晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : //home/akaindir/public_html/crm/libraries/Smarty/libs/plugins/block.textformat.php
<?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);
    $_output = '';


    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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