-1);
-					PAD(prec - ndig, zeroes);
-				} else { /* XeYYY */
-					PRINT(cp, 1);
-				}
-				PRINT(expstr, expsize);
-			}
-		}
-		/* left-adjusting padding (always blank) */
-		if (flags & LADJUST)
-			PAD(width - realsz, blanks);
-
-		/* finally, adjust ret */
-		if (width < realsz)
-			width = realsz;
-		if (width > INT_MAX - ret)
-			goto overflow;
-		ret += width;
-
-		FLUSH();	/* copy out the I/O vectors */
-	}
+      case 'n':
+        if (flags & LLONGINT)
+          *GETARG(long long*) = ret;
+        else if (flags & LONGINT)
+          *GETARG(long*) = ret;
+        else if (flags & SHORTINT)
+          *GETARG(short*) = ret;
+        else if (flags & CHARINT)
+          *GETARG(signed char*) = ret;
+        else if (flags & PTRINT)
+          *GETARG(ptrdiff_t*) = ret;
+        else if (flags & SIZEINT)
+          *GETARG(ssize_t*) = ret;
+        else if (flags & MAXINT)
+          *GETARG(intmax_t*) = ret;
+        else
+          *GETARG(int*) = ret;
+        continue; /* no output */
+#endif            /* NO_PRINTF_PERCENT_N */
+      case 'O':
+        flags |= LONGINT;
+        /*FALLTHROUGH*/
+      case 'o':
+        _umax = UARG();
+        base = OCT;
+        goto nosign;
+      case 'p':
+        /*
+         * ``The argument shall be a pointer to void.  The
+         * value of the pointer is converted to a sequence
+         * of printable characters, in an implementation-
+         * defined manner.''
+         *	-- ANSI X3J11
+         */
+        _umax = (u_long)GETARG(void*);
+        base = HEX;
+        xdigs = xdigs_lower;
+        ox[1] = 'x';
+        goto nosign;
+      case 's':
+        if (flags & LONGINT) {
+          wchar_t* wcp;
+
+          free(convbuf);
+          convbuf = NULL;
+          if ((wcp = GETARG(wchar_t*)) == NULL) {
+            cp = "(null)";
+          } else {
+            convbuf = __wcsconv(wcp, prec);
+            if (convbuf == NULL) {
+              ret = -1;
+              goto error;
+            }
+            cp = convbuf;
+          }
+        } else if ((cp = GETARG(char*)) == NULL)
+          cp = "(null)";
+        if (prec >= 0) {
+          /*
+           * can't use strlen; can only look for the
+           * NUL in the first `prec' characters, and
+           * strlen() will go further.
+           */
+          char* p = memchr(cp, 0, prec);
+
+          size = p ? (p - cp) : prec;
+        } else {
+          size_t len;
+
+          if ((len = strlen(cp)) > INT_MAX) goto overflow;
+          size = (int)len;
+        }
+        sign = '\0';
+        break;
+      case 'U':
+        flags |= LONGINT;
+        /*FALLTHROUGH*/
+      case 'u':
+        _umax = UARG();
+        base = DEC;
+        goto nosign;
+      case 'X':
+        xdigs = xdigs_upper;
+        goto hex;
+      case 'x':
+        xdigs = xdigs_lower;
+      hex:
+        _umax = UARG();
+        base = HEX;
+        /* leading 0x/X only if non-zero */
+        if (flags & ALT && _umax != 0) ox[1] = ch;
+
+        /* unsigned conversions */
+      nosign:
+        sign = '\0';
+        /*
+         * ``... diouXx conversions ... if a precision is
+         * specified, the 0 flag will be ignored.''
+         *	-- ANSI X3J11
+         */
+      number:
+        if ((dprec = prec) >= 0) flags &= ~ZEROPAD;
+
+        /*
+         * ``The result of converting a zero value with an
+         * explicit precision of zero is no characters.''
+         *	-- ANSI X3J11
+         */
+        cp = buf + BUF;
+        if (_umax != 0 || prec != 0) {
+          /*
+           * Unsigned mod is hard, and unsigned mod
+           * by a constant is easier than that by
+           * a variable; hence this switch.
+           */
+          switch (base) {
+            case OCT:
+              do {
+                *--cp = to_char(_umax & 7);
+                _umax >>= 3;
+              } while (_umax);
+              /* handle octal leading 0 */
+              if (flags & ALT && *cp != '0') *--cp = '0';
+              break;
+
+            case DEC:
+              /* many numbers are 1 digit */
+              while (_umax >= 10) {
+                *--cp = to_char(_umax % 10);
+                _umax /= 10;
+              }
+              *--cp = to_char(_umax);
+              break;
+
+            case HEX:
+              do {
+                *--cp = xdigs[_umax & 15];
+                _umax >>= 4;
+              } while (_umax);
+              break;
+
+            default:
+              cp = "bug in vfprintf: bad base";
+              size = strlen(cp);
+              goto skipsize;
+          }
+        }
+        size = buf + BUF - cp;
+        if (size > BUF) /* should never happen */
+          abort();
+      skipsize:
+        break;
+      default: /* "%?" prints ?, unless ? is NUL */
+        if (ch == '\0') goto done;
+        /* pretend it was %c with argument ch */
+        cp = buf;
+        *cp = ch;
+        size = 1;
+        sign = '\0';
+        break;
+    }
+
+    /*
+     * All reasonable formats wind up here.  At this point, `cp'
+     * points to a string which (if not flags&LADJUST) should be
+     * padded out to `width' places.  If flags&ZEROPAD, it should
+     * first be prefixed by any sign or other prefix; otherwise,
+     * it should be blank padded before the prefix is emitted.
