Commit | Line | Data |
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476fcd16 SL |
1 | #ifndef lint |
2 | static char sccsid[] = "@(#)tv.c 4.3 %G%"; | |
3 | #endif | |
440a0b17 BS |
4 | |
5 | /* tv.c: draw vertical lines */ | |
6 | # include "t..c" | |
7 | drawvert(start,end, c, lwid) | |
8 | { | |
9 | char *exb=0, *ext=0; | |
10 | int tp=0, sl, ln, pos, epb, ept, vm; | |
11 | end++; | |
12 | vm='v'; | |
13 | /* note: nr 35 has value of 1m outside of linesize */ | |
14 | while (instead[end]) end++; | |
15 | for(ln=0; ln<lwid; ln++) | |
16 | { | |
17 | epb=ept=0; | |
18 | pos = 2*ln-lwid+1; | |
19 | if (pos!=tp) fprintf(tabout, "\\h'%dp'", pos-tp); | |
20 | tp = pos; | |
21 | if (end<nlin) | |
22 | { | |
23 | if (fullbot[end]|| (!instead[end] && allh(end))) | |
24 | epb=2; | |
25 | else | |
26 | switch (midbar(end,c)) | |
27 | { | |
28 | case '-': | |
29 | exb = "1v-.5m"; break; | |
30 | case '=': | |
31 | exb = "1v-.5m"; | |
32 | epb = 1; break; | |
33 | } | |
34 | } | |
35 | if (lwid>1) | |
36 | switch(interh(end, c)) | |
37 | { | |
38 | case THRU: epb -= 1; break; | |
39 | case RIGHT: epb += (ln==0 ? 1 : -1); break; | |
40 | case LEFT: epb += (ln==1 ? 1 : -1); break; | |
41 | } | |
42 | if (lwid==1) | |
43 | switch(interh(end,c)) | |
44 | { | |
45 | case THRU: epb -= 1; break; | |
46 | case RIGHT: case LEFT: epb += 1; break; | |
47 | } | |
48 | if (start>0) | |
49 | { | |
50 | sl = start-1; | |
51 | while (sl>=0 && instead[sl]) sl--; | |
52 | if (sl>=0 && (fullbot[sl] || allh(sl))) | |
53 | ept=0; | |
54 | else | |
55 | if (sl>=0) | |
56 | switch(midbar(sl,c)) | |
57 | { | |
58 | case '-': | |
59 | ext = ".5m"; break; | |
60 | case '=': | |
61 | ext= ".5m"; ept = -1; break; | |
62 | default: | |
63 | vm = 'm'; break; | |
64 | } | |
65 | else | |
66 | ept = -4; | |
67 | } | |
68 | else if (start==0 && allh(0)) | |
69 | { | |
70 | ept=0; | |
71 | vm = 'm'; | |
72 | } | |
73 | if (lwid>1) | |
74 | switch(interh(start,c)) | |
75 | { | |
76 | case THRU: ept += 1; break; | |
77 | case LEFT: ept += (ln==0 ? 1 : -1); break; | |
78 | case RIGHT: ept += (ln==1 ? 1 : -1); break; | |
79 | } | |
80 | else if (lwid==1) | |
81 | switch(interh(start,c)) | |
82 | { | |
83 | case THRU: ept += 1; break; | |
84 | case LEFT: case RIGHT: ept -= 1; break; | |
85 | } | |
86 | if (exb) | |
87 | fprintf(tabout, "\\v'%s'", exb); | |
88 | if (epb) | |
89 | fprintf(tabout, "\\v'%dp'", epb); | |
90 | fprintf(tabout, "\\s\\n(%d",LSIZE); | |
91 | if (linsize) | |
92 | fprintf(tabout, "\\v'-\\n(%dp/6u'", LSIZE); | |
93 | fprintf(tabout, "\\h'-\\n(#~u'"); /* adjustment for T450 nroff boxes */ | |
94 | fprintf(tabout, "\\L'|\\n(#%cu-%s", linestop[start]+'a'-1, vm=='v'? "1v" : "\\n(35u"); | |
95 | if (ext) | |
96 | fprintf(tabout, "-(%s)",ext); | |
97 | if (exb) | |
98 | fprintf(tabout, "-(%s)", exb); | |
99 | pos = ept-epb; | |
100 | if (pos) | |
101 | fprintf(tabout, "%s%dp", pos>=0? "+" : "", pos); | |
102 | /* the string #d is either "nl" or ".d" depending | |
103 | on diversions; on GCOS not the same */ | |
104 | fprintf(tabout, "'\\s0\\v'\\n(\\*(#du-\\n(#%cu+%s", linestop[start]+'a'-1,vm=='v' ? "1v" : "\\n(35u"); | |
105 | if (ext) | |
106 | fprintf(tabout, "+%s",ext); | |
107 | if (ept) | |
108 | fprintf(tabout, "%s%dp", (-ept)>0 ? "+" : "", (-ept)); | |
109 | fprintf(tabout, "'"); | |
110 | if (linsize) | |
111 | fprintf(tabout, "\\v'\\n(%dp/6u'", LSIZE); | |
112 | } | |
113 | } | |
114 | ||
115 | ||
116 | midbar(i,c) | |
117 | { | |
118 | int k; | |
119 | k = midbcol(i,c); | |
120 | if (k==0 && c>0) | |
121 | k = midbcol(i, c-1); | |
122 | return(k); | |
123 | } | |
124 | midbcol(i,c) | |
125 | { | |
126 | int ct; | |
127 | while ( (ct=ctype(i,c)) == 's') | |
128 | c--; | |
129 | if (ct=='-' || ct == '=') | |
130 | return(ct); | |
131 | if (ct=barent(table[i][c].col)) | |
132 | return(ct); | |
133 | return(0); | |
134 | } | |
135 | ||
136 | barent(s) | |
137 | char *s; | |
138 | { | |
139 | if (s==0) return (1); | |
31dcd0af | 140 | if (!point(s)) return(1); |
440a0b17 BS |
141 | if (s[0]== '\\') s++; |
142 | if (s[1]!= 0) | |
143 | return(0); | |
144 | switch(s[0]) | |
145 | { | |
146 | case '_': | |
147 | return('-'); | |
148 | case '=': | |
149 | return('='); | |
150 | } | |
151 | return(0); | |
152 | } |