1 |
dpavlin |
10 |
package WebPAC::Normalize; |
2 |
dpavlin |
536 |
use Exporter 'import'; |
3 |
|
|
@EXPORT = qw/ |
4 |
|
|
set_rec set_lookup |
5 |
|
|
get_ds clean_ds |
6 |
|
|
tag search display |
7 |
|
|
rec1 rec2 rec |
8 |
|
|
regex prefix suffix surround |
9 |
|
|
first lookup join_with |
10 |
|
|
/; |
11 |
dpavlin |
10 |
|
12 |
|
|
use warnings; |
13 |
|
|
use strict; |
14 |
dpavlin |
536 |
|
15 |
|
|
#use base qw/WebPAC::Common/; |
16 |
dpavlin |
13 |
use Data::Dumper; |
17 |
dpavlin |
10 |
|
18 |
|
|
=head1 NAME |
19 |
|
|
|
20 |
dpavlin |
536 |
WebPAC::Normalize - describe normalisaton rules using sets |
21 |
dpavlin |
10 |
|
22 |
|
|
=head1 VERSION |
23 |
|
|
|
24 |
dpavlin |
536 |
Version 0.04 |
25 |
dpavlin |
10 |
|
26 |
|
|
=cut |
27 |
|
|
|
28 |
dpavlin |
536 |
our $VERSION = '0.04'; |
29 |
dpavlin |
10 |
|
30 |
|
|
=head1 SYNOPSIS |
31 |
|
|
|
32 |
dpavlin |
536 |
This module uses C<conf/normalize/*.pl> files to perform normalisation |
33 |
|
|
from input records using perl functions which are specialized for set |
34 |
|
|
processing. |
35 |
dpavlin |
10 |
|
36 |
dpavlin |
536 |
Sets are implemented as arrays, and normalisation file is valid perl, which |
37 |
|
|
means that you check it's validity before running WebPAC using |
38 |
|
|
C<perl -c normalize.pl>. |
39 |
dpavlin |
15 |
|
40 |
dpavlin |
536 |
Normalisation can generate multiple output normalized data. For now, supported output |
41 |
|
|
types (on the left side of definition) are: C<tag>, C<display> and C<search>. |
42 |
dpavlin |
15 |
|
43 |
dpavlin |
10 |
=head1 FUNCTIONS |
44 |
|
|
|
45 |
dpavlin |
536 |
=head2 data_structure |
46 |
dpavlin |
10 |
|
47 |
dpavlin |
536 |
Return data structure |
48 |
dpavlin |
13 |
|
49 |
dpavlin |
536 |
my $ds = WebPAC::Normalize( |
50 |
|
|
lookup => $lookup->lookup_hash, |
51 |
|
|
row => $row, |
52 |
|
|
rules => $normalize_pl_config, |
53 |
dpavlin |
13 |
); |
54 |
|
|
|
55 |
dpavlin |
536 |
This function will B<die> if normalizastion can't be evaled. |
56 |
dpavlin |
15 |
|
57 |
dpavlin |
10 |
=cut |
58 |
|
|
|
59 |
dpavlin |
536 |
sub data_structure { |
60 |
|
|
my $arg = {@_}; |
61 |
dpavlin |
13 |
|
62 |
dpavlin |
536 |
die "need row argument" unless ($arg->{row}); |
63 |
|
|
die "need normalisation argument" unless ($arg->{rules}); |
64 |
dpavlin |
31 |
|
65 |
dpavlin |
536 |
no strict 'subs'; |
66 |
|
|
set_lookup( $arg->{lookup} ); |
67 |
|
|
set_rec( $arg->{row} ); |
68 |
|
|
clean_ds(); |
69 |
|
|
eval "$arg->{rules}"; |
70 |
|
|
die "error evaling $arg->{rules}: $@\n" if ($@); |
71 |
|
|
return get_ds(); |
72 |
dpavlin |
10 |
} |
73 |
|
|
|
74 |
dpavlin |
536 |
=head2 set_rec |
75 |
dpavlin |
13 |
|
76 |
dpavlin |
536 |
Set current record hash |
77 |
dpavlin |
433 |
|
78 |
dpavlin |
536 |
set_rec( $rec ); |
79 |
dpavlin |
433 |
|
80 |
|
|
=cut |
81 |
|
|
|
82 |
dpavlin |
536 |
