Try this with these

abcde{BS}{BS}{BS}{BS}{BS}{BS}f
{BS}{BS}abcde{BS}{BS}{BS}{BS}{BS}c{BS}fat
A{B}{BS}S}bout
[download]

It should output:

f
fat
A{BS}bout
[download]

:-)

Yves / DeMerphq
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Software Engineering is Programming when you can't. -- E. W. Dijkstra (RIP)