зеркало из https://github.com/github/ruby.git
958 строки
23 KiB
C
958 строки
23 KiB
C
/**********************************************************************
|
|
|
|
sprintf.c -
|
|
|
|
$Author$
|
|
$Date$
|
|
created at: Fri Oct 15 10:39:26 JST 1993
|
|
|
|
Copyright (C) 1993-2007 Yukihiro Matsumoto
|
|
Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
|
|
Copyright (C) 2000 Information-technology Promotion Agency, Japan
|
|
|
|
**********************************************************************/
|
|
|
|
#include "ruby/ruby.h"
|
|
#include "ruby/re.h"
|
|
#include "ruby/encoding.h"
|
|
#include <math.h>
|
|
#include <stdarg.h>
|
|
|
|
#define BIT_DIGITS(N) (((N)*146)/485 + 1) /* log2(10) =~ 146/485 */
|
|
#define BITSPERDIG (SIZEOF_BDIGITS*CHAR_BIT)
|
|
#define EXTENDSIGN(n, l) (((~0 << (n)) >> (((n)*(l)) % BITSPERDIG)) & ~(~0 << (n)))
|
|
|
|
static void fmt_setup(char*,int,int,int,int);
|
|
|
|
static char*
|
|
remove_sign_bits(char *str, int base)
|
|
{
|
|
char *s, *t;
|
|
|
|
s = t = str;
|
|
|
|
if (base == 16) {
|
|
while (*t == 'f') {
|
|
t++;
|
|
}
|
|
}
|
|
else if (base == 8) {
|
|
*t |= EXTENDSIGN(3, strlen(t));
|
|
while (*t == '7') {
|
|
t++;
|
|
}
|
|
}
|
|
else if (base == 2) {
|
|
while (*t == '1') {
|
|
t++;
|
|
}
|
|
}
|
|
if (t > s) {
|
|
while (*t) *s++ = *t++;
|
|
*s = '\0';
|
|
}
|
|
|
|
return str;
|
|
}
|
|
|
|
static char
|
|
sign_bits(int base, const char *p)
|
|
{
|
|
char c = '.';
|
|
|
|
switch (base) {
|
|
case 16:
|
|
if (*p == 'X') c = 'F';
|
|
else c = 'f';
|
|
break;
|
|
case 8:
|
|
c = '7'; break;
|
|
case 2:
|
|
c = '1'; break;
|
|
}
|
|
return c;
|
|
}
|
|
|
|
#define FNONE 0
|
|
#define FSHARP 1
|
|
#define FMINUS 2
|
|
#define FPLUS 4
|
|
#define FZERO 8
|
|
#define FSPACE 16
|
|
#define FWIDTH 32
|
|
#define FPREC 64
|
|
#define FPREC0 128
|
|
|
|
#define CHECK(l) do {\
|
|
while (blen + (l) >= bsiz) {\
|
|
bsiz*=2;\
|
|
}\
|
|
rb_str_resize(result, bsiz);\
|
|
buf = RSTRING_PTR(result);\
|
|
} while (0)
|
|
|
|
#define PUSH(s, l) do { \
|
|
CHECK(l);\
|
|
memcpy(&buf[blen], s, l);\
|
|
blen += (l);\
|
|
} while (0)
|
|
|
|
#define FILL(c, l) do { \
|
|
CHECK(l);\
|
|
memset(&buf[blen], c, l);\
|
|
blen += (l);\
|
|
} while (0)
|
|
|
|
#define GETARG() (nextvalue != Qundef ? nextvalue : \
|
|
posarg < 0 ? \
|
|
(rb_raise(rb_eArgError, "unnumbered(%d) mixed with numbered", nextarg), 0) : \
|
|
(posarg = nextarg++, GETNTHARG(posarg)))
|
|
|
|
#define GETPOSARG(n) (posarg > 0 ? \
|
|
(rb_raise(rb_eArgError, "numbered(%d) after unnumbered(%d)", n, posarg), 0) : \
|
|
((n < 1) ? (rb_raise(rb_eArgError, "invalid index - %d$", n), 0) : \
|
|
(posarg = -1, GETNTHARG(n))))
|
|
|
|
#define GETNTHARG(nth) \
|
|
((nth >= argc) ? (rb_raise(rb_eArgError, "too few arguments"), 0) : argv[nth])
|
|
|
|
#define GETNUM(n, val) \
|
|
for (; p < end && rb_enc_isdigit(*p, enc); p++) { \
|
|
int next_n = 10 * n + (*p - '0'); \
|
|
if (next_n / 10 != n) {\
|
|
rb_raise(rb_eArgError, #val " too big"); \
|
|
} \
|
|
n = next_n; \
|
|
} \
|
|
if (p >= end) { \
|
|
rb_raise(rb_eArgError, "malformed format string - %%*[0-9]"); \
|
|
}
|
|
|
|
#define GETASTER(val) do { \
|
|
t = p++; \
|
|
n = 0; \
|
|
GETNUM(n, val); \
|
|
if (*p == '$') { \
|
|
tmp = GETPOSARG(n); \
|
|
} \
|
|
else { \
|
|
tmp = GETARG(); \
|
|
p = t; \
|
|
} \
|
|
val = NUM2INT(tmp); \
|
|
} while (0)
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* format(format_string [, arguments...] ) => string
|
|
* sprintf(format_string [, arguments...] ) => string
|
|
*
|
|
