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1 | package Text::Tradition::Witness; |
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2 | |
3 | use vars qw( %tags ); |
4 | use JSON; |
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5 | use Moose; |
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6 | use Moose::Util::TypeConstraints; |
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7 | use Text::TEI::Markup qw( word_tag_wrap ); |
8 | use TryCatch; |
9 | use XML::Easy::Syntax qw( $xml10_name_rx ); |
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10 | |
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11 | =head1 NAME |
12 | |
13 | Text::Tradition::Witness - a manuscript witness to a text tradition |
14 | |
15 | =head1 SYNOPSIS |
16 | |
17 | use Text::Tradition::Witness; |
18 | my $w = Text::Tradition::Witness->new( |
19 | 'sigil' => 'A', |
20 | 'identifier' => 'Oxford MS Ex.1932', |
21 | ); |
22 | |
23 | =head1 DESCRIPTION |
24 | |
25 | Text::Tradition::Witness is an object representation of a manuscript |
26 | witness to a text tradition. A manuscript has a sigil (a short code that |
27 | represents it in the wider tradition), an identifier (e.g. the library ID), |
28 | and probably a text. |
29 | |
30 | =head1 METHODS |
31 | |
32 | =head2 new |
33 | |
34 | Create a new witness. Options include: |
35 | |
36 | =over |
37 | |
38 | =item * sigil - A short code to represent the manuscript. Required. |
39 | |
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40 | =item * sourcetype - What sort of witness data this is. Options are |
41 | 'xmldesc', 'plaintext', 'json', or 'collation' (the last should only be |
42 | used by Collation parsers.) |
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43 | |
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44 | =item * file |
45 | =item * string |
46 | =item * object |
47 | |
48 | The data source for the witness. Use the appropriate option. |
49 | |
50 | =item * use_text - An initialization option. If the witness is read from a |
51 | TEI document and more than one <text/> tag exists therein, the default |
52 | behavior is to use the first defined text. If this is not desired, |
53 | use_text should be set to an XPath expression that will select the correct |
54 | text. |
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55 | |
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56 | =item * language - The name of the applicable L<Text::Tradition::Lang> |
57 | module for language handling. Usually inherited from the language set in |
58 | the L<Text::Tradition> object, and defaults to Default. |
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59 | |
60 | =item * identifier - The recognized name of the manuscript, e.g. a library |
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61 | identifier. Taken from the msDesc element for a TEI file. |
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62 | |
63 | =item * other_info - A freeform string for any other description of the |
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64 | manuscript. |
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65 | |
66 | =back |
67 | |
68 | =head2 sigil |
69 | |
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70 | The sigil by which to identify this manuscript, which must conform to the |
71 | specification for XML attribute strings (broadly speaking, it must begin |
72 | with a letter and can have only a few sorts of punctuation characters in |
73 | it.) |
74 | |
75 | =head2 identifier |
76 | |
77 | A freeform name by which to identify the manuscript, which may be longer |
78 | than the sigil. Defaults to 'Unidentified ms', but will be taken from the |
79 | TEI msName attribute, or constructed from the settlement and idno if |
80 | supplied. |
81 | |
82 | =head2 settlement |
83 | |
84 | The city, town, etc. where the manuscript is held. Will be read from the |
