mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-12-26 00:29:18 +01:00
397 lines
11 KiB
PHP
397 lines
11 KiB
PHP
<?php
|
|
/**************************************************************************\
|
|
* phpGroupWare API - Template class *
|
|
* (C) Copyright 2001 Ben Woodhead ben@echo-chn.net *
|
|
* ------------------------------------------------------------------------ *
|
|
* This is not part of phpGroupWare, but is used by phpGroupWare. *
|
|
* http://www.phpgroupware.org/ *
|
|
* ------------------------------------------------------------------------ *
|
|
* This program is free software; you can redistribute it and/or modify it *
|
|
* under the terms of the GNU Lesser General Public License as published *
|
|
* by the Free Software Foundation; either version 2.1 of the License, or *
|
|
* any later version. *
|
|
\**************************************************************************/
|
|
|
|
/**
|
|
* HTML template parser
|
|
* Ben Woodhead
|
|
* ben@echo-chn.net
|
|
* LGPL
|
|
* @package phpgwapi
|
|
*/
|
|
class Template {
|
|
/** Internal Use - Array of file names */
|
|
var $m_file = array();
|
|
/** Internal Use - Array of block names*/
|
|
var $m_block = array();
|
|
/** Internal Use */
|
|
var $m_varkeys = array();
|
|
/** Internal Use */
|
|
var $m_varvals = array();
|
|
|
|
/** Internal Use - Path definition */
|
|
var $m_root = array();
|
|
|
|
/** Internal Use - Defines what to do with unknown tags
|
|
* @param keep, remove, or comment
|
|
*/
|
|
var $m_unknowns = "";
|
|
/** Internal Use - class error instance */
|
|
var $c_error = "";
|
|
|
|
/** Default constructor
|
|
* @param path - Path to were templates are located (default in preferences)
|
|
* @param unknown - Defines what to do with unknown tags (default in preferences)
|
|
*/
|
|
function Template($root="", $unknowns="") {
|
|
global $preferences;
|
|
|
|
$this->c_error = createObject("cError","1");
|
|
$this->c_error->set_file(__FILE__);
|
|
|
|
if (!empty($root)) {
|
|
$this->set_root($root);
|
|
}
|
|
else {
|
|
$this->set_root($preferences["template"]["path"]);
|
|
}
|
|
if (!empty($unknowns)) {
|
|
$this->set_unknowns($unknowns);
|
|
} else {
|
|
$this->set_unknowns($preferences["template"]["unknowns"]);
|
|
}
|
|
}
|
|
|
|
/** Set the path to templates
|
|
* @param path - Path to were templates are located
|
|
* @returns returns false if an error has occured
|
|
*/
|
|
function set_root($root) {
|
|
if (!is_array($root)) {
|
|
if (!is_dir($root)) {
|
|
$this->c_error->halt("set_root (scalar): $root is not a directory.",0,__LINE__);
|
|
return false;
|
|
}
|
|
$this->m_root[] = $root;
|
|
} else {
|
|
reset($root);
|
|
while(list($k, $v) = each($root)) {
|
|
if (!is_dir($v)) {
|
|
$this->c_error->halt("set_root (array): $v (entry $k of root) is not a directory.",0,__LINE__);
|
|
return false;
|
|
}
|
|
$this->m_root[] = $v;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/** Sets what to do with unknown tags
|
|
* @param unknown - Path to were templates are located
|
|
* @notes keep - displays the unknown tags
|
|
* @notes remove - removes unknown tags
|
|
* @returns returns false if an error has occured
|
|
*/
|
|
function set_unknowns($unknowns = "") {
|
|
$this->m_unknowns = $unknowns;
|
|
}
|
|
|
|
/** Sets name of template file
|
|
* @blockname - alias for the block
|
|
* @filename - filename of block
|
|
* @notes Must be passed in as array
|
|
* @returns returns false if an error has occured
|
|
*/
|
|
function set_file($varname, $filename = "") {
|
|
if (!is_array($varname)) {
|
|
if ($filename == "") {
|
|
$c_error->halt("set_file: For varname $varname filename is empty.",0,__LINE__);
|
|
return false;
|
|
}
|
|
$this->m_file[$varname] = $this->filename($filename);
|
|
} else {
|
|
reset($varname);
|
|
