@@ -131,7 +131,7 @@ private function interpreteSpec()
131131 }
132132 } // end foreach subfield spec
133133 }
134- } else if ($ this ->spec ->offsetExists ('indicator ' )) {
134+ } elseif ($ this ->spec ->offsetExists ('indicator ' )) {
135135 if ($ this ->field instanceof File_MARC_Data_Field) {
136136 /*
137137 * Field SubSpec validation
@@ -144,7 +144,7 @@ private function interpreteSpec()
144144 continue ; // field subspec must be valid
145145 }
146146 }
147- $ position = (int )$ this ->currentSpec ['indicator ' ]['position ' ];
147+ $ position = (int ) $ this ->currentSpec ['indicator ' ]['position ' ];
148148 $ this ->ref ($ this ->currentSpec ['indicator ' ], $ this ->field ->getIndicator ($ position ));
149149 }
150150 } else {
@@ -159,7 +159,7 @@ private function interpreteSpec()
159159 continue ; // field subspec must be valid
160160 }
161161 }
162-
162+
163163 $ this ->ref ($ this ->currentSpec ['field ' ], $ this ->field );
164164 }
165165 $ fieldIndex ++;
@@ -168,28 +168,28 @@ private function interpreteSpec()
168168 }
169169
170170 /**
171- * Get the current field index
172- *
173- * @param string $prevTag The previous field tag
174- * @param string $tag The current field tag
175- * @param int $fieldIndex The current field index
176- *
177- * @return int $fieldIndex The current field index
178- */
171+ * Get the current field index.
172+ *
173+ * @param string $prevTag The previous field tag
174+ * @param string $tag The current field tag
175+ * @param int $fieldIndex The current field index
176+ *
177+ * @return int $fieldIndex The current field index
178+ */
179179 private function getFieldIndex ($ prevTag , $ tag , $ fieldIndex )
180180 {
181- if ($ prevTag == $ tag or '' == $ prevTag ) {
181+ if ($ prevTag == $ tag or '' == $ prevTag ) {
182182 return $ fieldIndex ; // iteration of field index will continue
183183 }
184184 $ specTag = $ this ->currentSpec ['field ' ]->getTag ();
185- if ( preg_match ('/ ' .$ specTag .'/ ' , $ tag ) ) {
185+ if ( preg_match ('/ ' .$ specTag .'/ ' , $ tag )) {
186186 // not same field tag, but field spec tag matches
187- return $ fieldIndex ; # iteration of field index will continue
187+ return $ fieldIndex ; // iteration of field index will continue
188188 }
189189 // not same field tag, iteration gets reset
190190 return $ this ->spec ['field ' ]->getIndexStart ();
191191 }
192-
192+
193193 /**
194194 * Iterate on subspecs.
195195 *
@@ -316,7 +316,7 @@ private function validateSubSpec()
316316 break ;
317317
318318 case '~ ' :
319- if (0 < count (
319+ if (0 < count (
320320 array_uintersect (
321321 $ leftSubTerm ,
322322 $ rightSubTerm ,
@@ -335,7 +335,7 @@ function ($v1, $v2) {
335335 break ;
336336
337337 case '!~ ' :
338- if (0 < count (
338+ if (0 < count (
339339 array_uintersect (
340340 $ leftSubTerm ,
341341 $ rightSubTerm ,
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