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Refactor context highlighter out of context extraction

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Starbeamrainbowlabs 2015-10-31 13:52:50 +00:00
parent 5a3a501c08
commit 77e4cdcc7d
3 changed files with 27 additions and 33 deletions
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28
build/index.php
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@ -1376,6 +1376,7 @@ register_module([
$link = "?page=" . rawurlencode($result["pagename"]);
$pagesource = file_get_contents($result["pagename"] . ".md");
$context = search::extract_context($_GET["query"], $pagesource);
$context = search::highlight_context($_GET["query"], $context);
$content .= "<div>\n";
$content .= " <h2><a href='$link'>" . $result["pagename"] . "</a></h2>\n";
@ -1681,21 +1682,6 @@ class search
// be broken anyway.
$context = self::strip_markup($context);
// Make the matching words bold.
$extraoffset = 0;
foreach($group as $match)
{
$start = $match[1] + $extraoffset;
$length = strlen($match[0]);
$end = $start + $length;
// Insert the end one first to make sure that we don't mess up
// the offsets.
$context = substr_replace($context, "</strong>", $end, 0);
$context = substr_replace($context, "<strong>", $start, 0);
// $extraoffset += strlen("<strong></strong>");
}
$contexts[] = $context;
$basepos = $scanpos + 1;
@ -1703,6 +1689,18 @@ class search
return implode(" ... ", $contexts);
}
public static function highlight_context($query, $context)
{
$qterms = self::tokenize($query);
foreach($qterms as $qterm)
{
$context = preg_replace("/" . preg_quote($qterm) . "/i", "<strong>$0</strong>", $context);
}
return $context;
}
}
/**

2
module_index.json
View file

@ -50,7 +50,7 @@
"author": "Starbeamrainbowlabs",
"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.",
"id": "feature-search",
"lastupdate": 1446117613,
"lastupdate": 1446299530,
"optional": false
},
{

30
modules/feature-search.php
View file

@ -52,6 +52,7 @@ register_module([
$link = "?page=" . rawurlencode($result["pagename"]);
$pagesource = file_get_contents($result["pagename"] . ".md");
$context = search::extract_context($_GET["query"], $pagesource);
$context = search::highlight_context($_GET["query"], $context);
$content .= "<div>\n";
$content .= " <h2><a href='$link'>" . $result["pagename"] . "</a></h2>\n";
@ -357,23 +358,6 @@ class search
// be broken anyway.
$context = self::strip_markup($context);
// Make the matching words bold.
// Fixme Account for the fact that the offsets in $matches[] are relative to the beginning of the document, not the contextual snippet
// Todo Figure out why $extraoffset throws everything off
$extraoffset = 0;
foreach($group as $match)
{
$start = $match[1] + $extraoffset;
$length = strlen($match[0]);
$end = $start + $length;
// Insert the end one first to make sure that we don't mess up
// the offsets.
$context = substr_replace($context, "</strong>", $end, 0);
$context = substr_replace($context, "<strong>", $start, 0);
// $extraoffset += strlen("<strong></strong>");
}
$contexts[] = $context;
$basepos = $scanpos + 1;
@ -381,6 +365,18 @@ class search
return implode(" ... ", $contexts);
}
public static function highlight_context($query, $context)
{
$qterms = self::tokenize($query);
foreach($qterms as $qterm)
{
$context = preg_replace("/" . preg_quote($qterm) . "/i", "<strong>$0</strong>", $context);
}
return $context;
}
}
/**