function filter_filter_tips
| 6.x filter.module | filter_filter_tips($delta, $format, $long = FALSE) |
Implementation of hook_filter_tips().
File
- drupal-6.x/
modules/ filter/ filter.module, line 171 - Framework for handling filtering of content.
Code
function filter_filter_tips($delta, $format, $long = FALSE) {
global $base_url;
switch ($delta) {
case 0:
if (variable_get("filter_html_$format", FILTER_HTML_STRIP) == FILTER_HTML_STRIP) {
if ($allowed_html = variable_get("allowed_html_$format", '<a> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd>')) {
switch ($long) {
case 0:
return t('Allowed HTML tags: @tags', array('@tags' => $allowed_html));
case 1:
$output = '<p>' . t('Allowed HTML tags: @tags', array('@tags' => $allowed_html)) . '</p>';
if (!variable_get("filter_html_help_$format", 1)) {
return $output;
}
$output .= t('
<p>This site allows HTML content. While learning all of HTML may feel intimidating, learning how to use a very small number of the most basic HTML "tags" is very easy. This table provides examples for each tag that is enabled on this site.</p>
<p>For more information see W3C\'s <a href="http://www.w3.org/TR/html/">HTML Specifications</a> or use your favorite search engine to find other sites that explain HTML.</p>');
$tips = array(
'a' => array(t('Anchors are used to make links to other pages.'), '<a href="' . $base_url . '">' . variable_get('site_name', 'Drupal') . '</a>'),
'br' => array(t('By default line break tags are automatically added, so use this tag to add additional ones. Use of this tag is different because it is not used with an open/close pair like all the others. Use the extra " /" inside the tag to maintain XHTML 1.0 compatibility'), t('Text with <br />line break')),
'p' => array(t('By default paragraph tags are automatically added, so use this tag to add additional ones.'), '<p>' . t('Paragraph one.') . '</p> <p>' . t('Paragraph two.') . '</p>'),
'strong' => array(t('Strong'), '<strong>' . t('Strong') . '</strong>'),
'em' => array(t('Emphasized'), '<em>' . t('Emphasized') . '</em>'),
'cite' => array(t('Cited'), '<cite>' . t('Cited') . '</cite>'),
'code' => array(t('Coded text used to show programming source code'), '<code>' . t('Coded') . '</code>'),
'b' => array(t('Bolded'), '<b>' . t('Bolded') . '</b>'),
'u' => array(t('Underlined'), '<u>' . t('Underlined') . '</u>'),
'i' => array(t('Italicized'), '<i>' . t('Italicized') . '</i>'),
'sup' => array(t('Superscripted'), t('<sup>Super</sup>scripted')),
'sub' => array(t('Subscripted'), t('<sub>Sub</sub>scripted')),
'pre' => array(t('Preformatted'), '<pre>' . t('Preformatted') . '</pre>'),
'abbr' => array(t('Abbreviation'), t('<abbr title="Abbreviation">Abbrev.</abbr>')),
'acronym' => array(t('Acronym'), t('<acronym title="Three-Letter Acronym">TLA</acronym>')),
'blockquote' => array(t('Block quoted'), '<blockquote>' . t('Block quoted') . '</blockquote>'),
'q' => array(t('Quoted inline'), '<q>' . t('Quoted inline') . '</q>'),
// Assumes and describes tr, td, th.
'table' => array(t('Table'), '<table> <tr><th>' . t('Table header') . '</th></tr> <tr><td>' . t('Table cell') . '</td></tr> </table>'),
'tr' => NULL, 'td' => NULL, 'th' => NULL,
'del' => array(t('Deleted'), '<del>' . t('Deleted') . '</del>'),
'ins' => array(t('Inserted'), '<ins>' . t('Inserted') . '</ins>'),
// Assumes and describes li.
'ol' => array(t('Ordered list - use the <li> to begin each list item'), '<ol> <li>' . t('First item') . '</li> <li>' . t('Second item') . '</li> </ol>'),
'ul' => array(t('Unordered list - use the <li> to begin each list item'), '<ul> <li>' . t('First item') . '</li> <li>' . t('Second item') . '</li> </ul>'),
'li' => NULL,
// Assumes and describes dt and dd.
'dl' => array(t('Definition lists are similar to other HTML lists. <dl> begins the definition list, <dt> begins the definition term and <dd> begins the definition description.'), '<dl> <dt>' . t('First term') . '</dt> <dd>' . t('First definition') . '</dd> <dt>' . t('Second term') . '</dt> <dd>' . t('Second definition') . '</dd> </dl>'),
'dt' => NULL, 'dd' => NULL,
'h1' => array(t('Header'), '<h1>' . t('Title') . '</h1>'),
'h2' => array(t('Header'), '<h2>' . t('Subtitle') . '</h2>'),
'h3' => array(t('Header'), '<h3>' . t('Subtitle three') . '</h3>'),
'h4' => array(t('Header'), '<h4>' . t('Subtitle four') . '</h4>'),
'h5' => array(t('Header'), '<h5>' . t('Subtitle five') . '</h5>'),
'h6' => array(t('Header'), '<h6>' . t('Subtitle six') . '</h6>')
);
$header = array(t('Tag Description'), t('You Type'), t('You Get'));
preg_match_all('/<([a-z0-9]+)[^a-z0-9]/i', $allowed_html, $out);
foreach ($out[1] as $tag) {
if (array_key_exists($tag, $tips)) {
if ($tips[$tag]) {
$rows[] = array(
array('data' => $tips[$tag][0], 'class' => 'description'),
array('data' => '<code>' . check_plain($tips[$tag][1]) . '</code>', 'class' => 'type'),
array('data' => $tips[$tag][1], 'class' => 'get')
);
}
}
else {
$rows[] = array(
array('data' => t('No help provided for tag %tag.', array('%tag' => $tag)), 'class' => 'description', 'colspan' => 3),
);
}
}
$output .= theme('table', $header, $rows);
$output .= t('
<p>Most unusual characters can be directly entered without any problems.</p>
<p>If you do encounter problems, try using HTML character entities. A common example looks like &amp; for an ampersand & character. For a full list of entities see HTML\'s <a href="http://www.w3.org/TR/html4/sgml/entities.html">entities</a> page. Some of the available characters include:</p>');
$entities = array(
array(t('Ampersand'), '&'),
array(t('Greater than'), '>'),
array(t('Less than'), '<'),
array(t('Quotation mark'), '"'),
);
$header = array(t('Character Description'), t('You Type'), t('You Get'));
unset($rows);
foreach ($entities as $entity) {
$rows[] = array(
array('data' => $entity[0], 'class' => 'description'),
array('data' => '<code>' . check_plain($entity[1]) . '</code>', 'class' => 'type'),
array('data' => $entity[1], 'class' => 'get')
);
}
$output .= theme('table', $header, $rows);
return $output;
}
}
else {
return t('No HTML tags allowed');
}
}
break;
case 1:
switch ($long) {
case 0:
return t('Lines and paragraphs break automatically.');
case 1:
return t('Lines and paragraphs are automatically recognized. The <br /> line break, <p> paragraph and </p> close paragraph tags are inserted automatically. If paragraphs are not recognized simply add a couple blank lines.');
}
break;
case 2:
return t('Web page addresses and e-mail addresses turn into links automatically.');
}
}