while(list($h, $f) = each($varname)) {
|
|
if ($f == "") {
|
|
$this->c_error->halt("set_file: For varname $h filename is empty.",0,__LINE__);
|
|
return false;
|
|
}
|
|
$this->m_file[$h] = $this->filename($f);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/** Defines what block to use in template
|
|
* @param parent - is the block alias
|
|
* @param block - will look for this name in template file
|
|
* @param name - alias for block (defaults to block name)
|
|
* @notes Also can be used to define nested blocks
|
|
* @returns Currently returns true
|
|
*/
|
|
function set_block($parent, $varname, $name = "") {
|
|
if ($name == "") {
|
|
$name = $varname;
|
|
}
|
|
$this->m_block[$varname]["parent"] = $parent;
|
|
$this->m_block[$varname]["alias"] = $name;
|
|
return true;
|
|
}
|
|
|
|
/** Sets the tags in template
|
|
* @param Tag name found in template file
|
|
* @param Value that will be included when parsing complete
|
|
* @return No return
|
|
*/
|
|
function set_var($varname, $value = "") {
|
|
if (!is_array($varname)) {
|
|
if (!empty($varname)) {
|
|
$this->m_varkeys[$varname] = "/".$this->varname($varname)."/";
|
|
$this->m_varvals[$varname] = $value;
|
|
}
|
|
} else {
|
|
reset($varname);
|
|
while(list($k, $v) = each($varname)) {
|
|
if (!empty($k)) {
|
|
$this->m_varkeys[$k] = "/".$this->varname($k)."/";
|
|
$this->m_varvals[$k] = $v;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/** Substitute text in templates
|
|
* @param Tag name found in template file
|
|
* @return processed string
|
|
* @notes Internal Use
|
|
*/
|
|
function subst($varname) {
|
|
$str = $this->get_var($varname);
|
|
$str = @preg_replace($this->m_varkeys, $this->m_varvals, $str);
|
|
return $str;
|
|
}
|
|
|
|
/** Substitute text in templates and prints
|
|
* @param Tag name found in template file
|
|
* @notes Internal Use
|
|
*/
|
|
function psubst($varname) {
|
|
print $this->subst($varname);
|
|
return false;
|
|
}
|
|
|
|
/** Parse complete template
|
|
* @param Target - Alias for processed text
|
|
* @param Block - Name of block to process
|
|
* @param Append - Should text be append to file (defaults no false)
|
|
* @return processed string
|
|
*/
|
|
function parse($target, $varname, $append = false) {
|
|
if (!is_array($varname)) {
|
|
$str = $this->subst($varname);
|
|
if ($append) {
|
|
$this->set_var($target, $this->get_var($target) . $str);
|
|
} else {
|
|
$this->set_var($target, $str);
|
|
}
|
|
} else {
|
|
reset($varname);
|
|
while(list($i, $h) = each($varname)) {
|
|
$str = $this->subst($h);
|
|
$this->set_var($target, $str);
|
|
}
|
|
}
|
|
return $str;
|
|
}
|
|
|
|
/** Parse complete template and print results
|
|
* @param Target - Alias for processed text
|
|
* @param Block - Name of block to process
|
|
* @param Append - Should text be append to file (defaults no false)
|
|
*/
|
|
function pparse($target, $varname, $append = false) {
|
|
print $this->parse($target, $varname, $append);
|
|
return false;
|
|
}
|
|
|
|
/** Gets the tags from the array
|
|
* @notes Internal use
|
|
*/
|
|
function get_vars() {
|
|
reset($this->m_varkeys);
|
|
while(list($k, $v) = each($this->m_varkeys)) {
|
|
$result[$k] = $this->get_var($k);
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/** Gets the tags from the single input
|
|
* @notes Internal use
|
|
* @returns Result array
|
|
*/
|
|
function get_var($varname) {
|
|
if (!is_array($varname)) {
|
|
if (!isset($this->m_varkeys[$varname]) or empty($this->m_varvals[$varname])) {
|
|
if (isset($this->m_file[$varname])) {
|
|
$this->loadfile($varname);
|
|
}
|
|
if (isset($this->m_block[$varname])) {
|
|
$this->implodeBlock($varname);
|
|
}
|
|
}
|
|
return(isset($this->m_varvals[$varname]) ? $this->m_varvals[$varname] : "");
|
|
|
|
} else {
|
|
|
|
reset($varname);
|
|
