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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 |
---|---|
167 | * htmlspecialchars. Use this filter to remove or change the processing. Passes a context |
168 | * indicating if the line is added, deleted or unchanged. |
169 | * |
170 | * @since 4.1.0 |
171 | * |
172 | * @param string $processed_line The processed diffed line. |
173 | * @param string $line The unprocessed diffed line. |
174 | * @param string $context The line context. Values are 'added', 'deleted' or 'unchanged'. |
175 | */ |
176 | $line = apply_filters( 'process_text_diff_html', $processed_line, $line, 'added' ); |
177 | } |
178 |
|
179 | if ( $this->_show_split_view ) { |
180 | $r .= '<tr>' . $this->emptyLine() . $this->addedLine( $line ) . "</tr>\n"; |
181 | } else { |
182 | $r .= '<tr>' . $this->addedLine( $line ) . "</tr>\n"; |
183 | } |
184 | } |
185 | return $r; |
Line | Code |
193 | * @return string |
194 | */ |
195 | public function _deleted( $lines, $encode = true ) { |
196 | $r = ''; |
197 | foreach ( $lines as $line ) { |
198 | if ( $encode ) { |
199 | $processed_line = htmlspecialchars( $line ); |
200 |
|
201 | /** This filter is documented in wp-includes/wp-diff.php */ |
202 | $line = apply_filters( 'process_text_diff_html', $processed_line, $line, 'deleted' ); |
203 | } |
204 | if ( $this->_show_split_view ) { |
205 | $r .= '<tr>' . $this->deletedLine( $line ) . $this->emptyLine() . "</tr>\n"; |
206 | } else { |
207 | $r .= '<tr>' . $this->deletedLine( $line ) . "</tr>\n"; |
208 | } |
209 | } |
210 | return $r; |
211 | } |
Line | Code |
218 | * @return string |
219 | */ |
220 | public function _context( $lines, $encode = true ) { |
221 | $r = ''; |
222 | foreach ( $lines as $line ) { |
223 | if ( $encode ) { |
224 | $processed_line = htmlspecialchars( $line ); |
225 |
|
226 | /** This filter is documented in wp-includes/wp-diff.php */ |
227 | $line = apply_filters( 'process_text_diff_html', $processed_line, $line, 'unchanged' ); |
228 | } |
229 | if ( $this->_show_split_view ) { |
230 | $r .= '<tr>' . $this->contextLine( $line ) . $this->contextLine( $line ) . "</tr>\n"; |
231 | } else { |
232 | $r .= '<tr>' . $this->contextLine( $line ) . "</tr>\n"; |
233 | } |
234 | } |
235 | return $r; |
236 | } |