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* Style message about legacy man(7) date format in mdoc(7) documentsIngo Schwarze2017-06-113-0/+3
| | | | | and operating system dependent messages about missing or unexpected Mdocdate; inspired by mdoclint(1).
* Parser reorg:Ingo Schwarze2017-05-042-4/+4
| | | | | Generate the first node on the roff level: .br Fix some column numbers in diagnostic messages while here.
* prevent infinite recursion while expanding the argumentsIngo Schwarze2017-03-083-1/+8
| | | | of a user-defined macro; issue found by tb@ with afl(1)
* If a user-defined macro is aborted because it exceeds the stackIngo Schwarze2017-03-074-2/+31
| | | | | | | | | | | | | | | | | | | limit, usually due to infinite recursion, discard whatever remains in all those open stack levels. Otherwise, insane constructions like the following could generate macros of enormous size, causing mandoc(1) to die from memory exhaustion: .de m \" original macro definition .m \" recursion to blow up the stack .de m \" definition to be run during the call of .m marked (*) very long plain text (some kilobytes) .m \" expand the above a thousand times while unwinding the stack .. \" end of the original definition .m \" (*) recursively generate a ridiculously large macro .. \" end of recursively generated definition .m \" execute the giant macro, exhausting memory Very creative abuse found by tb@ with afl(1).
* Many people have been complaining for a long time that ``...'' looksIngo Schwarze2017-02-171-1/+1
| | | | | | | | | | | ugly in -Tascii output. For that reason, bentley@ submitted patches to render "..." instead to groff in November 2014 (yes, more than two years ago). Carsten Kunze yesterday merged them for the upcoming groff-1.22.4 release. Yay! Consequently, do the same in mandoc: Render \(Lq and \(Rq (which are used for .Do, .Dq, .Lb, and .St) as '"' in -Tascii output. All other output modes including -Tutf8 remain unchanged.
* Finally port the OpenBSD regression suite.Ingo Schwarze2017-02-0819-0/+349
Both kristaps@ and wiz@ repeated asked for this, literally for years.