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1.1 root 1: #ifndef lint
2: static char sccsid[] = "@(#)t6.c 4.3 1/23/85";
3: #endif
4:
5: /* t6.c: compute tab stops */
6: # define tx(a) (a>0 && a<128)
7: # include "t..c"
8: maktab()
9: {
10: # define FN(i,c) font[stynum[i]][c]
11: # define SZ(i,c) csize[stynum[i]][c]
12: /* define the tab stops of the table */
13: int icol, ilin, tsep, k, ik, vforml, il, text;
14: int doubled[MAXCOL], acase[MAXCOL];
15: char *s;
16: for(icol=0; icol <ncol; icol++)
17: {
18: doubled[icol] = acase[icol] = 0;
19: fprintf(tabout, ".nr %d 0\n", icol+CRIGHT);
20: for(text=0; text<2; text++)
21: {
22: if (text)
23: fprintf(tabout, ".%02d\n.rm %02d\n", icol+80, icol+80);
24: for(ilin=0; ilin<nlin; ilin++)
25: {
26: if (instead[ilin]|| fullbot[ilin]) continue;
27: vforml=ilin;
28: for(il=prev(ilin); il>=0 && vspen(table[il][icol].col); il=prev(il))
29: vforml=il;
30: if (fspan(vforml,icol)) continue;
31: if (filler(table[ilin][icol].col)) continue;
32: switch(ctype(vforml,icol))
33: {
34: case 'a':
35: acase[icol]=1;
36: s = table[ilin][icol].col;
37: if (s>0 && s<128 && text)
38: {
39: if (doubled[icol]==0)
40: fprintf(tabout, ".nr %d 0\n.nr %d 0\n",S1,S2);
41: doubled[icol]=1;
42: fprintf(tabout, ".if \\n(%c->\\n(%d .nr %d \\n(%c-\n",s,S2,S2,s);
43: }
44: case 'n':
45: if (table[ilin][icol].rcol!=0)
46: {
47: if (doubled[icol]==0 && text==0)
48: fprintf(tabout, ".nr %d 0\n.nr %d 0\n", S1, S2);
49: doubled[icol]=1;
50: if (real(s=table[ilin][icol].col) && !vspen(s))
51: {
52: if (tx(s) != text) continue;
53: fprintf(tabout, ".nr %d ", TMP);
54: wide(s, FN(vforml,icol), SZ(vforml,icol)); fprintf(tabout, "\n");
55: fprintf(tabout, ".if \\n(%d<\\n(%d .nr %d \\n(%d\n", S1, TMP, S1, TMP);
56: }
57: if (text==0 && real(s=table[ilin][icol].rcol) && !vspen(s) && !barent(s))
58: {
59: fprintf(tabout, ".nr %d \\w%c%s%c\n",TMP, F1, s, F1);
60: fprintf(tabout, ".if \\n(%d<\\n(%d .nr %d \\n(%d\n",S2,TMP,S2,TMP);
61: }
62: continue;
63: }
64: case 'r':
65: case 'c':
66: case 'l':
67: if (real(s=table[ilin][icol].col) && !vspen(s))
68: {
69: if (tx(s) != text) continue;
70: fprintf(tabout, ".nr %d ", TMP);
71: wide(s, FN(vforml,icol), SZ(vforml,icol)); fprintf(tabout, "\n");
72: fprintf(tabout, ".if \\n(%d<\\n(%d .nr %d \\n(%d\n", icol+CRIGHT, TMP, icol+CRIGHT, TMP);
73: }
74: }
75: }
76: }
77: if (acase[icol])
78: {
79: fprintf(tabout, ".if \\n(%d>=\\n(%d .nr %d \\n(%du+2n\n",S2,icol+CRIGHT,icol+CRIGHT,S2);
80: }
81: if (doubled[icol])
82: {
83: fprintf(tabout, ".nr %d \\n(%d\n", icol+CMID, S1);
84: fprintf(tabout, ".nr %d \\n(%d+\\n(%d\n",TMP,icol+CMID,S2);
85: fprintf(tabout, ".if \\n(%d>\\n(%d .nr %d \\n(%d\n",TMP,icol+CRIGHT,icol+CRIGHT,TMP);
86: fprintf(tabout, ".if \\n(%d<\\n(%d .nr %d +(\\n(%d-\\n(%d)/2\n",TMP,icol+CRIGHT,icol+CMID,icol+CRIGHT,TMP);
87: }
88: if (cll[icol][0])
89: {
90: fprintf(tabout, ".nr %d %sn\n", TMP, cll[icol]);
91: fprintf(tabout, ".if \\n(%d<\\n(%d .nr %d \\n(%d\n",icol+CRIGHT, TMP, icol+CRIGHT, TMP);
92: }
93: for(ilin=0; ilin<nlin; ilin++)
94: if (k=lspan(ilin, icol))
95: {
96: s=table[ilin][icol-k].col;
97: if (!real(s) || barent(s) || vspen(s) ) continue;
98: fprintf(tabout, ".nr %d ", TMP);
99: wide(table[ilin][icol-k].col, FN(ilin,icol-k), SZ(ilin,icol-k));
100: for(ik=k; ik>=0; ik--)
101: {
102: fprintf(tabout, "-\\n(%d",CRIGHT+icol-ik);
103: if (!expflg && ik>0) fprintf(tabout, "-%dn", sep[icol-ik]);
104: }
