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