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Implement Table
This commit is contained in:
Aidan Woods
parent
0c730e0dc5
commit
b53971e656
221
src/Components/Blocks/Table.php
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221
src/Components/Blocks/Table.php
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<?php
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namespace Erusev\Parsedown\Components\Blocks;
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use Erusev\Parsedown\AST\Handler;
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use Erusev\Parsedown\AST\StateRenderable;
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use Erusev\Parsedown\Components\Block;
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use Erusev\Parsedown\Components\ContinuableBlock;
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use Erusev\Parsedown\Html\Renderables\Element;
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use Erusev\Parsedown\Parsedown;
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use Erusev\Parsedown\Parsing\Context;
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use Erusev\Parsedown\State;
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/**
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* @psalm-type _Alignment='left'|'center'|'right'
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*/
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final class Table implements ContinuableBlock
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{
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use ContinuableBlockDefaultInterrupt, BlockAcquisition;
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/** @var array<int, _Alignment|null> */
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private $alignments;
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/** @var array<int, string> */
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private $headerCells;
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/** @var array<int, array<int, string>> */
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private $rows;
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/**
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* @param array<int, _Alignment|null> $alignments
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* @param array<int, string> $headerCells
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* @param array<int, array<int, string>> $rows
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* @param bool $acquired
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*/
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public function __construct($alignments, $headerCells, $rows, $acquired = false)
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{
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$this->alignments = $alignments;
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$this->headerCells = $headerCells;
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$this->rows = $rows;
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$this->acquired = $acquired;
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}
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/**
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* @param Context $Context
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* @param Block|null $Block
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* @param State|null $State
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* @return static|null
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*/
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public static function build(
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Context $Context,
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Block $Block = null,
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State $State = null
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) {
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if (! isset($Block) or ! $Block instanceof Paragraph or $Context->previousEmptyLines() > 0) {
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return null;
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}
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if (
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\strpos($Block->text(), '|') === false
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and \strpos($Context->line()->text(), '|') === false
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and \strpos($Context->line()->text(), ':') === false
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or \strpos($Block->text(), "\n") !== false
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) {
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return null;
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}
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if (\chop($Context->line()->text(), ' -:|') !== '') {
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return null;
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}
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$alignments = self::parseAlignments($Context->line()->text());
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if (! isset($alignments)) {
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return null;
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}
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# ~
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$headerRow = \trim(\trim($Block->text()), '|');
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$headerCells = \array_map('trim', \explode('|', $headerRow));
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if (\count($headerCells) !== \count($alignments)) {
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return null;
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}
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# ~
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return new self($alignments, $headerCells, [], true);
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}
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/**
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* @param Context $Context
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* @return self|null
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*/
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public function continue(Context $Context)
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{
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if ($Context->previousEmptyLines() > 0) {
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return null;
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}
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if (\count($this->alignments) !== 1 and $Context->line()->text()[0] !== '|' and !\strpos($Context->line()->text(), '|')) {
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return null;
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}
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$Elements = [];
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$row = \trim(\trim($Context->line()->text()), '|');
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if (
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! \preg_match_all('/(?:(\\\\[|])|[^|`]|`[^`]++`|`)++/', $row, $matches)
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or ! isset($matches[0])
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or ! \is_array($matches[0])
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) {
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return null;
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}
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$cells = \array_map('trim', \array_slice($matches[0], 0, \count($this->alignments)));
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return new self(
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$this->alignments,
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$this->headerCells,
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\array_merge($this->rows, [$cells])
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);
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}
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/**
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* @param string $dividerRow
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* @return array<int, _Alignment|null>|null
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*/
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private static function parseAlignments($dividerRow)
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{
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$dividerRow = \trim($dividerRow);
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$dividerRow = \trim($dividerRow, '|');
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$dividerCells = \explode('|', $dividerRow);
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/** @var array<int, _Alignment|null> */
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$alignments = [];
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foreach ($dividerCells as $dividerCell) {
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$dividerCell = \trim($dividerCell);
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if ($dividerCell === '') {
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return null;
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}
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/** @var _Alignment|null */
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$alignment = null;
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if ($dividerCell[0] === ':') {
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$alignment = 'left';
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}
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if (\substr($dividerCell, - 1) === ':') {
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$alignment = $alignment === 'left' ? 'center' : 'right';
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}
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$alignments []= $alignment;
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}
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return $alignments;
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}
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/**
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* @return Handler<Element>
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*/
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public function stateRenderable(Parsedown $Parsedown)
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{
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return new Handler(
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/** @return Element */
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function (State $State) use ($Parsedown) {
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return new Element('table', [], [
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new Element('thead', [], [new Element('tr', [], \array_map(
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/**
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* @param string $cell
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* @param _Alignment|null $alignment
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* @return Element
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*/
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function ($cell, $alignment) use ($Parsedown, $State) {
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return new Element(
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'th',
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isset($alignment) ? ['style' => "text-align: $alignment;"] : [],
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$State->applyTo($Parsedown->lineElements($cell))
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);
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},
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$this->headerCells,
