/home/mip/mip/public/vendor/laravel-filemanager/files/folder-1/821668/diff.zip
PK�@]�ܡ7��LICENSEnu�[���BSD 3-Clause License

Copyright (c) 2002-2024, Sebastian Bergmann
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its
   contributors may be used to endorse or promote products derived from
   this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
PK�@]>��D��*src/LongestCommonSubsequenceCalculator.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff;

interface LongestCommonSubsequenceCalculator
{
    /**
     * Calculates the longest common subsequence of two arrays.
     */
    public function calculate(array $from, array $to): array;
}
PK�@]�F�nnsrc/Parser.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff;

use function array_pop;
use function assert;
use function count;
use function max;
use function preg_match;
use function preg_split;

/**
 * Unified diff parser.
 */
final class Parser
{
    /**
     * @return Diff[]
     */
    public function parse(string $string): array
    {
        $lines = preg_split('(\r\n|\r|\n)', $string);

        if (!empty($lines) && $lines[count($lines) - 1] === '') {
            array_pop($lines);
        }

        $lineCount = count($lines);
        $diffs     = [];
        $diff      = null;
        $collected = [];

        for ($i = 0; $i < $lineCount; $i++) {
            if (preg_match('#^---\h+"?(?P<file>[^\\v\\t"]+)#', $lines[$i], $fromMatch) &&
                preg_match('#^\\+\\+\\+\\h+"?(?P<file>[^\\v\\t"]+)#', $lines[$i + 1], $toMatch)) {
                if ($diff !== null) {
                    $this->parseFileDiff($diff, $collected);

                    $diffs[]   = $diff;
                    $collected = [];
                }

                assert(!empty($fromMatch['file']));
                assert(!empty($toMatch['file']));

                $diff = new Diff($fromMatch['file'], $toMatch['file']);

                $i++;
            } else {
                if (preg_match('/^(?:diff --git |index [\da-f.]+|[+-]{3} [ab])/', $lines[$i])) {
                    continue;
                }

                $collected[] = $lines[$i];
            }
        }

        if ($diff !== null && count($collected)) {
            $this->parseFileDiff($diff, $collected);

            $diffs[] = $diff;
        }

        return $diffs;
    }

    private function parseFileDiff(Diff $diff, array $lines): void
    {
        $chunks    = [];
        $chunk     = null;
        $diffLines = [];

        foreach ($lines as $line) {
            if (preg_match('/^@@\s+-(?P<start>\d+)(?:,\s*(?P<startrange>\d+))?\s+\+(?P<end>\d+)(?:,\s*(?P<endrange>\d+))?\s+@@/', $line, $match, PREG_UNMATCHED_AS_NULL)) {
                $chunk = new Chunk(
                    (int) $match['start'],
                    isset($match['startrange']) ? max(0, (int) $match['startrange']) : 1,
                    (int) $match['end'],
                    isset($match['endrange']) ? max(0, (int) $match['endrange']) : 1,
                );

                $chunks[]  = $chunk;
                $diffLines = [];

                continue;
            }

            if (preg_match('/^(?P<type>[+ -])?(?P<line>.*)/', $line, $match)) {
                $type = Line::UNCHANGED;

                if ($match['type'] === '+') {
                    $type = Line::ADDED;
                } elseif ($match['type'] === '-') {
                    $type = Line::REMOVED;
                }

                $diffLines[] = new Line($type, $match['line']);

                $chunk?->setLines($diffLines);
            }
        }

        $diff->setChunks($chunks);
    }
}
PK�@]����MMsrc/Differ.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff;

use const PHP_INT_SIZE;
use const PREG_SPLIT_DELIM_CAPTURE;
use const PREG_SPLIT_NO_EMPTY;
use function array_shift;
use function array_unshift;
use function array_values;
use function count;
use function current;
use function end;
use function is_string;
use function key;
use function min;
use function preg_split;
use function prev;
use function reset;
use function str_ends_with;
use function substr;
use SebastianBergmann\Diff\Output\DiffOutputBuilderInterface;

final class Differ
{
    public const OLD                     = 0;
    public const ADDED                   = 1;
    public const REMOVED                 = 2;
    public const DIFF_LINE_END_WARNING   = 3;
    public const NO_LINE_END_EOF_WARNING = 4;
    private DiffOutputBuilderInterface $outputBuilder;

    public function __construct(DiffOutputBuilderInterface $outputBuilder)
    {
        $this->outputBuilder = $outputBuilder;
    }

    public function diff(array|string $from, array|string $to, ?LongestCommonSubsequenceCalculator $lcs = null): string
    {
        $diff = $this->diffToArray($from, $to, $lcs);

        return $this->outputBuilder->getDiff($diff);
    }

    public function diffToArray(array|string $from, array|string $to, ?LongestCommonSubsequenceCalculator $lcs = null): array
    {
        if (is_string($from)) {
            $from = $this->splitStringByLines($from);
        }

        if (is_string($to)) {
            $to = $this->splitStringByLines($to);
        }

        [$from, $to, $start, $end] = self::getArrayDiffParted($from, $to);

        if ($lcs === null) {
            $lcs = $this->selectLcsImplementation($from, $to);
        }

        $common = $lcs->calculate(array_values($from), array_values($to));
        $diff   = [];

        foreach ($start as $token) {
            $diff[] = [$token, self::OLD];
        }

        reset($from);
        reset($to);

        foreach ($common as $token) {
            while (($fromToken = reset($from)) !== $token) {
                $diff[] = [array_shift($from), self::REMOVED];
            }

            while (($toToken = reset($to)) !== $token) {
                $diff[] = [array_shift($to), self::ADDED];
            }

            $diff[] = [$token, self::OLD];

            array_shift($from);
            array_shift($to);
        }

        while (($token = array_shift($from)) !== null) {
            $diff[] = [$token, self::REMOVED];
        }

        while (($token = array_shift($to)) !== null) {
            $diff[] = [$token, self::ADDED];
        }

        foreach ($end as $token) {
            $diff[] = [$token, self::OLD];
        }

        if ($this->detectUnmatchedLineEndings($diff)) {
            array_unshift($diff, ["#Warning: Strings contain different line endings!\n", self::DIFF_LINE_END_WARNING]);
        }

        return $diff;
    }

    private function splitStringByLines(string $input): array
    {
        return preg_split('/(.*\R)/', $input, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
    }

    private function selectLcsImplementation(array $from, array $to): LongestCommonSubsequenceCalculator
    {
        // We do not want to use the time-efficient implementation if its memory
        // footprint will probably exceed this value. Note that the footprint
        // calculation is only an estimation for the matrix and the LCS method
        // will typically allocate a bit more memory than this.
        $memoryLimit = 100 * 1024 * 1024;

        if ($this->calculateEstimatedFootprint($from, $to) > $memoryLimit) {
            return new MemoryEfficientLongestCommonSubsequenceCalculator;
        }

        return new TimeEfficientLongestCommonSubsequenceCalculator;
    }

    private function calculateEstimatedFootprint(array $from, array $to): float|int
    {
        $itemSize = PHP_INT_SIZE === 4 ? 76 : 144;

        return $itemSize * min(count($from), count($to)) ** 2;
    }

    private function detectUnmatchedLineEndings(array $diff): bool
    {
        $newLineBreaks = ['' => true];
        $oldLineBreaks = ['' => true];

        foreach ($diff as $entry) {
            if (self::OLD === $entry[1]) {
                $ln                 = $this->getLinebreak($entry[0]);
                $oldLineBreaks[$ln] = true;
                $newLineBreaks[$ln] = true;
            } elseif (self::ADDED === $entry[1]) {
                $newLineBreaks[$this->getLinebreak($entry[0])] = true;
            } elseif (self::REMOVED === $entry[1]) {
                $oldLineBreaks[$this->getLinebreak($entry[0])] = true;
            }
        }

