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yii2-bootstrap/framework/helpers/base/Console.php

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restructured helper classes
13 years ago
<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\helpers\base;
// todo test this on all kinds of terminals, especially windows (check out lib ncurses)
/**
* Console View is the base class for console view components
*
* A console view provides functionality to create rich console application by allowing to format output
* by adding color and font style to it.
*
* @author Carsten Brandt <mail@cebe.cc>
* @since 2.0
*/
proposed refactor of ConsoleColor
13 years ago
class Console
restructured helper classes
13 years ago
{
Fixed formatting
13 years ago
const FG_BLACK = 30;
const FG_RED = 31;
const FG_GREEN = 32;
const FG_YELLOW = 33;
const FG_BLUE = 34;
const FG_PURPLE = 35;
const FG_CYAN = 36;
const FG_GREY = 37;
const BG_BLACK = 40;
const BG_RED = 41;
const BG_GREEN = 42;
const BG_YELLOW = 43;
const BG_BLUE = 44;
const BG_PURPLE = 45;
const BG_CYAN = 46;
const BG_GREY = 47;
const NORMAL = 0;
const BOLD = 1;
const ITALIC = 3;
const UNDERLINE = 4;
const BLINK = 5;
const NEGATIVE = 7;
const CONCEALED = 8;
const CROSSED_OUT = 9;
const FRAMED = 51;
const ENCIRCLED = 52;
const OVERLINED = 53;
/**
* Moves the terminal cursor up by sending ANSI control code CUU to the terminal.
* If the cursor is already at the edge of the screen, this has no effect.
* @param integer $rows number of rows the cursor should be moved up
*/
public static function moveCursorUp($rows = 1)
{
echo "\033[" . (int)$rows . 'A';
}
/**
* Moves the terminal cursor down by sending ANSI control code CUD to the terminal.
* If the cursor is already at the edge of the screen, this has no effect.
* @param integer $rows number of rows the cursor should be moved down
*/
public static function moveCursorDown($rows = 1)
{
echo "\033[" . (int)$rows . 'B';
}
/**
* Moves the terminal cursor forward by sending ANSI control code CUF to the terminal.
* If the cursor is already at the edge of the screen, this has no effect.
* @param integer $steps number of steps the cursor should be moved forward
*/
public static function moveCursorForward($steps = 1)
{
echo "\033[" . (int)$steps . 'C';
}
/**
* Moves the terminal cursor backward by sending ANSI control code CUB to the terminal.
* If the cursor is already at the edge of the screen, this has no effect.
* @param integer $steps number of steps the cursor should be moved backward
*/
public static function moveCursorBackward($steps = 1)
{
echo "\033[" . (int)$steps . 'D';
}
/**
* Moves the terminal cursor to the beginning of the next line by sending ANSI control code CNL to the terminal.
* @param integer $lines number of lines the cursor should be moved down
*/
public static function moveCursorNextLine($lines = 1)
{
echo "\033[" . (int)$lines . 'E';
}
/**
* Moves the terminal cursor to the beginning of the previous line by sending ANSI control code CPL to the terminal.
* @param integer $lines number of lines the cursor should be moved up
*/
public static function moveCursorPrevLine($lines = 1)
{
echo "\033[" . (int)$lines . 'F';
}
/**
* Moves the cursor to an absolute position given as column and row by sending ANSI control code CUP or CHA to the terminal.
* @param integer $column 1-based column number, 1 is the left edge of the screen.
* @param integer|null $row 1-based row number, 1 is the top edge of the screen. if not set, will move cursor only in current line.
*/
public static function moveCursorTo($column, $row = null)
{
if ($row === null) {
echo "\033[" . (int)$column . 'G';
} else {
echo "\033[" . (int)$row . ';' . (int)$column . 'H';
}
}
/**
* Scrolls whole page up by sending ANSI control code SU to the terminal.
* New lines are added at the bottom. This is not supported by ANSI.SYS used in windows.
* @param int $lines number of lines to scroll up
*/
public static function scrollUp($lines = 1)
{
echo "\033[" . (int)$lines . "S";
}
/**
* Scrolls whole page down by sending ANSI control code SD to the terminal.
* New lines are added at the top. This is not supported by ANSI.SYS used in windows.
