[gentoo-user] Re: emerge of ksh93 erroring out.. who can interpret

[reader@newsguy.com]

Alan McKinnon <alan.mckinnon@gmail.com> writes:


[...]

>> Can anyone interpret this emerge failure and have some educated
>> guesses what I should do to get it to compile.  That message follows
>> the eix output below.
>
> http://forums.gentoo.org/viewtopic-p-4210019.html?sid=a282fd302189d999924b214267ec5b90
>
> especially last 4 posts
>
> Apparently it's a bug, and has been fixed in later versions. You are 
> using a stable 2004 version, in your position I would unmask ksh and 
> emerge the latest unstable

I see... thanks.  That does sound like a way around it.,

I may just start using bash instead for the future...
Having this happen has made me rethink my ( non-thought out) choice of
shells.

I see where it can cause some grief at a time when you don't want to
be horsing around with that kind of problem.  

I'm not a very sophisticated shell script programmer.

One thing I liked about ksh93 was its ability to match on regex.
Something bash couldn't do not so long ago.  I haven't been paying
attention to bash development but having this problem, I did start
investigating and finding that modern bash can do most if not all of
what I liked about ksh93.   

It can match like this 

  if [[ $1 =~ ^[0-9]+$ ]];then 
      [...]
  fi

Forcing a match of number only by regex.  Instead of trying to do it
with a pattern match. 

And a sort of double reverse loop de loop negation I sometimes find
useful. (since there is no `!~'  operator like perl or awk) 

  if [[ ! ( $1 =~ ^[0-9]+$ )]];then
      [...]
  fi

I'm beginning to think I may just drop ksh93.  Unfortunately, I've
grown quite accustomed to using `print' instead of `echo -e' so I will
have to replace that in a couple dozen scripts... otherwise the
scripts seem to run fine under bash. (so far.. I haven't tested all of
them yet)


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