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author | nagachika <nagachika@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-03-24 17:02:39 +0000 |
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committer | nagachika <nagachika@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-03-24 17:02:39 +0000 |
commit | 8f96c404824edf2013c4377ee041e0800283307b (patch) | |
tree | 2908118f5fa5b690013ab945ef02c2ec19b7611d /complex.c | |
parent | 0d7d3a80dd2e64951297b3122d5055fc1ff40091 (diff) |
merge revision(s) 39677,39695: [Backport #8068]
* complex.c: described syntax of string form.
* rational.c: ditto.
* complex.c: edited rdoc.
* rational.c: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@39918 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'complex.c')
-rw-r--r-- | complex.c | 24 |
1 files changed, 24 insertions, 0 deletions
@@ -483,6 +483,28 @@ f_complex_new2(VALUE klass, VALUE x, VALUE y) * * Complex(1, 2) #=> (1+2i) * Complex('1+2i') #=> (1+2i) + * + * Syntax of string form: + * + * string form = extra spaces , complex , extra spaces ; + * complex = real part | [ sign ] , imaginary part + * | real part , sign , imaginary part + * | rational , "@" , rational ; + * real part = rational ; + * imaginary part = imaginary unit | unsigned rational , imaginary unit ; + * rational = [ sign ] , unsigned rational ; + * unsigned rational = numerator | numerator , "/" , denominator ; + * numerator = integer part | fractional part | integer part , fractional part ; + * denominator = digits ; + * integer part = digits ; + * fractional part = "." , digits , [ ( "e" | "E" ) , [ sign ] , digits ] ; + * imaginary unit = "i" | "I" | "j" | "J" ; + * sign = "-" | "+" ; + * digits = digit , { digit | "_" , digit }; + * digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" ; + * extra spaces = ? \s* ? ; + * + * See String#to_c. */ static VALUE nucomp_f_complex(int argc, VALUE *argv, VALUE klass) @@ -1825,6 +1847,8 @@ string_to_c_strict(VALUE self) * '-0.0-0.0i'.to_c #=> (-0.0-0.0i) * '1/2+3/4i'.to_c #=> ((1/2)+(3/4)*i) * 'ruby'.to_c #=> (0+0i) + * + * See Kernel.Complex. */ static VALUE string_to_c(VALUE self) |