* @param int $lines number of lines to scroll down
*/
public static function scrollDown($lines = 1)
{
echo "\033[" . (int)$lines . "T";
}
/**
* Saves the current cursor position by sending ANSI control code SCP to the terminal.
* Position can then be restored with {@link restoreCursorPosition}.
*/
public static function saveCursorPosition()
{
echo "\033[s";
}
/**
* Restores the cursor position saved with {@link saveCursorPosition} by sending ANSI control code RCP to the terminal.
*/
public static function restoreCursorPosition()
{
echo "\033[u";
}
/**
* Hides the cursor by sending ANSI DECTCEM code ?25l to the terminal.
* Use {@link showCursor} to bring it back.
* Do not forget to show cursor when your application exits. Cursor might stay hidden in terminal after exit.
*/
public static function hideCursor()
{
echo "\033[?25l";
}
/**
* Will show a cursor again when it has been hidden by {@link hideCursor} by sending ANSI DECTCEM code ?25h to the terminal.
*/
public static function showCursor()
{
echo "\033[?25h";
}
/**
* Clears entire screen content by sending ANSI control code ED with argument 2 to the terminal.
* Cursor position will not be changed.
* **Note:** ANSI.SYS implementation used in windows will reset cursor position to upper left corner of the screen.
*/
public static function clearScreen()
{
echo "\033[2J";
}
/**
* Clears text from cursor to the beginning of the screen by sending ANSI control code ED with argument 1 to the terminal.
* Cursor position will not be changed.
*/
public static function clearScreenBeforeCursor()
{
echo "\033[1J";
}
/**
* Clears text from cursor to the end of the screen by sending ANSI control code ED with argument 0 to the terminal.
* Cursor position will not be changed.
*/
public static function clearScreenAfterCursor()
{
echo "\033[0J";
}
/**
* Clears the line, the cursor is currently on by sending ANSI control code EL with argument 2 to the terminal.
* Cursor position will not be changed.
*/
public static function clearLine()
{
echo "\033[2K";
}
/**
* Clears text from cursor position to the beginning of the line by sending ANSI control code EL with argument 1 to the terminal.
* Cursor position will not be changed.
*/
public static function clearLineBeforeCursor()
{
echo "\033[1K";
}
/**
* Clears text from cursor position to the end of the line by sending ANSI control code EL with argument 0 to the terminal.
* Cursor position will not be changed.
*/
public static function clearLineAfterCursor()
{
echo "\033[0K";
}
/**
* Will send ANSI format for following output
*
* You can pass any of the FG_*, BG_* and TEXT_* constants and also xterm256ColorBg
* TODO: documentation
*/
public static function ansiStyle()
{
echo "\033[" . implode(';', func_get_args()) . 'm';
}
/**
* Will return a string formatted with the given ANSI style
*
* See {@link ansiStyle} for possible arguments.
* @param string $string the string to be formatted
* @return string
*/
public static function ansiStyleString($string)
{
$args = func_get_args();
array_shift($args);
$code = implode(';', $args);
return "\033[0m" . ($code !== '' ? "\033[" . $code . "m" : '') . $string . "\033[0m";
}
//const COLOR_XTERM256 = 38;// http://en.wikipedia.org/wiki/Talk:ANSI_escape_code#xterm-256colors
public static function xterm256ColorFg($i) // TODO naming!
{
return '38;5;' . $i;
}
public static function xterm256ColorBg($i) // TODO naming!
{
return '48;5;' . $i;
}
/**
* Usage: list($w, $h) = ConsoleHelper::getScreenSize();
*
* @return array
*/
public static function getScreenSize()
{
// TODO implement
return array(150, 50);
}
/**
* resets any ansi style set by previous method {@link ansiStyle}
* Any output after this is will have default text style.
