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#!/bin/sh
#
# Interface to a glimpse search of the man pages.
# Michael Hamilton <michael@actrix.gen.nz>
# Small changes - aeb, 980109
#
# Do we need lynxcgi URLs? For the moment our criterion is
# 1) HTTP_USER_AGENT=Lynx* and 2) HTTP_HOST is unset.
AGENT="${HTTP_USER_AGENT-unknown}"
case "$AGENT" in
Lynx*|lynx*)
HH="${HTTP_HOST-nohh}"
SED="s/%lynx //"
;;
*)
HH=nolynx
SED="/%lynx/d"
;;
esac
SERVER="${SERVER_NAME-localhost}"
case "$HH" in
nohh)
CG="lynxcgi:/home/httpd/cgi-bin/man"
;;
*)
CG="http://$SERVER/cgi-bin/man"
;;
esac
QUOTE="'"
export CG QUOTE SED
exec awk '
function removeopts(string) {
gsub(/^[ \t]/, "", string); # Remove leading spaces
gsub(/[ \t]$/, "", string); # Remove trailing spaces
gsub(/[ \t\\];/, ";", string); # Remove spaces before ;
gsub(/[ \t];/, ",", string); # Remove spaces before ,
while (match(string, /^-[FLBwk1-8]/)) {
if (match(string, /^-[FL]( |.)[^ \t]+[ \t]+/)) { # Option with arg
options = options " " substr(string, RSTART, RLENGTH);
string = substr(string, RSTART + RLENGTH);
}
else if (match(string, /^-[Bwk1-8][ \t]+/)) { # Option without arg
options = options " " substr(string, RSTART, RLENGTH);
string = substr(string, RSTART + RLENGTH);
}
else if (match(string, /^-[^ \t]/)) { # Remove it
string = substr(string, RSTART + RLENGTH);
}
}
return string;
}
BEGIN {
searchdocument = "/home/httpd/cgi-aux/man/mansearch.aux";
quote = ENVIRON["QUOTE"];
cgipath = ENVIRON["CG"];
sedcmd = ENVIRON["SED"];
truncate_at = 11; # Single page display match limit.
glimpse_cmd = "glimpse -z -H /var/man2html -y -W -i "
for (i = 1; i < ARGC; i++) {
string = string " " ARGV[i];
}
# Have to be careful to single quote this
# string later.
gsub(/[^a-zA-Z0-9-_+ \t\/@%:;,$*|]/, " ", string);
string = removeopts(string);
gsub(/[^a-zA-Z0-9-_+ \t\/@%:,]/, " ", options);
if (!string) {
if (system("test -r " searchdocument ) != 0) {
print "Content-type: text/html\n\n";
print "<head>";
print "<title>mansearch - file not found</title>";
print "</head>\n<body>";
print "Sorry - cannot read " searchdocument ".";
print "</body>";
exit;
}
system("sed " quote "s#%cg#" cgipath "#g;" sedcmd quote " " searchdocument );
exit;
}
print "Content-type: text/html";
print "";
print "<HTML>";
print "<HEAD>";
print "<TITLE>Manual Pages - Search Results: " string "</TITLE>";
print "</HEAD>";
print "<BODY>";
print "<H1>Manual Pages - Search Results</H1>";
print "<H2>Target text: " options " " string "</H2>";
print "<A HREF=\"" cgipath "/mansearch\">";
print "Perform another search";
print "</A><BR>";
print "<A HREF=\"" cgipath "/man2html\">";
print "Return to Main Contents";
print "</A>";
print "<HR>";
print "<DL>";
# Unless you like being hacked, the single
# forward quotes are most important.
cmd = glimpse_cmd " " options " " quote string quote " 2>/dev/null" ;
while ((cmd | getline matchline) > 0) {
if (split(matchline, part, ": ") == 1) {
continue;
}
else {
fullname = part[1];
}
if (fullname == "glimpse") {
print "<DT><B>"fullname"</B>:";
}
else if (fullname != last_fullname) {
mcount++;
tcount = 0;
last_fullname = fullname ;
last_text = "";
if (match(fullname, ".*/")) {
dirname = substr(fullname, 1, RLENGTH);
filename = substr(fullname, RLENGTH + 1);
if (dirname != last_dirname) {
last_dirname = dirname;
print "</DL>";
print "<H3>Location: " dirname "</H3>";
print "<DL>";
}
}
else {
filename = fullname;
}
if (match(filename, /\.[^.]+$/)) {
ref = substr(filename, 1, RSTART - 1) "+" substr(filename, RSTART + 1);
}
else {
ref = filename;
}
print "<DT> <a href=\"" cgipath "/man2html?" fullname "\">";
textname = filename;
sub(/\.(gz)|Z|z$/, "", textname);
sub(/\./, "(", textname);
textname = textname ")";
print textname;
print "</A>";
}
text = substr(matchline, length(fullname) + 2);
tcount++;
if (tcount < truncate_at) {
sub(/^ *.[^ ]+ /, "", text);
sub(/ +$/, "", text);
gsub(/\\f./, "", text);
gsub(/\\&/, "", text);
gsub(/\\/, "", text);
print "<DD>" text;
}
else if (tcount == truncate_at) {
print "<DD> <I>...additional matches not shown.</I>";
}
}
print "</DL>";
if (mcount == 0) {
print "No matches found.";
}
else if (mcount == 1) {
print "<HR>\n<P>1 match found."
}
else {
print "<HR>\n<P>" mcount " matches found."
}
print "</BODY>";
print "</HTML>";
exit;
}' "$@"
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