85 | TEI msDesc element if supplied. |
86 | |
87 | =head2 repository |
88 | |
89 | The institution that holds the manuscript. Will be read from the TEI msDesc |
90 | element if supplied. |
91 | |
92 | =head2 idno |
93 | |
94 | The identification or call number of the manuscript. Will be read from the |
95 | TEI msDesc element if supplied. |
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96 | |
97 | =head2 text |
98 | |
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99 | An array of strings (words) that contains the text of the |
100 | manuscript. This should not change after the witness has been |
101 | instantiated, and the path through the collation should always match it. |
102 | |
103 | =head2 layertext |
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104 | |
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105 | An array of strings (words) that contains the layered |
106 | text, if any, of the manuscript. This should not change after the witness |
107 | has been instantiated, and the path through the collation should always |
108 | match it. |
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109 | |
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110 | =head2 language |
111 | |
112 | Accessor method to get the witness language. |
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113 | |
114 | =head2 identifier |
115 | |
116 | Accessor method for the witness identifier. |
117 | |
118 | =head2 other_info |
119 | |
120 | Accessor method for the general witness description. |
121 | |
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122 | =head2 is_layered |
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123 | |
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124 | Boolean method to note whether the witness has layers (e.g. pre-correction |
125 | readings) in the collation. |
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126 | |
127 | =begin testing |
128 | |
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129 | use Text::Tradition; |
130 | my $trad = Text::Tradition->new( 'name' => 'test tradition' ); |
131 | my $c = $trad->collation; |
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132 | |
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133 | # Test a plaintext witness via string |
134 | my $str = 'This is a line of text'; |
135 | my $ptwit = $trad->add_witness( |
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136 | 'sigil' => 'A', |
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137 | 'sourcetype' => 'plaintext', |
138 | 'string' => $str |
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139 | ); |
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140 | is( ref( $ptwit ), 'Text::Tradition::Witness', 'Created a witness' ); |
141 | if( $ptwit ) { |
142 | is( $ptwit->sigil, 'A', "Witness has correct sigil" ); |
143 | is( $c->path_text( $ptwit->sigil ), $str, "Witness has correct text" ); |
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144 | } |
145 | |
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146 | # Test some JSON witnesses via object |
147 | open( JSIN, 't/data/witnesses/testwit.json' ) or die "Could not open JSON test input"; |
148 | binmode( JSIN, ':encoding(UTF-8)' ); |
149 | my @lines = <JSIN>; |
150 | close JSIN; |
151 | $trad->add_json_witnesses( join( '', @lines ) ); |
152 | is( ref( $trad->witness( 'MsAJ' ) ), 'Text::Tradition::Witness', |
153 | "Found first JSON witness" ); |
154 | is( ref( $trad->witness( 'MsBJ' ) ), 'Text::Tradition::Witness', |
155 | "Found second JSON witness" ); |
156 | |
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157 | # # Test an XML witness via file |
158 | # my $xmlwit = $trad->add_witness( 'sourcetype' => 'xmldesc', |
159 | # 'file' => 't/data/witnesses/teiwit.xml' ); |
160 | # is( ref( $xmlwit ), 'Text::Tradition::Witness', "Created witness from XML file" ); |
161 | # if( $xmlwit ) { |
