* parse.y (primary): make functional-style not operator to act

  like function.  see <http://d.hatena.ne.jp/ku-ma-me/20080624/p1>.

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@17573 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

5 files changed, 21 insertions, 5 deletions

diff --git a/ChangeLog b/ChangeLog
index a6c438658..97b5744a3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Jun 25 21:54:34 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* parse.y (primary): make functional-style not operator to act
+	  like function.  see <http://d.hatena.ne.jp/ku-ma-me/20080624/p1>.
+
 Wed Jun 25 15:28:50 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* array.c (rb_ary_fill): not depend on unspecified behavior at integer
diff --git a/keywords b/keywords
index 504d5230b..f0d82a766 100644
--- a/keywords
+++ b/keywords
@@ -31,7 +31,7 @@ in, {keyword_in, keyword_in}, EXPR_VALUE
 module, {keyword_module, keyword_module}, EXPR_VALUE
 next, {keyword_next, keyword_next}, EXPR_MID
 nil, {keyword_nil, keyword_nil}, EXPR_END
-not, {keyword_not, keyword_not}, EXPR_VALUE
+not, {keyword_not, keyword_not}, EXPR_ARG
 or, {keyword_or, keyword_or}, EXPR_VALUE
 redo, {keyword_redo, keyword_redo}, EXPR_END
 rescue, {keyword_rescue, modifier_rescue}, EXPR_MID
diff --git a/lex.c.blt b/lex.c.blt
index 7bf3a8264..ea2068664 100644
--- a/lex.c.blt
+++ b/lex.c.blt
@@ -1,5 +1,5 @@
-/* C code produced by gperf version 3.0.2 */
-/* Command-line: gperf --output-file=lex.c.tmp -C -p -j1 -i 1 -g -o -t -N rb_reserved_word -k'1,3,$' keywords  */
+/* C code produced by gperf version 3.0.3 */
+/* Command-line: gperf -C -p -j1 -i 1 -g -o -t -N rb_reserved_word -k'1,3,$' keywords  */
 
 #if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
       && ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \
@@ -101,6 +101,9 @@ hash (str, len)
 
 #ifdef __GNUC__
 __inline
+#ifdef __GNUC_STDC_INLINE__
+__attribute__ ((__gnu_inline__))
+#endif
 #endif
 const struct kwtable *
 rb_reserved_word (str, len)
@@ -123,7 +126,7 @@ rb_reserved_word (str, len)
 #line 42 "keywords"
       {"then", {keyword_then, keyword_then}, EXPR_BEG},
 #line 34 "keywords"
-      {"not", {keyword_not, keyword_not}, EXPR_VALUE},
+      {"not", {keyword_not, keyword_not}, EXPR_ARG},
 #line 27 "keywords"
       {"false", {keyword_false, keyword_false}, EXPR_END},
 #line 40 "keywords"
diff --git a/lex.c.src b/lex.c.src
index 504d5230b..f0d82a766 100644
--- a/lex.c.src
+++ b/lex.c.src
@@ -31,7 +31,7 @@ in, {keyword_in, keyword_in}, EXPR_VALUE
 module, {keyword_module, keyword_module}, EXPR_VALUE
 next, {keyword_next, keyword_next}, EXPR_MID
 nil, {keyword_nil, keyword_nil}, EXPR_END
-not, {keyword_not, keyword_not}, EXPR_VALUE
+not, {keyword_not, keyword_not}, EXPR_ARG
 or, {keyword_or, keyword_or}, EXPR_VALUE
 redo, {keyword_redo, keyword_redo}, EXPR_END
 rescue, {keyword_rescue, modifier_rescue}, EXPR_MID
diff --git a/parse.y b/parse.y
index 022d94741..2d82b7b61 100644
--- a/parse.y
+++ b/parse.y
@@ -2613,6 +2613,14 @@ primary		: literal
 			$$ = dispatch1(defined, $5);
 		    %*/
 		    }
+		| keyword_not '(' expr rparen
+		    {
+		    /*%%%*/
+			$$ = call_uni_op(cond($3), '!');
+		    /*%
+			$$ = dispatch2(unary, ripper_intern("not"), $3);
+		    %*/
+		    }
 		| operation brace_block
 		    {
 		    /*%%%*/