+++ /dev/null
-<?php
-/*
- * This is the old template engine, now deprecated.
- * Friendica's default template engine is Smarty3 (see include/friendica_smarty.php)
- *
- */
-require_once 'object/TemplateEngine.php';
-
-define("KEY_NOT_EXISTS", '^R_key_not_Exists^');
-
-class Template implements ITemplateEngine {
- static $name ="internal";
-
- 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 $val;
- }
-
- /**
- * IF node
- *
- * {{ if <$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 $
- * (\[)? optional open square bracket
- * ([a-zA-Z0-9-_]+\.?)+ var name, followed by optional
- * dot, repeated at least 1 time
- * (|[a-zA-Z0-9-_:]+)* pipe followed by filter name and args, zero or many
- * (?(1)\]) if there was opened square bracket
- * (subgrup 1), match close bracket
- */
- if (preg_match_all('/\$(\[)?([a-zA-Z0-9-_]+\.?)+(\|[a-zA-Z0-9-_:]+)*(?(1)\])/', $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 $s;
- }
-
- // TemplateEngine interface
- public function replace_macros($s, $r) {
- $this->r = $r;
-
- // remove comments block
- $s = preg_replace('/{#(.*?\s*?)*?#}/', "", $s);
-
- $s = $this->_build_nodes($s);
-
- $s = preg_replace_callback('/\|\|([0-9]+)\|\|/', array($this, "_replcb_node"), $s);
- if ($s == Null)
- $this->_preg_error();
-
- // replace strings recursively (limit to 10 loops)
- $os = "";
- $count = 0;
- while ($os != $s && $count < 10) {
- $os = $s;
- $count++;
- $s = $this->var_replace($s);
- }
- return template_unescape($s);
- }
-
- public function get_template_file($file, $root='') {
- $a = get_app();
- $template_file = get_template_file($a, $file, $root);
- $content = file_get_contents($template_file);
- return $content;
- }
-
-}
-
-
-function template_escape($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);
-}
-
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