Commit | Line | Data |
---|---|---|
42d6e430 BJ |
1 | # include "e.h" |
2 | #include "e.def" | |
3 | ||
4 | bshiftb(p1, dir, p2) int p1, dir, p2; { | |
5 | int shval, diffps, effps, effps2, d1, h1, b1, h2, b2; | |
6 | char *sh1, *sh2; | |
7 | ||
8 | yyval = p1; | |
9 | h1 = eht[p1]; | |
10 | b1 = ebase[p1]; | |
11 | h2 = eht[p2]; | |
12 | b2 = ebase[p2]; | |
13 | effps = EFFPS(ps); | |
14 | effps2 = EFFPS(ps+deltaps); | |
15 | diffps = deltaps; | |
16 | sh1 = sh2 = ""; | |
17 | if( dir == SUB ) { | |
18 | /* top 1/2m above bottom of main box */ | |
19 | d1 = VERT( (effps2*6)/2 ); | |
20 | shval = - d1 + h2 - b2; | |
21 | if( d1+b1 > h2 ) /* move little sub down */ | |
22 | shval = b1-b2; | |
23 | ebase[yyval] = b1 + max(0, h2-b1-d1); | |
24 | eht[yyval] = h1 + max(0, h2-b1-d1); | |
25 | if (rfont[p1] == ITAL && lfont[p2] == ROM) | |
26 | sh1 = "\\|"; | |
27 | if (rfont[p2] == ITAL) | |
28 | sh2 = "\\|"; | |
29 | } else { /* superscript */ | |
30 | /* 4/10 up main box */ | |
31 | d1 = VERT( (effps*6*2)/10 ); | |
32 | ebase[yyval] = b1; | |
33 | shval = -VERT( (4 * (h1-b1)) / 10 ) - b2; | |
34 | if( VERT(4*(h1-b1)/10) + h2 < h1-b1 ) /* raise little super */ | |
35 | shval = -(h1-b1) + h2-b2 - d1; | |
36 | eht[yyval] = h1 + max(0, h2-VERT((6*(h1-b1))/10)); | |
37 | if (rfont[p1] == ITAL) | |
38 | sh1 = "\\|"; | |
39 | if (rfont[p2] == ITAL) | |
40 | sh2 = "\\|"; | |
41 | } | |
42 | if(dbg)printf(".\tb:b shift b: S%d <- S%d vert %d S%d vert %d; b=%d, h=%d\n", | |
43 | yyval, p1, shval, p2, -shval, ebase[yyval], eht[yyval]); | |
44 | printf(".as %d \\v'%du'\\s-%d%s\\*(%d\\s+%d%s\\v'%du'\n", | |
45 | yyval, shval, diffps, sh1, p2, diffps, sh2, -shval); | |
46 | ps += deltaps; | |
47 | if (rfont[p2] == ITAL) | |
48 | rfont[p1] = 0; | |
49 | else | |
50 | rfont[p1] = rfont[p2]; | |
51 | ofree(p2); | |
52 | } | |
53 | ||
54 | shift(p1) int p1; { | |
55 | ps -= deltaps; | |
56 | yyval = p1; | |
57 | if(dbg)printf(".\tshift: %d;ps=%d\n", yyval, ps); | |
58 | } | |
59 | ||
60 | shift2(p1, p2, p3) int p1, p2, p3; { | |
61 | int effps, effps2, h1, h2, h3, b1, b2, b3, subsh, d1, d2, supsh; | |
62 | int treg; | |
63 | treg = oalloc(); | |
64 | yyval = p1; | |
65 | if(dbg)printf(".\tshift2 s%d <- %d %d %d\n", yyval, p1, p2, p3); | |
66 | effps = EFFPS(ps+deltaps); | |
67 | eht[p3] = h3 = VERT( (eht[p3] * effps) / EFFPS(ps) ); | |
68 | ps += deltaps; | |
69 | effps2 = EFFPS(ps+deltaps); | |
70 | h1 = eht[p1]; b1 = ebase[p1]; | |
71 | h2 = eht[p2]; b2 = ebase[p2]; | |
72 | b3 = ebase[p3]; | |
73 | d1 = VERT( (effps2*6)/2 ); | |
74 | subsh = -d1+h2-b2; | |
75 | if( d1+b1 > h2 ) /* move little sub down */ | |
76 | subsh = b1-b2; | |
77 | supsh = -VERT( (4*(h1-b1))/10 ) - b3; | |
78 | d2 = VERT( (effps*6*2)/10 ); | |
79 | if( VERT(4*(h1-b1)/10)+h3 < h1-b1 ) | |
80 | supsh = -(h1-b1) + (h3-b3) - d2; | |
81 | eht[yyval] = h1 + max(0, h3-VERT( (6*(h1-b1))/10 )) + max(0, h2-b1-d1); | |
82 | ebase[yyval] = b1+max(0, h2-b1-d1); | |
83 | if (rfont[p1] == ITAL && lfont[p2] == ROM) | |
84 | printf(".ds %d \\|\\*(%d\n", p2, p2); | |
85 | if (rfont[p2] == ITAL) | |
86 | printf(".as %d \\|\n", p2); | |
87 | nrwid(p2, effps, p2); | |
88 | if (rfont[p1] == ITAL && lfont[p3] == ROM) | |
89 | printf(".ds %d \\|\\|\\*(%d\n", p3, p3); | |
90 | else | |
91 | printf(".ds %d \\|\\*(%d\n", p3, p3); | |
92 | nrwid(p3, effps, p3); | |
93 | printf(".nr %d \\n(%d\n", treg, p3); | |
94 | printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n", p2, treg, treg, p2); | |
95 | printf(".as %d \\v'%du'\\s%d\\*(%d\\h'-\\n(%du'\\v'%du'\\\n", | |
96 | p1, subsh, effps, p2, p2, -subsh+supsh); | |
97 | printf("\\s%d\\*(%d\\h'-\\n(%du+\\n(%du'\\s%d\\v'%du'\n", | |
98 | effps, p3, p3, treg, effps2, -supsh); | |
99 | ps += deltaps; | |
100 | if (rfont[p2] == ITAL) | |
101 | rfont[yyval] = 0; /* lie */ | |
102 | ofree(p2); ofree(p3); ofree(treg); | |
103 | } |