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-rw-r--r--trunk/sprintf.c1154
1 files changed, 1154 insertions, 0 deletions
diff --git a/trunk/sprintf.c b/trunk/sprintf.c
new file mode 100644
index 0000000000..16a8f61b90
--- /dev/null
+++ b/trunk/sprintf.c
@@ -0,0 +1,1154 @@
+/**********************************************************************
+
+ sprintf.c -
+
+ $Author$
+ 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>
+
+#ifdef HAVE_IEEEFP_H
+#include <ieeefp.h>
+#endif
+
+#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++;
+ }
+ }
+
+ return t;
+}
+
+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.
+ *
+ * The syntax of a format sequence is follows.
+ *
+ * %[flags][width][.precision]type
+ *
+ * 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:
+ *
+ * Field | Integer Format
+ * ------+--------------------------------------------------------------
+ * b | Convert argument as a binary number.
+ * | Negative numbers will be displayed as a two's complement
+ * | prefixed with `..1'.
+ * B | Equivalent to `b', but uses an uppercase 0B for prefix
+ * | in the alternative format by #.
+ * d | Convert argument as a decimal number.
+ * i | Identical to `d'.
+ * o | Convert argument as an octal number.
+ * | Negative numbers will be displayed as a two's complement
+ * | prefixed with `..7'.
+ * u | Identical to `d'.
+ * x | Convert argument as a hexadecimal number.
+ * | Negative numbers will be displayed as a two's complement
+ * | prefixed with `..f' (representing an infinite string of
+ * | leading 'ff's).
+ * X | Equivalent to `x', but uses uppercase letters.
+ *
+ * Field | Float Format
+ * ------+--------------------------------------------------------------
+ * e | Convert floating point argument into exponential notation
+ * | with one digit before the decimal point as [-]d.dddddde[+-]dd.
+ * | The precision specifies the number of digits after the decimal
+ * | point (defaulting to six).
+ * E | Equivalent to `e', but uses an uppercase E to indicate
+ * | the exponent.
+ * f | Convert floating point argument as [-]ddd.dddddd,
+ * | where the precision specifies the number of digits after
+ * | the decimal point.
+ * 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 dd.dddd form otherwise.
+ * | The precision specifies the number of significant digits.
+ * G | Equivalent to `g', but use an uppercase `E' in exponent form.
+ *
+ * Field | Other Format
+ * ------+--------------------------------------------------------------
+ * c | Argument is the numeric code for a single character or
+ * | a single character string itself.
+ * 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.
+ * % | A percent sign itself will be displayed. No argument taken.
+ *
+ * The flags modifies the behavior of the formats.
+ * The flag characters are:
+ *
+ * Flag | Applies to | Meaning
+ * ---------+---------------+-----------------------------------------
+ * space | bBdiouxX | Leave a space at the start of
+ * | eEfgG | non-negative numbers.
+ * | (numeric fmt) | For `o', `x', `X', `b' and `B', use
+ * | | a minus sign with absolute value for
+ * | | negative values.
+ * ---------+---------------+-----------------------------------------
+ * (digit)$ | all | Specifies the absolute argument number
+ * | | for this field. Absolute and relative
+ * | | argument numbers cannot be mixed in a
+ * | | sprintf string.
+ * ---------+---------------+-----------------------------------------
+ * # | bBoxX | Use an alternative format.
+ * | eEfgG | For the conversions `o', increase the precision
+ * | | until the first digit will be `0' if
+ * | | it is not formatted as complements.
+ * | | For the conversions `x', `X', `b' and `B'
+ * | | on non-zero, prefix the result with ``0x'',
+ * | | ``0X'', ``0b'' 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.
+ * ---------+---------------+-----------------------------------------
+ * + | bBdiouxX | Add a leading plus sign to non-negative
+ * | eEfgG | numbers.
+ * | (numeric fmt) | For `o', `x', `X', `b' and `B', use
+ * | | a minus sign with absolute value for
+ * | | negative values.
+ * ---------+---------------+-----------------------------------------
+ * - | all | Left-justify the result of this conversion.
