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#include "a.h"
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/*
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 * 14. Three-part titles.
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 */
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void
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r_lt(int argc, Rune **argv)
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{
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	Rune *p;
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	if(argc < 2)
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		nr(L(".lt"), evalscale(L("6.5i"), 'm'));
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	else{
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		if(argc > 2)
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			warn("too many arguments for .lt");
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		p = argv[1];
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		if(p[0] == '-')
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			nr(L(".lt"), getnr(L(".lt"))-evalscale(p+1, 'm'));
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		else if(p[0] == '+')
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			nr(L(".lt"), getnr(L(".lt"))+evalscale(p+1, 'm'));
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		else
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			nr(L(".lt"), evalscale(p, 'm'));
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	}
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}
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void
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t14init(void)
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{
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	addreq(L("tl"), r_warn, -1);
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	addreq(L("pc"), r_nop, -1);	/* page number char */
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	addreq(L("lt"), r_lt, -1);
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}
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