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-rw-r--r--stupid_template_engine.php1497
1 files changed, 827 insertions, 670 deletions
diff --git a/stupid_template_engine.php b/stupid_template_engine.php
index 7153a99..dd90a89 100644
--- a/stupid_template_engine.php
+++ b/stupid_template_engine.php
@@ -15,76 +15,71 @@
*/
namespace ste;
-abstract class ASTNode
-{
+abstract class ASTNode {
public $tpl;
public $offset;
- public function __construct($tpl, $off)
- {
+ public function __construct($tpl, $off) {
$this->tpl = $tpl;
$this->offset = $off;
}
}
-class TextNode extends ASTNode
-{
+class TextNode extends ASTNode {
public $text;
+ public function __construct($tpl, $off, $text = "") {
+ parent::__construct($tpl, $off);
+ $this->text = $text;
+ }
}
-class TagNode extends ASTNode
-{
+class TagNode extends ASTNode {
public $name;
- public $params;
- public $sub;
+ public $params = array();
+ public $sub = array();
+ public function __construct($tpl, $off, $name = "") {
+ parent::__construct($tpl, $off);
+ $this->name = $name;
+ }
}
-class VariableNode extends ASTNode
-{
+class VariableNode extends ASTNode {
public $name;
- public $arrayfields;
- public function transcompile()
- {
+ public $arrayfields = array();
+ public function transcompile() {
$varaccess = '@$ste->vars[' . (is_numeric($this->name) ? $this->name : '"' . escape_text($this->name) . '"'). ']';
- foreach($this->arrayfields as $af)
- {
- if((count($af) == 1) and ($af[0] instanceof TextNode) and is_numeric($af->text))
+ foreach($this->arrayfields as $af) {
+ if((count($af) == 1) and ($af[0] instanceof TextNode) and is_numeric($af[0]->text)) {
$varaccess .= '[' . $af->text . ']';
- else
- $varaccess .= '[' . implode(".",
- array_map(
- function($node)
- {
- if($node instanceof TextNode)
- return "\"" . escape_text($node->text) . "\"";
- else if($node instanceof VariableNode)
- return $node->transcompile();
- }, $af
- )
- ). ']';
+ } else {
+ $varaccess .= '[' . implode(".", array_map(function($node) {
+ if($node instanceof TextNode) {
+ return "\"" . escape_text($node->text) . "\"";
+ } else if($node instanceof VariableNode) {
+ return $node->transcompile();
+ }
+ }, $af)). ']';
+ }
}
return $varaccess;
}
}
-class ParseCompileError extends \Exception
-{
+class ParseCompileError extends \Exception {
public $msg;
public $tpl;
public $off;
- public function __construct($msg, $tpl, $offset, $code = 0, $previous = NULL)
- {
+ public function __construct($msg, $tpl, $offset, $code = 0, $previous = NULL) {
$this->msg = $msg;
$this->tpl = $tpl;
$this->off = $offset;
$this->message = "$msg (Template $tpl, Offset $offset)";
}
- public function rewrite($code)
- {
+ public function rewrite($code) {
$line = substr_count(str_replace("\r\n", "\n", substr($code, 0, $this->off)), "\n") + 1;
$this->message = "{$this->msg} (Template {$this->tpl}, Line $line)";
- $this->is_rewritten = True;
+ $this->is_rewritten = true;
}
}
@@ -102,288 +97,463 @@ class RuntimeError extends \Exception {}
*/
class FatalRuntimeError extends \Exception {}
-/* $text must start after the first opening bracket */
-function find_closing_bracket($text, $opening, $closing)
-{
- $counter = 1;
- $len = strlen($text);
- for($i = 0; $i < $len; ++$i)
- {
- switch($text[$i])
- {
- case $opening:
- ++$counter;
- break;
- case $closing:
- --$counter;
- break;
- }
- if($counter == 0)
- break;
- }
-
- if($counter > 0)
- throw new \Exception("Missing closing \"$closing\". Stop.");
+/*
+ * Class: Parser
+ * The class, where the parser lives in. Can not be constructed manually.
+ * Use the static method parse.
+ */
+class Parser {
+ private $text;
+ private $name;
+ private $off;
+ private $len;
- return $i;
-}
-
-function instance_in_array($classname, $a)
-{
- foreach($a as $v)
- {
- if($v instanceof $classname)
- return True;
- }
- return False;
-}
-
-function unescape_text($text)
-{
- return stripcslashes($text);
-}
-
-function tokenize_text($text, $tpl, $off)
-{
- $tokens = array();
- /* Find next non-escaped $-char */
- if(preg_match("/(?:(?<!\\\\)\\$)/s", $text, $match, PREG_OFFSET_CAPTURE) == 0)
- {
- $node = new TextNode($tpl, $off);
- $node->text = preg_replace("/^(?:\\n|\\r\\n|\\r)\\s*/s", "", unescape_text($text));
- return (strlen($node->text) == 0) ? array() : array($node);
- }
+ const PARSE_SHORT = 1;
+ const PARSE_TAG = 2;
- if($match[0][1] > 0)
- {
- $node = new TextNode($tpl, $off);
- $node->text = unescape_text(substr($text, 0, $match[0][1]));
- $tokens[] = $node;
- }
+ const ESCAPES_DEFAULT = '$?~{}|\\';
- if($text[$match[0][1] + 1] == "{")
- {
- try
- {
- $varend = find_closing_bracket(substr($text, $match[0][1] + 2), "{", "}") + $match[0][1] + 2;
- }
- catch(\Exception $e)
- {
- throw new ParseCompileError("Parse Error: Missing closing '}'", $tpl, $off + $match[0][1] + 1);
- }
- return array_merge(
- $tokens,
- tokenize_text("\$" . substr($text, $match[0][1] + 2, ($varend - 1) - ($match[0][1] + 1)), $tpl, $off + $match[0][1] + 2),