* Returns the string resulting from applying <i>format_string</i> to
|
|
* any additional arguments. Within the format string, any characters
|
|
* other than format sequences are copied to the result. A format
|
|
* sequence consists of a percent sign, followed by optional flags,
|
|
* width, and precision indicators, then terminated with a field type
|
|
* character. The field type controls how the corresponding
|
|
* <code>sprintf</code> argument is to be interpreted, while the flags
|
|
* modify that interpretation. The field type characters are listed
|
|
* in the table at the end of this section. The flag characters are:
|
|
*
|
|
* Flag | Applies to | Meaning
|
|
* ---------+--------------+-----------------------------------------
|
|
* space | bdeEfgGiouxX | Leave a space at the start of
|
|
* | | positive numbers.
|
|
* ---------+--------------+-----------------------------------------
|
|
* (digit)$ | all | Specifies the absolute argument number
|
|
* | | for this field. Absolute and relative
|
|
* | | argument numbers cannot be mixed in a
|
|
* | | sprintf string.
|
|
* ---------+--------------+-----------------------------------------
|
|
* # | beEfgGoxX | Use an alternative format. For the
|
|
* | | conversions `o', `x', `X', and `b',
|
|
* | | prefix the result with ``0'', ``0x'', ``0X'',
|
|
* | | and ``0b'', respectively. For `e',
|
|
* | | `E', `f', `g', and 'G', force a decimal
|
|
* | | point to be added, even if no digits follow.
|
|
* | | For `g' and 'G', do not remove trailing zeros.
|
|
* ---------+--------------+-----------------------------------------
|
|
* + | bdeEfgGiouxX | Add a leading plus sign to positive numbers.
|
|
* ---------+--------------+-----------------------------------------
|
|
* - | all | Left-justify the result of this conversion.
|
|
* ---------+--------------+-----------------------------------------
|
|
* 0 (zero) | bdeEfgGiouxX | Pad with zeros, not spaces.
|
|
* ---------+--------------+-----------------------------------------
|
|
* * | all | Use the next argument as the field width.
|
|
* | | If negative, left-justify the result. If the
|
|
* | | asterisk is followed by a number and a dollar
|
|
* | | sign, use the indicated argument as the width.
|
|
*
|
|
*
|
|
* The field width is an optional integer, followed optionally by a
|
|
* period and a precision. The width specifies the minimum number of
|
|
* characters that will be written to the result for this field. For
|
|
* numeric fields, the precision controls the number of decimal places
|
|
* displayed. For string fields, the precision determines the maximum
|
|
* number of characters to be copied from the string. (Thus, the format
|
|
* sequence <code>%10.10s</code> will always contribute exactly ten
|
|
* characters to the result.)
|
|
*
|
|
* The field types are:
|
|
*
|
|
* Field | Conversion
|
|
* ------+--------------------------------------------------------------
|
|
* b | Convert argument as a binary number.
|
|
* c | Argument is the numeric code for a single character.
|
|
* d | Convert argument as a decimal number.
|
|
* E | Equivalent to `e', but uses an uppercase E to indicate
|
|
* | the exponent.
|
|
* e | Convert floating point argument into exponential notation
|
|
* | with one digit before the decimal point. The precision
|
|
* | determines the number of fractional digits (defaulting to six).
|
|
* f | Convert floating point argument as [-]ddd.ddd,
|
|
* | where the precision determines the number of digits after
|
|
* | the decimal point.
