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Move into nested docroot

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Rob Davies 2017-02-13 15:31:17 +00:00
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commit c8b70abde9
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web/core/modules/text/text.module Normal file
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<?php
/**
* @file
* Defines simple text field types.
*/
use Drupal\Component\Utility\Html;
use Drupal\Component\Utility\Unicode;
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\filter\Entity\FilterFormat;
/**
* Implements hook_help().
*/
function text_help($route_name, RouteMatchInterface $route_match) {
switch ($route_name) {
case 'help.page.text':
$output = '';
$output .= '<h3>' . t('About') . '</h3>';
$output .= '<p>' . t('The Text module allows you to create short and long text fields with optional summaries. See the <a href=":field">Field module help</a> and the <a href=":field_ui">Field UI help</a> pages for general information on fields and how to create and manage them. For more information, see the <a href=":text_documentation">online documentation for the Text module</a>.', array(':field' => \Drupal::url('help.page', array('name' => 'field')), ':field_ui' => (\Drupal::moduleHandler()->moduleExists('field_ui')) ? \Drupal::url('help.page', array('name' => 'field_ui')) : '#', ':text_documentation' => 'https://www.drupal.org/documentation/modules/text')) . '</p>';
$output .= '<h3>' . t('Uses') . '</h3>';
$output .= '<dl>';
$output .= '<dt>' . t('Managing and displaying text fields') . '</dt>';
$output .= '<dd>' . t('The <em>settings</em> and <em>display</em> of the text field can be configured separately. See the <a href=":field_ui">Field UI help</a> for more information on how to manage fields and their display.', array(':field_ui' => (\Drupal::moduleHandler()->moduleExists('field_ui')) ? \Drupal::url('help.page', array('name' => 'field_ui')) : '#')) . '</dd>';
$output .= '<dt>' . t('Creating short text fields') . '</dt>';
$output .= '<dd>' . t('If you choose <em>Text (plain)</em> or <em>Text (formatted)</em> as the field type on the <em>Manage fields</em> page, then a field with a single row is displayed. You can change the maximum text length in the <em>Field settings</em> when you set up the field.') . '</dd>';
$output .= '<dt>' . t('Creating long text fields') . '</dt>';
$output .= '<dd>' . t('If you choose <em>Text (plain, long)</em>, <em>Text (formatted, long)</em>, or <em>Text (formatted, long, with summary)</em> on the <em>Manage fields</em> page, then users can insert text of unlimited length. On the <em>Manage form display</em> page, you can set the number of rows that are displayed to users.') . '</dd>';
$output .= '<dt>' . t('Trimming the text length') . '</dt>';
$output .= '<dd>' . t('On the <em>Manage display</em> page you can choose to display a trimmed version of the text, and if so, where to cut off the text.') . '</dd>';
$output .= '<dt>' . t('Displaying summaries instead of trimmed text') . '</dt>';
$output .= '<dd>' . t('As an alternative to using a trimmed version of the text, you can enter a separate summary by choosing the <em>Text (formatted, long, with summary)</em> field type on the <em>Manage fields</em> page. Even when <em>Summary input</em> is enabled, and summaries are provided, you can display <em>trimmed</em> text nonetheless by choosing the appropriate format on the <em>Manage display</em> page.') . '</dd>';
$output .= '<dt>' . t('Using text formats and editors') . '</dt>';
$output .= '<dd>' . t('If you choose <em>Text (plain)</em> or <em>Text (plain, long)</em> you restrict the input to <em>Plain text</em> only. If you choose <em>Text (formatted)</em>, <em>Text (formatted, long)</em>, or <em>Text (formatted, long with summary)</em> you allow users to write formatted text. Which options are available to individual users depends on the settings on the <a href=":formats">Text formats and editors page</a>.', array(':formats' => \Drupal::url('filter.admin_overview'))) . '</dd>';
$output .= '</dl>';
return $output;
}
}
/**
* Generates a trimmed, formatted version of a text field value.
