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* * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Console\Helper; use Symfony\Component\Console\Exception\InvalidArgumentException; use Symfony\Component\Console\Output\OutputInterface; /** * Provides helpers to display a table. * * @author Fabien Potencier
* @author Саша Стаменковић
* @author Abdellatif Ait boudad
* @author Max Grigorian
*/ class Table { /** * Table headers. */ private $headers = []; /** * Table rows. */ private $rows = []; /** * Column widths cache. */ private $effectiveColumnWidths = []; /** * Number of columns cache. * * @var int */ private $numberOfColumns; /** * @var OutputInterface */ private $output; /** * @var TableStyle */ private $style; /** * @var array */ private $columnStyles = []; /** * User set column widths. * * @var array */ private $columnWidths = []; private static $styles; public function __construct(OutputInterface $output) { $this->output = $output; if (!self::$styles) { self::$styles = self::initStyles(); } $this->setStyle('default'); } /** * Sets a style definition. * * @param string $name The style name * @param TableStyle $style A TableStyle instance */ public static function setStyleDefinition($name, TableStyle $style) { if (!self::$styles) { self::$styles = self::initStyles(); } self::$styles[$name] = $style; } /** * Gets a style definition by name. * * @param string $name The style name * * @return TableStyle */ public static function getStyleDefinition($name) { if (!self::$styles) { self::$styles = self::initStyles(); } if (isset(self::$styles[$name])) { return self::$styles[$name]; } throw new InvalidArgumentException(sprintf('Style "%s" is not defined.', $name)); } /** * Sets table style. * * @param TableStyle|string $name The style name or a TableStyle instance * * @return $this */ public function setStyle($name) { $this->style = $this->resolveStyle($name); return $this; } /** * Gets the current table style. * * @return TableStyle */ public function getStyle() { return $this->style; } /** * Sets table column style. * * @param int $columnIndex Column index * @param TableStyle|string $name The style name or a TableStyle instance * * @return $this */ public function setColumnStyle($columnIndex, $name) { $columnIndex = (int) $columnIndex; $this->columnStyles[$columnIndex] = $this->resolveStyle($name); return $this; } /** * Gets the current style for a column. * * If style was not set, it returns the global table style. * * @param int $columnIndex Column index * * @return TableStyle */ public function getColumnStyle($columnIndex) { if (isset($this->columnStyles[$columnIndex])) { return $this->columnStyles[$columnIndex]; } return $this->getStyle(); } /** * Sets the minimum width of a column. * * @param int $columnIndex Column index * @param int $width Minimum column width in characters * * @return $this */ public function setColumnWidth($columnIndex, $width) { $this->columnWidths[(int) $columnIndex] = (int) $width; return $this; } /** * Sets the minimum width of all columns. * * @return $this */ public function setColumnWidths(array $widths) { $this->columnWidths = []; foreach ($widths as $index => $width) { $this->setColumnWidth($index, $width); } return $this; } public function setHeaders(array $headers) { $headers = array_values($headers); if (!empty($headers) && !\is_array($headers[0])) { $headers = [$headers]; } $this->headers = $headers; return $this; } public function setRows(array $rows) { $this->rows = []; return $this->addRows($rows); } public function addRows(array $rows) { foreach ($rows as $row) { $this->addRow($row); } return $this; } public function addRow($row) { if ($row instanceof TableSeparator) { $this->rows[] = $row; return $this; } if (!\is_array($row)) { throw new InvalidArgumentException('A row must be an array or a TableSeparator instance.'); } $this->rows[] = array_values($row); return $this; } public function setRow($column, array $row) { $this->rows[$column] = $row; return $this; } /** * Renders table to output. * * Example: * * +---------------+-----------------------+------------------+ * | ISBN | Title | Author | * +---------------+-----------------------+------------------+ * | 99921-58-10-7 | Divine Comedy | Dante Alighieri | * | 9971-5-0210-0 | A Tale of Two Cities | Charles Dickens | * | 960-425-059-0 | The Lord of the Rings | J. R. R. Tolkien | * +---------------+-----------------------+------------------+ */ public function render() { $this->calculateNumberOfColumns(); $rows = $this->buildTableRows($this->rows); $headers = $this->buildTableRows($this->headers); $this->calculateColumnsWidth(array_merge($headers, $rows)); $this->renderRowSeparator(); if (!empty($headers)) { foreach ($headers as $header) { $this->renderRow($header, $this->style->getCellHeaderFormat()); $this->renderRowSeparator(); } } foreach ($rows as $row) { if ($row instanceof TableSeparator) { $this->renderRowSeparator(); } else { $this->renderRow($row, $this->style->getCellRowFormat()); } } if (!empty($rows)) { $this->renderRowSeparator(); } $this->cleanup(); } /** * Renders horizontal header separator. * * Example: * * +-----+-----------+-------+ */ private function renderRowSeparator() { if (0 === $count = $this->numberOfColumns) { return; } if (!