+     * After any left-hand padding and prefixing, emit zeroes
+     * required by a decimal %[diouxX] precision, then print the
+     * string proper, then emit zeroes required by any leftover
+     * floating precision; finally, if LADJUST, pad with blanks.
+     *
+     * Compute actual size, so we know how much to pad.
+     * size excludes decimal prec; realsz includes it.
+     */
+    realsz = dprec > size ? dprec : size;
+    if (sign) realsz++;
+    if (ox[1]) realsz += 2;
+
+    /* right-adjusting blank padding */
+    if ((flags & (LADJUST | ZEROPAD)) == 0) PAD(width - realsz, blanks);
+
+    /* prefix */
+    if (sign) PRINT(&sign, 1);
+    if (ox[1]) { /* ox[1] is either x, X, or \0 */
+      ox[0] = '0';
+      PRINT(ox, 2);
+    }
+
+    /* right-adjusting zero padding */
+    if ((flags & (LADJUST | ZEROPAD)) == ZEROPAD) PAD(width - realsz, zeroes);
+
+    /* leading zeroes from decimal precision */
+    PAD(dprec - size, zeroes);
+
+    /* the string or number proper */
+    if ((flags & FPT) == 0) {
+      PRINT(cp, size);
+    } else { /* glue together f_p fragments */
+      if (decimal_point == NULL) decimal_point = nl_langinfo(RADIXCHAR);
+      if (!expchar) { /* %[fF] or sufficiently short %[gG] */
+        if (expt <= 0) {
+          PRINT(zeroes, 1);
+          if (prec || flags & ALT) PRINT(decimal_point, 1);
+          PAD(-expt, zeroes);
+          /* already handled initial 0's */
+          prec += expt;
+        } else {
+          PRINTANDPAD(cp, dtoaend, lead, zeroes);
+          cp += lead;
+          if (prec || flags & ALT) PRINT(decimal_point, 1);
+        }
+        PRINTANDPAD(cp, dtoaend, prec, zeroes);
+      } else { /* %[eE] or sufficiently long %[gG] */
+        if (prec > 1 || flags & ALT) {
+          buf[0] = *cp++;
+          buf[1] = *decimal_point;
+          PRINT(buf, 2);
+          PRINT(cp, ndig - 1);
+          PAD(prec - ndig, zeroes);
+        } else { /* XeYYY */
+          PRINT(cp, 1);
+        }
+        PRINT(expstr, expsize);
+      }
+    }
+    /* left-adjusting padding (always blank) */
+    if (flags & LADJUST) PAD(width - realsz, blanks);
+
+    /* finally, adjust ret */
+    if (width < realsz) width = realsz;
+    if (width > INT_MAX - ret) goto overflow;
+    ret += width;
+
+    FLUSH(); /* copy out the I/O vectors */
+  }
 done:
-	FLUSH();
+  FLUSH();
 error:
-	va_end(orgap);
-	if (__sferror(fp))
-		ret = -1;
-	goto finish;
+  va_end(orgap);
+  if (__sferror(fp)) ret = -1;
+  goto finish;
 
 overflow:
-	errno = ENOMEM;
-	ret = -1;
+  errno = ENOMEM;
+  ret = -1;
 
 finish:
-	free(convbuf);
-	if (dtoaresult)
-		__freedtoa(dtoaresult);
-	if (argtable != NULL && argtable != statargtable) {
-		munmap(argtable, argtablesiz);
-		argtable = NULL;
-	}
-	return (ret);
+  free(convbuf);
+  if (dtoaresult) __freedtoa(dtoaresult);
+  if (argtable != NULL && argtable != statargtable) {
+    munmap(argtable, argtablesiz);
+    argtable = NULL;
+  }
+  return (ret);
 }
 
 /*
  * Type ids for argument type table.