- tokenize_text(substr($text, $varend + 1), $tpl, $off + $varend + 1)
- );
+ private function __construct($text, $name) {
+ $this->text = $text;
+ $this->name = $name;
+ $this->off = 0;
+ $this->len = mb_strlen($text);
}
- $text = substr($text, $match[0][1] + 1);
- $off += $match[0][1] + 1;
- if(preg_match("/^[a-zA-Z0-9_]+/s", $text, $match, PREG_OFFSET_CAPTURE) == 0)
- {
- $nexttokens = tokenize_text($text, $tpl, $off);
- if($nexttokens[0] instanceof TextNode)
- $nexttokens[0]->text = "\$" . $nexttokens[0]->text;
- else
- {
- $node = new TextNode($tpl, $off);
- $node->text = "\$";
- $tokens[] = $node;
- }
- return array_merge($tokens, $nexttokens);
+ private function next($n = 1) {
+ if($n <= 0) {
+ throw new \InvalidArgumentException("\$n must be > 0");
+ }
+ $c = mb_substr($this->text, $this->off, $n);
+ $this->off = min($this->off + $n, $this->len);
+ return $c;
}
- $node = new VariableNode($tpl, $off + $match[0][1]);
- $node->name = $match[0][0];
- $node->arrayfields = array();
- $text = substr($text, $match[0][1] + strlen($match[0][0]));
- $off += $match[0][1] + strlen($match[0][0]);
- while(@$text[0] == "[")
- {
- $text = substr($text, 1);
- $off += 1;
- try
- {
- $fieldend = find_closing_bracket($text, "[", "]");
- }
- catch(\Exception $e)
- {
- throw new ParseCompileError("Parse Error: Missing closing ']'", $tpl, $off - 1);
- }
- $node->arrayfields[] = tokenize_text(substr($text, 0, $fieldend), $tpl, $off);
- $text = substr($text, $fieldend + 1);
- $off += $fieldend + 1;
+ private function back($n = 1) {
+ if($n <= 0) {
+ throw new \InvalidArgumentException("\$n must be > 0");
+ }
+ $this->off = max($this->off - $n, 0);
}
- $tokens[] = $node;
+ private function search_off($needle) {
+ return mb_strpos($this->text, $needle, $this->off);
+ }
- return strlen($text) > 0 ? array_merge($tokens, tokenize_text($text, $tpl, $off)) : $tokens;
-}
+ private function search_multi($needles) {
+ $oldoff = $this->off;
+
+ $minoff = $this->len;
+ $which = NULL;
+
+ foreach($needles as $key => $needle) {
+ if(($off = $this->search_off($needle)) === false) {
+ continue;
+ }
-function mk_ast($code, $tpl, $err_off)
-{
- $ast = array();
-
- if(preg_match("/\\<\\s*ste:([a-zA-Z0-9_]*)/s", $code, $matches, PREG_OFFSET_CAPTURE) == 0)
- return tokenize_text($code, $tpl, $err_off);
-
- $ast = tokenize_text(substr($code, 0, $matches[0][1]), $tpl, $err_off);
- $tag = new TagNode($tpl, $err_off + $matches[0][1]);
- $tag->name = $matches[1][0];
-
- $code = substr($code, $matches[0][1] + strlen($matches[0][0]));
- $err_off += $matches[0][1] + strlen($matches[0][0]);
+ if($off < $minoff) {
+ $minoff = $off;
+ $which = $key;
+ }
+ }
+
+ $this->off = $minoff + (($which === NULL) ? 0 : mb_strlen((string) $needles[$which]));
+
+ return array($which, $minoff, mb_substr($this->text, $oldoff, $minoff - $oldoff), $oldoff);
+ }
- $tag->params = array();
+ private function search($needle) {
+ $oldoff = $this->off;
+
+ $off = $this->search_off($needle);
+ if($off === false) {
+ $this->off = $this->len;
+ return array(false, mb_substr($this->text, $oldoff), $oldoff);
+ }
+
+ $this->off = $off + mb_strlen($needle);
+ return array($off, mb_substr($this->text, $oldoff, $off - $oldoff), $oldoff);
+ }
- while(preg_match("/^\\s+([a-zA-Z0-9_]+)=((?:\"(?:.*?)(?<!\\\\)\")|(?:'(?:.*?)(?<!\\\\)'))/s", $code, $matches, PREG_OFFSET_CAPTURE) > 0)
- {
- $paramval = substr($code, $matches[2][1] + 1, strlen($matches[2][0]) - 2);
- $paramval = str_replace("\\\"", "\"", $paramval);
- $paramval = str_replace("\\'", "'", $paramval);
- $tag->params[$matches[1][0]] = tokenize_text($paramval, $tpl, $err_off + $matches[2][1] + 1);
- $code = substr($code, strlen($matches[0][0]));
- $err_off += strlen($matches[0][0]);
+ private function take_while($cb) {
+ $s = "";
+ while($c = $this->next()) {
+ if(!call_user_func($cb, $c)) {
+ $this->back();
+ return $s;
+ }
+ $s .= $c;
+ }
+ return $s;
}
- if(preg_match("/^\\s*([\\/]?)\\s*\\>/s", $code, $matches) == 0)
- throw new ParseCompileError("Parse Error: Missing closing '>' in \"" . $tag->name . "\"-Tag.", $tpl, $tag->offset);
+ private function skip_ws() {
+ $this->take_while("ctype_space");
+ }
- $code = substr($code, strlen($matches[0]));
- $err_off += strlen($matches[0]);
+ private function get_name() {
+ $off = $this->off;
+ $name = $this->take_while(function($c) { return ctype_alnum($c) || ($c == "_"); });
+ if(mb_strlen($name) == 0) {
+ throw new ParseCompileError("Expected a name (alphanumeric chars + '_', at least one char)", $this->name, $off);
+ }
+ return $name;
+ }
- $tag->sub = array();
+ /*
+ * Function: parse
+ * Parses the input into an AST.
+ *
+ * You only need this function, if you want to manually trnascompile a template.
+ *
+ * Parameters:
+ * $text - The input code.
+ * $name - The name of the template.
+ *
+ * Returns:
+ * An array of <ASTNode> objects.