162 | # is( $xmlwit->sigil, 'V887', "XML witness has correct sigil" ); |
163 | # ok( $xmlwit->is_layered, "Picked up correction layer" ); |
164 | # is( @{$xmlwit->path}, 185, "Got correct text length" ); |
165 | # is( @{$xmlwit->uncorrected_path}, 185, "Got correct a.c. text length" ); |
166 | # } |
167 | |
168 | ## Test use_text |
169 | |
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170 | =end testing |
171 | |
172 | =cut |
173 | |
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174 | subtype 'SourceType', |
175 | as 'Str', |
176 | where { $_ =~ /^(xmldesc|plaintext|json|collation)$/ }, |
177 | message { 'Source type must be one of xmldesc, plaintext, json, collation' }; |
178 | |
179 | subtype 'Sigil', |
180 | as 'Str', |
181 | where { $_ =~ /\A$xml10_name_rx\z/ }, |
182 | message { 'Sigil must be a valid XML attribute string' }; |
183 | |
184 | no Moose::Util::TypeConstraints; |
185 | |
186 | has 'tradition' => ( |
187 | 'is' => 'ro', |
188 | 'isa' => 'Text::Tradition', |
189 | 'required' => 1, |
190 | ); |
191 | |
192 | # Sigil. Required identifier for a witness, but may be found inside |
193 | # the XML file. |
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194 | has 'sigil' => ( |
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195 | is => 'ro', |
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196 | isa => 'Sigil', |
197 | predicate => 'has_sigil', |
198 | writer => '_set_sigil', |
199 | ); |
200 | |
201 | # Other identifying information |
202 | has 'identifier' => ( |
203 | is => 'rw', |
204 | isa => 'Str', |
205 | ); |
206 | |
207 | has 'settlement' => ( |
208 | is => 'rw', |
209 | isa => 'Str', |
210 | ); |
211 | |
212 | has 'repository' => ( |
213 | is => 'rw', |
214 | isa => 'Str', |
215 | ); |
216 | |
217 | has 'idno' => ( |
218 | is => 'rw', |
219 | isa => 'Str', |
220 | ); |
221 | |
222 | has 'sourcetype' => ( |
223 | is => 'ro', |
224 | isa => 'SourceType', |
225 | required => 1, |
226 | ); |
227 | |
228 | has 'language' => ( |
229 | is => 'ro', |
230 | isa => 'Str', |
231 | default => 'Default', |
232 | ); |
233 | |
234 | # Source. Can be XML obj, JSON data struct, or string. |
235 | # Not used if the witness is created by parsing a collation. |
236 | has 'file' => ( |
237 | is => 'ro', |
238 | isa => 'Str', |
239 | predicate => 'has_file', |
240 | ); |
241 | |
242 | has 'string' => ( |
243 | is => 'ro', |
244 | isa => 'Str', |
245 | predicate => 'has_string', |
246 | ); |
247 | |
248 | has 'object' => ( # could be anything. |
249 | is => 'ro', |
250 | predicate => 'has_object', |
251 | clearer => 'clear_object', |
252 | ); |
253 | |
254 | # In the case of a TEI document with multiple texts, specify |
255 | # which text is the root. Should be an XPath expression. |
256 | has 'use_text' => ( |
257 | is => 'ro', |
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258 | isa => 'Str', |
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259 | ); |
260 | |
261 | has 'msdesc' => ( # if we started with a TEI doc |
262 | is => 'ro', |
263 | isa => 'XML::LibXML::Element', |
264 | predicate => 'has_msdesc', |
265 | writer => '_save_msdesc', |
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266 | ); |
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267 | |
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268 | # Text. This is an array of strings (i.e. word tokens). |
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269 | # TODO Think about how to handle this for the case of pre-prepared |
270 | # collations, where the tokens are in the graph already. |
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271 | has 'text' => ( |
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272 | is => 'rw', |
273 | isa => 'ArrayRef[Str]', |
274 | predicate => 'has_text', |
275 | ); |
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276 | |
277 | has 'layertext' => ( |
278 | is => 'rw', |
279 | isa => 'ArrayRef[Str]', |
