<?php
// $Id$

// 2008-01-20 K.OHWADA
// htmlout.php

// 2008-01-10 K.OHWADA
// is_module_admin_error_reporting_debug_print_backtrace()

// 2007-12-22 K.OHWADA
// BUG: not show  smile icon

// 2007-11-24 K.OHWADA
// analyze_script_type()

// 2007-10-10 K.OHWADA
// add_space_after_punctuation()
// set_empty_if_only_space()

// 2007-09-01 K.OHWADA
// comment for RFC2822

// 2007-08-01 K.OHWADA
// happy_linux/include/sanitize.php
// bool_to_str()
// strip_control_array()

// 2007-07-14 K.OHWADA
// sanitize_var_export()
// check_email_format()

// 2007-05-12 K.OHWADA
// replace_html_amp_space_code_to_space()

// 2007-03-01 K.OHWADA
// add parse_tail_figure()

// 2006-12-10 K.OHWADA
// add split_time_ymd()
// add build_unique_array_without()
// add strip_slashes_array_gpc()

// 2006-11-18 K.OHWADA
// BUG 4378: dont strip slashes in conf_value when magic_quotes_gpc is on
// add init_strings() prepare_array()
// for happy_search
// add implode_array()

// 2006-11-08 K.OHWADA
// add html_specialchars() undo_html_specialchars()

// 2006-10-14 K.OHWADA
// add utf8_urlencode_from_array()

// 2006-10-01 K.OHWADA
// add replace_return_to_space() convert_str_to_crlf()
// add prepare_text()
// add $_flag_remove_control_code
// change build_summary() shorten_text()

// 2006-07-10 K.OHWADA
// this is new file
// porting from rssc_strings.php

//=========================================================
// Happy Linux Framework Module
// 2006-07-10 K.OHWADA
// 有朋自遠方来
//=========================================================

include_once XOOPS_ROOT_PATH.'/modules/happy_linux/include/sanitize.php';
include_once XOOPS_ROOT_PATH.'/modules/happy_linux/include/multibyte.php';
include_once XOOPS_ROOT_PATH.'/modules/happy_linux/include/htmlout.php';

//=========================================================
// class happy_linux_strings
//=========================================================
class happy_linux_strings
{
	var $_MAX_DEPTH = 10;

// local variable
	var $_max_summary  = 100;
	var $_time_start   = 0;
	var $_time_current = 0;
	var $_is_japanese  = false;

// same language match contorl code
// ex) BIG-5 GB2312 餐 C05C B2CD 遊 B943 904A 
	var $_flag_remove_control_code = false;

// allow to remove control code
	var $_ENCODING_ARRAY = array('iso-8859-1', 'utf-8', 'euc-jp');


//---------------------------------------------------------
// constructor
//---------------------------------------------------------
function happy_linux_strings()
{
	$this->init_strings();
}

function &getInstance()
{
	static $instance;
	if (!isset($instance)) 
	{
		$instance = new happy_linux_strings();
	}
	return $instance;
}

//---------------------------------------------------------
// init
//---------------------------------------------------------
function init_strings()
{
	if ( $this->check_in_encoding_array( _CHARSET ) )
	{
		$this->set_flag_remove_control_code( true );
	}
}

function check_in_encoding_array( $encoding )
{
	if ( in_array( strtolower($encoding), $this->_ENCODING_ARRAY ) )
	{ 
		return true;
	}
	return false;
}

//=========================================================
// for object->setVar()
//=========================================================
function prepare_text($str, $not_gpc=false)
{
	if ( $this->_flag_remove_control_code )
	{
		$str = $this->strip_control($str);
		$str = $this->strip_tab($str);
		$str = $this->strip_return($str);
	}
	$str = $this->strip_slashes_gpc_flag($str, $not_gpc);
	$str = $this->replace_javascript($str);
	return $str;
}

function prepare_textarea($str, $not_gpc=false)
{
	if ( $this->_flag_remove_control_code )
	{
		$str = $this->strip_control($str);
	}
	$str = $this->strip_slashes_gpc_flag($str, $not_gpc);
	$str = $this->replace_javascript($str);
	return $str;
}

