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Changed: split the tables used by the search indexer in order to load them on a need-to-use basis and preserve memory

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git-svn-id: file:///svn/phpbb/trunk@6172 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Ludovic Arnaud
2006-07-12 16:29:42 +00:00
parent 9c844b15ce
commit 2cc2509473
22 changed files with 56 additions and 11 deletions
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46
phpBB/develop/generate_utf_tables.php
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@@ -277,6 +277,8 @@ echo "\n*** UTF-8 normalization tables done\n\n";
/**
* Now we'll generate the files needed by the search indexer
*/
echo "Generating search indexer tables\n";
$fp = fopen($phpbb_root_path . 'develop/UnicodeData.txt', 'rt');
$map = array();
@@ -289,9 +291,11 @@ while ($line = fgets($fp, 1024))
$m = explode(';', $line);
/**
* @var integer $cp Current char codepoint
* @var string $utf_char UTF-8 representation of current char
*/
$utf_char = hex_to_utf($m[0]);
$cp = hexdec($m[0]);
$utf_char = cp_to_utf($cp);
/**
* $m[2] holds the "General Category" of the character
@@ -314,21 +318,21 @@ while ($line = fgets($fp, 1024))
* @todo Note that ligatures with combining marks such as U+01E2 are
* not supported at this time
*/
$map[$utf_char] = strtolower($capture[1]);
$map[$cp] = strtolower($capture[1]);
}
elseif (isset($m[13][0]))
{
/**
* If the letter has a lowercased form, use it
*/
$map[$utf_char] = hex_to_utf($m[13]);
$map[$cp] = hex_to_utf($m[13]);
}
else
{
/**
* In all other cases, map the letter to itself
*/
$map[$utf_char] = $utf_char;
$map[$cp] = $utf_char;
}
break;
@@ -336,7 +340,7 @@ while ($line = fgets($fp, 1024))
/**
* We allow all marks, they are mapped to themselves
*/
$map[$utf_char] = $utf_char;
$map[$cp] = $utf_char;
break;
case 'N':
@@ -348,7 +352,7 @@ while ($line = fgets($fp, 1024))
* like "1/2", with a slash. However, "1/2" entered in ASCII is converted
* to "1 2". This will have to be fixed.
*/
$map[$utf_char] = (isset($m[8][0])) ? $m[8] : $utf_char;
$map[$cp] = (isset($m[8][0])) ? $m[8] : $utf_char;
break;
default:
@@ -369,11 +373,33 @@ $cheats = array(
'00F6' => 'oe', # Small O with diaeresis
);
echo count($map);
/**
* Add our "cheat replacements" to the map
*/
foreach ($cheats as $hex => $map_to)
{
$map[hexdec($hex)] = $map_to;
}
/**
* Split the map into smaller blocks
*/
$file_contents = array();
foreach ($map as $cp => $map_to)
{
$file_contents[$cp >> 11][cp_to_utf($cp)] = $map_to;
}
unset($map);
foreach ($file_contents as $idx => $contents)
{
echo "Writing to search_indexer_$idx.$phpEx\n";
$fp = fopen($phpbb_root_path . 'includes/utf/data/search_indexer_' . $idx . '.' . $phpEx, 'wb');
fwrite($fp, '<?php return ' . my_var_export($contents) . ';');
fclose($fp);
}
echo "\n*** Search indexer tables done\n\n";
$fp = fopen($phpbb_root_path . 'includes/utf/data/search_indexer.php', 'wb');
fwrite($fp, '<?php return ' . my_var_export($map) . ';');
fclose($fp);
die("\nAll done!\n");