+ *
+ * Throws:
+ * <ParseCompileError>
+ */
+ public static function parse($text, $name) {
+ $obj = new self($text, $name);
+ $res = $obj->parse_text(
+ self::ESCAPES_DEFAULT, /* Escapes */
+ self::PARSE_SHORT | self::PARSE_TAG /* Flags */
+ );
+ return self::tidyup_ast($res[0]);
+ }
- if($matches[1][0] != "/")
- {
- /* Handling ste:comment pseudotag */
- if($tag->name == "comment")
- {
- if(preg_match("/\\<\\s*\\/\\s*ste:comment\\s*\\>/s", $code, $matches, PREG_OFFSET_CAPTURE) == 0)
- return $ast; /* Treat the whole code as comment */
- $comment_end = $matches[0][1] + strlen($matches[0][0]);
- return array_merge($ast, mk_ast(substr($code, $comment_end), $tpl, $err_off + $comment_end));
- }
-
- /* Handling ste:rawtext pseudotag */
- if($tag->name == "rawtext")
- {
- $tag = new TextNode($tpl, $tag->offset);
- if(preg_match("/\\<\\s*\\/\\s*ste:rawtext\\s*\\>/s", $code, $matches, PREG_OFFSET_CAPTURE) == 0)
- {
- /* Treat the rest of the code as rawtext */
- $tag->text = $code;
- $ast[] = $tag;
- return $ast;
- }
- $tag->text = strpos($code, 0, $matches[0][1]);
- $ast[] = $tag;
- $rawtext_end = $matches[0][1] + strlen($matches[0][0]);
- return array_merge($ast, mk_ast(substr($code, $rawtext_end), $tpl, $err_off + $rawtext_end));
- }
-
- $off = 0;
- $last_tag_start = 0;
- $tagstack = array(array($tag->name, $tag->offset - $err_off));
- while(preg_match("/\\<((?:\\s*)|(?:\\s*\\/\\s*))ste:([a-zA-Z0-9_]*)(?:\\s+(?:[a-zA-Z0-9_]+)=(?:(?:\"(?:.*?)(?<!\\\\)\")|(?:'(?:.*?)(?<!\\\\)')))*((?:\\s*)|(?:\\s*\\/\\s*))\\>/s", $code, $matches, PREG_OFFSET_CAPTURE, $off) > 0) /* RegEx from hell! Matches all <ste:> Tags. Opening, closing and self-closing ones. */
- {
- if(trim($matches[3][0]) != "/")
- {
- $closingtag = trim($matches[1][0]);
- if($closingtag[0] == "/")
- {
- list($matching_opentag, $mo_off) = array_pop($tagstack);
- if($matching_opentag != $matches[2][0])
- throw new ParseCompileError("Parse Error: Missing closing \"ste:$matching_opentag\"-Tag.", $tpl, $mo_off + $err_off);
+ private static function tidyup_ast($ast) {
+ $out = array();
+
+ $prevtext = NULL;
+ $first = true;
+
+ foreach($ast as $node) {
+ if($node instanceof TextNode) {
+ if($prevtext === NULL) {
+ $prevtext = $node;
+ } else {
+ $prevtext->text .= $node->text;
+ }
+ } else {
+ if($prevtext !== NULL) {
+ if($first) {
+ $prevtext->text = ltrim($prevtext->text);
+ }
+ if($prevtext->text != "") {
+ $out[] = $prevtext;
+ }
}
- else
- $tagstack[] = array($matches[2][0], $matches[0][1]);
+ $prevtext = NULL;
+ $first = false;
+
+ if($node instanceof TagNode) {
+ $node->sub = self::tidyup_ast($node->sub);
+ foreach($node->params as $k => &$v) {
+ $v = self::tidyup_ast($v);
+ }
+ unset($v);
+ } else { /* VariableNode */
+ foreach($node->arrayfields as &$v) {
+ $v = self::tidyup_ast($v);
+ }
+ unset($v);
+ }
+
+ $out[] = $node;
}
- $last_tag_start = $matches[0][1];
- $off = $last_tag_start + strlen($matches[0][0]);
- if(empty($tagstack))
+ }
+
+ if($prevtext !== NULL) {
+ if($first) {
+ $prevtext->text = ltrim($prevtext->text);
+ }
+ if($prevtext->text != "") {
+ $out[] = $prevtext;
+ }
+ }
+
+ return $out;
+ }
+
+ private function parse_text($escapes, $flags, $breakon = NULL, $separator = NULL, $nullaction = NULL, $opentag = NULL, $openedat = -1) {
+ $elems = array();
+ $astlist = array();
+
+ $needles = array(
+ "commentopen" => "<ste:comment>",
+ "rawopen" => "<ste:rawtext>",
+ "escape" => '\\',
+ "varcurlyopen" => '${',
+ "var" => '$',
+ );
+
+ if($flags & self::PARSE_TAG) {
+ $needles["tagopen"] = '<ste:';
+ $needles["closetagopen"] = '</ste:';
+ }
+ if($flags & self::PARSE_SHORT) {
+ $needles["shortifopen"] = '?{';
+ $needles["shortcompopen"] = '~{';
+ }
+
+ if($separator !== NULL) {
+ $needles["sep"] = $separator;
+ }
+ if($breakon !== NULL) {
+ $needles["break"] = $breakon;
+ }
+
+ for(;;) {
+ list($which, $off, $before, $offbefore) = $this->search_multi($needles);
+
+ $astlist[] = new TextNode($this->name, $offbefore, $before);
+
+ switch($which) {
+ case NULL:
+ if($nullaction === NULL) {
+ $elems[] = $astlist;
+ return $elems;
+ } else {
+ call_user_func($nullaction);
+ }
+ break;
+ case "commentopen":
+ list($off, $before, $offbefore) = $this->search("</ste:comment>");
+ if($off === false) {
+ throw new ParseCompileError("ste:comment was not closed", $this->name, $offbefore);
+ }
+ break;
+ case "rawopen":
+ $off_start = $off;
+ list($off, $before, $offbefore) = $this->search("</ste:rawtext>");
+ if($off === false) {
+ throw new ParseCompileError("ste:rawtext was not closed", $this->name, $off_start);
+ }
+ $astlist[] = new TextNode($this->name, $off_start, $before);
+ break;
+ case "tagopen":
+ $astlist[] = $this->parse_tag($off);
+ break;