|
|
* G | Equivalent to `g', but use an uppercase `E' in exponent form.
|
|
* g | Convert a floating point number using exponential form
|
|
* | if the exponent is less than -4 or greater than or
|
|
* | equal to the precision, or in d.dddd form otherwise.
|
|
* i | Identical to `d'.
|
|
* o | Convert argument as an octal number.
|
|
* p | The valuing of argument.inspect.
|
|
* s | Argument is a string to be substituted. If the format
|
|
* | sequence contains a precision, at most that many characters
|
|
* | will be copied.
|
|
* u | Treat argument as an unsigned decimal number. Negative integers
|
|
* | are displayed as a 32 bit two's complement plus one for the
|
|
* | underlying architecture; that is, 2 ** 32 + n. However, since
|
|
* | Ruby has no inherent limit on bits used to represent the
|
|
* | integer, this value is preceded by two dots (..) in order to
|
|
* | indicate a infinite number of leading sign bits.
|
|
* X | Convert argument as a hexadecimal number using uppercase
|
|
* | letters. Negative numbers will be displayed with two
|
|
* | leading periods (representing an infinite string of
|
|
* | leading 'FF's.
|
|
* x | Convert argument as a hexadecimal number.
|
|
* | Negative numbers will be displayed with two
|
|
* | leading periods (representing an infinite string of
|
|
* | leading 'ff's.
|
|
*
|
|
* Examples:
|
|
*
|
|
* sprintf("%d %04x", 123, 123) #=> "123 007b"
|
|
* sprintf("%08b '%4s'", 123, 123) #=> "01111011 ' 123'"
|
|
* sprintf("%1$*2$s %2$d %1$s", "hello", 8) #=> " hello 8 hello"
|
|
* sprintf("%1$*2$s %2$d", "hello", -8) #=> "hello -8"
|
|
* sprintf("%+g:% g:%-g", 1.23, 1.23, 1.23) #=> "+1.23: 1.23:1.23"
|
|
* sprintf("%u", -123) #=> "..4294967173"
|
|
*/
|
|
|
|
VALUE
|
|
rb_f_sprintf(int argc, const VALUE *argv)
|
|
{
|
|
return rb_str_format(argc - 1, argv + 1, GETNTHARG(0));
|
|
}
|
|
|
|
VALUE
|
|
rb_str_format(int argc, const VALUE *argv, VALUE fmt)
|
|
{
|
|
rb_encoding *enc;
|
|
const char *p, *end;
|
|
char *buf;
|
|
int blen, bsiz;
|
|
VALUE result;
|
|
|
|
int width, prec, flags = FNONE;
|
|
int nextarg = 1;
|
|
int posarg = 0;
|
|
int tainted = 0;
|
|
VALUE nextvalue;
|
|
VALUE tmp;
|
|
VALUE str;
|
|
|
|
#define CHECK_FOR_WIDTH(f) \
|
|
if ((f) & FWIDTH) { \
|
|
rb_raise(rb_eArgError, "width given twice"); \
|
|
} \
|
|
if ((f) & FPREC0) { \
|
|
rb_raise(rb_eArgError, "width after precision"); \
|
|
}
|
|
#define CHECK_FOR_FLAGS(f) \
|
|
if ((f) & FWIDTH) { \
|
|
rb_raise(rb_eArgError, "flag after width"); \
|
|
} \
|
|
if ((f) & FPREC0) { \
|
|
rb_raise(rb_eArgError, "flag after precision"); \
|
|
}
|
|
|
|
++argc;
|
|
--argv;
|
|
if (OBJ_TAINTED(fmt)) tainted = 1;
|
|
StringValue(fmt);
|
|
