From b0dd10f8171945e0c1f3527dd1e9d18b043e01a7 Mon Sep 17 00:00:00 2001 From: admin Date: Fri, 25 Aug 2006 17:25:49 +0000 Subject: Initial Import --- system/helpers/array_helper.php | 47 ++++ system/helpers/cookie_helper.php | 77 +++++ system/helpers/date_helper.php | 530 +++++++++++++++++++++++++++++++++++ system/helpers/directory_helper.php | 69 +++++ system/helpers/file_helper.php | 139 +++++++++ system/helpers/form_helper.php | 382 +++++++++++++++++++++++++ system/helpers/html_helper.php | 76 +++++ system/helpers/index.html | 15 + system/helpers/security_helper.php | 112 ++++++++ system/helpers/string_helper.php | 154 ++++++++++ system/helpers/text_helper.php | 386 +++++++++++++++++++++++++ system/helpers/typography_helper.php | 490 ++++++++++++++++++++++++++++++++ system/helpers/url_helper.php | 487 ++++++++++++++++++++++++++++++++ system/helpers/xml_helper.php | 55 ++++ 14 files changed, 3019 insertions(+) create mode 100644 system/helpers/array_helper.php create mode 100644 system/helpers/cookie_helper.php create mode 100644 system/helpers/date_helper.php create mode 100644 system/helpers/directory_helper.php create mode 100644 system/helpers/file_helper.php create mode 100644 system/helpers/form_helper.php create mode 100644 system/helpers/html_helper.php create mode 100644 system/helpers/index.html create mode 100644 system/helpers/security_helper.php create mode 100644 system/helpers/string_helper.php create mode 100644 system/helpers/text_helper.php create mode 100644 system/helpers/typography_helper.php create mode 100644 system/helpers/url_helper.php create mode 100644 system/helpers/xml_helper.php (limited to 'system/helpers') diff --git a/system/helpers/array_helper.php b/system/helpers/array_helper.php new file mode 100644 index 000000000..cccde1fc4 --- /dev/null +++ b/system/helpers/array_helper.php @@ -0,0 +1,47 @@ + \ No newline at end of file diff --git a/system/helpers/cookie_helper.php b/system/helpers/cookie_helper.php new file mode 100644 index 000000000..24e243ddd --- /dev/null +++ b/system/helpers/cookie_helper.php @@ -0,0 +1,77 @@ + 0) + { + $expire = time() + $expire; + } + else + { + $expire = 0; + } + } + + setcookie($prefix.$name, $value, $expire, $path, $domain, 0); +} + +?> \ No newline at end of file diff --git a/system/helpers/date_helper.php b/system/helpers/date_helper.php new file mode 100644 index 000000000..2a3d50859 --- /dev/null +++ b/system/helpers/date_helper.php @@ -0,0 +1,530 @@ +config->item('time_reference')) == 'gmt') + { + $now = time(); + $system_time = mktime(gmdate("H", $now), gmdate("i", $now), gmdate("s", $now), gmdate("m", $now), gmdate("d", $now), gmdate("Y", $now)); + + if (strlen($system_time) < 10) + { + $system_time = time(); + log_message('error', 'The Date class could not set a proper GMT timestamp so the local time() value was used.'); + } + + return $system_time; + } + else + { + return time(); + } +} + +// ------------------------------------------------------------------------ + +/** + * Convert MySQL Style Datecodes + * + * This function is identical to PHPs date() function, + * except that it allows date codes to be formatted using + * the MySQL style, where each code letter is preceded + * with a percent sign: %Y %m %d etc... + * + * The benefit of doing dates this way is that you don't + * have to worry about escaping your text letters that + * match the date codes. + * + * @access public + * @param string + * @param integer + * @return integer + */ +function mdate($datestr = '', $time = '') +{ + if ($datestr == '') + return ''; + + if ($time == '') + $time = now(); + + $datestr = str_replace('%\\', '', preg_replace("/([a-z]+?){1}/i", "\\\\\\1", $datestr)); + return date($datestr, $time); +} + +// ------------------------------------------------------------------------ + +/** + * Convert MySQL Style Datecodes + * + * Returns a span of seconds in this format: + * 10 days 14 hours 36 minutes 47 seconds + * + * @access public + * @param integer a number of seconds + * @param integer Unix timestamp + * @return integer + */ +function timespan($seconds = 1, $time = '') +{ + $obj =& get_instance(); + $obj->lang->load('date'); + + if ( ! is_numeric($seconds)) + { + $seconds = 1; + } + + if ( ! is_numeric($time)) + { + $time = time(); + } + + if ($time <= $seconds) + { + $seconds = 1; + } + else + { + $seconds = $time - $seconds; + } + + $str = ''; + $years = floor($seconds / 31536000); + + if ($years > 0) + { + $str .= $years.' '.$obj->lang->line((($years > 1) ? 'date_years' : 'date_year')).', '; + } + + $seconds -= $years * 31536000; + $months = floor($seconds / 2628000); + + if ($years > 0 OR $months > 0) + { + if ($months > 0) + { + $str .= $months.' '.$obj->lang->line((($months > 1) ? 'date_months' : 'date_month')).', '; + } + + $seconds -= $months * 2628000; + } + + $weeks = floor($seconds / 604800); + + if ($years > 0 OR $months > 0 OR $weeks > 0) + { + if ($weeks > 0) + { + $str .= $weeks.' '.$obj->lang->line((($weeks > 1) ? 'date_weeks' : 'date_week')).', '; + } + + $seconds -= $weeks * 604800; + } + + $days = floor($seconds / 86400); + + if ($months > 0 OR $weeks > 0 OR $days > 0) + { + if ($days > 0) + { + $str .= $days.' '.$obj->lang->line((($days > 1) ? 'date_days' : 'date_day')).', '; + } + + $seconds -= $days * 86400; + } + + $hours = floor($seconds / 3600); + + if ($days > 0 OR $hours > 0) + { + if ($hours > 0) + { + $str .= $hours.' '.$obj->lang->line((($hours > 1) ? 'date_hours' : 'date_hour')).', '; + } + + $seconds -= $hours * 3600; + } + + $minutes = floor($seconds / 60); + + if ($days > 0 OR $hours > 0 OR $minutes > 0) + { + if ($minutes > 0) + { + $str .= $minutes.' '.$obj->lang->line((($minutes > 1) ? 'date_minutes' : 'date_minutes')).', '; + } + + $seconds -= $minutes * 60; + } + + if ($str == '') + { + $str .= $seconds.' '.$obj->lang->line((($seconds > 1) ? 