+ case "closetagopen":
+ $off_start = $off;
+ $name = $this->get_name();
+ $this->skip_ws();
+ $off = $this->off;
+ if($this->next() != ">") {
+ throw new ParseCompileError("Expected '>' in closing ste-Tag", $this->name, $off);
+ }
+
+ if($opentag === NULL) {
+ throw new ParseCompileError("Found closing ste:$name tag, but no tag was opened", $this->name, $off_start);
+ }
+ if($opentag != $name) {
+ throw new ParseCompileError("Open ste:$opentag was not closed", $this->name, $openedat);
+ }
+
+ $elems[] = $astlist;
+ return $elems;
+ case "escape":
+ $c = $this->next();
+ if(mb_strpos($escapes, $c) !== false) {
+ $astlist[] = new TextNode($this->name, $off, $c);
+ } else {
+ $astlist[] = new TextNode($this->name, $off, '\\');
+ $this->back();
+ }
+ break;
+ case "shortifopen":
+ $shortelems = $this->parse_short("?{", $off);
+ if(count($shortelems) != 3) {
+ throw new ParseCompileError("A short if tag must have the form ?{..|..|..}", $this->name, $off);
+ }
+
+ list($cond, $then, $else) = $shortelems;
+ $thentag = new TagNode($this->name, $off);
+ $thentag->name = "then";
+ $thentag->sub = $then;
+
+ $elsetag = new TagNode($this->name, $off);
+ $elsetag->name = "else";
+ $elsetag->sub = $else;
+
+ $iftag = new TagNode($this->name, $off);
+ $iftag->name = "if";
+ $iftag->sub = $cond;
+ $iftag->sub[] = $thentag;
+ $iftag->sub[] = $elsetag;
+
+ $astlist[] = $iftag;
+ break;
+ case "shortcompopen":
+ $shortelems = $this->parse_short("~{", $off);
+ if(count($shortelems) != 3) {
+ throw new ParseCompileError("A short comparasion tag must have the form ~{..|..|..}", $this->name, $off);
+ }
+
+ // TODO: What will happen, if a tag was in one of the elements?
+ list($a, $op, $b) = $shortelems;
+ $cmptag = new TagNode($this->name, $off);
+ $cmptag->name = "cmp";
+ $cmptag->params["text_a"] = $a;
+ $cmptag->params["op"] = $op;
+ $cmptag->params["text_b"] = $b;
+
+ $astlist[] = $cmptag;
+ break;
+ case "sep":
+ $elems[] = $astlist;
+ $astlist = array();
+ break;
+ case "varcurlyopen":
+ $astlist[] = $this->parse_var($off, true);
+ break;
+ case "var":
+ $astlist[] = $this->parse_var($off, false);
break;
+ case "break":
+ $elems[] = $astlist;
+ return $elems;
+ }
}
- if((!empty($tagstack)) or ($tag->name != $matches[2][0]))
- throw new ParseCompileError("Parse Error: Missing closing \"ste:" . $tag->name . "\"-Tag.", $tpl, $tag->offset);
+ $elems[] = $astlist;
+ return $elems;
+ }
+
+ private function parse_short($shortname, $openedat) {
+ $tplname = $this->name;
- $tag->sub = mk_ast(substr($code, 0, $last_tag_start), $tpl, $err_off);
- $code = substr($code, $off);
- $err_off += $off;
+ return $this->parse_text(
+ self::ESCAPES_DEFAULT, /* Escapes */
+ self::PARSE_SHORT | self::PARSE_TAG, /* Flags */
+ '}', /* Break on */
+ '|', /* Separator */
+ function() use ($shortname, $tplname, $openedat) { /* NULL action */
+ throw new ParseCompileError("Unclosed $shortname", $tplname, $openedat);
+ },
+ NULL, /* Open tag */
+ $openedat /* Opened at */
+ );
}
- if($tag !== NULL)
- $ast[] = $tag;
- return array_merge($ast, strlen($code) > 0 ? mk_ast($code, $tpl, $err_off) : array());
-}
-
-/*
- * Function: precompile
- * Precompiling STE T/PL templates.
- * You only need this function, if you want to manually transcompile a template.
- *
- * Parameters:
- * $code - The input code
- *
- * Returns:
- * The precompiled code.
- */
-function precompile($code)
-{
- $code = preg_replace( /* Transform short form of comparison (~{a|op|b}) to long form */
- "/(?:(?<!\\\\)~)(?:(?<!\\\\)\\{)(.*?)(?:(?<!\\\\)\\|)(.*?)(?:(?<!\\\\)\\|)(.*?)(?:(?<!\\\\)\\})/s",
- "<ste:cmp text_a=\"\$1\" op=\"\$2\" text_b=\"\$3\" />",
- $code
- );
- $code = preg_replace( /* Transform short form of if-clause (?{cond|then|else}) to long form */
- "/(?:(?<!\\\\)\\?)(?:(?<!\\\\)\\{)(.*?)(?:(?<!\\\\)\\|)(.*?)(?:(?<!\\\\)\\|)(.*?)(?:(?<!\\\\)\\})/s",
- "<ste:if>\$1<ste:then>\$2</ste:then><ste:else>\$3</ste:else></ste:if>",
- $code
- );
- /* Unescape \? \~ \{ \} \| */
- $code = preg_replace("/(?:(?<!\\\\)\\\\\\?)/s", "?", $code);
- $code = preg_replace("/(?:(?<!\\\\)\\\\~)/s", "~", $code);
- $code = preg_replace("/(?:(?<!\\\\)\\\\\\{)/s", "{", $code);
- $code = preg_replace("/(?:(?<!\\\\)\\\\\\})/s", "}", $code);
- $code = preg_replace("/(?:(?<!\\\\)\\\\\\|)/s", "|", $code);
+ private function parse_var($openedat, $curly) {
+ $varnode = new VariableNode($this->name, $openedat);
+ $varnode->name = $this->get_name();
+ $varnode->arrayfields = $this->parse_array();
+
+ if(($curly) && ($this->next() != "}")) {
+ throw new ParseCompileError("Unclosed '\${'", $this->name, $openedat);
+ }
+ return $varnode;
+ }
- return $code;
-}
-
-/*
- * Function: parse
- * Parsing a STE T/PL template.
