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From: bfox@sbphy.ai.mit.edu (Brian Fox)
Newsgroups: gnu.bash.bug
Subject: Strange behavior with functions
Message-ID: <8912201649.AA08712@sbphy.Ucsb.EDU>
Date: 20 Dec 89 16:49:31 GMT
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   Date: 19 Dec 89 23:46:35 GMT
   From: tektronix!reed!trost@cis.ohio-state.edu  (Bill Trost)
   Sender: bug-bash-request@prep.ai.mit.edu

   The noise on alt.sources.wanted about file reversal made me come up
   with this little program:

   #!/local/bin/bash
   # Yes, all through this I should be using "$@", but that's for version
   # 1.05 (I have 1.04)

   rv () {
	   [ $# = 0 ] && {
		   # Call this block A
		   local line=empty\?\?\?
		   read line || return
		   echo Read: "$line" 2>&1
		   rv
		   echo "$line"
		   # end A
		   return
	   }
	   # Call this block B
	   local f=$1
	   shift
	   [ $# = 0 ] || rv $*
	   rv < $f
   }

   rv $*


   Now, if I run this with no arguments (using /etc/motd as stdin), it
   works on the Decstation and longjmp botches after echoing "empty" on
   the Vax.  If I run it with one argument, it does a longjmp botch after
   echoing "empty" on either machine.

   Then, if I swap blocks A and B and change the "&&" to a "||", with no
   arguments it works on the DECstation, but it prints "empty" for the
   first line and never prints the first line of the file (which should
   be printed last).

   Of course, Chet has probably already fixed it....  :-)

Probably!  But on the off chance that he hasn't, could you send me a
typescript of the session?

Thanks,

	Brian