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<?php |
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namespace Kasifi\Gitaski; |
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use Exception; |
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class AsciiHelper |
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{ |
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/** |
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* @param array $symbol |
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* |
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* @return string |
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*/ |
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public static function renderSymbol($symbol) |
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{ |
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$output = ''; |
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foreach ($symbol as $row) { |
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foreach ($row as $cell) { |
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switch ($cell) { |
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case 0: |
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$output .= " "; |
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break; |
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case 1: |
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$output .= "░"; |
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break; |
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case 2: |
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$output .= "▒"; |
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break; |
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case 3: |
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$output .= "▓"; |
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break; |
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case 4: |
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$output .= "█"; |
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break; |
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} |
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} |
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$output .= "\n"; |
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} |
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return $output; |
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} |
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/** |
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* @param string $ascii |
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* @param array $charMapping |
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* |
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* @return array |
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* @throws Exception |
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*/ |
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public static function generateSymbolFromAsciiString($ascii, $charMapping) |
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{ |
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$symbol = []; |
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$lines = explode("\n", $ascii); |
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$width = strlen($lines[0]); |
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if ($width > 52) { |
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throw new Exception('Text width should be <= 52 chars, now it\'s ' . $width . '.'); |
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} |
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foreach ($lines as $cols) { |
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$newCols = []; |
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for ($i = 0; $i < strlen($cols); $i++) { |
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$col = $cols[$i]; |
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$newCols[] = self::getMappedValue($col, $charMapping); |
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} |
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$symbol[] = $newCols; |
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} |
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return $symbol; |
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} |
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/** |
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* @param $string |
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* |
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* @return string |
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*/ |
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public static function generateAsciiFromText($string) |
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{ |
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$lineBreaks = 0; |
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$font = 'banner3'; |
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$ascii = file_get_contents('http://artii.herokuapp.com/make?text=' . urlencode($string) . '&font=' . $font); |
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$lines = explode("\n", $ascii); |
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$width = count($lines[0]); |
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if ($lineBreaks > 0) { |
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$more = ''; |
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for ($i = 0; $i < $lineBreaks; $i++) { |
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$more .= str_pad($more, $width) . "\n"; |
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} |
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$ascii = $more . $ascii; |
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} |
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$lines = explode("\n", $ascii); |
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$ret = []; |
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foreach ($lines as $key => $line) { |
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if ($key < 7) { |
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$ret[] = $line; |
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} |
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} |
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return $ascii; |
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} |
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/** |
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* @param array $parsedJson |
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* @param array $charMapping |
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* |
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* @return array |
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* @throws Exception |
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*/ |
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public static function generateSymbolFromJson($parsedJson, $charMapping) |
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{ |
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$lines = $parsedJson['layers'][0]['rows']; |
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$symbol = []; |
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$width = count($lines[0]['cells']); |
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if ($width > 52) { |
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throw new Exception('Text width should be <= 52 chars, now it\'s ' . $width . '.'); |
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} |
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if (count($lines) < 5) { |
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throw new Exception('Text height should be >= 5 lines, now it\'s ' . count($lines) . '.'); |
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} |
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foreach ($lines as $key => $line) { |
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if ($key < 7) { |
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$newCols = []; |
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foreach ($line['cells'] as $cell) { |
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$col = $cell[2]; |
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$newCols[] = self::getMappedValue($col, $charMapping); |
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} |
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$symbol[] = $newCols; |
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} |
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} |
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if (count($symbol) != 7) { |
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$newCols = []; |
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for ($i = 0; $i < (7 - count($symbol)); $i++) { |
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for ($j = 0; $j < $width; $j++) { |
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$newCols[] = 0; |
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} |
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} |
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$symbol[] = $newCols; |
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} |
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return $symbol; |
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} |
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148
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/** |
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149
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* @param string $char |
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150
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* @param array $charMapping |
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151
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* |
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152
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* @return int |
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153
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*/ |
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public static function getMappedValue($char, $charMapping) |
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{ |
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$value = 0; |
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if (isset($charMapping[$char])) { |
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$value = $charMapping[$char]; |
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} else { |
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if ($char == ' ') { |
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$value = 0; |
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} |
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} |
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return $value; |
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166
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} |
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167
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} |
lucascherifi /
gitaski
