103 lines
2.7 KiB
PHP
103 lines
2.7 KiB
PHP
<?php
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/**
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* Smarty plugin
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* @package Smarty
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* @subpackage plugins
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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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* @link http://smarty.php.net/manual/en/language.function.textformat.php {textformat}
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* (Smarty online manual)
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* @param array
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* <pre>
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* Params: 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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* @param string contents of the block
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* @param Smarty clever simulation of a method
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* @return string string $content re-formatted
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*/
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function smarty_block_textformat($params, $content, &$smarty)
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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)$_val;
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break;
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default:
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$smarty->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][\r\n]!',$content);
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$_output = '';
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for($_x = 0, $_y = count($_paragraphs); $_x < $_y; $_x++) {
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if ($_paragraphs[$_x] == '') {
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continue;
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}
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// convert mult. spaces & special chars to single space
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$_paragraphs[$_x] = preg_replace(array('!\s+!','!(^\s+)|(\s+$)!'), array(' ',''), $_paragraphs[$_x]);
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// indent first line
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if($indent_first > 0) {
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$_paragraphs[$_x] = str_repeat($indent_char, $indent_first) . $_paragraphs[$_x];
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}
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// wordwrap sentences
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$_paragraphs[$_x] = wordwrap($_paragraphs[$_x], $wrap - $indent, $wrap_char, $wrap_cut);
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// indent lines
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if($indent > 0) {
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$_paragraphs[$_x] = preg_replace('!^!m', str_repeat($indent_char, $indent), $_paragraphs[$_x]);
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}
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}
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$_output = implode($wrap_char . $wrap_char, $_paragraphs);
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return $assign ? $smarty->assign($assign, $_output) : $_output;
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}
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/* vim: set expandtab: */
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?>
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