I believe some terminals had the ability to shift between different modes (AxB and CxD; where the letters are $COLUMNSx$LINES) but am not aware if that is implemented by the console drivers.
Generally it's considered a program problem: vi for example treats it as one line unless something like wrapmargin is set. Like wise ksh will `scroll` the line edit if your typing gets to close to the right margin.
Someone here might be able to speak from a greater depth of experience, which is why I glanced over that ^ part in my previous post.
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Thou shalt check the array bounds of all strings (indeed, all arrays), for surely where thou typest ``foo'' someone someday shall type ``supercalifragilisticexpialidocious''.
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