'date_seconds' : 'date_second')).', '; + } + + return substr(trim($str), 0, -1); +} + +// ------------------------------------------------------------------------ + +/** + * Number of days in a month + * + * Takes a month/year as input and returns the number of days + * for the given month/year. Takes leap years into consideration. + * + * @access public + * @param integer a numeric month + * @param integer a numeric year + * @return integer + */ +function days_in_month($month = 0, $year = '') +{ + if ($month < 1 OR $month > 12) + { + return 0; + } + + if ( ! ctype_digit($year) OR strlen($year) != 4) + { + $year = date('Y'); + } + + if ($month == 2) + { + if ($year % 400 == 0 OR ($year % 4 == 0 AND $year % 100 != 0)) + { + return 29; + } + } + + $days_in_month = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); + return $days_in_month[$month - 1]; +} + +// ------------------------------------------------------------------------ + +/** + * Converts a local Unix timestamp to GMT + * + * @access public + * @param integer Unix timestamp + * @return integer + */ +function local_to_gmt($time = '') +{ + if ($time == '') + $time = time(); + + return mktime( gmdate("H", $time), gmdate("i", $time), gmdate("s", $time), gmdate("m", $time), gmdate("d", $time), gmdate("Y", $time)); +} + +// ------------------------------------------------------------------------ + +/** + * Converts GMT time to a localized value + * + * Takes a Unix timestamp (in GMT) as input, and returns + * at the local value based on the timezone and DST setting + * submitted + * + * @access public + * @param integer Unix timestamp + * @param string timezone + * @param bool whether DST is active + * @return integer + */ +function gmt_to_local($time = '', $timezone = 'UTC', $dst = FALSE) +{ + if ($time == '') + { + return now(); + } + + $time += timezones($timezone) * 3600; + + if ($dst == TRUE) + { + $time += 3600; + } + + return $time; +} + +// ------------------------------------------------------------------------ + +/** + * Converts a MySQL Timestamp to Unix + * + * @access public + * @param integer Unix timestamp + * @return integer + */ +function mysql_to_unix($time = '') +{ + // We'll remove certain characters for backward compatibility + // since the formatting changed with MySQL 4.1 + // YYYY-MM-DD HH:MM:SS + + $time = str_replace('-', '', $time); + $time = str_replace(':', '', $time); + $time = str_replace(' ', '', $time); + + // YYYYMMDDHHMMSS + return mktime( + substr($time, 8, 2), + substr($time, 10, 2), + substr($time, 12, 2), + substr($time, 4, 2), + substr($time, 6, 2), + substr($time, 0, 4) + ); +} + +// ------------------------------------------------------------------------ + +/** + * Unix to "Human" + * + * Formats Unix timestamp to the following prototype: 2006-08-21 11:35 PM + * + * @access public + * @param integer Unix timestamp + * @param bool whether to show seconds + * @param string format: us or euro + * @return string + */ +function unix_to_human($time = '', $seconds = FALSE, $fmt = 'us') +{ + $r = date('Y', $time).'-'.date('m', $time).'-'.date('d', $time).' '; + + if ($fmt == 'us') + { + $r .= date('h', $time).':'.date('i', $time); + } + else + { + $r .= date('H', $time).':'.date('i', $time); + } + + if ($seconds) + { + $r .= ':'.date('s', $time); + } + + if ($fmt == 'us') + { + $r .= ' '.date('A', $time); + } + + return $r; +} + +// ------------------------------------------------------------------------ + +/** + * Convert "human" date to GMT + * + * Reverses the above process + * + * @access public + * @param string format: us or euro + * @return integer + */ +function human_to_unix($datestr = '') +{ + if ($datestr == '') + { + return FALSE; + } + + $datestr = trim($datestr); + $datestr = preg_replace("/\040+/", "\040", $datestr); + + if ( ! ereg("^[0-9]{2,4}\-[0-9]{1,2}\-[0-9]{1,2}\040[0-9]{1,2}:[0-9]{1,2}.*$", $datestr)) + { + return FALSE; + } + + $split = preg_split("/\040/", $datestr); + + $ex = explode("-", $split['0']); + + $year = (strlen($ex['0']) == 2) ? '20'.$ex['0'] : $ex['0']; + $month = (strlen($ex['1']) == 1) ? '0'.$ex['1'] : $ex['1']; + $day = (strlen($ex['2']) == 1) ? '0'.$ex['2'] : $ex['2']; + + $ex = explode(":", $split['1']); + + $hour = (strlen($ex['0']) == 1) ? '0'.$ex['0'] : $ex['0']; + $min = (strlen($ex['1']) == 1) ? '0'.$ex['1'] : $ex['1']; + + if (isset($ex['2']) AND ereg("[0-9]{1,2}", $ex['2'])) + { + $sec = (strlen($ex['2']) == 1) ? '0'.$ex['2'] : $ex['2']; + } + else + { + // Unless specified, seconds get set to zero. + $sec = '00'; + } + + if (isset($split['2'])) + { + $ampm = strtolower($split['2']); + + if (substr($ampm, 0, 1) == 'p' AND $hour < 12) + $hour = $hour + 12; + + if (substr($ampm, 0, 1) == 'a' AND $hour == 12) + $hour = '00'; + + if (strlen($hour) == 1) + $hour = '0'.$hour; + } + + return mktime($hour, $min, $sec, $month, $day, $year); +} + +// ------------------------------------------------------------------------ + +/** + * Timezone Menu + * + * Generates a drop-down menu of timezones. + * + * @access public + * @param string timezone + * @param string classname + * @param string menu name + * @return string + */ +function timezone_menu($default = 'UTC', $class = "", $name = 'timezones') +{ + $obj =& get_instance(); + $obj->lang->load('date'); + + if ($default == 'GMT') + $default = 'UTC'; + + $menu = '"; + + return $menu; +} + +// ------------------------------------------------------------------------ + +/** + * Timezones + * + * Returns an array of timezones. This is a helper function + * for varios other ones in this library + * + * @access public + * @param string timezone + * @return string + */ +function timezones($tz = '') +{ + // Note: Don't change the order of these even though + // some items appear to be in the wrong order + + $zones = array( + 'UM12' => -12, + 'UM11' => -11, + 'UM10' => -10, + 'UM9' => -9, + 'UM8' => -8, + 'UM7' => -7, + 'UM6' => -6, + 'UM5' => -5, + 'UM4' => -4, + 'UM25' => -2.5, + 'UM3' => -3, + 'UM2' => -2, + 'UM1' => -1, + 'UTC' => 0, + 'UP1' => +1, + 'UP2' => +2, + 'UP3' => +3, + 'UP25' => +2.5, + 'UP4' => +4, + 'UP35' => +3.5, + 'UP5' => +5, + 'UP45' => +4.5, + 'UP6' => +6, + 'UP7' => +7, + 'UP8' => +8, + 'UP9' => +9, + 'UP85' => +8.5, + 'UP10' => +10, + 'UP11' => +11, + 'UP12' => +12 + ); + + if ($tz == '') + { + return $zones; + } + + if ($tz == 'GMT') + $tz = 'UTC'; + + return ( ! isset($zones[$tz])) ? 0 : $zones[$tz]; +} + + +?> \ No newline at end of file diff --git a/system/helpers/directory_helper.php b/system/helpers/directory_helper.php new file mode 100644 index 000000000..69eb13d11 --- /dev/null +++ b/system/helpers/directory_helper.php @@ -0,0 +1,69 @@ + \ No newline at end of file diff --git a/system/helpers/file_helper.php b/system/helpers/file_helper.php new file mode 100644 index 000000000..93bddb029 --- /dev/null +++ b/system/helpers/file_helper.php @@ -0,0 +1,139 @@ + 0) + { + $data = fread($fp, filesize($file)); + } + + flock($fp, LOCK_UN); + fclose($fp); + + return $data; +} + +// ------------------------------------------------------------------------ + +/** + * Write File + * + * Writes data to the file specified in the path. + * Creats a new file if non-existant. + * + * @access public + * @param string path to file + * @param string file data + * @return bool + */ +function write_file($path, $data) +{ + if ( ! $fp = @fopen($path, 'wb')) + { + return FALSE; + } + + flock($fp, LOCK_EX); + fwrite($fp, $data); + flock($fp, LOCK_UN); + fclose($fp); + + return TRUE; +} + +// ------------------------------------------------------------------------ + +/** + * Delete Files + * + * Deletes all files contained in the supplied directory path. + * Files must be writable or owned by the system in order to be deleted. + * If the second parameter is set to TRUE, any direcotries contained + * within the supplied base directory will be nuked as well. + * + * @access public + * @param string path to file + * @param bool whether to delete any directories found in the path + * @return bool + */ +function delete_files($path, $del_dir = FALSE) +{ + // Trim the trailing slahs + $path = preg_replace("|^(.