- * You only need this function, if you want to manually transcompile a template.
- *
- * Parameters:
- * $code - The STE T/PL code.
- * $tpl - The name of the template.
- *
- * Returns:
- * An abstract syntax tree, which can be used with <transcompile>.
- */
-function parse($code, $tpl)
-{
- return mk_ast($code, $tpl, 0);
+ private function parse_array() {
+ $tplname = $this->name;
+
+ $arrayfields = array();
+
+ while($this->next() == "[") {
+ $openedat = $this->off - 1;
+ $res = $this->parse_text(
+ self::ESCAPES_DEFAULT, /* Escapes */
+ 0, /* Flags */
+ ']', /* Break on */
+ NULL, /* Separator */
+ function() use ($tplname, $openedat) { /* NULL action */
+ throw new ParseCompileError("Unclosed array access '[...]'", $tplname, $openedat);
+ },
+ NULL, /* Open tag */
+ $openedat /* Opened at */
+ );
+ $arrayfields[] = $res[0];
+ }
+
+ $this->back();
+ return $arrayfields;
+ }
+
+ private function parse_tag($openedat) {
+ $tplname = $this->name;
+
+ $this->skip_ws();
+ $tag = new TagNode($this->name, $openedat);
+ $name = $tag->name = $this->get_name();
+ $tag->params = array();
+ $tag->sub = array();
+
+ for(;;) {
+ $this->skip_ws();
+
+ switch($this->next()) {
+ case '/': /* Self-closing tag */
+ $this->skip_ws();
+ if($this->next() != '>') {
+ throw new ParseCompileError("Unclosed opening <ste: tag (expected >)", $this->name, $openedat);
+ }
+
+ return $tag;
+ case '>':
+ $sub = $this->parse_text(
+ self::ESCAPES_DEFAULT, /* Escapes */
+ self::PARSE_SHORT | self::PARSE_TAG, /* Flags */
+ NULL, /* Break on */
+ NULL, /* Separator */
+ function() use ($name, $tplname, $openedat) { /* NULL action */
+ throw new ParseCompileError("Open ste:$name tag was not closed", $tplname, $openedat);
+ },
+ $tag->name, /* Open tag */
+ $openedat /* Opened at */
+ );
+ $tag->sub = $sub[0];
+ return $tag;
+ default:
+ $this->back();
+
+ $param = $this->get_name();
+
+ $this->skip_ws();
+ if($this->next() != '=') {
+ throw new ParseCompileError("Expected '=' after tag parameter name", $this->name, $this->off - 1);
+ }
+ $this->skip_ws();
+
+ $quot = $this->next();
+ if(($quot != '"') && ($quot != "'")) {
+ throw new ParseCompileError("Expected ' or \" after '=' of tag parameter", $this->name, $this->off - 1);
+ }
+
+ $off = $this->off - 1;
+ $paramval = $this->parse_text(
+ self::ESCAPES_DEFAULT . $quot, /* Escapes */
+ 0, /* Flags */
+ $quot, /* Break on */
+ NULL, /* Separator */
+ function() use ($quot, $tplname, $off) { /* NULL action */
+ throw new ParseCompileError("Open tag parameter value ($quot) was not closed", $tplname, $off);
+ },
+ NULL, /* Open tag */
+ $off /* Opened at */
+ );
+ $tag->params[$param] = $paramval[0];
+ }
+ }
+ }
}
-function indent_code($code)
-{
+function indent_code($code) {
return implode(
"\n",
- array_map(
- function($line) { return "\t$line"; },
- explode("\n", $code)
- )
+ array_map(function($line) { return "\t$line"; }, explode("\n", $code))
);
}
/* We could also just eval() the $infix_math code, but this is much cooler :-D (Parser inception) */
-function shunting_yard($infix_math)
-{
+function shunting_yard($infix_math) {
$operators = array(
"+" => array("l", 2),
"-" => array("l", 2),
@@ -396,165 +566,156 @@ function shunting_yard($infix_math)
);
preg_match_all("/\s*(?:(?:[+\\-\\*\\/\\^\\(\\)])|(\\d*[\\.]?\\d*))\\s*/s", $infix_math, $tokens, PREG_PATTERN_ORDER);
- $tokens_raw = array_filter(array_map('trim', $tokens[0]), function($x) { return ($x === "0") or (!empty($x)); });
+ $tokens_raw = array_filter(array_map('trim', $tokens[0]), function($x) { return ($x === "0") || (!empty($x)); });
$output_queue = array();
$op_stack = array();
$lastpriority = NULL;
/* Make - unary, if neccessary */
$tokens = array();
- foreach($tokens_raw as $token)
- {
+ foreach($tokens_raw as $token) {
$priority = isset($operators[$token]) ? $operators[$token][1] : -1;
- if(($token == "-") and (($lastpriority === NULL) or ($lastpriority >= 0)))
- {
+ if(($token == "-") && (($lastpriority === NULL) || ($lastpriority >= 0))) {
$priority = $operators["_"][1];
$tokens[] = "_";
- }
- else
+ } else {
$tokens[] = $token;
+ }
$lastpriority = $priority;
}
- while(!empty($tokens))
- {
+ while(!empty($tokens)) {
$token = array_shift($tokens);
- if(is_numeric($token))
+ if(is_numeric($token)) {
$output_queue[] = $token;
- else if($token == "(")
+ } else if($token == "(") {
$op_stack[] = $token;
- else if($token == ")")
- {
- $lbr_found = False;
- while(!empty($op_stack))
- {
+ } else if($token == ")") {
+ $lbr_found = false;
+ while(!empty($op_stack)) {
$op = array_pop($op_stack);
- if($op == "(")
- {
- $lbr_found = True;
+ if($op == "(") {
+ $lbr_found = true;
break;
}
$output_queue[] = $op;
}
