you have a string that looks like
$string='GAP_SPAN09 - GAP SPAN base (Scratch Testing [TSMC11] : tsmc11_wld(sxfatd12j)) GAP_SPAN03 - GAP SPAN base (DFD E2E Testing [TSPAN04] : tspan04-dfdint-wld(sxfamd6f)) POS_WLI02 - POS_WLI02 Web Logic Integrator';
Thus @array=$string=~/PATTERN/g is the syntax you need.
The PATTERN is to capture a series of non space characters if they are followed by the ' - ' pattern.
If you need more help than that:
~/$ perl -e '$string=q(GAP_SPAN09 - GAP SPAN base (Scratch Testing [TS
+MC11] : tsmc11_wld(sxfatd12j)) GAP_SPAN03 - GAP SPAN base (DFD E2E Te
+sting [TSPAN04] : tspan04-dfdint-wld(sxfamd6f)) POS_WLI02 - POS_WLI02
+ Web Logic Integrator);@array=$string=~m/(\S+)(?= - )/g;for $record_t
+itle (@array){print "$record_title\n";}'
GAP_SPAN09
GAP_SPAN03
POS_WLI02
print "Good ",qw(night morning afternoon evening)[(localtime)[2]/6]," fellow monks."
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