+ * ---------+---------------+-----------------------------------------
+ * 0 (zero) | bBdiouxX | Pad with zeros, not spaces.
+ * | eEfgG | For `o', `x', `X', `b' and `B', radix-1
+ * | (numeric fmt) | is used for negative numbers formatted as
+ * | | complements.
+ * ---------+---------------+-----------------------------------------
+ * * | 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.
+ *
+ * Examples of flags:
+ *
+ * # `+' and space flag specifies the sign of non-negative numbers.
+ * sprintf("%d", 123) #=> "123"
+ * sprintf("%+d", 123) #=> "+123"
+ * sprintf("% d", 123) #=> " 123"
+ *
+ * # `#' flag for `o' increases number of digits to show `0'.
+ * # `+' and space flag changes format of negative numbers.
+ * sprintf("%o", 123) #=> "173"
+ * sprintf("%#o", 123) #=> "0173"
+ * sprintf("%+o", -123) #=> "-173"
+ * sprintf("%o", -123) #=> "..7605"
+ * sprintf("%#o", -123) #=> "..7605"
+ *
+ * # `#' flag for `x' add a prefix `0x' for non-zero numbers.
+ * # `+' and space flag disables complements for negative numbers.
+ * sprintf("%x", 123) #=> "7b"
+ * sprintf("%#x", 123) #=> "0x7b"
+ * sprintf("%+x", -123) #=> "-7b"
+ * sprintf("%x", -123) #=> "..f85"
+ * sprintf("%#x", -123) #=> "0x..f85"
+ * sprintf("%#x", 0) #=> "0"
+ *
+ * # `#' for `X' uses the prefix `0X'.
+ * sprintf("%X", 123) #=> "7B"
+ * sprintf("%#X", 123) #=> "0X7B"
+ *
+ * # `#' flag for `b' add a prefix `0b' for non-zero numbers.
+ * # `+' and space flag disables complements for negative numbers.
+ * sprintf("%b", 123) #=> "1111011"
+ * sprintf("%#b", 123) #=> "0b1111011"
+ * sprintf("%+b", -123) #=> "-1111011"
+ * sprintf("%b", -123) #=> "..10000101"
+ * sprintf("%#b", -123) #=> "0b..10000101"
+ * sprintf("%#b", 0) #=> "0"
+ *
+ * # `#' for `B' uses the prefix `0B'.
+ * sprintf("%B", 123) #=> "1111011"
+ * sprintf("%#B", 123) #=> "0B1111011"
+ *
+ * # `#' for `e' forces to show the decimal point.
+ * sprintf("%.0e", 1) #=> "1e+00"
+ * sprintf("%#.0e", 1) #=> "1.e+00"
+ *
+ * # `#' for `f' forces to show the decimal point.
+ * sprintf("%.0f", 1234) #=> "1234"
+ * sprintf("%#.0f", 1234) #=> "1234."
+ *
+ * # `#' for `g' forces to show the decimal point.
+ * # It also disables stripping lowest zeros.
+ * sprintf("%g", 123.4) #=> "123.4"
+ * sprintf("%#g", 123.4) #=> "123.400"
+ * sprintf("%g", 123456) #=> "123456"
+ * sprintf("%#g", 123456) #=> "123456."
+ *
+ * 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.
+ *
+ * Examples of width:
+ *
+ * # padding is done by spaces, width=20
+ * # 0 or radix-1. <------------------>
+ * sprintf("%20d", 123) #=> " 123"
+ * sprintf("%+20d", 123) #=> " +123"
+ * sprintf("%020d", 123) #=> "00000000000000000123"
+ * sprintf("%+020d", 123) #=> "+0000000000000000123"
+ * sprintf("% 020d", 123) #=> " 0000000000000000123"
+ * sprintf("%-20d", 123) #=> "123 "
+ * sprintf("%-+20d", 123) #=> "+123 "
+ * sprintf("%- 20d", 123) #=> " 123 "
+ * sprintf("%020x", -123) #=> "..ffffffffffffffff85"
+ *
+ * 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.)
