pictcode / lib / Cake / Console / ConsoleOutput.php @ 0b1b8047
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1 | 635eef61 | spyder1211 | <?php
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2 | /**
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3 | * ConsoleOutput file.
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4 | *
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5 | * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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6 | * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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7 | *
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8 | * Licensed under The MIT License
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9 | * For full copyright and license information, please see the LICENSE.txt
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10 | * Redistributions of files must retain the above copyright notice.
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11 | *
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12 | * @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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13 | * @link http://cakephp.org CakePHP(tm) Project
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14 | * @since CakePHP(tm) v 2.0
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15 | * @license http://www.opensource.org/licenses/mit-license.php MIT License
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16 | */
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17 | |||
18 | /**
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19 | * Object wrapper for outputting information from a shell application.
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20 | * Can be connected to any stream resource that can be used with fopen()
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21 | *
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22 | * Can generate colorized output on consoles that support it. There are a few
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23 | * built in styles
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24 | *
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25 | * - `error` Error messages.
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26 | * - `warning` Warning messages.
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27 | * - `info` Informational messages.
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28 | * - `comment` Additional text.
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29 | * - `question` Magenta text used for user prompts
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30 | *
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31 | * By defining styles with addStyle() you can create custom console styles.
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32 | *
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33 | * ### Using styles in output
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34 | *
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35 | * You can format console output using tags with the name of the style to apply. From inside a shell object
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36 | *
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37 | * `$this->out('<warning>Overwrite:</warning> foo.php was overwritten.');`
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38 | *
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39 | * This would create orange 'Overwrite:' text, while the rest of the text would remain the normal color.
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40 | * See ConsoleOutput::styles() to learn more about defining your own styles. Nested styles are not supported
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41 | * at this time.
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42 | *
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43 | * @package Cake.Console
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44 | */
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45 | class ConsoleOutput { |
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46 | |||
47 | /**
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48 | * Raw output constant - no modification of output text.
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49 | *
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50 | * @var int
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51 | */
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52 | const RAW = 0; |
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53 | |||
54 | /**
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55 | * Plain output - tags will be stripped.
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56 | *
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57 | * @var int
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58 | */
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59 | const PLAIN = 1; |
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60 | |||
61 | /**
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62 | * Color output - Convert known tags in to ANSI color escape codes.
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63 | *
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64 | * @var int
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65 | */
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66 | const COLOR = 2; |
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67 | |||
68 | /**
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69 | * Constant for a newline.
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70 | *
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71 | * @var string
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72 | */
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73 | const LF = PHP_EOL; |
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74 | |||
75 | /**
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76 | * File handle for output.
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77 | *
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78 | * @var resource
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79 | */
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80 | protected $_output; |
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81 | |||
82 | /**
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83 | * The current output type. Manipulated with ConsoleOutput::outputAs();
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84 | *
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85 | * @var int
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86 | */
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87 | protected $_outputAs = self::COLOR; |
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88 | |||
89 | /**
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90 | * text colors used in colored output.
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91 | *
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92 | * @var array
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93 | */
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94 | protected static $_foregroundColors = array( |
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95 | 'black' => 30, |
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96 | 'red' => 31, |
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97 | 'green' => 32, |
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98 | 'yellow' => 33, |
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99 | 'blue' => 34, |
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100 | 'magenta' => 35, |
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101 | 'cyan' => 36, |
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102 | 'white' => 37 |
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103 | ); |
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104 | |||
105 | /**
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106 | * background colors used in colored output.
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107 | *
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108 | * @var array
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109 | */
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110 | protected static $_backgroundColors = array( |
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111 | 'black' => 40, |
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112 | 'red' => 41, |
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113 | 'green' => 42, |
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114 | 'yellow' => 43, |
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115 | 'blue' => 44, |
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116 | 'magenta' => 45, |
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117 | 'cyan' => 46, |
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118 | 'white' => 47 |
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119 | ); |
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120 | |||
121 | /**
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122 | * formatting options for colored output
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123 | *
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124 | * @var string
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125 | */
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126 | protected static $_options = array( |
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127 | 'bold' => 1, |
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128 | 'underline' => 4, |
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129 | 'blink' => 5, |
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130 | 'reverse' => 7, |
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131 | ); |
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132 | |||
133 | /**
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134 | * Styles that are available as tags in console output.
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135 | * You can modify these styles with ConsoleOutput::styles()
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136 | *
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137 | * @var array
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138 | */
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139 | protected static $_styles = array( |
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140 | 'emergency' => array('text' => 'red', 'underline' => true), |
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141 | 'alert' => array('text' => 'red', 'underline' => true), |
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142 | 'critical' => array('text' => 'red', 'underline' => true), |
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143 | 'error' => array('text' => 'red', 'underline' => true), |
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144 | 'warning' => array('text' => 'yellow'), |
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145 | 'info' => array('text' => 'cyan'), |
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146 | 'debug' => array('text' => 'yellow'), |
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147 | 'success' => array('text' => 'green'), |
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148 | 'comment' => array('text' => 'blue'), |
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149 | 'question' => array('text' => 'magenta'), |
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150 | 'notice' => array('text' => 'cyan') |
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151 | ); |
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152 | |||
153 | /**
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154 | * Construct the output object.
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155 | *
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156 | * Checks for a pretty console environment. Ansicon and ConEmu allows
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157 | * pretty consoles on Windows, and is supported.
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158 | *
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159 | * @param string $stream The identifier of the stream to write output to.