*
* If the end of the summary is not indicated using the <!--break--> delimiter
* then we generate the summary automatically, trying to end it at a sensible
* place such as the end of a paragraph, a line break, or the end of a sentence
* (in that order of preference).
*
* @param $text
* The content for which a summary will be generated.
* @param $format
* The format of the content. If the line break filter is present then we
* treat newlines embedded in $text as line breaks. If the htmlcorrector
* filter is present, it will be run on the generated summary (if different
* from the incoming $text).
* @param $size
* The desired character length of the summary. If omitted, the default value
* will be used. Ignored if the special delimiter is present in $text.
*
* @return
* The generated summary.
*/
function text_summary($text, $format = NULL, $size = NULL) {
if (!isset($size)) {
$size = \Drupal::config('text.settings')->get('default_summary_length');
}
// Find where the delimiter is in the body
$delimiter = strpos($text, '<!--break-->');
// If the size is zero, and there is no delimiter, the entire body is the summary.
if ($size == 0 && $delimiter === FALSE) {
return $text;
}
// If a valid delimiter has been specified, use it to chop off the summary.
if ($delimiter !== FALSE) {
return substr($text, 0, $delimiter);
}
// Retrieve the filters of the specified text format, if any.
if (isset($format)) {
$filters = FilterFormat::load($format)->filters();
// If the specified format does not exist, return nothing. $text is already
// filtered text, but the remainder of this function will not be able to
// ensure a sane and secure summary.
if (!$filters) {
return '';
}
}
// If we have a short body, the entire body is the summary.
if (Unicode::strlen($text) <= $size) {
return $text;
}
// If the delimiter has not been specified, try to split at paragraph or
// sentence boundaries.
// The summary may not be longer than maximum length specified. Initial slice.
$summary = Unicode::truncate($text, $size);
// Store the actual length of the UTF8 string -- which might not be the same
// as $size.
$max_rpos = strlen($summary);
// How much to cut off the end of the summary so that it doesn't end in the
// middle of a paragraph, sentence, or word.
// Initialize it to maximum in order to find the minimum.
$min_rpos = $max_rpos;
// Store the reverse of the summary. We use strpos on the reversed needle and
// haystack for speed and convenience.
$reversed = strrev($summary);
// Build an array of arrays of break points grouped by preference.
$break_points = array();
// A paragraph near the end of sliced summary is most preferable.
$break_points[] = array('</p>' => 0);
// If no complete paragraph then treat line breaks as paragraphs.
$line_breaks = array('<br />' => 6, '<br>' => 4);
// Newline only indicates a line break if line break converter
// filter is present.
if (isset($format) && $filters->has('filter_autop') && $filters->get('filter_autop')->status) {
$line_breaks["\n"] = 1;
}
$break_points[] = $line_breaks;
// If the first paragraph is too long, split at the end of a sentence.
$break_points[] = array('. ' => 1, '! ' => 1, '? ' => 1, '。' => 0, '؟ ' => 1);
// Iterate over the groups of break points until a break point is found.
foreach ($break_points as $points) {
// Look for each break point, starting at the end of the summary.
foreach ($points as $point => $offset) {
// The summary is already reversed, but the break point isn't.
$rpos = strpos($reversed, strrev($point));
if ($rpos !== FALSE) {
$min_rpos = min($rpos + $offset, $min_rpos);
}
}
// If a break point was found in this group, slice and stop searching.
if ($min_rpos !== $max_rpos) {
// Don't slice with length 0. Length must be <0 to slice from RHS.
$summary = ($min_rpos === 0) ? $summary : substr($summary, 0, 0 - $min_rpos);
break;
}
}
// If the htmlcorrector filter is present, apply it to the generated summary.
if (isset($format) && $filters->has('filter_htmlcorrector') && $filters->get('filter_htmlcorrector')->status) {
$summary = Html::normalize($summary);
}
return $summary;
}