103 lines
2.6 KiB
PHP
103 lines
2.6 KiB
PHP
<?php
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namespace RtfHtmlPhp;
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class Group extends Element
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{
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public $parent;
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public $children;
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/**
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* Create a new Group, with no parent and no children.
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*/
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public function __construct()
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{
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$this->parent = null;
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$this->children = [];
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}
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/**
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* Returns group type
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*
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* @return string|null
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*/
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public function getType()
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{
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// No children? Then the group type is null.
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if (count($this->children) == 0) {
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return null;
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}
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$child = $this->children[0];
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// If the first child is a control word, then
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// the group type is the word.
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if ($child instanceof ControlWord) {
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return $child->word;
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}
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// If the first child is a control symbol, then
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// the group type is * for a special symbol, or null.
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if ($child instanceof ControlSymbol) {
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return ($child->symbol == '*') ? '*' : null;
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}
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// If first child is neither word nor symbol, then
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// group type is null.
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return null;
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}
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/**
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* If a group contains a '*' symbol as its first child,
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* then it is a destination group.
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*
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* @return bool|null Group destination
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*/
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public function isDestination()
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{
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// If group has no children, then destination is null.
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if (count($this->children) == 0) {
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return null;
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}
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$child = $this->children[0];
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// First child not a control symbol?
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if (!$child instanceof ControlSymbol) {
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return null;
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}
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return $child->symbol == '*';
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}
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/**
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* Returns string representation of the object for debug purposes
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*
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* @param int $level Indentation level
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*
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* @return string
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*/
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public function toString($level = 0)
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{
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$str = str_repeat(" ", $level) . "{\n";
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foreach ($this->children as $child) {
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/*
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// Skip some group types:
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if ($child instanceof Group) {
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if ($child->GetType() == "fonttbl") continue;
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if ($child->GetType() == "colortbl") continue;
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if ($child->GetType() == "stylesheet") continue;
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if ($child->GetType() == "info") continue;
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// Skip any pictures:
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if (substr($child->GetType(), 0, 4) == "pict") continue;
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if ($child->IsDestination()) continue;
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}
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*/
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$str .= $child->toString($level + 1);
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}
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return $str . str_repeat(" ", $level) . "}\n";
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}
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}
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