BSD 3 development

[unix-history] / usr / src / cmd / eqn / diacrit.c

# include "e.h"
# include "e.def"

diacrit(p1, type) int p1, type; {
       int c, t, effps;

       c = oalloc();
       t = oalloc();
       effps = EFFPS(ps);
       nrwid(p1, effps, p1);
       printf(".nr 10 %du\n", VERT(max(eht[p1]-ebase[p1]-6*ps,0)));    /* vertical shift if high */
       printf(".if \\n(ct>1 .nr 10 \\n(10+\\s%d.25m\\s0\n", effps);
       printf(".nr %d \\s%d.1m\\s0\n", t, effps);      /* horiz shift if high */
       printf(".if \\n(ct>1 .nr %d \\s%d.15m\\s0\n", t, effps);
       switch(type) {
               case VEC:
                       printf(".ds %d \\v'-.4m'\\s%d\\(->\\s0\\v'.4m'\n", c, max(effps-3, 6));
                       break;
               case DYAD:
                       printf(".ds %d \\v'-.4m'\\s%d\\z\\(<-\\(->\\s0\\v'.4m'\n", c, max(effps-3, 6));
                       break;
               case HAT:
                       printf(".ds %d ^\n", c);
                       break;
               case TILDE:
                       printf(".ds %d ~\n", c);
                       break;
               case DOT:
                       printf(".ds %d \\s%d\\v'-.67m'.\\v'.67m'\\s0\n", c, effps);
                       break;
               case DOTDOT:
                       printf(".ds %d \\s%d\\v'-.67m'..\\v'.67m\\s0'\n", c, effps);
                       break;
               case BAR:
                       printf(".ds %d \\s%d\\v'.18m'\\h'.05m'\\l'\\n(%du-.1m\\(rn'\\h'.05m'\\v'-.18m'\\s0\n",
                               c, effps, p1);
                       break;
               case UNDER:
                       printf(".ds %d \\l'\\n(%du\\(ul'\n", c, p1);
                       printf(".nr %d 0\n", t);
                       printf(".nr 10 0-%d\n", ebase[p1]);
                       break;
               }
       nrwid(c, ps, c);
       if (lfont[p1] != ITAL)
               printf(".nr %d 0\n", t);
       printf(".as %d \\h'-\\n(%du-\\n(%du/2u+\\n(%du'\\v'0-\\n(10u'\\*(%d", 
               p1, p1, c, t, c);
       printf("\\v'\\n(10u'\\h'-\\n(%du+\\n(%du/2u-\\n(%du'\n", c, p1, t);
       /* BUG - should go to right end of widest */
       if (type != UNDER)
               eht[p1] += VERT( (6*ps*15) / 100);      /* 0.15m */
       if(dbg)printf(".\tdiacrit: %c over S%d, lf=%c, rf=%c, h=%d,b=%d\n",
               type, p1, lfont[p1], rfont[p1], eht[p1], ebase[p1]);
       ofree(c); ofree(t);
}