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* sprintf.c (rb_str_format): support %a format. [ruby-dev:40650]

Browse source 
* missing/vsnprintf.c (BSD_vfprintf): ditto.

* missing/vsnprintf.c (cvt): ditto.

* util.c (BSD__hdtoa): added.  This is 2-clause BSDL licensed
  by David Schultz and from FreeBSD.

* LEGAL: add about hdtoa() in util.c.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27141 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
naruse 2010-04-01 04:32:57 +00:00
parent 4d399f12d4
commit 12b2e16e21
6 changed files with 242 additions and 10 deletions
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16
sprintf.c
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@ -227,6 +227,10 @@ get_hash(volatile VALUE *hash, int argc, const VALUE *argv)
* | 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.
* a | Convert floating point argument as [-]0xh.hhhhp[+-]dd,
* | which is consisted from optional sign, "0x", fraction part
* | as hexadecimal, "p", and exponential part as decimal.
* A | Equivalent to `a', but use uppercase `X' and `P'.
*
* Field | Other Format
* ------+--------------------------------------------------------------
@ -244,7 +248,7 @@ get_hash(volatile VALUE *hash, int argc, const VALUE *argv)
* Flag | Applies to | Meaning
* ---------+---------------+-----------------------------------------
* space | bBdiouxX | Leave a space at the start of
* | eEfgG | non-negative numbers.
* | aAeEfgG | non-negative numbers.
* | (numeric fmt) | For `o', `x', `X', `b' and `B', use
* | | a minus sign with absolute value for
* | | negative values.
@ -255,19 +259,19 @@ get_hash(volatile VALUE *hash, int argc, const VALUE *argv)
* | | sprintf string.
* ---------+---------------+-----------------------------------------
* # | bBoxX | Use an alternative format.
* | eEfgG | For the conversions `o', increase the precision
* | aAeEfgG | 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',
* | | For `a', `A', `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.
* | aAeEfgG | numbers.
* | (numeric fmt) | For `o', `x', `X', `b' and `B', use
* | | a minus sign with absolute value for
* | | negative values.
@ -275,7 +279,7 @@ get_hash(volatile VALUE *hash, int argc, const VALUE *argv)
* - | 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
* | aAeEfgG | For `o', `x', `X', `b' and `B', radix-1
* | (numeric fmt) | is used for negative numbers formatted as
* | | complements.
* ---------+---------------+-----------------------------------------
@ -983,6 +987,8 @@ rb_str_format(int argc, const VALUE *argv, VALUE fmt)
case 'G':
case 'e':
case 'E':
case 'a':
case 'A':
{
VALUE val = GETARG();
double fval;