function prepare_url($str, $not_gpc=false)
{
	if ( $this->_flag_remove_control_code )
	{
		$str = $this->strip_control($str);
		$str = $this->strip_tab($str);
		$str = $this->strip_return($str);
	}
	$str = $this->strip_slashes_gpc_flag($str, $not_gpc);
	$str = $this->deny_javascript($str);
	$str = $this->deny_http_only($str);
	$str = $this->allow_http($str);
	return $str;
}

function &prepare_array($arr, $not_gpc=false)
{
	$str = $this->_prepare_array_recursive(0, $arr, $not_gpc);
	return $str;
}

function _prepare_array_recursive($num, $arr_in, $not_gpc=false)
{
	$num ++;
	if ( $num > $this->_MAX_DEPTH )
	{	return false;	}

	if ( is_array($arr_in) )
	{
		$arr_out = array();
		reset ($arr_in);

		foreach ($arr_in as $k => $v) 
		{
			if ( is_array($v) )
			{
				$arr_out[$k] = $this->_prepare_array_recursive($num, $v, $not_gpc);
			}
			else
			{
				$arr_out[$k] = $this->prepare_text($v, $not_gpc);
			}
		}

		return $arr_out;
	}

	$ret = $this->prepare_text($arr_in, $not_gpc);
	return $ret;
}

//=========================================================
// sanitize strings
//=========================================================
// --------------------------------------------------------
// Convert special characters to HTML entities
//   &  => &amp;
//   <  => &lt;
//   >  => &gt;
//   "  => &quot;
//   '  => &#039;
//
// $flag_amp
//   true:  normal: & => &amp;
//   false: undo htmlentities
//          ex ) &auml; => &amp;auml; => &auml;
// --------------------------------------------------------
function html_specialchars( $str, $flag_amp=true )
{
	if ( is_array($str) )
	{
//		print_r($str);
		return $str;
	}

	$str = htmlspecialchars($str, ENT_QUOTES);

	if ( !$flag_amp )
	{
		$str = happy_linux_undo_html_entity_name( $str );
		$str = happy_linux_undo_html_entity_numeric( $str );
	}

	return $str;
}

// --------------------------------------------------------
// Invert special characters from HTML entities
//   &amp;   =>  &
//   &lt;    =>  <
//   &gt;    =>  >
//   &quot;  =>  "
//   &#39;   =>  '
//   &#039;  =>  '
//   &apos;  =>  ' (xml format)
// --------------------------------------------------------
function undo_html_specialchars( $str )
{
	return happy_linux_undo_htmlspecialchars( $str );
}

// --------------------------------------------------------
// sanitize and convert htmlspecialchars for text
// --------------------------------------------------------
function sanitize_text($str, $flag_java=true, $flag_amp=false)
{
	if ( $this->_flag_remove_control_code )
	{
		$str = $this->strip_control_all($str);
	}
	if ($flag_java)
	{
		$str = $this->replace_javascript($str);
	}
	$str = htmlspecialchars($str, ENT_QUOTES);
	if ( !$flag_amp )
	{
		$str = happy_linux_undo_html_entity_name( $str );
		$str = happy_linux_undo_html_entity_numeric( $str );
	}
	return $str;
}

// --------------------------------------------------------
// sanitize and convert htmlspecialchars for textarea
// --------------------------------------------------------
function sanitize_textarea($str, $flag_java=true, $flag_amp=false)
{
	if ( $this->_flag_remove_control_code )
	{
		$str = $this->strip_control($str);
	}
	if ($flag_java)
	{
		$str = $this->replace_javascript($str);
	}
	$str = htmlspecialchars($str, ENT_QUOTES);
	if ( !$flag_amp )
	{
		$str = happy_linux_undo_html_entity_name( $str );
		$str = happy_linux_undo_html_entity_numeric( $str );
	}
	return $str;
}

//---------------------------------------------------------
// sanitize and convert htmlspecialchars for url
//---------------------------------------------------------
function sanitize_url($str, $flag_java=true, $flag_deny=true, $flag_undo=true)
{
	if ( $this->_flag_remove_control_code )
	{
		$str = $this->strip_control_all($str);
	}
	if ($flag_java)
	{
		$str = $this->replace_javascript($str);
	}
	if ($flag_deny)
	{
		$str = $this->deny_http_only($str);
	}
	if ($flag_undo)
	{
		$str = happy_linux_undo_htmlspecialchars( $str );
	}
	$str = htmlspecialchars($str, ENT_QUOTES);
	return $str;
}

