Which means 
<<"START"   ok (interpolates)
<<'START'   ok (doesn't interpolate)
<<START     Same as <<"START"

<< "START"  Same as <<"START"
<< 'START'  Same as <<'START'
<< START    bad

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In reply to Re^2: appending xml to string by ikegami
in thread appending xml to string by shreya

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