        // if either input or output is a single line without breaks than no warning should be raised
        if (['' => true] === $newLineBreaks || ['' => true] === $oldLineBreaks) {
            return false;
        }

        // two-way compare
        foreach ($newLineBreaks as $break => $set) {
            if (!isset($oldLineBreaks[$break])) {
                return true;
            }
        }

        foreach ($oldLineBreaks as $break => $set) {
            if (!isset($newLineBreaks[$break])) {
                return true;
            }
        }

        return false;
    }

    private function getLinebreak($line): string
    {
        if (!is_string($line)) {
            return '';
        }

        $lc = substr($line, -1);

        if ("\r" === $lc) {
            return "\r";
        }

        if ("\n" !== $lc) {
            return '';
        }

        if (str_ends_with($line, "\r\n")) {
            return "\r\n";
        }

        return "\n";
    }

    private static function getArrayDiffParted(array &$from, array &$to): array
    {
        $start = [];
        $end   = [];

        reset($to);

        foreach ($from as $k => $v) {
            $toK = key($to);

            if ($toK === $k && $v === $to[$k]) {
                $start[$k] = $v;

                unset($from[$k], $to[$k]);
            } else {
                break;
            }
        }

        end($from);
        end($to);

        do {
            $fromK = key($from);
            $toK   = key($to);

            if (null === $fromK || null === $toK || current($from) !== current($to)) {
                break;
            }

            prev($from);
            prev($to);

            $end = [$fromK => $from[$fromK]] + $end;
            unset($from[$fromK], $to[$toK]);
        } while (true);

        return [$from, $to, $start, $end];
    }
}
PK�@]�>�As
s
9src/MemoryEfficientLongestCommonSubsequenceCalculator.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff;

use function array_fill;
use function array_merge;
use function array_reverse;
use function array_slice;
use function count;
use function in_array;
use function max;

final class MemoryEfficientLongestCommonSubsequenceCalculator implements LongestCommonSubsequenceCalculator
{
    /**
     * @inheritDoc
     */
    public function calculate(array $from, array $to): array
    {
        $cFrom = count($from);
        $cTo   = count($to);

        if ($cFrom === 0) {
            return [];
        }

        if ($cFrom === 1) {
            if (in_array($from[0], $to, true)) {
                return [$from[0]];
            }

            return [];
        }

        $i         = (int) ($cFrom / 2);
        $fromStart = array_slice($from, 0, $i);
        $fromEnd   = array_slice($from, $i);
        $llB       = $this->length($fromStart, $to);
        $llE       = $this->length(array_reverse($fromEnd), array_reverse($to));
        $jMax      = 0;
        $max       = 0;

        for ($j = 0; $j <= $cTo; $j++) {
            $m = $llB[$j] + $llE[$cTo - $j];

            if ($m >= $max) {
                $max  = $m;
                $jMax = $j;
            }
        }

        $toStart = array_slice($to, 0, $jMax);
        $toEnd   = array_slice($to, $jMax);

        return array_merge(
            $this->calculate($fromStart, $toStart),
            $this->calculate($fromEnd, $toEnd),
        );
    }

    private function length(array $from, array $to): array
    {
        $current = array_fill(0, count($to) + 1, 0);
        $cFrom   = count($from);
        $cTo     = count($to);

        for ($i = 0; $i < $cFrom; $i++) {
            $prev = $current;

            for ($j = 0; $j < $cTo; $j++) {
                if ($from[$i] === $to[$j]) {
                    $current[$j + 1] = $prev[$j] + 1;
                } else {
                    /**
                     * @noinspection PhpConditionCanBeReplacedWithMinMaxCallInspection
                     *
                     * We do not use max() here to avoid the function call overhead
                     */
                    if ($current[$j] > $prev[$j + 1]) {
                        $current[$j + 1] = $current[$j];
                    } else {
                        $current[$j + 1] = $prev[$j + 1];
                    }
                }
            }
        }

        return $current;
    }
}
PK�@]s�v.WWsrc/Diff.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff;

use ArrayIterator;
use IteratorAggregate;
use Traversable;

/**
 * @template-implements IteratorAggregate<int, Chunk>
 */
final class Diff implements IteratorAggregate
{
    /**
     * @psalm-var non-empty-string
     */
    private string $from;

    /**
     * @psalm-var non-empty-string
     */
    private string $to;

    /**
     * @psalm-var list<Chunk>
     */
    private array $chunks;

    /**
     * @psalm-param non-empty-string $from
     * @psalm-param non-empty-string $to
     * @psalm-param list<Chunk> $chunks
     */
    public function __construct(string $from, string $to, array $chunks = [])
    {
        $this->from   = $from;
        $this->to     = $to;
        $this->chunks = $chunks;
    }

    /**
     * @psalm-return non-empty-string
     */
    public function from(): string
    {
        return $this->from;
    }

    /**
     * @psalm-return non-empty-string
     */
    public function to(): string
    {
        return $this->to;
    }

    /**
     * @psalm-return list<Chunk>
     */
    public function chunks(): array
    {
        return $this->chunks;
    }

    /**
     * @psalm-param list<Chunk> $chunks
     */
    public function setChunks(array $chunks): void
    {
        $this->chunks = $chunks;
    }

    /**
     * @psalm-return non-empty-string
     *
     * @deprecated
     */
    public function getFrom(): string
    {
        return $this->from;
    }

    /**
     * @psalm-return non-empty-string
     *
     * @deprecated
     */
    public function getTo(): string
    {
        return $this->to;
    }

    /**
     * @psalm-return list<Chunk>
     *
     * @deprecated
     */
    public function getChunks(): array
    {
        return $this->chunks;
    }

    public function getIterator(): Traversable
    {
        return new ArrayIterator($this->chunks);
    }
}
PK�@]c��ݶ	�	
src/Chunk.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff;

use ArrayIterator;
use IteratorAggregate;
use Traversable;

