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Neo committed 2025-12-19 00:21:15 -08:00
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commit f73f8bff6d
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upload/ips_kernel/PEAR/Text/Diff/Renderer.php
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<?php
/**
* A class to render Diffs in different formats.
*
* This class renders the diff in classic diff format. It is intended that
* this class be customized via inheritance, to obtain fancier outputs.
*
* $Horde: framework/Text_Diff/Diff/Renderer.php,v 1.8 2005/05/02 19:44:53 chuck Exp $
*
* @package Text_Diff
*/
class Text_Diff_Renderer {
/**
* Number of leading context "lines" to preserve.
*
* This should be left at zero for this class, but subclasses may want to
* set this to other values.
*/
var $_leading_context_lines = 0;
/**
* Number of trailing context "lines" to preserve.
*
* This should be left at zero for this class, but subclasses may want to
* set this to other values.
*/
var $_trailing_context_lines = 0;
/**
* Constructor.
*/
function Text_Diff_Renderer($params = array())
{
foreach ($params as $param => $value) {
$v = '_' . $param;
if (isset($this->$v)) {
$this->$v = $value;
}
}
}
/**
* Get any renderer parameters.
*
* @return array All parameters of this renderer object.
*/
function getParams()
{
return get_object_vars($this);
}
/**
* Renders a diff.
*
* @param Text_Diff $diff A Text_Diff object.
*
* @return string The formatted output.
*/
function render($diff)
{
$xi = $yi = 1;
$block = false;
$context = array();
$nlead = $this->_leading_context_lines;
$ntrail = $this->_trailing_context_lines;
$output = $this->_startDiff();
foreach ($diff->getDiff() as $edit) {
if (is_a($edit, 'Text_Diff_Op_copy')) {
if (is_array($block)) {
if (count($edit->orig) <= $nlead + $ntrail) {
$block[] = $edit;
} else {
if ($ntrail) {
$context = array_slice($edit->orig, 0, $ntrail);
$block[] = &new Text_Diff_Op_copy($context);
}
$output .= $this->_block($x0, $ntrail + $xi - $x0,
$y0, $ntrail + $yi - $y0,
$block);
$block = false;
}
}
$context = $edit->orig;
} else {
if (!is_array($block)) {
$context = array_slice($context, count($context) - $nlead);
$x0 = $xi - count($context);
$y0 = $yi - count($context);
$block = array();
if ($context) {
$block[] = &new Text_Diff_Op_copy($context);
}
}
$block[] = $edit;
}
if ($edit->orig) {
$xi += count($edit->orig);
}
if ($edit->final) {
$yi += count($edit->final);
}
}
if (is_array($block)) {
$output .= $this->_block($x0, $xi - $x0,
$y0, $yi - $y0,
$block);
}
return $output . $this->_endDiff();
}
function _block($xbeg, $xlen, $ybeg, $ylen, &$edits)
{
$output = $this->_startBlock($this->_blockHeader($xbeg, $xlen, $ybeg, $ylen));
foreach ($edits as $edit) {
switch (strtolower(get_class($edit))) {
case 'text_diff_op_copy':
$output .= $this->_context($edit->orig);
break;
case 'text_diff_op_add':
$output .= $this->_added($edit->final);
break;
case 'text_diff_op_delete':
$output .= $this->_deleted($edit->orig);
break;
case 'text_diff_op_change':
$output .= $this->_changed($edit->orig, $edit->final);
break;
}
}
return $output . $this->_endBlock();
}
function _startDiff()
{
return '';
}
function _endDiff()
{
return '';
}
function _blockHeader($xbeg, $xlen, $ybeg, $ylen)
{
if ($xlen > 1) {
$xbeg .= ',' . ($xbeg + $xlen - 1);
}
if ($ylen > 1) {
$ybeg .= ',' . ($ybeg + $ylen - 1);
}
return $xbeg . ($xlen ? ($ylen ? 'c' : 'd') : 'a') . $ybeg;
}
function _startBlock($header)
{
return $header . "\n";
}
function _endBlock()
{
return '';
}
/**
* Added by Matt Mecham
* Space between prefix and string result
* 25-07-2005
*
*/
function _lines($lines, $prefix = ' ')
{
return $prefix . ' ' . implode("\n$prefix", $lines) . "\n";
}
function _context($lines)
{
return $this->_lines($lines);
}
function _added($lines)
{
return $this->_lines($lines, '>');
}
function _deleted($lines)
{
return $this->_lines($lines, '<');
}
function _changed($orig, $final)
{
return $this->_deleted($orig) . "---\n" . $this->_added($final);
}
}
upload/ips_kernel/PEAR/Text/Diff/Renderer/inline.php
+139
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<?php
/**
* "Inline" diff renderer.
