mirror of
https://github.com/sbrl/Pepperminty-Wiki.git
synced 2024-11-22 04:23:01 +00:00
Begin interface work. Why is the <strong> being inserted into another <strong>???
This commit is contained in:
parent
e016c5f9a7
commit
4157a9fb6c
5 changed files with 374 additions and 16 deletions
204
build/index.php
204
build/index.php
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@ -206,6 +206,16 @@ $settings->mime_extension_mappings_location = "/etc/mime.types";
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$settings->min_preview_size = 1;
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$settings->max_preview_size = 2048;
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// The maximum distance terms should be apart in the context display below
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// search results. This is purely aesthetical - it doesn't affect the search
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// algorithm.
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$settings->search_max_distance_context_display = 100;
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// The number of characters that should be displayed either side of a matching
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// term in the context below each search result.
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$settings->search_characters_context = 200;
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// A string of css to include. Will be included in the <head> of every page
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// inside a <style> tag. This may also be a url - urls will be referenced via a
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// <link rel='stylesheet' /> tag.
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@ -1345,9 +1355,40 @@ register_module([
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global $settings;
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if(!isset($_GET["query"]))
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exit(page_renderer::render("No Search Terms - Error - $settings->$sitename", "<p>You didn't specify any search terms. Try typing some into the box above.</p>"));
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exit(page_renderer::render("No Search Terms - Error - $settings->sitename", "<p>You didn't specify any search terms. Try typing some into the box above.</p>"));
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$search_start = microtime(true);
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$invindex = search::load_invindex("invindex.json");
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$results = search::query_invindex($_GET["query"], $invindex);
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$search_end = microtime(true) - $search_start;
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$title = $_GET["query"] . " - Search results - $settings->sitename";
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$content = "<section>\n";
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$content .= "<h1>Search Results</h1>";
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// todo add a search box here
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foreach($results as $result)
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{
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$link = "?page=" . rawurlencode($result["pagename"]);
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$pagesource = file_get_contents($result["pagename"] . ".md");
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$context = search::extract_context($_GET["query"], $pagesource);
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$content .= "<div>\n";
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$content .= " <h2><a href='$link'>" . $result["pagename"] . "</a></h2>\n";
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$content .= " <p>$context</p>\n";
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$content .= "</div>\n";
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}
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$content .= "</section>\n";
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exit(page_renderer::render($title, $content));
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//header("content-type: text/plain");
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//var_dump($results);
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});
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}
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]);
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@ -1437,6 +1478,11 @@ class search
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return preg_split("/((^\p{P}+)|(\p{P}*\s+\p{P}*)|(\p{P}+$))|\|/", $source, -1, PREG_SPLIT_NO_EMPTY);
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}
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public static function strip_markup($source)
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{
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return str_replace([ "[", "]", "\"", "*", "_", " - ", "`" ], "", $source);
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}
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public static function rebuild_invindex()
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{
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global $pageindex;
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@ -1488,7 +1534,7 @@ class search
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* @summary Reads in and parses an inverted index.
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*/
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// Todo remove this function and make everything streamable
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public static function parse_invindex($invindex_filename) {
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public static function load_invindex($invindex_filename) {
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$invindex = json_decode(file_get_contents($invindex_filename), true);
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return $invindex;
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}
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@ -1524,11 +1570,12 @@ class search
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file_put_contents($filename, json_encode($invindex));
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}
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public static function search_invindex($query, &$invindex)
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public static function query_invindex($query, &$invindex)
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{
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$query_terms = self::tokenize($query);
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$matching_pages = [];
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// Loop over each term in the query and find the matching page entries
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for($i = 0; $i < count($query_terms); $i++)
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{
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$qterm = $query_terms[$i];
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@ -1538,12 +1585,157 @@ class search
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continue;
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// Loop over each page
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foreach($invindex[$qterm] as $page_entry)
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foreach($invindex[$qterm] as $pageid => $page_entry)
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{
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// Create an entry in the matching pages array if it doesn't exist
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if(!isset($matching_pages[$pageid]))
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$matching_pages[$pageid] = [ "nterms" => [] ];
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$matching_pages[$pageid]["nterms"][$qterm] = $page_entry;
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}
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}
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foreach($matching_pages as $pageid => &$pagedata)
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{
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$pagedata["pagename"] = ids::getpagename($pageid);
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$pagedata["rank"] = 0;
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foreach($pagedata["nterms"] as $pterm => $entry)
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{
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$pagedata["rank"] += $entry["freq"];
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// todo rank by context here
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}
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// todo remove items if the rank is below a threshold
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}
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// todo sort by rank here
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uasort($matching_pages, function($a, $b) {
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if($a["rank"] == $b["rank"]) return 0;
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return ($a["rank"] < $b["rank"]) ? +1 : -1;
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});
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return $matching_pages;
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}
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public static function extract_context($query, $source)
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{
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global $settings;
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$nterms = self::tokenize($query);
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$matches = [];
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// Loop over each nterm and find it in the source
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foreach($nterms as $nterm)
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{