while(list($k, $v) = each($varname)) {
|
|
if (!isset($this->m_varkeys[$varname]) or empty($this->m_varvals[$varname])) {
|
|
if ($this->m_file[$v]) {
|
|
$this->loadfile($v);
|
|
}
|
|
if ($this->m_block[$v]) {
|
|
$this->implodeBlock($v);
|
|
}
|
|
}
|
|
$result[$v] = $this->m_varvals[$v];
|
|
}
|
|
return $result;
|
|
}
|
|
}
|
|
|
|
/** Gets undefined
|
|
* @notes Internal Use
|
|
*/
|
|
function get_undefined($varname) {
|
|
$str = $this->get_var($varname);
|
|
preg_match_all("/\\{([a-zA-Z0-9_]+)\\}/", $str, $m);
|
|
$m = $m[1];
|
|
if (!is_array($m)) {
|
|
return false;
|
|
}
|
|
reset($m);
|
|
while(list($k, $v) = each($m)) {
|
|
if (!isset($this->m_varkeys[$v]))
|
|
$result[$v] = $v;
|
|
}
|
|
if (count($result)) {
|
|
return $result;
|
|
}
|
|
else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/** Decided what to do with unknown tags
|
|
* @notes Internal use
|
|
* @returns Processed string
|
|
*/
|
|
function finish($str) {
|
|
switch ($this->m_unknowns) {
|
|
case "keep":
|
|
break;
|
|
|
|
case "remove":
|
|
$str = preg_replace("/{[^ \t\r\n}]+}/", "", $str);
|
|
break;
|
|
|
|
case "comment":
|
|
$str = preg_replace("/{[^ \t\r\n}]+}/", "<!-- Template $varname: Variable \\1 undefined -->", $str);
|
|
break;
|
|
}
|
|
return $str;
|
|
}
|
|
|
|
/** Print out template
|
|
* @param Alias to processed template
|
|
*/
|
|
function p($varname) {
|
|
print $this->finish($this->get_var($varname));
|
|
}
|
|
|
|
/** Gets results for finished
|
|
* @notes Internal use
|
|
* @returns processed tabs from finished
|
|
*/
|
|
function get($varname) {
|
|
return $this->finish($this->get_var($varname));
|
|
}
|
|
|
|
/** Remove unwanted characters from filename
|
|
* @notes Internal use
|
|
* @returns Returns file name if not error has occured
|
|
*/
|
|
function filename($filename) {
|
|
if (substr($filename, 0, 1) == "/" || preg_match("/[a-z]{1}:/i",$filename) ) {
|
|
if (file_exists($filename)) {
|
|
return $filename;
|
|
}
|
|
else {
|
|
$this->c_error->halt("filename (absolute): $filename does not exist.",0,__LINE__);
|
|
return false;
|
|
}
|
|
}
|
|
reset($this->m_root);
|
|
while(list($k, $v) = each($this->m_root)) {
|
|
$f = "$v/$filename";
|
|
if (file_exists($f)) {
|
|
return $f;
|
|
}
|
|
}
|
|
$this->c_error->halt("filename (relative): file $filename does not exist.",0,__LINE__);
|
|
return false;
|
|
}
|
|
|
|
/** Removed unwanted characters for block name
|
|
* @notes Internal use
|
|
* @returns Block name
|
|
*/
|
|
function varname($m_varname) {
|
|
return preg_quote("{".$m_varname."}");
|
|
}
|
|
|
|
/** Open the files
|
|
* @notes Internal use
|
|
* @returns Processed string
|
|
*/
|
|
function loadfile($varname) {
|
|
if (!isset($this->m_file[$varname])) {
|
|
$this->c_error->halt("loadfile: $varname is not a valid varname.",0,__LINE__);
|
|
return false;
|
|
}
|
|
$filename = $this->filename($this->m_file[$varname]);
|
|
|
|
$str = implode("", @file($filename));
|
|
if (empty($str)) {
|
|
$this->c_error->halt("loadfile: While loading $varname, $filename does not exist or is empty.",0,__LINE__);
|
|
return false;
|
|
}
|
|
|
|
$this->set_var($varname, $str);
|
|
return true;
|
|
}
|
|
|
|
/** Implode Blocks
|
|
* @notes Internal use
|
|
*/
|
|
function implodeBlock($varname) {
|
|
$parent = $this->m_block[$varname]["parent"];
|
|
$alias = $this->m_block[$varname]["alias"];
|
|
|
|
$str = $this->get_var($parent);
|
|
|
|
$reg = "/<!--\\s+BEGIN $varname\\s+-->(.*)\n\s*<!--\\s+END $varname\\s+-->/sm";
|
|
if (!preg_match_all($reg, $str, $m))
|
|
{
|
|
$this->c_error->halt("implodeBlock - no match for $varname variable",0,__LINE__);
|
|
}
|
|
else
|
|
{
|
|
$str = preg_replace($reg, "{"."$alias}", $str);
|
|
$this->set_var($varname, $m[1][0]);
|
|
$this->set_var($parent, $str);
|
|
}
|
|
}
|
|
}
|
|
?>
|