*
* This class renders diffs in the Wiki-style "inline" format.
*
* $Horde: framework/Text_Diff/Diff/Renderer/inline.php,v 1.11 2005/05/02 19:49:39 chuck Exp $
*
* @author Ciprian Popovici
* @package Text_Diff
*/
class Text_Diff_Renderer_inline extends Text_Diff_Renderer {
/**
* Number of leading context "lines" to preserve.
*/
var $_leading_context_lines = 10000;
/**
* Number of trailing context "lines" to preserve.
*/
var $_trailing_context_lines = 10000;
/**
* Prefix for inserted text.
*/
var $_ins_prefix = '<ins>';
/**
* Suffix for inserted text.
*/
var $_ins_suffix = '</ins>';
/**
* Prefix for deleted text.
*/
var $_del_prefix = '<del>';
/**
* Suffix for deleted text.
*/
var $_del_suffix = '</del>';
/**
* Header for each change block.
*/
var $_block_header = '';
/**
* What are we currently splitting on? Used to recurse to show word-level
* changes.
*/
var $_split_level = 'lines';
function _lines($lines, $prefix = ' ')
{
if ($this->_split_level == 'words') {
return implode('', $lines);
} else {
return implode("\n", $lines) . "\n";
}
}
function _blockHeader($xbeg, $xlen, $ybeg, $ylen)
{
return $this->_block_header;
}
function _startBlock($header)
{
return $header;
}
function _added($lines)
{
$lines[0] = $this->_ins_prefix . $lines[0];
$lines[count($lines) - 1] .= $this->_ins_suffix;
return $this->_lines($lines);
}
function _deleted($lines, $words = false)
{
$lines[0] = $this->_del_prefix . $lines[0];
$lines[count($lines) - 1] .= $this->_del_suffix;
return $this->_lines($lines);
}
function _changed($orig, $final)
{
/* If we've already split on words, don't try to do so again - just
* display. */
if ($this->_split_level == 'words') {
$prefix = '';
while (substr($orig[0], 0, 1) == substr($final[0], 0, 1)) {
$prefix .= substr($orig[0], 0, 1);
$orig[0] = substr($orig[0], 1);
$final[0] = substr($final[0], 1);
}
return $prefix . $this->_deleted($orig) . $this->_added($final);
}
$text1 = implode("\n", $orig);
$text2 = implode("\n", $final);
/* Non-printing newline marker. */
$nl = "\0";
/* We want to split on word boundaries, but we need to
* preserve whitespace as well. Therefore we split on words,
* but include all blocks of whitespace in the wordlist. */
$diff = &new Text_Diff($this->_splitOnWords($text1, $nl),
$this->_splitOnWords($text2, $nl));
/* Get the diff in inline format. */
$renderer = &new Text_Diff_Renderer_inline(array_merge($this->getParams(),
array('split_level' => 'words')));
/* Run the diff and get the output. */
return str_replace($nl, "\n", $renderer->render($diff)) . "\n";
}
function _splitOnWords($string, $newlineEscape = "\n")
{
$words = array();
$length = strlen($string);
$pos = 0;
while ($pos < $length) {
// Eat a word with any preceding whitespace.
$spaces = strspn($string, " \n", $pos);
$nextpos = strcspn($string, " \n", $pos + $spaces);
$words[] = str_replace("\n", $newlineEscape, substr($string, $pos, $spaces + $nextpos));
$pos += $spaces + $nextpos;
}
return $words;
}
}
upload/ips_kernel/PEAR/Text/Diff/Renderer/unified.php
+49
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<?php
/**
* "Unified" diff renderer.
*
* This class renders the diff in classic "unified diff" format.
*
* $Horde: framework/Text_Diff/Diff/Renderer/unified.php,v 1.4 2005/03/07 14:58:30 jan Exp $
*
* @package Text_Diff
*/
class Text_Diff_Renderer_unified extends Text_Diff_Renderer {
/**
* Number of leading context "lines" to preserve.
*/
var $_leading_context_lines = 4;
/**
* Number of trailing context "lines" to preserve.
*/
var $_trailing_context_lines = 4;
function _blockHeader($xbeg, $xlen, $ybeg, $ylen)
{
if ($xlen != 1) {
$xbeg .= ',' . $xlen;
}
if ($ylen != 1) {
$ybeg .= ',' . $ylen;
}
return "@@ -$xbeg +$ybeg @@";
}
function _added($lines)
{
return $this->_lines($lines, '+');
}
function _deleted($lines)
{
return $this->_lines($lines, '-');
}
function _changed($orig, $final)
{
return $this->_deleted($orig) . $this->_added($final);
}
}