projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 42d6e430 BJ |
1 | # include "e.h" |
| 2 | ||
| 3 | paren(leftc, p1, rightc) int p1, leftc, rightc; { | |
| 4 | int n, m, h1, j, b1, v; | |
| 5 | h1 = eht[p1]; b1 = ebase[p1]; | |
| 6 | yyval = p1; | |
| 7 | n = max(b1+VERT(1), h1-b1-VERT(1)) / VERT(1); | |
| 8 | if( n<2 ) n = 1; | |
| 9 | m = n-2; | |
| 10 | if (leftc=='{' || rightc == '}') { | |
| 11 | n = n%2 ? n : ++n; | |
| 12 | if( n<3 ) n=3; | |
| 13 | m = n-3; | |
| 14 | } | |
| 15 | eht[yyval] = VERT(2 * n); | |
| 16 | ebase[yyval] = (n)/2 * VERT(2); | |
| 17 | if (n%2 == 0) | |
| 18 | ebase[yyval] -= VERT(1); | |
| 19 | v = b1 - h1/2 + VERT(1); | |
| 20 | printf(".ds %d \\|\\v'%du'", yyval, v); | |
| 21 | switch( leftc ) { | |
| 22 | case 'n': /* nothing */ | |
| 23 | case '\0': | |
| 24 | break; | |
| 25 | case 'f': /* floor */ | |
| 26 | if (n <= 1) | |
| 27 | printf("\\(lf"); | |
| 28 | else | |
| 29 | brack(m, "\\(bv", "\\(bv", "\\(lf"); | |
| 30 | break; | |
| 31 | case 'c': /* ceiling */ | |
| 32 | if (n <= 1) | |
| 33 | printf("\\(lc"); | |
| 34 | else | |
| 35 | brack(m, "\\(lc", "\\(bv", "\\(bv"); | |
| 36 | break; | |
| 37 | case '{': | |
| 38 | printf("\\b'\\(lt"); | |
| 39 | for(j = 0; j < m; j += 2) printf("\\(bv"); | |
| 40 | printf("\\(lk"); | |
| 41 | for(j = 0; j < m; j += 2) printf("\\(bv"); | |
| 42 | printf("\\(lb'"); | |
| 43 | break; | |
| 44 | case '(': | |
| 45 | brack(m, "\\(lt", "\\(bv", "\\(lb"); | |
| 46 | break; | |
| 47 | case '[': | |
| 48 | brack(m, "\\(lc", "\\(bv", "\\(lf"); | |
| 49 | break; | |
| 50 | case '|': | |
| 51 | brack(m, "|", "|", "|"); | |
| 52 | break; | |
| 53 | default: | |
| 54 | brack(m, (char *) &leftc, (char *) &leftc, (char *) &leftc); | |
| 55 | break; | |
| 56 | } | |
| 57 | printf("\\v'%du'\\*(%d", -v, p1); | |
| 58 | if( rightc ) { | |
| 59 | printf("\\|\\v'%du'", v); | |
| 60 | switch( rightc ) { | |
| 61 | case 'f': /* floor */ | |
| 62 | if (n <= 1) | |
| 63 | printf("\\(rf"); | |
| 64 | else | |
| 65 | brack(m, "\\(bv", "\\(bv", "\\(rf"); | |
| 66 | break; | |
| 67 | case 'c': /* ceiling */ | |
| 68 | if (n <= 1) | |
| 69 | printf("\\(rc"); | |
| 70 | else | |
| 71 | brack(m, "\\(rc", "\\(bv", "\\(bv"); | |
| 72 | break; | |
| 73 | case '}': | |
| 74 | printf("\\b'\\(rt"); | |
| 75 | for(j = 0; j< m; j += 2)printf("\\(bv"); | |
| 76 | printf("\\(rk"); | |
| 77 | for(j = 0; j< m; j += 2) printf("\\(bv"); | |
| 78 | printf("\\(rb'"); | |
| 79 | break; | |
| 80 | case ']': | |
| 81 | brack(m, "\\(rc", "\\(bv", "\\(rf"); | |
| 82 | break; | |
| 83 | case ')': | |
| 84 | brack(m, "\\(rt", "\\(bv", "\\(rb"); | |
| 85 | break; | |
| 86 | case '|': | |
| 87 | brack(m, "|", "|", "|"); | |
| 88 | break; | |
| 89 | default: | |
| 90 | brack(m, (char *) &rightc, (char *) &rightc, (char *) &rightc); | |
| 91 | break; | |
| 92 | } | |
| 93 | printf("\\v'%du'", -v); | |
| 94 | } | |
| 95 | printf("\n"); | |
| 96 | if(dbg)printf(".\tcurly: h=%d b=%d n=%d v=%d l=%c, r=%c\n", | |
| 97 | eht[yyval], ebase[yyval], n, v, leftc, rightc); | |
| 98 | } | |
| 99 | ||
| 100 | brack(m, t, c, b) int m; char *t, *c, *b; { | |
| 101 | int j; | |
| 102 | printf("\\b'%s", t); | |
| 103 | for( j=0; j<m; j++) | |
| 104 | printf("%s", c); | |
| 105 | printf("%s'", b); | |
| 106 | } |