  */
-#define T_UNUSED	0
-#define T_SHORT		1
-#define T_U_SHORT	2
-#define TP_SHORT	3
-#define T_INT		4
-#define T_U_INT		5
-#define TP_INT		6
-#define T_LONG		7
-#define T_U_LONG	8
-#define TP_LONG		9
-#define T_LLONG		10
-#define T_U_LLONG	11
-#define TP_LLONG	12
-#define T_DOUBLE	13
-#define T_LONG_DOUBLE	14
-#define TP_CHAR		15
-#define TP_VOID		16
-#define T_PTRINT	17
-#define TP_PTRINT	18
-#define T_SIZEINT	19
-#define T_SSIZEINT	20
-#define TP_SSIZEINT	21
-#define T_MAXINT	22
-#define T_MAXUINT	23
-#define TP_MAXINT	24
-#define T_CHAR		25
-#define T_U_CHAR	26
-#define T_WINT		27
-#define TP_WCHAR	28
+#define T_UNUSED 0
+#define T_SHORT 1
+#define T_U_SHORT 2
+#define TP_SHORT 3
+#define T_INT 4
+#define T_U_INT 5
+#define TP_INT 6
+#define T_LONG 7
+#define T_U_LONG 8
+#define TP_LONG 9
+#define T_LLONG 10
+#define T_U_LLONG 11
+#define TP_LLONG 12
+#define T_DOUBLE 13
+#define T_LONG_DOUBLE 14
+#define TP_CHAR 15
+#define TP_VOID 16
+#define T_PTRINT 17
+#define TP_PTRINT 18
+#define T_SIZEINT 19
+#define T_SSIZEINT 20
+#define TP_SSIZEINT 21
+#define T_MAXINT 22
+#define T_MAXUINT 23
+#define TP_MAXINT 24
+#define T_CHAR 25
+#define T_U_CHAR 26
+#define T_WINT 27
+#define TP_WCHAR 28
 
 /*
  * Find all arguments when a positional parameter is encountered.  Returns a
@@ -1103,413 +1054,414 @@ finish:
  * used since we are attempting to make snprintf thread safe, and alloca is
  * problematic since we have nested functions..)
  */
-static int
-__find_arguments(const char *fmt0, va_list ap, union arg **argtable,
-    size_t *argtablesiz)
-{
-	char *fmt;		/* format string */
-	int ch;			/* character from fmt */
-	int n, n2;		/* handy integer (short term usage) */
-	char *cp;		/* handy char pointer (short term usage) */
-	int flags;		/* flags as above */
-	unsigned char *typetable; /* table of types */
-	unsigned char stattypetable[STATIC_ARG_TBL_SIZE];
-	int tablesize;		/* current size of type table */
-	int tablemax;		/* largest used index in table */
-	int nextarg;		/* 1-based argument index */
-	int ret = 0;		/* return value */
-	wchar_t wc;
-	mbstate_t ps;
-
-	/*
-	 * Add an argument type to the table, expanding if necessary.
-	 */
-#define ADDTYPE(type) \
-	((nextarg >= tablesize) ? \
-		__grow_type_table(&typetable, &tablesize) : 0, \
-	(nextarg > tablemax) ? tablemax = nextarg : 0, \
-	typetable[nextarg++] = type)
-
-#define	ADDSARG() \
-        ((flags&MAXINT) ? ADDTYPE(T_MAXINT) : \
-	    ((flags&PTRINT) ? ADDTYPE(T_PTRINT) : \
-	    ((flags&SIZEINT) ? ADDTYPE(T_SSIZEINT) : \
-	    ((flags&LLONGINT) ? ADDTYPE(T_LLONG) : \
-	    ((flags&LONGINT) ? ADDTYPE(T_LONG) : \
-	    ((flags&SHORTINT) ? ADDTYPE(T_SHORT) : \
-	    ((flags&CHARINT) ? ADDTYPE(T_CHAR) : ADDTYPE(T_INT))))))))
-
-#define	ADDUARG() \
-        ((flags&MAXINT) ? ADDTYPE(T_MAXUINT) : \
-	    ((flags&PTRINT) ? ADDTYPE(T_PTRINT) : \
-	    ((flags&SIZEINT) ? ADDTYPE(T_SIZEINT) : \
-	    ((flags&LLONGINT) ? ADDTYPE(T_U_LLONG) : \
-	    ((flags&LONGINT) ? ADDTYPE(T_U_LONG) : \
-	    ((flags&SHORTINT) ? ADDTYPE(T_U_SHORT) : \
-	    ((flags&CHARINT) ? ADDTYPE(T_U_CHAR) : ADDTYPE(T_U_INT))))))))
-
-	/*
-	 * Add * arguments to the type array.
-	 */
-#define ADDASTER() \
-	n2 = 0; \
-	cp = fmt; \
-	while (is_digit(*cp)) { \
-		APPEND_DIGIT(n2, *cp); \
-		cp++; \
-	} \
-	if (*cp == '$') { \
-		int hold = nextarg; \
-		nextarg = n2; \
-		ADDTYPE(T_INT); \
-		nextarg = hold; \
-		fmt = ++cp; \
-	} else { \
-		ADDTYPE(T_INT); \
-	}
-	fmt = (char *)fmt0;
-	typetable = stattypetable;
-	tablesize = STATIC_ARG_TBL_SIZE;
-	tablemax = 0;
-	nextarg = 1;
-	memset(typetable, T_UNUSED, STATIC_ARG_TBL_SIZE);
-	memset(&ps, 0, sizeof(ps));
-
-	/*
-	 * Scan the format for conversions (`%' character).