/**
 * @template-implements IteratorAggregate<int, Line>
 */
final class Chunk implements IteratorAggregate
{
    private int $start;
    private int $startRange;
    private int $end;
    private int $endRange;
    private array $lines;

    public function __construct(int $start = 0, int $startRange = 1, int $end = 0, int $endRange = 1, array $lines = [])
    {
        $this->start      = $start;
        $this->startRange = $startRange;
        $this->end        = $end;
        $this->endRange   = $endRange;
        $this->lines      = $lines;
    }

    public function start(): int
    {
        return $this->start;
    }

    public function startRange(): int
    {
        return $this->startRange;
    }

    public function end(): int
    {
        return $this->end;
    }

    public function endRange(): int
    {
        return $this->endRange;
    }

    /**
     * @psalm-return list<Line>
     */
    public function lines(): array
    {
        return $this->lines;
    }

    /**
     * @psalm-param list<Line> $lines
     */
    public function setLines(array $lines): void
    {
        foreach ($lines as $line) {
            if (!$line instanceof Line) {
                throw new InvalidArgumentException;
            }
        }

        $this->lines = $lines;
    }

    /**
     * @deprecated Use start() instead
     */
    public function getStart(): int
    {
        return $this->start;
    }

    /**
     * @deprecated Use startRange() instead
     */
    public function getStartRange(): int
    {
        return $this->startRange;
    }

    /**
     * @deprecated Use end() instead
     */
    public function getEnd(): int
    {
        return $this->end;
    }

    /**
     * @deprecated Use endRange() instead
     */
    public function getEndRange(): int
    {
        return $this->endRange;
    }

    /**
     * @psalm-return list<Line>
     *
     * @deprecated Use lines() instead
     */
    public function getLines(): array
    {
        return $this->lines;
    }

    public function getIterator(): Traversable
    {
        return new ArrayIterator($this->lines);
    }
}
PK�@]KU{@	@	7src/TimeEfficientLongestCommonSubsequenceCalculator.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff;

use function array_reverse;
use function count;
use function max;
use SplFixedArray;

final class TimeEfficientLongestCommonSubsequenceCalculator implements LongestCommonSubsequenceCalculator
{
    /**
     * @inheritDoc
     */
    public function calculate(array $from, array $to): array
    {
        $common     = [];
        $fromLength = count($from);
        $toLength   = count($to);
        $width      = $fromLength + 1;
        $matrix     = new SplFixedArray($width * ($toLength + 1));

        for ($i = 0; $i <= $fromLength; $i++) {
            $matrix[$i] = 0;
        }

        for ($j = 0; $j <= $toLength; $j++) {
            $matrix[$j * $width] = 0;
        }

        for ($i = 1; $i <= $fromLength; $i++) {
            for ($j = 1; $j <= $toLength; $j++) {
                $o = ($j * $width) + $i;

                // don't use max() to avoid function call overhead
                $firstOrLast = $from[$i - 1] === $to[$j - 1] ? $matrix[$o - $width - 1] + 1 : 0;

                if ($matrix[$o - 1] > $matrix[$o - $width]) {
                    if ($firstOrLast > $matrix[$o - 1]) {
                        $matrix[$o] = $firstOrLast;
                    } else {
                        $matrix[$o] = $matrix[$o - 1];
                    }
                } else {
                    if ($firstOrLast > $matrix[$o - $width]) {
                        $matrix[$o] = $firstOrLast;
                    } else {
                        $matrix[$o] = $matrix[$o - $width];
                    }
                }
            }
        }

        $i = $fromLength;
        $j = $toLength;

        while ($i > 0 && $j > 0) {
            if ($from[$i - 1] === $to[$j - 1]) {
                $common[] = $from[$i - 1];
                $i--;
                $j--;
            } else {
                $o = ($j * $width) + $i;

                if ($matrix[$o - $width] > $matrix[$o - 1]) {
                    $j--;
                } else {
                    $i--;
                }
            }
        }

        return array_reverse($common);
    }
}
PK�@]�M'11$src/Output/DiffOnlyOutputBuilder.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff\Output;

use function fclose;
use function fopen;
use function fwrite;
use function str_ends_with;
use function stream_get_contents;
use function substr;
use SebastianBergmann\Diff\Differ;

/**
 * Builds a diff string representation in a loose unified diff format
 * listing only changes lines. Does not include line numbers.
 */
final class DiffOnlyOutputBuilder implements DiffOutputBuilderInterface
{
    private string $header;

    public function __construct(string $header = "--- Original\n+++ New\n")
    {
        $this->header = $header;
    }

    public function getDiff(array $diff): string
    {
        $buffer = fopen('php://memory', 'r+b');

        if ('' !== $this->header) {
            fwrite($buffer, $this->header);

            if (!str_ends_with($this->header, "\n")) {
                fwrite($buffer, "\n");
            }
        }

        foreach ($diff as $diffEntry) {
            if ($diffEntry[1] === Differ::ADDED) {
                fwrite($buffer, '+' . $diffEntry[0]);
            } elseif ($diffEntry[1] === Differ::REMOVED) {
                fwrite($buffer, '-' . $diffEntry[0]);
            } elseif ($diffEntry[1] === Differ::DIFF_LINE_END_WARNING) {
                fwrite($buffer, ' ' . $diffEntry[0]);

                continue; // Warnings should not be tested for line break, it will always be there
            } else { /* Not changed (old) 0 */
                continue; // we didn't write the not-changed line, so do not add a line break either
            }

            $lc = substr($diffEntry[0], -1);

            if ($lc !== "\n" && $lc !== "\r") {
                fwrite($buffer, "\n"); // \No newline at end of file
            }
        }

        $diff = stream_get_contents($buffer, -1, 0);
        fclose($buffer);

        return $diff;
    }
}
PK�@]�s� � 'src/Output/UnifiedDiffOutputBuilder.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff\Output;

use function array_splice;
use function count;
use function fclose;
use function fopen;
use function fwrite;
use function max;
use function min;
use function str_ends_with;
use function stream_get_contents;
use function substr;
use SebastianBergmann\Diff\Differ;

/**
 * Builds a diff string representation in unified diff format in chunks.
 */
final class UnifiedDiffOutputBuilder extends AbstractChunkOutputBuilder
{
    private bool $collapseRanges     = true;
    private int $commonLineThreshold = 6;

    /**
     * @psalm-var positive-int
     */
    private int $contextLines = 3;
    private string $header;
    private bool $addLineNumbers;

    public function __construct(string $header = "--- Original\n+++ New\n", bool $addLineNumbers = false)
    {
        $this->header         = $header;
        $this->addLineNumbers = $addLineNumbers;
    }

    public function getDiff(array $diff): string
    {
        $buffer = fopen('php://memory', 'r+b');

        if ('' !== $this->header) {
            fwrite($buffer, $this->header);

            if (!str_ends_with($this->header, "\n")) {
                fwrite($buffer, "\n");
            }
        }

        if (0 !== count($diff)) {
            $this->writeDiffHunks($buffer, $diff);
        }

