Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!cwjcc!kiwi!chet
From: chet@kiwi.CWRU.EDU (Chet Ramey)
Newsgroups: gnu.bash.bug
Subject: Re: cd in bash 0.99
Summary: Fix
Message-ID: <366@cwjcc.CWRU.Edu>
Date: 16 Jun 89 20:02:52 GMT
References: <8906161251.AA04266@csvax.caltech.edu>
Sender: news@cwjcc.CWRU.Edu
Reply-To: chet@cwjcc.INS.CWRU.Edu (Chet Ramey)
Distribution: gnu
Organization: CWRU Andrew R. Jennings Computing Center
Lines: 57

In article <8906161251.AA04266@csvax.caltech.edu> andy@CSVAX.CALTECH.EDU (Andy Fyfe) writes:
>It's permitted to put multiple /'s between components in a path name
>Cd, with "..", however, get's confused by this.
>	$ cd /usr/local//src
>	$ pwd
>	/usr/local/src
>	$ cd ../..
>	$ pwd
>	/usr/local

Here's a quick look at what happens after I fix it; a one-line diff for
general.c follows (note that I have aliased pwd to "echo $PWD"; this
makes no difference).

cwns5$ echo $SHLVL
2
cwns5$ cd /usr/homes/chet/src/Shells/bash////Rt-AOS/
cwns5$ pwd
/usr/homes/chet/src/Shells/bash////Rt-AOS
cwns5$ cd ../..
cwns5$ pwd
/usr/homes/chet/src/Shells/bash//
cwns5$ cd Rt-AOS/
cwns5$ ./bash
cwns5$ echo $SHLVL
3
cwns5$ cd /usr/homes/chet/src/Shells/bash////Rt-AOS/
cwns5$ pwd
/usr/homes/chet/src/Shells/bash////Rt-AOS
cwns5$ cd ../..
cwns5$ pwd
/usr/homes/chet/src/Shells
cwns5$ 

Here's the fix (your line numbers may vary; I've made other changes):

*** bash-0.99/general.c	Wed May 24 21:16:07 1989
--- src-0.99/general.c	Fri Jun 16 15:22:59 1989
***************
*** 293,297
    while (n--)
      {
!       if (*p == '/')
  	p--;
  

--- 293,297 -----
    while (n--)
      {
!       while (*p == '/')	/* skip multiple occurrences of '/' */
  	p--;
  

Chet Ramey     Network Services Group, CWRU    chet@cwjcc.INS.CWRU.Edu

"The flagon with the dragon has the potion with the poison;
	the vessel with the pestle holds the brew that is true!"