starting after the left margin whitespace (if any) on a line; the
characters it matches are that line's candidate for the fill prefix.
-@w{@samp{"[ \t]*\\([-|#;>*]+[ \t]*\\|(?[0-9]+[.)][ \t]*\\)*"}} is the
+@w{@code{"[ \t]*\\([-|#;>*]+[ \t]*\\|(?[0-9]+[.)][ \t]*\\)*"}} is the
default value. This matches a number enclosed in parentheses or
followed by a period, or certain punctuation characters, or any
sequence of these intermingled with whitespace. In particular, it
replaces the candidate with a string of spaces ``of the same width''
as it.
-The default value of this variable is @w{@samp{"\\`[ \t]*\\'"}}, which
+The default value of this variable is @w{@code{"\\`[ \t]*\\'"}}, which
matches only a string of whitespace. The effect of this default is to
force the fill prefixes found in one-line paragraphs always to be pure
whitespace.