- if(!$lbr_found)
+ if(!$lbr_found) {
throw new RuntimeError("Bracket mismatch.");
- }
- else if(!isset($operators[$token]))
+ }
+ } else if(!isset($operators[$token])) {
throw new RuntimeError("Invalid token ($token): Not a number, bracket or operator. Stop.");
- else
- {
+ } else {
$priority = $operators[$token][1];
- if($operators[$token][0] == "l")
- while((!empty($op_stack)) and ($priority <= $operators[$op_stack[count($op_stack)-1]][1]))
+ if($operators[$token][0] == "l") {
+ while((!empty($op_stack)) and ($priority <= $operators[$op_stack[count($op_stack)-1]][1])) {
$output_queue[] = array_pop($op_stack);
- else
- while((!empty($op_stack)) and ($priority < $operators[$op_stack[count($op_stack)-1]][1]))
+ }
+ } else {
+ while((!empty($op_stack)) and ($priority < $operators[$op_stack[count($op_stack)-1]][1])) {
$output_queue[] = array_pop($op_stack);
+ }
+ }
$op_stack[] = $token;
}
}
- while(!empty($op_stack))
- {
+ while(!empty($op_stack)) {
$op = array_pop($op_stack);
- if($op == "(")
+ if($op == "(") {
throw new RuntimeError("Bracket mismatch...");
+ }
$output_queue[] = $op;
}
return $output_queue;
}
-function pop2(&$array)
-{
+function pop2(&$array) {
$rv = array(array_pop($array), array_pop($array));
- if(array_search(NULL, $rv, True) !== False)
+ if(array_search(NULL, $rv, true) !== false) {
throw new RuntimeError("Not enough numbers on stack. Invalid formula.");
+ }
return $rv;
}
-function calc_rpn($rpn)
-{
+function calc_rpn($rpn) {
$stack = array();
- foreach($rpn as $token)
- {
- switch($token)
- {
- case "+":
- list($b, $a) = pop2($stack);
- $stack[] = $a + $b;
- break;
- case "-":
- list($b, $a) = pop2($stack);
- $stack[] = $a - $b;
- break;
- case "*":
- list($b, $a) = pop2($stack);
- $stack[] = $a * $b;
- break;
- case "/":
- list($b, $a) = pop2($stack);
- $stack[] = $a / $b;
- break;
- case "^":
- list($b, $a) = pop2($stack);
- $stack[] = pow($a, $b);
- break;
- case "_":
- $a = array_pop($stack);
- if($a === NULL)
- throw new RuntimeError("Not enough numbers on stack. Invalid formula.");
- $stack[] = -$a;
- break;
- default:
- $stack[] = $token;
- break;
+ foreach($rpn as $token) {
+ switch($token) {
+ case "+":
+ list($b, $a) = pop2($stack);
+ $stack[] = $a + $b;
+ break;
+ case "-":
+ list($b, $a) = pop2($stack);
+ $stack[] = $a - $b;
+ break;
+ case "*":
+ list($b, $a) = pop2($stack);
+ $stack[] = $a * $b;
+ break;
+ case "/":
+ list($b, $a) = pop2($stack);
+ $stack[] = $a / $b;
+ break;
+ case "^":
+ list($b, $a) = pop2($stack);
+ $stack[] = pow($a, $b);
+ break;
+ case "_":
+ $a = array_pop($stack);
+ if($a === NULL) {
+ throw new RuntimeError("Not enough numbers on stack. Invalid formula.");
+ }
+ $stack[] = -$a;
+ break;
+ default:
+ $stack[] = $token;
+ break;
}
}
return array_pop($stack);
}
-function loopbody($code)
-{
+function loopbody($code) {
return "try\n{\n" . indent_code($code) . "\n}\ncatch(\ste\BreakException \$e) { break; }\ncatch(\ste\ContinueException \$e) { continue; }\n";
}
$ste_builtins = array(
- "if" => function($ast)
- {
+ "if" => function($ast) {
$output = "";
$condition = array();
$then = NULL;
$else = NULL;
- foreach($ast->sub as $node)
- {
- if(($node instanceof TagNode) and ($node->name == "then"))
+ foreach($ast->sub as $node) {
+ if(($node instanceof TagNode) and ($node->name == "then")) {
$then = $node->sub;
- else if(($node instanceof TagNode) and ($node->name == "else"))
+ } else if(($node instanceof TagNode) and ($node->name == "else")) {
$else = $node->sub;
- else
+ } else {
$condition[] = $node;
+ }
}
- if($then === NULL)
+ if($then === NULL) {
throw new ParseCompileError("Transcompile error: Missing <ste:then> in <ste:if>.", $ast->tpl, $ast->offset);
+ }
$output .= "\$outputstack[] = \"\";\n\$outputstack_i++;\n";
$output .= _transcompile($condition);
$output .= "\$outputstack_i--;\nif(\$ste->evalbool(array_pop(\$outputstack)))\n{\n";
$output .= indent_code(_transcompile($then));
$output .= "\n}\n";
- if($else !== NULL)
- {
+ if($else !== NULL) {
$output .= "else\n{\n";
$output .= indent_code(_transcompile($else));
$output .= "\n}\n";
}
return $output;
},
- "cmp" => function($ast)
- {
+ "cmp" => function($ast) {
$operators = array(
array('eq', '=='),
array('neq', '!='),
@@ -566,42 +727,48 @@ $ste_builtins = array(
$code = "";
- if(isset($ast->params["var_b"]))
- $b = '$ste->get_var_by_name(' . _transcompile($ast->params["var_b"], True) . ')';
- else if(isset($ast->params["text_b"]))
- $b = _transcompile($ast->params["text_b"], True);
- else
+ if(isset($ast->params["var_b"])) {
+ list($val, $pre) = _transcompile($ast->params["var_b"], true);
+ $code .= $pre;
+ $b = '$ste->get_var_by_name(' . $val . ')';
