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Revision 1.1, Thu Aug 23 14:29:42 2018 UTC (5 years, 10 months ago) by schwarze
Branch: MAIN
CVS Tags: VERSION_1_14_5 

Implement the roff(7) .shift and .return requests,
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().

SHIFT_BAD(1)                General Commands Manual               SHIFT_BAD(1)



NNAAMMEE
       sshhiifftt--bbaadd - wrong usage of macro arguments

DDEESSCCRRIIPPTTIIOONN
       initial text

       argument used before call: ""

       in macro: "argument"

       invalid argument number 'x': ""

       argument used after call: ""

       after shift badarg: "arg2" after excessive shift: 0 ""

       final text



OpenBSD                         August 23, 2018                   SHIFT_BAD(1)