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Diffstat (limited to 'ruby_1_8_5/sprintf.c')
-rw-r--r--ruby_1_8_5/sprintf.c842
1 files changed, 0 insertions, 842 deletions
diff --git a/ruby_1_8_5/sprintf.c b/ruby_1_8_5/sprintf.c
deleted file mode 100644
index 45d4d7a063..0000000000
--- a/ruby_1_8_5/sprintf.c
+++ /dev/null
@@ -1,842 +0,0 @@
-/**********************************************************************
-
- sprintf.c -
-
- $Author: matz $
- $Date: 2006/07/28 16:27:42 $
- created at: Fri Oct 15 10:39:26 JST 1993
-
- Copyright (C) 1993-2003 Yukihiro Matsumoto
- Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
- Copyright (C) 2000 Information-technology Promotion Agency, Japan
-
-**********************************************************************/
-
-#include "ruby.h"
-#include "re.h"
-#include <ctype.h>
-#include <math.h>
-
-#define BIT_DIGITS(N) (((N)*146)/485 + 1) /* log2(10) =~ 146/485 */
-
-static void fmt_setup _((char*,int,int,int,int));
-
-static char*
-remove_sign_bits(str, base)
- char *str;
- int base;
-{
- char *s, *t;
-
- s = t = str;
-
- if (base == 16) {
- while (*t == 'f') {
- t++;
- }
- }
- else if (base == 8) {
- if (*t == '3') 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(base, p)
- 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 CHECK(l) do {\
- while (blen + (l) >= bsiz) {\
- bsiz*=2;\
- }\
- rb_str_resize(result, bsiz);\
- buf = RSTRING(result)->ptr;\
-} while (0)
-
-#define PUSH(s, l) do { \
- CHECK(l);\
- memcpy(&buf[blen], s, 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$", n), 0) : \
- (posarg = -1, GETNTHARG(n))))
-
-#define GETNTHARG(nth) \
- ((nth >= argc) ? (rb_raise(rb_eArgError, "too few arguments"), 0) : argv[nth])
-
-#define GETASTER(val) do { \
- t = p++; \
- n = 0; \
- for (; p < end && ISDIGIT(*p); p++) { \
- int next_n = 10 * n + (*p - '0'); \
- if (next_n / 10 != n) {\
- rb_raise(rb_eArgError, #val " too big"); \
- } \
- n = next_n; \
- } \
- if (p >= end) { \
- rb_raise(rb_eArgError, "malformed format string - %%*[0-9]"); \
- } \
- if (*p == '$') { \
- 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$d", "hello", -8) #=> "hello -8"
- * sprintf("%+g:% g:%-g", 1.23, 1.23, 1.23) #=> "+1.23: 1.23:1.23"
- * sprintf("%u", -123) #=> "..4294967173"
- */
-
-VALUE
-rb_f_sprintf(argc, argv)
- int argc;
- VALUE *argv;
-{
- VALUE fmt;
- const char *p, *end;
- char *buf;
- int blen, bsiz;
- VALUE result;
-
- int width, prec, flags = FNONE;
- int nextarg = 1;
- int posarg = 0;
- int tainted = 0;
- VALUE nextvalue;
- VALUE tmp;
- VALUE str;
-
- fmt = GETNTHARG(0);
- if (OBJ_TAINTED(fmt)) tainted = 1;
- StringValue(fmt);
- fmt = rb_str_new4(fmt);
- p = RSTRING(fmt)->ptr;
- end = p + RSTRING(fmt)->len;
- blen = 0;
- bsiz = 120;
- result = rb_str_buf_new(bsiz);
- buf = RSTRING(result)->ptr;
-
- for (; p < end; p++) {
- const char *t;
- int n;
-
- for (t = p; t < end && *t != '%'; t++) ;
- PUSH(p, t - p);
- if (t >= end) {
- /* end of fmt string */
- goto sprint_exit;
- }
- p = t + 1; /* skip `%' */
-
- width = prec = -1;
- nextvalue = Qundef;
- retry:
- switch (*p) {
- default:
- if (ISPRINT(*p))
- rb_raise(rb_eArgError, "malformed format string - %%%c", *p);
- else
- rb_raise(rb_eArgError, "malformed format string");
- break;
-
- case ' ':
- flags |= FSPACE;
- p++;
- goto retry;
-
- case '#':
- flags |= FSHARP;
- p++;
- goto retry;
-
- case '+':
- flags |= FPLUS;
- p++;
- goto retry;
-
- case '-':
- flags |= FMINUS;
- p++;
- goto retry;
-
- case '0':
- flags |= FZERO;
- p++;
- goto retry;
-
- case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- n = 0;
- for (; p < end && ISDIGIT(*p); p++) {
- int next_n = 10 * n + (*p - '0');
- if (next_n / 10 != n) {
- rb_raise(rb_eArgError, "width too big");
- }
- n = 10 * n + (*p - '0');
- }
- if (p >= end) {
- rb_raise(rb_eArgError, "malformed format string - %%[0-9]");
- }
- if (*p == '$') {
- if (nextvalue != Qundef) {
- rb_raise(rb_eArgError, "value given twice - %d$", n);
- }
- nextvalue = GETPOSARG(n);
- p++;