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$this->alignments
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))]),
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new Element('tbody', [], \array_map(
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/**
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* @param array<int, string> $cells
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* @return Element
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*/
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function ($cells) use ($Parsedown, $State) {
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return new Element('tr', [], \array_map(
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/**
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* @param string $cell
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* @param _Alignment|null $alignment
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* @return Element
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*/
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function ($cell, $alignment) use ($Parsedown, $State) {
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return new Element(
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'td',
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isset($alignment) ? ['style' => "text-align: $alignment;"] : [],
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$State->applyTo($Parsedown->lineElements($cell))
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);
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},
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$cells,
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\array_slice($this->alignments, 0, \count($cells))
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));
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},
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$this->rows
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))
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]);
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}
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);
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}
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}
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@ -288,173 +288,6 @@ class Parsedown
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return \method_exists($this, 'block' . $Type . 'Complete');
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}
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#
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# Table
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protected function blockTable(Context $Context, array $Block = null)
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{
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if (! isset($Block) or $Block['type'] !== 'Paragraph' or $Context->previousEmptyLines() > 0) {
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return;
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}
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if (
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\strpos($Block['element']['handler']['argument'], '|') === false
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and \strpos($Context->line()->text(), '|') === false
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and \strpos($Context->line()->text(), ':') === false
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or \strpos($Block['element']['handler']['argument'], "\n") !== false
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) {
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return;
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}
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if (\chop($Context->line()->text(), ' -:|') !== '') {
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return;
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}
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$alignments = [];
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$divider = $Context->line()->text();
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$divider = \trim($divider);
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$divider = \trim($divider, '|');
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$dividerCells = \explode('|', $divider);
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foreach ($dividerCells as $dividerCell) {
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$dividerCell = \trim($dividerCell);
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if ($dividerCell === '') {
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return;
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}
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$alignment = null;
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if ($dividerCell[0] === ':') {
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$alignment = 'left';
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}
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if (\substr($dividerCell, - 1) === ':') {
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$alignment = $alignment === 'left' ? 'center' : 'right';
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}
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$alignments []= $alignment;
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}
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# ~
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$HeaderElements = [];
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$header = $Block['element']['handler']['argument'];
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$header = \trim($header);
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$header = \trim($header, '|');
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$headerCells = \explode('|', $header);
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if (\count($headerCells) !== \count($alignments)) {
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return;
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}
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foreach ($headerCells as $index => $headerCell) {
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$headerCell = \trim($headerCell);
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$HeaderElement = [
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'name' => 'th',
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'handler' => [
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'function' => 'lineElements',
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'argument' => $headerCell,
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'destination' => 'elements',
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]
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];
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if (isset($alignments[$index])) {
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$alignment = $alignments[$index];
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$HeaderElement['attributes'] = [
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'style' => "text-align: $alignment;",
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];
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}
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$HeaderElements []= $HeaderElement;
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}
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# ~
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$Block = [
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'alignments' => $alignments,
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'identified' => true,
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'element' => [
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'name' => 'table',
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'elements' => [],
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],
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];
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$Block['element']['elements'] []= [
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'name' => 'thead',
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];
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$Block['element']['elements'] []= [
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'name' => 'tbody',
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'elements' => [],
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];
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$Block['element']['elements'][0]['elements'] []= [
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'name' => 'tr',
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'elements' => $HeaderElements,
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];
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return $Block;
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}
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protected function blockTableContinue(Context $Context, array $Block)
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{
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if ($Context->previousEmptyLines() > 0) {
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return;
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}
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if (\count($Block['alignments']) === 1 or $Context->line()->text()[0] === '|' or \strpos($Context->line()->text(), '|')) {
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$Elements = [];
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$row = $Context->line()->text();
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$row = \trim($row);
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$row = \trim($row, '|');
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\preg_match_all('/(?:(\\\\[|])|[^|`]|`[^`]++`|`)++/', $row, $matches);
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$cells = \array_slice($matches[0], 0, \count($Block['alignments']));
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foreach ($cells as $index => $cell) {
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$cell = \trim($cell);
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$Element = [
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'name' => 'td',
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'handler' => [
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'function' => 'lineElements',
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'argument' => $cell,
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'destination' => 'elements',
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]
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];
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if (isset($Block['alignments'][$index])) {
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$Element['attributes'] = [
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'style' => 'text-align: ' . $Block['alignments'][$index] . ';',
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];
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}
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$Elements []= $Element;
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}
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$Element = [
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'name' => 'tr',
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'elements' => $Elements,
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];
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$Block['element']['elements'][1]['elements'] []= $Element;
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return $Block;
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}
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}
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#
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# ~
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#
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