+let help = "Usage: xhtbl [ -LX | -O <dir> | -d0 | -d1 | -d2 | -e1 | -e2 | -p0 | -p1 | -p2 | <file> ]*"
+let help_L = " Output lexer tokens"
+let help_O = "<dir> Set this output directory"
+let help_X = " Clear all options"
+let help_b = "<uri> Set this base uri for relative links"
+let help_d0 = " Output table contents after phase zero (parsing)"
+let help_d1 = " Output table contents after phase one (sizing)"
+let help_d2 = " Output table contents after phase two (filling)"
+let help_e1 = " Disabled"
+let help_e2 = " Output debug information during phase two (filling)"
+let help_p0 = " Process until phase zero (parsing)"
+let help_p1 = " Process until phase one (sizing)"
+let help_p2 = " Process until phase two (filling)"