Re: Flex 2.5.31 m4 bug

[John]

>      /* message in -> [unstuff] -> parse -> [[stuff] -> message out] */

Currently, it is invalid to have the sequences [[ or ]] anywhere
within the flex input, as they are the quote sequences for the m4
processing phase. This is documented in the manual under the appendix
`m4 dependency'.

One obvious solution is for flex to completely parse the C code in the
input actions. A less obvious solution escapes me at the moment!

-John