my $rec; |
83 |
dpavlin |
433 |
|
84 |
dpavlin |
536 |
sub set_rec { |
85 |
|
|
$rec = shift or die "no record hash"; |
86 |
dpavlin |
433 |
} |
87 |
|
|
|
88 |
dpavlin |
536 |
=head2 tag |
89 |
dpavlin |
433 |
|
90 |
dpavlin |
536 |
Define new tag for I<search> and I<display>. |
91 |
dpavlin |
433 |
|
92 |
dpavlin |
536 |
tag('Title', rec('200','a') ); |
93 |
dpavlin |
13 |
|
94 |
|
|
|
95 |
|
|
=cut |
96 |
|
|
|
97 |
dpavlin |
536 |
my $out; |
98 |
dpavlin |
13 |
|
99 |
dpavlin |
536 |
sub tag { |
100 |
|
|
my $name = shift or die "tag needs name as first argument"; |
101 |
|
|
my @o = grep { defined($_) && $_ ne '' } @_; |
102 |
|
|
return unless (@o); |
103 |
|
|
$out->{$name}->{tag} = $name; |
104 |
|
|
$out->{$name}->{search} = \@o; |
105 |
|
|
$out->{$name}->{display} = \@o; |
106 |
|
|
} |
107 |
dpavlin |
13 |
|
108 |
dpavlin |
536 |
=head2 display |
109 |
dpavlin |
13 |
|
110 |
dpavlin |
536 |
Define tag just for I<display> |
111 |
dpavlin |
125 |
|
112 |
dpavlin |
536 |
@v = display('Title', rec('200','a') ); |
113 |
dpavlin |
125 |
|
114 |
dpavlin |
536 |
=cut |
115 |
dpavlin |
125 |
|
116 |
dpavlin |
536 |
sub display { |
117 |
|
|
my $name = shift or die "display needs name as first argument"; |
118 |
|
|
my @o = grep { defined($_) && $_ ne '' } @_; |
119 |
|
|
return unless (@o); |
120 |
|
|
$out->{$name}->{tag} = $name; |
121 |
|
|
$out->{$name}->{display} = \@o; |
122 |
|
|
} |
123 |
dpavlin |
13 |
|
124 |
dpavlin |
536 |
=head2 search |
125 |
dpavlin |
13 |
|
126 |
dpavlin |
536 |
Prepare values just for I<search> |
127 |
dpavlin |
13 |
|
128 |
dpavlin |
536 |
@v = search('Title', rec('200','a') ); |
129 |
dpavlin |
433 |
|
130 |
dpavlin |
536 |
=cut |
131 |
dpavlin |
13 |
|
132 |
dpavlin |
536 |
sub search { |
133 |
|
|
my $name = shift or die "search needs name as first argument"; |
134 |
|
|
my @o = grep { defined($_) && $_ ne '' } @_; |
135 |
|
|
return unless (@o); |
136 |
|
|
$out->{$name}->{tag} = $name; |
137 |
|
|
$out->{$name}->{search} = \@o; |
138 |
dpavlin |
13 |
} |
139 |
|
|
|
140 |
dpavlin |
536 |
=head2 get_ds |
141 |
dpavlin |
13 |
|
142 |
dpavlin |
536 |
Return hash formatted as data structure |
143 |
dpavlin |
13 |
|
144 |
dpavlin |
536 |
my $ds = get_ds(); |
145 |
dpavlin |
13 |
|
146 |
|
|
=cut |
147 |
|
|
|
148 |
dpavlin |
536 |
sub get_ds { |
149 |
dpavlin |
13 |
return $out; |
150 |
|
|
} |
151 |
|
|
|
152 |
dpavlin |
536 |
=head2 clean_ds |
153 |
dpavlin |
15 |
|
154 |
dpavlin |
536 |
Clean data structure hash for next record |
155 |
dpavlin |
15 |
|
156 |
dpavlin |
536 |
clean_ds(); |
157 |
dpavlin |
15 |
|
158 |
dpavlin |
536 |
=cut |
159 |
dpavlin |
15 |
|
160 |
dpavlin |
536 |
sub clean_ds { |
161 |
|
|
$out = undef; |
162 |
|
|
} |
163 |
dpavlin |
15 |
|
164 |
dpavlin |
536 |
=head2 set_lookup |
165 |
dpavlin |
15 |
|
166 |
dpavlin |
536 |
Set current lookup hash |