280 | predicate => 'has_layertext', |
281 | ); |
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282 | |
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283 | # Path. This is an array of Reading nodes that can be saved during |
284 | # initialization, but should be cleared before saving in a DB. |
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285 | has 'path' => ( |
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286 | is => 'rw', |
287 | isa => 'ArrayRef[Text::Tradition::Collation::Reading]', |
288 | predicate => 'has_path', |
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289 | clearer => 'clear_path', |
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290 | ); |
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291 | |
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292 | has 'uncorrected_path' => ( |
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293 | is => 'rw', |
294 | isa => 'ArrayRef[Text::Tradition::Collation::Reading]', |
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295 | clearer => 'clear_uncorrected_path', |
296 | ); |
297 | |
298 | has 'is_layered' => ( |
299 | is => 'rw', |
300 | isa => 'Bool', |
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301 | ); |
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302 | |
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303 | # If we set an uncorrected path, ever, remember that we did so. |
304 | around 'uncorrected_path' => sub { |
305 | my $orig = shift; |
306 | my $self = shift; |
307 | |
308 | $self->is_layered( 1 ); |
309 | $self->$orig( @_ ); |
310 | }; |
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311 | |
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312 | sub BUILD { |
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313 | my $self = shift; |
314 | if( $self->has_source ) { |
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315 | my $init_sub = '_init_from_' . $self->sourcetype; |
316 | $self->$init_sub(); |
317 | # Remove our XML / source objects; we no longer need them. |
318 | $self->clear_object if $self->has_object; |
319 | $self->tradition->collation->make_witness_path( $self ); |
320 | } |
321 | return $self; |
322 | } |
323 | |
324 | sub has_source { |
325 | my $self = shift; |
326 | return $self->has_file || $self->has_string || $self->has_object; |
327 | } |
328 | |
329 | sub _init_from_xmldesc { |
330 | my $self = shift; |
331 | my $xmlobj; |
332 | if( $self->has_object ) { |
333 | unless( ref( $self->object ) eq 'XML::LibXML::Element' ) { |
334 | throw( ident => "bad source", |
335 | message => "Source object must be an XML::LibXML::Element (this is " |
336 | . ref( $self->object ) . ");" ); |
337 | } |
338 | $xmlobj = $self->object; |
339 | } else { |
340 | my $parser = XML::LibXML->new(); |
341 | my $parsersub = $self->has_file ? 'parse_file' : 'parse_string'; |
342 | try { |
343 | $xmlobj = $parser->$parsersub( $self->file )->documentElement; |
344 | } catch( XML::LibXML::Error $e ) { |
345 | throw( ident => "bad source", |
346 | message => "XML parsing error: " . $e->as_string ); |
347 | } |
348 | } |
349 | |
350 | unless( $xmlobj->nodeName eq 'TEI' ) { |
351 | throw( ident => "bad source", |
352 | message => "Source XML must be TEI (this is " . $xmlobj->nodeName . ")" ); |
353 | } |
354 | |
355 | # Set up the tags we need, with or without namespaces. |
356 | map { $tags{$_} = "//$_" } |
357 | qw/ msDesc msName settlement repository idno p lg w seg add del /; |
358 | # Set up our XPath object |
359 | my $xpc = _xpc_for_el( $xmlobj ); |
360 | # Use namespace-aware tags if we have to |
361 | if( $xmlobj->namespaceURI ) { |
362 | map { $tags{$_} = "//tei:$_" } keys %tags; |
363 | } |
364 | |
365 | # Get the identifier |
366 | if( my $desc = $xpc->find( $tags{msDesc} ) ) { |
367 | my $descnode = $desc->get_node(1); |
368 | $self->_save_msdesc( $descnode ); |
369 | # First try to use settlement/repository/idno. |
