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<?php
/**
* File containing the ezcConsoleOutput class.
*
* @package ConsoleTools
* @version 1.6.1
* @copyright Copyright (C) 2005-2010 eZ Systems AS. All rights reserved.
* @license http://ez.no/licenses/new_bsd New BSD License
* @filesource
*/
/**
* Class for handling console output.
*
* The ezcConsoleOutput class provides an interface to output text to the console. It deals with formating
* text in different ways and offers some comfortable options to deal
* with console text output.
*
* <code>
* // Create the output handler
* $out = new ezcConsoleOutput();
*
* // Set the verbosity to level 10
* $out->options->verbosityLevel = 10;
* // Enable auto wrapping of lines after 40 characters
* $out->options->autobreak = 40;
*
* // Set the color of the default output format to green
* $out->formats->default->color = 'green';
*
* // Set the color of the output format named 'success' to white
* $out->formats->success->color = 'white';
* // Set the style of the output format named 'success' to bold
* $out->formats->success->style = array( 'bold' );
*
* // Set the color of the output format named 'failure' to red
* $out->formats->failure->color = 'red';
* // Set the style of the output format named 'failure' to bold
* $out->formats->failure->style = array( 'bold' );
* // Set the background color of the output format named 'failure' to blue
* $out->formats->failure->bgcolor = 'blue';
*
* // Output text with default format
* $out->outputText( 'This is default text ' );
* // Output text with format 'success'
* $out->outputText( 'including success message', 'success' );
* // Some more output with default output.
* $out->outputText( "and a manual linebreak.\n" );
*
* // Manipulate the later output
* $out->formats->success->color = 'green';
* $out->formats->default->color = 'blue';
*
* // This is visible, since we set verbosityLevel to 10, and printed in default format (now blue)
* $out->outputText( "Some verbose output.\n", null, 10 );
* // This is not visible, since we set verbosityLevel to 10
* $out->outputText( "Some more verbose output.\n", null, 20 );
* // This is visible, since we set verbosityLevel to 10, and printed in format 'failure'
* $out->outputText( "And some not so verbose, failure output.\n", 'failure', 5 );
* </code>
*
* For a list of valid colors, style attributes and background colors, please
* refer to {@link ezcConsoleOutputFormat}.
*
* ATTENTION: Windows operating systems do not support styling of text on the
* console. Therefore no styling sequences are generated on any version of
* this operating system.
*
* @property ezcConsoleOutputOptions $options
* Contains the options for this class.
* @property ezcConsoleOutputFormats $formats
* Contains the output formats.
*
* @package ConsoleTools
* @version 1.6.1
* @mainclass
*/
class ezcConsoleOutput
{
/**
* Target to print to standard out, with output buffering possibility.
*/
const TARGET_OUTPUT = "php://output";
/**
* Target to print to standard out.
*/
const TARGET_STDOUT = "php://stdout";
/**
* Target to print to standard error.
*/
const TARGET_STDERR = "php://stderr";
/**
* Container to hold the properties
*
* @var array(string=>mixed)
*/
protected $properties;
/**
* Whether a position has been stored before, using the storePos() method.
*
* @see ezcConsoleOutput::storePos()
* @var bool
*/
protected $positionStored = false;
/**
* Stores the mapping of color names to their escape
* sequence values.
*
* @var array(string=>int)
*/
protected static $color = array(
'gray' => 30,
'black' => 30, // Alias black to gray (Bug #8478)
'red' => 31,
'green' => 32,
'yellow' => 33,
'blue' => 34,
'magenta' => 35,
'cyan' => 36,
'white' => 37,
'default' => 39
);
/**
* Stores the mapping of bgcolor names to their escape
* sequence values.
*
* @var array(string=>int)
*/
protected static $bgcolor = array(
'gray' => 40, // Alias gray to black (Bug #8478)
'black' => 40,
'red' => 41,
'green' => 42,
'yellow' => 43,
'blue' => 44,
'magenta' => 45,
'cyan' => 46,
'white' => 47,
'default' => 49,
);
/**
* Stores the mapping of styles names to their escape
* sequence values.
*
* @var array(string=>int)
*/
protected static $style = array(
'default' => '0',
'bold' => 1,
'faint' => 2,
'normal' => 22,
'italic' => 3,
'notitalic' => 23,
'underlined' => 4,
'doubleunderlined' => 21,
'notunderlined' => 24,
'blink' => 5,
'blinkfast' => 6,
'noblink' => 25,
'negative' => 7,
'positive' => 27,
);
/**
* Basic escape sequence string. Use sprintf() to insert escape codes.
*
* @var string
*/
private $escapeSequence = "\033[%sm";
/**
* Collection of targets to print to.
*
* @var array
*/
private $targets = array();
/**
* Create a new console output handler.
*
* @see ezcConsoleOutput::$options
* @see ezcConsoleOutputOptions
* @see ezcConsoleOutput::$formats
* @see ezcConsoleOutputFormats
*
* @param ezcConsoleOutputFormats $formats Formats to be used for output.
* @param array(string=>string) $options Options to set.
