Some formatting updates (ran the code through indent)

 -Erik

1 files changed, 292 insertions, 340 deletions

diff --git a/printf.c b/printf.c
index 5fd5ea3..41ab2e4 100644
--- a/printf.c
+++ b/printf.c
@@ -1,3 +1,4 @@
+/* vi: set sw=4 ts=4: */
 /* printf - format and print data
    Copyright (C) 90, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
 
@@ -42,7 +43,7 @@
    to convert all of the given arguments.
 
    David MacKenzie <djm@gnu.ai.mit.edu> */
-   
+
 
 //   19990508 Busy Boxed! Dave Cinege
 
@@ -84,11 +85,11 @@
 #if !defined(S_ISSOCK) && defined(S_IFSOCK)
 # define	S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
 #endif
-#if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
+#if !defined(S_ISMPB) && defined(S_IFMPB)	/* V7 */
 # define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
 # define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
 #endif
-#if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
+#if !defined(S_ISNWK) && defined(S_IFNWK)	/* HP/UX */
 # define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
 #endif
 
@@ -121,407 +122,358 @@
 #define hextobin(c) ((c)>='a'&&(c)<='f' ? (c)-'a'+10 : (c)>='A'&&(c)<='F' ? (c)-'A'+10 : (c)-'0')
 #define octtobin(c) ((c) - '0')
 
-static double xstrtod __P ((char *s));
-static int print_esc __P ((char *escstart));
-static int print_formatted __P ((char *format, int argc, char **argv));
-static long xstrtol __P ((char *s));
-static unsigned long xstrtoul __P ((char *s));
-static void print_direc __P ((char *start, size_t length, int field_width, int precision, char *argument));
-static void print_esc_char __P ((int c));
-static void print_esc_string __P ((char *str));
-static void verify __P ((char *s, char *end));
+static double xstrtod __P((char *s));
+static int print_esc __P((char *escstart));
+static int print_formatted __P((char *format, int argc, char **argv));
+static long xstrtol __P((char *s));
+static unsigned long xstrtoul __P((char *s));
+static void print_direc
+__P(
+
+	(char *start, size_t length, int field_width, int precision,
+	 char *argument));
+static void print_esc_char __P((int c));
+static void print_esc_string __P((char *str));
+static void verify __P((char *s, char *end));
 
 /* The value to return to the calling program.  */
 static int exit_status;
 
-static const char	printf_usage[] = "printf format [argument...]\n";
+static const char printf_usage[] = "printf format [argument...]\n";
 
-int
-printf_main(int argc, char** argv)
+int printf_main(int argc, char **argv)
 {
-  char *format;
-  int args_used;
-
-  exit_status = 0;
-  if ( argc <= 1 || **(argv+1) == '-' ) {
-    usage (printf_usage);
-  }
-
-  format = argv[1];
-  argc -= 2;
-  argv += 2;
-
-  do
-    {
-      args_used = print_formatted (format, argc, argv);
-      argc -= args_used;
-      argv += args_used;
-    }
-  while (args_used > 0 && argc > 0);
+	char *format;
+	int args_used;
+
+	exit_status = 0;
+	if (argc <= 1 || **(argv + 1) == '-') {
+		usage(printf_usage);
+	}
+
+	format = argv[1];
+	argc -= 2;
+	argv += 2;
+
+	do {
+		args_used = print_formatted(format, argc, argv);
+		argc -= args_used;
+		argv += args_used;
+	}
+	while (args_used > 0 && argc > 0);
 
 /*
   if (argc > 0)
     fprintf(stderr, "excess args ignored");
 */
 
-  exit (exit_status);
+	exit(exit_status);
 }
 
 /* Print the text in FORMAT, using ARGV (with ARGC elements) for
    arguments to any `%' directives.
    Return the number of elements of ARGV used.  */
 