-	 */
-	for (;;) {
-		cp = fmt;
-		while ((n = mbrtowc(&wc, fmt, MB_CUR_MAX, &ps)) > 0) {
-			fmt += n;
-			if (wc == '%') {
-				fmt--;
-				break;
-			}
-		}
-		if (n < 0)
-			return (-1);
-		if (n == 0)
-			goto done;
-		fmt++;		/* skip over '%' */
-
-		flags = 0;
-
-rflag:		ch = *fmt++;
-reswitch:	switch (ch) {
-		case ' ':
-		case '#':
-		case '\'':
-			goto rflag;
-		case '*':
-			ADDASTER();
-			goto rflag;
-		case '-':
-		case '+':
-			goto rflag;
-		case '.':
-			if ((ch = *fmt++) == '*') {
-				ADDASTER();
-				goto rflag;
-			}
-			while (is_digit(ch)) {
-				ch = *fmt++;
-			}
-			goto reswitch;
-		case '0':
-			goto rflag;
-		case '1': case '2': case '3': case '4':
-		case '5': case '6': case '7': case '8': case '9':
-			n = 0;
-			do {
-				APPEND_DIGIT(n ,ch);
-				ch = *fmt++;
-			} while (is_digit(ch));
-			if (ch == '$') {
-				nextarg = n;
-				goto rflag;
-			}
-			goto reswitch;
-		case 'L':
-			flags |= LONGDBL;
-			goto rflag;
-		case 'h':
-			if (*fmt == 'h') {
-				fmt++;
-				flags |= CHARINT;
-			} else {
-				flags |= SHORTINT;
-			}
-			goto rflag;
-		case 'j':
-			flags |= MAXINT;
-			goto rflag;
-		case 'l':
-			if (*fmt == 'l') {
-				fmt++;
-				flags |= LLONGINT;
-			} else {
-				flags |= LONGINT;
-			}
-			goto rflag;
-		case 'q':
-			flags |= LLONGINT;
-			goto rflag;
-		case 't':
-			flags |= PTRINT;
-			goto rflag;
-		case 'z':
-			flags |= SIZEINT;
-			goto rflag;
-		case 'c':
-			if (flags & LONGINT)
-				ADDTYPE(T_WINT);
-			else
-				ADDTYPE(T_INT);
-			break;
-		case 'D':
-			flags |= LONGINT;
-			/*FALLTHROUGH*/
-		case 'd':
-		case 'i':
-			ADDSARG();
-			break;
-		case 'a':
-		case 'A':
-		case 'e':
-		case 'E':
-		case 'f':
-		case 'F':
-		case 'g':
-		case 'G':
-			if (flags & LONGDBL)
-				ADDTYPE(T_LONG_DOUBLE);
-			else
-				ADDTYPE(T_DOUBLE);
-			break;
+static int __find_arguments(const char* fmt0, va_list ap, union arg** argtable,
+                            size_t* argtablesiz) {
+  char* fmt;                /* format string */
+  int ch;                   /* character from fmt */
+  int n, n2;                /* handy integer (short term usage) */
+  char* cp;                 /* handy char pointer (short term usage) */
+  int flags;                /* flags as above */
+  unsigned char* typetable; /* table of types */
+  unsigned char stattypetable[STATIC_ARG_TBL_SIZE];
+  int tablesize; /* current size of type table */
+  int tablemax;  /* largest used index in table */
+  int nextarg;   /* 1-based argument index */
+  int ret = 0;   /* return value */
+  wchar_t wc;
+  mbstate_t ps;
+
+  /*
+   * Add an argument type to the table, expanding if necessary.
+   */
+#define ADDTYPE(type)                                                      \
+  ((nextarg >= tablesize) ? __grow_type_table(&typetable, &tablesize) : 0, \
+   (nextarg > tablemax) ? tablemax = nextarg : 0, typetable[nextarg++] = type)
+
+#define ADDSARG()                                                                             \
+  ((flags & MAXINT)                                                                           \
+       ? ADDTYPE(T_MAXINT)                                                                    \
+       : ((flags & PTRINT) ? ADDTYPE(T_PTRINT)                                                \
+                           : ((flags & SIZEINT)                                               \
+                                  ? ADDTYPE(T_SSIZEINT)                                       \
+                                  : ((flags & LLONGINT)                                       \
+                                         ? ADDTYPE(T_LLONG)                                   \
+                                         : ((flags & LONGINT)                                 \
+                                                ? ADDTYPE(T_LONG)                             \
+                                                : ((flags & SHORTINT)                         \
+                                                       ? ADDTYPE(T_SHORT)                     \
+                                                       : ((flags & CHARINT) ? ADDTYPE(T_CHAR) \
+                                                                            : ADDTYPE(T_INT))))))))
+
+#define ADDUARG()                                                                  \
+  ((flags & MAXINT)                                                                \
+       ? ADDTYPE(T_MAXUINT)                                                        \
+       : ((flags & PTRINT)                                                         \
+              ? ADDTYPE(T_PTRINT)                                                  \
+              : ((flags & SIZEINT)                                                 \
+                     ? ADDTYPE(T_SIZEINT)                                          \
+                     : ((flags & LLONGINT)                                         \
+                            ? ADDTYPE(T_U_LLONG)                                   \
+                            : ((flags & LONGINT)                                   \
+                                   ? ADDTYPE(T_U_LONG)                             \
+                                   : ((flags & SHORTINT)                           \
+                                          ? ADDTYPE(T_U_SHORT)                     \
+                                          : ((flags & CHARINT) ? ADDTYPE(T_U_CHAR) \
+                                                               : ADDTYPE(T_U_INT))))))))
+
+  /*
+   * Add * arguments to the type array.
