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* Rudimentary implementation of the roff(7) .char (output glyphIngo Schwarze2018-08-251-2/+2
| | | | | | | | | definition) request, used for example by groff_hdtbl(7). This simplistic implementation may interact incorrectly with the .tr (input character translation) request. But come on, you are not only using .char *and* .tr, but you do so with respect to the same character in the same manual page?
* Rudimentary implementation of the roff(7) .while request.Ingo Schwarze2018-08-241-2/+3
| | | | | | | | | | | Needed for example by groff_hdtbl(7). There are two limitations: It does not support nested .while requests yet, and each .while loop must start and end in the same scope. The roff_parseln() return codes are now more flexible and allow OR'ing options.
* Implement the roff(7) .shift and .return requests,Ingo Schwarze2018-08-231-2/+2
| | | | | | | | | | | | | | for example used by groff_hdtbl(7) and groff_mom(7). Also correctly interpolate arguments during nested macro execution even after .shift and .return, implemented using a stack of argument arrays. Note that only read.c, but not roff.c can detect the end of a macro execution, and the existence of .shift implies that arguments cannot be interpolated up front, so unfortunately, this includes a partial revert of roff.c rev. 1.337, moving argument interpolation back into the function roff_res().
* Implement appending to standard man(7) and mdoc(7) macros with .am.Ingo Schwarze2017-06-181-1/+1
| | | | | | | | | | | | | | | | | | With roff_getstrn(), provide finer control which definitions can be used for what: * All definitions can be used for .if d tests and .am appending. * User-defined for \* expansion, .dei expansion, and macro calling. * Predefined for \* expansion. * Standard macros, original or renamed, for macro calling. Several related improvements while here: * Do not return string table entries that have explicitly been removed. * Do not create a rentab entry when trying to rename a non-existent macro. * Clear an existing rentab entry when the external interface roff_setstr() is called with its name. * Avoid trailing blanks in macro lines generated from renamed and from aliased macros. * Delete the duplicate __m*_reserved[] tables, just use roff_name[].
* Naive implementation of the roff(7) .po (page offset) request.Ingo Schwarze2017-06-141-1/+1
| | | | | | This clearly works when .po is called on the top level, but might not be sophisticated enough if people call .po inside indentation-changing contexts, but i haven't seen that in manual pages (yet :).
* Basic implementation of the roff(7) .ti (temporary indent) request.Ingo Schwarze2017-05-081-1/+1
| | | | Needed by about four dozen ports (thanks to naddy@ for the research).
* Basic implementation of the roff(7) .ta (define tab stops) request.Ingo Schwarze2017-05-071-1/+1
| | | | | | This is the first feature made possible by the parser reorganization. Improves the formatting of the SYNOPSIS in many Xenocara GL manuals. Also important for ports, as reported by many, including naddy@.
* Finally port the OpenBSD regression suite.Ingo Schwarze2017-02-081-0/+7
Both kristaps@ and wiz@ repeated asked for this, literally for years.