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$all_offsets = mb_stripos_all($source, $nterm);
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// Skip over adding matches if there aren't any
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if($all_offsets === false)
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continue;
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foreach($all_offsets as $offset)
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{
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$matches[] = [ $nterm, $offset ];
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}
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}
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usort($matches, function($a, $b) {
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if($a[1] == $b[1]) return 0;
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return ($a[1] < $b[1]) ? +1 : -1;
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});
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$contexts = [];
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$basepos = 0;
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$matches_count = count($matches);
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while($basepos < $matches_count)
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{
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// Store the next match along - all others will be relative to that
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// one
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$group = [$matches[$basepos]];
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// Start scanning at the next one along - we always store the first match
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$scanpos = $basepos + 1;
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$distance = 0;
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while(true)
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{
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// Break out if we reach the end
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if($scanpos >= $matches_count) break;
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// Find the distance between the current one and the last one
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$distance = $matches[$scanpos][1] - $matches[$scanpos - 1][1];
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// Store it if the distance is below the threshold
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if($distance < $settings->search_characters_context)
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$group[] = $matches[$scanpos];
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else
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break;
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$scanpos++;
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}
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$context_start = $group[0][1] - $settings->search_characters_context;
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$context_end = $group[count($group) - 1][1] + $settings->search_characters_context;
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$context = substr($source, $context_start, $context_end - $context_start);
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// Strip the markdown from the context - it's most likely going to
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// be broken anyway.
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$context = self::strip_markup($context);
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// Make the matching words bold.
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$extraoffset = 0;
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foreach($group as $match)
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{
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$start = $match[1] + $extraoffset;
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$length = strlen($match[0]);
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$end = $start + $length;
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// Insert the end one first to make sure that we don't mess up
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// the offsets.
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$context = substr_replace($context, "</strong>", $end, 0);
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$context = substr_replace($context, "<strong>", $start, 0);
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// $extraoffset += strlen("<strong></strong>");
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}
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$contexts[] = $context;
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$basepos = $scanpos + 1;
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}
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return implode(" ... ", $contexts);
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}
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}
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/**
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* mb_stripos all occurences
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* from http://www.pontikis.net/tip/?id=16
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* based on http://www.php.net/manual/en/function.strpos.php#87061
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*
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* Find all occurrences of a needle in a haystack (case-insensitive, UTF8)
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*
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* @param string $haystack
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* @param string $needle
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* @return array or false
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*/
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function mb_stripos_all($haystack, $needle) {
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$s = 0;
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$i = 0;
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while(is_integer($i)) {
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$i = mb_stripos($haystack, $needle, $s);
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if(is_integer($i)) {
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$aStrPos[] = $i;
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$s = $i + mb_strlen($needle);
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}
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}
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if(isset($aStrPos)) {
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return $aStrPos;
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} else {
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return false;
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}
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}
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@ -2821,7 +3013,7 @@ class Slimdown {
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public static $rules = array (
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'/\r\n/' => "\n", // new line normalisation
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'/^(#+)(.*)/' => 'self::header', // headers
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'/(\*)(.*?)\1/' => '<strong>\2</strong>', // bold
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'/(\*+)(.*?)\1/' => '<strong>\2</strong>', // bold
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'/(_)(.*?)\1/' => '<em>\2</em>', // emphasis
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'/!\[(.*)\]\(([^\s]+)\s(\d+.+)\s(left|right)\)/' => '<img src="\2" alt="\1" style="max-width: \3; float: \4;" />', // images with size
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@ -50,7 +50,7 @@
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"author": "Starbeamrainbowlabs",
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"description": "Adds proper search functionality to Pepperminty Wiki. Note that this module, at the moment, just contains test code while I figure out how best to write a search engine.",
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"id": "feature-search",
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"lastupdate": 1446059639,
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"lastupdate": 1446117613,
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"optional": false
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},
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{
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@ -167,7 +167,7 @@
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"author": "Johnny Broadway & Starbeamrainbowlabs",
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"description": "The default parser for Pepperminty Wiki. Based on Johnny Broadway's Slimdown (with more than a few modifications). This parser's features are documented in the help page.",
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"id": "parser-default",
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"lastupdate": 1445170746,
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"lastupdate": 1446116543,
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"optional": false
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},
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{
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@ -31,9 +31,40 @@ register_module([
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global $settings;
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if(!isset($_GET["query"]))
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exit(page_renderer::render("No Search Terms - Error - $settings->$sitename", "<p>You didn't specify any search terms. Try typing some into the box above.</p>"));
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exit(page_renderer::render("No Search Terms - Error - $settings->sitename", "<p>You didn't specify any search terms. Try typing some into the box above.</p>"));
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$search_start = microtime(true);