- goto retry;
- }
- width = n;
- flags |= FWIDTH;
- goto retry;
-
- case '*':
- if (flags & FWIDTH) {
- rb_raise(rb_eArgError, "width given twice");
- }
-
- flags |= FWIDTH;
- GETASTER(width);
- if (width < 0) {
- flags |= FMINUS;
- width = -width;
- }
- p++;
- goto retry;
-
- case '.':
- if (flags & FPREC) {
- rb_raise(rb_eArgError, "precision given twice");
- }
- flags |= FPREC;
-
- prec = 0;
- p++;
- if (*p == '*') {
- GETASTER(prec);
- if (prec < 0) { /* ignore negative precision */
- flags &= ~FPREC;
- }
- p++;
- goto retry;
- }
-
- for (; p < end && ISDIGIT(*p); p++) {
- prec = 10 * prec + (*p - '0');
- }
- if (p >= end) {
- rb_raise(rb_eArgError, "malformed format string - %%.[0-9]");
- }
- goto retry;
-
- case '\n':
- p--;
- case '\0':
- case '%':
- if (flags != FNONE) {
- rb_raise(rb_eArgError, "illegal format character - %%");
- }
- PUSH("%", 1);
- break;
-
- case 'c':
- {
- VALUE val = GETARG();
- char c;
-
- if (!(flags & FMINUS))
- while (--width > 0)
- PUSH(" ", 1);
- c = NUM2INT(val) & 0xff;
- PUSH(&c, 1);
- while (--width > 0)
- PUSH(" ", 1);
- }
- break;
-
- case 's':
- case 'p':
- {
- VALUE arg = GETARG();
- long len;
-
- if (*p == 'p') arg = rb_inspect(arg);
- str = rb_obj_as_string(arg);
- if (OBJ_TAINTED(str)) tainted = 1;
- len = RSTRING(str)->len;
- if (flags&FPREC) {
- if (prec < len) {
- len = prec;
- }
- }
- {
- char *s, *send;
- long l;
-
- s = RSTRING(str)->ptr;
- send = s + RSTRING(str)->len;
- l = 0;
- while (s < send) {
- long n = mbclen(*s);
- if (l + n > len) {
- len = l;
- break;
- }
- l += n;
- s += n;
- }
- }
- if (flags&FWIDTH) {
- if (width > len) {
- CHECK(width);
- width -= len;
- if (!(flags&FMINUS)) {
- while (width--) {
- buf[blen++] = ' ';
- }
- }
- memcpy(&buf[blen], RSTRING(str)->ptr, len);
- blen += len;
- if (flags&FMINUS) {
- while (width--) {
- buf[blen++] = ' ';
- }
- }
- break;
- }
- }
- PUSH(RSTRING(str)->ptr, 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;
- char *prefix = 0;
- int sign = 0;
- char sc = 0;
- long v = 0;
- int base, bignum = 0;
- int len, pos;
- VALUE tmp;
- volatile VALUE tmp1;
-
- switch (*p) {
- case 'd':
- case 'i':
- sign = 1; break;
- case 'o':
- case 'x':
- case 'X':
- case 'b':
- case 'B':
- case 'u':
- default:
- 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:
- val = rb_dbl2big(RFLOAT(val)->value);
- 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;
- goto format_integer;
- }
- s = nbuf;
- if (v < 0) {
- if (base == 10) {
- rb_warning("negative number for %%u specifier");
- }
- if (!(flags&(FPREC|FZERO))) {
- 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;
- goto format_integer;
- }
-
- if (sign) {
- tmp = rb_big2str(val, base);
- s = RSTRING(tmp)->ptr;
- if (s[0] == '-') {
- s++;
- sc = '-';
- width--;
- }
- else if (flags & FPLUS) {
- sc = '+';
- width--;
- }
- else if (flags & FSPACE) {
- sc = ' ';
- width--;
- }
- goto format_integer;
- }
- if (!RBIGNUM(val)->sign) {
- val = rb_big_clone(val);
- rb_big_2comp(val);
- }
- tmp1 = tmp = rb_big2str(val, base);
- s = RSTRING(tmp)->ptr;
- 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(tmp)->ptr;
- 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);
- bignum = 2;
- }
- s = RSTRING(tmp)->ptr;
-
- format_integer:
- pos = -1;
- len = strlen(s);
-
- if (*p == 'X') {
- char *pp = s;
- while (*pp) {
- *pp = toupper(*pp);
- 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 (bignum && !RBIGNUM(val)->sign)
- 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(rb_Float(val))->value;
-#if defined(_WIN32) && !defined(__BORLANDC__)
- if (isnan(fval) || isinf(fval)) {
- 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;
- }
-#endif /* defined(_WIN32) && !defined(__BORLANDC__) */
- 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);
- return result;
-}
-
-static void
-fmt_setup(buf, c, flags, width, prec)
- char *buf;
- int c;
- int flags, width, 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';
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 19:39:11 +0000