erc-put-text-properties
erc-put-text-properties is a compiled Lisp function in `erc.el
'.
(erc-put-text-properties START END PROPERTIES &optional OBJECT VALUE-LIST)
Set text-properties for OBJECT.
START and END describe positions in OBJECT.
If VALUE-LIST is nil, set each property in PROPERTIES to t, else set
each property to the corresponding value in VALUE-LIST.