Some formatting updates (ran the code through indent)

-Erik
This commit is contained in:
Erik Andersen
2000-02-08 19:58:47 +00:00
parent c0bf817bbc
commit e49d5ecbbe
163 changed files with 27109 additions and 26607 deletions

608
printf.c
View File

@ -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;
char *format;
int args_used;
exit_status = 0;
if ( argc <= 1 || **(argv+1) == '-' ) {
usage (printf_usage);
}
exit_status = 0;
if (argc <= 1 || **(argv + 1) == '-') {
usage(printf_usage);
}
format = argv[1];
argc -= 2;
argv += 2;
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);
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. */
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;
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;
case '\\':
f += print_esc(f);
break;
default:
putchar (*f);
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. */
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);
/* \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. */
char *p; /* Null-terminated copy of % directive. */
p = xmalloc ((unsigned) (length + 1));
strncpy (p, start, length);
p[length] = 0;
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;
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 '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 '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 'c':
printf(p, *argument);
break;
case 's':
if (field_width < 0)
{
if (precision < 0)
printf (p, argument);
else
printf (p, precision, argument);
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;
}
else
{
if (precision < 0)
printf (p, field_width, argument);
else
printf (p, field_width, precision, argument);
}
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;
}
}