+?)/*$|", "\\1", $path); + + if ( ! $current_dir = @opendir($path)) + return; + + while(FALSE !== ($filename = @readdir($current_dir))) + { + if ($filename != "." and $filename != "..") + { + if (is_dir($path.'/'.$filename)) + { + delete_files($path.'/'.$filename, $del_dir); + } + else + { + unlink($path.'/'.$filename); + } + } + } + @closedir($current_dir); + + if ($del_dir == TRUE) + { + @rmdir($path); + } +} + + +?> \ No newline at end of file diff --git a/system/helpers/form_helper.php b/system/helpers/form_helper.php new file mode 100644 index 000000000..f82ad01a0 --- /dev/null +++ b/system/helpers/form_helper.php @@ -0,0 +1,382 @@ +config->site_url($action).'"'; + + if (is_array($attributes) AND count($attributes) > 0) + { + foreach ($attributes as $key => $val) + { + $form .= ' '.$key.'="'.$val.'"'; + } + } + + $form .= '>'; + + if (is_array($hidden) AND count($hidden > 0)) + { + $form .= form_hidden($hidden); + } + + return $form; +} + +// ------------------------------------------------------------------------ + +/** + * Form Declaration - Multipart type + * + * Creates the opening portion of the form, but with "multipart/form-data". + * + * @access public + * @param string the URI segments of the form destination + * @param array a key/value pair of attributes + * @param array a key/value pair hidden data + * @return string + */ +function form_open_multipart($action, $attributes = array(), $hidden = array()) +{ + $attributes['enctype'] = 'multipart/form-data'; + return form_open($action, $attributes, $hidden); +} + +// ------------------------------------------------------------------------ + +/** + * Hidden Input Field + * + * Generates hidden fields. You can pass a simple key/value string or an associative + * array with multiple values. + * + * @access public + * @param mixed + * @param string + * @return string + */ +function form_hidden($name, $value = '') +{ + if ( ! is_array($name)) + { + return ''; + } + + $form = ''; + foreach ($name as $name => $value) + { + $form .= ''; + } + + return $form; +} + +// ------------------------------------------------------------------------ + +/** + * Text Input Field + * + * @access public + * @param mixed + * @param string + * @param string + * @return string + */ +function form_input($data = '', $value = '', $extra = '') +{ + $defaults = array('type' => 'text', 'name' => (( ! is_array($data)) ? $data : ''), 'value' => $value, 'maxlength' => '500', 'size' => '50'); + + return "\n"; +} + +// ------------------------------------------------------------------------ + +/** + * Password Field + * + * Identical to the input function but adds the "password" type + * + * @access public + * @param mixed + * @param string + * @param string + * @return string + */ +function form_password($data = '', $value = '', $extra = '') +{ + if ( ! is_array($data)) + { + $data = array('name' => $data); + } + + $data['type'] = 'password'; + return form_input($data, $value, $extra); +} + +// ------------------------------------------------------------------------ + +/** + * Upload Field + * + * Identical to the input function but adds the "file" type + * + * @access public + * @param mixed + * @param string + * @param string + * @return string + */ +function form_upload($data = '', $value = '', $extra = '') +{ + if ( ! is_array($data)) + { + $data = array('name' => $data); + } + + $data['type'] = 'file'; + return form_input($data, $value, $extra); +} + +// ------------------------------------------------------------------------ + +/** + * Textarea field + * + * @access public + * @param mixed + * @param string + * @param string + * @return string + */ +function form_textarea($data = '', $value = '', $extra = '') +{ + $defaults = array('name' => (( ! is_array($data)) ? $data : ''), 'cols' => '90', 'rows' => '12'); + + $val = (( ! is_array($data) OR ! isset($data['value'])) ? $value : $data['value']); + + return "\n"; +} + +// ------------------------------------------------------------------------ + +/** + * Dropdown Menu + * + * @access public + * @param string + * @param array + * @param string + * @param string + * @return string + */ +function form_dropdown($name = '', $options = array(), $selected = '', $extra = '') +{ + if ($extra != '') $extra = ' '.$extra; + + $form = ''; + + return $form; +} + +// ------------------------------------------------------------------------ + +/** + * Checkbox Field + * + * @access public + * @param mixed + * @param string + * @param bool + * @param string + * @return string + */ +function form_checkbox($data = '', $value = '', $checked = TRUE, $extra = '') +{ + $defaults = array('type' => 'checkbox', 'name' => (( ! is_array($data)) ? $data : ''), 'value' => $value); + + if (isset($data['checked'])) + { + $checked = $data['checked']; + + if ($checked == FALSE) + unset($data['checked']); + } + + if ($checked == TRUE) + $defaults['checked'] = ' checked="checked"'; + else + unset($defaults['checked']); + + return "\n"; +} + +// ------------------------------------------------------------------------ + +/** + * Radio Button + * + * @access public + * @param mixed + * @param string + * @param bool + * @param string + * @return string + */ +function form_radio($data = '', $value = '', $checked = TRUE, $extra = '') +{ + if ( ! is_array($data)) + { + $data = array('name' => $data); + } + + $data['type'] = 'radio'; + return form_checkbox($data, $value, $checked, $extra); +} + +// ------------------------------------------------------------------------ + +/** + * Submit Button + * + * @access public + * @param mixed + * @param string + * @param string + * @return string + */ +function form_submit($data = '', $value = '', $extra = '') +{ + $defaults = array('type' => 'submit', 'name' => (( ! is_array($data)) ? $data : ''), 'value' => $value); + + return "\n"; +} + +// ------------------------------------------------------------------------ + +/** + * Form Close Tag + * + * @access public + * @param string + * @return string + */ +function form_close($extra = '') +{ + return "\n".