MateCatFilter::fromLayer2ToLayer0() - Code Metrics - matecat/subfiltering - Measure and Improve Code Quality continuously with Scrutinizer

MateCatFilter::fromLayer2ToLayer0() A
last analyzed 2025-09-26 09:21 UTC

↳ Parent: MateCatFilter

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes

Metric	Value
cc	1
eloc	2
c	0
b	0
f	0
nc	1
nop	1
dl	0
loc	3
ccs	3
cts	3
cp	1
crap	1
rs	10

<?php

namespace Matecat\SubFiltering;

use Exception;
use Matecat\SubFiltering\Commons\Pipeline;
use Matecat\SubFiltering\Filters\CtrlCharsPlaceHoldToAscii;
use Matecat\SubFiltering\Filters\DataRefReplace;
use Matecat\SubFiltering\Filters\DataRefRestore;
use Matecat\SubFiltering\Filters\EmojiToEntity;
use Matecat\SubFiltering\Filters\EncodeControlCharsInXliff;
use Matecat\SubFiltering\Filters\EntityToEmoji;
use Matecat\SubFiltering\Filters\FromLayer2ToRawXML;
use Matecat\SubFiltering\Filters\LtGtEncode;
use Matecat\SubFiltering\Filters\PlaceHoldXliffTags;
use Matecat\SubFiltering\Filters\RemoveDangerousChars;
use Matecat\SubFiltering\Filters\RestorePlaceHoldersToXLIFFLtGt;
use Matecat\SubFiltering\Filters\RestoreXliffTagsContent;
use Matecat\SubFiltering\Filters\SpecialEntitiesToPlaceholdersForView;

/**
 * Class Filter
 *
 * This class is meant to create subfiltering layers to allow data to be safely sent and received from 2 different Layers and real file
 *
 * # Definitions
 *
 * - Raw file, the real XML file in input, with data in XML
 * - Layer 0 is defined to be the Database. The data stored in the database should be in the same form (sanitized if needed) they come from Xliff file
 * - Layer 1 is defined to be external services and resources, for example, MT/TM server. This layer is different from layer 0, HTML subfiltering is applied here
 * - Layer 2 is defined to be the MayeCat UI.
 *
 * # Constraints
 * - We have to maintain the compatibility with PH tags placed inside the XLIff in the form <ph id="[0-9+]" equiv-text="&lt;br/&gt;"/> .
 *     Those tags are placed into the database as XML.
 * - HTML and other variables like android tags and custom features are placed into the database as encoded HTML &lt;br/&gt;
 *
 * - Data sent to the external services like MT/TM are sub-filtered:
 * -- &lt;br/&gt; become <ph id="mtc_[0-9]+" equiv-text="base64:Jmx0O2JyLyZndDs="/>
 * -- Existent tags in the XLIFF like <ph id="[0-9+]" equiv-text="&lt;br/&gt;"/> will leave as is
 *
 *
 * @package SubFiltering
 */
class MateCatFilter extends AbstractFilter {

    /**
     * Transforms database raw XML content (Layer 0) to intermediate structures (Layer 1).
     *
     * @param string      $segment The data segment to transform from Layer 0 to Layer 1.
     * @param string|null $cid     Optional context identifier for the transformation process.
     *
     * @return string The transformed segment in Layer 1 format.
     * @throws Exception If the transformation process fails.
     */
    public function fromLayer0ToLayer1( string $segment, ?string $cid = null ): string {

        $channel = new Pipeline( $this->source, $this->target, $this->dataRefMap );

        $this->configureFromLayer0ToLayer1Pipeline( $channel );

        // Allow the feature set to modify the pipeline for this specific transformation.
        /** @var $channel Pipeline */
        $channel = $this->featureSet->filter( 'fromLayer0ToLayer1', $channel );

        // Process the segment and return the result.
        return $channel->transform( $segment );

    }

    /**
     * Used to transform database raw XML content (Layer 0) to the UI structures (Layer 2)
     *
     * @param string $segment
     *
     * @return string
     * @throws Exception
     */
    public function fromLayer0ToLayer2( string $segment ): string {
        return $this->fromLayer1ToLayer2(
                $this->fromLayer0ToLayer1( $segment )
        );
    }

    /**
     * Used to transform database raw XML content (Layer 0) to the UI structures (Layer 2)
     *
     * @param string $segment
     *
     * @return string
     * @throws Exception
     */
    public function fromLayer1ToLayer2( string $segment ): string {
        $channel = new Pipeline( $this->source, $this->target, $this->dataRefMap );
        $channel->addLast( SpecialEntitiesToPlaceholdersForView::class );
        $channel->addLast( EntityToEmoji::class );
        $channel->addLast( DataRefReplace::class );