//---------------------------------------------------------
// strip control code 
//---------------------------------------------------------
function strip_control_all($str)
{
	$str = $this->strip_control($str);
	$str = $this->strip_tab($str);
	$str = $this->strip_return($str);
	return $str;
}

//---------------------------------------------------------
// strip control code except TAB, LF, CR
// TAB \x09 \t
// LF  \xOA \n
// CR  \xOD \r
//---------------------------------------------------------
function strip_control($str)
{
	return $this->replace_control($str, '');
}

function replace_control( $str, $replace )
{
	return happy_linux_str_replace_control_code( $str, $replace );
}

// strip TAB code
function strip_tab($str)
{
	return happy_linux_str_replace_tab_code( $str, '' );
}

// strip LF, CR code
function strip_return($str)
{
	return happy_linux_str_replace_return_code( $str, '' );
}

function replace_return_to_space( $str )
{
	return happy_linux_str_replace_return_code( $str, ' ' );
}

function &strip_control_array($arr_in)
{
	$ret = $this->_replace_control_array_recursive(0, $arr_in, '');
	return $ret;
}

function &replace_control_array($arr_in, $replace)
{
	$ret = $this->_replace_control_array_recursive(0, $arr_in, $replace);
	return $ret;
}

function _replace_control_array_recursive($num, $arr_in, $replace)
{
	$num ++;
	if ( $num > $this->_MAX_DEPTH )
	{	return false;	}

	if ( is_array($arr_in) )
	{
		$arr_out = array();
		reset ($arr_in);

		foreach ($arr_in as $k => $v) 
		{
			if ( is_array($v) )
			{
				$arr_out[$k] = $this->_replace_control_array_recursive($num, $v, $replace);
			}
			else
			{
				$arr_out[$k] = $this->replace_control($v, $replace);
			}
		}

		return $arr_out;
	}

	$ret = $this->replace_control($arr_in, $replace);
	return $ret;
}

//---------------------------------------------------------
// strip space code
// SPACE \x20
//---------------------------------------------------------
function strip_space_code($str)
{
	return happy_linux_str_replace_space_code( $str, '' );
}

function strip_html_space_code($str)
{
	return happy_linux_str_replace_html_space_code( $str, '' );
}

function replace_html_amp_space_code_to_space($str)
{
	return preg_replace("/&amp;nbsp;/i", ' ', $str);
}

function replace_space_code_to_single_space($str)
{
	return happy_linux_str_replace_html_space_code( $str, ' ' );
}

function replace_html_space_code_to_space($str)
{
	return happy_linux_str_replace_continuous_space_code( $str, ' ' );
}

//--------------------------------------------------------
// javascript
//--------------------------------------------------------
function replace_javascript($str)
{
	$str = happy_linux_html_replace_javascript( $str );
	$str = happy_linux_html_replace_javascript_colon( $str );
	$str = happy_linux_html_replace_vbscript_colon( $str );
	$str = happy_linux_html_replace_about_colon( $str );
	return $str;
}

// deny_javascript
function deny_javascript($str)
{
	if ( $this->check_javascript($str) )
	{
		return '';
	}
	return $str;
}

// Checks if Javascript are included in string
function check_javascript($str)
{
	$str = $this->strip_control_all( $str );

	if (  happy_linux_html_check_javascript( $str ) )
	{
		return true;	// include JavaScript
	}
	if (  happy_linux_html_check_javascript_colon( $str ) )
	{
		return true;	// include JavaScript
	}
	if ( happy_linux_html_check_vbscript_colon( $str ) )
	{
		return true;	// include vbscript
	}
	if ( happy_linux_html_check_about_colon( $str ) )
	{
		return true;	// include about
	}
	return false;
}

