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* class.c (rb_scan_args): Allow specifying the number of trailing

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mandatory arguments right after the number of optional arguments
  only if the number of leading mandatory arguments is not omitted.

* ext/socket/tcpserver.c (tcp_svr_init): Make use of it.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@22603 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
knu 2009-02-24 15:41:39 +00:00
parent 02316f11d5
commit 400ded9338
5 changed files with 23 additions and 9 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
Wed Feb 25 00:41:21 2009 Akinori MUSHA <knu@iDaemons.org>
* class.c (rb_scan_args): Allow specifying the number of trailing
mandatory arguments right after the number of optional arguments
only if the number of leading mandatory arguments is not omitted.
* ext/socket/tcpserver.c (tcp_svr_init): Make use of it.
Wed Feb 25 00:15:15 2009 Yukihiro Matsumoto <matz@ruby-lang.org>
* ext/curses/curses.c (curses_colors): new method added. a patch

3
README.EXT
View file

@ -1081,9 +1081,10 @@ as follows:
--
scan-arg-spec := param-arg-spec [block-arg-spec]
param-arg-spec := pre-arg-spec [post-arg-spec] / post-arg-spec
param-arg-spec := pre-arg-spec [post-arg-spec] / post-arg-spec / pre-opt-post-arg-spec
pre-arg-spec := num-of-leading-mandatory-args [num-of-optional-args]
post-arg-spec := sym-for-variable-length-args [num-of-trailing-mandatory-args]
pre-opt-post-arg-spec := num-of-leading-mandatory-args num-of-optional-args num-of-trailing-mandatory-args
block-arg-spec := sym-for-block-arg
num-of-leading-mandatory-args := DIGIT ; The number of leading

7
README.EXT.ja
View file

@ -1180,16 +1180,17 @@ rb_scan_args(int argc, VALUE *argv, const char *fmt, ...)
--
scan-arg-spec := param-arg-spec [block-arg-spec]
param-arg-spec := pre-arg-spec [post-arg-spec] / post-arg-spec
param-arg-spec := pre-arg-spec [post-arg-spec] / post-arg-spec / pre-opt-post-arg-spec
pre-arg-spec := num-of-leading-mandatory-args [num-of-optional-args]
post-arg-spec := sym-for-variable-length-args [num-of-trailing-mandatory-args]
pre-opt-post-arg-spec := num-of-leading-mandatory-args num-of-optional-args num-of-trailing-mandatory-args
block-arg-spec := sym-for-block-arg
num-of-leading-mandatory-args := DIGIT ; 先頭に置かれる省略不可能な引数の数
num-of-leading-mandatory-args := DIGIT ; 先頭に置かれる省略不能な引数の数
num-of-optional-args := DIGIT ; 続いて置かれる省略可能な引数の数
sym-for-variable-length-args := "*" ; 続いて置かれる可変長引数を
; Rubyの配列で取得するための指定
num-of-trailing-mandatory-args := DIGIT ; 終端に置かれる省略不可能な引数の数
num-of-trailing-mandatory-args := DIGIT ; 終端に置かれる省略不能な引数の数
sym-for-block-arg := "&" ; イテレータブロックを取得するための
; 指定
--

6
class.c
View file

@ -934,6 +934,11 @@ rb_scan_args(int argc, const VALUE *argv, const char *fmt, ...)
if (ISDIGIT(*p)) {
n_opt = *p - '0';
p++;
if (ISDIGIT(*p)) {
n_trail = *p - '0';
p++;
goto block_arg;
}
}
}
if (*p == '*') {
@ -944,6 +949,7 @@ rb_scan_args(int argc, const VALUE *argv, const char *fmt, ...)
p++;
}
}
block_arg:
if (*p == '&') {
f_block = 1;
p++;

8
ext/socket/tcpserver.c
View file

@ -26,12 +26,10 @@
static VALUE
tcp_svr_init(int argc, VALUE *argv, VALUE sock)
{
VALUE arg1, arg2;
VALUE hostname, port;
if (rb_scan_args(argc, argv, "11", &arg1, &arg2) == 2)
return init_inetsock(sock, arg1, arg2, Qnil, Qnil, INET_SERVER);
else
return init_inetsock(sock, Qnil, arg1, Qnil, Qnil, INET_SERVER);
rb_scan_args(argc, argv, "011", &hostname, &port);
return init_inetsock(sock, hostname, port, Qnil, Qnil, INET_SERVER);
}
/*