370 | my( $setNode, $reposNode, $idNode ) = |
371 | ( $xpc->find( $tags{settlement}, $descnode )->get_node(1), |
372 | $xpc->find( $tags{repository}, $descnode )->get_node(1), |
373 | $xpc->find( $tags{idno}, $descnode )->get_node(1) ); |
374 | $self->settlement( $setNode ? $setNode->textContent : '' ); |
375 | $self->repository( $reposNode ? $reposNode->textContent : '' ); |
376 | $self->idno( $idNode ? $idNode->textContent : '' ); |
377 | if( $self->settlement && $self->idno ) { |
378 | $self->identifier( join( ' ', $self->{'settlement'}, $self->{'idno'} ) ); |
379 | } else { |
380 | # Look for an msName. |
381 | my $msNameNode = $xpc->find( $tags{msName}, $descnode )->get_node(1); |
382 | if( $msNameNode ) { |
383 | $self->identifier( $msNameNode->textContent ); |
384 | } else { |
385 | # We have an msDesc but who knows what is in it? |
386 | my $desc = $descnode->textContent; |
387 | $desc =~ s/\n/ /gs; |
388 | $desc =~ s/\s+/ /g; |
389 | $self->identifier( $desc ); |
390 | } |
391 | } |
392 | if( $descnode->hasAttribute('xml:id') ) { |
393 | $self->_set_sigil( $descnode->getAttribute('xml:id') ); |
394 | } elsif( !$self->has_sigil ) { |
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395 | throw( ident => 'missing sigil', |
396 | message => 'Could not find xml:id witness sigil' ); |
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397 | } |
398 | } else { |
399 | throw( ident => "bad source", |
400 | message => "Could not find manuscript description element in TEI header" ); |
401 | } |
402 | |
403 | # Now get the words out. |
404 | my @words; |
405 | my @layerwords; # if the witness has layers |
406 | # First, make sure all the words are wrapped in tags. |
407 | # TODO Make this not necessarily dependent upon whitespace... |
408 | word_tag_wrap( $xmlobj ); |
409 | # Now go text hunting. |
410 | my @textnodes; |
411 | if( $self->use_text ) { |
412 | @textnodes = $xpc->findnodes( $self->use_text ); |
413 | } else { |
414 | # Use the first 'text' node in the document. |
415 | @textnodes = $xmlobj->getElementsByTagName( 'text' ); |
416 | } |
417 | my $teitext = $textnodes[0]; |
418 | if( $teitext ) { |
419 | _tokenize_text( $self, $teitext, \@words, \@layerwords ); |
420 | } else { |
421 | throw( ident => "bad source", |
422 | message => "No text element in document '" . $self->{'identifier'} . "!" ); |
423 | } |
424 | |
425 | $self->path( \@words ); |
426 | my $a = join( ' ', map { $_->text } @words ); |
427 | my $b = join( ' ', map { $_->text } @layerwords ); |
428 | if( $a ne $b ) { |
429 | $self->uncorrected_path( \@layerwords ); |
430 | } |
431 | # TODO set self->text |
432 | } |
433 | |
434 | sub _tokenize_text { |
435 | my( $self, $teitext, $wordlist, $uncorrlist ) = @_; |
436 | # Strip out the words. |
437 | my $xpc = _xpc_for_el( $teitext ); |
438 | my @divs = $xpc->findnodes( '//*[starts-with(name(.), "div")]' ); |
439 | foreach( @divs ) { |
440 | my $place_str; |
441 | if( my $n = $_->getAttribute( 'n' ) ) { |
442 | $place_str = '#DIV_' . $n . '#'; |
443 | } else { |
444 | $place_str = '#DIV#'; |
445 | } |
446 | $self->_objectify_words( $teitext, $wordlist, $uncorrlist, $place_str ); |
447 | } # foreach <div/> |
448 | |
449 | # But maybe we don't have any divs. Just paragraphs. |
450 | unless( @divs ) { |
451 | $self->_objectify_words( $teitext, $wordlist, $uncorrlist ); |
452 | } |
453 | } |
454 | |
455 | sub _objectify_words { |
456 | my( $self, $element, $wordlist, $uncorrlist, $divmarker ) = @_; |
457 | |
458 | my $xpc = _xpc_for_el( $element ); |
459 | my $xpexpr = '.' . $tags{p} . '|.' . $tags{lg}; |
460 | my @pgraphs = $xpc->findnodes( $xpexpr ); |
461 | return () unless @pgraphs; |
462 | # Set up an expression to look for words and segs |
463 | $xpexpr = '.' . $tags{w} . '|.' . $tags{seg}; |
464 | foreach my $pg ( @pgraphs ) { |
465 | # If this paragraph is the descendant of a note element, |
466 | # skip it. |
