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1.1 root 1: /* tu.c: draws horizontal lines */
2: # include "t..c"
3: makeline(i,c,lintype)
4: {
5: int cr, type, shortl;
6: type = thish(i,c);
7: if (type==0) return;
8: cr=c;
9: shortl = (table[i][c].col[0]=='\\');
10: if (c>0 && !shortl && thish(i,c-1) == type)return;
11: if (shortl==0)
12: for(cr=c; cr < ncol && (ctype(i,cr)=='s'||type==thish(i,cr)); cr++);
13: else
14: for(cr=c+1; cr<ncol && ctype(i,cr)=='s'; cr++);
15: drawline(i, c, cr-1, lintype, 0, shortl);
16: }
17: fullwide(i, lintype)
18: {
19: int cr, cl;
20: if (!pr1403)
21: fprintf(tabout, ".nr %d \\n(.v\n.vs \\n(.vu-\\n(.sp\n", SVS);
22: cr= 0;
23: while (cr<ncol)
24: {
25: cl=cr;
26: while (i>0 && vspand(prev(i),cl,1))
27: cl++;
28: for(cr=cl; cr<ncol; cr++)
29: if (i>0 && vspand(prev(i),cr,1))
30: break;
31: if (cl<ncol)
32: drawline(i,cl,(cr<ncol?cr-1:cr),lintype,1,0);
33: }
34: fprintf(tabout, "\n");
35: if (!pr1403)
36: fprintf(tabout, ".vs \\n(%du\n", SVS);
37: }
38:
39: drawline(i, cl, cr, lintype, noheight, shortl)
40: {
41: char *exhr, *exhl;
42: int lcount, ln, linpos, oldpos, nodata, lnch;
43: lcount=0;
44: exhr=exhl= "";
45: switch(lintype)
46: {
47: case '-': lcount=1;break;
48: case '=': lcount = pr1403? 1 : 2; break;
49: case SHORTLINE: lcount=1; break;
50: }
51: if (lcount<=0) return;
52: nodata = cr-cl>=ncol || noheight || allh(i);
53: if (!nodata)
54: fprintf(tabout, "\\v'-.5m'");
55: for(ln=oldpos=0; ln<lcount; ln++)
56: {
57: linpos = 2*ln - lcount +1;
58: if (linpos != oldpos)
59: fprintf(tabout, "\\v'%dp'", linpos-oldpos);
60: oldpos=linpos;
61: if (shortl==0)
62: {
63: tohcol(cl);
64: if (lcount>1)
65: {
66: switch(interv(i,cl))
67: {
68: case TOP: exhl = ln==0 ? "1p" : "-1p"; break;
69: case BOT: exhl = ln==1 ? "1p" : "-1p"; break;
70: case THRU: exhl = "1p"; break;
71: }
72: if (exhl[0])
73: fprintf(tabout, "\\h'%s'", exhl);
74: }
75: else if (lcount==1)
76: {
77: switch(interv(i,cl))
78: {
79: case TOP: case BOT: exhl = "-1p"; break;
80: case THRU: exhl = "1p"; break;
81: }
82: if (exhl[0])
83: fprintf(tabout, "\\h'%s'", exhl);
84: }
85: if (lcount>1)
86: {
87: switch(interv(i,cr+1))
88: {
89: case TOP: exhr = ln==0 ? "-1p" : "+1p"; break;
90: case BOT: exhr = ln==1 ? "-1p" : "+1p"; break;
91: case THRU: exhr = "-1p"; break;
92: }
93: }
94: else if (lcount==1)
95: {
96: switch(interv(i,cr+1))
97: {
98: case TOP: case BOT: exhr = "+1p"; break;
99: case THRU: exhr = "-1p"; break;
100: }
101: }
102: }
103: else
104: fprintf(tabout, "\\h'|\\n(%du'", cl+CLEFT);
105: fprintf(tabout, "\\s\\n(%d",LSIZE);
106: if (linsize)
107: fprintf(tabout, "\\v'-\\n(%dp/6u'", LSIZE);
108: if (shortl)
109: fprintf(tabout, "\\l'|\\n(%du'", cr+CRIGHT);
110: else
111: {
112: lnch = "\\(ul";
113: if (pr1403)
114: lnch = lintype==2 ? "=" : "\\(ru";
115: if (cr+1>=ncol)
116: fprintf(tabout, "\\l'|\\n(TWu%s%s'", exhr,lnch);
117: else
118: fprintf(tabout, "\\l'(|\\n(%du+|\\n(%du)/2u%s%s'", cr+CRIGHT,
119: cr+1+CLEFT, exhr, lnch);
120: }
121: if (linsize)
122: fprintf(tabout, "\\v'\\n(%dp/6u'", LSIZE);
123: fprintf(tabout, "\\s0");
124: }
125: if (oldpos!=0)
126: fprintf(tabout, "\\v'%dp'", -oldpos);
127: if (!nodata)
128: fprintf(tabout, "\\v'+.5m'");
129: }
130: getstop()
131: {
132: int i,c,k,junk, stopp;
133: stopp=1;
134: for(i=0; i<MAXLIN; i++)
135: linestop[i]=0;
136: for(i=0; i<nlin; i++)
137: for(c=0; c<ncol; c++)
138: {
139: k = left(i,c,&junk);
140: if (k>=0 && linestop[k]==0)
141: linestop[k]= ++stopp;
142: }
143: if (boxflg || allflg || dboxflg)
144: linestop[0]=1;
145: }
146: left(i,c, lwidp)
147: int *lwidp;
148: {
149: int kind, li, lj;
150: /* returns -1 if no line to left */
151: /* returns number of line where it starts */
152: /* stores into lwid the kind of line */
153: *lwidp=0;
154: kind = lefdata(i,c);
155: if (kind==0) return(-1);
156: if (i+1<nlin)
157: if (lefdata(next(i),c)== kind) return(-1);
158: while (i>=0 && lefdata(i,c)==kind)
159: i=prev(li=i);
160: if (prev(li)== -1) li=0;
161: *lwidp=kind;
162: for(lj= i+1; lj<li; lj++)
163: if (instead[lj] && strcmp(instead[lj], ".TH")==0)
164: return(li);
165: for(i= i+1; i<li; i++)
166: if (fullbot[i])
167: li=i;
168: return(li);
169: }
170: lefdata(i,c)
171: {
172: int ck;
173: if (i>=nlin) i=nlin-1;
174: if (ctype(i,c) == 's')
175: {
176: for(ck=c; ctype(i,ck)=='s'; ck--);
177: if (thish(i,ck)==0)
178: return(0);
179: }
180: i =stynum[i];
181: i = lefline[i][c];
182: if (i>0) return(i);
183: if (dboxflg && c==0) return(2);
184: if (allflg)return(1);
185: if (boxflg && c==0) return(1);
186: return(0);
187: }
188: next(i)
189: {
190: while (i+1 <nlin)
191: {
192: i++;
193: if (!fullbot[i] && !instead[i]) break;
194: }
195: return(i);
196: }
197: prev(i)
198: {
199: while (--i >=0 && (fullbot[i] || instead[i]))
200: ;
201: return(i);
202: }
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