*/
public static function reset()
{
echo "\033[0m";
}
/**
* Strips ANSI control codes from a string
*
* @param string $string String to strip
* @return string
*/
public static function strip($string)
{
return preg_replace('/\033\[[\d;]+m/', '', $string); // TODO currently only strips color
}
// TODO refactor and review
public static function ansiToHtml($string)
{
$tags = 0;
return preg_replace_callback(
'/\033\[[\d;]+m/',
function ($ansi) use (&$tags) {
$styleA = array();
foreach (explode(';', $ansi) as $controlCode) {
switch ($controlCode) {
case static::FG_BLACK:
$style = array('color' => '#000000');
break;
case static::FG_BLUE:
$style = array('color' => '#000078');
break;
case static::FG_CYAN:
$style = array('color' => '#007878');
break;
case static::FG_GREEN:
$style = array('color' => '#007800');
break;
case static::FG_GREY:
$style = array('color' => '#787878');
break;
case static::FG_PURPLE:
$style = array('color' => '#780078');
break;
case static::FG_RED:
$style = array('color' => '#780000');
break;
case static::FG_YELLOW:
$style = array('color' => '#787800');
break;
case static::BG_BLACK:
$style = array('background-color' => '#000000');
break;
case static::BG_BLUE:
$style = array('background-color' => '#000078');
break;
case static::BG_CYAN:
$style = array('background-color' => '#007878');
break;
case static::BG_GREEN:
$style = array('background-color' => '#007800');
break;
case static::BG_GREY:
$style = array('background-color' => '#787878');
break;
case static::BG_PURPLE:
$style = array('background-color' => '#780078');
break;
case static::BG_RED:
$style = array('background-color' => '#780000');
break;
case static::BG_YELLOW:
$style = array('background-color' => '#787800');
break;
case static::BOLD:
$style = array('font-weight' => 'bold');
break;
case static::ITALIC:
$style = array('font-style' => 'italic');
break;
case static::UNDERLINE:
$style = array('text-decoration' => array('underline'));
break;
case static::OVERLINED:
$style = array('text-decoration' => array('overline'));
break;
case static::CROSSED_OUT:
$style = array('text-decoration' => array('line-through'));
break;
case static::BLINK:
$style = array('text-decoration' => array('blink'));
break;
case static::NEGATIVE: // ???
case static::CONCEALED:
case static::ENCIRCLED:
case static::FRAMED:
// TODO allow resetting codes
break;
case 0: // ansi reset
$return = '';
for ($n = $tags; $tags > 0; $tags--) {
$return .= '</span>';
}
return $return;
}
$styleA = ArrayHelper::merge($styleA, $style);
}
$styleString[] = array();
foreach ($styleA as $name => $content) {
if ($name === 'text-decoration') {
$content = implode(' ', $content);
}
$styleString[] = $name . ':' . $content;
}
$tags++;
return '<span' . (!empty($styleString) ? 'style="' . implode(';', $styleString) : '') . '>';
},
$string
);
}
restructured helper classes
13 years ago
proposed refactor of ConsoleColor
13 years ago
/**
*
* Returns an ANSI-Controlcode
*
* Takes 1 to 3 Arguments: either 1 to 3 strings containing the name of the
* FG Color, style and BG color, or one array with the indices color, style
* or background.
*
* @param mixed $color Optional.
* Either a string with the name of the foreground
* color, or an array with the indices 'color',
* 'style', 'background' and corresponding names as
* values.
* @param string $style Optional name of the style
* @param string $background Optional name of the background color
*
* @return string
*/
public function color($color = null, $style = null, $background = null) // {{{
{
$colors = static::getColorCodes();
if (is_array($color)) {
$style = isset($color['style']) ? $color['style'] : null;
$background = isset($color['background']) ? $color['background'] : null;
$color = isset($color['color']) ? $color['color'] : null;
}
if ($color == 'reset') {
return "\033[0m";
}
$code = array();
if (isset($style)) {
$code[] = $colors['style'][$style];
}
if (isset($color)) {
$code[] = $colors['color'][$color];
}
if (isset($background)) {
$code[] = $colors['background'][$background];
}
if (empty($code)) {
$code[] = 0;
}
$code = implode(';', $code);
return "\033[{$code}m";
}
/**
Fixed formatting
13 years ago
* TODO syntax copied from https://github.com/pear/Console_Color2/blob/master/Console/Color2.php
*
* Converts colorcodes in the format %y (for yellow) into ansi-control
* codes. The conversion table is: ('bold' meaning 'light' on some
* terminals). It's almost the same conversion table irssi uses.