*/
public function __construct( ezcConsoleOutputFormats $formats = null, array $options = array() )
{
$options = isset( $options ) ? $options : new ezcConsoleOutputOptions();
$formats = isset( $formats ) ? $formats : new ezcConsoleOutputFormats();
$this->properties['options'] = new ezcConsoleOutputOptions( $options );
$this->properties['formats'] = $formats;
}
/**
* Set new options.
* This method allows you to change the options of an output handler.
*
* @param ezcConsoleOutputOptions $options The options to set.
*
* @throws ezcBaseSettingNotFoundException
* If you tried to set a non-existent option value.
* @throws ezcBaseSettingValueException
* If the value is not valid for the desired option.
* @throws ezcBaseValueException
* If you submit neither an array nor an instance of
* ezcConsoleOutputOptions.
*/
public function setOptions( $options )
{
if ( is_array( $options ) )
{
$this->properties['options']->merge( $options );
}
else if ( $options instanceof ezcConsoleOutputOptions )
{
$this->properties['options'] = $options;
}
else
{
throw new ezcBaseValueException( "options", $options, "instance of ezcConsoleOutputOptions" );
}
}
/**
* Returns the current options.
* Returns the options currently set for this output handler.
*
* @return ezcConsoleOutputOptions The current options.
*/
public function getOptions()
{
return $this->properties['options'];
}
/**
* Property read access.
*
* @throws ezcBasePropertyNotFoundException
* If the the desired property is not found.
*
* @param string $propertyName Name of the property.
* @return mixed Value of the property or null.
* @ignore
*/
public function __get( $propertyName )
{
switch ( $propertyName )
{
case 'options':
case 'formats':
return $this->properties[$propertyName];
default:
break;
}
throw new ezcBasePropertyNotFoundException( $propertyName );
}
/**
* Property write access.
*
* @param string $propertyName Name of the property.
* @param mixed $val The value for the property.
*
* @throws ezcBaseValueException
* If a the value for the property options is not an instance of
* ezcConsoleOutputOptions.
* @throws ezcBaseValueException
* If a the value for the property formats is not an instance of
* ezcConsoleOutputFormats.
* @ignore
*/
public function __set( $propertyName, $val )
{
switch ( $propertyName )
{
case 'options':
if ( !( $val instanceof ezcConsoleOutputOptions ) )
{
throw new ezcBaseValueException( $propertyName, $val, 'ezcConsoleOutputOptions' );
}
$this->properties['options'] = $val;
return;
case 'formats':
if ( !( $val instanceof ezcConsoleOutputFormats ) )
{
throw new ezcBaseValueException( $propertyName, $val, 'ezcConsoleOutputFormats' );
}
$this->properties['formats'] = $val;
return;
default:
break;
}
throw new ezcBasePropertyNotFoundException( $propertyName );
}
/**
* Property isset access.
*
* @param string $propertyName Name of the property.
* @return bool True is the property is set, otherwise false.
* @ignore
*/
public function __isset( $propertyName )
{
switch ( $propertyName )
{
case 'options':
case 'formats':
return true;
}
return false;
}
/**
* Print text to the console.
*
* Output a string to the console. If $format parameter is omitted, the
* default style is chosen. Style can either be a special style {@link
* ezcConsoleOutput::$options}, a style name {@link
* ezcConsoleOutput::$formats} or 'default' to print with the default
* styling.
*
* The $format parameter defines the name of a format. Formats are defined
* through the $formats proprty, which contains format definitions in form
* of {@link ezcConsoleOutputFormat} objects. The format influences the
* outer appearance of a message (e.g. color) as well as the target the
* message is printed to (e.g. STDERR).
*
* @throws ezcConsoleInvalidOutputTargetException
* If the given target ({@link ezcConsoleOutputFormat}) could not
* be opened for writing or writing failed.
*
* @param string $text The text to print.
* @param string $format Format chosen for printing.
* @param int $verbosityLevel On which verbose level to output this message.
* @return void
*/
public function outputText( $text, $format = 'default', $verbosityLevel = 1 )
{
if ( $this->properties['options']->verbosityLevel >= $verbosityLevel )
{
if ( is_int( $this->properties['options']->autobreak ) && $this->properties['options']->autobreak > 0 )
{
$textLines = preg_split( "(\r\n|\n|\r)", $text );
foreach ( $textLines as $id => $textLine )
{
$textLines[$id] = wordwrap( $textLine, $this->properties['options']->autobreak, PHP_EOL, true );
}
$text = implode( PHP_EOL, $textLines );
}
// Initialize target, if not happened before
if ( !isset( $this->targets[$this->formats->$format->target] ) )
{
// @ to suppress the warning. We handle error cases with an
// exception here.
if ( ( $this->targets[$this->formats->$format->target] = @fopen( $this->formats->$format->target, "w" ) ) === false )
{
throw new ezcConsoleInvalidOutputTargetException( $this->formats->$format->target );
}
}
// Print using formats or without. Note: Since the target is a part
// of the format, it will also be ignored, if you switch formats off!
if ( $this->properties['options']->useFormats === true )
{
if ( fwrite( $this->targets[$this->formats->$format->target], $this->formatText( $text, $format ) ) === false )
{
throw new ezcConsoleInvalidOutputTargetException( $this->formats->$format->target );
}
}
else
{
echo $text;
}
}
}
/**
* Print text to the console and automatically append a line break.