        /** @var $channel Pipeline */
        $channel = $this->featureSet->filter( 'fromLayer1ToLayer2', $channel );

        return $channel->transform( $segment );
    }

    /**
     * Used to transform UI data (Layer 2) to the XML structures (Layer 1)
     *
     * @param string $segment
     *
     * @return string
     * @throws Exception
     */
    public function fromLayer2ToLayer1( string $segment ): string {
        $channel = new Pipeline( $this->source, $this->target, $this->dataRefMap );
        $channel->addLast( CtrlCharsPlaceHoldToAscii::class );
        $channel->addLast( PlaceHoldXliffTags::class );
        $channel->addLast( FromLayer2TorawXML::class );
        $channel->addLast( EmojiToEntity::class );
        $channel->addLast( RestoreXliffTagsContent::class );
        $channel->addLast( RestorePlaceHoldersToXLIFFLtGt::class );
        $channel->addLast( DataRefRestore::class );

        /** @var $channel Pipeline */
        $channel = $this->featureSet->filter( 'fromLayer2ToLayer1', $channel );

        return $channel->transform( $segment );
    }

    /**
     *
     * Used to transform the UI structures (Layer 2) to allow them to be stored in the database (Layer 0)
     *
     * It is assumed that the UI sends strings having XLF tags not encoded and HTML in XML encoding representation:
     * - &lt;b&gt;de <ph id="mtc_1" equiv-text="base64:JTEkcw=="/>, <x id="1" /> &lt;/b&gt;que
     *
     * @param string $segment
     *
     * @return string
     * @throws Exception
     */
    public function fromLayer2ToLayer0( string $segment ): string {
        return $this->fromLayer1ToLayer0(
                $this->fromLayer2ToLayer1( $segment )
        );
    }

    /**
     * Transforms content from UI structures (Layer 1) back to database raw XML content (Layer 0).
     *
     * @param string $segment The segment of content to be transformed from Layer 1 to Layer 0.
     *
     * @return string The resulting transformed content in Layer 0 format.
     * @throws Exception
     */
    public function fromLayer1ToLayer0( string $segment ): string {
        return parent::fromLayer1ToLayer0( $segment );
    }

    /**
     * Used to convert the raw XLIFF content from the file to an XML for the database (Layer 0)
     *
     * @param string $segment
     *
     * @return string
     * @throws Exception
     */
    public function fromRawXliffToLayer0( string $segment ): string {
        $channel = new Pipeline( $this->source, $this->target, $this->dataRefMap );
        $channel->addLast( RemoveDangerousChars::class );
        $channel->addLast( PlaceHoldXliffTags::class );
        $channel->addLast( EncodeControlCharsInXliff::class );
        $channel->addLast( RestoreXliffTagsContent::class );
        $channel->addLast( RestorePlaceHoldersToXLIFFLtGt::class );

        /** @var $channel Pipeline */
        $channel = $this->featureSet->filter( 'fromRawXliffToLayer0', $channel );

        return $channel->transform( $segment );
    }

    /**
     * Used to export Database XML string into TMX files as valid XML
     *
     * @param string $segment
     *
     * @return string
     * @throws Exception
     */
    public function fromLayer0ToRawXliff( string $segment ): string {
        $channel = new Pipeline( $this->source, $this->target, $this->dataRefMap );
        $channel->addLast( PlaceHoldXliffTags::class );
        $channel->addLast( RemoveDangerousChars::class );
        $channel->addLast( RestoreXliffTagsContent::class );
        $channel->addLast( RestorePlaceHoldersToXLIFFLtGt::class );
        $channel->addLast( LtGtEncode::class );

        /** @var $channel Pipeline */
        $channel = $this->featureSet->filter( 'fromLayer0ToRawXliff', $channel );

        return $channel->transform( $segment );
    }

    /**
     * Used to align the tags when created from Layer 0 to Layer 1, when converting data from the database is possible that HTML placeholders are in different positions
     * and their id are different because they are simple sequences.
     * We must place the right source tag ID in the corresponding target tags.
     *
     * The source holds the truth :D
     * realigns the target ids by matching the content of the base64.
     *
     * @param string $source
     * @param string $target
     *
     * @return string
     * @see getSegmentsController in matecat
     *
     */
    public function realignIDInLayer1( string $source, string $target ): string {
        $pattern = '|<ph id ?= ?["\'](mtc_[0-9]+)["\'] ?(equiv-text=["\'].+?["\'] ?)/>|ui';
        preg_match_all( $pattern, $source, $src_tags, PREG_PATTERN_ORDER );
        preg_match_all( $pattern, $target, $trg_tags, PREG_PATTERN_ORDER );

        if ( count( $src_tags[ 0 ] ) != count( $trg_tags[ 0 ] ) ) {
            return $target; //WRONG NUMBER OF TAGS, in the translation there is a tag mismatch, let the user fix it
        }

