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.ig
sboxes.tmac
Copyright (C) 2021 Free Software Foundation, Inc.
Written by Deri James (deri@chuzzlewit.myzen.co.uk)
This file is part of groff.
groff is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your
option) any later version.
groff is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
..
.if !\n(.g \{\
. tm sboxes.tmac: macros require groff extensions; not loading
. nx
.\}
.
.if \n(.C \{\
. tm sboxes.tmac: macros do not work in compatibility mode; not loading
. nx
.\}
.
.\" Define a string for use in diagnostic messages.
.ds bx*name sboxes.tmac\"
.
.if !r GS \
. ab \*[bx*name]: ms macros must be loaded first; aborting
.
.if (\n[.x]\n[.y] < 123) \{\
. ds bx*msg \*[bx*name]: groff 1.23 or later is required,\"
. as bx*msg " but found groff \n[.x].\n[.y]; not loading\"
. tm \*[bx*msg]
. nx
.\}
.
.\" See if already loaded.
.if r GSBOX .nx
.
.\" GSBOX is defined if the package is loaded, and true if it will work.
.nr GSBOX 0
.if '\*[.T]'pdf' \
. nr GSBOX 1
.
.nr bx*stack 0
.
.de bx*error
. tm \*[bx*name]:\\n[.F]:\\n[.c]: error: \\$*
..
.
.\" Define dummy macro if we're not formatting for the pdf device.
.if !\n[GSBOX] \{\
. de pdfbackground
. .
.\}
.
.\" Link into ms macros to trap footnote growth
.am fn@print-sep
. nr bx*pb \\n[nl]u-2p
. nop \!x X pdf: background footnote \\n[bx*pb]z
. rr bx*pb
..
.\" Has PD been actioned?
.am par*start
. nr bx*PD \\n[PD]
..
.
.de BOXSTART
. fl
. nr bx*stack \\n[bx*stack]+1u
. nr bx*shad 0
. nr bx*outl 0
. nr bx*ind 1P
. ds bx*wt 0
. ds bx*type "\"
. while \\n[.$] \{\
. ie 'SHADED'\\$1' \{\
. nop \\M[\\$2]\c
. nr bx*shad 1
. as bx*type "fill\"
. shift 2
. \}
. el \{\
. ie 'OUTLINED'\\$1' \{\
. nop \\m[\\$2]\c
. nr bx*outl 1
. as bx*type "box\"
. shift 2
. \}
. el \{\
. ie 'WEIGHT'\\$1' \{\
. ds bx*wt \\$2
. shift 2
. \}
. el \{\
. ie 'INDENT'\\$1' \{\
. nr bx*ind \\$2
. shift 2
. \}
. el \{\
. bx*error ignoring unrecognized BOXSTART parameter '\\$1'
. shift
. \}
. \}
. \}
. \}
. \}
.
. if '\\*[bx*type]'' .ds bx*type "fill"
. nr bx*l \\n[\\n[.ev]:li]s+\\n[.o]s-\\n[bx*ind]u
. nr bx*r \\n[bx*l]u+\\n[.l]-\\n[\\n[.ev]:li]+(\\n[bx*ind]u*2u)
. nr bx*gap \\n[.v]-\\n[.ps]+\\*[bx*wt]
. nr bx*bot \\n[.p]u-\\n[FM]u+\\n[bx*ind]u+\\n[.ps]u
. nr bx*top \\n[HM]-\\n[bx*ind]u+\\n[bx*gap]u
. ne \\n[bx*ind]u+2v+\\*[bx*wt]
. sp -(2v-(\\n[bx*PD]u*2u))u
. pdfbackground \\*[bx*type] \\n[bx*l]z \\n[bx*top]z \
\\n[bx*r]z \\n[bx*bot]z \
\\*[bx*wt]
. sp (\\n[bx*ind]u-1v)u
. if (\\n[bx*shad]=1) .nop \\M[]\c
. if (\\n[bx*outl]=1) .nop \\m[]\c
. ds bx*ind\\n[bx*stack] \\n[bx*ind]
. rr bx*shad bx*outl bx*ind bx*bot bx*top bx*l bx*r
. rm wt type
. sp -(\\n[bx*gap]u)
. nr bx*PD 0
..
.de BOXSTOP
. sp \\*[bx*ind\\n[bx*stack]]u-\\n[.psr]u
. pdfbackground off
. nr bx*stack \\n[bx*stack]-1u
..
.\" Local Variables:
.\" mode: nroff
.\" fill-column: 72
.\" End:
.\" vim: set expandtab filetype=groff textwidth=72:
|