        $diff = stream_get_contents($buffer, -1, 0);

        fclose($buffer);

        // If the diff is non-empty and last char is not a linebreak: add it.
        // This might happen when both the `from` and `to` do not have a trailing linebreak
        $last = substr($diff, -1);

        return '' !== $diff && "\n" !== $last && "\r" !== $last
            ? $diff . "\n"
            : $diff;
    }

    private function writeDiffHunks($output, array $diff): void
    {
        // detect "No newline at end of file" and insert into `$diff` if needed

        $upperLimit = count($diff);

        if (0 === $diff[$upperLimit - 1][1]) {
            $lc = substr($diff[$upperLimit - 1][0], -1);

            if ("\n" !== $lc) {
                array_splice($diff, $upperLimit, 0, [["\n\\ No newline at end of file\n", Differ::NO_LINE_END_EOF_WARNING]]);
            }
        } else {
            // search back for the last `+` and `-` line,
            // check if it has trailing linebreak, else add a warning under it
            $toFind = [1 => true, 2 => true];

            for ($i = $upperLimit - 1; $i >= 0; $i--) {
                if (isset($toFind[$diff[$i][1]])) {
                    unset($toFind[$diff[$i][1]]);
                    $lc = substr($diff[$i][0], -1);

                    if ("\n" !== $lc) {
                        array_splice($diff, $i + 1, 0, [["\n\\ No newline at end of file\n", Differ::NO_LINE_END_EOF_WARNING]]);
                    }

                    if (!count($toFind)) {
                        break;
                    }
                }
            }
        }

        // write hunks to output buffer

        $cutOff      = max($this->commonLineThreshold, $this->contextLines);
        $hunkCapture = false;
        $sameCount   = $toRange = $fromRange = 0;
        $toStart     = $fromStart = 1;
        $i           = 0;

        /** @var int $i */
        foreach ($diff as $i => $entry) {
            if (0 === $entry[1]) { // same
                if (false === $hunkCapture) {
                    $fromStart++;
                    $toStart++;

                    continue;
                }

                $sameCount++;
                $toRange++;
                $fromRange++;

                if ($sameCount === $cutOff) {
                    $contextStartOffset = ($hunkCapture - $this->contextLines) < 0
                        ? $hunkCapture
                        : $this->contextLines;

                    // note: $contextEndOffset = $this->contextLines;
                    //
                    // because we never go beyond the end of the diff.
                    // with the cutoff/contextlines here the follow is never true;
                    //
                    // if ($i - $cutOff + $this->contextLines + 1 > \count($diff)) {
                    //    $contextEndOffset = count($diff) - 1;
                    // }
                    //
                    // ; that would be true for a trailing incomplete hunk case which is dealt with after this loop

                    $this->writeHunk(
                        $diff,
                        $hunkCapture - $contextStartOffset,
                        $i - $cutOff + $this->contextLines + 1,
                        $fromStart - $contextStartOffset,
                        $fromRange - $cutOff + $contextStartOffset + $this->contextLines,
                        $toStart - $contextStartOffset,
                        $toRange - $cutOff + $contextStartOffset + $this->contextLines,
                        $output,
                    );

                    $fromStart += $fromRange;
                    $toStart   += $toRange;

                    $hunkCapture = false;
                    $sameCount   = $toRange = $fromRange = 0;
                }

                continue;
            }

            $sameCount = 0;

            if ($entry[1] === Differ::NO_LINE_END_EOF_WARNING) {
                continue;
            }

            if (false === $hunkCapture) {
                $hunkCapture = $i;
            }

            if (Differ::ADDED === $entry[1]) {
                $toRange++;
            }

            if (Differ::REMOVED === $entry[1]) {
                $fromRange++;
            }
        }

        if (false === $hunkCapture) {
            return;
        }

        // we end here when cutoff (commonLineThreshold) was not reached, but we were capturing a hunk,
        // do not render hunk till end automatically because the number of context lines might be less than the commonLineThreshold

        $contextStartOffset = $hunkCapture - $this->contextLines < 0
            ? $hunkCapture
            : $this->contextLines;

        // prevent trying to write out more common lines than there are in the diff _and_
        // do not write more than configured through the context lines
        $contextEndOffset = min($sameCount, $this->contextLines);

        $fromRange -= $sameCount;
        $toRange   -= $sameCount;

        $this->writeHunk(
            $diff,
            $hunkCapture - $contextStartOffset,
            $i - $sameCount + $contextEndOffset + 1,
            $fromStart - $contextStartOffset,
            $fromRange + $contextStartOffset + $contextEndOffset,
            $toStart - $contextStartOffset,
            $toRange + $contextStartOffset + $contextEndOffset,
            $output,
        );
    }

    private function writeHunk(
        array $diff,
        int $diffStartIndex,
        int $diffEndIndex,
        int $fromStart,
        int $fromRange,
        int $toStart,
        int $toRange,
        $output
    ): void {
        if ($this->addLineNumbers) {
            fwrite($output, '@@ -' . $fromStart);

            if (!$this->collapseRanges || 1 !== $fromRange) {
                fwrite($output, ',' . $fromRange);
            }

            fwrite($output, ' +' . $toStart);

            if (!$this->collapseRanges || 1 !== $toRange) {
                fwrite($output, ',' . $toRange);
            }

            fwrite($output, " @@\n");
        } else {
            fwrite($output, "@@ @@\n");
        }

        for ($i = $diffStartIndex; $i < $diffEndIndex; $i++) {
            if ($diff[$i][1] === Differ::ADDED) {
                fwrite($output, '+' . $diff[$i][0]);
            } elseif ($diff[$i][1] === Differ::REMOVED) {
                fwrite($output, '-' . $diff[$i][0]);
            } elseif ($diff[$i][1] === Differ::OLD) {
                fwrite($output, ' ' . $diff[$i][0]);
            } elseif ($diff[$i][1] === Differ::NO_LINE_END_EOF_WARNING) {
                fwrite($output, "\n"); // $diff[$i][0]
            } else { /* Not changed (old) Differ::OLD or Warning Differ::DIFF_LINE_END_WARNING */
                fwrite($output, ' ' . $diff[$i][0]);
            }
        }
    }
}
PK�@]K5P�*�*-src/Output/StrictUnifiedDiffOutputBuilder.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff\Output;

use function array_merge;
use function array_splice;
use function count;
use function fclose;
use function fopen;
use function fwrite;
use function is_bool;
use function is_int;
use function is_string;
use function max;
use function min;
use function sprintf;
use function stream_get_contents;
use function substr;
use SebastianBergmann\Diff\ConfigurationException;
use SebastianBergmann\Diff\Differ;

