[−][src]Function fl::smush::hrule4_smush
pub fn hrule4_smush(ch1: u8, ch2: u8) -> Option<u8>
Rule 4: OPPOSITE PAIR SMUSHING (code value 8)
Smushes opposing brackets ("[]" or "]["), braces ("{}" or "}{") and parentheses ("()" or ")(") together, replacing any such pair with a vertical bar ("|").