294 lines
8.3 KiB
PHP
294 lines
8.3 KiB
PHP
<?php /** @file */
|
|
define ("KEY_NOT_EXISTS", '^R_key_not_Exists^');
|
|
|
|
class Template {
|
|
var $r;
|
|
var $search;
|
|
var $replace;
|
|
var $stack = array();
|
|
var $nodes = array();
|
|
var $done = false;
|
|
var $d = false;
|
|
var $lang = null;
|
|
var $debug=false;
|
|
|
|
private function _preg_error(){
|
|
|
|
switch(preg_last_error()){
|
|
case PREG_INTERNAL_ERROR: echo('PREG_INTERNAL_ERROR'); break;
|
|
case PREG_BACKTRACK_LIMIT_ERROR: echo('PREG_BACKTRACK_LIMIT_ERROR'); break;
|
|
case PREG_RECURSION_LIMIT_ERROR: echo('PREG_RECURSION_LIMIT_ERROR'); break;
|
|
case PREG_BAD_UTF8_ERROR: echo('PREG_BAD_UTF8_ERROR'); break;
|
|
// This is only valid for php > 5.3, not certain how to code around it for unit tests
|
|
// case PREG_BAD_UTF8_OFFSET_ERROR: echo('PREG_BAD_UTF8_OFFSET_ERROR'); break;
|
|
default:
|
|
//die("Unknown preg error.");
|
|
return;
|
|
}
|
|
echo "<hr><pre>";
|
|
debug_print_backtrace();
|
|
die();
|
|
}
|
|
|
|
|
|
private function _push_stack(){
|
|
$this->stack[] = array($this->r, $this->nodes);
|
|
}
|
|
private function _pop_stack(){
|
|
list($this->r, $this->nodes) = array_pop($this->stack);
|
|
|
|
}
|
|
|
|
private function _get_var($name, $retNoKey=false){
|
|
$keys = array_map('trim',explode(".",$name));
|
|
if ($retNoKey && !array_key_exists($keys[0], $this->r)) return KEY_NOT_EXISTS;
|
|
$val = $this->r;
|
|
foreach($keys as $k) {
|
|
$val = (isset($val[$k]) ? $val[$k] : null);
|
|
}
|
|
return template_escape($val);
|
|
}
|
|
|
|
/**
|
|
* IF node
|
|
*
|
|
* {{ if <$var> }}...[{{ else }} ...] {{ endif }}
|
|
* {{ if <$var>==<val|$var> }}...[{{ else }} ...]{{ endif }}
|
|
* {{ if <$var>!=<val|$var> }}...[{{ else }} ...]{{ endif }}
|
|
*/
|
|
private function _replcb_if($args){
|
|
if (strpos($args[2],"==")>0){
|
|
list($a,$b) = array_map("trim",explode("==",$args[2]));
|
|
$a = $this->_get_var($a);
|
|
if ($b[0]=="$") $b = $this->_get_var($b);
|
|
$val = ($a == $b);
|
|
} else if (strpos($args[2],"!=")>0){
|
|
list($a,$b) = array_map("trim", explode("!=",$args[2]));
|
|
$a = $this->_get_var($a);
|
|
if ($b[0]=="$") $b = $this->_get_var($b);
|
|
$val = ($a != $b);
|
|
} else {
|
|
$val = $this->_get_var($args[2]);
|
|
}
|
|
$x = preg_split("|{{ *else *}}|", $args[3]);
|
|
return ( ($val) ? $x[0] : (isset($x[1]) ? $x[1] : ""));
|
|
}
|
|
|
|
/**
|
|
* FOR node
|
|
*
|
|
* {{ for <$var> as $name }}...{{ endfor }}
|
|
* {{ for <$var> as $key=>$name }}...{{ endfor }}
|
|
*/
|
|
private function _replcb_for($args){
|
|
$m = array_map('trim', explode(" as ", $args[2]));
|
|
$x = explode("=>",$m[1]);
|
|
if (count($x) == 1) {