        $notFoundTargetTags = [];

        $start_offset = 0;
        foreach ( $trg_tags[ 2 ] as $trg_tag_position => $b64 ) {

            $src_tag_position = array_search( $b64, $src_tags[ 2 ], true );

            if ( $src_tag_position === false ) {
                //this means that the content of a tag is changed in the translation
                $notFoundTargetTags[ $trg_tag_position ] = $b64;
                continue;
            } else {
                unset( $src_tags[ 2 ][ $src_tag_position ] ); // remove the index to allow array_search to find the equal next one if it is present
            }

            //replace ONLY ONE element AND the EXACT ONE
            $tag_position_in_string = strpos( $target, $trg_tags[ 0 ][ $trg_tag_position ], $start_offset );
            $target                 = (string)substr_replace( $target, $src_tags[ 0 ][ $src_tag_position ], $tag_position_in_string, strlen( $trg_tags[ 0 ][ $trg_tag_position ] ) );
            $start_offset           = $tag_position_in_string + strlen( $src_tags[ 0 ][ $src_tag_position ] ); // set the next starting point
        }

        if ( !empty( $notFoundTargetTags ) ) {
            //do something ?!? how to re-align if they are changed in value and changed in position?
        }

        return $target;
    }
}

1		<?php
2
3		namespace Matecat\SubFiltering;
4
5		use Exception;
6		use Matecat\SubFiltering\Commons\Pipeline;
7		use Matecat\SubFiltering\Filters\CtrlCharsPlaceHoldToAscii;
8		use Matecat\SubFiltering\Filters\DataRefReplace;
9		use Matecat\SubFiltering\Filters\DataRefRestore;
10		use Matecat\SubFiltering\Filters\EmojiToEntity;
11		use Matecat\SubFiltering\Filters\EncodeControlCharsInXliff;
12		use Matecat\SubFiltering\Filters\EntityToEmoji;
13		use Matecat\SubFiltering\Filters\FromLayer2ToRawXML;
14		use Matecat\SubFiltering\Filters\LtGtEncode;
15		use Matecat\SubFiltering\Filters\PlaceHoldXliffTags;
16		use Matecat\SubFiltering\Filters\RemoveDangerousChars;
17		use Matecat\SubFiltering\Filters\RestorePlaceHoldersToXLIFFLtGt;
18		use Matecat\SubFiltering\Filters\RestoreXliffTagsContent;
19		use Matecat\SubFiltering\Filters\SpecialEntitiesToPlaceholdersForView;
20
21		/**
22		* Class Filter
23		*
24		* This class is meant to create subfiltering layers to allow data to be safely sent and received from 2 different Layers and real file
25		*
26		* # Definitions
27		*
28		* - Raw file, the real XML file in input, with data in XML
29		* - Layer 0 is defined to be the Database. The data stored in the database should be in the same form (sanitized if needed) they come from Xliff file
30		* - Layer 1 is defined to be external services and resources, for example, MT/TM server. This layer is different from layer 0, HTML subfiltering is applied here
31		* - Layer 2 is defined to be the MayeCat UI.
32		*
33		* # Constraints
34		* - We have to maintain the compatibility with PH tags placed inside the XLIff in the form <ph id="[0-9+]" equiv-text="<br/>"/> .
35		* Those tags are placed into the database as XML.
36		* - HTML and other variables like android tags and custom features are placed into the database as encoded HTML <br/>
37		*
38		* - Data sent to the external services like MT/TM are sub-filtered:
39		* -- <br/> become <ph id="mtc_[0-9]+" equiv-text="base64:Jmx0O2JyLyZndDs="/>
40		* -- Existent tags in the XLIFF like <ph id="[0-9+]" equiv-text="<br/>"/> will leave as is
41		*
42		*
43		* @package SubFiltering
44		*/
45		class MateCatFilter extends AbstractFilter {
46
47		/**
48		* Transforms database raw XML content (Layer 0) to intermediate structures (Layer 1).
49		*
50		* @param string $segment The data segment to transform from Layer 0 to Layer 1.
51		* @param string\|null $cid Optional context identifier for the transformation process.
52		*
53		* @return string The transformed segment in Layer 1 format.
54		* @throws Exception If the transformation process fails.