467 | my @noop_container = $xpc->findnodes( 'ancestor::note', $pg ); |
468 | next if scalar @noop_container; |
469 | # Get the text of each node |
470 | my $first_word = 1; |
471 | # Hunt down each wrapped word/seg, and make an object (or two objects) |
472 | # of it, if necessary. |
473 | foreach my $c ( $xpc->findnodes( $xpexpr, $pg ) ) { |
474 | my( $text, $uncorr ) = _get_word_object( $c ); |
475 | # try { |
476 | # ( $text, $uncorr ) = _get_word_object( $c ); |
477 | # } catch( Text::Tradition::Error $e |
478 | # where { $_->has_tag( 'lb' ) } ) { |
479 | # next; |
480 | # } |
481 | unless( defined $text || defined $uncorr ) { |
482 | print STDERR "WARNING: no text in node " . $c->nodeName |
483 | . "\n" unless $c->nodeName eq 'lb'; |
484 | next; |
485 | } |
486 | print STDERR "DEBUG: space found in element node " |
487 | . $c->nodeName . "\n" if $text =~ /\s/ || $uncorr =~ /\s/; |
488 | |
489 | my $ctr = @$wordlist > @$uncorrlist ? @$wordlist : @$uncorrlist; |
490 | while( $self->tradition->collation->reading( $self->sigil.'r'.$ctr ) ) { |
491 | $ctr++; |
492 | } |
493 | my $id = $self->sigil . 'r' . $ctr; |
494 | my( $word, $acword ); |
495 | if( $text ) { |
496 | $word = $self->tradition->collation->add_reading( |
497 | { 'id' => $id, 'text' => $text }); |
498 | } |
499 | if( $uncorr && $uncorr ne $text ) { |
500 | $id .= '_ac'; |
501 | $acword = $self->tradition->collation->add_reading( |
502 | { 'id' => $id, 'text' => $uncorr }); |
503 | } elsif( $uncorr ) { |
504 | $acword = $word; |
505 | } |
506 | |
507 | # if( $first_word ) { |
508 | # $first_word = 0; |
509 | # # Set the relevant sectioning markers |
510 | # if( $divmarker ) { |
511 | # $w->add_placeholder( $divmarker ); |
512 | # $divmarker = undef; |
513 | # } |
514 | # $w->add_placeholder( '#PG#' ); |
515 | # } |
516 | push( @$wordlist, $word ) if $word; |
517 | push( @$uncorrlist, $acword ) if $acword; |
518 | } |
519 | } |
520 | } |
521 | |
522 | # Given a word or segment node, make a Reading object for the word |
523 | # therein. Make two Reading objects if there is an 'uncorrected' vs. |
524 | # 'corrected' state. |
525 | |
526 | sub _get_word_strings { |
527 | my( $node ) = @_; |
528 | my( $text, $uncorrtext ); |
529 | # We can have an lb or pb in the middle of a word; if we do, the |
530 | # whitespace (including \n) after the break becomes insignificant |
531 | # and we want to nuke it. |
532 | my $strip_leading_space = 0; |
533 | my $word_excluded = 0; |
534 | my $xpc = _xpc_for_el( $node ); |
535 | # TODO This does not cope with nested add/dels. |
536 | my @addition = $xpc->findnodes( 'ancestor::' . $tags{add} ); |
537 | my @deletion = $xpc->findnodes( 'ancestor::' . $tags{del} ); |
538 | foreach my $c ($node->childNodes() ) { |
539 | if( $c->nodeName eq 'num' |
540 | && defined $c->getAttribute( 'value' ) ) { |
541 | # Push the number. |
542 | $text .= $c->getAttribute( 'value' ) unless @deletion; |
543 | $uncorrtext .= $c->getAttribute( 'value' ) unless @addition; |
544 | # If this is just after a line/page break, return to normal behavior. |
545 | $strip_leading_space = 0; |
546 | } elsif ( $c->nodeName =~ /^[lp]b$/ ) { |
547 | # Set a flag that strips leading whitespace until we |
548 | # get to the next bit of non-whitespace. |
549 | $strip_leading_space = 1; |
550 | } elsif ( $c->nodeName eq 'fw' # for catchwords |
551 | || $c->nodeName eq 'sic' |
552 | || $c->nodeName eq 'note' #TODO: decide how to deal with notes |
553 | || $c->textContent eq '' |
554 | || ref( $c ) eq 'XML::LibXML::Comment' ) { |
555 | $word_excluded = 1 if $c->nodeName =~ /^(fw|sic)$/; |
556 | next; |
557 | } elsif( $c->nodeName eq 'add' ) { |
558 | my( $use, $discard ) = _get_text_from_node( $c ); |
559 | $text .= $use; |
560 | } elsif( $c->nodeName eq 'del' ) { |
561 | my( $discard, $use ) = _get_text_from_node( $c ); |
562 | $uncorrtext .= $use; |
563 | } else { |
564 | my $tagtxt; |
565 | if( ref( $c ) eq 'XML::LibXML::Text' ) { |