167 |
dpavlin |
15 |
|
168 |
dpavlin |
536 |
set_lookup( $lookup ); |
169 |
dpavlin |
371 |
|
170 |
dpavlin |
15 |
=cut |
171 |
|
|
|
172 |
dpavlin |
536 |
my $lookup; |
173 |
dpavlin |
15 |
|
174 |
dpavlin |
536 |
sub set_lookup { |
175 |
|
|
$lookup = shift; |
176 |
|
|
} |
177 |
dpavlin |
15 |
|
178 |
dpavlin |
536 |
=head2 rec1 |
179 |
dpavlin |
371 |
|
180 |
dpavlin |
536 |
Return all values in some field |
181 |
dpavlin |
371 |
|
182 |
dpavlin |
536 |
@v = rec1('200') |
183 |
dpavlin |
15 |
|
184 |
dpavlin |
536 |
TODO: order of values is probably same as in source data, need to investigate that |
185 |
dpavlin |
15 |
|
186 |
dpavlin |
536 |
=cut |
187 |
dpavlin |
15 |
|
188 |
dpavlin |
536 |
sub rec1 { |
189 |
|
|
my $f = shift; |
190 |
|
|
return unless (defined($rec) && defined($rec->{$f})); |
191 |
|
|
if (ref($rec->{$f}) eq 'ARRAY') { |
192 |
|
|
return map { |
193 |
|
|
if (ref($_) eq 'HASH') { |
194 |
|
|
values %{$_}; |
195 |
dpavlin |
31 |
} else { |
196 |
dpavlin |
536 |
$_; |
197 |
dpavlin |
31 |
} |
198 |
dpavlin |
536 |
} @{ $rec->{$f} }; |
199 |
|
|
} elsif( defined($rec->{$f}) ) { |
200 |
|
|
return $rec->{$f}; |
201 |
dpavlin |
15 |
} |
202 |
|
|
} |
203 |
|
|
|
204 |
dpavlin |
536 |
=head2 rec2 |
205 |
dpavlin |
15 |
|
206 |
dpavlin |
536 |
Return all values in specific field and subfield |
207 |
dpavlin |
13 |
|
208 |
dpavlin |
536 |
@v = rec2('200','a') |
209 |
dpavlin |
13 |
|
210 |
|
|
=cut |
211 |
|
|
|
212 |
dpavlin |
536 |
sub rec2 { |
213 |
|
|
my $f = shift; |
214 |
|
|
return unless (defined($rec && $rec->{$f})); |
215 |
|
|
my $sf = shift; |
216 |
|
|
return map { $_->{$sf} } grep { ref($_) eq 'HASH' && $_->{$sf} } @{ $rec->{$f} }; |
217 |
|
|
} |
218 |
dpavlin |
13 |
|
219 |
dpavlin |
536 |
=head2 rec |
220 |
dpavlin |
13 |
|
221 |
dpavlin |
536 |
syntaxtic sugar for |
222 |
dpavlin |
13 |
|
223 |
dpavlin |
536 |
@v = rec('200') |
224 |
|
|
@v = rec('200','a') |
225 |
dpavlin |
13 |
|
226 |
dpavlin |
536 |
=cut |
227 |
dpavlin |
373 |
|
228 |
dpavlin |
536 |
sub rec { |
229 |
|
|
if ($#_ == 0) { |
230 |
|
|
return rec1(@_); |
231 |
|
|
} elsif ($#_ == 1) { |
232 |
|
|
return rec2(@_); |
233 |
dpavlin |
13 |
} |
234 |
|
|
} |
235 |
|
|
|
236 |
dpavlin |
536 |
=head2 regex |
237 |
dpavlin |
15 |
|
238 |
dpavlin |
536 |
Apply regex to some or all values |
239 |
dpavlin |
15 |
|
240 |
dpavlin |
536 |
@v = regex( 's/foo/bar/g', @v ); |
241 |
dpavlin |
15 |
|
242 |
|
|
=cut |
243 |
|
|
|
244 |
dpavlin |
536 |
sub regex { |
245 |
|
|
my $r = shift; |
246 |
|
|
my @out; |
247 |
|
|
#warn "r: $r\n",Dumper(\@_); |
248 |
|
|
foreach my $t (@_) { |
249 |
|
|
next unless ($t); |
250 |
|
|
eval "\$t =~ $r"; |
251 |
|
|
push @out, $t if ($t && $t ne ''); |
252 |
dpavlin |
368 |
} |
253 |
dpavlin |
536 |
return @out; |
254 |
dpavlin |
15 |
} |
255 |
|
|
|
256 |
dpavlin |
536 |
=head2 prefix |
