isAsciiPunctuation function

bool isAsciiPunctuation(
  1. int unit
)

Whether unit is ASCII punctuation — the set a backslash can escape.

Implementation

bool isAsciiPunctuation(int unit) =>
    (unit >= 0x21 && unit <= 0x2F) ||
    (unit >= 0x3A && unit <= 0x40) ||
    (unit >= 0x5B && unit <= 0x60) ||
    (unit >= 0x7B && unit <= 0x7E);