1 5cedca1b 2004-05-15 devnull #include "e.h"
3 5cedca1b 2004-05-15 devnull #define abs(x) ((x) > 0 ? (x) : (-(x)))
5 5cedca1b 2004-05-15 devnull extern void brack(int, char *, char *, char *);
7 5cedca1b 2004-05-15 devnull void paren(int leftc, int p1, int rightc)
9 5cedca1b 2004-05-15 devnull int n, m, j;
10 5cedca1b 2004-05-15 devnull double h1, b1;
11 5cedca1b 2004-05-15 devnull double v, bv; /* v = shift of inside, bv = shift of brackets */
12 5cedca1b 2004-05-15 devnull extern double Parenbase, Parenshift, Parenheight;
14 5cedca1b 2004-05-15 devnull bv = ttype == DEVPOST ? Parenshift : 0; /* move brackets down this much */
15 5cedca1b 2004-05-15 devnull h1 = eht[p1];
16 5cedca1b 2004-05-15 devnull b1 = ebase[p1];
17 5cedca1b 2004-05-15 devnull yyval = p1;
18 5cedca1b 2004-05-15 devnull lfont[yyval] = rfont[yyval] = 0;
19 5cedca1b 2004-05-15 devnull n = REL(h1,ps) + 0.99; /* ceiling */
20 5cedca1b 2004-05-15 devnull if (n < 2)
22 5cedca1b 2004-05-15 devnull m = n - 2;
23 5cedca1b 2004-05-15 devnull if (leftc == '{' || rightc == '}') {
24 5cedca1b 2004-05-15 devnull n = n%2 ? n : ++n;
25 5cedca1b 2004-05-15 devnull if (n < 3)
29 5cedca1b 2004-05-15 devnull eht[yyval] = EM((double) n + Parenheight, ps);
30 5cedca1b 2004-05-15 devnull ebase[yyval] = eht[yyval]/2 - EM(Parenbase, ps);
32 5cedca1b 2004-05-15 devnull /* try to cope with things that are badly centered */
33 5cedca1b 2004-05-15 devnull /* (top heavy or bottom heavy) */
34 5cedca1b 2004-05-15 devnull if (abs(h1/2 - b1) >= EM(0.5, ps))
35 5cedca1b 2004-05-15 devnull v = REL(-ebase[yyval] + (eht[yyval]-h1)/2 + b1, ps);
37 5cedca1b 2004-05-15 devnull v = 0; /* don't shift it at all */
39 5cedca1b 2004-05-15 devnull printf(".ds %d \\^", yyval); /* was \| */
41 5cedca1b 2004-05-15 devnull printf("\\v'%gm'", bv);
42 5cedca1b 2004-05-15 devnull switch (leftc) {
43 5cedca1b 2004-05-15 devnull case 'n': /* nothing */
44 5cedca1b 2004-05-15 devnull case '\0':
46 5cedca1b 2004-05-15 devnull case 'f': /* floor */
47 5cedca1b 2004-05-15 devnull if (n <= 1)
48 5cedca1b 2004-05-15 devnull printf("\\(lf");
50 5cedca1b 2004-05-15 devnull brack(m, "\\(bv", "\\(bv", "\\(lf");
52 5cedca1b 2004-05-15 devnull case 'c': /* ceiling */
53 5cedca1b 2004-05-15 devnull if (n <= 1)
54 5cedca1b 2004-05-15 devnull printf("\\(lc");
56 5cedca1b 2004-05-15 devnull brack(m, "\\(lc", "\\(bv", "\\(bv");
58 5cedca1b 2004-05-15 devnull case '{':
59 5cedca1b 2004-05-15 devnull printf("\\b'\\(lt");
60 5cedca1b 2004-05-15 devnull for(j = 0; j < m; j += 2) printf("\\(bv");
61 5cedca1b 2004-05-15 devnull printf("\\(lk");