enc = rb_enc_get(fmt);
|
|
fmt = rb_str_new4(fmt);
|
|
p = RSTRING_PTR(fmt);
|
|
end = p + RSTRING_LEN(fmt);
|
|
blen = 0;
|
|
bsiz = 120;
|
|
result = rb_str_buf_new(bsiz);
|
|
buf = RSTRING_PTR(result);
|
|
|
|
for (; p < end; p++) {
|
|
const char *t;
|
|
int n;
|
|
|
|
for (t = p; t < end && *t != '%'; t++) ;
|
|
PUSH(p, t - p);
|
|
if (t >= end) {
|
|
/* end of fmt string */
|
|
goto sprint_exit;
|
|
}
|
|
p = t + 1; /* skip `%' */
|
|
|
|
width = prec = -1;
|
|
nextvalue = Qundef;
|
|
retry:
|
|
switch (*p) {
|
|
default:
|
|
if (rb_enc_isprint(*p, enc))
|
|
rb_raise(rb_eArgError, "malformed format string - %%%c", *p);
|
|
else
|
|
rb_raise(rb_eArgError, "malformed format string");
|
|
break;
|
|
|
|
case ' ':
|
|
CHECK_FOR_FLAGS(flags);
|
|
flags |= FSPACE;
|
|
p++;
|
|
goto retry;
|
|
|
|
case '#':
|
|
CHECK_FOR_FLAGS(flags);
|
|
flags |= FSHARP;
|
|
p++;
|
|
goto retry;
|
|
|
|
case '+':
|
|
CHECK_FOR_FLAGS(flags);
|
|
flags |= FPLUS;
|
|
p++;
|
|
goto retry;
|
|
|
|
case '-':
|
|
CHECK_FOR_FLAGS(flags);
|
|
flags |= FMINUS;
|
|
p++;
|
|
goto retry;
|
|
|
|
case '0':
|
|
CHECK_FOR_FLAGS(flags);
|
|
flags |= FZERO;
|
|
p++;
|
|
goto retry;
|
|
|
|
case '1': case '2': case '3': case '4':
|
|
case '5': case '6': case '7': case '8': case '9':
|
|
n = 0;
|
|
GETNUM(n, width);
|
|
if (*p == '$') {
|
|
if (nextvalue != Qundef) {
|
|
rb_raise(rb_eArgError, "value given twice - %d$", n);
|
|
}
|
|
nextvalue = GETPOSARG(n);
|
|
p++;
|
|
goto retry;
|
|
}
|
|
CHECK_FOR_WIDTH(flags);
|
|
width = n;
|
|
flags |= FWIDTH;
|
|
goto retry;
|
|
|
|
case '*':
|
|
CHECK_FOR_WIDTH(flags);
|
|
flags |= FWIDTH;
|
|
GETASTER(width);
|
|
if (width < 0) {
|
|
flags |= FMINUS;
|
|
width = -width;
|
|
}
|
|
p++;
|
|
goto retry;
|
|
|
|
case '.':
|
|
if (flags & FPREC0) {
|
|
rb_raise(rb_eArgError, "precision given twice");
|
|
}
|
|
flags |= FPREC|FPREC0;
|
|
|
|
prec = 0;
|
|
p++;
|
|
if (*p == '*') {
|
|
GETASTER(prec);
|
|
if (prec < 0) { /* ignore negative precision */
|
|
flags &= ~FPREC;
|
|
}
|
|
p++;
|
|
goto retry;
|
|
}
|
|
|
|
GETNUM(prec, precision);
|
|
goto retry;
|
|
|
|
case '\n':
|
|
case '\0':
|
|
p--;
|
|
case '%':
|
|
if (flags != FNONE) {
|
|
rb_raise(rb_eArgError, "illegal format character - %%");
|
|
}
|
|
PUSH("%", 1);
|
|
break;
|
|
|
|
case 'c':
|
|
{
|
|
VALUE val = GETARG();
|
|
VALUE tmp;
|
|
int c, n;
|
|
|
|
tmp = rb_check_string_type(val);
|
|
if (!NIL_P(tmp)) {
|
|
if (rb_enc_strlen(RSTRING_PTR(tmp),RSTRING_END(tmp),enc) != 1) {
|
|
rb_raise(rb_eArgError, "%%c requires a character");
|
|
}
|
|
c = rb_enc_codepoint(RSTRING_PTR(tmp), RSTRING_END(tmp), enc);
|
|
}
|
|
else {
|
|
c = NUM2INT(val);
|
|
}
|
|
n = rb_enc_codelen(c, enc);
