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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 3 times in this file.
Line | Code |
---|---|
155 | * htmlspecialchars. Use this filter to remove or change the processing. Passes a context |
156 | * indicating if the line is added, deleted or unchanged. |
157 | * |
158 | * @since 4.1.0 |
159 | * |
160 | * @param String $processed_line The processed diffed line. |
161 | * @param String $line The unprocessed diffed line. |
162 | * @param string null The line context. Values are 'added', 'deleted' or 'unchanged'. |
163 | */ |
164 | $line = apply_filters( 'process_text_diff_html', $processed_line, $line, 'added' ); |
165 | } |
166 |
|
167 | if ( $this->_show_split_view ) { |
168 | $r .= '<tr>' . $this->emptyLine() . $this->emptyLine() . $this->addedLine( $line ) . "</tr>\n"; |
169 | } else { |
170 | $r .= '<tr>' . $this->addedLine( $line ) . "</tr>\n"; |
171 | } |
172 | } |
173 | return $r; |
Line | Code |
182 | * @return string |
183 | */ |
184 | public function _deleted( $lines, $encode = true ) { |
185 | $r = ''; |
186 | foreach ($lines as $line) { |
187 | if ( $encode ) { |
188 | $processed_line = htmlspecialchars( $line ); |
189 |
|
190 | /** This filter is documented in wp-includes/wp-diff.php */ |
191 | $line = apply_filters( 'process_text_diff_html', $processed_line, $line, 'deleted' ); |
192 | } |
193 | if ( $this->_show_split_view ) { |
194 | $r .= '<tr>' . $this->deletedLine( $line ) . $this->emptyLine() . $this->emptyLine() . "</tr>\n"; |
195 | } else { |
196 | $r .= '<tr>' . $this->deletedLine( $line ) . "</tr>\n"; |
197 | } |
198 |
|
199 | } |
200 | return $r; |
Line | Code |
209 | * @return string |
210 | */ |
211 | public function _context( $lines, $encode = true ) { |
212 | $r = ''; |
213 | foreach ($lines as $line) { |
214 | if ( $encode ) { |
215 | $processed_line = htmlspecialchars( $line ); |
216 |
|
217 | /** This filter is documented in wp-includes/wp-diff.php */ |
218 | $line = apply_filters( 'process_text_diff_html', $processed_line, $line, 'unchanged' ); |
219 | } |
220 | if ( $this->_show_split_view ) { |
221 | $r .= '<tr>' . $this->contextLine( $line ) . $this->emptyLine() . $this->contextLine( $line ) . "</tr>\n"; |
222 | } else { |
223 | $r .= '<tr>' . $this->contextLine( $line ) . "</tr>\n"; |
224 | } |
225 | } |
226 | return $r; |
227 | } |