Bisarre comma

Ruby Development
1

Issue #3456 has been updated by Koichi Sasada.

長期的な展望としては，この件はどうなるべきでしょうか．

Bug #3456: bisarre comma

Author: Shyouhei U.
Status: Assigned
Priority: Normal
Assignee: Yukihiro M.
Category: core
Target version: 1.9.x
ruby -v: ruby 1.9.3dev (2010-06-19 trunk 28363) [x86_64-linux]

=begin
ひょっとして意図的なのかもしれませんが、以下のような謎の , が1.9系でSyntax OKになるのはなんででしょう?

% ruby -wcve ‘x y , ;’
ruby 1.8.8dev (2010-06-15 revision 27061) [x86_64-linux]
-e:1: syntax error, unexpected ‘;’
% ruby -wcve ‘x y , ;’
ruby 1.9.3dev (2010-06-19 trunk 28363) [x86_64-linux]
Syntax OK
=end

2

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In message “Re: [ruby-dev:43717] [Ruby 1.9 - Bug #3456] bisarre comma”
on Sat, 11 Jun 2011 15:06:24 +0900, Koichi Sasada
[email protected] writes:

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3

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4

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In message “Re: [ruby-dev:43755] Re: [Ruby 1.9 - Bug #3456] bisarre
comma”
on Sun, 12 Jun 2011 00:17:05 +0900, Urabe S.
[email protected] writes:

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In message “Re: [ruby-dev:43759] Re: [Ruby 1.9 - Bug #3456] bisarre
comma”
on Sun, 12 Jun 2011 03:14:43 +0900, Urabe S.
[email protected] writes:

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|
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diff --git a/parse.y b/parse.y
index 459cd8b…c48036b 100644
— a/parse.y
+++ b/parse.y
@@ -2418,6 +2418,10 @@ opt_paren_args : none

opt_call_args : none
| call_args

  • | args ‘,’
  •    {

  •      $$ = $1;

  •    }
    ;

call_args : command
@@ -2491,10 +2495,6 @@ opt_block_arg : ‘,’ block_arg
{
$$ = $2;
}

  • | ‘,’
  •    {

  •  $$ = 0;

  •    }
    | none
    {
    $$ = 0;
6

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7

(06/12/2011 03:55 AM), Yukihiro M. wrote:

$B$^$D$b$H(B $B$f$-$R$m$G$9(B

In message “Re: [ruby-dev:43760] Re: [Ruby 1.9 - Bug #3456] bisarre comma”
on Sun, 12 Jun 2011 03:33:57 +0900, Yukihiro M. [email protected]
writes:

|$B$$$d!“8+Mn$H$7$,$”$C$?$N$O;v<B$G?=$7Lu$J$$!#$H$j$“$($:$3$s$J(B
|$B%Q%C%A$r=q$$$F8+$^$7$?!#$A$g$C$HM>M5$,$J$$$N$G%F%9%H$G$-$F$^(B
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$B$^$;$s!#(B

8

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In message “Re: [ruby-dev:43760] Re: [Ruby 1.9 - Bug #3456] bisarre
comma”
on Sun, 12 Jun 2011 03:33:57 +0900, Yukihiro M.
[email protected] writes:

|$B$$$d!“8+Mn$H$7$,$”$C$?$N$O;v<B$G?=$7Lu$J$$!#$H$j$“$($:$3$s$J(B
|$B%Q%C%A$r=q$$$F8+$^$7$?!#$A$g$C$HM>M5$,$J$$$N$G%F%9%H$G$-$F$^(B
|$B$;$s!#KvHx$,(Bassoc$B$,%1!<%9$O$I$&$7$h$&$+$J$”!#(B

$BKvHx(Bassoc$B$N8e$m$K$b%+%s%^$r5v$9%Q%C%A!#(B

— a/parse.y
+++ b/parse.y
@@ -2418,6 +2418,18 @@ opt_paren_args : none

opt_call_args : none
| call_args

  • | args ‘,’
  •    {

  •      $$ = $1;

  •    }
  • | args ‘,’ assocs ‘,’
  •    {

  •    /*%%%*/

  •  $$ = arg_append($1, NEW_HASH($3));

  •    /*%

  •  $$ = arg_add_assocs($1, $3);

  •    %*/

  •    }
    ;

call_args : command
@@ -2491,10 +2503,6 @@ opt_block_arg : ‘,’ block_arg
{
$$ = $2;
}

  • | ‘,’
  •    {

  •  $$ = 0;

  •    }
    | none
    {
    $$ = 0;
9

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In message “Re: [ruby-dev:43765] Re: [Ruby 1.9 - Bug #3456] bisarre
comma”
on Sun, 12 Jun 2011 15:05:51 +0900, Urabe S.
[email protected] writes:

|> $BKvHx(Bassoc$B$N8e$m$K$b%+%s%^$r5v$9%Q%C%A!#(B
|
|$B<j85$G3NG’$7$F$_$?46$8$H$7$F$O!“$h$5$=$&$K;W$$$^$9!#>/$J$/$H$b4{B8$N%F%9(B
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|$B$^$;$s!#(B

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