{\it text}, with the text in {\it replacement} and return number of matches
replaced (maybe $0$ if none found) or $-1$ on error.
-The replacement text may contain back references {\tt \\number} which will be
+The replacement text may contain back references {\tt $\backslash$number} which will be
replaced with the value of the corresponding subexpression in the
-pattern match. {\tt \\0} corresponds to the entire match and {\tt \&} is a
+pattern match. {\tt $\backslash$0} corresponds to the entire match and {\tt \&} is a
synonym for it. Backslash may be used to quote itself or {\tt \&} character.
{\it maxMatches} may be used to limit the number of replacements made, setting