|
|
if (n == 0) {
|
|
rb_raise(rb_eArgError, "invalid character");
|
|
}
|
|
if (!(flags & FWIDTH)) {
|
|
CHECK(n);
|
|
rb_enc_mbcput(c, &buf[blen], enc);
|
|
blen += n;
|
|
}
|
|
else if ((flags & FMINUS)) {
|
|
CHECK(n);
|
|
rb_enc_mbcput(c, &buf[blen], enc);
|
|
blen += n;
|
|
FILL(' ', width-1);
|
|
}
|
|
else {
|
|
FILL(' ', width-1);
|
|
CHECK(n);
|
|
rb_enc_mbcput(c, &buf[blen], enc);
|
|
blen += n;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 's':
|
|
case 'p':
|
|
{
|
|
VALUE arg = GETARG();
|
|
long len, slen;
|
|
|
|
if (*p == 'p') arg = rb_inspect(arg);
|
|
str = rb_obj_as_string(arg);
|
|
if (OBJ_TAINTED(str)) tainted = 1;
|
|
len = RSTRING_LEN(str);
|
|
enc = rb_enc_check(fmt, str);
|
|
if (flags&(FPREC|FWIDTH)) {
|
|
slen = rb_enc_strlen(RSTRING_PTR(str),RSTRING_END(str),enc);
|
|
if (slen < 0) {
|
|
rb_raise(rb_eArgError, "invalid mbstring sequence");
|
|
}
|
|
}
|
|
if (flags&FPREC) {
|
|
if (prec < slen) {
|
|
char *p = rb_enc_nth(RSTRING_PTR(str), RSTRING_END(str),
|
|
prec, enc);
|
|
slen = prec;
|
|
len = p - RSTRING_PTR(str);
|
|
}
|
|
}
|
|
/* need to adjust multi-byte string pos */
|
|
if (flags&FWIDTH) {
|
|
if (width > slen) {
|
|
width -= slen;
|
|
if (!(flags&FMINUS)) {
|
|
CHECK(width);
|
|
while (width--) {
|
|
buf[blen++] = ' ';
|
|
}
|
|
}
|
|
CHECK(len);
|
|
memcpy(&buf[blen], RSTRING_PTR(str), len);
|
|
blen += len;
|
|
if (flags&FMINUS) {
|
|
CHECK(width);
|
|
while (width--) {
|
|
buf[blen++] = ' ';
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
PUSH(RSTRING_PTR(str), len);
|
|
}
|
|
break;
|
|
|
|
case 'd':
|
|
case 'i':
|
|
case 'o':
|
|
case 'x':
|
|
case 'X':
|
|
case 'b':
|
|
case 'B':
|
|
case 'u':
|
|
{
|
|
volatile VALUE val = GETARG();
|
|
char fbuf[32], nbuf[64], *s, *t;
|
|
const char *prefix = 0;
|
|
int sign = 0;
|
|
char sc = 0;
|
|
long v = 0;
|
|
int base, bignum = 0;
|
|
int len, pos;
|
|
|
|
switch (*p) {
|
|
case 'd':
|
|
case 'i':
|
|
case 'u':
|
|
sign = 1; break;
|
|
case 'o':
|
|
case 'x':
|
|
case 'X':
|
|
case 'b':
|
|
case 'B':
|
|
if (flags&(FPLUS|FSPACE)) sign = 1;
|
|
break;
|
|
}
|
|
if (flags & FSHARP) {
|
|
switch (*p) {
|
|
case 'o':
|
|
prefix = "0"; break;
|
|
case 'x':
|
|
prefix = "0x"; break;
|
|
case 'X':
|
|
prefix = "0X"; break;
|
|
case 'b':
|
|
prefix = "0b"; break;
|
|
case 'B':
|
|
prefix = "0B"; break;
|
|
}
|
|
if (prefix) {
|
|
width -= strlen(prefix);
|
|
}
|
|
}
|
|
|
|
bin_retry:
|
|
switch (TYPE(val)) {
|
|
case T_FLOAT:
|
|
if (FIXABLE((long)RFLOAT_VALUE(val))) {
|
|
val = LONG2FIX((long)RFLOAT_VALUE(val));
|
|
goto bin_retry;
|
|
}
|
|
val = rb_dbl2big(RFLOAT_VALUE(val));
|
|
if (FIXNUM_P(val)) goto bin_retry;
|
|
bignum = 1;
|
|
break;