-static int
-print_formatted (char *format, int argc, char **argv)
+static int print_formatted(char *format, int argc, char **argv)
 {
-  int save_argc = argc;		/* Preserve original value.  */
-  char *f;			/* Pointer into `format'.  */
-  char *direc_start;		/* Start of % directive.  */
-  size_t direc_length;		/* Length of % directive.  */
-  int field_width;		/* Arg to first '*', or -1 if none.  */
-  int precision;		/* Arg to second '*', or -1 if none.  */
-
-  for (f = format; *f; ++f)
-    {
-      switch (*f)
-	{
-	case '%':
-	  direc_start = f++;
-	  direc_length = 1;
-	  field_width = precision = -1;
-	  if (*f == '%')
-	    {
-	      putchar ('%');
-	      break;
-	    }
-	  if (*f == 'b')
-	    {
-	      if (argc > 0)
-		{
-		  print_esc_string (*argv);
-		  ++argv;
-		  --argc;
-		}
-	      break;
-	    }
-	  if (strchr ("-+ #", *f))
-	    {
-	      ++f;
-	      ++direc_length;
-	    }
-	  if (*f == '*')
-	    {
-	      ++f;
-	      ++direc_length;
-	      if (argc > 0)
-		{
-		  field_width = xstrtoul (*argv);
-		  ++argv;
-		  --argc;
+	int save_argc = argc;		/* Preserve original value.  */
+	char *f;					/* Pointer into `format'.  */
+	char *direc_start;			/* Start of % directive.  */
+	size_t direc_length;		/* Length of % directive.  */
+	int field_width;			/* Arg to first '*', or -1 if none.  */
+	int precision;				/* Arg to second '*', or -1 if none.  */
+
+	for (f = format; *f; ++f) {
+		switch (*f) {
+		case '%':
+			direc_start = f++;
+			direc_length = 1;
+			field_width = precision = -1;
+			if (*f == '%') {
+				putchar('%');
+				break;
+			}
+			if (*f == 'b') {
+				if (argc > 0) {
+					print_esc_string(*argv);
+					++argv;
+					--argc;
+				}
+				break;
+			}
+			if (strchr("-+ #", *f)) {
+				++f;
+				++direc_length;
+			}
+			if (*f == '*') {
+				++f;
+				++direc_length;
+				if (argc > 0) {
+					field_width = xstrtoul(*argv);
+					++argv;
+					--argc;
+				} else
+					field_width = 0;
+			} else
+				while (ISDIGIT(*f)) {
+					++f;
+					++direc_length;
+				}
+			if (*f == '.') {
+				++f;
+				++direc_length;
+				if (*f == '*') {
+					++f;
+					++direc_length;
+					if (argc > 0) {
+						precision = xstrtoul(*argv);
+						++argv;
+						--argc;
+					} else
+						precision = 0;
+				} else
+					while (ISDIGIT(*f)) {
+						++f;
+						++direc_length;
+					}
+			}
+			if (*f == 'l' || *f == 'L' || *f == 'h') {
+				++f;
+				++direc_length;
+			}
+			/*  
+			   if (!strchr ("diouxXfeEgGcs", *f))
+			   fprintf(stderr, "%%%c: invalid directive", *f);
+			 */
+			++direc_length;
+			if (argc > 0) {
+				print_direc(direc_start, direc_length, field_width,
+							precision, *argv);
+				++argv;
+				--argc;
+			} else
+				print_direc(direc_start, direc_length, field_width,
+							precision, "");
+			break;
+
+		case '\\':
+			f += print_esc(f);
+			break;
+
+		default:
+			putchar(*f);
 		}
-	      else
-		field_width = 0;
-	    }
-	  else
-	    while (ISDIGIT (*f))
-	      {
-		++f;
-		++direc_length;
-	      }
-	  if (*f == '.')
-	    {
-	      ++f;
-	      ++direc_length;
-	      if (*f == '*')
-		{
-		  ++f;
-		  ++direc_length;
-		  if (argc > 0)
-		    {
-		      precision = xstrtoul (*argv);
-		      ++argv;
-		      --argc;
-		    }
-		  else
-		    precision = 0;
-		}
-	      else
-		while (ISDIGIT (*f))
-		  {
-		    ++f;
-		    ++direc_length;
-		  }
-	    }
-	  if (*f == 'l' || *f == 'L' || *f == 'h')
-	    {
-	      ++f;
-	      ++direc_length;
-	    }
-	  /*  
-	  if (!strchr ("diouxXfeEgGcs", *f))
-	    fprintf(stderr, "%%%c: invalid directive", *f);
-	  */
-	  ++direc_length;
-	  if (argc > 0)
-	    {
-	      print_direc (direc_start, direc_length, field_width,
-			   precision, *argv);
-	      ++argv;
-	      --argc;
-	    }
-	  else
-	    print_direc (direc_start, direc_length, field_width,
-			 precision, "");
-	  break;
-
-	case '\\':
-	  f += print_esc (f);
-	  break;
-
-	default:
-	  putchar (*f);
 	}
-    }
 