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160 | */
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161 | public function __construct($stream = 'php://stdout') { |
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162 | $this->_output = fopen($stream, 'w'); |
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163 | |||
164 | if ((DS === '\\' && !(bool)env('ANSICON') && env('ConEmuANSI') !== 'ON') || |
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165 | $stream === 'php://output' || |
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166 | (function_exists('posix_isatty') && !posix_isatty($this->_output)) |
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167 | ) { |
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168 | $this->_outputAs = static::PLAIN; |
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169 | } |
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170 | } |
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171 | |||
172 | /**
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173 | * Outputs a single or multiple messages to stdout. If no parameters
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174 | * are passed, outputs just a newline.
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175 | *
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176 | * @param string|array $message A string or an array of strings to output
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177 | * @param int $newlines Number of newlines to append
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178 | * @return int Returns the number of bytes returned from writing to stdout.
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179 | */
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180 | public function write($message, $newlines = 1) { |
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181 | if (is_array($message)) { |
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182 | $message = implode(static::LF, $message); |
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183 | } |
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184 | return $this->_write($this->styleText($message . str_repeat(static::LF, $newlines))); |
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185 | } |
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186 | |||
187 | /**
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188 | * Apply styling to text.
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189 | *
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190 | * @param string $text Text with styling tags.
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191 | * @return string String with color codes added.
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192 | */
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193 | public function styleText($text) { |
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194 | if ($this->_outputAs == static::RAW) { |
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195 | return $text; |
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196 | } |
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197 | if ($this->_outputAs == static::PLAIN) { |
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198 | $tags = implode('|', array_keys(static::$_styles)); |
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199 | return preg_replace('#</?(?:' . $tags . ')>#', '', $text); |
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200 | } |
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201 | return preg_replace_callback( |
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202 | '/<(?P<tag>[a-z0-9-_]+)>(?P<text>.*?)<\/(\1)>/ims', array($this, '_replaceTags'), $text |
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203 | ); |
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204 | } |
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205 | |||
206 | /**
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207 | * Replace tags with color codes.
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208 | *
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209 | * @param array $matches An array of matches to replace.
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210 | * @return string
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211 | */
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212 | protected function _replaceTags($matches) { |
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213 | $style = $this->styles($matches['tag']); |
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214 | if (empty($style)) { |
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215 | return '<' . $matches['tag'] . '>' . $matches['text'] . '</' . $matches['tag'] . '>'; |
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216 | } |
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217 | |||
218 | $styleInfo = array(); |
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219 | if (!empty($style['text']) && isset(static::$_foregroundColors[$style['text']])) { |
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220 | $styleInfo[] = static::$_foregroundColors[$style['text']]; |
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221 | } |
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222 | if (!empty($style['background']) && isset(static::$_backgroundColors[$style['background']])) { |
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223 | $styleInfo[] = static::$_backgroundColors[$style['background']]; |
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224 | } |
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225 | unset($style['text'], $style['background']); |
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226 | foreach ($style as $option => $value) { |
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227 | if ($value) { |
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228 | $styleInfo[] = static::$_options[$option]; |
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229 | } |
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230 | } |
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231 | return "\033[" . implode($styleInfo, ';') . 'm' . $matches['text'] . "\033[0m"; |
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232 | } |
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233 | |||
234 | /**
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235 | * Writes a message to the output stream.
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236 | *
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237 | * @param string $message Message to write.
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238 | * @return bool success
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239 | */
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240 | protected function _write($message) { |
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241 | return fwrite($this->_output, $message); |
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242 | } |
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243 | |||
244 | /**
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245 | * Get the current styles offered, or append new ones in.
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246 | *
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247 | * ### Get a style definition
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248 | *
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249 | * `$this->output->styles('error');`
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250 | *
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251 | * ### Get all the style definitions
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252 | *
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253 | * `$this->output->styles();`
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254 | *
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255 | * ### Create or modify an existing style
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256 | *
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257 | * `$this->output->styles('annoy', array('text' => 'purple', 'background' => 'yellow', 'blink' => true));`
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258 | *
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259 | * ### Remove a style
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260 | *
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261 | * `$this->output->styles('annoy', false);`
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262 | *
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263 | * @param string $style The style to get or create.
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264 | * @param array $definition The array definition of the style to change or create a style
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265 | * or false to remove a style.
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266 | * @return mixed If you are getting styles, the style or null will be returned. If you are creating/modifying
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267 | * styles true will be returned.
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268 | */
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269 | public function styles($style = null, $definition = null) { |
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270 | if ($style === null && $definition === null) { |
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271 | return static::$_styles; |
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272 | } |
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273 | if (is_string($style) && $definition === null) { |
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274 | return isset(static::$_styles[$style]) ? static::$_styles[$style] : null; |
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275 | } |
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276 | if ($definition === false) { |
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277 | unset(static::$_styles[$style]); |
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278 | return true; |
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279 | } |
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280 | static::$_styles[$style] = $definition; |
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281 | return true; |
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282 | } |
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283 | |||
284 | /**
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285 | * Get/Set the output type to use. The output type how formatting tags are treated.
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286 | *
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287 | * @param int $type The output type to use. Should be one of the class constants.
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288 | * @return mixed Either null or the value if getting.
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289 | */
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290 | public function outputAs($type = null) { |
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291 | if ($type === null) { |
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292 | return $this->_outputAs; |
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293 | } |
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294 | $this->_outputAs = $type; |
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295 | } |
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296 | |||
297 | /**
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298 | * Clean up and close handles
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299 | */
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300 | public function __destruct() { |
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301 | if (is_resource($this->_output)) { |
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302 | fclose($this->_output); |
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303 | } |
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304 | } |
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305 | |||
306 | } |