$extra; +} + +// ------------------------------------------------------------------------ + +/** + * Form Prep + * + * Formats text so that it can be safely placed in a form field in the event it has HTML tags. + * + * @access public + * @param string + * @return string + */ +function form_prep($str = '') +{ + if ($str == '') + { + return ''; + } + + return str_replace(array("'", '"'), array("'", """), htmlspecialchars($str)); +} + +// ------------------------------------------------------------------------ + +/** + * Parse the form attributes + * + * Helper function used by some of the form helpers + * + * @access private + * @param array + * @parm array + * @return string + */ +function parse_form_attributes($attributes, $default) +{ + if (is_array($attributes)) + { + foreach ($default as $key => $val) + { + if (isset($attributes[$key])) + { + $default[$key] = $attributes[$key]; + unset($attributes[$key]); + } + } + + if (count($attributes) > 0) + { + $default = array_merge($default, $attributes); + } + } + + $att = ''; + foreach ($default as $key => $val) + { + if ($key == 'value') + { + $val = form_prep($val); + } + + $att .= $key . '="' . $val . '" '; + } + + return $att; +} + +?> \ No newline at end of file diff --git a/system/helpers/html_helper.php b/system/helpers/html_helper.php new file mode 100644 index 000000000..1c97dda53 --- /dev/null +++ b/system/helpers/html_helper.php @@ -0,0 +1,76 @@ +".$data.""; +} + +// ------------------------------------------------------------------------ + +/** + * Generates HTML BR tags based on number supplied + * + * @access public + * @param integer + * @return string + */ +function br($num = 1) +{ + return str_repeat("
", $num); +} + +// ------------------------------------------------------------------------ + +/** + * Generates non-breaking space entities based on number supplied + * + * @access public + * @param integer + * @return string + */ +function nbs($num = 1) +{ + return str_repeat(" ", $num); +} + + + +?> \ No newline at end of file diff --git a/system/helpers/index.html b/system/helpers/index.html new file mode 100644 index 000000000..5a1f5d6ae --- /dev/null +++ b/system/helpers/index.html @@ -0,0 +1,15 @@ + + + + +403 Forbidden + + + + + +

Directory access is forbidden.

+ + + + \ No newline at end of file diff --git a/system/helpers/security_helper.php b/system/helpers/security_helper.php new file mode 100644 index 000000000..918e4ae90 --- /dev/null +++ b/system/helpers/security_helper.php @@ -0,0 +1,112 @@ +input->xss_clean($str, $charset); +} + +// -------------------------------------------------------------------- + +/** + * Hash encode a string + * + * @access public + * @param string + * @return string + */ +function hash($str, $type = 'sha1') +{ + if ($type == 'sha1') + { + if ( ! function_exists('sha1')) + { + if ( ! function_exists('mhash')) + { + require_once(BASEPATH.'libraries/Sha1'.EXT); + $SH = new CI_SHA; + return $SH->generate($str); + } + else + { + return bin2hex(mhash(MHASH_SHA1, $str)); + } + } + else + { + return sha1($str); + } + } + else + { + return md5($str); + } +} + +// ------------------------------------------------------------------------ + +/** + * Strip Image Tags + * + * @access public + * @parm string + * @return string + */ +function strip_image_tags($str) +{ + $str = preg_replace("##", "\\1", $str); + $str = preg_replace("##", "\\1", $str); + + return $str; +} + +// ------------------------------------------------------------------------ + +/** + * Convert PHP tags to entities + * + * @access public + * @parm string + * @return string + */ +function encode_php_tags($str) +{ + return str_replace(array(''), array('<?php', '<?PHP', '<?', '?>'), $str); +} + +?> \ No newline at end of file diff --git a/system/helpers/string_helper.php b/system/helpers/string_helper.php new file mode 100644 index 000000000..d5a3591f9 --- /dev/null +++ b/system/helpers/string_helper.php @@ -0,0 +1,154 @@ + \ No newline at end of file diff --git a/system/helpers/text_helper.php b/system/helpers/text_helper.php new file mode 100644 index 000000000..15b5573bf --- /dev/null +++ b/system/helpers/text_helper.php @@ -0,0 +1,386 @@ += $n) + { + return trim($out).$end_char; + } + } +} + +// ------------------------------------------------------------------------ + +/** + * High ASCII to Entities + * + * Converts High ascii text and MS Word special characters to character entities + * + * @access public + * @param string + * @return string + */ +function ascii_to_entities($str) +{ + $count = 1; + $out = ''; + $temp = array(); + + for ($i = 0, $s = strlen($str); $i < $s; $i++) + { + $ordinal = ord($str[$i]); + + if ($ordinal < 128) + { + $out .= $str[$i]; + } + else + { + if (count($temp) == 0) + { + $count = ($ordinal < 224) ? 2 : 3; + } + + $temp[] = $ordinal; + + if (count($temp) == $count) + { + $number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64); + + $out .= '&#'.$number.';'; + $count = 1; + $temp = array(); + } + } + } + + return $out; +} + +// ------------------------------------------------------------------------ + +/** + * Entities to ASCII + * + * Converts character entities back to ASCII + * + * @access public + * @param string + * @param bool + * @return string + */ +function entities_to_ascii($str, $all = TRUE) +{ + if (preg_match_all('/\&#(\d+)\;/', $str, $matches)) + { + for ($i = 0, $s = count($matches['0']); $i < $s; $i++) + { + $digits = $matches['1'][$i]; + + $out = ''; + + if ($digits < 128) + { + $out .= chr($digits); + + } + elseif ($digits < 2048) + { + $out .= chr(192 + (($digits - ($digits % 64)) / 64)); + $out .= chr(128 + ($digits % 64)); + } + else + { + $out .= chr(224 + (($digits - ($digits % 4096)) / 4096)); + $out .= chr(128 + ((($digits % 4096) - ($digits % 64)) / 64)); + $out .= chr(128 + ($digits % 64)); + } + + $str = str_replace($matches['0'][$i], $out, $str); + } + } + + if ($all) + { + $str = str_replace(array("&", "<", ">", """, "'", "-"), + array("&","<",">","\"", "'", "-"), + $str); + } + + return $str; +} + +// ------------------------------------------------------------------------ + +/** + * Word Censoring Function + * + * Supply a string and an array of disallowed words and any + * matched words will be converted to #### or to the replacement + * word you've submitted. + * + * @access public + * @param string the text string + * @param string the array of censoered words + * @param string the optional replacement value + * @return string + */ +function word_censor($str, $censored, $replacement = '') +{ + if ( ! is_array($censored)) + { + return $str; + } + + $str = ' '.