strange behavior in zsh 5.3.1

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* strange behavior in zsh 5.3.1
@ 2017-07-13 15:06 ` Francesco Giordano
  2017-07-13 15:26   ` Peter Stephenson
  0 siblings, 1 reply; 3+ messages in thread
From: Francesco Giordano @ 2017-07-13 15:06 UTC (permalink / raw)
  To: zsh-workers

[-- Attachment #1: Type: text/plain, Size: 8099 bytes --]

>
> echo {1..10}{1..
> 11}{1.. 10}{1.. 1/}{1.. 1.}{1.. 1-}{1.. 1,}{1.. 1+}{1.. 1*}{1.. 1)}{1..
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> 1^B}{1.. 1^A}{1.. 1^@}{1.. 21}{1.. 20}{1.. 2/}{1.. 2.}{1.. 2-}{1.. 2,}{1..
> 2+}{1.. 2*}{1.. 2)}{1.. 2(}{1.. 2'}{1.. 2&}{1.. 2%}{1.. 2$}{1.. 2#}{1..
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> }{1.. 2 }{1.. 2^H}{1.. 2^G}{1.. 2^F}{1.. 2^E}{1.. 2^D}{1.. 2^C}{1..
> 2^B}{1.. 2^A}{1.. 2^@}{1.. 31}{1.. 30}{1.. 3/}{1.. 3.}{1.. 3-}{1.. 3,}{1..
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> 4^B}{1.. 4^A}{1.. 4^@}{1.. 51}{1.. 50}{1.. 5/}{1.. 5.}1}��L� 5.}0}��L�
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> 5^Z}{1.. 5^Y}{1.. 5^X}{1.. 5^W}{1.. 5^V}{1.. 5^U}{1.. 5^T}{1.. 5^S}{1..
> 5^R}{1.. 5^Q}{1.. 5^P}{1.. 5^O}{1.. 5^N}{1.. 5^M}{1.. 5^L}{1.. 5^K}{1.. 5
> }{1.. 5 }{1.. 5^H}{1.. 5^G}{1.. 5^F}{1.. 5^E}{1.. 5^D}{1.. 5^C}{1..
> 5^B}{1.. 5^A}{1.. 5^@}{1.. 61}{1.. 60}{1.. 6/}{1.. 6.}{1.. 6-}{1.. 6,}{1..
> 6+}{1.. 6*}{1.. 6)}{1.. 6(}{1.. 6'}{1.. 6&}{1.. 6%}{1.. 6$}{1.. 6#}{1..
> 6"}{1.. 6!}{1.. 6 }{1.. 6^_}{1.. 6^^}{1.. 6^]}{1.. 6^\}{1.. 6^[}{1..
> 6^Z}{1.. 6^Y}{1.. 6^X}{1.. 6^W}{1.. 6^V}{1.. 6^U}{1.. 6^T}{1.. 6^S}{1..
> 6^R}{1.. 6^Q}{1.. 6^P}{1.. 6^O}{1.. 6^N}{1.. 6^M}{1.. 6^L}{1.. 6^K}{1.. 6
> }{1.. 6 }{1.. 6^H}{1.. 6^G}{1.. 6^F}{1.. 6^E}{1.. 6^D}{1.. 6^C}{1..
> 6^B}{1.. 6^A}{1.. 6^@}{1.. 71}{1.. 70}{1.. 7/}{1.. 7.}1}�L� 7.}0}�L�
> 7.}/}�L� 7.}.}�L� 7.}-}�L� 7.},}�L� 7.}+}�L� 7.}*}�L� 7.})}�L� 7.}(}�L�
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> 7^X}{1.. 7^W}{1.. 7^V}{1.. 7^U}{1.. 7^T}{1.. 7^S}{1.. 7^R}{1.. 7^Q}{1..
> 7^P}{1.. 7^O}{1.. 7^N}{1.. 7^M}{1.. 7^L}{1.. 7^K}{1.. 7
> }{1.. 7 }{1.. 7^H}{1.. 7^G}{1.. 7^F}{1.. 7^E}{1.. 7^D}{1.. 7^C}{1..
> 7^B}{1.. 7^A}{1.. 7^@}{1.. 81}{1.. 80}{1.. 8/}{1.. 8.}{1.. 8-}{1.. 8,}{1..
> 8+}{1.. 8*}{1.. 8)}{1.. 8(}{1.. 8'}{1.. 8&}{1.. 8%}{1.. 8$}{1.. 8#}{1..
> 8"}{1.. 8!}{1.. 8 }{1.. 8^_}{1.. 8^^}{1.. 8^]}{1.. 8^\}{1.. 8^[}{1..
> 8^Z}{1.. 8^Y}{1.. 8^X}{1.. 8^W}{1.. 8^V}{1.. 8^U}{1.. 8^T}{1.. 8^S}{1..
> 8^R}{1.. 8^Q}{1.. 8^P}{1.. 8^O}{1.. 8^N}{1.. 8^M}{1.. 8^L}{1.. 8^K}{1.. 8
> }{1.. 8 }{1.. 8^H}{1.. 8^G}{1.. 8^F}{1.. 8^E}{1.. 8^D}{1.. 8^C}{1..
> 8^B}{1.. 8^A}{1.. 8^@}{1.. 91}{1.. 90}{1.. 9/}{1.. 9.}1}.�L� 9.}0}.�L�
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> 9"}{1.. 9!}{1.. 9 }{1.. 9^_}{1.. 9^^}{1.. 9^]}{1.. 9^\}{1.. 9^[}{1..
> 9^Z}{1.. 9^Y}{1.. 9^X}{1.. 9^W}{1.. 9^V}{1.. 9^U}{1.. 9^T}{1.. 9^S}{1..
> 9^R}{1.. 9^Q}{1.. 9^P}{1.. 9^O}{1.. 9^N}{1.. 9^M}{1.. 9^L}{1.. 9^K}{1.. 9
> }{1.. 9 }{1.. 9^H}{1.. 9^G}{1.. 9^F}{1.. 9^E}{1.. 9^D}{1.. 9^C}{1..
> 9^B}{1.. 9^A}{1.. 9^@}{1.. 10{1..
>