/**
 * Strict Unified diff output builder.
 *
 * Generates (strict) Unified diff's (unidiffs) with hunks.
 */
final class StrictUnifiedDiffOutputBuilder implements DiffOutputBuilderInterface
{
    private static array $default = [
        'collapseRanges'      => true, // ranges of length one are rendered with the trailing `,1`
        'commonLineThreshold' => 6,    // number of same lines before ending a new hunk and creating a new one (if needed)
        'contextLines'        => 3,    // like `diff:  -u, -U NUM, --unified[=NUM]`, for patch/git apply compatibility best to keep at least @ 3
        'fromFile'            => null,
        'fromFileDate'        => null,
        'toFile'              => null,
        'toFileDate'          => null,
    ];
    private bool $changed;
    private bool $collapseRanges;

    /**
     * @psalm-var positive-int
     */
    private int $commonLineThreshold;
    private string $header;

    /**
     * @psalm-var positive-int
     */
    private int $contextLines;

    public function __construct(array $options = [])
    {
        $options = array_merge(self::$default, $options);

        if (!is_bool($options['collapseRanges'])) {
            throw new ConfigurationException('collapseRanges', 'a bool', $options['collapseRanges']);
        }

        if (!is_int($options['contextLines']) || $options['contextLines'] < 0) {
            throw new ConfigurationException('contextLines', 'an int >= 0', $options['contextLines']);
        }

        if (!is_int($options['commonLineThreshold']) || $options['commonLineThreshold'] <= 0) {
            throw new ConfigurationException('commonLineThreshold', 'an int > 0', $options['commonLineThreshold']);
        }

        $this->assertString($options, 'fromFile');
        $this->assertString($options, 'toFile');
        $this->assertStringOrNull($options, 'fromFileDate');
        $this->assertStringOrNull($options, 'toFileDate');

        $this->header = sprintf(
            "--- %s%s\n+++ %s%s\n",
            $options['fromFile'],
            null === $options['fromFileDate'] ? '' : "\t" . $options['fromFileDate'],
            $options['toFile'],
            null === $options['toFileDate'] ? '' : "\t" . $options['toFileDate'],
        );

        $this->collapseRanges      = $options['collapseRanges'];
        $this->commonLineThreshold = $options['commonLineThreshold'];
        $this->contextLines        = $options['contextLines'];
    }

    public function getDiff(array $diff): string
    {
        if (0 === count($diff)) {
            return '';
        }

        $this->changed = false;

        $buffer = fopen('php://memory', 'r+b');
        fwrite($buffer, $this->header);

        $this->writeDiffHunks($buffer, $diff);

        if (!$this->changed) {
            fclose($buffer);

            return '';
        }

        $diff = stream_get_contents($buffer, -1, 0);

        fclose($buffer);

        // If the last char is not a linebreak: add it.
        // This might happen when both the `from` and `to` do not have a trailing linebreak
        $last = substr($diff, -1);

        return "\n" !== $last && "\r" !== $last
            ? $diff . "\n"
            : $diff;
    }

    private function writeDiffHunks($output, array $diff): void
    {
        // detect "No newline at end of file" and insert into `$diff` if needed

        $upperLimit = count($diff);

        if (0 === $diff[$upperLimit - 1][1]) {
            $lc = substr($diff[$upperLimit - 1][0], -1);

            if ("\n" !== $lc) {
                array_splice($diff, $upperLimit, 0, [["\n\\ No newline at end of file\n", Differ::NO_LINE_END_EOF_WARNING]]);
            }
        } else {
            // search back for the last `+` and `-` line,
            // check if it has a trailing linebreak, else add a warning under it
            $toFind = [1 => true, 2 => true];

            for ($i = $upperLimit - 1; $i >= 0; $i--) {
                if (isset($toFind[$diff[$i][1]])) {
                    unset($toFind[$diff[$i][1]]);
                    $lc = substr($diff[$i][0], -1);

                    if ("\n" !== $lc) {
                        array_splice($diff, $i + 1, 0, [["\n\\ No newline at end of file\n", Differ::NO_LINE_END_EOF_WARNING]]);
                    }

                    if (!count($toFind)) {
                        break;
                    }
                }
            }
        }

        // write hunks to output buffer

        $cutOff      = max($this->commonLineThreshold, $this->contextLines);
        $hunkCapture = false;
        $sameCount   = $toRange = $fromRange = 0;
        $toStart     = $fromStart = 1;
        $i           = 0;

        /** @var int $i */
        foreach ($diff as $i => $entry) {
            if (0 === $entry[1]) { // same
                if (false === $hunkCapture) {
                    $fromStart++;
                    $toStart++;

                    continue;
                }

                $sameCount++;
                $toRange++;
                $fromRange++;

                if ($sameCount === $cutOff) {
                    $contextStartOffset = ($hunkCapture - $this->contextLines) < 0
                        ? $hunkCapture
                        : $this->contextLines;

                    // note: $contextEndOffset = $this->contextLines;
                    //
                    // because we never go beyond the end of the diff.
                    // with the cutoff/contextlines here the follow is never true;
                    //
                    // if ($i - $cutOff + $this->contextLines + 1 > \count($diff)) {
                    //    $contextEndOffset = count($diff) - 1;
                    // }
                    //
                    // ; that would be true for a trailing incomplete hunk case which is dealt with after this loop

                    $this->writeHunk(
                        $diff,
                        $hunkCapture - $contextStartOffset,
                        $i - $cutOff + $this->contextLines + 1,
                        $fromStart - $contextStartOffset,
                        $fromRange - $cutOff + $contextStartOffset + $this->contextLines,
                        $toStart - $contextStartOffset,
                        $toRange - $cutOff + $contextStartOffset + $this->contextLines,
                        $output,
                    );

                    $fromStart += $fromRange;
                    $toStart   += $toRange;

                    $hunkCapture = false;
                    $sameCount   = $toRange = $fromRange = 0;
                }

                continue;
            }

            $sameCount = 0;

            if ($entry[1] === Differ::NO_LINE_END_EOF_WARNING) {
                continue;
            }

            $this->changed = true;

            if (false === $hunkCapture) {
                $hunkCapture = $i;
            }

            if (Differ::ADDED === $entry[1]) { // added
                $toRange++;
            }

            if (Differ::REMOVED === $entry[1]) { // removed
                $fromRange++;
            }
        }

        if (false === $hunkCapture) {
            return;
        }

        // we end here when cutoff (commonLineThreshold) was not reached, but we were capturing a hunk,
        // do not render hunk till end automatically because the number of context lines might be less than the commonLineThreshold

        $contextStartOffset = $hunkCapture - $this->contextLines < 0
            ? $hunkCapture
            : $this->contextLines;

        // prevent trying to write out more common lines than there are in the diff _and_
        // do not write more than configured through the context lines
        $contextEndOffset = min($sameCount, $this->contextLines);

        $fromRange -= $sameCount;
        $toRange   -= $sameCount;