+ } else if(isset($ast->params["text_b"])) {
+ list($b, $pre) = _transcompile($ast->params["text_b"], true);
+ $code .= $pre;
+ } else {
throw new ParseCompileError("Transcompile error: neiter var_b nor text_b set in <ste:cmp>.", $ast->tpl, $ast->offset);
+ }
- if(isset($ast->params["var_a"]))
- $a = '$ste->get_var_by_name(' . _transcompile($ast->params["var_a"], True) . ')';
- else if(isset($ast->params["text_a"]))
- $a = _transcompile($ast->params["text_a"], True);
- else
+ if(isset($ast->params["var_a"])) {
+ list($val, $pre) = _transcompile($ast->params["var_a"], true);
+ $code .= $pre;
+ $a = '$ste->get_var_by_name(' . $val . ')';
+ } else if(isset($ast->params["text_a"])) {
+ list($a, $pre) = _transcompile($ast->params["text_a"], true);
+ $code .= $pre;
+ } else {
throw new ParseCompileError("Transcompile error: neiter var_a nor text_a set in <ste:cmp>.", $ast->tpl, $ast->offset);
+ }
- if(!isset($ast->params["op"]))
+ if(!isset($ast->params["op"])) {
throw new ParseCompileError("Transcompile error: op not given in <ste:cmp>.", $ast->tpl, $ast->offset);
- if((count($ast->params["op"]) == 1) and ($ast->params["op"][0] instanceof TextNode))
- {
+ }
+ if((count($ast->params["op"]) == 1) and ($ast->params["op"][0] instanceof TextNode)) {
/* Operator is known at compile time, this saves *a lot* of output code! */
$op = trim($ast->params["op"][0]->text);
$op_php = NULL;
- foreach($operators as $v)
- {
- if($v[0] == $op)
- {
+ foreach($operators as $v) {
+ if($v[0] == $op) {
$op_php = $v[1];
break;
}
}
- if($op_php === NULL)
+ if($op_php === NULL) {
throw new ParseCompileError("Transcompile Error: Unknown operator in <ste:cmp>", $ast->tpl, $ast->offset);
+ }
$code .= "\$outputstack[\$outputstack_i] .= (($a) $op_php ($b)) ? 'yes' : '';\n";
- }
- else
- {
- $code .= "switch(trim(" . _transcompile($ast->params["op"], True) . "))\n{\n\t";
+ } else {
+ list($val, $pre) = _transcompile($ast->params["op"], true);
+ $code .= $pre . "switch(trim(" . $val . "))\n{\n\t";
$code .= implode("", array_map(
function($op) use ($a,$b)
{
@@ -613,49 +780,57 @@ $ste_builtins = array(
}
return $code;
},
- "not" => function($ast)
- {
+ "not" => function($ast) {
$code = "\$outputstack[] = '';\n\$outputstack_i++;\n";
$code .= _transcompile($ast->sub);
$code .= "\$outputstack_i--;\n\$outputstack[\$outputstack_i] .= (!\$ste->evalbool(array_pop(\$outputstack))) ? 'yes' : '';\n";
return $code;
},
- "even" => function($ast)
- {
+ "even" => function($ast) {
$code = "\$outputstack[] = '';\n\$outputstack_i++;\n";
$code .= _transcompile($ast->sub);
$code .= "\$outputstack_i--;\n\$tmp_even = array_pop(\$outputstack);\n\$outputstack[\$outputstack_i] .= (is_numeric(\$tmp_even) and (\$tmp_even % 2 == 0)) ? 'yes' : '';\n";
return $code;
},
- "for" => function($ast)
- {
+ "for" => function($ast) {
$code = "";
- $loopname = "forloop_" . str_replace(".", "_", uniqid("",True));
- if(empty($ast->params["start"]))
+ $loopname = "forloop_" . str_replace(".", "_", uniqid("",true));
+ if(empty($ast->params["start"])) {
throw new ParseCompileError("Transcompile error: Missing 'start' parameter in <ste:for>.", $ast->tpl, $ast->offset);
- $code .= "\$${loopname}_start = " . _transcompile($ast->params["start"], True) . ";\n";
+ }
+ list($val, $pre) = _transcompile($ast->params["start"], true);
+ $code .= $pre;
+ $code .= "\$${loopname}_start = " . $val . ";\n";
- if(empty($ast->params["stop"]))
+ if(empty($ast->params["stop"])) {
throw new ParseCompileError("Transcompile error: Missing 'end' parameter in <ste:for>.", $ast->tpl, $ast->offset);
- $code .= "\$${loopname}_stop = " . _transcompile($ast->params["stop"], True) . ";\n";
+ }
+ list($val, $pre) = _transcompile($ast->params["stop"], true);
+ $code .= $pre;
+ $code .= "\$${loopname}_stop = " . $val . ";\n";
$step = NULL; /* i.e. not known at compilation time */
- if(empty($ast->params["step"]))
+ if(empty($ast->params["step"])) {
$step = 1;
- else if((count($ast->params["step"]) == 1) and ($ast->params["step"][0] instanceof TextNode))
+ } else if((count($ast->params["step"]) == 1) and ($ast->params["step"][0] instanceof TextNode)) {
$step = $ast->params["step"][0]->text + 0;
- else
- $code .= "\$${loopname}_step = " . _transcompile($ast->params["step"], True) . ";\n";
+ } else {
+ list($val, $pre) = _transcompile($ast->params["step"], true);
+ $code .= $pre;
+ $code .= "\$${loopname}_step = " . $val . ";\n";
+ }
- if(!empty($ast->params["counter"]))
- $code .= "\$${loopname}_countername = " . _transcompile($ast->params["counter"], True) . ";\n";
+ if(!empty($ast->params["counter"])) {
+ list($val, $pre) = _transcompile($ast->params["counter"], true);
+ $code .= $pre;
+ $code .= "\$${loopname}_countername = " . $val . ";\n";
