spam regex filter should search in MULTILINE mode

[wbyoung@…]

.10dev

unless there's another way to match different lines easily, i think it would make more sense to match in MULTILINE mode. For example, you could easily use a regex to avoid spam that has 4 links in it by ignoring posts that have (href|http).*(href|http).*(href|http).*(href|http) which would filter most spam, but if the poster put each link on a separate line, it doesn't get filtered.

[Matthew Good]

The spam filter is a separate plugin, so the Trac milestones don't apply.

MULTILINE mode only changes "^" and "$" to match the beginning and end of lines respectively, instead of the default where the match the beginning and end of the entire string. I guess you're asking to enable the DOTALL mode, where "." matches newlines.

Enabling DOTALL mode could slow down matching and lead to undesired results with simpler expressions. Instead, "(.|\n)*" without DOTALL should match anything that ".*" would in DOTALL mode.