No idea why it has this behavior, it yould print numbers1 to 10 followe by
{1..'

> echo {1..10}{1..
> 1{1.. 2{1.. 3{1.. 4{1.. 5{1.. 6{1.. 7{1.. 8{1.. 9{1.. 10{1..
>

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: strange behavior in zsh 5.3.1
  2017-07-13 15:06 ` strange behavior in zsh 5.3.1 Francesco Giordano
@ 2017-07-13 15:26   ` Peter Stephenson
  2017-07-13 16:08     ` Peter Stephenson
  0 siblings, 1 reply; 3+ messages in thread
From: Peter Stephenson @ 2017-07-13 15:26 UTC (permalink / raw)
  To: Francesco Giordano, zsh-workers

On Thu, 13 Jul 2017 17:06:34 +0200
Francesco Giordano <nhoyadx@gmail.com> wrote:
> > echo {1..10}{1..

Definitely a bug in brace handling, which the shell even picks up in
debug mode...

 glob.c:2248: BUG: unmatched brace in xpandbraces()

I'm guessing the existing pair of braces make it cavalier about
interpreting the last one.

pws


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: strange behavior in zsh 5.3.1
  2017-07-13 15:26   ` Peter Stephenson
@ 2017-07-13 16:08     ` Peter Stephenson
  0 siblings, 0 replies; 3+ messages in thread
From: Peter Stephenson @ 2017-07-13 16:08 UTC (permalink / raw)
  To: Peter Stephenson, zsh-workers

On Thu, 13 Jul 2017 16:26:21 +0100
Peter Stephenson <p.stephenson@samsung.com> wrote:
> On Thu, 13 Jul 2017 17:06:34 +0200
> Francesco Giordano <nhoyadx@gmail.com> wrote:
> > > echo {1..10}{1..
> 
> Definitely a bug in brace handling, which the shell even picks up in
> debug mode...
> 
>  glob.c:2248: BUG: unmatched brace in xpandbraces()
> 
> I'm guessing the existing pair of braces make it cavalier about
> interpreting the last one.

It's slightly more complicated than that... the first expansion takes
place, then the second should find there isn't a pair of braces left.
However, we're not checking for the null at the end of the string
properly, and if we skip that we find a brace a bit later on in memory.

It's not supposed to do that.

pws

diff --git a/Src/glob.c b/Src/glob.c
index af5d082..c9ec97e 100644
--- a/Src/glob.c
+++ b/Src/glob.c
@@ -2194,6 +2194,8 @@ bracechardots(char *str, convchar_t *c1p, convchar_t *c2p)
 	pnext[0] != '.' || pnext[1] != '.')
 	return 0;
     pnext += 2;
+    if (!*pnext)
+	return 0;
     if (itok(*pnext)) {
 	if (*pnext == Inbrace)
 	    return 0;
diff --git a/Test/D09brace.ztst b/Test/D09brace.ztst
index 3e667a8..580ed43 100644
--- a/Test/D09brace.ztst
+++ b/Test/D09brace.ztst
@@ -112,3 +112,7 @@
   print -r left{[..]}right
 0:{char..char} ranges with tokenized characters
 >left[right left\right left]right
+
+  print -r {1..10}{..
+0:Unmatched braces after matched braces are left alone.
+>1{.. 2{.. 3{.. 4{.. 5{.. 6{.. 7{.. 8{.. 9{.. 10{..


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2017-07-13 16:08 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2017-07-13 15:06 ` strange behavior in zsh 5.3.1 Francesco Giordano
2017-07-13 15:26   ` Peter Stephenson
2017-07-13 16:08     ` Peter Stephenson

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