+ *
+ * Examples of precisions:
+ *
+ * # precision for `d', 'o', 'x' and 'b' is
+ * # minimum number of digits <------>
+ * sprintf("%20.8d", 123) #=> " 00000123"
+ * sprintf("%20.8o", 123) #=> " 00000173"
+ * sprintf("%20.8x", 123) #=> " 0000007b"
+ * sprintf("%20.8b", 123) #=> " 01111011"
+ * sprintf("%20.8d", -123) #=> " -00000123"
+ * sprintf("%20.8o", -123) #=> " ..777605"
+ * sprintf("%20.8x", -123) #=> " ..ffff85"
+ * sprintf("%20.8b", -11) #=> " ..110101"
+ *
+ * # "0x" and "0b" for `#x' and `#b' is not counted for
+ * # precision but "0" for `#o' is counted. <------>
+ * sprintf("%#20.8d", 123) #=> " 00000123"
+ * sprintf("%#20.8o", 123) #=> " 00000173"
+ * sprintf("%#20.8x", 123) #=> " 0x0000007b"
+ * sprintf("%#20.8b", 123) #=> " 0b01111011"
+ * sprintf("%#20.8d", -123) #=> " -00000123"
+ * sprintf("%#20.8o", -123) #=> " ..777605"
+ * sprintf("%#20.8x", -123) #=> " 0x..ffff85"
+ * sprintf("%#20.8b", -11) #=> " 0b..110101"
+ *
+ * # precision for `e' is number of
+ * # digits after the decimal point <------>
+ * sprintf("%20.8e", 1234.56789) #=> " 1.23456789e+03"
+ *
+ * # precision for `f' is number of
+ * # digits after the decimal point <------>
+ * sprintf("%20.8f", 1234.56789) #=> " 1234.56789000"
+ *
+ * # precision for `g' is number of
+ * # significant digits <------->
+ * sprintf("%20.8g", 1234.56789) #=> " 1234.5679"
+ *
+ * # <------->
+ * sprintf("%20.8g", 123456789) #=> " 1.2345679e+08"
+ *
+ * # precision for `s' is
+ * # maximum number of characters <------>
+ * sprintf("%20.8s", "string test") #=> " string t"
+ *
+ * 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) #=> "-123"
+ */
+
+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);
+ rb_enc_copy(result, fmt);
+ buf = RSTRING_PTR(result);
+ memset(buf, 0, bsiz);
+
+ 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, "invalid 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(result, 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) && (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) && (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++] = ' ';
+ }
+ }
+ rb_enc_associate(result, enc);
+ break;
+ }
+ }
+ PUSH(RSTRING_PTR(str), len);
+ rb_enc_associate(result, enc);
+ }
+ break;
+
+ case 'd':
+ case 'i':
+ case 'o':
+ case 'x':
+ case 'X':
+ case 'b':
+ case 'B':
+ case 'u':
+ {
+ volatile VALUE tmp1;
+ volatile VALUE val = GETARG();
+ char fbuf[32], nbuf[64], *s;
+ const char *prefix = 0;
+ int sign = 0, dots = 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;
+ }
+ }
+
+ bin_retry:
+ switch (TYPE(val)) {
+ case T_FLOAT:
+ if (FIXABLE(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);
+ s = nbuf;
+ }
+ else {
+ s = nbuf;
+ if (v < 0) {
+ dots = 1;
+ }
+ sprintf(fbuf, "%%l%c", *p == 'X' ? 'x' : *p);
+ sprintf(++s, fbuf, v);
+ if (v < 0) {
+ char d = 0;
+
+ s = remove_sign_bits(s, base);
+ switch (base) {
+ case 16:
+ d = 'f'; break;
+ case 8:
+ d = '7'; break;
+ }
+ if (d && *s != d) {
+ *--s = d;
+ }
+ }
+ }
+ }
+ 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 {
+ 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 == '-') {
+ dots = 1;
+ if (base == 10) {
+ rb_warning("negative number for %%u specifier");
+ }
