-in the pragma; it should say \tr{_S_ <string>}. The \tr{<string>}
-gives the strictness of the function's arguments. \tr{L} is lazy
-(bad), \tr{S} and \tr{E} are strict (good), \tr{P} is ``primitive'' (good),
-\tr{U(...)} is strict and
-``unpackable'' (very good), and \tr{A} is absent (very good).
+in the pragma; it should say @_S_ <string>@. The @<string>@
+gives the strictness of the function's arguments. @L@ is lazy
+(bad), @S@ and @E@ are strict (good), @P@ is ``primitive'' (good),
+@U(...)@ is strict and
+``unpackable'' (very good), and @A@ is absent (very good).