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When compiling the fold code with DEBUG defined, we get:
../lib/fold/fold.c: In function 'fold_text':
../lib/fold/fold.c:37:3: error: comparison of unsigned expression >= 0 is always true [-Werror=type-limits]
assert(bytes >= 0);
^
We should be comparing with != (size_t)-1, not >= 0
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Currently, the fold_text function doesn't understand multibyte strings,
so may break a line in the middle of a multibyte sequence.
This change adds multibyte-awareness to the fold code, and uses proper
width calculations for the contents of the folded string.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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We want to fold help text into the ncurses UI, so add a little module to
split text into lines.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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