diff options
Diffstat (limited to 'srcs/wordpress/wp-includes/Text/Diff/Engine/string.php')
| -rw-r--r-- | srcs/wordpress/wp-includes/Text/Diff/Engine/string.php | 248 |
1 files changed, 0 insertions, 248 deletions
diff --git a/srcs/wordpress/wp-includes/Text/Diff/Engine/string.php b/srcs/wordpress/wp-includes/Text/Diff/Engine/string.php deleted file mode 100644 index 76a1111..0000000 --- a/srcs/wordpress/wp-includes/Text/Diff/Engine/string.php +++ /dev/null @@ -1,248 +0,0 @@ -<?php -/** - * Parses unified or context diffs output from eg. the diff utility. - * - * Example: - * <code> - * $patch = file_get_contents('example.patch'); - * $diff = new Text_Diff('string', array($patch)); - * $renderer = new Text_Diff_Renderer_inline(); - * echo $renderer->render($diff); - * </code> - * - * Copyright 2005 Örjan Persson <o@42mm.org> - * Copyright 2005-2010 The Horde Project (http://www.horde.org/) - * - * See the enclosed file COPYING for license information (LGPL). If you did - * not receive this file, see http://opensource.org/licenses/lgpl-license.php. - * - * @author Örjan Persson <o@42mm.org> - * @package Text_Diff - * @since 0.2.0 - */ -class Text_Diff_Engine_string { - - /** - * Parses a unified or context diff. - * - * First param contains the whole diff and the second can be used to force - * a specific diff type. If the second parameter is 'autodetect', the - * diff will be examined to find out which type of diff this is. - * - * @param string $diff The diff content. - * @param string $mode The diff mode of the content in $diff. One of - * 'context', 'unified', or 'autodetect'. - * - * @return array List of all diff operations. - */ - function diff($diff, $mode = 'autodetect') - { - // Detect line breaks. - $lnbr = "\n"; - if (strpos($diff, "\r\n") !== false) { - $lnbr = "\r\n"; - } elseif (strpos($diff, "\r") !== false) { - $lnbr = "\r"; - } - - // Make sure we have a line break at the EOF. - if (substr($diff, -strlen($lnbr)) != $lnbr) { - $diff .= $lnbr; - } - - if ($mode != 'autodetect' && $mode != 'context' && $mode != 'unified') { - return PEAR::raiseError('Type of diff is unsupported'); - } - - if ($mode == 'autodetect') { - $context = strpos($diff, '***'); - $unified = strpos($diff, '---'); - if ($context === $unified) { - return PEAR::raiseError('Type of diff could not be detected'); - } elseif ($context === false || $unified === false) { - $mode = $context !== false ? 'context' : 'unified'; - } else { - $mode = $context < $unified ? 'context' : 'unified'; - } - } - - // Split by new line and remove the diff header, if there is one. - $diff = explode($lnbr, $diff); - if (($mode == 'context' && strpos($diff[0], '***') === 0) || - ($mode == 'unified' && strpos($diff[0], '---') === 0)) { - array_shift($diff); - array_shift($diff); - } - - if ($mode == 'context') { - return $this->parseContextDiff($diff); - } else { - return $this->parseUnifiedDiff($diff); - } - } - - /** - * Parses an array containing the unified diff. - * - * @param array $diff Array of lines. - * - * @return array List of all diff operations. - */ - function parseUnifiedDiff($diff) - { - $edits = array(); - $end = count($diff) - 1; - for ($i = 0; $i < $end;) { - $diff1 = array(); - switch (substr($diff[$i], 0, 1)) { - case ' ': - do { - $diff1[] = substr($diff[$i], 