Hi Rob,
I started working on fold.c cleanup,
going through the code, and testing it out, i have a couple of questions.
1. gnu fold engulfs \n unconditionally i.e if there is a \n after the fold
has happend that redundant \n does not make it to the output , that kind of
makes sense but the posix spec only mentions carriage returns and only if the
-b option is not specified. (Note* That the current pending/fold outputs an
extra new line.)
2. the current fold implementation has unfold capability , that i think
should not be squeezed in fold (as of yet), my plan is to have unfold as a
separate utility that uses infrastructure from fold if necessary, or at least
make unfold as a config option, please share your thoughts on this.
3. The tabstop thing is bit confusing for me, as the posix spec says "Tab
stops shall be at each column position n such that n modulo 8 equals 1." ( from
this i understand that given the column the next column where the tab ends
should be a column whose modulo 8 returns 1 , kind of this pseudo code ? where
start is the current column. (am i understanding it right ?)
int get_next_ts(int start)
{
if (start <= 1)
return 9;
if ((start % 8) == 1)
return start;
return get_next_ts(++start);
}
Haroon
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