<?php
/***************************************
** Title........: Template class
** Filename.....: class.template.inc
** Author.......: Richard Heyes
** Version......: 1.3
** Notes........:
** Last changed.: 13/08/2000
** Last change..: Added 5 new functions.
***************************************/
class template{
var $var_names = array();
var $files = array();
var $start = '{';
var $end = '}';
/***************************************
** Function to load a template into
** the class.
***************************************/
function load_file($file_id, $filename){
$this->files[$file_id] = fread($fp = fopen($filename, 'r'), filesize($filename));
fclose($fp);
}
/***************************************
** Function to load a template into
** the class.
***************************************/
function set_identifiers($start, $end){
$this->start = $start;
$this->end = $end;
}
/***************************************
** This function is used only by the
** register() method, for going through
** arays and extracting the values.
***************************************/
function traverse_array($file_id, $array){
while(list(,$value) = each($array)){
if(is_array($value)) $this->traverse_array($file_id, $value);
else $this->var_names[$file_id][] = $value;
}
}
/***************************************
** Function to register a variable(s).
***************************************/
function register($file_id, $var_name){
if(is_array($var_name)){
$this->traverse_array($file_id, $var_name);
}elseif($var_name != ''){
if(is_long(strpos($var_name, ',')) == TRUE){
$var_name = explode(',', $var_name);
for(reset($var_name); $current = current($var_name); next($var_name)) $this->var_names[$file_id][] = trim($current);
}else{
$this->var_names[$file_id][] = $var_name;
}
}
}
/***************************************
** Function to include another file.
** eg. A header/footer.
***************************************/
function include_file($file_id, $filename){
if(file_exists($filename)){
$include = fread($fp = fopen($filename, 'r'), filesize($filename));
fclose($fp);
}else $include = '[ERROR: "'.$filename.'" does not exist.]';
$tag = substr($this->files[$file_id], strpos(strtolower($this->files[$file_id]), '<include filename="'.$filename.'">'), strlen('<include filename="'.$filename.'">'));
$this->files[$file_id] = str_replace($tag, $include, $this->files[$file_id]);
}
/***************************************
** Function for reading and parsing the
** html file for normal variables. Also
** now checks for include tags and if
** necessary calls include_file()
***************************************/
function parse($file_id){
$file_ids = explode(',', $file_id);
for(reset($file_ids); $file_id = trim(current($file_ids)); next($file_ids)){
while(is_long($pos = strpos(strtolower($this->files[$file_id]), '<include filename="'))){
$pos += 19;
$endpos = strpos($this->files[$file_id], '">', $pos);
$filename = substr($this->files[$file_id], $pos, $endpos-$pos);
$this->include_file($file_id, $filename);
}
if(isset($this->var_names[$file_id]) AND count($this->var_names[$file_id]) > 0){
for($i=0; $i<count($this->var_names[$file_id]); $i++){
$temp_var = $this->var_names[$file_id][$i];
global $$temp_var;
$this->files[$file_id] = str_replace($this->start.$temp_var.$this->end, $$temp_var, $this->files[$file_id]);
}
}
}
}
/***************************************
** Function for parsing an array.
***************************************/
function parse_loop($file_id, $array_name){
global $$array_name;
$loop_code = '';
$file = explode(chr(10), $this->files[$file_id]);
$start_pos = strpos(strtolower($this->files[$file_id]), '<loop name="'.$array_name.'">') + strlen('<loop name="'.$array_name.'">');
$end_pos = strpos(strtolower($this->files[$file_id]), '</loop name="'.$array_name.'">');
$loop_code = substr($this->files[$file_id], $start_pos, $end_pos-$start_pos);
$start_tag = substr($this->files[$file_id], strpos(strtolower($this->files[$file_id]), '<loop name="'.$array_name.'">'),strlen('<loop name="'.$array_name.'">'));
$end_tag = substr($this->files[$file_id], strpos(strtolower($this->files[$file_id]), '</loop name="'.$array_name.'">'),strlen('</loop name="'.$array_name.'">'));
if($loop_code != ''){
$new_code = '';
for($i=0; $i<count($$array_name); $i++){
$temp_code = $loop_code;
while(list($key,) = each(${$array_name}[$i])){
$temp_code = str_replace($this->start.$key.$this->end,${$array_name}[$i][$key], $temp_code);
}
$new_code .= $temp_code;
}
$this->files[$file_id] = str_replace($start_tag.$loop_code.$end_tag, $new_code, $this->files[$file_id]);