566 | # A text node. |
567 | $tagtxt = $c->textContent; |
568 | } else { |
569 | $tagtxt = _get_text_from_node( $c ); |
570 | } |
571 | if( $strip_leading_space ) { |
572 | $tagtxt =~ s/^[\s\n]+//s; |
573 | # Unset the flag as soon as we see non-whitespace. |
574 | $strip_leading_space = 0 if $tagtxt; |
575 | } |
576 | $text .= $tagtxt; |
577 | $uncorrtext .= $tagtxt; |
578 | } |
579 | } |
580 | throw( ident => "text not found", |
581 | tags => [ $node->nodeName ], |
582 | message => "No text found in node " . $node->toString(0) ) |
583 | unless $text || $uncorrtext || $word_excluded || $node->toString(0) =~/gap/; |
584 | return( $text, $uncorrtext ); |
585 | } |
586 | |
587 | sub _split_words { |
588 | my( $self, $string, $c ) = @_; |
589 | my @raw_words = split( /\s+/, $string ); |
590 | my @words; |
591 | foreach my $w ( @raw_words ) { |
592 | my $id = $self->sigil . 'r'. $c++; |
593 | my %opts = ( 'text' => $w, 'id' => $id, 'language' => $self->language ); |
594 | my $w_obj = $self->tradition->collation->add_reading( \%opts ); |
595 | # Skip any words that have been canonized out of existence. |
596 | next if( length( $w_obj->text ) == 0 ); |
597 | push( @words, $w_obj ); |
598 | } |
599 | return @words; |
600 | } |
601 | |
602 | sub _init_from_json { |
603 | my( $self ) = shift; |
604 | my $wit; |
605 | if( $self->has_object ) { |
606 | $wit = $self->object; |
65ed66b9 |
607 | } elsif( $self->has_string ) { |
608 | $wit = from_json( $self->string ); |
609 | } elsif( $self->has_file ) { |
610 | my $ok = open( INPUT, $self->file ); |
611 | unless( $ok ) { |
612 | throw( ident => "bad source", |
613 | message => 'Could not open ' . $self->file . ' for reading' ); |
614 | } |
615 | binmode( INPUT, ':encoding(UTF-8)' ); |
616 | my @lines = <INPUT>; |
617 | close INPUT; |
618 | $wit = from_json( join( '', @lines ) ); |
fae52efd |
619 | } |
620 | |
65ed66b9 |
621 | if( exists $wit->{'id'} ) { |
622 | $self->_set_sigil( $wit->{'id'} ); |
623 | } elsif( !$self->has_sigil ) { |
624 | throw( ident => 'missing sigil', |
625 | message => 'Could not find witness sigil (id) in JSON spec' ); |
626 | } |
fae52efd |
627 | $self->identifier( $wit->{'name'} ); |
628 | my @words; |
629 | my @layerwords; |
038d6b50 |
630 | my( @text, @layertext ); |
fae52efd |
631 | if( exists $wit->{'content'} ) { |
632 | # We need to tokenize the text ourselves. |
633 | @words = _split_words( $self, $wit->{'content'} ); |
634 | } elsif( exists $wit->{'tokens'} ) { |
635 | # We have a bunch of pretokenized words. |
636 | my $ctr = 0; |
637 | foreach my $token ( @{$wit->{'tokens'}} ) { |
638 | my $w_obj = $self->tradition->collation->add_reading({ |
65ed66b9 |
639 | 'text' => $token->{'t'}, 'id' => $self->sigil . 'r' . $ctr++ }); |
fae52efd |
640 | push( @words, $w_obj ); |
038d6b50 |
641 | push( @text, $token->{'t'} ); # TODO unless...? |
fae52efd |
642 | } |
643 | ## TODO rethink this JSOn mechanism |
644 | if( exists $wit->{'layertokens'} ) { |
645 | foreach my $token ( @{$wit->{'layertokens'}} ) { |
646 | my $w_obj = $self->tradition->collation->add_reading({ |
65ed66b9 |
647 | 'text' => $token->{'t'}, 'id' => $self->sigil . 'r' . $ctr++ }); |
fae52efd |
648 | push( @layerwords, $w_obj ); |
038d6b50 |
649 | push( @layertext, $token->{'t'} ); |
7158714d |
650 | } |
fae52efd |
651 | } |
7158714d |
652 | } |
038d6b50 |
653 | $self->text( \@text ); |
654 | $self->layertext( \@layertext ) if @layertext; |
fae52efd |
655 | $self->path( \@words ); |
656 | $self->uncorrected_path( \@layerwords ) if @layerwords; |
7158714d |
657 | } |
658 | |
fae52efd |
659 | sub _init_from_plaintext { |
660 | my( $self ) = @_; |
661 | my $str; |
662 | if( $self->has_file ) { |
663 | my $ok = open( INPUT, $self->file ); |
664 | unless( $ok ) { |
665 | throw( ident => "bad source", |
666 | message => 'Could not open ' . $self->file . ' for reading' ); |
667 | } |
668 | binmode( INPUT, ':encoding(UTF-8)' ); |
