function get_sections($lines, $page, $options)
{
$toc = new PluginSonotsToc($page, $options['cache']);
$headlines = $toc->get_headlines();
if (isset($options['filter'])) {
sonots::grep_by($headlines, 'string', 'preg', '/' . str_replace('/', '\\/', $options['filter']) . '/');
}
if (isset($options['except'])) {
sonots::grep_by($headlines, 'string', 'preg', '/' . str_replace('/', '\\/', $options['except']) . '/', TRUE);
// inverse
}
if (is_array($options['depth'])) {
// Do not use negative offsets
list($min, $max) = PluginSonotsOption::conv_interval($options['depth'], array(1, PHP_INT_MAX));
sonots::grep_by($headlines, 'depth', 'ge', $min);
sonots::grep_by($headlines, 'depth', 'le', $max);
}
$outlines = array();
if (is_array($options['num'])) {
array_unshift($headlines, new PluginSonotsHeadline($page, 0, 0, '', ''));
list($offset, $length) = $options['num'];
$headlines = sonots::array_slice($headlines, $offset, $length, true);
}
$linenums = sonots::get_members($headlines, 'linenum');
// extract from current head till next head - 1
$allheadlines = $toc->get_headlines();
$alllinenums = sonots::get_members($allheadlines, 'linenum');
if (!isset($alllinenums[0])) {
array_unshift($alllinenums, 0);
}
// virtual head at the file head
array_push($alllinenums, end(array_keys($lines)) + 1);
// virtual head at the file tail
$outlines = array();
$current = 0;
foreach ($alllinenums as $next) {
if (in_array($current, $linenums)) {
if ($next == $current) {
continue;
}
$outlines += sonots::array_slice($lines, $current, $next - $current, true);
}
$current = $next;
}
return $outlines;
}
/**
* Display Table of Contents
*
* @access static
* @param string $page
* @param array $options
* @return string html
*/
function display_toc($page, $options)
{
$toc = new PluginSonotsToc($page, $options['cache']);
if ($options['include']) {
$toc->expand_includes();
}
$headlines = $toc->get_headlines();
if ($options['fromhere']) {
$fromhere = $toc->get_fromhere();
$offset = 0;
$headline = reset($headlines);
while (!($headline->page === $page && $headline->linenum > $fromhere)) {
++$offset;
if (($headline = next($headlines)) === false) {
break;
}
}
$headlines = sonots::array_slice($headlines, $offset, null, true);
}
if (isset($options['filter'])) {
sonots::grep_by($headlines, 'string', 'preg', '/' . str_replace('/', '\\/', $options['filter']) . '/');
}
if (isset($options['except'])) {
sonots::grep_by($headlines, 'string', 'preg', '/' . str_replace('/', '\\/', $options['except']) . '/', true);
// inverse
}
if (is_array($options['depth'])) {
// Do not use negative offsets
list($min, $max) = PluginSonotsOption::conv_interval($options['depth'], array(1, PHP_INT_MAX));
sonots::grep_by($headlines, 'depth', 'ge', $min);
sonots::grep_by($headlines, 'depth', 'le', $max);
}
if (is_array($options['num'])) {
list($offset, $length) = $options['num'];
$headlines = sonots::array_slice($headlines, $offset, $length, true);
}
if ($options['hierarchy']) {
if ($options['include'] && count($toc->get_includes()) >= 1) {
// depth of included page is 0, shift up
sonots::map_members($headlines, 'depth', create_function('$x', 'return $x+1;'));
}
if ($options['compact']) {
PluginSonotsToc::compact_depth($headlines);
}
} else {
sonots::init_members($headlines, 'depth', 1);
// flatten (to all 1)
}
$html = PluginSonotsToc::display_toc($headlines, 'contentsx', $options['link']);
return $html;
}
/**
* Grep out metapages by speific fields
*
* @access public
* @param string $meta name of meta information to be greped
* @param string $func func name
* - preg : grep by preg
* - ereg : grep by ereg
* - mb_ereg : grep by mb_ereg
* - prefix : remains if prefix matches (strpos)
* - mb_prefix: (mb_strpos)
* - eq : remains if equality holds
* - ge : remains if greater or equal to
* - le : remains if less or equal to
* @param mixed $pattern
* @param boolean $inverse grep -v
* @return void
* @version $Id: v 1.0 2008-06-07 07:23:17Z sonots $
*/
function grep_by($meta, $func, $pattern, $inverse = FALSE)
{
sonots::grep_by($this->metapages, $meta, $func, $pattern, $inverse);
}