//--------------------------------------------------------
// sanitize array
//--------------------------------------------------------
function &sanitize_array_text($arr_in)
{
	$ret = $this->_sanitize_array_text_recursive(0, $arr_in);
	return $ret;
}

function _sanitize_array_text_recursive($num, $arr_in)
{
	$num ++;
	if ( $num > $this->_MAX_DEPTH )
	{	return false;	}

	if ( is_array($arr_in) )
	{
		$arr_out = array();
		reset ($arr_in);

		foreach ($arr_in as $k => $v) 
		{
			if ( is_array($v) )
			{
				$arr_out[$k] = $this->_sanitize_array_text_recursive($num, $v);
			}
			else
			{
				$arr_out[$k] = $this->sanitize_text($v);
			}
		}

		return $arr_out;
	}

	$ret = $this->sanitize_text($arr_in);
	return $ret;
}

//--------------------------------------------------------
// sanitize for XOOPS object
//--------------------------------------------------------
function sanitize_format($value, $format='s')
{
	$ret = $this->sanitize_format_text($value, $format);
	return $ret;
}

function sanitize_format_text($value, $format='s')
{
	switch (strtolower($format)) 
	{
// strip GPC slashes when set by serVar()
		case 's':
		case 'show':
		case 'p':
		case 'preview':
		case 'f':
		case 'formpreview':
			$value = $this->sanitize_text($value);
			break;

		case 'e':
		case 'edit':
			$value = htmlspecialchars($value, ENT_QUOTES);
			break;

		case 'n':
		case 'none':
		default:
			break;
	}

	return $value;
}

function sanitize_format_textarea($value, $format='s')
{
	switch (strtolower($format)) 
	{
// strip GPC slashes when set by serVar()	
		case 's':
		case 'show':
		case 'p':
		case 'preview':
		case 'f':
		case 'formpreview':
			$value = $this->sanitize_textarea($value);
			break;

		case 'e':
		case 'edit':
			$value = htmlspecialchars($value, ENT_QUOTES);
			break;

		case 'n':
		case 'none':
		default:
			break;
	}

	return $value;
}

function sanitize_format_url($value, $format='s')
{
	switch (strtolower($format)) 
	{
// strip GPC slashes when set by serVar();
		case 's':
		case 'show':
		case 'p':
		case 'preview':
		case 'f':
		case 'formpreview':
			$value = $this->sanitize_url($value);
			break;

		case 'e':
		case 'edit':
			$value = htmlspecialchars($value, ENT_QUOTES);
			break;

		case 'n':
		case 'none':
		default:
			break;
	}

	return $value;
}

function sanitize_format_text_short($value, $format='s', $max=100)
{
	if ($value)
	{
		if ($max)
		{
			$value = $this->shorten_text($value, $max);
		}

		$value = $this->sanitize_format_text($value, $format);
		$value = wordwrap($value);
		$value = '<pre>'.$value.'</pre>'."\n";
	}

	return $value;
}

//--------------------------------------------------------
// get_magic_quotes_gpc
//--------------------------------------------------------
function strip_slashes_gpc_flag($str, $not_gpc=false)
{
	if (!$not_gpc)
	{
		$str = $this->strip_slashes_gpc($str);
	}
	return $str;
}

function strip_slashes_gpc($str)
{
	if ( get_magic_quotes_gpc() && !is_array($str) ) 
	{
		$str = stripslashes($str);
	}
	return $str;
}

function &add_slashes_gpc($str)
{
	if ( !get_magic_quotes_gpc() ) 
	{
		$str = addslashes($str);
	}
	return $str;
}

function &strip_slashes_array_gpc( &$arr_in )
{
	$arr_out =& $arr_in;
	if ( get_magic_quotes_gpc() )
	{
		$arr_out =& $this->strip_slashes_array( $arr_in );
	}
	return $arr_out;
}

function &strip_slashes_array( &$arr_in )
{
	$arr_out = array();
	foreach( $arr_in as $k => $v )
	{
		$val = $v;
		if ( !is_array($v) )
		{
			$val = stripslashes($v);
		}
		$arr_out[$k] = $val;
	}
	return $arr_out;
}

//--------------------------------------------------------
// check url string
//--------------------------------------------------------
function deny_http_only($str)
{
	if ( $this->check_http_only($str) )
	{
		return '';
	}
	return $str;
}

function allow_http($str)
{
	if ( $this->check_http_start($str) )
	{
		return $str;
	}
	return '';
}