|
|
case T_STRING:
|
|
val = rb_str_to_inum(val, 0, Qtrue);
|
|
goto bin_retry;
|
|
case T_BIGNUM:
|
|
bignum = 1;
|
|
break;
|
|
case T_FIXNUM:
|
|
v = FIX2LONG(val);
|
|
break;
|
|
default:
|
|
val = rb_Integer(val);
|
|
goto bin_retry;
|
|
}
|
|
|
|
switch (*p) {
|
|
case 'o':
|
|
base = 8; break;
|
|
case 'x':
|
|
case 'X':
|
|
base = 16; break;
|
|
case 'b':
|
|
case 'B':
|
|
base = 2; break;
|
|
case 'u':
|
|
case 'd':
|
|
case 'i':
|
|
default:
|
|
base = 10; break;
|
|
}
|
|
|
|
if (!bignum) {
|
|
if (base == 2) {
|
|
val = rb_int2big(v);
|
|
goto bin_retry;
|
|
}
|
|
if (sign) {
|
|
char c = *p;
|
|
if (c == 'i') c = 'd'; /* %d and %i are identical */
|
|
if (v < 0) {
|
|
v = -v;
|
|
sc = '-';
|
|
width--;
|
|
}
|
|
else if (flags & FPLUS) {
|
|
sc = '+';
|
|
width--;
|
|
}
|
|
else if (flags & FSPACE) {
|
|
sc = ' ';
|
|
width--;
|
|
}
|
|
sprintf(fbuf, "%%l%c", c);
|
|
sprintf(nbuf, fbuf, v);
|
|
}
|
|
else {
|
|
s = nbuf;
|
|
if (v < 0) {
|
|
strcpy(s, "..");
|
|
s += 2;
|
|
}
|
|
sprintf(fbuf, "%%l%c", *p == 'X' ? 'x' : *p);
|
|
sprintf(s, fbuf, v);
|
|
if (v < 0) {
|
|
char d = 0;
|
|
|
|
remove_sign_bits(s, base);
|
|
switch (base) {
|
|
case 16:
|
|
d = 'f'; break;
|
|
case 8:
|
|
d = '7'; break;
|
|
}
|
|
if (d && *s != d) {
|
|
memmove(s+1, s, strlen(s)+1);
|
|
*s = d;
|
|
}
|
|
}
|
|
}
|
|
s = nbuf;
|
|
}
|
|
else {
|
|
if (sign) {
|
|
tmp = rb_big2str(val, base);
|
|
s = RSTRING_PTR(tmp);
|
|
if (s[0] == '-') {
|
|
s++;
|
|
sc = '-';
|
|
width--;
|
|
}
|
|
else if (flags & FPLUS) {
|
|
sc = '+';
|
|
width--;
|
|
}
|
|
else if (flags & FSPACE) {
|
|
sc = ' ';
|
|
width--;
|
|
}
|
|
}
|
|
else {
|
|
volatile VALUE tmp1;
|
|
if (!RBIGNUM_SIGN(val)) {
|
|
val = rb_big_clone(val);
|
|
rb_big_2comp(val);
|
|
}
|
|
tmp1 = tmp = rb_big2str0(val, base, RBIGNUM_SIGN(val));
|
|
s = RSTRING_PTR(tmp);
|
|
if (*s == '-') {
|
|
if (base == 10) {
|
|
rb_warning("negative number for %%u specifier");
|
|
}
|
|
remove_sign_bits(++s, base);
|
|
tmp = rb_str_new(0, 3+strlen(s));
|
|
t = RSTRING_PTR(tmp);
|
|
if (!(flags&(FPREC|FZERO))) {
|
|
strcpy(t, "..");
|
|
t += 2;
|
|
}
|
|
switch (base) {
|
|
case 16:
|
|
if (s[0] != 'f') strcpy(t++, "f"); break;
|
|
case 8:
|
|
if (s[0] != '7') strcpy(t++, "7"); break;
|
|
case 2:
|
|
if (s[0] != '1') strcpy(t++, "1"); break;
|
|
}
|
|
strcpy(t, s);
|
|
s = RSTRING_PTR(tmp);
|
|
}
|
|
}
|
|
}
|
|
|
|
pos = -1;
|
|
len = strlen(s);
|
|
|
|
if (*p == 'X') {
|
|
char *pp = s;
|
|
int c;
|
|
while ((c = (int)(unsigned char)*pp) != 0) {
|
|
*pp = rb_enc_toupper(c, enc);
|
|
pp++;
|
|
}
|
|
}
|
|
if ((flags&(FZERO|FPREC)) == FZERO) {
|
|
prec = width;
|
|
width = 0;
|
|
}
|
|
else {
|
|
if (prec < len) prec = len;