$this->style->getHorizontalBorderChar() && !$this->style->getCrossingChar()) { return; } $markup = $this->style->getCrossingChar(); for ($column = 0; $column < $count; ++$column) { $markup .= str_repeat($this->style->getHorizontalBorderChar(), $this->effectiveColumnWidths[$column]).$this->style->getCrossingChar(); } $this->output->writeln(sprintf($this->style->getBorderFormat(), $markup)); } /** * Renders vertical column separator. */ private function renderColumnSeparator() { return sprintf($this->style->getBorderFormat(), $this->style->getVerticalBorderChar()); } /** * Renders table row. * * Example: * * | 9971-5-0210-0 | A Tale of Two Cities | Charles Dickens | * * @param string $cellFormat */ private function renderRow(array $row, $cellFormat) { if (empty($row)) { return; } $rowContent = $this->renderColumnSeparator(); foreach ($this->getRowColumns($row) as $column) { $rowContent .= $this->renderCell($row, $column, $cellFormat); $rowContent .= $this->renderColumnSeparator(); } $this->output->writeln($rowContent); } /** * Renders table cell with padding. * * @param int $column * @param string $cellFormat */ private function renderCell(array $row, $column, $cellFormat) { $cell = isset($row[$column]) ? $row[$column] : ''; $width = $this->effectiveColumnWidths[$column]; if ($cell instanceof TableCell && $cell->getColspan() > 1) { // add the width of the following columns(numbers of colspan). foreach (range($column + 1, $column + $cell->getColspan() - 1) as $nextColumn) { $width += $this->getColumnSeparatorWidth() + $this->effectiveColumnWidths[$nextColumn]; } } // str_pad won't work properly with multi-byte strings, we need to fix the padding if (false !== $encoding = mb_detect_encoding($cell, null, true)) { $width += \strlen($cell) - mb_strwidth($cell, $encoding); } $style = $this->getColumnStyle($column); if ($cell instanceof TableSeparator) { return sprintf($style->getBorderFormat(), str_repeat($style->getHorizontalBorderChar(), $width)); } $width += Helper::strlen($cell) - Helper::strlenWithoutDecoration($this->output->getFormatter(), $cell); $content = sprintf($style->getCellRowContentFormat(), $cell); return sprintf($cellFormat, str_pad($content, $width, $style->getPaddingChar(), $style->getPadType())); } /** * Calculate number of columns for this table. */ private function calculateNumberOfColumns() { if (null !== $this->numberOfColumns) { return; } $columns = [0]; foreach (array_merge($this->headers, $this->rows) as $row) { if ($row instanceof TableSeparator) { continue; } $columns[] = $this->getNumberOfColumns($row); } $this->numberOfColumns = max($columns); } private function buildTableRows($rows) { $unmergedRows = []; for ($rowKey = 0; $rowKey < \count($rows); ++$rowKey) { $rows = $this->fillNextRows($rows, $rowKey); // Remove any new line breaks and replace it with a new line foreach ($rows[$rowKey] as $column => $cell) { if (!strstr($cell, "\n")) { continue; } $lines = explode("\n", str_replace("\n", "
\n>", $cell)); foreach ($lines as $lineKey => $line) { if ($cell instanceof TableCell) { $line = new TableCell($line, ['colspan' => $cell->getColspan()]); } if (0 === $lineKey) { $rows[$rowKey][$column] = $line; } else { $unmergedRows[$rowKey][$lineKey][$column] = $line; } } } } $tableRows = []; foreach ($rows as $rowKey => $row) { $tableRows[] = $this->fillCells($row); if (isset($unmergedRows[$rowKey])) { $tableRows = array_merge($tableRows, $unmergedRows[$rowKey]); } } return $tableRows; } /** * fill rows that contains rowspan > 1. * * @param int $line * * @return array * * @throws InvalidArgumentException */ private function fillNextRows(array $rows, $line) { $unmergedRows = []; foreach ($rows[$line] as $column => $cell) { if (null !== $cell && !$cell instanceof TableCell && !is_scalar($cell) && !(\is_object($cell) && method_exists($cell, '__toString'))) { throw new InvalidArgumentException(sprintf('A cell must be a TableCell, a scalar or an object implementing "__toString()", "%s" given.', \gettype($cell))); } if ($cell instanceof TableCell && $cell->getRowspan() > 1) { $nbLines = $cell->getRowspan() - 1; $lines = [$cell]; if (strstr($cell, "\n")) { $lines = explode("\n", str_replace("\n", "
