$` can often be replaced by (.*?) at the head of a regular expression. But how can
$` be replaced if one wants to do a global substitution with /g? For example, how
can 
s<(\w+)/><$`$1\n>g

[download]
be replaced by some variation that uses (.*?) or something close to it?

(To clarify, the substitution above replaces each match with a substring extending
from the beginning of the string through the last character of the match. So
Call/me/Ishmael/
becomes
Call
Call/me
Call/me/Ishmael
after the substitution.)

Thanks,
––John

In reply to replacing $` with ordinary capturing in global substitutions by jbullock35

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