+   */
+#define ADDASTER()         \
+  n2 = 0;                  \
+  cp = fmt;                \
+  while (is_digit(*cp)) {  \
+    APPEND_DIGIT(n2, *cp); \
+    cp++;                  \
+  }                        \
+  if (*cp == '$') {        \
+    int hold = nextarg;    \
+    nextarg = n2;          \
+    ADDTYPE(T_INT);        \
+    nextarg = hold;        \
+    fmt = ++cp;            \
+  } else {                 \
+    ADDTYPE(T_INT);        \
+  }
+  fmt = (char*)fmt0;
+  typetable = stattypetable;
+  tablesize = STATIC_ARG_TBL_SIZE;
+  tablemax = 0;
+  nextarg = 1;
+  memset(typetable, T_UNUSED, STATIC_ARG_TBL_SIZE);
+  memset(&ps, 0, sizeof(ps));
+
+  /*
+   * Scan the format for conversions (`%' character).
+   */
+  for (;;) {
+    cp = fmt;
+    while ((n = mbrtowc(&wc, fmt, MB_CUR_MAX, &ps)) > 0) {
+      fmt += n;
+      if (wc == '%') {
+        fmt--;
+        break;
+      }
+    }
+    if (n < 0) return (-1);
+    if (n == 0) goto done;
+    fmt++; /* skip over '%' */
+
+    flags = 0;
+
+  rflag:
+    ch = *fmt++;
+  reswitch:
+    switch (ch) {
+      case ' ':
+      case '#':
+      case '\'':
+        goto rflag;
+      case '*':
+        ADDASTER();
+        goto rflag;
+      case '-':
+      case '+':
+        goto rflag;
+      case '.':
+        if ((ch = *fmt++) == '*') {
+          ADDASTER();
+          goto rflag;
+        }
+        while (is_digit(ch)) {
+          ch = *fmt++;
+        }
+        goto reswitch;
+      case '0':
+        goto rflag;
+      case '1':
+      case '2':
+      case '3':
+      case '4':
+      case '5':
+      case '6':
+      case '7':
+      case '8':
+      case '9':
+        n = 0;
+        do {
+          APPEND_DIGIT(n, ch);
+          ch = *fmt++;
+        } while (is_digit(ch));
+        if (ch == '$') {
+          nextarg = n;
+          goto rflag;
+        }
+        goto reswitch;
+      case 'L':
+        flags |= LONGDBL;
+        goto rflag;
+      case 'h':
+        if (*fmt == 'h') {
+          fmt++;
+          flags |= CHARINT;
+        } else {
+          flags |= SHORTINT;
+        }
+        goto rflag;
+      case 'j':
+        flags |= MAXINT;
+        goto rflag;
+      case 'l':
+        if (*fmt == 'l') {
+          fmt++;
+          flags |= LLONGINT;
+        } else {
+          flags |= LONGINT;
+        }
+        goto rflag;
+      case 'q':
+        flags |= LLONGINT;
+        goto rflag;
+      case 't':
+        flags |= PTRINT;
+        goto rflag;
+      case 'z':
+        flags |= SIZEINT;
+        goto rflag;
+      case 'c':
+        if (flags & LONGINT)
+          ADDTYPE(T_WINT);
+        else
+          ADDTYPE(T_INT);
+        break;
+      case 'D':
+        flags |= LONGINT;
+        /*FALLTHROUGH*/
+      case 'd':
+      case 'i':
+        ADDSARG();
+        break;
+      case 'a':
+      case 'A':
+      case 'e':
+      case 'E':
+      case 'f':
+      case 'F':
+      case 'g':
+      case 'G':
+        if (flags & LONGDBL)
+          ADDTYPE(T_LONG_DOUBLE);
+        else
+          ADDTYPE(T_DOUBLE);
+        break;
 #ifndef NO_PRINTF_PERCENT_N
-		case 'n':
-			if (flags & LLONGINT)
-				ADDTYPE(TP_LLONG);
-			else if (flags & LONGINT)
-				ADDTYPE(TP_LONG);
-			else if (flags & SHORTINT)
-				ADDTYPE(TP_SHORT);
-			else if (flags & PTRINT)
-				ADDTYPE(TP_PTRINT);
-			else if (flags & SIZEINT)
-				ADDTYPE(TP_SSIZEINT);
-			else if (flags & MAXINT)
-				ADDTYPE(TP_MAXINT);
-			else
-				ADDTYPE(TP_INT);
-			continue;	/* no output */
-#endif /* NO_PRINTF_PERCENT_N */
-		case 'O':
-			flags |= LONGINT;
-			/*FALLTHROUGH*/
-		case 'o':