$str.' '; + foreach ($censored as $badword) + { + if ($replacement != '') + { + $str = preg_replace("/\b(".str_replace('\*', '\w*?', preg_quote($badword)).")\b/i", $replacement, $str); + } + else + { + $str = preg_replace("/\b(".str_replace('\*', '\w*?', preg_quote($badword)).")\b/ie", "str_repeat('#', strlen('\\1'))", $str); + } + } + + return trim($str); +} + +// ------------------------------------------------------------------------ + +/** + * Code Highlighter + * + * Colorizes code strings + * + * @access public + * @param string the text string + * @return string + */ +function highlight_code($str) +{ + // The highlight string function encodes and highlights + // brackets so we need them to start raw + $str = str_replace(array('<', '>'), array('<', '>'), $str); + + // Replace any existing PHP tags to temporary markers so they don't accidentally + // break the string out of PHP, and thus, thwart the highlighting. + + $str = str_replace(array('<?php', '?>', '\\'), array('phptagopen', 'phptagclose', 'backslashtmp'), $str); + + // The highlight_string function requires that the text be surrounded + // by PHP tags. Since we don't know if A) the submitted text has PHP tags, + // or B) whether the PHP tags enclose the entire string, we will add our + // own PHP tags around the string along with some markers to make replacement easier later + + $str = ''; // '), array(''), $str); + $str = preg_replace('#color="(.*?)"#', 'style="color: \\1"', $str); + } + + // Remove our artificially added PHP + $str = preg_replace("#\.+?//tempstart\
\#is", "\n", $str); + $str = preg_replace("#\.+?//tempstart\
#is", "\n", $str); + $str = preg_replace("#//tempend.+#is", "\n", $str); + + // Replace our markers back to PHP tags. + $str = str_replace(array('phptagopen', 'phptagclose', 'backslashtmp'), array('<?php', '?>', '\\'), $str); //', $tag_close = '') +{ + if ($str == '') + { + return ''; + } + + if ($phrase != '') + { + return preg_replace('/('.preg_quote($phrase).')/i', $tag_open."\\1".$tag_close, $str); + } + + return $str; +} + +// ------------------------------------------------------------------------ + +/** + * Word Wrap + * + * Wraps text at the specified character. Maintains the integrity of words. + * + * @access public + * @param string the text string + * @param integer the number of characters to wrap at + * @return string + */ +function word_wrap($str, $chars = '76') +{ + if ( ! ctype_digit($chars)) + $chars = 76; + + $str = preg_replace("/(\r\n|\r|\n)/", "\n", $str); + $lines = split("\n", $str); + + $output = ""; + while (list(, $thisline) = each($lines)) + { + if (strlen($thisline) > $chars) + { + $line = ""; + $words = split(" ", $thisline); + while(list(, $thisword) = each($words)) + { + while((strlen($thisword)) > $chars) + { + $cur_pos = 0; + for($i=0; $i < $chars - 1; $i++) + { + $output .= $thisword[$i]; + $cur_pos++; + } + + $output .= "\n"; + $thisword = substr($thisword, $cur_pos, (strlen($thisword) - $cur_pos)); + } + + if ((strlen($line) + strlen($thisword)) > $chars) + { + $output .= $line."\n"; + $line = $thisword." "; + } + else + { + $line .= $thisword." "; + } + } + + $output .= $line."\n"; + } + else + { + $output .= $thisline."\n"; + } + } + + return $output; +} + +?> \ No newline at end of file diff --git a/system/helpers/typography_helper.php b/system/helpers/typography_helper.php new file mode 100644 index 000000000..6a5495239 --- /dev/null +++ b/system/helpers/typography_helper.php @@ -0,0 +1,490 @@ +",$str); + $ct = count($ex); + + $newstr = ""; + for ($i = 0; $i < $ct; $i++) + { + if (($i % 2) == 0) + { + $newstr .= nl2br($ex[$i]); + } + else + { + $newstr .= $ex[$i]; + } + + if ($ct - 1 != $i) + $newstr .= "pre>"; + } + + return $newstr; +} + +// ------------------------------------------------------------------------ + +/** + * Auto Typography Wrapper Function + * + * + * @access public + * @parm string + * @return string + */ +function auto_typography($str) +{ + $TYPE = new Auto_typography(); + return $TYPE->convert($str); +} + +// ------------------------------------------------------------------------ + +/** + * Auto Typography Class + * + * + * @access private + * @category Helpers + * @author Rick Ellis + * @author Paul Burdick + * @link http://www.codeigniter.com/user_guide/helpers/ + */ +class Auto_typography { + + // Block level elements that should not be wrapped inside

tags + var $block_elements = 'div|blockquote|pre|code|h\d|script|ol|un'; + + // Elements that should not have

and
tags within them. + var $skip_elements = 'pre|ol|ul'; + + // Tags we want the parser to completely ignore when splitting the string. + var $ignore_elements = 'a|b|i|em|strong|span|img|li'; + + + /** + * Main Processing Function + * + */ + function convert($str) + { + if ($str == '') + { + return ''; + } + + $str = ' '.$str.' '; + + // Standardize Newlines to make matching easier + $str = preg_replace("/(\r\n|\r)/", "\n", $str); + + /* + * Reduce line breaks + * + * If there are more than two consecutive line + * breaks we'll compress them down to a maximum + * of two since there's no benefit to more. + * + */ + $str = preg_replace("/\n\n+/", "\n\n", $str); + + /* + * Convert quotes within tags to tempoarary marker + * + * We don't want quotes converted within + * tags so we'll temporarily convert them to + * {{{DQ}}} and {{{SQ}}} + * + */ + if (preg_match_all("#\<.+?>#si", $str, $matches)) + { + for ($i = 0; $i < count($matches['0']); $i++) + { + $str = str_replace($matches['0'][$i], + str_replace(array("'",'"'), array('{{{SQ}}}', '{{{DQ}}}'), $matches['0'][$i]), + $str); + } + } + + /* + * Convert "ignore" tags to tempoarary marker + * + * The parser splits out the string at every tag + * it encounters. Certain inline tags, like image + * tags, links, span tags, etc. will be adversely + * affected if they are split out so we'll convert + * the opening < temporarily to: {{{tag}}} + * + */ + $str = preg_replace("#<(/*)(".$this->ignore_elements.")#i", "{{{tag}}}\\1\\2", $str); + + /* + * Split the string at every tag + * + * This creates an array with this prototype: + * + * [array] + * { + * [0] = + * [1] = Content contained between the tags + * [2] = + * Etc... + * } + * + */ + $chunks = preg_split('/(<(?:[^<>]+(?:"[^"]*"|\'[^\']*\')?)+>)/', $str, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY); + + /* + * Build our finalized string + * + * We'll cycle through the array, skipping tags, + * and processing the contained text + * + */ + $str = ''; + $process = TRUE; + foreach ($chunks as $chunk) + { + /* + * Are we dealing with a tag? + * + * If so, we'll skip the processing for this cycle. + * Well also set the "process" flag which allows us + * to skip 

 tags and a few other things.