|
|
width -= prec;
|
|
}
|
|
if (!(flags&FMINUS)) {
|
|
CHECK(width);
|
|
while (width-- > 0) {
|
|
buf[blen++] = ' ';
|
|
}
|
|
}
|
|
if (sc) PUSH(&sc, 1);
|
|
if (prefix) {
|
|
int plen = strlen(prefix);
|
|
PUSH(prefix, plen);
|
|
}
|
|
CHECK(prec - len);
|
|
if (!bignum && v < 0) {
|
|
char c = sign_bits(base, p);
|
|
while (len < prec--) {
|
|
buf[blen++] = c;
|
|
}
|
|
}
|
|
else {
|
|
char c;
|
|
|
|
if (!sign && bignum && !RBIGNUM_SIGN(val))
|
|
c = sign_bits(base, p);
|
|
else
|
|
c = '0';
|
|
while (len < prec--) {
|
|
buf[blen++] = c;
|
|
}
|
|
}
|
|
PUSH(s, len);
|
|
CHECK(width);
|
|
while (width-- > 0) {
|
|
buf[blen++] = ' ';
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'f':
|
|
case 'g':
|
|
case 'G':
|
|
case 'e':
|
|
case 'E':
|
|
{
|
|
VALUE val = GETARG();
|
|
double fval;
|
|
int i, need = 6;
|
|
char fbuf[32];
|
|
|
|
fval = RFLOAT_VALUE(rb_Float(val));
|
|
if (isnan(fval) || isinf(fval)) {
|
|
const char *expr;
|
|
|
|
if (isnan(fval)) {
|
|
expr = "NaN";
|
|
}
|
|
else {
|
|
expr = "Inf";
|
|
}
|
|
need = strlen(expr);
|
|
if ((!isnan(fval) && fval < 0.0) || (flags & FPLUS))
|
|
need++;
|
|
if ((flags & FWIDTH) && need < width)
|
|
need = width;
|
|
|
|
CHECK(need);
|
|
sprintf(&buf[blen], "%*s", need, "");
|
|
if (flags & FMINUS) {
|
|
if (!isnan(fval) && fval < 0.0)
|
|
buf[blen++] = '-';
|
|
else if (flags & FPLUS)
|
|
buf[blen++] = '+';
|
|
else if (flags & FSPACE)
|
|
blen++;
|
|
strncpy(&buf[blen], expr, strlen(expr));
|
|
}
|
|
else if (flags & FZERO) {
|
|
if (!isnan(fval) && fval < 0.0) {
|
|
buf[blen++] = '-';
|
|
need--;
|
|
}
|
|
else if (flags & FPLUS) {
|
|
buf[blen++] = '+';
|
|
need--;
|
|
}
|
|
else if (flags & FSPACE) {
|
|
blen++;
|
|
need--;
|
|
}
|
|
while (need-- - strlen(expr) > 0) {
|
|
buf[blen++] = '0';
|
|
}
|
|
strncpy(&buf[blen], expr, strlen(expr));
|
|
}
|
|
else {
|
|
if (!isnan(fval) && fval < 0.0)
|
|
buf[blen + need - strlen(expr) - 1] = '-';
|
|
else if (flags & FPLUS)
|
|
buf[blen + need - strlen(expr) - 1] = '+';
|
|
strncpy(&buf[blen + need - strlen(expr)], expr,
|
|
strlen(expr));
|
|
}
|
|
blen += strlen(&buf[blen]);
|
|
break;
|
|
}
|
|
|
|
fmt_setup(fbuf, *p, flags, width, prec);
|
|
need = 0;
|
|
if (*p != 'e' && *p != 'E') {
|
|
i = INT_MIN;
|
|
frexp(fval, &i);
|
|
if (i > 0)
|
|
need = BIT_DIGITS(i);
|
|
}
|
|
need += (flags&FPREC) ? prec : 6;
|
|
if ((flags&FWIDTH) && need < width)
|
|
need = width;
|
|
need += 20;
|
|
|
|
CHECK(need);
|
|
sprintf(&buf[blen], fbuf, fval);
|
|
blen += strlen(&buf[blen]);
|
|
}
|
|
break;
|
|
}
|
|
flags = FNONE;
|
|
}
|
|
|
|
sprint_exit:
|
|
/* XXX - We cannot validiate the number of arguments if (digit)$ style used.