55		*/
56	75	public function fromLayer0ToLayer1( string $segment, ?string $cid = null ): string {
57
58	75	$channel = new Pipeline( $this->source, $this->target, $this->dataRefMap );
59
60	75	$this->configureFromLayer0ToLayer1Pipeline( $channel );
61
62		// Allow the feature set to modify the pipeline for this specific transformation.
63		/** @var $channel Pipeline */
64	75	$channel = $this->featureSet->filter( 'fromLayer0ToLayer1', $channel );
65
66		// Process the segment and return the result.
67	75	return $channel->transform( $segment );
68
69		}
70
71		/**
72		* Used to transform database raw XML content (Layer 0) to the UI structures (Layer 2)
73		*
74		* @param string $segment
75		*
76		* @return string
77		* @throws Exception
78		*/
79	41	public function fromLayer0ToLayer2( string $segment ): string {
80	41	return $this->fromLayer1ToLayer2(
81	41	$this->fromLayer0ToLayer1( $segment )
82	41	);
83		}
84
85		/**
86		* Used to transform database raw XML content (Layer 0) to the UI structures (Layer 2)
87		*
88		* @param string $segment
89		*
90		* @return string
91		* @throws Exception
92		*/
93	57	public function fromLayer1ToLayer2( string $segment ): string {
94	57	$channel = new Pipeline( $this->source, $this->target, $this->dataRefMap );
95	57	$channel->addLast( SpecialEntitiesToPlaceholdersForView::class );
96	57	$channel->addLast( EntityToEmoji::class );
97	57	$channel->addLast( DataRefReplace::class );
98
99		/** @var $channel Pipeline */
100	57	$channel = $this->featureSet->filter( 'fromLayer1ToLayer2', $channel );
101
102	57	return $channel->transform( $segment );
103		}
104
105		/**
106		* Used to transform UI data (Layer 2) to the XML structures (Layer 1)
107		*
108		* @param string $segment
109		*
110		* @return string
111		* @throws Exception
112		*/
113	38	public function fromLayer2ToLayer1( string $segment ): string {
114	38	$channel = new Pipeline( $this->source, $this->target, $this->dataRefMap );
115	38	$channel->addLast( CtrlCharsPlaceHoldToAscii::class );
116	38	$channel->addLast( PlaceHoldXliffTags::class );
117	38	$channel->addLast( FromLayer2TorawXML::class );
118	38	$channel->addLast( EmojiToEntity::class );
119	38	$channel->addLast( RestoreXliffTagsContent::class );
120	38	$channel->addLast( RestorePlaceHoldersToXLIFFLtGt::class );
121	38	$channel->addLast( DataRefRestore::class );
122
123		/** @var $channel Pipeline */
124	38	$channel = $this->featureSet->filter( 'fromLayer2ToLayer1', $channel );
125
126	38	return $channel->transform( $segment );
127		}
128
129		/**
130		*
131		* Used to transform the UI structures (Layer 2) to allow them to be stored in the database (Layer 0)
132		*
133		* It is assumed that the UI sends strings having XLF tags not encoded and HTML in XML encoding representation:
134		* - <b>de <ph id="mtc_1" equiv-text="base64:JTEkcw=="/>, <x id="1" /> </b>que
135		*
136		* @param string $segment
137		*
138		* @return string
139		* @throws Exception
140		*/
141	38	public function fromLayer2ToLayer0( string $segment ): string {
142	38	return $this->fromLayer1ToLayer0(
143	38	$this->fromLayer2ToLayer1( $segment )
144	38	);
145		}
146
147		/**
148		* Transforms content from UI structures (Layer 1) back to database raw XML content (Layer 0).
149		*
150		* @param string $segment The segment of content to be transformed from Layer 1 to Layer 0.
151		*
152		* @return string The resulting transformed content in Layer 0 format.
153		* @throws Exception
154		*/
155	69	public function fromLayer1ToLayer0( string $segment ): string {
156	69	return parent::fromLayer1ToLayer0( $segment );
157		}
158
159		/**
160		* Used to convert the raw XLIFF content from the file to an XML for the database (Layer 0)
161		*
162		* @param string $segment
163		*
164		* @return string
165		* @throws Exception
166		*/
167	11	public function fromRawXliffToLayer0( string $segment ): string {