*
* This method acts similar to {@link ezcConsoleOutput::outputText()}, in
* fact it even uses it. The difference is, that outputLine()
* automatically appends a manual line break to the printed text. Besides
* that, you can leave out the $text parameter of outputLine() to only
* print a line break.
*
* The $format parameter defines the name of a format. Formats are defined
* through the $formats proprty, which contains format definitions in form
* of {@link ezcConsoleOutputFormat} objects. The format influences the
* outer appearance of a message (e.g. color) as well as the target the
* message is printed to (e.g. STDERR).
*
* @param string $text The text to print.
* @param string $format Format chosen for printing.
* @param int $verbosityLevel On which verbose level to output this message.
* @return void
*/
public function outputLine( $text = '', $format = 'default', $verbosityLevel = 1 )
{
$this->outputText( $text . PHP_EOL, $format, $verbosityLevel );
}
/**
* Returns a formated version of the text.
*
* If $format parameter is omitted, the default style is chosen. The format
* must be a valid registered format definition. For information on the
* formats, see {@link ezcConsoleOutput::$formats}.
*
* @param string $text Text to apply style to.
* @param string $format Format chosen to be applied.
* @return string
*/
public function formatText( $text, $format = 'default' )
{
switch ( ezcBaseFeatures::os() )
{
case "Windows":
return $text;
default:
return $this->buildSequence( $format ) . $text . $this->buildSequence( 'default' );
}
}
/**
* Stores the current cursor position.
*
* Saves the current cursor position to return to it using
* {@link ezcConsoleOutput::restorePos()}. Multiple calls
* to this method will override each other. Only the last
* position is saved.
*
* @return void
*/
public function storePos()
{
if ( ezcBaseFeatures::os() !== "Windows" )
{
echo "\0337";
$this->positionStored = true;
}
}
/**
* Restores a cursor position.
*
* Restores the cursor position last saved using {@link
* ezcConsoleOutput::storePos()}.
*
* @throws ezcConsoleNoPositionStoredException
* If no position is saved.
* @return void
*/
public function restorePos()
{
if ( ezcBaseFeatures::os() !== "Windows" )
{
if ( $this->positionStored === false )
{
throw new ezcConsoleNoPositionStoredException();
}
echo "\0338";
}
}
/**
* Move the cursor to a specific column of the current line.
*
* Moves the cursor to a specific column index of the current line (default
* is 1).
*
* @param int $column Column to jump to.
* @return void
*/
public function toPos( $column = 1 )
{
if ( ezcBaseFeatures::os() !== "Windows" )
{
echo "\033[{$column}G";
}
}
/**
* Returns if a format code is valid for the specific formating option.
*
* This method determines if a given code is valid for a specific
* formatting option ('color', 'bgcolor' or 'style').
*
* @see ezcConsoleOutput::getFormatCode();
*
* @param string $type Formating type.
* @param string $key Format option name.
* @return bool True if the code is valid.
*/
public static function isValidFormatCode( $type, $key )
{
return isset( self::${$type}[$key] );
}
/**
* Returns the escape sequence for a specific format.
*
* Returns the default format escape sequence, if the requested format does
* not exist.
*
* @param string $format Name of the format.
* @return string The escape sequence.
*/
protected function buildSequence( $format = 'default' )
{
if ( $format === 'default' )
{
return sprintf( $this->escapeSequence, 0 );
}
$modifiers = array();
$formats = array( 'color', 'style', 'bgcolor' );
foreach ( $formats as $formatType )
{
// Get modifiers
if ( is_array( $this->formats->$format->$formatType ) )
{
if ( !in_array( 'default', $this->formats->$format->$formatType ) )
{
foreach ( $this->formats->$format->$formatType as $singleVal )
{
$modifiers[] = $this->getFormatCode( $formatType, $singleVal );
}
}
}
else
{
if ( $this->formats->$format->$formatType !== 'default' )
{
$modifiers[] = $this->getFormatCode( $formatType, $this->formats->$format->$formatType );
}
}
}
// Merge modifiers
return sprintf( $this->escapeSequence, implode( ';', $modifiers ) );
}
/**
* Returns the code for a given formating option of a given type.
*
* $type is the type of formating ('color', 'bgcolor' or 'style'), $key the
* name of the format to lookup. Returns the numeric code for the requested
* format or 0 if format or type do not exist.
*
* @see ezcConsoleOutput::isValidFormatCode()
*
* @param string $type Formatting type.
* @param string $key Format option name.
* @return int The code representation.
*/
protected function getFormatCode( $type, $key )
{
if ( !ezcConsoleOutput::isValidFormatCode( $type, $key ) )
{
return 0;
}
return ezcConsoleOutput::${$type}[$key];
}
}
?>
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