coffee script split function based on two conditions

Question

Trying to tweak a plugin written in coffee script. have a condition to split a string with delimiter pipe '|' if this pipe character is not escaped as '\\|' .

"plus\+ | qual\= | pipe\| | minus\-".split'|'

i tried to achieve this with by adding a space .split(' |') , but sometimes it's not true.

Answer 1

Using .split when the delimiter can be escaped is hard to get right, if you take escaped backslashes into account. Easier to match everything but the unescaped delimiters.

s = "plus\\+ | qual\\= | pipe\\| | minus\\-"
result = s.match(/(?:\\.|[^\\\|])+/g)

alert result