-  return save_argc - argc;
+	return save_argc - argc;
 }
 
 /* Print a \ escape sequence starting at ESCSTART.
    Return the number of characters in the escape sequence
    besides the backslash. */
 
-static int
-print_esc (char *escstart)
+static int print_esc(char *escstart)
 {
-  register char *p = escstart + 1;
-  int esc_value = 0;		/* Value of \nnn escape. */
-  int esc_length;		/* Length of \nnn escape. */
-
-  /* \0ooo and \xhhh escapes have maximum length of 3 chars. */
-  if (*p == 'x')
-    {
-      for (esc_length = 0, ++p;
-	   esc_length < 3 && ISXDIGIT (*p);
-	   ++esc_length, ++p)
-	esc_value = esc_value * 16 + hextobin (*p);
+	register char *p = escstart + 1;
+	int esc_value = 0;			/* Value of \nnn escape. */
+	int esc_length;				/* Length of \nnn escape. */
+
+	/* \0ooo and \xhhh escapes have maximum length of 3 chars. */
+	if (*p == 'x') {
+		for (esc_length = 0, ++p;
+			 esc_length < 3 && ISXDIGIT(*p); ++esc_length, ++p)
+			esc_value = esc_value * 16 + hextobin(*p);
 /*      if (esc_length == 0)
 	fprintf(stderr, "missing hex in esc");
 */
-      putchar (esc_value);
-    }
-  else if (*p == '0')
-    {
-      for (esc_length = 0, ++p;
-	   esc_length < 3 && isodigit (*p);
-	   ++esc_length, ++p)
-	esc_value = esc_value * 8 + octtobin (*p);
-      putchar (esc_value);
-    }
-  else if (strchr ("\"\\abcfnrtv", *p))
-    print_esc_char (*p++);
+		putchar(esc_value);
+	} else if (*p == '0') {
+		for (esc_length = 0, ++p;
+			 esc_length < 3 && isodigit(*p); ++esc_length, ++p)
+			esc_value = esc_value * 8 + octtobin(*p);
+		putchar(esc_value);
+	} else if (strchr("\"\\abcfnrtv", *p))
+		print_esc_char(*p++);
 /*  else
     fprintf(stderr, "\\%c: invalid esc", *p);
 */
-  return p - escstart - 1;
+	return p - escstart - 1;
 }
 