|
|
*/
|
|
if (posarg >= 0 && nextarg < argc) {
|
|
const char *mesg = "too many arguments for format string";
|
|
if (RTEST(ruby_debug)) rb_raise(rb_eArgError, mesg);
|
|
if (RTEST(ruby_verbose)) rb_warn(mesg);
|
|
}
|
|
rb_str_resize(result, blen);
|
|
|
|
if (tainted) OBJ_TAINT(result);
|
|
rb_enc_associate(result, enc);
|
|
return result;
|
|
}
|
|
|
|
static void
|
|
fmt_setup(char *buf, int c, int flags, int width, int prec)
|
|
{
|
|
*buf++ = '%';
|
|
if (flags & FSHARP) *buf++ = '#';
|
|
if (flags & FPLUS) *buf++ = '+';
|
|
if (flags & FMINUS) *buf++ = '-';
|
|
if (flags & FZERO) *buf++ = '0';
|
|
if (flags & FSPACE) *buf++ = ' ';
|
|
|
|
if (flags & FWIDTH) {
|
|
sprintf(buf, "%d", width);
|
|
buf += strlen(buf);
|
|
}
|
|
|
|
if (flags & FPREC) {
|
|
sprintf(buf, ".%d", prec);
|
|
buf += strlen(buf);
|
|
}
|
|
|
|
*buf++ = c;
|
|
*buf = '\0';
|
|
}
|
|
|
|
#undef FILE
|
|
#define FILE rb_printf_buffer
|
|
#define __sbuf rb_printf_sbuf
|
|
#define __sFILE rb_printf_sfile
|
|
#undef feof
|
|
#undef ferror
|
|
#undef clearerr
|
|
#undef fileno
|
|
#if SIZEOF_LONG < SIZEOF_VOIDP
|
|
# if SIZEOF_LONG_LONG == SIZEOF_VOIDP
|
|
# define _HAVE_SANE_QUAD_
|
|
# define _HAVE_LLP64_
|
|
# define quad_t LONG_LONG
|
|
# define u_quad_t unsigned LONG_LONG
|
|
# endif
|
|
#endif
|
|
#undef vsnprintf
|
|
#undef snprintf
|
|
#include "missing/vsnprintf.c"
|
|
|
|
static int
|
|
ruby__sfvwrite(register rb_printf_buffer *fp, register struct __suio *uio)
|
|
{
|
|
struct __siov *iov;
|
|
VALUE result = (VALUE)fp->_bf._base;
|
|
char *buf = (char*)fp->_p;
|
|
size_t len, n;
|
|
int blen = buf - RSTRING_PTR(result), bsiz = fp->_w;
|
|
|
|
if (RBASIC(result)->klass) {
|
|
rb_raise(rb_eRuntimeError, "rb_vsprintf reentered");
|
|
}
|
|
if ((len = uio->uio_resid) == 0)
|
|
return 0;
|
|
CHECK(len);
|
|
buf += blen;
|
|
fp->_w = bsiz;
|
|
for (iov = uio->uio_iov; len > 0; ++iov) {
|
|
MEMCPY(buf, iov->iov_base, char, n = iov->iov_len);
|
|
buf += n;
|
|
len -= n;
|
|
}
|
|
fp->_p = (unsigned char *)buf;
|
|
return 0;
|
|
}
|
|
|
|
VALUE
|
|
rb_vsprintf(const char *fmt, va_list ap)
|
|
{
|
|
rb_printf_buffer f;
|
|
VALUE result;
|
|
|
|
f._flags = __SWR | __SSTR;
|
|
f._bf._size = 0;
|
|
f._w = 120;
|
|
result = rb_str_buf_new(f._w);
|
|
f._bf._base = (unsigned char *)result;
|
|
f._p = (unsigned char *)RSTRING_PTR(result);
|
|
RBASIC(result)->klass = 0;
|
|
f.vwrite = ruby__sfvwrite;
|
|
BSD_vfprintf(&f, fmt, ap);
|
|
RBASIC(result)->klass = rb_cString;
|
|
rb_str_resize(result, (char *)f._p - RSTRING_PTR(result));
|
|
|
|
return result;
|
|
}
|
|
|
|
VALUE
|
|
rb_sprintf(const char *format, ...)
|
|
{
|
|
VALUE result;
|
|
va_list ap;
|
|
|
|
va_start(ap, format);
|
|
result = rb_vsprintf(format, ap);
|
|
va_end(ap);
|
|
|
|
return result;
|
|
}
|