get_next_filename(), use a long instead of an int for the number
prepended to the filename; and in num_of_digits(), use a ssize_t instead
of an int


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instead of "", since the latter is not necessarily translated as ""


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regexec() is needed for glibc 2.2.3


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the NO_CONVERT flag is used, as it will be practically impossible to get
right (since displayed non-editable strings should always be parsed as
UTF-8, whether the edited text is or not, and the switching back and
forth between raw and normal mode when editing text and displaying it
will be far too complicated)


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separate regexes of no more than 256 bytes, as POSIX-compliant regexp
implementations can reject regexes of over 256 bytes


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so that they work properly again


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subsequent null termination both take the proper number of bytes when
using multibyte characters, so that multibyte prompt strings aren't
prematurely cut off


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the "Insert File" prompt would always result in the current answer's
being used as the filename afterward


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breaking overly long help text up into separate chunks, and add a few
wording fixes to the help text as well


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defines it


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regexes


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a flag properly


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is defined


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needed


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calls


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