+ s = remove_sign_bits(++s, base);
+ switch (base) {
+ case 16:
+ if (s[0] != 'f') *--s = 'f'; break;
+ case 8:
+ if (s[0] != '7') *--s = '7'; break;
+ case 2:
+ if (s[0] != '1') *--s = '1'; break;
+ }
+ }
+ }
+ }
+
+ pos = -1;
+ len = strlen(s);
+ if (dots) {
+ prec -= 2;
+ width -= 2;
+ }
+
+ if (*p == 'X') {
+ char *pp = s;
+ int c;
+ while ((c = (int)(unsigned char)*pp) != 0) {
+ *pp = rb_enc_toupper(c, enc);
+ pp++;
+ }
+ }
+ if (prefix && !prefix[1]) { /* octal */
+ if (dots) {
+ prefix = 0;
+ }
+ else if (len == 1 && *s == '0') {
+ len = 0;
+ if (flags & FPREC) prec--;
+ }
+ else if ((flags & FPREC) && (prec > len)) {
+ prefix = 0;
+ }
+ }
+ else if (len == 1 && *s == '0') {
+ prefix = 0;
+ }
+ if (prefix) {
+ width -= strlen(prefix);
+ }
+ if ((flags & (FZERO|FMINUS|FPREC)) == FZERO) {
+ prec = width;
+ width = 0;
+ }
+ else {
+ if (prec < len) {
+ if (!prefix && prec == 0 && len == 1 && *s == '0') len = 0;
+ 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 (dots) PUSH("..", 2);
+ if (!bignum && v < 0) {
+ char c = sign_bits(base, p);
+ while (len < prec--) {
+ buf[blen++] = c;
+ }
+ }
+ else if ((flags & (FMINUS|FPREC)) != FMINUS) {
+ 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 (!isnan(fval) && fval < 0.0)
+ buf[blen + need - strlen(expr) - 1] = '-';
+ else if (flags & FPLUS)
+ buf[blen + need - strlen(expr) - 1] = '+';
+ else if ((flags & FSPACE) && need > width)
+ blen++;
+ 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 validate 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, "%s", mesg);
+ if (RTEST(ruby_verbose)) rb_warn("%s", mesg);
+ }
+ rb_str_resize(result, blen);
+
+ if (tainted) OBJ_TAINT(result);
+ 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
+#define FLOATING_POINT 1
+#define BSD__dtoa dtoa
+#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;
+ size_t 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_enc_vsprintf(rb_encoding *enc, 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);
+ if (enc) rb_enc_associate(result, enc);
+ 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_enc_sprintf(rb_encoding *enc, const char *format, ...)
+{
+ VALUE result;
+ va_list ap;
+
+ va_start(ap, format);
+ result = rb_enc_vsprintf(enc, format, ap);
+ va_end(ap);
+
+ return result;
+}
+
+VALUE
+rb_vsprintf(const char *fmt, va_list ap)
+{
+ return rb_enc_vsprintf(NULL, fmt, ap);
+}
+
+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;
+}
+
+VALUE
+rb_str_vcatf(VALUE str, const char *fmt, va_list ap)
+{
+ rb_printf_buffer f;
+ VALUE klass;
+
+ StringValue(str);
+ rb_str_modify(str);
+ f._flags = __SWR | __SSTR;
+ f._bf._size = 0;
+ f._w = rb_str_capacity(str);
+ f._bf._base = (unsigned char *)str;
+ f._p = (unsigned char *)RSTRING_END(str);
+ klass = RBASIC(str)->klass;
+ RBASIC(str)->klass = 0;
+ f.vwrite = ruby__sfvwrite;
+ BSD_vfprintf(&f, fmt, ap);
+ RBASIC(str)->klass = klass;
+ rb_str_resize(str, (char *)f._p - RSTRING_PTR(str));
+
+ return str;
+}
+
+VALUE
+rb_str_catf(VALUE str, const char *format, ...)
+{
+ va_list ap;
+
+ va_start(ap, format);
+ str = rb_str_vcatf(str, format, ap);
+ va_end(ap);
+
+ return str;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-18 23:12:38 +0000