[Bug #20988] [prism] Fix escaped octal character literals

nobu · nobu · commit a33c944ba8a0 · 2024-12-29T10:32:33.000+09:00
diff --git a/prism/prism.c b/prism/prism.c
@@ -9728,6 +9728,7 @@ escape_read(pm_parser_t *parser, pm_buffer_t *buffer, pm_buffer_t *regular_expre
                 }
             }
 
+            value = escape_byte(value, flags);
             escape_write_byte(parser, buffer, regular_expression_buffer, flags, value);
             return;
         }
diff --git a/test/ruby/test_literal.rb b/test/ruby/test_literal.rb
@@ -101,6 +101,8 @@ def test_string
     assert_raise(SyntaxError) {eval('"\C-\\' "\u3042" '"')}
     assert_raise(SyntaxError) {eval('"\M-' "\u3042" '"')}
     assert_raise(SyntaxError) {eval('"\M-\\' "\u3042" '"')}
+
+    assert_equal "\x09 \xC9 \x89", eval('"\C-\111 \M-\111 \M-\C-\111"')
   ensure
     $VERBOSE = verbose_bak
   end

Original file line number	Diff line number	Diff line change
`@@ -9728,6 +9728,7 @@ escape_read(pm_parser_t parser, pm_buffer_t buffer, pm_buffer_t *regular_expre`
`9728`	`9728`	`}`
`9729`	`9729`	`}`
`9730`	`9730`
	`9731`	`+ value = escape_byte(value, flags);`
`9731`	`9732`	`escape_write_byte(parser, buffer, regular_expression_buffer, flags, value);`
`9732`	`9733`	`return;`
`9733`	`9734`	`}`