# 0..:" dumps core

**URL:** <https://www.ruby-forum.com/t/0-dumps-core/108050>\
**Category:** Development\
**Created:** [June 28, 2007, 7:03pm UTC](https://www.ruby-forum.com/t/0-dumps-core/108050 "2007-06-28T19:03:58Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Yusuke\_ENDOH](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/c89c15/32.png) [@Yusuke\_ENDOH](https://www.ruby-forum.com/u/Yusuke_ENDOH)\
**Post date:** [June 28, 2007, 7:03pm UTC](https://www.ruby-forum.com/t/0-dumps-core/108050/1 "2007-06-28T19:03:58Z")

</div>

e$B1sF#$H?=$7$^$9!#e(B

1.8.6 e$B!"e(B1.9 e$B6&$K0J2\<$N$h$&$K$9$k$HMn$A$^$9!#e(B

$ ./ruby -e ‘0…:"’  
-e:1: unterminated string meets end of file  
-e:1: empty symbol literal  
-e:1: [BUG] Segmentation fault  
ruby 1.8.6 (2007-06-26) [i686-linux]

e$B%"%!\<%H$7$^$7$?e(B (core dumped)

e$B$H$j$"$($:0J2\<$N%Q%C%Ae(B (ruby 1.8 e$BMQe(B)  
e$B$GMn$A$J$/$J$j$^$7$?$,!"e(B  
e$BA4A3$o$+$C$F$J$$$N$GE,Ev$K8+$F$/$@$5$$!#e(B

# Index: parse.y

— parse.y (revision 12652)  
+++ parse.y (working copy)  
@@ -2142,11 +2142,13 @@  
dsym : tSYMBEG xstring\_contents tSTRING\_END  
{  
lex\_state = EXPR\_END;

- 

```
 if (!($$ = $2)) {

```

- 

```
 if (!$2) {

```

- 

```
     $$ = NEW_NIL();
     yyerror("empty symbol literal");
 }
 else {
     VALUE lit;

```

- 

```
   $$ = $2;

     switch (nd_type($$)) {
       case NODE_DSTR:
```