first version

This commit is contained in:
Bastian Allgeier
2019-01-13 23:17:34 +01:00
commit 01277f79f2
595 changed files with 82913 additions and 0 deletions

124
kirby/src/Data/Data.php Executable file
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<?php
namespace Kirby\Data;
use Exception;
use Kirby\Toolkit\F;
/**
* Universal Data writer and reader class.
*
* The read and write methods automatically
* detect, which data handler to use in order
* to correctly encode and decode passed data.
*
* Data Handlers for the class can be
* extended and customized.
*
* @package Kirby
* @author Bastian Allgeier <bastian@getkirby.com>
* @link http://getkirby.com
* @copyright 2012 Bastian Allgeier
* @license MIT
*/
class Data
{
/**
* Handler Type Aliases
*
* @var array
*/
public static $aliases = [
'yml' => 'yaml',
'md' => 'txt',
'mdown' => 'txt'
];
/**
* All registered handlers
*
* @var array
*/
public static $handlers = [
'json' => 'Kirby\Data\Json',
'yaml' => 'Kirby\Data\Yaml',
'txt' => 'Kirby\Data\Txt'
];
/**
* Handler getter
*
* @param string $type
* @return Handler|null
*/
public static function handler(string $type)
{
// normalize the type
$type = strtolower($type);
$handler = static::$handlers[$type] ?? null;
if ($handler === null && isset(static::$aliases[$type]) === true) {
$handler = static::$handlers[static::$aliases[$type]] ?? null;
}
if ($handler === null) {
throw new Exception('Missing Handler for type: "' . $type . '"');
}
return new $handler;
}
/**
* Decode data with the specified handler
*
* @param string $data
* @param string $type
* @return array
*/
public static function decode(string $data = null, string $type): array
{
return static::handler($type)->decode($data);
}
/**
* Encode data with the specified handler
*
* @param array $data
* @param string $type
* @return string
*/
public static function encode(array $data = null, string $type): string
{
return static::handler($type)->encode($data);
}
/**
* Reads data from a file
* The data handler is automatically chosen by
* the extension if not specified.
*
* @param string $file
* @param string $type
* @return array
*/
public static function read(string $file, string $type = null): array
{
return static::handler($type ?? F::extension($file))->read($file);
}
/**
* Writes data to a file.
* The data handler is automatically chosen by
* the extension if not specified.
*
* @param string $file
* @param array $data
* @param string $type
* @return boolean
*/
public static function write(string $file = null, array $data = [], string $type = null): bool
{
return static::handler($type ?? F::extension($file))->write($file, $data);
}
}

67
kirby/src/Data/Handler.php Executable file
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<?php
namespace Kirby\Data;
use Exception;
use Kirby\Toolkit\F;
/**
* Base handler abstract,
* which needs to be extended to
* create valid data handlers
*
* @package Kirby Data
* @author Bastian Allgeier <bastian@getkirby.com>
* @link http://getkirby.com
* @copyright Bastian Allgeier
* @license MIT
*/
abstract class Handler
{
/**
* Parses an encoded string and returns a multi-dimensional array
*
* Needs to throw an Exception if the file can't be parsed.
*
* @param string $string
* @return array
*/
abstract public static function decode($string): array;
/**
* Converts an array to an encoded string
*
* @param array $data
* @return string
*/
abstract public static function encode(array $data): string;
/**
* Reads data from a file
*
* @param string $file
* @return array
*/
public static function read(string $file): array
{
if (file_exists($file) !== true) {
throw new Exception('The file "' . $file . '" does not exist');
}
return static::decode(F::read($file));
}
/**
* Writes data to a file.
* The data handler is automatically chosen by
* the extension if not specified.
*
* @param array $data
* @return boolean
*/
public static function write(string $file = null, array $data = []): bool
{
return F::write($file, static::encode($data));
}
}

