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