+			 *
+			 */			
+			if (preg_match("#<(/*)(".$this->block_elements.").*?\>#", $chunk, $match)) 
+			{
+				if (preg_match("#".$this->skip_elements."#", $match['2']))
+				{
+					$process =  ($match['1'] == '/') ? TRUE : FALSE;		
+				}
+		
+				$str .= $chunk;
+				continue;
+			}
+		
+			if ($process == FALSE)
+			{
+				$str .= $chunk;
+				continue;
+			}
+			
+			//  Convert Newlines into 
 and 
 tags
+			$str .= $this->format_newlines($chunk);
+		}
+
+		// Convert Quotes and other characters
+		$str = $this->format_characters($str);
+
+		//  We'll swap our temporary markers back and do some clean up.
+		$str = preg_replace('#(
\n*
)#', '', $str);
+		$str = preg_replace('#()
#', "\\1", $str);
+		
+		$str = str_replace(
+							array('
', '
', '{{{tag}}}', '{{{DQ}}}', '{{{SQ}}}'), 
+							array('
', '
', '<', '"', "'"), 
+							$str
+							);
+		
+		return trim($str);
+	}
+	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Format Characters
+	 *
+	 * This function mainly converts double and single quotes
+	 * to entities, but since these are directional, it does
+	 * it based on some rules.  It also converts em-dashes
+	 * and a couple other things.
+	 */
+	function format_characters($str)
+	{	
+		$table = array(
+						' "'		=> " “",
+						'" '		=> "” ",
+						" '"		=> " ‘",
+						"' "		=> "’ ",
+						
+						'>"'		=> ">“",
+						'"<'		=> "”<",
+						">'"		=> ">‘",
+						"'<"		=> "’<",
+
+						"\"."		=> "”.",
+						"\","		=> "”,",
+						"\";"		=> "”;",
+						"\":"		=> "”:",
+						"\"!"		=> "”!",
+						"\"?"		=> "”?",
+						
+						".  "		=> ".  ",
+						"?  "		=> "?  ",
+						"!  "		=> "!  ",
+						":  "		=> ":  ",
+					);
+
+		// These deal with quotes within quotes, like:  "'hi here'"
+		$start = 0;
+		$space = array("\n", "\t", " ");
+		
+		while(TRUE)
+		{
+			$current = strpos(substr($str, $start), "\"'");
+			
+			if ($current === FALSE) break;
+			
+			$one_before = substr($str, $start+$current-1, 1);
+			$one_after = substr($str, $start+$current+2, 1);
+			
+			if ( ! in_array($one_after, $space) && $one_after != "<")
+			{
+				$str = str_replace(	$one_before."\"'".$one_after,
+									$one_before."“‘".$one_after,
+									$str);
+			}
+			elseif ( ! in_array($one_before, $space) && (in_array($one_after, $space) OR $one_after == '<'))
+			{
+				$str = str_replace(	$one_before."\"'".$one_after,
+									$one_before."”’".$one_after,
+									$str);
+			}
+			
+			$start = $start+$current+2;
+		}
+		
+		$start = 0;
+		
+		while(TRUE)
+		{
+			$current = strpos(substr($str, $start), "'\"");
+			
+			if ($current === FALSE) break;
+			
+			$one_before = substr($str, $start+$current-1, 1);
+			$one_after = substr($str, $start+$current+2, 1);
+			
+			if ( in_array($one_before, $space) && ! in_array($one_after, $space) && $one_after != "<")
+			{
+				$str = str_replace(	$one_before."'\"".$one_after,
+									$one_before."‘“".$one_after,
+									$str);
+			}
+			elseif ( ! in_array($one_before, $space) && $one_before != ">")
+			{
+				$str = str_replace(	$one_before."'\"".$one_after,
+									$one_before."’”".$one_after,
+									$str);
+			}
+			
+			$start = $start+$current+2;
+		}
+		
+		// Are there quotes within a word, as in:  ("something")
+		if (preg_match_all("/(.)\"(\S+?)\"(.)/", $str, $matches))
+		{
+			for ($i=0, $s=sizeof($matches['0']); $i < $s; ++$i)
+			{
+				if ( ! in_array($matches['1'][$i], $space) && ! in_array($matches['3'][$i], $space))
+				{
+					$str = str_replace(	$matches['0'][$i],
+										$matches['1'][$i]."“".$matches['2'][$i]."”".$matches['3'][$i],
+										$str);
+				}
+			}
+		}
+		
+		if (preg_match_all("/(.)\'(\S+?)\'(.)/", $str, $matches))
+		{
+			for ($i=0, $s=sizeof($matches['0']); $i < $s; ++$i)
+			{
+				if ( ! in_array($matches['1'][$i], $space) && ! in_array($matches['3'][$i], $space))
+				{
+					$str = str_replace(	$matches['0'][$i],
+										$matches['1'][$i]."‘".$matches['2'][$i]."’".$matches['3'][$i],
+										$str);
+				}
+			}
+		}
+		
+		// How about one apostrophe, as in Rick's
+		$start = 0;
+		
+		while(TRUE)
+		{
+			$current = strpos(substr($str, $start), "'");
+			
+			if ($current === FALSE) break;
+			
+			$one_before = substr($str, $start+$current-1, 1);
+			$one_after = substr($str, $start+$current+1, 1);
+			
+			if ( ! in_array($one_before, $space) && ! in_array($one_after, $space))
+			{
+				$str = str_replace(	$one_before."'".$one_after,
+									$one_before."’".$one_after,
+									$str);
+			}
+			
+			$start = $start+$current+2;
+		}
+
+		// Em-dashes
+		$start = 0;
