CVS log for mandoc/regress/mdoc/Bd/blank.out_markdown

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Default branch: MAIN
Current tag: HEAD

Revision 1.3 / (download) - annotate - [select for diffs], Mon Aug 15 18:12:31 2022 UTC (21 months, 2 weeks ago) by schwarze
Branch: MAIN
CVS Tags: HEAD
Changes since 1.2: +9 -1 lines
Diff to previous 1.2 (unified) 

Distinguish between escape sequences that produce no output
whatsoever (for example \fR) and escape sequences that produce
invisible zero-width output (for example \&).  No, i'm not joking,
groff does make that distinction, and it has consequences in some
situations, for example for vertical spacing in no-fill mode.
Heirloom and Plan 9 behaviour is subtly different, but in case of
doubt, we want to follow groff.

While this fixes the behaviour for the majority of escape sequences,
in particular for those most likely to occur in practice, it is not
perfect yet because some of the more exotic ESCAPE_IGNORE sequences
are actually of the "no output whatsoever" type but treated
as "invisible zero-width" for now.  With the new ASCII_NBRZW mechanism
in place, switching them over one by one when the need arises will
no longer be very difficult.

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