Does it make any sense to match the character after $? It must be a newline. Similarly, the character before ^ must be a newline. So, use \n, and use the :crlf layer if needed to avoid the need to handle \r.

But I'd be interested to know the rules for parsing the regexes, too. 

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

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In reply to Re: Disambuating $ in (especially /m) regexps by choroba
in thread Disambuating $ in (especially /m) regexps by tlhackque

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