+		while(TRUE)
+		{
+			$current = strpos(substr($str, $start), "--");
+			
+			if ($current === FALSE) break;
+			
+			$one_before = substr($str, $start+$current-1, 1);
+			$one_after = substr($str, $start+$current+2, 1);
+			$two_before = substr($str, $start+$current-2, 1);
+			$two_after = substr($str, $start+$current+3, 1);
+			
+			if (( ! in_array($one_before, $space) && ! in_array($one_after, $space))
+				OR
+				( ! in_array($two_before, $space) && ! in_array($two_after, $space) && $one_before == ' ' && $one_after == ' ')
+				)
+			{
+				$str = str_replace(	$two_before.$one_before."--".$one_after.$two_after,
+									$two_before.trim($one_before)."—".trim($one_after).$two_after,
+									$str);
+			}
+			
+			$start = $start+$current+2;
+		}
+		
+		// Ellipsis
+		$str = preg_replace("#(\w)\.\.\.(\s|
|
)#", "\\1…\\2", $str); 
+		$str = preg_replace("#(\s|
|
)\.\.\.(\w)#", "\\1…\\2", $str); 
+		
+		// Run the translation array we defined above		
+		$str = str_replace(array_keys($table), array_values($table), $str);
+		
+		// If there are any stray double quotes we'll catch them here
+		
+		$start = 0;
+		
+		while(TRUE)
+		{
+			$current = strpos(substr($str, $start), '"');
+			
+			if ($current === FALSE) break;
+			
+			$one_before = substr($str, $start+$current-1, 1);
+			$one_after = substr($str, $start+$current+1, 1);
+			
+			if ( ! in_array($one_after, $space))
+			{
+				$str = str_replace(	$one_before.'"'.$one_after,
+									$one_before."“".$one_after,
+									$str);
+			}
+			elseif( ! in_array($one_before, $space))
+			{
+				$str = str_replace(	$one_before."'".$one_after,
+									$one_before."”".$one_after,
+									$str);
+			}
+			
+			$start = $start+$current+2;
+		}
+		
+		$start = 0;
+		
+		while(TRUE)
+		{
+			$current = strpos(substr($str, $start), "'");
+			
+			if ($current === FALSE) break;
+			
+			$one_before = substr($str, $start+$current-1, 1);
+			$one_after = substr($str, $start+$current+1, 1);
+			
+			if ( ! in_array($one_after, $space))
+			{
+				$str = str_replace(	$one_before."'".$one_after,
+									$one_before."‘".$one_after,
+									$str);
+			}
+			elseif( ! in_array($one_before, $space))
+			{
+				$str = str_replace(	$one_before."'".$one_after,
+									$one_before."’".$one_after,
+									$str);
+			}
+			
+			$start = $start+$current+2;
+		}
+		
+		return $str;
+	}
+	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Format Newlines
+	 *
+	 * Converts newline characters into either 
 tags or 

+	 *
+	 */	
+	function format_newlines($str)
+	{
+		if ($str == '')
+		{
+			return $str;
+		}
+
+		if (strpos($str, "\n") === FALSE)
+		{
+			return '
'.$str.'
';
+		}
+			
+		$str = str_replace("\n\n", "
\n\n
", $str);
+		$str = preg_replace("/([^\n])(\n)([^\n])/", "\\1
\\2\\3", $str);
+		
+		return '
'.$str.'
';
+	}	
+}
+
+ 
+?>
\ No newline at end of file
diff --git a/system/helpers/url_helper.php b/system/helpers/url_helper.php
new file mode 100644
index 000000000..d2d2a5985
--- /dev/null
+++ b/system/helpers/url_helper.php
@@ -0,0 +1,487 @@
+config->site_url($uri);
+}
+	
+// ------------------------------------------------------------------------
+
+/**
+ * Base URL
+ *
+ * Returns the "base_url" item from your config file
+ *
+ * @access	public
+ * @return	string
+ */	
+function base_url()
+{ 
+	$obj =& get_instance();
+	return $obj->config->item('base_url', 1);
+}
+	
+// ------------------------------------------------------------------------
+
+/**
+ * Index page
+ *
+ * Returns the "index_page" from your config file
+ *
+ * @access	public
+ * @return	string
+ */	
+function index_page()
+{ 
+	$obj =& get_instance();
+	return $obj->config->item('index_page');
+}
+	
+// ------------------------------------------------------------------------
+
+/**
+ * Anchor Link
+ *
+ * Creates an anchor based on the local URL.
+ *
+ * @access	public
+ * @param	string	the URL
+ * @param	string	the link title
+ * @param	mixed	any attributes
+ * @return	string
+ */	
+function anchor($uri = '', $title = '', $attributes = '')
+{
+	$site_url = site_url($uri);
+	
+	if ($title == '')
+	{
+		$title = $site_url;
+	}
+
+	if ($attributes == '')
+	{
+		$attributes = ' title="'.$title.'"';
+	}
+	else
+	{
+		if (is_array($attributes))
+		{
+			$attributes = parse_url_attributes($attributes);
+		}
+	}
+
+	return ''.$title.'';
+}
+	
+// ------------------------------------------------------------------------
+
+/**
+ * Anchor Link - Pop-up version
+ *
+ * Creates an anchor based on the local URL. The link
+ * opens a new window based on the attributes specified.