105: fprintf(tabout, "\n");
106: fprintf(tabout, ".if \\n(%d>0 .nr %d \\n(%d/%d\n", TMP, TMP, TMP, k);
107: fprintf(tabout, ".if \\n(%d<0 .nr %d 0\n", TMP, TMP);
108: for(ik=1; ik<=k; ik++)
109: {
110: if (doubled[icol-k+ik])
111: fprintf(tabout, ".nr %d +\\n(%d/2\n", icol-k+ik+CMID, TMP);
112: fprintf(tabout, ".nr %d +\\n(%d\n", icol-k+ik+CRIGHT, TMP);
113: }
114: }
115: }
116: if (textflg) untext();
117: /* if even requested, make all columns widest width */
118: # define TMP1 S1
119: # define TMP2 S2
120: if (evenflg)
121: {
122: fprintf(tabout, ".nr %d 0\n", TMP);
123: for(icol=0; icol<ncol; icol++)
124: {
125: if (evenup[icol]==0) continue;
126: fprintf(tabout, ".if \\n(%d>\\n(%d .nr %d \\n(%d\n",
127: icol+CRIGHT, TMP, TMP, icol+CRIGHT);
128: }
129: for(icol=0; icol<ncol; icol++)
130: {
131: if (evenup[icol]==0)
132: /* if column not evened just retain old interval */
133: continue;
134: if (doubled[icol])
135: fprintf(tabout, ".nr %d (100*\\n(%d/\\n(%d)*\\n(%d/100\n",
136: icol+CMID, icol+CMID, icol+CRIGHT, TMP);
137: /* that nonsense with the 100's and parens tries
138: to avoid overflow while proportionally shifting
139: the middle of the number */
140: fprintf(tabout, ".nr %d \\n(%d\n", icol+CRIGHT, TMP);
141: }
142: }
143: /* now adjust for total table width */
144: for(tsep=icol=0; icol<ncol; icol++)
145: tsep+= sep[icol];
146: if (expflg)
147: {
148: fprintf(tabout, ".nr %d 0", TMP);
149: for(icol=0; icol<ncol; icol++)
150: fprintf(tabout, "+\\n(%d", icol+CRIGHT);
151: fprintf(tabout, "\n");
152: fprintf(tabout, ".nr %d \\n(.l-\\n(%d\n", TMP, TMP);
153: if (boxflg || dboxflg || allflg)
154: tsep += 1;
155: else
156: tsep -= sep[ncol-1];
157: fprintf(tabout, ".nr %d \\n(%d/%d\n", TMP, TMP, tsep);
158: fprintf(tabout, ".if \\n(%d<0 .nr %d 0\n", TMP, TMP);
159: }
160: else
161: fprintf(tabout, ".nr %d 1n\n", TMP);
162: fprintf(tabout, ".nr %d 0\n",CRIGHT-1);
163: tsep= (boxflg || allflg || dboxflg || left1flg) ? 1 : 0;
164: for(icol=0; icol<ncol; icol++)
165: {
166: fprintf(tabout, ".nr %d \\n(%d+(%d*\\n(%d)\n",icol+CLEFT, icol+CRIGHT-1, tsep, TMP);
167: fprintf(tabout, ".nr %d +\\n(%d\n",icol+CRIGHT, icol+CLEFT);
168: if (doubled[icol])
169: {
170: /* the next line is last-ditch effort to avoid zero field width */
171: /*fprintf(tabout, ".if \\n(%d=0 .nr %d 1\n",icol+CMID, icol+CMID);*/
172: fprintf(tabout, ".nr %d +\\n(%d\n", icol+CMID, icol+CLEFT);
173: /* fprintf(tabout, ".if n .if \\n(%d%%24>0 .nr %d +12u\n",icol+CMID, icol+CMID); */
174: }
175: tsep=sep[icol];
176: }
177: if (rightl)
178: fprintf(tabout, ".nr %d (\\n(%d+\\n(%d)/2\n",ncol+CRIGHT-1, ncol+CLEFT-1, ncol+CRIGHT-2);
179: fprintf(tabout, ".nr TW \\n(%d\n", ncol+CRIGHT-1);
180: if (boxflg || allflg || dboxflg)
181: fprintf(tabout, ".nr TW +%d*\\n(%d\n", sep[ncol-1], TMP);
182: fprintf(tabout,
183: ".if t .if \\n(TW>\\n(.li .tm Table at line %d file %s is too wide - \\n(TW units\n", iline-1, ifile);
184: return;
185: }
186: wide(s, fn, size)
187: char *s, *size, *fn;
188: {
189: if (point(s))
190: {
191: fprintf(tabout, "\\w%c", F1);
192: if (*fn>0) putfont(fn);
193: if (*size) putsize(size);
194: fprintf(tabout, "%s", s);
195: if (*fn>0) putfont("P");
196: if (*size) putsize("0");
197: fprintf(tabout, "%c",F1);
198: }
199: else
200: fprintf(tabout, "\\n(%c-", s);
201: }
202: filler(s)
203: char *s;
204: {
205: return (point(s) && s[0]=='\\' && s[1] == 'R');
206: }
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