62 5cedca1b 2004-05-15 devnull for(j = 0; j < m; j += 2) printf("\\(bv");
63 5cedca1b 2004-05-15 devnull printf("\\(lb'");
65 5cedca1b 2004-05-15 devnull case '(':
66 5cedca1b 2004-05-15 devnull brack(m, "\\(lt", "\\(bv", "\\(lb");
68 5cedca1b 2004-05-15 devnull case '[':
69 5cedca1b 2004-05-15 devnull brack(m, "\\(lc", "\\(bv", "\\(lf");
71 5cedca1b 2004-05-15 devnull case '|':
72 5cedca1b 2004-05-15 devnull brack(m, "|", "|", "|");
75 5cedca1b 2004-05-15 devnull brack(m, (char *) &leftc, (char *) &leftc, (char *) &leftc);
79 5cedca1b 2004-05-15 devnull printf("\\v'%gm'", -bv);
81 5cedca1b 2004-05-15 devnull printf("\\v'%gm'\\*(%d\\v'%gm'", -v, p1, v);
83 5cedca1b 2004-05-15 devnull printf("\\*(%d", p1);
84 5cedca1b 2004-05-15 devnull if (rightc) {
86 5cedca1b 2004-05-15 devnull printf("\\v'%gm'", bv);
87 5cedca1b 2004-05-15 devnull switch (rightc) {
88 5cedca1b 2004-05-15 devnull case 'f': /* floor */
89 5cedca1b 2004-05-15 devnull if (n <= 1)
90 5cedca1b 2004-05-15 devnull printf("\\(rf");
92 5cedca1b 2004-05-15 devnull brack(m, "\\(bv", "\\(bv", "\\(rf");
94 5cedca1b 2004-05-15 devnull case 'c': /* ceiling */
95 5cedca1b 2004-05-15 devnull if (n <= 1)
96 5cedca1b 2004-05-15 devnull printf("\\(rc");
98 5cedca1b 2004-05-15 devnull brack(m, "\\(rc", "\\(bv", "\\(bv");
100 5cedca1b 2004-05-15 devnull case '}':
101 5cedca1b 2004-05-15 devnull printf("\\b'\\(rt");
102 5cedca1b 2004-05-15 devnull for(j = 0; j < m; j += 2) printf("\\(bv");
103 5cedca1b 2004-05-15 devnull printf("\\(rk");
104 5cedca1b 2004-05-15 devnull for(j = 0; j < m; j += 2) printf("\\(bv");
105 5cedca1b 2004-05-15 devnull printf("\\(rb'");
107 5cedca1b 2004-05-15 devnull case ']':
108 5cedca1b 2004-05-15 devnull brack(m, "\\(rc", "\\(bv", "\\(rf");
110 5cedca1b 2004-05-15 devnull case ')':
111 5cedca1b 2004-05-15 devnull brack(m, "\\(rt", "\\(bv", "\\(rb");
113 5cedca1b 2004-05-15 devnull case '|':
114 5cedca1b 2004-05-15 devnull brack(m, "|", "|", "|");
116 5cedca1b 2004-05-15 devnull default:
117 5cedca1b 2004-05-15 devnull brack(m, (char *) &rightc, (char *) &rightc, (char *) &rightc);
121 5cedca1b 2004-05-15 devnull printf("\\v'%gm'", -bv);
123 5cedca1b 2004-05-15 devnull printf("\n");
124 5cedca1b 2004-05-15 devnull dprintf(".\tcurly: h=%g b=%g n=%d v=%g l=%c, r=%c\n",
125 5cedca1b 2004-05-15 devnull eht[yyval], ebase[yyval], n, v, leftc, rightc);
128 5cedca1b 2004-05-15 devnull void brack(int m, char *t, char *c, char *b)
131 5cedca1b 2004-05-15 devnull printf("\\b'%s", t);
132 5cedca1b 2004-05-15 devnull for( j=0; j < m; j++)
133 5cedca1b 2004-05-15 devnull printf("%s", c);
134 5cedca1b 2004-05-15 devnull printf("%s'", b);