* <pre>
* text text background
* ------------------------------------------------
* %k %K %0 black dark grey black
* %r %R %1 red bold red red
* %g %G %2 green bold green green
* %y %Y %3 yellow bold yellow yellow
* %b %B %4 blue bold blue blue
* %m %M %5 magenta bold magenta magenta
* %p %P magenta (think: purple)
* %c %C %6 cyan bold cyan cyan
* %w %W %7 white bold white white
*
* %F Blinking, Flashing
* %U Underline
* %8 Reverse
* %_,%9 Bold
*
* %n Resets the color
* %% A single %
* </pre>
* First param is the string to convert, second is an optional flag if
* colors should be used. It defaults to true, if set to false, the
* colorcodes will just be removed (And %% will be transformed into %)
*
* @param string $string String to convert
* @param bool $colored Should the string be colored?
*
* @return string
*/
public static function renderColoredString($string, $colored = true)
{
static $conversions = array( // static so the array doesn't get built
// everytime
// %y - yellow, and so on... {{{
'%y' => array('color' => 'yellow'),
'%g' => array('color' => 'green'),
'%b' => array('color' => 'blue'),
'%r' => array('color' => 'red'),
'%p' => array('color' => 'purple'),
'%m' => array('color' => 'purple'),
'%c' => array('color' => 'cyan'),
'%w' => array('color' => 'grey'),
'%k' => array('color' => 'black'),
'%n' => array('color' => 'reset'),
'%Y' => array('color' => 'yellow', 'style' => 'light'),
'%G' => array('color' => 'green', 'style' => 'light'),
'%B' => array('color' => 'blue', 'style' => 'light'),
'%R' => array('color' => 'red', 'style' => 'light'),
'%P' => array('color' => 'purple', 'style' => 'light'),
'%M' => array('color' => 'purple', 'style' => 'light'),
'%C' => array('color' => 'cyan', 'style' => 'light'),
'%W' => array('color' => 'grey', 'style' => 'light'),
'%K' => array('color' => 'black', 'style' => 'light'),
'%N' => array('color' => 'reset', 'style' => 'light'),
'%3' => array('background' => 'yellow'),
'%2' => array('background' => 'green'),
'%4' => array('background' => 'blue'),
'%1' => array('background' => 'red'),
'%5' => array('background' => 'purple'),
'%6' => array('background' => 'cyan'),
'%7' => array('background' => 'grey'),
'%0' => array('background' => 'black'),
// Don't use this, I can't stand flashing text
'%F' => array('style' => 'blink'),
'%U' => array('style' => 'underline'),
'%8' => array('style' => 'inverse'),
'%9' => array('style' => 'bold'),
'%_' => array('style' => 'bold')
// }}}
);
if ($colored) {
$string = str_replace('%%', '% ', $string);
foreach ($conversions as $key => $value) {
$string = str_replace(
$key,
static::color($value),
$string
);
}
$string = str_replace('% ', '%', $string);
} else {
$string = preg_replace('/%((%)|.)/', '$2', $string);
}
return $string;
}
restructured helper classes
13 years ago
proposed refactor of ConsoleColor
13 years ago
/**
* Returns the different foreground and background color codes and styles available.
* @return array the color codes
*/
public static function getColorCodes()
{
return array(
Fixed formatting
13 years ago
'color' => array(
proposed refactor of ConsoleColor
13 years ago
'black' => static::FG_BLACK,
'red' => static::FG_RED,
'green' => static::FG_GREEN,
'yellow' => static::FG_YELLOW,
'blue' => static::FG_BLUE,
'purple' => static::FG_PURPLE,
'cyan' => static::FG_CYAN,
'grey' => static::FG_GREY,
),
Fixed formatting
13 years ago
'style' => array(
proposed refactor of ConsoleColor
13 years ago
'normal' => static::NORMAL,
'bold' => static::BOLD,
'italic' => static::ITALIC,
'underline' => static::UNDERLINE,
'blink' => static::BLINK,
'negative' => static::NEGATIVE,
'concealed' => static::CONCEALED,
'crossed_out' => static::CROSSED_OUT,
'framed' => static::FRAMED,
'encircled' => static::ENCIRCLED,
'overlined' => static::OVERLINED
),
'background' => array(
'black' => static::BG_BLACK,
'red' => static::BG_RED,
'green' => static::BG_RED,
'yellow' => static::BG_YELLOW,
'blue' => static::BG_BLUE,
'purple' => static::BG_PURPLE,
'cyan' => static::BG_CYAN,
'grey' => static::BG_GREY
)
);
}
Fixed formatting
13 years ago
/**
* Escapes % so they don't get interpreted as color codes
*
* @param string $string String to escape
*
* @access public
* @return string
*/
public static function escape($string)
{
return str_replace('%', '%%', $string);
}
proposed refactor of ConsoleColor
13 years ago
/**
* Returns true if the stream supports colorization. ANSI colors is disabled if not supported by the stream.
