Morse code translator

Morse is a variable-length code: E is one dot, Q is four symbols. That variability is why it needs explicit separators, and why most failed Morse decodes are separator problems rather than translation problems.

It also has no case, no punctuation beyond a handful of prosigns, and no braces - so a Morse-encoded flag always arrives as bare uppercase letters and digits that you must reassemble into the expected format yourself. Expect to add the braces and underscores back by hand, and do not conclude the decode failed because the result does not look like a flag yet.

The separator is the whole difficulty

• One space between letters, three (or /, or |) between words. Challenges use all of these.
• Dots and dashes may arrive as ./-, ·/—, 0/1, or even a/b. Substitute before decoding.
• Morse with no separators at all is ambiguous by construction and usually means you are meant to recover timing from somewhere else - an audio file, a blinking light in a GIF, a column of a spreadsheet.