Parenthesis

MrEd provides general-purpose ``parenthesis''-matching utilities that work on buffers. The utilities are paramerized with respect to:

• parens -- Pairs (cons cells) of opening and closing bracket strings. These brackets can be nested and must be balanced. The opening and closing string do not have to be different.
• quotes -- Pairs of opening and closing quote bracket strings. Within a pair of quotes, all other bracket, quote, and comment strings are ignored. Pairs of quote strings do not have to correspond to quotes in the language. For example, C comments using ``/*'' and ``*/'' are considered quotes for parenthesis-matching purposes.
• comments -- A list of comment-starting strings. Comments of this form run until the end of the line.

A backslash (\) is assumed to be the (only) method for escaping parenthesis, quote, and comment markers. The parenthesis-balancing utilities are only guaranteed to act meaningfully when the starting position is outside quoted and commented expressions. When a pair of opening and closing brackets are not distinct, the actions on these brackets are only meaningful for searches starting outside the brackets.

• Paren Utilities