// Checks if string is started from HTTP
function check_http_start($str)
{
	if ( preg_match("|^https?://|", $str) )
	{
		return true;	// include HTTP
	}
	return false;
}

// Checks if string is HTTP only
function check_http_only($str)
{
	if ( ($str == 'http://') || ($str == 'https://') )
	{
		return true;	// http only
	}
	return false;
}

function check_http_fill($str)
{
	if ( ($str != '') && ($str != 'http://') && ($str != 'https://') )
	{
		return true;
	}
	return false;
}

//--------------------------------------------------------
// check mail string
// porting from xoopsmailer.php _checkValidEmail() 
// this is not fully based on RFC2822
// RFC2822 Internet Message Format
// http://www.faqs.org/rfcs/rfc2822.html
//--------------------------------------------------------
function check_email_format($str)
{
	if ( preg_match("/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+([\.][a-z0-9-]+)+$/i", $str) )
	{
		return true;
	}
	return false;
}

//=========================================================
// convert strings
//=========================================================
// --------------------------------------------------------
// summary
// --------------------------------------------------------
function build_summary($text, $max, $keyword_array=null, $format='n')
{
	$text = $this->strip_tags_for_text($text);
	$text = $this->shorten_text($text, $max, $keyword_array);
	$text = $this->sanitize_format($text, $format);
	return $text;
}

function strip_tags_for_text($text)
{
	if ( $this->_flag_remove_control_code )
	{
		$text = $this->strip_control_all($text);
	}
	$text = $this->strip_script_tag($text);
	$text = $this->strip_style_tag($text);
	$text = $this->add_space_after_tag($text);
	$text = strip_tags($text);
	$text = $this->strip_space($text);
	$text = $this->set_empty_if_only_space($text);
	return $text;
}

function strip_script_tag($text)
{
	return happy_linux_html_remove_script($text);
}

function strip_style_tag($text)
{
	return happy_linux_html_remove_style($text);
}

function add_space_after_tag($text)
{
	return happy_linux_str_add_space_after_tag($text);
}

function add_space_after_punctuation($text)
{
// BUG: not show smile icon
//	$text = happy_linux_str_add_space_after_punctuation($text);

	if ( $this->_is_japanese )
	{
		$text = happy_linux_str_add_space_after_punctuation_ja($text);
	}
	return $text;
}

function strip_space($str)
{
	if ( $this->_is_japanese )
	{
		$str = $this->convert_space_zen_to_han($str);
	}
	$str = $this->replace_html_space_code_to_space($str);
	$str = $this->replace_space_code_to_single_space($str);
	return $str;
}

function set_empty_if_only_space($str)
{
	return happy_linux_str_set_empty_if_only_space($str);
}

//--------------------------------------------------------
// split_nl
//--------------------------------------------------------
function split_nl($text)
{
	$text = $this->convert_nl($text);
	$text = explode("\n", $text);
	return $text;
}

//--------------------------------------------------------
// convert_nl
//--------------------------------------------------------
function convert_nl($text)
{
	$text = str_replace( "\r\n", "\n", $text ); 
	$text = str_replace( "\n\r", "\n", $text ); 
	$text = str_replace( "\r",   "\n", $text ); 
	return $text;
}

function convert_str_to_crlf($str)
{
	$str = str_replace('\r\n', "\r\n", $str);
	$str = str_replace('\r',   "\r",   $str);
	$str = str_replace('\n',   "\n",   $str);
	return $str;
}

//--------------------------------------------------------
// check valid strings
//--------------------------------------------------------
function check_valid($str)
{
// remove control and space
	if ( $this->_flag_remove_control_code )
	{
		$str = $this->strip_control_all($str);
	}