|
|
$varname = $x[0];
|
|
$keyname = "";
|
|
} else {
|
|
list($keyname, $varname) = $x;
|
|
}
|
|
if ($m[0]=="" || $varname=="" || is_null($varname)) die("template error: 'for ".$m[0]." as ".$varname."'") ;
|
|
//$vals = $this->r[$m[0]];
|
|
$vals = $this->_get_var($m[0]);
|
|
$ret="";
|
|
if (!is_array($vals)) return $ret;
|
|
foreach ($vals as $k=>$v){
|
|
$this->_push_stack();
|
|
$r = $this->r;
|
|
$r[$varname] = $v;
|
|
if ($keyname!='') $r[$keyname] = (($k === 0) ? '0' : $k);
|
|
$ret .= $this->replace($args[3], $r);
|
|
$this->_pop_stack();
|
|
}
|
|
return $ret;
|
|
}
|
|
|
|
/**
|
|
* INC node
|
|
*
|
|
* {{ inc <templatefile> [with $var1=$var2] }}{{ endinc }}
|
|
*/
|
|
private function _replcb_inc($args){
|
|
if (strpos($args[2],"with")) {
|
|
list($tplfile, $newctx) = array_map('trim', explode("with",$args[2]));
|
|
} else {
|
|
$tplfile = trim($args[2]);
|
|
$newctx = null;
|
|
}
|
|
|
|
if ($tplfile[0]=="$") $tplfile = $this->_get_var($tplfile);
|
|
|
|
$this->_push_stack();
|
|
$r = $this->r;
|
|
if (!is_null($newctx)) {
|
|
list($a,$b) = array_map('trim', explode("=",$newctx));
|
|
$r[$a] = $this->_get_var($b);
|
|
}
|
|
$this->nodes = Array();
|
|
$tpl = get_markup_template($tplfile);
|
|
$ret = $this->replace($tpl, $r);
|
|
$this->_pop_stack();
|
|
return $ret;
|
|
|
|
}
|
|
|
|
/**
|
|
* DEBUG node
|
|
*
|
|
* {{ debug $var [$var [$var [...]]] }}{{ enddebug }}
|
|
*
|
|
* replace node with <pre>var_dump($var, $var, ...);</pre>
|
|
*/
|
|
private function _replcb_debug($args){
|
|
$vars = array_map('trim', explode(" ",$args[2]));
|
|
$vars[] = $args[1];
|
|
|
|
$ret = "<pre>";
|
|
foreach ($vars as $var){
|
|
$ret .= htmlspecialchars(var_export( $this->_get_var($var), true ));
|
|
$ret .= "\n";
|
|
}
|
|
$ret .= "</pre>";
|
|
return $ret;
|
|
}
|
|
|
|
private function _replcb_node($m) {
|
|
$node = $this->nodes[$m[1]];
|
|
if (method_exists($this, "_replcb_".$node[1])){
|
|
$s = call_user_func(array($this, "_replcb_".$node[1]), $node);
|
|
} else {
|
|
$s = "";
|
|
}
|
|
$s = preg_replace_callback('/\|\|([0-9]+)\|\|/', array($this, "_replcb_node"), $s);
|
|
return $s;
|
|
}
|
|
|
|
private function _replcb($m){
|
|
//var_dump(array_map('htmlspecialchars', $m));
|
|
$this->done = false;
|
|
$this->nodes[] = (array) $m;
|
|
return "||". (count($this->nodes)-1) ."||";
|
|
}
|
|
|
|
private function _build_nodes($s){
|
|
$this->done = false;
|
|
while (!$this->done){
|
|
$this->done=true;
|
|
$s = preg_replace_callback('|{{ *([a-z]*) *([^}]*)}}([^{]*({{ *else *}}[^{]*)?){{ *end\1 *}}|', array($this, "_replcb"), $s);
|
|
if ($s==Null) $this->_preg_error();
|
|
}
|
|
//({{ *else *}}[^{]*)?