 /* Output a single-character \ escape.  */
 
-static void
-print_esc_char (int c)
+static void print_esc_char(int c)
 {
-  switch (c)
-    {
-    case 'a':			/* Alert. */
-      putchar (7);
-      break;
-    case 'b':			/* Backspace. */
-      putchar (8);
-      break;
-    case 'c':			/* Cancel the rest of the output. */
-      exit (0);
-      break;
-    case 'f':			/* Form feed. */
-      putchar (12);
-      break;
-    case 'n':			/* New line. */
-      putchar (10);
-      break;
-    case 'r':			/* Carriage return. */
-      putchar (13);
-      break;
-    case 't':			/* Horizontal tab. */
-      putchar (9);
-      break;
-    case 'v':			/* Vertical tab. */
-      putchar (11);
-      break;
-    default:
-      putchar (c);
-      break;
-    }
+	switch (c) {
+	case 'a':					/* Alert. */
+		putchar(7);
+		break;
+	case 'b':					/* Backspace. */
+		putchar(8);
+		break;
+	case 'c':					/* Cancel the rest of the output. */
+		exit(0);
+		break;
+	case 'f':					/* Form feed. */
+		putchar(12);
+		break;
+	case 'n':					/* New line. */
+		putchar(10);
+		break;
+	case 'r':					/* Carriage return. */
+		putchar(13);
+		break;
+	case 't':					/* Horizontal tab. */
+		putchar(9);
+		break;
+	case 'v':					/* Vertical tab. */
+		putchar(11);
+		break;
+	default:
+		putchar(c);
+		break;
+	}
 }
 
 /* Print string STR, evaluating \ escapes. */
 
-static void
-print_esc_string (char *str)
+static void print_esc_string(char *str)
 {
-  for (; *str; str++)
-    if (*str == '\\')
-      str += print_esc (str);
-    else
-      putchar (*str);
+	for (; *str; str++)
+		if (*str == '\\')
+			str += print_esc(str);
+		else
+			putchar(*str);
 }
 
 static void
-print_direc (char *start, size_t length, int field_width, int precision, char *argument)
+print_direc(char *start, size_t length, int field_width, int precision,
+			char *argument)
 {
-  char *p;		/* Null-terminated copy of % directive. */
-
-  p = xmalloc ((unsigned) (length + 1));
-  strncpy (p, start, length);
-  p[length] = 0;
-
-  switch (p[length - 1])
-    {
-    case 'd':
-    case 'i':
-      if (field_width < 0)
-	{
-	  if (precision < 0)
-	    printf (p, xstrtol (argument));
-	  else
-	    printf (p, precision, xstrtol (argument));
-	}
-      else
-	{
-	  if (precision < 0)
-	    printf (p, field_width, xstrtol (argument));
-	  else
-	    printf (p, field_width, precision, xstrtol (argument));
-	}
-      break;
-
-    case 'o':
-    case 'u':
-    case 'x':
-    case 'X':
-      if (field_width < 0)
-	{
-	  if (precision < 0)
-	    printf (p, xstrtoul (argument));
-	  else
-	    printf (p, precision, xstrtoul (argument));
-	}
-      else
-	{
-	  if (precision < 0)
-	    printf (p, field_width, xstrtoul (argument));
-	  else
-	    printf (p, field_width, precision, xstrtoul (argument));
-	}
-      break;
-
-    case 'f':
-    case 'e':
-    case 'E':
-    case 'g':
-    case 'G':
-      if (field_width < 0)
-	{
-	  if (precision < 0)
-	    printf (p, xstrtod (argument));
-	  else
-	    printf (p, precision, xstrtod (argument));
-	}
-      else
-	{
-	  if (precision < 0)
-	    printf (p, field_width, xstrtod (argument));
-	  else
-	    printf (p, field_width, precision, xstrtod (argument));
-	}
-      break;
-
-    case 'c':
-      printf (p, *argument);
-      break;
-
-    case 's':
-      if (field_width < 0)
-	{
-	  if (precision < 0)
-	    printf (p, argument);
-	  else
-	    printf (p, precision, argument);
-	}
-      else
-	{
-	  if (precision < 0)
-	    printf (p, field_width, argument);
-	  else
-	    printf (p, field_width, precision, argument);
+	char *p;					/* Null-terminated copy of % directive. */
+
+	p = xmalloc((unsigned) (length + 1));
+	strncpy(p, start, length);
+	p[length] = 0;
+
+	switch (p[length - 1]) {
+	case 'd':
+	case 'i':
+		if (field_width < 0) {
+			if (precision < 0)
+				printf(p, xstrtol(argument));
+			else
+				printf(p, precision, xstrtol(argument));
+		} else {
+			if (precision < 0)
+				printf(p, field_width, xstrtol(argument));
+			else
+				printf(p, field_width, precision, xstrtol(argument));
+		}
+		break;
+
+	case 'o':
+	case 'u':
+	case 'x':
+	case 'X':
+		if (field_width < 0) {
+			if (precision < 0)
+				printf(p, xstrtoul(argument));
+			else
+				printf(p, precision, xstrtoul(argument));
+		} else {
+			if (precision < 0)
+				printf(p, field_width, xstrtoul(argument));
+			else
+				printf(p, field_width, precision, xstrtoul(argument));
+		}
+		break;
+
+	case 'f':
+	case 'e':
+	case 'E':
+	case 'g':
+	case 'G':
+		if (field_width < 0) {
+			if (precision < 0)
+				printf(p, xstrtod(argument));
+			else
+				printf(p, precision, xstrtod(argument));
+		} else {
+			if (precision < 0)
+				printf(p, field_width, xstrtod(argument));
+			else
+				printf(p, field_width, precision, xstrtod(argument));
+		}
+		break;
+
+	case 'c':
+		printf(p, *argument);
+		break;
+
+	case 's':
+		if (field_width < 0) {
+			if (precision < 0)
+				printf(p, argument);
+			else
+				printf(p, precision, argument);
+		} else {
+			if (precision < 0)
+				printf(p, field_width, argument);
+			else
+				printf(p, field_width, precision, argument);
+		}
+		break;
 	}
-      break;
-    }
 