257 |
dpavlin |
15 |
|
258 |
dpavlin |
536 |
Prefix all values with a string |
259 |
dpavlin |
15 |
|
260 |
dpavlin |
536 |
@v = prefix( 'my_', @v ); |
261 |
dpavlin |
15 |
|
262 |
|
|
=cut |
263 |
|
|
|
264 |
dpavlin |
536 |
sub prefix { |
265 |
|
|
my $p = shift or die "prefix needs string as first argument"; |
266 |
|
|
return map { $p . $_ } grep { defined($_) } @_; |
267 |
|
|
} |
268 |
dpavlin |
15 |
|
269 |
dpavlin |
536 |
=head2 suffix |
270 |
dpavlin |
15 |
|
271 |
dpavlin |
536 |
suffix all values with a string |
272 |
dpavlin |
15 |
|
273 |
dpavlin |
536 |
@v = suffix( '_my', @v ); |
274 |
dpavlin |
15 |
|
275 |
dpavlin |
536 |
=cut |
276 |
dpavlin |
15 |
|
277 |
dpavlin |
536 |
sub suffix { |
278 |
|
|
my $s = shift or die "suffix needs string as first argument"; |
279 |
|
|
return map { $_ . $s } grep { defined($_) } @_; |
280 |
dpavlin |
15 |
} |
281 |
|
|
|
282 |
dpavlin |
536 |
=head2 surround |
283 |
dpavlin |
13 |
|
284 |
dpavlin |
536 |
surround all values with a two strings |
285 |
dpavlin |
13 |
|
286 |
dpavlin |
536 |
@v = surround( 'prefix_', '_suffix', @v ); |
287 |
dpavlin |
13 |
|
288 |
|
|
=cut |
289 |
|
|
|
290 |
dpavlin |
536 |
sub surround { |
291 |
|
|
my $p = shift or die "surround need prefix as first argument"; |
292 |
|
|
my $s = shift or die "surround needs suffix as second argument"; |
293 |
|
|
return map { $p . $_ . $s } grep { defined($_) } @_; |
294 |
dpavlin |
13 |
} |
295 |
|
|
|
296 |
dpavlin |
536 |
=head2 first |
297 |
dpavlin |
13 |
|
298 |
dpavlin |
536 |
Return first element |
299 |
dpavlin |
15 |
|
300 |
dpavlin |
536 |
$v = first( @v ); |
301 |
dpavlin |
13 |
|
302 |
|
|
=cut |
303 |
|
|
|
304 |
dpavlin |
536 |
sub first { |
305 |
|
|
my $r = shift; |
306 |
|
|
return $r; |
307 |
dpavlin |
13 |
} |
308 |
|
|
|
309 |
dpavlin |
536 |
=head2 lookup |
310 |
dpavlin |
13 |
|
311 |
dpavlin |
536 |
Consult lookup hashes for some value |
312 |
dpavlin |
13 |
|
313 |
dpavlin |
536 |
@v = lookup( $v ); |
314 |
|
|
@v = lookup( @v ); |
315 |
dpavlin |
13 |
|
316 |
|
|
=cut |
317 |
|
|
|
318 |
dpavlin |
536 |
sub lookup { |
319 |
|
|
my $k = shift or return; |
320 |
|
|
return unless (defined($lookup->{$k})); |
321 |
|
|
if (ref($lookup->{$k}) eq 'ARRAY') { |
322 |
|
|
return @{ $lookup->{$k} }; |
323 |
|
|
} else { |
324 |
|
|
return $lookup->{$k}; |
325 |
|
|
} |
326 |
dpavlin |
13 |
} |
327 |
|
|
|
328 |
dpavlin |
536 |
=head2 join_with |
329 |
dpavlin |
13 |
|
330 |
dpavlin |
536 |
Joins walues with some delimiter |
331 |
dpavlin |
10 |
|
332 |
dpavlin |
536 |
$v = join_with(", ", @v); |
333 |
dpavlin |
10 |
|
334 |
dpavlin |
536 |
=cut |
335 |
dpavlin |
10 |
|
336 |
dpavlin |
536 |
sub join_with { |
337 |
|
|
my $d = shift; |
338 |
|
|
return join($d, grep { defined($_) && $_ ne '' } @_); |
339 |
|
|
} |
340 |
dpavlin |
10 |
|
341 |
dpavlin |
536 |
# END |
342 |
|
|
1; |