}
}
/***************************************
** Function for parsing a Mysql result
** set.
***************************************/
function parse_sql($file_id, $result_name){
global $$result_name;
$loop_code = '';
$start_pos = strpos(strtolower($this->files[$file_id]), '<loop name="'.$result_name.'">') + strlen('<loop name="'.$result_name.'">');
$end_pos = strpos(strtolower($this->files[$file_id]), '</loop name="'.$result_name.'">');
$loop_code = substr($this->files[$file_id], $start_pos, $end_pos-$start_pos);
$start_tag = substr($this->files[$file_id], strpos(strtolower($this->files[$file_id]), '<loop name="'.$result_name.'">'),strlen('<loop name="'.$result_name.'">'));
$end_tag = substr($this->files[$file_id], strpos(strtolower($this->files[$file_id]), '</loop name="'.$result_name.'">'),strlen('</loop name="'.$result_name.'">'));
if($loop_code != ''){
$new_code = '';
$field_names = array();
for($i=0; $i<mysql_num_fields($$result_name); $i++) $field_names[] = mysql_field_name($$result_name,$i);
while($row_data = mysql_fetch_array($$result_name, MYSQL_ASSOC)){
$temp_code = $loop_code;
for($i=0; $i<count($field_names); $i++){
$temp_code = str_replace($this->start.$field_names[$i].$this->end, $row_data[$field_names[$i]], $temp_code);
}
$new_code.= $temp_code;
}
$this->files[$file_id] = str_replace($start_tag.$loop_code.$end_tag, $new_code, $this->files[$file_id]);
}
}
/***************************************
** Function for parsing a Postgres result
** set.
***************************************/
function parse_pgsql($file_id, $result_name){
global $$result_name;
$loop_code = '';
$start_pos = strpos(strtolower($this->files[$file_id]), '<loop name="'.$result_name.'">') + strlen('<loop name="'.$result_name.'">');
$end_pos = strpos(strtolower($this->files[$file_id]), '</loop name="'.$result_name.'">');
$loop_code = substr($this->files[$file_id], $start_pos, $end_pos-$start_pos);
$start_tag = substr($this->files[$file_id], strpos(strtolower($this->files[$file_id]), '<loop name="'.$result_name.'">'),strlen('<loop name="'.$result_name.'">'));
$end_tag = substr($this->files[$file_id], strpos(strtolower($this->files[$file_id]), '</loop name="'.$result_name.'">'),strlen('</loop name="'.$result_name.'">'));
if($loop_code != ''){
$new_code = '';
$field_names = array();
for($i=0; $i<pg_numfields($$result_name); $i++) $field_names[] = pg_fieldname($$result_name,$i);
for($i=0; $i<pg_numrows($$result_name) AND $row_data = pg_fetch_array($$result_name, $i); $i++){
$temp_code = $loop_code;
for($j=0; $j<count($field_names); $j++){
$temp_code = str_replace($this->start.$field_names[$j].$this->end, $row_data[$field_names[$j]], $temp_code);
}
$new_code.= $temp_code;
}
$this->files[$file_id] = str_replace($start_tag.$loop_code.$end_tag, $new_code, $this->files[$file_id]);
}
}
/***************************************
** Function for printing the resulting
** file(s).
***************************************/
function print_file($file_id){
if(is_long(strpos($file_id, ',')) == TRUE){
$file_id = explode(',', $file_id);
for(reset($file_id); $current = current($file_id); next($file_id)) echo $this->files[trim($current)];
}else{
echo $this->files[$file_id];
}
}
/***************************************
** Function for returning the resulting
** file(s).
***************************************/
function return_file($file_id){
$ret = '';
if(is_long(strpos($file_id, ',')) == TRUE){
$file_id = explode(',', $file_id);
for(reset($file_id); $current = current($file_id); next($file_id)) $ret .= $this->files[trim($current)];
}else{
$ret .= $this->files[$file_id];
}
return $ret;
}
/***************************************
** Parses and then immediately prints
** the file. This function added by
** Bruce Christensen.
***************************************/
function pprint($file_id, $replacements = ''){
$this->register($file_id, $replacements);
$this->parse($file_id);
$this->print_file($file_id);
}
/***************************************
** Parses and then immediately returns
** the file's contents. Function added
** by Bruce Christensen.
***************************************/
function pget($file_id, $replacements = ''){
$this->register($file_id, $replacements);
$this->parse($file_id);
return $this->return_file($file_id);
}
/***************************************
** Loads a file, parses it, and prints it.
** This function added by Bruce Christensen.
***************************************/
function pprint_file($filename, $replacements = ''){
for($file_id=1; isset($this->files[$file_id]); $file_id++);
$this->load_file($file_id, $filename);
$this->pprint($file_id, $replacements);
unset($this->files[$file_id]);
}
/***************************************
** Loads, parses and then immediately
** returns the file's contents.
** Function added by Bruce Christensen.
***************************************/
function pget_file($filename, $replacements = ''){
for($file_id=1; isset($this->files[$file_id]); $file_id++);
$this->load_file($file_id, $filename);
return $this->pget($file_id, $replacements);
}
} // End of class
?> |
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