-			ADDUARG();
-			break;
-		case 'p':
-			ADDTYPE(TP_VOID);
-			break;
-		case 's':
-			if (flags & LONGINT)
-				ADDTYPE(TP_WCHAR);
-			else
-				ADDTYPE(TP_CHAR);
-			break;
-		case 'U':
-			flags |= LONGINT;
-			/*FALLTHROUGH*/
-		case 'u':
-		case 'X':
-		case 'x':
-			ADDUARG();
-			break;
-		default:	/* "%?" prints ?, unless ? is NUL */
-			if (ch == '\0')
-				goto done;
-			break;
-		}
-	}
+      case 'n':
+        if (flags & LLONGINT)
+          ADDTYPE(TP_LLONG);
+        else if (flags & LONGINT)
+          ADDTYPE(TP_LONG);
+        else if (flags & SHORTINT)
+          ADDTYPE(TP_SHORT);
+        else if (flags & PTRINT)
+          ADDTYPE(TP_PTRINT);
+        else if (flags & SIZEINT)
+          ADDTYPE(TP_SSIZEINT);
+        else if (flags & MAXINT)
+          ADDTYPE(TP_MAXINT);
+        else
+          ADDTYPE(TP_INT);
+        continue; /* no output */
+#endif            /* NO_PRINTF_PERCENT_N */
+      case 'O':
+        flags |= LONGINT;
+        /*FALLTHROUGH*/
+      case 'o':
+        ADDUARG();
+        break;
+      case 'p':
+        ADDTYPE(TP_VOID);
+        break;
+      case 's':
+        if (flags & LONGINT)
+          ADDTYPE(TP_WCHAR);
+        else
+          ADDTYPE(TP_CHAR);
+        break;
+      case 'U':
+        flags |= LONGINT;
+        /*FALLTHROUGH*/
+      case 'u':
+      case 'X':
+      case 'x':
+        ADDUARG();
+        break;
+      default: /* "%?" prints ?, unless ? is NUL */
+        if (ch == '\0') goto done;
+        break;
+    }
+  }
 done:
-	/*
-	 * Build the argument table.
-	 */
-	if (tablemax >= STATIC_ARG_TBL_SIZE) {
-		*argtablesiz = sizeof(union arg) * (tablemax + 1);
-		*argtable = mmap(NULL, *argtablesiz,
-		    PROT_WRITE|PROT_READ, MAP_ANON|MAP_PRIVATE, -1, 0);
-		if (*argtable == MAP_FAILED)
-			return (-1);
-	}
+  /*
+   * Build the argument table.
+   */
+  if (tablemax >= STATIC_ARG_TBL_SIZE) {
+    *argtablesiz = sizeof(union arg) * (tablemax + 1);
+    *argtable = mmap(NULL, *argtablesiz, PROT_WRITE | PROT_READ, MAP_ANON | MAP_PRIVATE, -1, 0);
+    if (*argtable == MAP_FAILED) return (-1);
+  }
 
 #if 0
 	/* XXX is this required? */
 	(*argtable)[0].intarg = 0;
 #endif
-	for (n = 1; n <= tablemax; n++) {
-		switch (typetable[n]) {
-		case T_UNUSED:
-		case T_CHAR:
-		case T_U_CHAR:
-		case T_SHORT:
-		case T_U_SHORT:
-		case T_INT:
-			(*argtable)[n].intarg = va_arg(ap, int);
-			break;
-		case TP_SHORT:
-			(*argtable)[n].pshortarg = va_arg(ap, short *);
-			break;
-		case T_U_INT:
-			(*argtable)[n].uintarg = va_arg(ap, unsigned int);
-			break;
-		case TP_INT:
-			(*argtable)[n].pintarg = va_arg(ap, int *);
-			break;
-		case T_LONG:
-			(*argtable)[n].longarg = va_arg(ap, long);
-			break;
-		case T_U_LONG:
-			(*argtable)[n].ulongarg = va_arg(ap, unsigned long);
-			break;
-		case TP_LONG:
-			(*argtable)[n].plongarg = va_arg(ap, long *);
-			break;
-		case T_LLONG:
-			(*argtable)[n].longlongarg = va_arg(ap, long long);
-			break;
-		case T_U_LLONG:
-			(*argtable)[n].ulonglongarg = va_arg(ap, unsigned long long);
-			break;
-		case TP_LLONG:
-			(*argtable)[n].plonglongarg = va_arg(ap, long long *);
-			break;
-		case T_DOUBLE:
-			(*argtable)[n].doublearg = va_arg(ap, double);
-			break;
-		case T_LONG_DOUBLE:
-			(*argtable)[n].longdoublearg = va_arg(ap, long double);
-			break;
-		case TP_CHAR:
-			(*argtable)[n].pchararg = va_arg(ap, char *);
-			break;
-		case TP_VOID:
-			(*argtable)[n].pvoidarg = va_arg(ap, void *);
-			break;
-		case T_PTRINT:
-			(*argtable)[n].ptrdiffarg = va_arg(ap, ptrdiff_t);
-			break;
-		case TP_PTRINT:
-			(*argtable)[n].pptrdiffarg = va_arg(ap, ptrdiff_t *);
