7 |
# maximum entries |
# maximum entries |
8 |
my $max = 0; |
my $max = 0; |
9 |
# minimum letters to search by |
# minimum letters to search by |
10 |
my $min_len = 2; |
my $min_len = shift @ARGV || 3; |
11 |
# if more than x elements, warn to increase min_len |
# if more than x elements, warn to increase min_len |
12 |
my $increase_at = 500; |
my $increase_at = 500; |
13 |
|
|
14 |
|
# name of generated index |
15 |
|
my $headlines = 'headlines'; |
16 |
|
|
17 |
my $debug = 1; |
my $debug = 1; |
18 |
|
|
19 |
sub print_file { |
sub print_file { |
26 |
} |
} |
27 |
|
|
28 |
print qq{ |
print qq{ |
29 |
var headlines = Array(); |
var $headlines = new Object(); |
30 |
}; |
}; |
31 |
|
|
32 |
my @part_arr; |
my @part_arr; |
35 |
|
|
36 |
my $max_elements = 0; |
my $max_elements = 0; |
37 |
|
|
38 |
|
sub escape_js { |
39 |
|
my $t = shift || return 'undef'; |
40 |
|
# escape single quote and backspace |
41 |
|
$t =~ s/(['\\])/\\$1/g && print STDERR "ESCAPED '$t'\n"; |
42 |
|
# quote string if not number |
43 |
|
$t = "'$t'" unless ($t =~ m/^\d+$/); |
44 |
|
return $t; |
45 |
|
} |
46 |
|
|
47 |
while(<STDIN>) { |
while(<STDIN>) { |
48 |
chomp; |
chomp; |
49 |
|
|
50 |
# escape single quote |
if (!m/\t/ || m/\t$/) { |
51 |
s/'/\\'/g; |
print STDERR "SKIP '$_': no tab\n"; |
52 |
|
next; |
53 |
|
} |
54 |
|
|
55 |
|
my @data = split(/\t+/,$_); |
56 |
|
|
57 |
|
my $headline = shift @data || die "need at least headline!"; |
58 |
|
|
59 |
|
if (length($headline) < $min_len) { |
60 |
|
print STDERR "SKIP '$_': too short\n"; |
61 |
|
next; |
62 |
|
} |
63 |
|
|
64 |
|
|
65 |
# split into min_len part and rest |
# split into min_len part and rest |
66 |
my ($part,$rest) = ( substr($_,0,$min_len), substr($_,$min_len) ); |
my ($part,$rest) = ( substr($headline,0,$min_len), substr($headline,$min_len) ); |
67 |
|
|
68 |
# make part lowercase |
# make part lowercase |
69 |
$part = lc($part); |
$part = lc($part); |
72 |
|
|
73 |
# new part? |
# new part? |
74 |
if ($part ne $last_part) { |
if ($part ne $last_part) { |
75 |
print STDERR $last_part,"\t",$#part_arr+1,"\n" if ($debug); |
print STDERR $last_part,"\t",$#part_arr+1,"\n" if ($debug && $#part_arr > $increase_at); |
76 |
$max_elements = $#part_arr if ($#part_arr > $max_elements); |
$max_elements = $#part_arr if ($#part_arr > $max_elements); |
77 |
print "headlines['$last_part'] = Array(\n ",join(",\n ",@part_arr),");\n" if (@part_arr); |
print "${headlines}[",escape_js($last_part),"] = [\n ",join(",\n ",@part_arr),"];\n" if (@part_arr); |
78 |
$total += $#part_arr; |
$total += $#part_arr; |
79 |
@part_arr = (); |
@part_arr = (); |
80 |
$last_part = $part; |
$last_part = $part; |
81 |
} |
} |
82 |
push @part_arr, "'$_'"; |
push @part_arr, "[".escape_js($headline).",".join(",",map { escape_js($_) } @data)."]"; |
83 |
|
|
84 |
# break out? |
# break out? |
85 |
last if ($max && $total > $max); |
last if ($max && $total > $max); |
86 |
} |
} |
87 |
|
|
88 |
print "headlines['$last_part'] = Array(\n ",join(",\n ",@part_arr),");\n" if (@part_arr); |
print "${headlines}[",escape_js($last_part)."] = [\n ",join(",\n ",@part_arr),"];\n" if (@part_arr); |
89 |
print "var min_len = $min_len;\n"; |
print qq{ |
90 |
print "// index elements: $total\n"; |
|
91 |
|
${headlines}.min_len = $min_len; |
92 |
|
${headlines}.length = $total; |
93 |
|
|
94 |
|
}; |
95 |
|
|
96 |
print STDERR "You have more than $increase_at elements in one array,\nyou whould probably increase min_len to ",$min_len+1," or higher.\n" if ($max_elements > $increase_at); |
print STDERR "You have more than $increase_at elements, so you should\nincrease min_len to ",$min_len+1," or higher for performance benefit.\n" if ($max_elements > $increase_at); |