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Diffstat (limited to 'eqn/eqnbox.c')
| -rw-r--r-- | eqn/eqnbox.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/eqn/eqnbox.c b/eqn/eqnbox.c new file mode 100644 index 0000000000000..c51f0a4b95dc3 --- /dev/null +++ b/eqn/eqnbox.c @@ -0,0 +1,68 @@ +/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ +/* All Rights Reserved */ + + +/* + * Copyright (c) 1980 Regents of the University of California. + * All rights reserved. The Berkeley software License Agreement + * specifies the terms and conditions for redistribution. + */ + +/* + * Copyright (c) 1983, 1984 1985, 1986, 1987, 1988, Sun Microsystems, Inc. + * All Rights Reserved. + */ + +/* from OpenSolaris "eqnbox.c 1.3 05/06/02 SMI" SVr4.0 1.1 */ + +/* + * Portions Copyright (c) 2005 Gunnar Ritter, Freiburg i. Br., Germany + * + * Sccsid @(#)eqnbox.c 1.7 (gritter) 1/13/08 + */ + +/* + * Changes Copyright (c) 2014 Carsten Kunze (carsten.kunze at arcor.de) + */ + +# include "e.h" +#include "y.tab.h" + +extern YYSTYPE yyval; + +void +eqnbox(int p1, int p2, int lu) { +#ifndef NEQN + float b, h; +#else /* NEQN */ + int b, h; +#endif /* NEQN */ + char *sh; + + yyval.token = p1; + b = max(ebase[p1], ebase[p2]); + eht[yyval.token] = h = b + max(eht[p1]-ebase[p1], + eht[p2]-ebase[p2]); + ebase[yyval.token] = b; +#ifndef NEQN + if(dbg)printf(".\te:eb: S%d <- S%d S%d; b=%g, h=%g\n", + yyval.token, p1, p2, b, h); +#else /* NEQN */ + if(dbg)printf(".\te:eb: S%d <- S%d S%d; b=%d, h=%d\n", + yyval.token, p1, p2, b, h); +#endif /* NEQN */ + if (ital(rfont[p1]) && rom(lfont[p2])) { + if (op(lfont[p2])) + sh = "\\|"; + else + sh = "\\^"; + } else + sh = ""; + if (lu) { + printf(".nr %d \\w'\\s%s\\*(%d%s'\n", p1, tsize(ps), p1, sh); + printf(".ds %d \\h'|\\n(97u-\\n(%du'\\*(%d\n", p1, p1, p1); + } + printf(".as %d \"%s\\*(%d\n", yyval.token, sh, p2); + rfont[p1] = rfont[p2]; + ofree(p2); +} |