|
|
krsort($this->nodes);
|
|
return $s;
|
|
}
|
|
|
|
|
|
private function var_replace($s){
|
|
$m = array();
|
|
/** regexp:
|
|
* \$ literal $
|
|
* (\[)? optional open square bracket
|
|
* ([a-zA-Z0-9-_]+\.?)+ var name, followed by optional
|
|
* dot, repeated at least 1 time
|
|
* (?(1)\]) if there was opened square bracket
|
|
* (subgrup 1), match close bracket
|
|
*/
|
|
if (preg_match_all('/\$(\[)?([a-zA-Z0-9-_]+\.?)+(?(1)\])/', $s,$m)){
|
|
foreach($m[0] as $var){
|
|
|
|
$exp = str_replace(array("[", "]"), array("", ""), $var);
|
|
$exptks = explode("|", $exp);
|
|
|
|
$varn = $exptks[0];
|
|
unset($exptks[0]);
|
|
$val = $this->_get_var($varn, true);
|
|
if ($val != KEY_NOT_EXISTS) {
|
|
/* run filters */
|
|
/*
|
|
* Filter are in form of:
|
|
* filtername:arg:arg:arg
|
|
*
|
|
* "filtername" is function name
|
|
* "arg"s are optional, var value is appended to the end
|
|
* if one "arg"==='x' , is replaced with var value
|
|
*
|
|
* examples:
|
|
* $item.body|htmlspecialchars // escape html chars
|
|
* $item.body|htmlspecialchars|strtoupper // escape html and uppercase result
|
|
* $item.created|date:%Y %M %j // format date (created is a timestamp)
|
|
* $item.body|str_replace:cat:dog // replace all "cat" with "dog"
|
|
* $item.body|str_replace:cat:dog:x:1 // replace one "cat" with "dog"
|
|
|
|
*/
|
|
foreach ($exptks as $filterstr) {
|
|
$filter = explode(":", $filterstr);
|
|
$filtername = $filter[0];
|
|
unset($filter[0]);
|
|
$valkey = array_search("x", $filter);
|
|
if ($valkey === false) {
|
|
$filter[] = $val;
|
|
} else {
|
|
$filter[$valkey] = $val;
|
|
}
|
|
if (function_exists($filtername)) {
|
|
$val = call_user_func_array($filtername, $filter);
|
|
}
|
|
}
|
|
$s = str_replace($var, $val, $s);
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
return $s;
|
|
}
|
|
|
|
public function replace($s, $r) {
|
|
$t1 = dba_timer();
|
|
$this->r = $r;
|
|
|
|
$s = $this->_build_nodes($s);
|
|
|
|
$s = preg_replace_callback('/\|\|([0-9]+)\|\|/', array($this, "_replcb_node"), $s);
|
|
if ($s==Null) $this->_preg_error();
|
|
|
|
// remove comments block
|
|
$s = preg_replace('/{#[^#]*#}/', "" , $s);
|
|
|
|
$t2 = dba_timer();
|
|
|
|
// replace strings recursively (limit to 10 loops)
|
|
$os = ""; $count=0;
|
|
while(($os !== $s) && $count<10){
|
|
$os=$s; $count++;
|
|
$s = $this->var_replace($s);
|
|
}
|
|
$t3 = dba_timer();
|
|
// logger('macro timer: ' . sprintf('%01.4f %01.4f',$t3 - $t2, $t2 - $t1));
|
|
|
|
return $s;
|
|
}
|
|
}
|
|
|
|
$t = new Template;
|
|
|
|
|
|
|
|
|
|
function template_escape($s) {
|
|
|
|
return str_replace(array('$','{{'),array('!_Doll^Ars1Az_!','!_DoubLe^BraceS4Rw_!'),$s);
|
|
|
|
|
|
}
|
|
|
|
function template_unescape($s) {
|
|
|
|
return str_replace(array('!_Doll^Ars1Az_!','!_DoubLe^BraceS4Rw_!'),array('$','{{'),$s);
|
|
|
|
|
|
|
|
}
|