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Re: Which commit for a bug in 4.3.48 which is fixed in 4.4.23


From: Eduardo A . Bustamante López
Subject: Re: Which commit for a bug in 4.3.48 which is fixed in 4.4.23
Date: Fri, 21 Sep 2018 09:52:29 -0700
User-agent: Mutt/1.10.1 (2018-07-13)

On Fri, Sep 21, 2018 at 01:11:38PM +0200, Dr. Werner Fink wrote:
> Hi,
> 
> with 4.3.48 the line
> 
>   T="";echo ">${T//*/ }<"
> 
> leads to
> 
>   ><
> 
> but with 4.4.23 the correct result is given back
> 
>   > <
> 
> in the git repro I do not find any useful login entry for this

Check commit 34ec1876071b76d3654a418682e3f34ca9a72f1a:

+lib/glob/gmisc.c
+       - match_pattern_char, match_pattern_wchar: if passed an empty string,
+         return a match if the first character of the pattern is `*'
+
+subst.c
+       - pat_subst: change to allow empty strings to be replaced as long as
+         pattern matches empty string.  Report and fix from isabella parakiss
+         <address@hidden>

In particular, this change to match_pattern:

@@ -4435,7 +4437,7 @@ match_pattern (string, pat, mtype, sp, ep)
   size_t slen, plen, mslen, mplen;
 #endif

-  if (string == 0 || *string == 0 || pat == 0 || *pat == 0)
+  if (string == 0 || pat == 0 || *pat == 0)
     return (0);



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