diff options
Diffstat (limited to 'trunk/sprintf.c')
-rw-r--r-- | trunk/sprintf.c | 1154 |
1 files changed, 0 insertions, 1154 deletions
diff --git a/trunk/sprintf.c b/trunk/sprintf.c deleted file mode 100644 index 16a8f61b90..0000000000 --- a/trunk/sprintf.c +++ /dev/null @@ -1,1154 +0,0 @@ -/********************************************************************** - - 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; -} |