root/usr/src/cmd/eqn/font.c
/*
 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      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.
 */

#include "e.h"

void
setfont(char ch1)
{
        /* use number '1', '2', '3' for roman, italic, bold */
        yyval = ft;
        if (ch1 == 'r' || ch1 == 'R')
                ft = ROM;
        else if (ch1 == 'i' || ch1 == 'I')
                ft = ITAL;
        else if (ch1 == 'b' || ch1 == 'B')
                ft = BLD;
        else
                ft = ch1;
        printf(".ft %c\n", ft);
#ifndef NEQN
        if (dbg) printf(".\tsetfont %c %c\n", ch1, ft);
#else   /* NEQN */
        if (dbg) printf(".\tsetfont %c\n", ft);
#endif  /* NEQN */
}

void
font(int p1, int p2)
{
                /* old font in p1, new in ft */
        yyval = p2;
        lfont[yyval] = rfont[yyval] = ft == ITAL ? ITAL : ROM;
        if (dbg)
                printf(".\tb:fb: S%d <- \\f%c S%d \\f%c b=%d,h=%d,lf=%c,"
                    "rf=%c\n", yyval, ft, p2, p1, ebase[yyval], eht[yyval],
                    lfont[yyval], rfont[yyval]);
        printf(".ds %d \\f%c\\*(%d\\f%c\n", yyval, ft, p2, p1);
        ft = p1;
        printf(".ft %c\n", ft);
}

void
fatbox(int p)
{
        yyval = p;
        nrwid(p, ps, p);
        printf(".ds %d \\*(%d\\h'-\\n(%du+0.05m'\\*(%d\n", p, p, p, p);
        if (dbg) printf(".\tfat %d, sh=0.05m\n", p);
}

void
globfont(void)
{
        char temp[20];

        (void) getstr(temp, 20);
        yyval = eqnreg = 0;
        gfont = temp[0];
        switch (gfont) {
        case 'r': case 'R':
                gfont = '1';
                break;
        case 'i': case 'I':
                gfont = '2';
                break;
        case 'b': case 'B':
                gfont = '3';
                break;
        }
        printf(".ft %c\n", gfont);
        ft = gfont;
}