mirror of https://github.com/friendica/friendica
113 lines
3.2 KiB
PHP
113 lines
3.2 KiB
PHP
<?php
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/**
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* Smarty plugin to format text blocks
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*
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* @package Smarty
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* @subpackage PluginsBlock
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*/
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/**
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* Smarty {textformat}{/textformat} block plugin
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*
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* Type: block function<br>
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* Name: textformat<br>
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* Purpose: format text a certain way with preset styles
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* or custom wrap/indent settings<br>
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* Params:
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* <pre>
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* - style - string (email)
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* - indent - integer (0)
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* - wrap - integer (80)
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* - wrap_char - string ("\n")
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* - indent_char - string (" ")
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* - wrap_boundary - boolean (true)
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* </pre>
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*
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* @link http://www.smarty.net/manual/en/language.function.textformat.php {textformat}
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* (Smarty online manual)
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* @param array $params parameters
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* @param string $content contents of the block
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* @param Smarty_Internal_Template $template template object
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* @param boolean &$repeat repeat flag
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* @return string content re-formatted
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* @author Monte Ohrt <monte at ohrt dot com>
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*/
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function smarty_block_textformat($params, $content, $template, &$repeat)
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{
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if (is_null($content)) {
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return;
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}
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$style = null;
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$indent = 0;
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$indent_first = 0;
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$indent_char = ' ';
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$wrap = 80;
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$wrap_char = "\n";
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$wrap_cut = false;
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$assign = null;
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foreach ($params as $_key => $_val) {
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switch ($_key) {
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case 'style':
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case 'indent_char':
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case 'wrap_char':
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case 'assign':
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$$_key = (string)$_val;
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break;
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case 'indent':
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case 'indent_first':
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case 'wrap':
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$$_key = (int)$_val;
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break;
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case 'wrap_cut':
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$$_key = (bool)$_val;
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break;
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default:
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trigger_error("textformat: unknown attribute '$_key'");
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}
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}
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if ($style == 'email') {
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$wrap = 72;
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}
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// split into paragraphs
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$_paragraphs = preg_split('![\r\n]{2}!', $content);
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$_output = '';
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foreach ($_paragraphs as &$_paragraph) {
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if (!$_paragraph) {
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continue;
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}
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// convert mult. spaces & special chars to single space
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$_paragraph = preg_replace(array('!\s+!' . Smarty::$_UTF8_MODIFIER, '!(^\s+)|(\s+$)!' . Smarty::$_UTF8_MODIFIER), array(' ', ''), $_paragraph);
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// indent first line
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if ($indent_first > 0) {
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$_paragraph = str_repeat($indent_char, $indent_first) . $_paragraph;
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}
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// wordwrap sentences
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if (Smarty::$_MBSTRING) {
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require_once(SMARTY_PLUGINS_DIR . 'shared.mb_wordwrap.php');
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$_paragraph = smarty_mb_wordwrap($_paragraph, $wrap - $indent, $wrap_char, $wrap_cut);
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} else {
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$_paragraph = wordwrap($_paragraph, $wrap - $indent, $wrap_char, $wrap_cut);
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}
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// indent lines
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if ($indent > 0) {
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$_paragraph = preg_replace('!^!m', str_repeat($indent_char, $indent), $_paragraph);
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}
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}
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$_output = implode($wrap_char . $wrap_char, $_paragraphs);
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if ($assign) {
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$template->assign($assign, $_output);
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} else {
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return $_output;
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}
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}
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?>
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