	$str = $this->strip_space($str);

	if ( strlen($str) > 0 )
	{
		return true;
	}

	return false;
}

// --------------------------------------------------------
// utility for array
// --------------------------------------------------------
function &merge_unique_array($arr1, $arr2)
{
	$arr = false;
	if ( is_array($arr1) && is_array($arr2) )
	{
		$arr = array_merge( $arr1, $arr2 );
		$arr = array_unique( $arr );
	}
	return $arr;
}

function implode_array( $glue, $arr )
{
	$val = false;
	if ( is_array($arr) && count($arr) )
	{
		$val = implode($glue, $arr);
	}
	return $val;
}

function urlencode_from_array( $arr, $glue=' ' )
{
	$val = false;
	if ( is_array($arr) && count($arr) )
	{
		$val = implode($glue, $arr);
		$val = urlencode($val);
	}
	return $val;
}

function &build_unique_array_without( $arr_in, $without=0 )
{
	$arr_out = array();
	$without = intval($without);

	if ( is_array($arr_in) )
	{
		foreach ($arr_in as $int)
		{
			$int = intval($int);
			if ($int != $without)
			{
				$arr_out[] = $int;
			}
		}
	}
	else
	{
		$int = intval($arr_in);
		if ($int != $without)
		{
			$arr_out[] = $int;
		}
	}

	$arr_out = array_unique($arr_out);

	return $arr_out;
}

function sanitize_var_export( &$arr, $flag_sanitize=true )
{
	if ( is_array($arr) )
	{
		$val = var_export($arr, TRUE);
		if ($flag_sanitize)
		{
			$text  = "<pre>";
			$text .= $this->sanitize_text( $val );
			$text .= "</pre>\n";
		}
		else
		{
			$text = $val;
		}
	}
	else
	{
		$text = $this->sanitize_text_by_flag( $arr, $flag_sanitize );
	}
	return $text;
}

function sanitize_text_by_flag( $str, $flag_sanitize=true )
{
	if ($flag_sanitize)
	{
		$text = $this->sanitize_text( $str );
	}
	else
	{
		$text = $str;
	}
	return $text;
}

// --------------------------------------------------------
// convert bool, int to strings
// --------------------------------------------------------
function bool_to_str( $bool )
{
	$str = "false";
	if ( $bool )
	{
		$str = "true";
	}
	return $str;
}

function bool_val( $int )
{
	$bool = false;
	if ( $int )
	{
		$bool = true;
	}
	return $bool;
}

// --------------------------------------------------------
// onvert_array_key_to_string
// array($key => $value)  ==> $key:$value
// --------------------------------------------------------
function convert_array_key_to_string($arr)
{
	if ( (count($arr) == 0) || !is_array($arr) )
	{
		return '';
	}

	$str = '';

	foreach ($arr as $key => $value)
	{
// replace return code
		$value = preg_replace("/\n/", '\\n', $value);

		$str .= $key.":".$value."\n";
	}

	return $str;
}

function convert_string_to_array_key($str, $format='n')
{
	$array = array();

	$line_arr = $this->convert_string_to_array($str, "\n");

	if ( count($line_arr) == 0 )  return $array;

	foreach ($line_arr as $line)
	{
		list($key, $value) = explode(":", $line, 2);

// replace return code
		$value = preg_replace('/\\n/', "\n", $value);

		$array[$key] = $this->make_format($value, $format);
	}

	return $array;
}

//---------------------------------------------------------
// convert array to string
// array($a, $b, $c)  ==> $a & $b & $c
//---------------------------------------------------------
function convert_array_to_string($arr, $pattern='&')
{
	if ( is_array($arr) )
	{
		$str = $pattern;

		foreach ($arr as $value)
		{
			$str .= intval($value).$pattern;
		}
	}
	elseif ( is_int($arr) )
	{
		$str = $pattern.intval($arr).$pattern;
	}
	else
	{
		$str = $arr;
	}

	return $str;
}

function &convert_string_to_array($str, $pattern='&')
{
	$arr = array();

	if ($str === '')  return $arr;

	$str_arr = explode($pattern, $str);

	$i = 0;	
	foreach ($str_arr as $value)
	{
		$value = trim($value);

		if ($value == '')  continue;

		$arr[$i++] = $value;
	}

	return $arr;
}

//-------------------------------------------------------------------
// parse strings
//-------------------------------------------------------------------
function parse_tail_figure( $name )
{
// take out the figure of the tail
	preg_match( '/^(\D+)(\d*)$/', $name, $regs );
	$ext = $regs[2] === '' ? '' : intval( $regs[2] ) ;
	return $ext;
}