-  free (p);
+	free(p);
 }
 
-static unsigned long
-xstrtoul (char *s)
+static unsigned long xstrtoul(char *s)
 {
-  char *end;
-  unsigned long val;
+	char *end;
+	unsigned long val;
 
-  errno = 0;
-  val = strtoul (s, &end, 0);
-  verify (s, end);
-  return val;
+	errno = 0;
+	val = strtoul(s, &end, 0);
+	verify(s, end);
+	return val;
 }
 
-static long
-xstrtol (char *s)
+static long xstrtol(char *s)
 {
-  char *end;
-  long val;
+	char *end;
+	long val;
 
-  errno = 0;
-  val = strtol (s, &end, 0);
-  verify (s, end);
-  return val;
+	errno = 0;
+	val = strtol(s, &end, 0);
+	verify(s, end);
+	return val;
 }
 
-static double
-xstrtod (char *s)
+static double xstrtod(char *s)
 {
-  char *end;
-  double val;
+	char *end;
+	double val;
 
-  errno = 0;
-  val = strtod (s, &end);
-  verify (s, end);
-  return val;
+	errno = 0;
+	val = strtod(s, &end);
+	verify(s, end);
+	return val;
 }
 
-static void
-verify (char *s, char *end)
+static void verify(char *s, char *end)
 {
-  if (errno)
-    {
-      fprintf(stderr, "%s", s);
-      exit_status = 1;
-    }
-  else if (*end)
-    {
-    /*
-      if (s == end)
-	fprintf(stderr, "%s: expected numeric", s);
-      else
-	fprintf(stderr, "%s: not completely converted", s);
-    */	
-      exit_status = 1;
-    }
+	if (errno) {
+		fprintf(stderr, "%s", s);
+		exit_status = 1;
+	} else if (*end) {
+		/*
+		   if (s == end)
+		   fprintf(stderr, "%s: expected numeric", s);
+		   else
+		   fprintf(stderr, "%s: not completely converted", s);
+		 */
+		exit_status = 1;
+	}
 }
-