-			break;
-		case T_SIZEINT:
-			(*argtable)[n].sizearg = va_arg(ap, size_t);
-			break;
-		case T_SSIZEINT:
-			(*argtable)[n].ssizearg = va_arg(ap, ssize_t);
-			break;
-		case TP_SSIZEINT:
-			(*argtable)[n].pssizearg = va_arg(ap, ssize_t *);
-			break;
-		case T_MAXINT:
-			(*argtable)[n].intmaxarg = va_arg(ap, intmax_t);
-			break;
-		case T_MAXUINT:
-			(*argtable)[n].uintmaxarg = va_arg(ap, uintmax_t);
-			break;
-		case TP_MAXINT:
-			(*argtable)[n].pintmaxarg = va_arg(ap, intmax_t *);
-			break;
-		case T_WINT:
-			(*argtable)[n].wintarg = va_arg(ap, wint_t);
-			break;
-		case TP_WCHAR:
-			(*argtable)[n].pwchararg = va_arg(ap, wchar_t *);
-			break;
-		}
-	}
-	goto finish;
+  for (n = 1; n <= tablemax; n++) {
+    switch (typetable[n]) {
+      case T_UNUSED:
+      case T_CHAR:
+      case T_U_CHAR:
+      case T_SHORT:
+      case T_U_SHORT:
+      case T_INT:
+        (*argtable)[n].intarg = va_arg(ap, int);
+        break;
+      case TP_SHORT:
+        (*argtable)[n].pshortarg = va_arg(ap, short*);
+        break;
+      case T_U_INT:
+        (*argtable)[n].uintarg = va_arg(ap, unsigned int);
+        break;
+      case TP_INT:
+        (*argtable)[n].pintarg = va_arg(ap, int*);
+        break;
+      case T_LONG:
+        (*argtable)[n].longarg = va_arg(ap, long);
+        break;
+      case T_U_LONG:
+        (*argtable)[n].ulongarg = va_arg(ap, unsigned long);
+        break;
+      case TP_LONG:
+        (*argtable)[n].plongarg = va_arg(ap, long*);
+        break;
+      case T_LLONG:
+        (*argtable)[n].longlongarg = va_arg(ap, long long);
+        break;
+      case T_U_LLONG:
+        (*argtable)[n].ulonglongarg = va_arg(ap, unsigned long long);
+        break;
+      case TP_LLONG:
+        (*argtable)[n].plonglongarg = va_arg(ap, long long*);
+        break;
+      case T_DOUBLE:
+        (*argtable)[n].doublearg = va_arg(ap, double);
+        break;
+      case T_LONG_DOUBLE:
+        (*argtable)[n].longdoublearg = va_arg(ap, long double);
+        break;
+      case TP_CHAR:
+        (*argtable)[n].pchararg = va_arg(ap, char*);
+        break;
+      case TP_VOID:
+        (*argtable)[n].pvoidarg = va_arg(ap, void*);
+        break;
+      case T_PTRINT:
+        (*argtable)[n].ptrdiffarg = va_arg(ap, ptrdiff_t);
+        break;
+      case TP_PTRINT:
+        (*argtable)[n].pptrdiffarg = va_arg(ap, ptrdiff_t*);
+        break;
+      case T_SIZEINT:
+        (*argtable)[n].sizearg = va_arg(ap, size_t);
+        break;
+      case T_SSIZEINT:
+        (*argtable)[n].ssizearg = va_arg(ap, ssize_t);
+        break;
+      case TP_SSIZEINT:
+        (*argtable)[n].pssizearg = va_arg(ap, ssize_t*);
+        break;
+      case T_MAXINT:
+        (*argtable)[n].intmaxarg = va_arg(ap, intmax_t);
+        break;
+      case T_MAXUINT:
+        (*argtable)[n].uintmaxarg = va_arg(ap, uintmax_t);
+        break;
+      case TP_MAXINT:
+        (*argtable)[n].pintmaxarg = va_arg(ap, intmax_t*);
+        break;
+      case T_WINT:
+        (*argtable)[n].wintarg = va_arg(ap, wint_t);
+        break;
+      case TP_WCHAR:
+        (*argtable)[n].pwchararg = va_arg(ap, wchar_t*);
+        break;
+    }
+  }
+  goto finish;
 
 overflow:
-	errno = ENOMEM;
-	ret = -1;
+  errno = ENOMEM;
+  ret = -1;
 
 finish:
-	if (typetable != NULL && typetable != stattypetable) {
-		munmap(typetable, *argtablesiz);
-		typetable = NULL;
-	}
-	return (ret);
+  if (typetable != NULL && typetable != stattypetable) {
+    munmap(typetable, *argtablesiz);
+    typetable = NULL;
+  }
+  return (ret);
 }
 
 /*
  * Increase the size of the type table.