        $this->writeHunk(
            $diff,
            $hunkCapture - $contextStartOffset,
            $i - $sameCount + $contextEndOffset + 1,
            $fromStart - $contextStartOffset,
            $fromRange + $contextStartOffset + $contextEndOffset,
            $toStart - $contextStartOffset,
            $toRange + $contextStartOffset + $contextEndOffset,
            $output,
        );
    }

    private function writeHunk(
        array $diff,
        int $diffStartIndex,
        int $diffEndIndex,
        int $fromStart,
        int $fromRange,
        int $toStart,
        int $toRange,
        $output
    ): void {
        fwrite($output, '@@ -' . $fromStart);

        if (!$this->collapseRanges || 1 !== $fromRange) {
            fwrite($output, ',' . $fromRange);
        }

        fwrite($output, ' +' . $toStart);

        if (!$this->collapseRanges || 1 !== $toRange) {
            fwrite($output, ',' . $toRange);
        }

        fwrite($output, " @@\n");

        for ($i = $diffStartIndex; $i < $diffEndIndex; $i++) {
            if ($diff[$i][1] === Differ::ADDED) {
                $this->changed = true;
                fwrite($output, '+' . $diff[$i][0]);
            } elseif ($diff[$i][1] === Differ::REMOVED) {
                $this->changed = true;
                fwrite($output, '-' . $diff[$i][0]);
            } elseif ($diff[$i][1] === Differ::OLD) {
                fwrite($output, ' ' . $diff[$i][0]);
            } elseif ($diff[$i][1] === Differ::NO_LINE_END_EOF_WARNING) {
                $this->changed = true;
                fwrite($output, $diff[$i][0]);
            }
            // } elseif ($diff[$i][1] === Differ::DIFF_LINE_END_WARNING) { // custom comment inserted by PHPUnit/diff package
            //  skip
            // } else {
            //  unknown/invalid
            // }
        }
    }

    private function assertString(array $options, string $option): void
    {
        if (!is_string($options[$option])) {
            throw new ConfigurationException($option, 'a string', $options[$option]);
        }
    }

    private function assertStringOrNull(array $options, string $option): void
    {
        if (null !== $options[$option] && !is_string($options[$option])) {
            throw new ConfigurationException($option, 'a string or <null>', $options[$option]);
        }
    }
}
PK�@]��0�		)src/Output/DiffOutputBuilderInterface.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff\Output;

/**
 * Defines how an output builder should take a generated
 * diff array and return a string representation of that diff.
 */
interface DiffOutputBuilderInterface
{
    public function getDiff(array $diff): string;
}
PK�@]��w�)src/Output/AbstractChunkOutputBuilder.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff\Output;

use function count;

abstract class AbstractChunkOutputBuilder implements DiffOutputBuilderInterface
{
    /**
     * Takes input of the diff array and returns the common parts.
     * Iterates through diff line by line.
     */
    protected function getCommonChunks(array $diff, int $lineThreshold = 5): array
    {
        $diffSize     = count($diff);
        $capturing    = false;
        $chunkStart   = 0;
        $chunkSize    = 0;
        $commonChunks = [];

        for ($i = 0; $i < $diffSize; $i++) {
            if ($diff[$i][1] === 0 /* OLD */) {
                if ($capturing === false) {
                    $capturing  = true;
                    $chunkStart = $i;
                    $chunkSize  = 0;
                } else {
                    $chunkSize++;
                }
            } elseif ($capturing !== false) {
                if ($chunkSize >= $lineThreshold) {
                    $commonChunks[$chunkStart] = $chunkStart + $chunkSize;
                }

                $capturing = false;
            }
        }

        if ($capturing !== false && $chunkSize >= $lineThreshold) {
            $commonChunks[$chunkStart] = $chunkStart + $chunkSize;
        }

        return $commonChunks;
    }
}
PK�@]�Rsrc/Line.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff;

final class Line
{
    public const ADDED     = 1;
    public const REMOVED   = 2;
    public const UNCHANGED = 3;
    private int $type;
    private string $content;

    public function __construct(int $type = self::UNCHANGED, string $content = '')
    {
        $this->type    = $type;
        $this->content = $content;
    }

    public function content(): string
    {
        return $this->content;
    }

    public function type(): int
    {
        return $this->type;
    }

    public function isAdded(): bool
    {
        return $this->type === self::ADDED;
    }

    public function isRemoved(): bool
    {
        return $this->type === self::REMOVED;
    }

    public function isUnchanged(): bool
    {
        return $this->type === self::UNCHANGED;
    }

    /**
     * @deprecated
     */
    public function getContent(): string
    {
        return $this->content;
    }

    /**
     * @deprecated
     */
    public function getType(): int
    {
        return $this->type;
    }
}
PK�@]L}f��*src/Exception/InvalidArgumentException.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff;

class InvalidArgumentException extends \InvalidArgumentException implements Exception
{
}
PK�@]�>faasrc/Exception/Exception.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff;

use Throwable;

interface Exception extends Throwable
{
}
PK�@]�)���(src/Exception/ConfigurationException.phpnu�[���<?php declare(strict_types=1);
/*
 * This file is part of sebastian/diff.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Diff;

use function gettype;
use function is_object;
use function sprintf;
use Exception;

final class ConfigurationException extends InvalidArgumentException
{
    public function __construct(
        string $option,
        string $expected,
        $value,
        int $code = 0,
        ?Exception $previous = null
    ) {
        parent::__construct(
            sprintf(
                'Option "%s" must be %s, got "%s".',
                $option,
                $expected,
                is_object($value) ? $value::class : (null === $value ? '<null>' : gettype($value) . '#' . $value),
            ),
            $code,
            $previous,
        );
    }
}
PK�@]KJ�uuSECURITY.mdnu�[���# Security Policy

If you believe you have found a security vulnerability in the library that is developed in this repository, please report it to us through coordinated disclosure.

**Please do not report security vulnerabilities through public GitHub issues, discussions, or pull requests.**

Instead, please email `sebastian@phpunit.de`.

Please include as much of the information listed below as you can to help us better understand and resolve the issue:

* The type of issue
* Full paths of source file(s) related to the manifestation of the issue
* The location of the affected source code (tag/branch/commit or direct URL)
* Any special configuration required to reproduce the issue
* Step-by-step instructions to reproduce the issue
* Proof-of-concept or exploit code (if possible)
* Impact of the issue, including how an attacker might exploit the issue

This information will help us triage your report more quickly.

## Web Context

The library that is developed in this repository was either extracted from [PHPUnit](https://github.com/sebastianbergmann/phpunit) or developed specifically as a dependency for PHPUnit.

The library is developed with a focus on development environments and the command-line. No specific testing or hardening with regard to using the library in an HTTP or web context or with untrusted input data is performed. The library might also contain functionality that intentionally exposes internal application data for debugging purposes.

If the library is used in a web application, the application developer is responsible for filtering inputs or escaping outputs as necessary and for verifying that the used functionality is safe for use within the intended context.