//-------------------------------------------------------------------
// time utility
//-------------------------------------------------------------------
function &split_time_ymd($time, $y='Y', $m='n', $d='d', $h='H', $i='i', $s='s')
{
	$year  = date($y, $time);
	$month = date($m, $time);
	$day   = date($d, $time);
	$hour  = date($h, $time);
	$min   = date($i, $time);
	$sec   = date($s, $time);

	$arr = array($year, $month, $day, $hour, $min, $sec);
	return $arr;
}

//---------------------------------------------------------
// analyze_script_type
//
// script:
//   type 0: foo.php
//   type 1: foo.php?
//   type 2: foo.php?bar=abc
//---------------------------------------------------------
function analyze_script_type( $script )
{
	$type = 0;	// foo.php

// set script_type, if ? in script
	if ( preg_match('/\?/', $script) )
	{
		$script_arr = explode('?', $script);
		if ($script_arr[1]) {
			$type = 2;	// foo.php?bar=abc
		} else {
			$type = 1;	// foo.php?
		}
	}

	return $type;
}

function add_script_by_type( $script, $add, $type )
{
	$ret = $script;
	if ($type == 0) {
		$ret = $script."?".$add;
	} elseif ($type == 1) {
		$ret = $script.$add;
	} elseif ($type == 2) {
		$ret = $script."&".$add;
	}
	return $ret;
}

//--------------------------------------------------------
// set parameter
//--------------------------------------------------------
function set_max_summary($value)
{
	$this->_max_summary = intval($value);
}

function set_flag_remove_control_code($val)
{
	$this->_flag_remove_control_code = (bool)$val;
}

function set_is_japanese($val)
{
	$this->_is_japanese = (bool)$val;
}

//========================================================
// multibyte function
//========================================================
function shorten_text($text, $max, $keyword_array=null)
{
// nothing, if zero
	if ($max == 0)
	{
		return '';
	}

// unlimited, if minus
	if ($max < 0)
	{
		return $text;
	}

// less than
	if ( strlen($text) <= $max)
	{
		return $text;
	}

	if ( is_array($keyword_array) )
	{
		$text = happy_linux_build_search_context( $text, $keyword_array, $max );
	}
	else
	{
		$text = happy_linux_strcut( $text, 0, $max )." ...";;
	}

	return $text;
}

function convert_space_zen_to_han($str)
{
	return happy_linux_convert_kana($str, "s");
}

function utf8_urlencode_from_array($arr, $glue=' ' )
{
	$val = false;
	if ( is_array($arr) && count($arr) )
	{
		$val = implode($glue, $arr);
		$val = happy_linux_convert_to_utf8($val);
		$val = urlencode($val);
	}
	return $val;
}

//========================================================
// measure time
// this function is deprecated 
// recommend happy_linux_time
//========================================================
function start_measure_time()
{
	$this->_time_start   = $this->get_microtime();
	$this->_time_current = $this->_time_start;
}

function get_measure_time()
{
	$time = $this->get_microtime() - $this->_time_start;
	return $time;
}

function get_microtime()
{ 
	list($usec, $sec) = explode(" ",microtime()); 
	$time = floatval($sec) + floatval($usec); 
	return $time; 
}

//---------------------------------------------------------
// xoops param
//---------------------------------------------------------
function is_module_admin_error_reporting_debug_print_backtrace()
{
	if ( $this->is_module_admin_error_reporting() && $this->exist_debug_print_backtrace() )
	{
		return true;
	}
	return false;
}

function exist_debug_print_backtrace()
{
	if ( function_exists('debug_print_backtrace') )
	{
		return true;
	}
	return false;
}

function is_module_admin_error_reporting()
{
	if ( $this->is_module_admin() && error_reporting() )
	{
		return true;
	}
	return false;
}

function is_module_admin()
{
	global $xoopsUser, $xoopsModule;
	if ( is_object($xoopsUser) && $xoopsUser->isAdmin( $xoopsModule->mid() )) 
	{
		return true;;
	}
	return false;
}

// --- class end ---
}

?>