*
* - windows without asicon
* - not tty consoles
*
* @param mixed $stream
* @return bool true if the stream supports ANSI colors, otherwise false.
*/
Fixed formatting
13 years ago
public static function streamSupportsAnsiColors($stream)
proposed refactor of ConsoleColor
13 years ago
{
return DIRECTORY_SEPARATOR == '\\'
? null !== getenv('ANSICON')
: function_exists('posix_isatty') && @posix_isatty($stream);
}
/**
* Returns true if the console is running on windows
* @return bool
*/
public static function isRunningOnWindows()
{
return strtoupper(substr(PHP_OS, 0, 3)) === 'WIN';
}
/**
* Gets input from STDIN and returns a string right-trimmed for EOLs.
*
* @param bool $raw If set to true, returns the raw string without trimming
*
* @return string
*/
public static function stdin($raw = false)
{
return $raw ? fgets(STDIN) : rtrim(fgets(STDIN), PHP_EOL);
}
/**
* Prints text to STDOUT.
*
* @param string $text
* @param bool $raw
*
* @return int|false Number of bytes printed or false on error
*/
public static function stdout($text, $raw = false)
{
if ($raw) {
return fwrite(STDOUT, $text);
} elseif (static::streamSupportsAnsiColors(STDOUT)) {
return fwrite(STDOUT, static::renderColoredString($text));
} else {
return fwrite(STDOUT, static::renderColoredString($text, false));
}
}
/**
* Prints text to STDERR.
*
* @param string $text
* @param bool $raw
*
* @return mixed Number of bytes printed or bool false on error.
*/
public static function stderr($text, $raw = false)
{
if ($raw) {
return fwrite(STDERR, $text);
} elseif (static::streamSupportsAnsiColors(STDERR)) {
return fwrite(STDERR, static::renderColoredString($text));
} else {
return fwrite(STDERR, static::renderColoredString($text, false));
}
}
/**
* Prints text to STDERR appended with a carriage return (PHP_EOL).
*
* @param string $text
* @param bool $raw
*
* @return mixed Number of bytes printed or false on error
*/
public static function error($text = null, $raw = false)
{
return static::stderr($text . PHP_EOL, $raw);
}
/**
* Asks the user for input. Ends when the user types a carriage return (PHP_EOL). Optionally, It also provides a
* prompt.
*
* @param string $prompt the prompt (optional)
* @return string the user's input
*/
public static function input($prompt = null)
{
Fixed formatting
13 years ago
if (isset($prompt)) {
proposed refactor of ConsoleColor
13 years ago
static::stdout($prompt);
}
return static::stdin();
}
/**
* Prints text to STDOUT appended with a carriage return (PHP_EOL).
*
* @param string $text
* @param bool $raw
*
* @return mixed Number of bytes printed or bool false on error
*/
public static function output($text = null, $raw = false)
{
return static::stdout($text . PHP_EOL, $raw);
}
/**
* Prompts the user for input and validates it
*
* @param string $text prompt string
* @param array $options the options to validate the input:
* - required: whether it is required or not
* - default: default value if no input is inserted by the user
* - pattern: regular expression pattern to validate user input
* - validator: a callable function to validate input. The function must accept two parameters:
* - $input: the user input to validate
* - $error: the error value passed by reference if validation failed.