Vulnerabilities specific to the use outside a development context will be fixed as applicable, provided that the fix does not have an averse effect on the primary use case for development purposes.

PK�@]�Y���
composer.jsonnu�[���{
    "name": "sebastian/diff",
    "description": "Diff implementation",
    "keywords": ["diff", "udiff", "unidiff", "unified diff"],
    "homepage": "https://github.com/sebastianbergmann/diff",
    "license": "BSD-3-Clause",
    "authors": [
        {
            "name": "Sebastian Bergmann",
            "email": "sebastian@phpunit.de"
        },
        {
            "name": "Kore Nordmann",
            "email": "mail@kore-nordmann.de"
        }
    ],
    "support": {
        "issues": "https://github.com/sebastianbergmann/diff/issues",
        "security": "https://github.com/sebastianbergmann/diff/security/policy"
    },
    "prefer-stable": true,
    "config": {
        "platform": {
            "php": "8.1.0"
        },
        "optimize-autoloader": true,
        "sort-packages": true
    },
    "require": {
        "php": ">=8.1"
    },
    "require-dev": {
        "phpunit/phpunit": "^10.0",
        "symfony/process": "^6.4"
    },
    "autoload": {
        "classmap": [
            "src/"
        ]
    },
    "autoload-dev": {
        "classmap": [
            "tests/"
        ]
    },
    "extra": {
        "branch-alias": {
            "dev-main": "5.1-dev"
        }
    }
}
PK�@]�Zx x 	README.mdnu�[���[![Latest Stable Version](https://poser.pugx.org/sebastian/diff/v/stable.png)](https://packagist.org/packages/sebastian/diff)
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# sebastian/diff

Diff implementation for PHP, factored out of PHPUnit into a stand-alone component.

## Installation

You can add this library as a local, per-project dependency to your project using [Composer](https://getcomposer.org/):

```
composer require sebastian/diff
```

If you only need this library during development, for instance to run your project's test suite, then you should add it as a development-time dependency:

```
composer require --dev sebastian/diff
```

### Usage

#### Generating diff

The `Differ` class can be used to generate a textual representation of the difference between two strings:

```php
<?php
use SebastianBergmann\Diff\Differ;

$differ = new Differ;
print $differ->diff('foo', 'bar');
```

The code above yields the output below:
```diff
--- Original
+++ New
@@ @@
-foo
+bar
```

There are three output builders available in this package:

#### UnifiedDiffOutputBuilder

This is default builder, which generates the output close to udiff and is used by PHPUnit.

```php
<?php

use SebastianBergmann\Diff\Differ;
use SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder;

$builder = new UnifiedDiffOutputBuilder(
    "--- Original\n+++ New\n", // custom header
    false                      // do not add line numbers to the diff 
);

$differ = new Differ($builder);
print $differ->diff('foo', 'bar');
```

#### StrictUnifiedDiffOutputBuilder

Generates (strict) Unified diff's (unidiffs) with hunks,
similar to `diff -u` and compatible with `patch` and `git apply`.

```php
<?php

use SebastianBergmann\Diff\Differ;
use SebastianBergmann\Diff\Output\StrictUnifiedDiffOutputBuilder;

$builder = new StrictUnifiedDiffOutputBuilder([
    'collapseRanges'      => true, // ranges of length one are rendered with the trailing `,1`
    'commonLineThreshold' => 6,    // number of same lines before ending a new hunk and creating a new one (if needed)
    'contextLines'        => 3,    // like `diff:  -u, -U NUM, --unified[=NUM]`, for patch/git apply compatibility best to keep at least @ 3
    'fromFile'            => '',
    'fromFileDate'        => null,
    'toFile'              => '',
    'toFileDate'          => null,
]);

$differ = new Differ($builder);
print $differ->diff('foo', 'bar');
```

#### DiffOnlyOutputBuilder

Output only the lines that differ.

```php
<?php

use SebastianBergmann\Diff\Differ;
use SebastianBergmann\Diff\Output\DiffOnlyOutputBuilder;

$builder = new DiffOnlyOutputBuilder(
    "--- Original\n+++ New\n"
);

$differ = new Differ($builder);
print $differ->diff('foo', 'bar');
```

#### DiffOutputBuilderInterface

You can pass any output builder to the `Differ` class as longs as it implements the `DiffOutputBuilderInterface`.

#### Parsing diff

The `Parser` class can be used to parse a unified diff into an object graph:

```php
use SebastianBergmann\Diff\Parser;
use SebastianBergmann\Git;

$git = new Git('/usr/local/src/money');

$diff = $git->getDiff(
  '948a1a07768d8edd10dcefa8315c1cbeffb31833',
  'c07a373d2399f3e686234c4f7f088d635eb9641b'
);

$parser = new Parser;

print_r($parser->parse($diff));
```

The code above yields the output below:

    Array
    (
        [0] => SebastianBergmann\Diff\Diff Object
            (
                [from:SebastianBergmann\Diff\Diff:private] => a/tests/MoneyTest.php
                [to:SebastianBergmann\Diff\Diff:private] => b/tests/MoneyTest.php
                [chunks:SebastianBergmann\Diff\Diff:private] => Array
                    (
                        [0] => SebastianBergmann\Diff\Chunk Object
                            (
                                [start:SebastianBergmann\Diff\Chunk:private] => 87
                                [startRange:SebastianBergmann\Diff\Chunk:private] => 7
                                [end:SebastianBergmann\Diff\Chunk:private] => 87
                                [endRange:SebastianBergmann\Diff\Chunk:private] => 7
                                [lines:SebastianBergmann\Diff\Chunk:private] => Array
                                    (
                                        [0] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 3
                                                [content:SebastianBergmann\Diff\Line:private] =>      * @covers SebastianBergmann\Money\Money::add
                                            )

                                        [1] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 3
                                                [content:SebastianBergmann\Diff\Line:private] =>      * @covers SebastianBergmann\Money\Money::newMoney
                                            )

                                        [2] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 3
                                                [content:SebastianBergmann\Diff\Line:private] =>      */
                                            )

                                        [3] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 2
                                                [content:SebastianBergmann\Diff\Line:private] =>     public function testAnotherMoneyWithSameCurrencyObjectCanBeAdded()
                                            )

                                        [4] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 1
                                                [content:SebastianBergmann\Diff\Line:private] =>     public function testAnotherMoneyObjectWithSameCurrencyCanBeAdded()
                                            )

                                        [5] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 3
                                                [content:SebastianBergmann\Diff\Line:private] =>     {
                                            )

                                        [6] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 3
                                                [content:SebastianBergmann\Diff\Line:private] =>         $a = new Money(1, new Currency('EUR'));
                                            )

                                        [7] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 3
                                                [content:SebastianBergmann\Diff\Line:private] =>         $b = new Money(2, new Currency('EUR'));
                                            )
                                    )
                            )
                    )
            )
    )

Note: If the chunk size is 0 lines, i.e., `getStartRange()` or `getEndRange()` return 0, the number of line returned by `getStart()` or `getEnd()` is one lower than one would expect. It is the line number after which the chunk should be inserted or deleted; in all other cases, it gives the first line number of the replaced range of lines.
PK�@]��AChangeLog.mdnu�[���# ChangeLog

All notable changes are documented in this file using the [Keep a CHANGELOG](http://keepachangelog.com/) principles.