+ *
+ * @access	public
+ * @param	string	the URL
+ * @param	string	the link title
+ * @param	mixed	any attributes
+ * @return	string
+ */
+function anchor_popup($uri = '', $title = '', $attributes = FALSE)
+{	
+	$site_url = site_url($uri);
+	
+	if ($title == '')
+	{
+		$title = $site_url;
+	}
+	
+	if ($attributes === FALSE)
+	{
+		return "".$title."";
+	}
+	
+	if ( ! is_array($attributes))
+	{
+		$attributes = array();
+	}
+		
+	foreach (array('width' => '800', 'height' => '600', 'scrollbars' => 'yes', 'status' => 'yes', 'resizable' => 'yes', 'screenx' => '0', 'screeny' => '0', ) as $key => $val)
+	{
+		$atts[$key] = ( ! isset($attributes[$key])) ? $val : $attributes[$key];
+	}
+
+	return "".$title."";
+}
+	
+// ------------------------------------------------------------------------
+
+/**
+ * Mailto Link
+ *
+ * @access	public
+ * @param	string	the email address
+ * @param	string	the link title
+ * @param	mixed 	any attributes
+ * @return	string
+ */
+function mailto($email, $title = '', $attributes = '')
+{
+	if ($title == "") 
+	{
+		$title = $email;
+	}
+	
+	if (is_array($attributes))
+	{
+		$attributes = parse_url_attributes($attributes);
+	}
+	
+	return ''.$title.'';
+}
+	
+// ------------------------------------------------------------------------
+
+/**
+ * Encoded Mailto Link
+ *
+ * Create a spam-protected mailto link written in Javascript
+ *
+ * @access	public
+ * @param	string	the email address
+ * @param	string	the link title
+ * @param	mixed 	any attributes
+ * @return	string
+ */
+function safe_mailto($email, $title = '', $attributes = '')
+{
+	if ($title == "") 
+	{
+		$title = $email;
+	}
+					
+	for ($i = 0; $i < 16; $i++)
+	{
+		$x[] = substr(' $val)
+			{
+				$x[] =  ' '.$key.'="';
+				for ($i = 0; $i < strlen($val); $i++)
+				{
+					$x[] = "|".ord(substr($val, $i, 1));
+				}
+				$x[] = '"';
+			}
+		}
+		else
+		{	
+			for ($i = 0; $i < strlen($attributes); $i++)
+			{
+				$x[] = substr($attributes, $i, 1);
+			}
+		}
+	}	
+	
+	$x[] = '>';
+	
+	$temp = array();
+	for ($i = 0; $i < strlen($title); $i++)
+	{
+		$ordinal = ord($title[$i]);
+	
+		if ($ordinal < 128)
+		{
+			$x[] = "|".$ordinal;            
+		}
+		else
+		{
+			if (count($temp) == 0)
+			{
+				$count = ($ordinal < 224) ? 2 : 3;
+			}
+		
+			$temp[] = $ordinal;
+			if (count($temp) == $count)
+			{
+				$number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64);
+				$x[] = "|".$number;
+				$count = 1;
+				$temp = array();
+			}   
+		}
+	}
+	
+	$x[] = '<'; $x[] = '/'; $x[] = 'a'; $x[] = '>';
+	
+	$x = array_reverse($x);
+	ob_start();
+	
+?>http'.
+									$matches['4'][$i].'://'.
+									$matches['5'][$i].
+									$matches['6'][$i].''.
+									$period, $str);
+			}
+		}
+	}
+
+	if ($type != 'url')
+	{	
+		if (preg_match_all("/([a-zA-Z0-9_\.\-]+)@([a-zA-Z0-9\-]+)\.([a-zA-Z0-9\-\.]*)/i", $str, $matches))
+		{
+			for ($i = 0; $i < sizeof($matches['0']); $i++)
+			{
+				$period = '';
+				if (preg_match("|\.$|", $matches['3'][$i]))
+				{
+					$period = '.';
+					$matches['3'][$i] = substr($matches['3'][$i], 0, -1);
+				}
+			
+				$str = str_replace($matches['0'][$i], safe_mailto($matches['1'][$i].'@'.$matches['2'][$i].'.'.$matches['3'][$i]).$period, $str);
+			}
+		
+		}
+	}
+	return $str;
+}
+	
+// ------------------------------------------------------------------------
+
+/**
+ * Prep URL
+ *
+ * Simply adds the http:// part if missing
+ *
+ * @access	public
+ * @param	string	the URL
+ * @return	string
+ */
+function prep_url($str = '')
+{
+	if ($str == 'http://' OR $str == '')
+	{
+		return '';
+	}
+	
+	if (substr($str, 0, 7) != 'http://' && substr($str, 0, 8) != 'https://')
+	{
+		$str = 'http://'.$str;
+	}
+	
+	return $str;
+}
+	
+// ------------------------------------------------------------------------
+
+/**
+ * Create URL Title
+ *
+ * Takes a "title" string as input and creates a
+ * human-friendly URL string with either a dash
+ * or an underscore as the word separator.
+ *
+ * @access	public
+ * @param	string	the string
+ * @param	string	the separator: dash, or underscore
+ * @return	string
+ */
+function url_title($str, $separator = 'dash')
+{
+	if ($separator == 'dash')
+	{
+		$search		= '_';
+		$replace	= '-';
+	}
+	else
+	{
+		$search		= '-';
+		$replace	= '_';
+	}
+		
+	$trans = array(
+					$search								=> $replace,
+					"\s+"								=> $replace,
+					"[^a-z0-9".$replace."]"				=> '',
+					$replace."+"						=> $replace,
+					$replace."$"						=> '',
+					"^".$replace						=> ''
+				   );
+
+	$str = strip_tags(strtolower($str));
+	
+	foreach ($trans as $key => $val)
+	{
+		$str = preg_replace("#".$key."#", $val, $str);
+	} 
+	
+	return trim(stripslashes($str));
+}
+	
+// ------------------------------------------------------------------------
+
+/**
+ * Header Redirect
+ *
+ * Header redirect in two flavors
+ *
+ * @access	public
+ * @param	string	the URL
+ * @param	string	the method: location or redirect
+ * @return	string
+ */
+function redirect($uri = '', $method = 'location')
+{  
+	switch($method)
+	{
+		case 'refresh' : header("Refresh:0;url=".site_url($uri));
+			break;
+		default        : header("location:".site_url($uri));
+			break;
+	}
+	exit;
+}
+	
+// ------------------------------------------------------------------------
+
+/**
+ * Parse out the attributes
+ *
+ * Some of the functions use this
+ *
+ * @access	private
+ * @param	array
+ * @param	bool
+ * @return	string
+ */
+function parse_url_attributes($attributes, $javascript = FALSE)
+{
+	$att = '';
+	foreach ($attributes as $key => $val)
+	{
+		if ($javascript == TRUE)
+		{
+			$att .= $key . '=' . $val . ',';
+		}
+		else
+		{
+			$att .= ' ' . $key . '="' . $val . '"';
+		}
+	}
+	
+	if ($javascript == TRUE)
+	{
+		$att = substr($att, 0, -1);
+	}
+	
+	return $att;
+}
+
+?>
\ No newline at end of file
diff --git a/system/helpers/xml_helper.php b/system/helpers/xml_helper.php
new file mode 100644
index 000000000..ee3fc289b
--- /dev/null
+++ b/system/helpers/xml_helper.php
@@ -0,0 +1,55 @@
+","\"", "'", "-"),
+					   array("&", "<", ">", """, "'", "-"),
+					   $str);
+		
+	$str = preg_replace("/$temp(\d+);/","&#\\1;",$str);
+	$str = preg_replace("/$temp(\w+);/","&\\1;", $str);
+		
+	return $str;
+}    
+
+
+?>
\ No newline at end of file
-- 
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