ThinkPHP/Extend/Vendor/Smarty/plugins/block.textformat.php

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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':