gecko-dev/webtools/lxr/search

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Исходник Обычный вид История

#!/usr/bonsaitools/bin/perl
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# $Id: search,v 1.4 1998/06/12 21:58:38 jwz Exp $
# search -- Freetext search
#
# Arne Georg Gleditsch <argggh@ifi.uio.no>
# Per Kristian Gjermshus <pergj@ifi.uio.no>
#
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
######################################################################
use lib 'lib/';
use LXR::Common;
use LXR::Config;
$maxhits = 1000;
sub search {
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print("<P ALIGN=CENTER>\n",
"Free-text search through the source code, including comments.\n",
"<BR>(Need some <A HREF=\"search-help.html\">Hints</A> ",
"on performing searches?)\n");
print("<form method=get action=\"search\">\n");
foreach ($Conf->allvariables) {
if ($Conf->variable($_) ne $Conf->vardefault($_)) {
print("<input type=hidden name=\"",$_, "\" ",
"value=\"", $Conf->variable($_), "\">\n");
}
}
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print("<B>Search for: </B><input type=text name=\"string\" ",
"value=\"",$searchtext,"\" size=50>\n",
"<input type=submit value=\"search\">\n",
# $Query->checkbox("case",0,0,"Case sensitive search"),
# $Query->checkbox("regexp",1,0,"Regular expression search"),
# $Query->popup_menu("fuzz",[0,1,2,3,4,5,6,7],0),
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"</form>\n");
$| = 1; print('');
if ($searchtext ne "") {
print("<hr>\n");
unless (open(GLIMPSE, "-|")) {
open(STDERR, ">&STDOUT");
$!='';
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exec($Conf->glimpsebin,"-i","-H".$Conf->dbdir,'-y','-n',$searchtext);
print("Glimpse subprocess died unexpextedly: $!\n");
exit;
}
$numlines = 0;
while (<GLIMPSE>) {
$numlines++;
push(@glimpselines,$_);
if ($numlines > $maxhits) {
last;
}
}
close(GLIMPSE);
$retval = $? >> 8;
# The manpage for glimpse says that it returns 2 on syntax errors or
# inaccessible files. It seems this is not the case.
# We will have to work around it for the time being.
if ($retval == 0) {
if (@glimpselines == 0) {
print("No matching files<br>\n");
} else {
if ($numlines > $maxhits) {
print("<b> Too many hits, displaying first $maxhits</b><br>\n");
}
print("<h1>$searchtext</h1>\n");
$sourceroot = $Conf->sourceroot;
foreach $glimpseline (@glimpselines) {
$glimpseline =~ s/$sourceroot//;
($file, $line, $text) =
$glimpseline =~ /(.*?):\s*(\d+)\s*:(.*)/;
$text =~ s/&/&amp;/g;
$text =~ s/</&lt;/g;
$text =~ s/>/&gt;/g;
print(&fileref("$file, line $line", "$file", $line),
" -- $text<br>\n");
}
}
} elsif ($retval == 1) {
$glimpsebin = $Conf->glimpsebin;
$glimpseresponse = join("<br>",@glimpselines);
$glimpseresponse =~ s/$glimpsebin/Reason/;
$glimpseresponse =~ s/glimpse: error in searching index//;
print("<b>Search failed</b><br>\n$glimpseresponse");
} else {
print("Unexpected returnvalue $retval from Glimpse\n");
}
}
}
($Conf, $HTTP, $Path) = &init;
$searchtext = $HTTP->{'param'}->{'string'};
&makeheader('search');
&search;
&makefooter('search');