scummvm-web/include/Objects/FaqEntry.php

<?php
namespace ScummVM\Objects;

/**
 * The FaqEntry class represents a question-answer pair on the website
 * F.A.Q. page.
 */
class FaqEntry extends BasicObject
{
    private $hrefs;
    private $question;
    private $answer;
    private $xref;

    /**
     * FaqEntry object constructor.
     *
     * @param array $data           list containing all qaentry data
     * @param int   $section_number the section this entry belongs too
     * @param int   $entry_number   part of the href value incase it's not set
     * @param array $xref           reference to xref map
     */
    public function __construct($data, $section_number, $entry_number, &$xref)
    {
        parent::__construct($data);
        $this->hrefs = array();
        if (! empty($data['href'])) {
            array_push($this->hrefs, $data['href']);
            $xref[$data['href']] = $data['question'];
        }
        array_push($this->hrefs, "{$section_number}_{$entry_number}");

        $this->question = $data['question'];
        $this->answer = $data['answer'];
        /* Save a reference to the xref table for later use. */
        $this->xref = &$xref;
    }

    /* Get the primary anchor name for this entry. */
    public function getHref()
    {
        return $this->hrefs[0];
    }

    /* Get all anchor names for this entry. */
    public function getHrefs()
    {
        return $this->hrefs;
    }

    /* Get the question for this entry. */
    public function getQuestion()
    {
        return $this->question;
    }

    /* Get the answer for this entry. */
    public function getAnswer()
    {
        $answer = &$this->answer;
        $xref = &$this->xref;
        /* If we find a xref we need to make the final conversion to HTML. */
        if (strpos($answer, '<a xref') !== false) {
            /**
             * For each entry in our xref lookup table we need to build a list
             * of patterns that match the xrefs. We also need to build a list
             * with replacements for the xrefs. Only generate the lists once.
             */
            if (!isset($xref['pattern']) || !isset($xref['replace'])) {
                $pattern = array();
                $replace = array();
                foreach ($this->xref as $anchor => $text) {
                    $xref['pattern'][] = "/<a xref=\"{$anchor}\"><\/a>/";
                    $xref['replace'][] = "<a href=\"faq/#{$anchor}\">{$text}</a>";
                }
            }
            $answer = preg_replace($xref['pattern'], $xref['replace'], $answer);
        }
        return $this->answer;
    }
}