168	11	$channel = new Pipeline( $this->source, $this->target, $this->dataRefMap );
169	11	$channel->addLast( RemoveDangerousChars::class );
170	11	$channel->addLast( PlaceHoldXliffTags::class );
171	11	$channel->addLast( EncodeControlCharsInXliff::class );
172	11	$channel->addLast( RestoreXliffTagsContent::class );
173	11	$channel->addLast( RestorePlaceHoldersToXLIFFLtGt::class );
174
175		/** @var $channel Pipeline */
176	11	$channel = $this->featureSet->filter( 'fromRawXliffToLayer0', $channel );
177
178	11	return $channel->transform( $segment );
179		}
180
181		/**
182		* Used to export Database XML string into TMX files as valid XML
183		*
184		* @param string $segment
185		*
186		* @return string
187		* @throws Exception
188		*/
189	5	public function fromLayer0ToRawXliff( string $segment ): string {
190	5	$channel = new Pipeline( $this->source, $this->target, $this->dataRefMap );
191	5	$channel->addLast( PlaceHoldXliffTags::class );
192	5	$channel->addLast( RemoveDangerousChars::class );
193	5	$channel->addLast( RestoreXliffTagsContent::class );
194	5	$channel->addLast( RestorePlaceHoldersToXLIFFLtGt::class );
195	5	$channel->addLast( LtGtEncode::class );
196
197		/** @var $channel Pipeline */
198	5	$channel = $this->featureSet->filter( 'fromLayer0ToRawXliff', $channel );
199
200	5	return $channel->transform( $segment );
201		}
202
203		/**
204		* Used to align the tags when created from Layer 0 to Layer 1, when converting data from the database is possible that HTML placeholders are in different positions
205		* and their id are different because they are simple sequences.
206		* We must place the right source tag ID in the corresponding target tags.
207		*
208		* The source holds the truth :D
209		* realigns the target ids by matching the content of the base64.
210		*
211		* @param string $source
212		* @param string $target
213		*
214		* @return string
215		* @see getSegmentsController in matecat
216		*
217		*/
218	5	public function realignIDInLayer1( string $source, string $target ): string {
219	5	$pattern = '\|<ph id ?= ?["\'](mtc_[0-9]+)["\'] ?(equiv-text=["\'].+?["\'] ?)/>\|ui';
220	5	preg_match_all( $pattern, $source, $src_tags, PREG_PATTERN_ORDER );
221	5	preg_match_all( $pattern, $target, $trg_tags, PREG_PATTERN_ORDER );
222
223	5	if ( count( $src_tags[ 0 ] ) != count( $trg_tags[ 0 ] ) ) {
224	1	return $target; //WRONG NUMBER OF TAGS, in the translation there is a tag mismatch, let the user fix it
225		}
226
227	4	$notFoundTargetTags = [];
228
229	4	$start_offset = 0;
230	4	foreach ( $trg_tags[ 2 ] as $trg_tag_position => $b64 ) {
231
232	3	$src_tag_position = array_search( $b64, $src_tags[ 2 ], true );
233
234	3	if ( $src_tag_position === false ) {
235		//this means that the content of a tag is changed in the translation
236	2	$notFoundTargetTags[ $trg_tag_position ] = $b64;
237	2	continue;
238		} else {
239	2	unset( $src_tags[ 2 ][ $src_tag_position ] ); // remove the index to allow array_search to find the equal next one if it is present
240		}
241
242		//replace ONLY ONE element AND the EXACT ONE
243	2	$tag_position_in_string = strpos( $target, $trg_tags[ 0 ][ $trg_tag_position ], $start_offset );
244	2	$target = (string)substr_replace( $target, $src_tags[ 0 ][ $src_tag_position ], $tag_position_in_string, strlen( $trg_tags[ 0 ][ $trg_tag_position ] ) );
245	2	$start_offset = $tag_position_in_string + strlen( $src_tags[ 0 ][ $src_tag_position ] ); // set the next starting point
246		}
247
248	4	if ( !empty( $notFoundTargetTags ) ) {
249		//do something ?!? how to re-align if they are changed in value and changed in position?
250		}
251
252	4	return $target;
253		}
254		}

matecat / subfiltering

MateCatFilter::fromLayer2ToLayer0() A last analyzed 2025-09-26 09:21 UTC

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

Filter issues like

MateCatFilter::fromLayer2ToLayer0() A
last analyzed 2025-09-26 09:21 UTC