## [5.1.1] - 2024-03-02

### Changed

* Do not use implicitly nullable parameters

## [5.1.0] - 2023-12-22

### Added

* `SebastianBergmann\Diff\Chunk::start()`, `SebastianBergmann\Diff\Chunk::startRange()`, `SebastianBergmann\Diff\Chunk::end()`, `SebastianBergmann\Diff\Chunk::endRange()`, and `SebastianBergmann\Diff\Chunk::lines()`
* `SebastianBergmann\Diff\Diff::from()`, `SebastianBergmann\Diff\Diff::to()`, and `SebastianBergmann\Diff\Diff::chunks()`
* `SebastianBergmann\Diff\Line::content()` and `SebastianBergmann\Diff\Diff::type()`
* `SebastianBergmann\Diff\Line::isAdded()`,`SebastianBergmann\Diff\Line::isRemoved()`, and `SebastianBergmann\Diff\Line::isUnchanged()`

### Changed

* `SebastianBergmann\Diff\Diff` now implements `IteratorAggregate`, iterating over it yields the aggregated `SebastianBergmann\Diff\Chunk` objects
* `SebastianBergmann\Diff\Chunk` now implements `IteratorAggregate`, iterating over it yields the aggregated `SebastianBergmann\Diff\Line` objects

### Deprecated

* `SebastianBergmann\Diff\Chunk::getStart()`, `SebastianBergmann\Diff\Chunk::getStartRange()`, `SebastianBergmann\Diff\Chunk::getEnd()`, `SebastianBergmann\Diff\Chunk::getEndRange()`, and `SebastianBergmann\Diff\Chunk::getLines()`
* `SebastianBergmann\Diff\Diff::getFrom()`, `SebastianBergmann\Diff\Diff::getTo()`, and `SebastianBergmann\Diff\Diff::getChunks()`
* `SebastianBergmann\Diff\Line::getContent()` and `SebastianBergmann\Diff\Diff::getType()`

## [5.0.3] - 2023-05-01

### Changed

* [#119](https://github.com/sebastianbergmann/diff/pull/119): Improve performance of `TimeEfficientLongestCommonSubsequenceCalculator`

## [5.0.2] - 2023-05-01

### Changed

* [#118](https://github.com/sebastianbergmann/diff/pull/118): Improve performance of `MemoryEfficientLongestCommonSubsequenceCalculator`

## [5.0.1] - 2023-03-23

### Fixed

* [#115](https://github.com/sebastianbergmann/diff/pull/115): `Parser::parseFileDiff()` does not handle diffs correctly that only add lines or only remove lines

## [5.0.0] - 2023-02-03

### Changed

* Passing a `DiffOutputBuilderInterface` instance to `Differ::__construct()` is no longer optional

### Removed

* Removed support for PHP 7.3, PHP 7.4, and PHP 8.0

## [4.0.4] - 2020-10-26

### Fixed

* `SebastianBergmann\Diff\Exception` now correctly extends `\Throwable`

## [4.0.3] - 2020-09-28

### Changed

* Changed PHP version constraint in `composer.json` from `^7.3 || ^8.0` to `>=7.3`

## [4.0.2] - 2020-06-30

### Added

* This component is now supported on PHP 8

## [4.0.1] - 2020-05-08

### Fixed

* [#99](https://github.com/sebastianbergmann/diff/pull/99): Regression in unified diff output of identical strings

## [4.0.0] - 2020-02-07

### Removed

* Removed support for PHP 7.1 and PHP 7.2

## [3.0.2] - 2019-02-04

### Changed

* `Chunk::setLines()` now ensures that the `$lines` array only contains `Line` objects

## [3.0.1] - 2018-06-10

### Fixed

* Removed `"minimum-stability": "dev",` from `composer.json`

## [3.0.0] - 2018-02-01

* The `StrictUnifiedDiffOutputBuilder` implementation of the `DiffOutputBuilderInterface` was added

### Changed

* The default `DiffOutputBuilderInterface` implementation now generates context lines (unchanged lines)

### Removed

* Removed support for PHP 7.0

### Fixed

* [#70](https://github.com/sebastianbergmann/diff/issues/70): Diffing of arrays no longer works

## [2.0.1] - 2017-08-03

### Fixed

* [#66](https://github.com/sebastianbergmann/diff/pull/66): Restored backwards compatibility for PHPUnit 6.1.4, 6.2.0, 6.2.1, 6.2.2, and 6.2.3

## [2.0.0] - 2017-07-11 [YANKED]

### Added

* [#64](https://github.com/sebastianbergmann/diff/pull/64): Show line numbers for chunks of a diff

### Removed

* This component is no longer supported on PHP 5.6

[5.1.1]: https://github.com/sebastianbergmann/diff/compare/5.1.0...5.1.1
[5.1.0]: https://github.com/sebastianbergmann/diff/compare/5.0.3...5.1.0
[5.0.3]: https://github.com/sebastianbergmann/diff/compare/5.0.2...5.0.3
[5.0.2]: https://github.com/sebastianbergmann/diff/compare/5.0.1...5.0.2
[5.0.1]: https://github.com/sebastianbergmann/diff/compare/5.0.0...5.0.1
[5.0.0]: https://github.com/sebastianbergmann/diff/compare/4.0.4...5.0.0
[4.0.4]: https://github.com/sebastianbergmann/diff/compare/4.0.3...4.0.4
[4.0.3]: https://github.com/sebastianbergmann/diff/compare/4.0.2...4.0.3
[4.0.2]: https://github.com/sebastianbergmann/diff/compare/4.0.1...4.0.2
[4.0.1]: https://github.com/sebastianbergmann/diff/compare/4.0.0...4.0.1
[4.0.0]: https://github.com/sebastianbergmann/diff/compare/3.0.2...4.0.0
[3.0.2]: https://github.com/sebastianbergmann/diff/compare/3.0.1...3.0.2
[3.0.1]: https://github.com/sebastianbergmann/diff/compare/3.0.0...3.0.1
[3.0.0]: https://github.com/sebastianbergmann/diff/compare/2.0...3.0.0
[2.0.1]: https://github.com/sebastianbergmann/diff/compare/c341c98ce083db77f896a0aa64f5ee7652915970...2.0.1
[2.0.0]: https://github.com/sebastianbergmann/diff/compare/1.4...c341c98ce083db77f896a0aa64f5ee7652915970
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