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$invindex = search::load_invindex("invindex.json");
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$results = search::query_invindex($_GET["query"], $invindex);
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$search_end = microtime(true) - $search_start;
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$title = $_GET["query"] . " - Search results - $settings->sitename";
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$content = "<section>\n";
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$content .= "<h1>Search Results</h1>";
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// todo add a search box here
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foreach($results as $result)
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{
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$link = "?page=" . rawurlencode($result["pagename"]);
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$pagesource = file_get_contents($result["pagename"] . ".md");
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$context = search::extract_context($_GET["query"], $pagesource);
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$content .= "<div>\n";
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$content .= " <h2><a href='$link'>" . $result["pagename"] . "</a></h2>\n";
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$content .= " <p>$context</p>\n";
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$content .= "</div>\n";
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}
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$content .= "</section>\n";
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exit(page_renderer::render($title, $content));
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//header("content-type: text/plain");
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//var_dump($results);
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});
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}
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]);
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@ -123,6 +154,11 @@ class search
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return preg_split("/((^\p{P}+)|(\p{P}*\s+\p{P}*)|(\p{P}+$))|\|/", $source, -1, PREG_SPLIT_NO_EMPTY);
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}
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public static function strip_markup($source)
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{
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return str_replace([ "[", "]", "\"", "*", "_", " - ", "`" ], "", $source);
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}
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public static function rebuild_invindex()
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{
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global $pageindex;
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@ -174,7 +210,7 @@ class search
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* @summary Reads in and parses an inverted index.
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*/
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// Todo remove this function and make everything streamable
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public static function parse_invindex($invindex_filename) {
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public static function load_invindex($invindex_filename) {
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$invindex = json_decode(file_get_contents($invindex_filename), true);
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return $invindex;
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}
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@ -210,7 +246,7 @@ class search
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file_put_contents($filename, json_encode($invindex));
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}
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public static function search_invindex($query, &$invindex)
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public static function query_invindex($query, &$invindex)
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{
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$query_terms = self::tokenize($query);
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$matching_pages = [];
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@ -229,16 +265,17 @@ class search
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{
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// Create an entry in the matching pages array if it doesn't exist
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if(!isset($matching_pages[$pageid]))
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$matching_pages[$pageid] = [];
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$matching_pages[$pageid][$qterm] = $page_entry;
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$matching_pages[$pageid] = [ "nterms" => [] ];
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$matching_pages[$pageid]["nterms"][$qterm] = $page_entry;
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}
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}
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foreach($matching_pages as &$pagedata)
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foreach($matching_pages as $pageid => &$pagedata)
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{
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$pagedata["pagename"] = ids::getpagename($pageid);
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$pagedata["rank"] = 0;
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foreach($pagedata as $pterm => $entry)
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foreach($pagedata["nterms"] as $pterm => $entry)
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{
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$pagedata["rank"] += $entry["freq"];
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@ -256,6 +293,125 @@ class search
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return $matching_pages;
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}
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public static function extract_context($query, $source)
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{
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global $settings;
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$nterms = self::tokenize($query);
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$matches = [];
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// Loop over each nterm and find it in the source
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foreach($nterms as $nterm)
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{
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$all_offsets = mb_stripos_all($source, $nterm);
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// Skip over adding matches if there aren't any
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if($all_offsets === false)
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continue;
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foreach($all_offsets as $offset)
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{
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$matches[] = [ $nterm, $offset ];
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}
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}
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usort($matches, function($a, $b) {
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if($a[1] == $b[1]) return 0;
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return ($a[1] < $b[1]) ? +1 : -1;
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});
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$contexts = [];
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$basepos = 0;
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$matches_count = count($matches);
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while($basepos < $matches_count)
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{
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// Store the next match along - all others will be relative to that
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// one
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$group = [$matches[$basepos]];
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// Start scanning at the next one along - we always store the first match
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$scanpos = $basepos + 1;
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$distance = 0;
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while(true)
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{
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// Break out if we reach the end
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if($scanpos >= $matches_count) break;
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// Find the distance between the current one and the last one
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$distance = $matches[$scanpos][1] - $matches[$scanpos - 1][1];
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// Store it if the distance is below the threshold
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if($distance < $settings->search_characters_context)
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$group[] = $matches[$scanpos];
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else
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break;
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$scanpos++;
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}
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$context_start = $group[0][1] - $settings->search_characters_context;
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$context_end = $group[count($group) - 1][1] + $settings->search_characters_context;
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$context = substr($source, $context_start, $context_end - $context_start);
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// Strip the markdown from the context - it's most likely going to
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// be broken anyway.