* @return string the user input
*/
public static function prompt($text, $options = array())
{
Fixed formatting
13 years ago
$options = ArrayHelper::merge(
$options,
array(
'required' => false,
'default' => null,
'pattern' => null,
'validator' => null,
'error' => 'Invalid input.',
)
);
$error = null;
proposed refactor of ConsoleColor
13 years ago
top:
$input = $options['default']
? static::input("$text [" . $options['default'] . ']: ')
: static::input("$text: ");
if (!strlen($input)) {
if (isset($options['default'])) {
$input = $options['default'];
} elseif ($options['required']) {
static::output($options['error']);
goto top;
}
} elseif ($options['pattern'] && !preg_match($options['pattern'], $input)) {
static::output($options['error']);
goto top;
} elseif ($options['validator'] &&
Fixed formatting
13 years ago
!call_user_func_array($options['validator'], array($input, &$error))
) {
proposed refactor of ConsoleColor
13 years ago
static::output(isset($error) ? $error : $options['error']);
goto top;
}
return $input;
}
/**
* Asks the user for a simple yes/no confirmation.
*
* @param string $prompt the prompt string
*
* @return bool true or false according to user input.
*/
public static function confirm($prompt)
{
top:
$input = strtolower(static::input("$prompt [y/n]: "));
Fixed formatting
13 years ago
if (!in_array(substr($input, 0, 1), array('y', 'n'))) {
proposed refactor of ConsoleColor
13 years ago
static::output("Please, type 'y' or 'n'");
goto top;
}
return $input === 'y' ? true : false;
}
/**
* Gives the user an option to choose from. Giving '?' as an input will show
* a list of options to choose from and their explanations.
*
* @param string $prompt the prompt message
* @param array $options Key-value array of options to choose from
*
* @return string An option character the user chose
*/
public static function select($prompt, $options = array())
{
top:
static::stdout("$prompt [" . implode(',', array_keys($options)) . ",?]: ");
$input = static::stdin();
if ($input === '?') {
foreach ($options as $key => $value) {
echo " $key - $value\n";
}
echo " ? - Show help\n";
goto top;
Fixed formatting
13 years ago
} elseif (!in_array($input, array_keys($options))) {
goto top;
}
proposed refactor of ConsoleColor
13 years ago
return $input;
}
/**
* Displays and updates a simple progress bar on screen.
*
* @param $done the number of items that are completed
* @param $total the total value of items that are to be done
* @param int $size the size of the status bar (optional)
* @see http://snipplr.com/view/29548/
*/
Fixed formatting
13 years ago
public static function showProgress($done, $total, $size = 30)
proposed refactor of ConsoleColor
13 years ago
{
static $start;
// if we go over our bound, just ignore it
Fixed formatting
13 years ago
if ($done > $total) {
proposed refactor of ConsoleColor
13 years ago
return;
}
Fixed formatting
13 years ago
if (empty($start)) {
$start = time();
proposed refactor of ConsoleColor
13 years ago
}
$now = time();
Fixed formatting
13 years ago
$percent = (double)($done / $total);
$bar = floor($percent * $size);
proposed refactor of ConsoleColor
13 years ago
Fixed formatting
13 years ago
$status = "\r[";
$status .= str_repeat("=", $bar);
if ($bar < $size) {
$status .= ">";
$status .= str_repeat(" ", $size - $bar);
proposed refactor of ConsoleColor
13 years ago
} else {
Fixed formatting
13 years ago
$status .= "=";
proposed refactor of ConsoleColor
13 years ago
}
Fixed formatting
13 years ago
$display = number_format($percent * 100, 0);
proposed refactor of ConsoleColor
13 years ago
Fixed formatting
13 years ago
$status .= "] $display% $done/$total";
proposed refactor of ConsoleColor
13 years ago
Fixed formatting
13 years ago
$rate = ($now - $start) / $done;
proposed refactor of ConsoleColor
13 years ago
$left = $total - $done;
Fixed formatting
13 years ago
$eta = round($rate * $left, 2);
proposed refactor of ConsoleColor
13 years ago
$elapsed = $now - $start;
Fixed formatting
13 years ago
$status .= " remaining: " . number_format($eta) . " sec. elapsed: " . number_format($elapsed) . " sec.";
proposed refactor of ConsoleColor
13 years ago
static::stdout("$status ");
flush();
// when done, send a newline
Fixed formatting
13 years ago
if ($done == $total) {
proposed refactor of ConsoleColor
13 years ago
echo "\n";
}
}
restructured helper classes
13 years ago
}