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Starbeamrainbowlabs
cd96e43e0f
Disable with readingtime_enabled. Also add new class system-text-insert for all things that appear below a wiki page's title <h1> and the beginning of the body text
71 lines
3 KiB
PHP
71 lines
3 KiB
PHP
<?php
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register_module([
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"name" => "Reading time estimator",
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"version" => "0.1",
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"author" => "Starbeamrainbowlabs",
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"description" => "Displays the approximate reading time for a page beneath it's title.",
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"id" => "feature-readingtime",
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"code" => function() {
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page_renderer::register_part_preprocessor(function(&$parts) {
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global $env, $settings;;
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error_log("[readingtime] part_preprocessor, matching $settings->readingtime_action");
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// Only insert for the view action
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if($env->action !== $settings->readingtime_action || !$settings->readingtime_enabled)
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return;
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error_log("[readingtime] go ahead");
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$reading_time = estimate_reading_time(
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file_get_contents($env->page_filename),
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$settings->readingtime_language
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);
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error_log(var_export($reading_time, true));
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$insert = "<small><em>{$reading_time[0]} - {$reading_time[1]} minute read</em></small>";
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if($reading_time[0] === $reading_time[1])
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$insert = "<small><em>{$reading_time[0]} minute read</em></small>";
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// TODO: Create a canonical way to insert something just below the header - this might be tough though 'cause the that isn't handled by the page_renderer though
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$parts["{content}"] = str_replace("</h1>", "</h1><p class='system-text-insert readingtime-estimate'>$insert</p>", $parts["{content}"]);
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});
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}
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]);
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/**
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* Estimates the reading time for a given lump of text.
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* Ref https://github.com/sbrl/Pepperminty-Wiki/issues/172 (has snippet of
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* original code from Firefox & link to study from which the numbers are
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* taken).
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* @param string $text The text to estimate for.
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* @param string $lang The language code of the text - defaults to "en"
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* @return array An array in the form [ low_time, high_time ] in minutes
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*/
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function estimate_reading_time(string $text, string $lang = "en") : array {
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$chars_count = mb_strlen($text);
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$langs = [
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"en" => (object) [ "cpm" => 987, "variance" => 118 ],
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"ar" => (object) [ "cpm" => 612, "variance" => 88 ],
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"de" => (object) [ "cpm" => 920, "variance" => 86 ],
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"es" => (object) [ "cpm" => 1025, "variance" => 127 ],
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"fi" => (object) [ "cpm" => 1078, "variance" => 121 ],
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"fr" => (object) [ "cpm" => 998, "variance" => 126 ],
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"he" => (object) [ "cpm" => 833, "variance" => 130 ],
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"it" => (object) [ "cpm" => 950, "variance" => 140 ],
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"jw" => (object) [ "cpm" => 357, "variance" => 56 ],
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"nl" => (object) [ "cpm" => 978, "variance" => 143 ],
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"pl" => (object) [ "cpm" => 916, "variance" => 126 ],
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"pt" => (object) [ "cpm" => 913, "variance" => 145 ],
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"ru" => (object) [ "cpm" => 986, "variance" => 175 ],
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"sk" => (object) [ "cpm" => 885, "variance" => 145 ],
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"sv" => (object) [ "cpm" => 917, "variance" => 156 ],
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"tr" => (object) [ "cpm" => 1054, "variance" => 156 ],
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"zh" => (object) [ "cpm" => 255, "variance" => 29 ],
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];
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if(!isset($langs[$lang]))
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return null;
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return [
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ceil($chars_count / ($langs[$lang]->cpm + $langs[$lang]->variance)),
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ceil($chars_count / ($langs[$lang]->cpm - $langs[$lang]->variance))
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];
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}
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