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<?php |
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namespace Consolidation\OutputFormatters\Transformations\Wrap; |
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use Symfony\Component\Console\Helper\TableStyle; |
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/** |
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* Calculate column widths for table cells. |
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* |
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* Influenced by Drush and webmozart/console. |
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*/ |
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class CalculateWidths |
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{ |
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public function __construct() |
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{ |
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} |
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/** |
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* Given the total amount of available space, and the width of |
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* the columns to place, calculate the optimum column widths to use. |
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*/ |
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public function calculate($availableWidth, ColumnWidths $dataWidths, ColumnWidths $minimumWidths) |
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{ |
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// First, check to see if all columns will fit at their full widths. |
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// If so, do no further calculations. (This may be redundant with |
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// the short column width calculation.) |
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if ($dataWidths->totalWidth() <= $availableWidth) { |
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return $dataWidths->enforceMinimums($minimumWidths); |
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} |
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// Get the short columns first. If there are none, then distribute all |
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// of the available width among the remaining columns. |
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$shortColWidths = $this->getShortColumns($availableWidth, $dataWidths, $minimumWidths); |
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if ($shortColWidths->isEmpty()) { |
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return $this->distributeLongColumns($availableWidth, $dataWidths, $minimumWidths); |
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} |
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// If some short columns were removed, then account for the length |
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// of the removed columns and make a recursive call (since the average |
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// width may be higher now, if the removed columns were shorter in |
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// length than the previous average). |
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$availableWidth -= $shortColWidths->totalWidth(); |
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$remainingWidths = $dataWidths->removeColumns($shortColWidths->keys()); |
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$remainingColWidths = $this->calculate($availableWidth, $remainingWidths, $minimumWidths); |
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return $shortColWidths->combine($remainingColWidths); |
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} |
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/** |
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* Calculate the longest cell data from any row of each of the cells. |
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*/ |
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public function calculateLongestCell($rows) |
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{ |
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return $this->calculateColumnWidths( |
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$rows, |
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function ($cell) { |
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return strlen($cell); |
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} |
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); |
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} |
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/** |
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* Calculate the longest word and longest line in the provided data. |
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*/ |
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public function calculateLongestWord($rows) |
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{ |
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return $this->calculateColumnWidths( |
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$rows, |
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function ($cell) { |
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return static::longestWordLength($cell); |
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} |
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); |
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} |
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protected function calculateColumnWidths($rows, callable $fn) |
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{ |
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$widths = []; |
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// Examine each row and find the longest line length and longest |
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// word in each column. |
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foreach ($rows as $rowkey => $row) { |
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foreach ($row as $colkey => $cell) { |
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$value = $fn($cell); |
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if ((!isset($widths[$colkey]) || ($widths[$colkey] < $value))) { |
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$widths[$colkey] = $value; |
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} |
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} |
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} |
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return new ColumnWidths($widths); |
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} |
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/** |
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* Return all of the columns whose longest line length is less than or |
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* equal to the average width. |
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*/ |
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public function getShortColumns($availableWidth, ColumnWidths $dataWidths, ColumnWidths $minimumWidths) |
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{ |
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$averageWidth = $dataWidths->averageWidth($availableWidth); |
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$shortColWidths = $dataWidths->findShortColumns($averageWidth); |
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return $shortColWidths->enforceMinimums($minimumWidths); |
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} |
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/** |
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* Distribute the remainig space among the columns that were not |
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* included in the list of "short" columns. |
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*/ |
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public function distributeLongColumns($availableWidth, ColumnWidths $dataWidths, ColumnWidths $minimumWidths) |
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{ |
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// First distribute the remainder without regard to the minimum widths. |
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$result = $dataWidths->distribute($availableWidth); |
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// Find columns that are shorter than their minimum width. |
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$undersized = $result->findUndersizedColumns($minimumWidths); |
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// Nothing too small? Great, we're done! |
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if ($undersized->isEmpty()) { |
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return $result; |
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} |
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// Take out the columns that are too small and redistribute the rest. |
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$availableWidth -= $undersized->totalWidth(); |
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$remaining = $dataWidths->removeColumns($undersized); |
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$distributeRemaining = $this->distributeLongColumns($availableWidth, $remaining, $minimumWidths); |
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return $undersized->combine($distributeRemaining); |
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} |
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/** |
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* Return the length of the longest word in the string. |
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* @param string $str |
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* @return int |
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*/ |
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protected static function longestWordLength($str) |
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{ |
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$words = preg_split('#[ /-]#', $str); |
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$lengths = array_map(function ($s) { |
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return strlen($s); |
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}, $words); |
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return max($lengths); |
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} |
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} |
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consolidation /
output-formatters