  */
-static int
-__grow_type_table(unsigned char **typetable, int *tablesize)
-{
-	unsigned char *oldtable = *typetable;
-	int newsize = *tablesize * 2;
-
-	if (newsize < getpagesize())
-		newsize = getpagesize();
-
-	if (*tablesize == STATIC_ARG_TBL_SIZE) {
-		*typetable = mmap(NULL, newsize, PROT_WRITE|PROT_READ,
-		    MAP_ANON|MAP_PRIVATE, -1, 0);
-		if (*typetable == MAP_FAILED)
-			return (-1);
-		bcopy(oldtable, *typetable, *tablesize);
-	} else {
-		unsigned char *new = mmap(NULL, newsize, PROT_WRITE|PROT_READ,
-		    MAP_ANON|MAP_PRIVATE, -1, 0);
-		if (new == MAP_FAILED)
-			return (-1);
-		memmove(new, *typetable, *tablesize);
-		munmap(*typetable, *tablesize);
-		*typetable = new;
-	}
-	memset(*typetable + *tablesize, T_UNUSED, (newsize - *tablesize));
-
-	*tablesize = newsize;
-	return (0);
+static int __grow_type_table(unsigned char** typetable, int* tablesize) {
+  unsigned char* oldtable = *typetable;
+  int newsize = *tablesize * 2;
+
+  if (newsize < getpagesize()) newsize = getpagesize();
+
+  if (*tablesize == STATIC_ARG_TBL_SIZE) {
+    *typetable = mmap(NULL, newsize, PROT_WRITE | PROT_READ, MAP_ANON | MAP_PRIVATE, -1, 0);
+    if (*typetable == MAP_FAILED) return (-1);
+    bcopy(oldtable, *typetable, *tablesize);
+  } else {
+    unsigned char* new = mmap(NULL, newsize, PROT_WRITE | PROT_READ, MAP_ANON | MAP_PRIVATE, -1, 0);
+    if (new == MAP_FAILED) return (-1);
+    memmove(new, *typetable, *tablesize);
+    munmap(*typetable, *tablesize);
+    *typetable = new;
+  }
+  memset(*typetable + *tablesize, T_UNUSED, (newsize - *tablesize));
+
+  *tablesize = newsize;
+  return (0);
 }
 
- 
-static int
-exponent(char *p0, int exp, int fmtch)
-{
-	char *p, *t;
-	char expbuf[MAXEXPDIG];
-
-	p = p0;
-	*p++ = fmtch;
-	if (exp < 0) {
-		exp = -exp;
-		*p++ = '-';
-	} else
-		*p++ = '+';
-	t = expbuf + MAXEXPDIG;
-	if (exp > 9) {
-		do {
-			*--t = to_char(exp % 10);
-		} while ((exp /= 10) > 9);
-		*--t = to_char(exp);
-		for (; t < expbuf + MAXEXPDIG; *p++ = *t++)
-			/* nothing */;
-	} else {
-		/*
-		 * Exponents for decimal floating point conversions
-		 * (%[eEgG]) must be at least two characters long,
-		 * whereas exponents for hexadecimal conversions can
-		 * be only one character long.
-		 */
-		if (fmtch == 'e' || fmtch == 'E')
-			*p++ = '0';
-		*p++ = to_char(exp);
-	}
-	return (p - p0);
+static int exponent(char* p0, int exp, int fmtch) {
+  char *p, *t;
+  char expbuf[MAXEXPDIG];
+
+  p = p0;
+  *p++ = fmtch;
+  if (exp < 0) {
+    exp = -exp;
+    *p++ = '-';
+  } else
+    *p++ = '+';
+  t = expbuf + MAXEXPDIG;
+  if (exp > 9) {
+    do {
+      *--t = to_char(exp % 10);
+    } while ((exp /= 10) > 9);
+    *--t = to_char(exp);
+    for (; t < expbuf + MAXEXPDIG; *p++ = *t++) /* nothing */;
+  } else {
+    /*
+     * Exponents for decimal floating point conversions
+     * (%[eEgG]) must be at least two characters long,
+     * whereas exponents for hexadecimal conversions can
+     * be only one character long.
+     */
+    if (fmtch == 'e' || fmtch == 'E') *p++ = '0';
+    *p++ = to_char(exp);
+  }
+  return (p - p0);
 }