669 | my @lines = <INPUT>; |
670 | close INPUT; |
671 | $str = join( '', @lines ); |
672 | } elsif( $self->has_object ) { # ...seriously? |
673 | $str = ${$self->object}; |
674 | } else { |
675 | $str = $self->string; |
676 | } |
677 | |
678 | # TODO allow a different word separation expression |
679 | my @text = split( /\s+/, $str ); |
680 | $self->text( \@text ); |
681 | my @words = _split_words( $self, $str ); |
682 | $self->path( \@words ); |
683 | } |
684 | |
685 | sub throw { |
686 | Text::Tradition::Error->throw( |
687 | 'ident' => 'Witness parsing error', |
688 | 'message' => $_[0], |
689 | ); |
690 | } |
691 | |
692 | sub _xpc_for_el { |
693 | my $el = shift; |
694 | my $xpc = XML::LibXML::XPathContext->new( $el ); |
695 | if( $el->namespaceURI ) { |
696 | $xpc->registerNs( 'tei', $el->namespaceURI ); |
697 | } |
698 | return $xpc; |
699 | } |
700 | |
f025e303 |
701 | =head2 export_as_json |
702 | |
703 | Exports the witness as a JSON structure, with the following keys: |
704 | |
705 | =over 4 |
706 | |
707 | =item * id - The witness sigil |
708 | |
709 | =item * name - The witness identifier |
710 | |
711 | =item * tokens - An array of hashes of the form { "t":"WORD" } |
712 | |
713 | =back |
714 | |
715 | =begin testing |
716 | |
717 | use Text::Tradition; |
fae52efd |
718 | my $trad = Text::Tradition->new(); |
f025e303 |
719 | |
fae52efd |
720 | my @text = qw/ Thhis is a line of text /; |
721 | my $wit = $trad->add_witness( |
f025e303 |
722 | 'sigil' => 'A', |
fae52efd |
723 | 'string' => join( ' ', @text ), |
724 | 'sourcetype' => 'plaintext', |
f025e303 |
725 | 'identifier' => 'test witness', |
726 | ); |
727 | my $jsonstruct = $wit->export_as_json; |
728 | is( $jsonstruct->{'id'}, 'A', "got the right witness sigil" ); |
729 | is( $jsonstruct->{'name'}, 'test witness', "got the right identifier" ); |
730 | is( scalar @{$jsonstruct->{'tokens'}}, 6, "got six text tokens" ); |
731 | foreach my $idx ( 0 .. $#text ) { |
732 | is( $jsonstruct->{'tokens'}->[$idx]->{'t'}, $text[$idx], "tokens look OK" ); |
733 | } |
734 | |
735 | my @ctext = qw( when april with his showers sweet with fruit the drought of march |
736 | has pierced unto the root ); |
fae52efd |
737 | $trad = Text::Tradition->new( |
f025e303 |
738 | 'input' => 'CollateX', |
739 | 'file' => 't/data/Collatex-16.xml' ); |
740 | |
741 | $jsonstruct = $trad->witness('A')->export_as_json; |
742 | is( $jsonstruct->{'id'}, 'A', "got the right witness sigil" ); |
743 | is( $jsonstruct->{'name'}, undef, "got undef for missing identifier" ); |
744 | is( scalar @{$jsonstruct->{'tokens'}}, 17, "got all text tokens" ); |
745 | foreach my $idx ( 0 .. $#ctext ) { |
746 | is( $jsonstruct->{'tokens'}->[$idx]->{'t'}, $ctext[$idx], "tokens look OK" ); |
747 | } |
748 | |
fae52efd |
749 | ## TODO test layertext export |
750 | |
f025e303 |
751 | =end testing |
752 | |
753 | =cut |
754 | |
755 | sub export_as_json { |
756 | my $self = shift; |
757 | my @wordlist = map { { 't' => $_ || '' } } @{$self->text}; |
fae52efd |
758 | my $obj = { |
f025e303 |
759 | 'id' => $self->sigil, |
760 | 'tokens' => \@wordlist, |
761 | 'name' => $self->identifier, |
762 | }; |
fae52efd |
763 | if( $self->is_layered ) { |
764 | my @lwlist = map { { 't' => $_ || '' } } @{$self->uncorrected}; |
765 | $obj->{'layertokens'} = \@lwlist; |
766 | } |
767 | return $obj; |
f025e303 |
768 | } |
769 | |
dd3b58b0 |
770 | no Moose; |
771 | __PACKAGE__->meta->make_immutable; |
7158714d |
772 | |
773 | =head1 BUGS / TODO |
774 | |
775 | =over |
776 | |
fae52efd |
777 | =item * Support encodings other than UTF-8 |
7158714d |
778 | |
779 | =back |
780 | |
781 | =head1 LICENSE |
782 | |
783 | This package is free software and is provided "as is" without express |
784 | or implied warranty. You can redistribute it and/or modify it under |
785 | the same terms as Perl itself. |
786 | |
787 | =head1 AUTHOR |
788 | |
789 | Tara L Andrews E<lt>aurum@cpan.orgE<gt> |