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$context = self::strip_markup($context);
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// Make the matching words bold.
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$extraoffset = 0;
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foreach($group as $match)
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{
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$start = $match[1] + $extraoffset;
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$length = strlen($match[0]);
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$end = $start + $length;
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// Insert the end one first to make sure that we don't mess up
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// the offsets.
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$context = substr_replace($context, "</strong>", $end, 0);
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$context = substr_replace($context, "<strong>", $start, 0);
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// $extraoffset += strlen("<strong></strong>");
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}
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$contexts[] = $context;
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$basepos = $scanpos + 1;
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}
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return implode(" ... ", $contexts);
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}
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}
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/**
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* mb_stripos all occurences
|
||||
* from http://www.pontikis.net/tip/?id=16
|
||||
* based on http://www.php.net/manual/en/function.strpos.php#87061
|
||||
*
|
||||
* Find all occurrences of a needle in a haystack (case-insensitive, UTF8)
|
||||
*
|
||||
* @param string $haystack
|
||||
* @param string $needle
|
||||
* @return array or false
|
||||
*/
|
||||
function mb_stripos_all($haystack, $needle) {
|
||||
|
||||
$s = 0;
|
||||
$i = 0;
|
||||
|
||||
while(is_integer($i)) {
|
||||
|
||||
$i = mb_stripos($haystack, $needle, $s);
|
||||
|
||||
if(is_integer($i)) {
|
||||
$aStrPos[] = $i;
|
||||
$s = $i + mb_strlen($needle);
|
||||
}
|
||||
}
|
||||
|
||||
if(isset($aStrPos)) {
|
||||
return $aStrPos;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
?>
|
||||
|
|
|
|||
|
|
@ -51,7 +51,7 @@ class Slimdown {
|
|||
public static $rules = array (
|
||||
'/\r\n/' => "\n", // new line normalisation
|
||||
'/^(#+)(.*)/' => 'self::header', // headers
|
||||
'/(\*)(.*?)\1/' => '<strong>\2</strong>', // bold
|
||||
'/(\*+)(.*?)\1/' => '<strong>\2</strong>', // bold
|
||||
'/(_)(.*?)\1/' => '<em>\2</em>', // emphasis
|
||||
|
||||
'/!\[(.*)\]\(([^\s]+)\s(\d+.+)\s(left|right)\)/' => '<img src="\2" alt="\1" style="max-width: \3; float: \4;" />', // images with size
|
||||
|
|
|
|||
|
|
@ -203,6 +203,16 @@ $settings->mime_extension_mappings_location = "/etc/mime.types";
|
|||
$settings->min_preview_size = 1;
|
||||
$settings->max_preview_size = 2048;
|
||||
|
||||
// The maximum distance terms should be apart in the context display below
|
||||
// search results. This is purely aesthetical - it doesn't affect the search
|
||||
// algorithm.
|
||||
$settings->search_max_distance_context_display = 100;
|
||||
|
||||
// The number of characters that should be displayed either side of a matching
|
||||
// term in the context below each search result.
|
||||
$settings->search_characters_context = 200;
|
||||
|
||||
|
||||
// A string of css to include. Will be included in the <head> of every page
|
||||
// inside a <style> tag. This may also be a url - urls will be referenced via a
|
||||
// <link rel='stylesheet' /> tag.
|
||||
|
|
|
|||
Loading…
Reference in a new issue