1); - } while (++$i < $end && substr($diff[$i], 0, 1) == ' '); - $edits[] = new Text_Diff_Op_copy($diff1); - break; - - case '+': - // get all new lines - do { - $diff1[] = substr($diff[$i], 1); - } while (++$i < $end && substr($diff[$i], 0, 1) == '+'); - $edits[] = new Text_Diff_Op_add($diff1); - break; - - case '-': - // get changed or removed lines - $diff2 = array(); - do { - $diff1[] = substr($diff[$i], 1); - } while (++$i < $end && substr($diff[$i], 0, 1) == '-'); - - while ($i < $end && substr($diff[$i], 0, 1) == '+') { - $diff2[] = substr($diff[$i++], 1); - } - if (count($diff2) == 0) { - $edits[] = new Text_Diff_Op_delete($diff1); - } else { - $edits[] = new Text_Diff_Op_change($diff1, $diff2); - } - break; - - default: - $i++; - break; - } - } - - return $edits; - } - - /** - * Parses an array containing the context diff. - * - * @param array $diff Array of lines. - * - * @return array List of all diff operations. - */ - function parseContextDiff(&$diff) - { - $edits = array(); - $i = $max_i = $j = $max_j = 0; - $end = count($diff) - 1; - while ($i < $end && $j < $end) { - while ($i >= $max_i && $j >= $max_j) { - // Find the boundaries of the diff output of the two files - for ($i = $j; - $i < $end && substr($diff[$i], 0, 3) == '***'; - $i++); - for ($max_i = $i; - $max_i < $end && substr($diff[$max_i], 0, 3) != '---'; - $max_i++); - for ($j = $max_i; - $j < $end && substr($diff[$j], 0, 3) == '---'; - $j++); - for ($max_j = $j; - $max_j < $end && substr($diff[$max_j], 0, 3) != '***'; - $max_j++); - } - - // find what hasn't been changed - $array = array(); - while ($i < $max_i && - $j < $max_j && - strcmp($diff[$i], $diff[$j]) == 0) { - $array[] = substr($diff[$i], 2); - $i++; - $j++; - } - - while ($i < $max_i && ($max_j-$j) <= 1) { - if ($diff[$i] != '' && substr($diff[$i], 0, 1) != ' ') { - break; - } - $array[] = substr($diff[$i++], 2); - } - - while ($j < $max_j && ($max_i-$i) <= 1) { - if ($diff[$j] != '' && substr($diff[$j], 0, 1) != ' ') { - break; - } - $array[] = substr($diff[$j++], 2); - } - if (count($array) > 0) { - $edits[] = new Text_Diff_Op_copy($array); - } - - if ($i < $max_i) { - $diff1 = array(); - switch (substr($diff[$i], 0, 1)) { - case '!': - $diff2 = array(); - do { - $diff1[] = substr($diff[$i], 2); - if ($j < $max_j && substr($diff[$j], 0, 1) == '!') { - $diff2[] = substr($diff[$j++], 2); - } - } while (++$i < $max_i && substr($diff[$i], 0, 1) == '!'); - $edits[] = new Text_Diff_Op_change($diff1, $diff2); - break; - - case '+': - do { - $diff1[] = substr($diff[$i], 2); - } while (++$i < $max_i && substr($diff[$i], 0, 1) == '+'); - $edits[] = new Text_Diff_Op_add($diff1); - break; - - case '-': - do { - $diff1[] = substr($diff[$i], 2); - } while (++$i < $max_i && substr($diff[$i], 0, 1) == '-'); - $edits[] = new Text_Diff_Op_delete($diff1); - break; - } - } - - if ($j < $max_j) { - $diff2 = array(); - switch (substr($diff[$j], 0, 1)) { - case '+': - do { - $diff2[] = substr($diff[$j++], 2); - } while ($j < $max_j && substr($diff[$j], 0, 1) == '+'); - $edits[] = new Text_Diff_Op_add($diff2); - break; - - case '-': - do { - $diff2[] = substr($diff[$j++], 2); - } while ($j < $max_j && substr($diff[$j], 0, 1) == '-'); - $edits[] = new Text_Diff_Op_delete($diff2); - break; - } - } - } - - return $edits; - } - -} |
