Possible bug in gawk: local FS not used

[Jean-Philippe Guérard]

Hello,

I might have stumbled upon a gawk bug. Its seems that a local FS 
variable is not taken into account. The following script demonstrates 
this behaviour:

----------------------------------------------------------------------
#!/usr/bin/gawk -f

function test_global(){

 # FS is a global variable

 FS="1"
 getline < FILE
 print $2
 close( FILE )

}

function test_local( FS ){

 # FS is a local variable

 FS="1"
 getline < FILE
 print $2
 close( FILE )

}

BEGIN {

 FILE="/tmp/test.txt"
 system( "echo 121212 > " FILE )

 FS="2"
 print "global FS"
 test_global()

 FS="2"
 print "local FS"
 test_local()

}
----------------------------------------------------------------------

With GNU Awk 3.1.6, I get the following result:
----------------------------------------------------------------------
$ ./test.awk 
global FS
2
local FS
1
----------------------------------------------------------------------

If I understand well, when parsing the input line, the global FS 
variable is always used, even if a local FS exists.

Could you confirm if this is a bug or intended?

Thanks in advance,

Regards,


-- 
Jean-Philippe Guérard
http://tigreraye.org