1 #!/usr/local/plan9/bin/rc
2 
3 . $PLAN9/man/fonts
4 
5 cmd=n
6 sec=()
7 S=$PLAN9/man
8 d=0
9 
10 fn roff {
11 	preproc=()
12 	x=`{doctype $2}
13 	if (~ $1 t) {
14 		if(~ $x *grap*)
15 			preproc=($preproc grap)
16 		if(~ $x *pic*)
17 			preproc=($preproc pic)
18 		Nflag=-Tutf
19 	}
20 	if not {
21 		Nflag=-N
22 	}
23 	if(~ $x *eqn*)
24 		preproc=($preproc eqn)
25 	if(~ $x *tbl*)
26 		preproc=($preproc tbl)
27 	switch($#preproc) {
28 		case 0
29 			{echo -n $FONTS; cat $2< /dev/null} | troff $Nflag -$MAN 
30 		case 1
31 			{echo -n $FONTS; cat $2< /dev/null} | $preproc | troff $Nflag -$MAN
32 		case 2
33 			{echo -n $FONTS; cat $2< /dev/null} | $preproc(1) | $preproc(2) | troff $Nflag -$MAN
34 		case 3
35 			{echo -n $FONTS; cat $2< /dev/null} | $preproc(1) | $preproc(2) | $preproc(3) | | troff $Nflag -$MAN
36 		case *
37 			{echo -n $FONTS; cat $2< /dev/null} | $preproc(1) | $preproc(2) | $preproc(3) | | $preproc(4) | troff $Nflag -$MAN
38 	}
39 }
40 
41 while(~ $d 0) {
42 	if(~ $#* 0) {
43 		echo 'Usage: man [-ntp] [-s sec] [0-9] [0-9] ... name1 name2 ...' >[1=2]
44 		exit
45 	}
46 	if(test -d $S/man$1){
47 		sec=($sec $1)
48 		shift
49 	}
50 	if not switch($1) {
51 		case -t ; cmd=t ; shift
52 		case -n ; cmd=n ; shift
53 		case -p ; cmd=p ; shift
54 		case -P ; cmd=P ; shift
55 		case * ; d=1
56 	}
57 }
58 if(~ $#sec 0) {
59 	sec=`{ls -pd $S/man[0-9]* | sed 's/man//'}
60 }
61 ix=$S/man$sec/INDEX
62 if(~ $#* 1) pat='^'^$1^' '
63 if not pat='^('^`{echo $* | 9 sed 's/ /|/g'}^') '
64 fils=()
65 for(i in $S/man$sec){
66 	if(test -f $i/INDEX){
67 		try=`{grep $pat $i/INDEX | 9 sed 's/^[^ ]* //'}
68 		if(! ~ $#try 0)
69 			fils=($fils $i/$try)
70 	}
71 }
72 # bug: should also do following loop if not all pages found
73 if(~ $#fils 0) {
74 	# nothing in INDEX. try for file of given name
75 	for(i) {
76 		for(n in $sec) {
77 			try=$S/man$n/$i.$n*
78 			if (test -f $try)
79 				fils=($fils $try)
80 		}
81 	}
82 	if(~ $#fils 0) {
83 		echo 'man: no manual page' >[1=2]
84 		exit 'no man'
85 	}
86 }
87 for(i in $fils) {
88 	if(! test -f $i)
89 		echo need $i >[1=2]
90 	if not {
91 		switch($cmd) {
92 		case t
93 			roff t $i
94 
95 		case p
96 			roff t $i | proof
97 
98 		case P
99 			roff t $i |tr2post |psfonts |page
100 
101 		case n
102 			roff n $i | 9 sed '
103 				${
104         			       /^$/p
105 				}
106 				//N
107 				/^\n$/D'
108 		}
109 	}
110 }