45
kirby/src/Data/Json.php Executable file
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<?php
namespace Kirby\Data;
use Exception;
/**
* Simple Wrapper around json_encode and json_decode
*
* @package Kirby Data
* @author Bastian Allgeier <bastian@getkirby.com>
* @link http://getkirby.com
* @copyright Bastian Allgeier
* @license MIT
*/
class Json extends Handler
{
/**
* Converts an array to an encoded JSON string
*
* @param array $data
* @return string
*/
public static function encode(array $data): string
{
return json_encode($data);
}
/**
* Parses an encoded JSON string and returns a multi-dimensional array
*
* @param string $string
* @return array
*/
public static function decode($json): array
{
$result = json_decode($json, true);
if (is_array($result) === true) {
return $result;
} else {
throw new Exception('JSON string is invalid');
}
}
}

112
kirby/src/Data/Txt.php Executable file
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<?php
namespace Kirby\Data;
use Kirby\Toolkit\Str;
/**
* Kirby Txt Data Handler
*
* @package Kirby Data
* @author Bastian Allgeier <bastian@getkirby.com>
* @link http://getkirby.com
* @copyright Bastian Allgeier
* @license MIT
*/
class Txt extends Handler
{
/**
* Converts an array to an encoded Kirby txt string
*
* @param array $data
* @return string
*/
public static function encode(array $data): string
{
$result = [];
foreach ($data as $key => $value) {
if (empty($key) === true || $value === null) {
continue;
}
$key = Str::ucfirst(Str::slug($key));
$value = static::encodeValue($value);
$result[$key] = static::encodeResult($key, $value);
}
return implode("\n\n----\n\n", $result);
}
/**
* Helper for converting value
*
* @param array|string $value
* @return string
*/
protected static function encodeValue($value): string
{
// avoid problems with arrays
if (is_array($value) === true) {
$value = Yaml::encode($value);
}
// escape accidental dividers within a field
$value = preg_replace('!(\n|^)----(.*?\R*)!', '$1\\----$2', $value);
return $value;
}
/**
* Helper for converting key and value to result string
*
* @param string $key
* @param string $value
* @return string
*/
protected static function encodeResult(string $key, string $value): string
{
$result = $key . ': ';
// multi-line content
if (preg_match('!\R!', $value) === 1) {
$result .= "\n\n";
}
$result .= trim($value);
return $result;
}
/**
* Parses a Kirby txt string and returns a multi-dimensional array
*
* @param string $string
* @return array
*/
public static function decode($string): array
{
// remove BOM
$string = str_replace("\xEF\xBB\xBF", '', $string);
// explode all fields by the line separator
$fields = preg_split('!\n----\s*\n*!', $string);
// start the data array
$data = [];
// loop through all fields and add them to the content
foreach ($fields as $field) {
$pos = strpos($field, ':');
$key = str_replace(['-', ' '], '_', strtolower(trim(substr($field, 0, $pos))));
// Don't add fields with empty keys
if (empty($key) === true) {
continue;
}
$data[$key] = trim(substr($field, $pos + 1));
}
return $data;
}
}

56
kirby/src/Data/Yaml.php Executable file
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<?php
namespace Kirby\Data;
use Exception;
use Spyc;
/**
* Simple Wrapper around Symfony's Yaml Component
*
* @package Kirby Data
* @author Bastian Allgeier <bastian@getkirby.com>
* @link http://getkirby.com
* @copyright Bastian Allgeier
* @license MIT
*/
class Yaml extends Handler
{
/**
* Converts an array to an encoded YAML string
*
* @param array $data
* @return string
*/
public static function encode(array $data): string
{
// $data, $indent, $wordwrap, $no_opening_dashes
return Spyc::YAMLDump($data, false, false, true);
}
/**
* Parses an encoded YAML string and returns a multi-dimensional array
*
* @param string $string
* @return array
*/
public static function decode($yaml): array
{
if ($yaml === null) {
return [];
}
if (is_array($yaml) === true) {
return $yaml;
}
$result = Spyc::YAMLLoadString($yaml);
if (is_array($result)) {
return $result;
} else {
throw new Exception('YAML string is invalid');
}
}
}