\n>", $cell)); $nbLines = \count($lines) > $nbLines ? substr_count($cell, "\n") : $nbLines; $rows[$line][$column] = new TableCell($lines[0], ['colspan' => $cell->getColspan()]); unset($lines[0]); } // create a two dimensional array (rowspan x colspan) $unmergedRows = array_replace_recursive(array_fill($line + 1, $nbLines, []), $unmergedRows); foreach ($unmergedRows as $unmergedRowKey => $unmergedRow) { $value = isset($lines[$unmergedRowKey - $line]) ? $lines[$unmergedRowKey - $line] : ''; $unmergedRows[$unmergedRowKey][$column] = new TableCell($value, ['colspan' => $cell->getColspan()]); if ($nbLines === $unmergedRowKey - $line) { break; } } } } foreach ($unmergedRows as $unmergedRowKey => $unmergedRow) { // we need to know if $unmergedRow will be merged or inserted into $rows if (isset($rows[$unmergedRowKey]) && \is_array($rows[$unmergedRowKey]) && ($this->getNumberOfColumns($rows[$unmergedRowKey]) + $this->getNumberOfColumns($unmergedRows[$unmergedRowKey]) <= $this->numberOfColumns)) { foreach ($unmergedRow as $cellKey => $cell) { // insert cell into row at cellKey position array_splice($rows[$unmergedRowKey], $cellKey, 0, [$cell]); } } else { $row = $this->copyRow($rows, $unmergedRowKey - 1); foreach ($unmergedRow as $column => $cell) { if (!empty($cell)) { $row[$column] = $unmergedRow[$column]; } } array_splice($rows, $unmergedRowKey, 0, [$row]); } } return $rows; } /** * fill cells for a row that contains colspan > 1. * * @return array */ private function fillCells($row) { $newRow = []; foreach ($row as $column => $cell) { $newRow[] = $cell; if ($cell instanceof TableCell && $cell->getColspan() > 1) { foreach (range($column + 1, $column + $cell->getColspan() - 1) as $position) { // insert empty value at column position $newRow[] = ''; } } } return $newRow ?: $row; } /** * @param int $line * * @return array */ private function copyRow(array $rows, $line) { $row = $rows[$line]; foreach ($row as $cellKey => $cellValue) { $row[$cellKey] = ''; if ($cellValue instanceof TableCell) { $row[$cellKey] = new TableCell('', ['colspan' => $cellValue->getColspan()]); } } return $row; } /** * Gets number of columns by row. * * @return int */ private function getNumberOfColumns(array $row) { $columns = \count($row); foreach ($row as $column) { $columns += $column instanceof TableCell ? ($column->getColspan() - 1) : 0; } return $columns; } /** * Gets list of columns for the given row. * * @return array */ private function getRowColumns(array $row) { $columns = range(0, $this->numberOfColumns - 1); foreach ($row as $cellKey => $cell) { if ($cell instanceof TableCell && $cell->getColspan() > 1) { // exclude grouped columns. $columns = array_diff($columns, range($cellKey + 1, $cellKey + $cell->getColspan() - 1)); } } return $columns; } /** * Calculates columns widths. */ private function calculateColumnsWidth(array $rows) { for ($column = 0; $column < $this->numberOfColumns; ++$column) { $lengths = []; foreach ($rows as $row) { if ($row instanceof TableSeparator) { continue; } foreach ($row as $i => $cell) { if ($cell instanceof TableCell) { $textContent = Helper::removeDecoration($this->output->getFormatter(), $cell); $textLength = Helper::strlen($textContent); if ($textLength > 0) { $contentColumns = str_split($textContent, ceil($textLength / $cell->getColspan())); foreach ($contentColumns as $position => $content) { $row[$i + $position] = $content; } } } } $lengths[] = $this->getCellWidth($row, $column); } $this->effectiveColumnWidths[$column] = max($lengths) + Helper::strlen($this->style->getCellRowContentFormat()) - 2; } } /** * Gets column width. * * @return int */ private function getColumnSeparatorWidth() { return Helper::strlen(sprintf($this->style->getBorderFormat(), $this->style->getVerticalBorderChar())); } /** * Gets cell width. * * @param int $column * * @return int */ private function getCellWidth(array $row, $column) { $cellWidth = 0; if (isset($row[$column])) { $cell = $row[$column]; $cellWidth = Helper::strlenWithoutDecoration($this->output->getFormatter(), $cell); } $columnWidth = isset($this->columnWidths[$column]) ? $this->columnWidths[$column] : 0; return max($cellWidth, $columnWidth); } /** * Called after rendering to cleanup cache data. */ private function cleanup() { $this->effectiveColumnWidths = []; $this->numberOfColumns = null; } private static function initStyles() { $borderless = new TableStyle(); $borderless ->setHorizontalBorderChar('=') ->setVerticalBorderChar(' ') ->setCrossingChar(' ') ; $compact = new TableStyle(); $compact ->setHorizontalBorderChar('') ->setVerticalBorderChar(' ') ->setCrossingChar('') ->setCellRowContentFormat('%s') ; $styleGuide = new TableStyle(); $styleGuide ->setHorizontalBorderChar('-') ->setVerticalBorderChar(' ') ->setCrossingChar(' ') ->setCellHeaderFormat('%s') ; return [ 'default' => new TableStyle(), 'borderless' => $borderless, 'compact' => $compact, 'symfony-style-guide' => $styleGuide, ]; } private function resolveStyle($name) { if ($name instanceof TableStyle) { return $name; } if (isset(self::$styles[$name])) { return self::$styles[$name]; } throw new InvalidArgumentException(sprintf('Style "%s" is not defined.', $name)); } }