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- .\" Implementation of the ATK PB and PE macros for use with groff and grops.
- .\" Load this after tmac.atk.
- .nr zT 0
- .if '\*(.T'ps' .nr zT 1
- .nr psatk-unit 1p
- .de psatk-defs
- ps: mdef 5
- /PB {
- /saved save def
- currentpoint translate
- \n[psatk-unit] u -\n[psatk-unit] u scale
- userdict begin
- /showpage {} def
- } bind def
- /PE {
- end
- saved restore
- } bind def
- /troffadjust {
- pop 0
- } bind def
- ..
- .de PB
- .ne \\$1p
- .nr zT \\n(zT>0
- \\*[PB\\n(zT]\\
- ..
- .de PE
- \\*[PE\\n(zT]\\
- ..
- .ds PB0
- .\" The last line before the "'PE" is "\}" rather than ".\}". This
- .\" would cause a spurious space to be introduced before any picture
- .\" that was the first thing on a line. So we have to catch that and
- .\" remove it.
- .de PB1
- .ev psatk
- .fi
- .di psatk-mac
- \!ps: exec PB
- ..
- .de PE0
- \v'-.75m'\
- \D'l \\$1p 0'\D'l 0 \\$2p'\D'l -\\$1p 0'\D'l 0 -\\$2p'\
- \h'\\$1p'\v'.75m'\x'\\$2p-1m>?0'\c
- ..
- .ds psatk-init \Y[psatk-defs]
- .de PE1
- \!PE
- .di
- .di null
- .br
- .di
- .rm null
- .ev
- \v'-.75m'\
- \\*[psatk-init]\Y[psatk-mac]\
- \h'\\$1p'\v'.75m'\x'\\$2p-1m>?0'\c
- .rm psatk-mac
- .if \\n(.P .ds psatk-init
- ..
-