+ }
$loopbody = empty($ast->params["counter"]) ? "" : "\$ste->set_var_by_name(\$${loopname}_countername, \$${loopname}_counter);\n";
$loopbody .= _transcompile($ast->sub);
$loopbody = indent_code("{\n" . loopbody(indent_code($loopbody)) . "\n}\n");
- if($step === NULL)
- {
+ if($step === NULL) {
$code .= "if(\$${loopname}_step == 0)\n\tthrow new \\ste\\RuntimeError('step can not be 0 in <ste:for>.');\n";
$code .= "if(\$${loopname}_step > 0)\n{\n";
$code .= "\tfor(\$${loopname}_counter = \$${loopname}_start; \$${loopname}_counter <= \$${loopname}_stop; \$${loopname}_counter += \$${loopname}_step)\n";
@@ -664,47 +839,58 @@ $ste_builtins = array(
$code .= "\tfor(\$${loopname}_counter = \$${loopname}_start; \$${loopname}_counter >= \$${loopname}_stop; \$${loopname}_counter += \$${loopname}_step)\n";
$code .= $loopbody;
$code .= "\n}\n";
- }
- else if($step == 0)
+ } else if($step == 0) {
throw new ParseCompileError("Transcompile Error: step can not be 0 in <ste:for>.", $ast->tpl, $ast->offset);
- else if($step > 0)
+ } else if($step > 0) {
$code .= "for(\$${loopname}_counter = \$${loopname}_start; \$${loopname}_counter <= \$${loopname}_stop; \$${loopname}_counter += $step)\n$loopbody\n";
- else
+ } else {
$code .= "for(\$${loopname}_counter = \$${loopname}_start; \$${loopname}_counter >= \$${loopname}_stop; \$${loopname}_counter += $step)\n$loopbody\n";
+ }
return $code;
},
- "foreach" => function($ast)
- {
- $loopname = "foreachloop_" . str_replace(".", "_", uniqid("",True));
+ "foreach" => function($ast) {
+ $loopname = "foreachloop_" . str_replace(".", "_", uniqid("",true));
$code = "";
- if(empty($ast->params["array"]))
+ if(empty($ast->params["array"])) {
throw new ParseCompileError("Transcompile Error: array not given in <ste:foreach>.", $ast->tpl, $ast->offset);
- $code .= "\$${loopname}_arrayvar = " . _transcompile($ast->params["array"], True) . ";\n";
+ }
+ list($val, $pre) = _transcompile($ast->params["array"], true);
+ $code .= $pre;
+ $code .= "\$${loopname}_arrayvar = " . $val . ";\n";
- if(empty($ast->params["value"]))
+ if(empty($ast->params["value"])) {
throw new ParseCompileError("Transcompile Error: value not given in <ste:foreach>.", $ast->tpl, $ast->offset);
- $code .= "\$${loopname}_valuevar = " . _transcompile($ast->params["value"], True) . ";\n";
+ }
+ list($val, $pre) = _transcompile($ast->params["value"], true);
+ $code .= $pre;
+ $code .= "\$${loopname}_valuevar = " . $val . ";\n";
- if(!empty($ast->params["key"]))
- $code .= "\$${loopname}_keyvar = " . _transcompile($ast->params["key"], True) . ";\n";
+ if(!empty($ast->params["key"])) {
+ list($val, $pre) = _transcompile($ast->params["key"], true);
+ $code .= $pre;
+ $code .= "\$${loopname}_keyvar = " . $val . ";\n";
+ }
- if(!empty($ast->params["counter"]))
- $code .= "\$${loopname}_countervar = " . _transcompile($ast->params["counter"], True) . ";\n";
+ if(!empty($ast->params["counter"])) {
+ list($val, $pre) = _transcompile($ast->params["counter"], true);
+ $code .= $pre;
+ $code .= "\$${loopname}_countervar = " . $val . ";\n";
+ }
$loopbody = "";
$code .= "\$${loopname}_array = \$ste->get_var_by_name(\$${loopname}_arrayvar);\n";
$code .= "if(!is_array(\$${loopname}_array))\n\t\$${loopname}_array = array();\n";
- if(!empty($ast->params["counter"]))
- {
+ if(!empty($ast->params["counter"])) {
$code .= "\$${loopname}_counter = -1;\n";
$loopbody .= "\$${loopname}_counter++;\n\$ste->set_var_by_name(\$${loopname}_countervar, \$${loopname}_counter);\n";
}
$loopbody .= "\$ste->set_var_by_name(\$${loopname}_valuevar, \$${loopname}_value);\n";
- if(!empty($ast->params["key"]))
+ if(!empty($ast->params["key"])) {
$loopbody .= "\$ste->set_var_by_name(\$${loopname}_keyvar, \$${loopname}_key);\n";
+ }
$loopbody .= "\n";
$loopbody .= _transcompile($ast->sub);
$loopbody = "{\n" . loopbody(indent_code($loopbody)) . "\n}\n";
@@ -713,55 +899,58 @@ $ste_builtins = array(
return $code;
},
- "infloop" => function($ast)
- {
- return "while(True)\n{\n" . indent_code(loopbody(indent_code(_transcompile($ast->sub)))) . "\n}\n";
+ "infloop" => function($ast) {
+ return "while(true)\n{\n" . indent_code(loopbody(indent_code(_transcompile($ast->sub)))) . "\n}\n";
},
- "break" => function($ast)
- {
+ "break" => function($ast) {
return "throw new \\ste\\BreakException();\n";
},
- "continue" => function($ast)
- {
+ "continue" => function($ast) {
return "throw new \\ste\\ContinueException();\n";
},
- "block" => function($ast)
- {
- if(empty($ast->params["name"]))
+ "block" => function($ast) {
+ if(empty($ast->params["name"])) {
throw new ParseCompileError("Transcompile Error: name missing in <ste:block>.", $ast->tpl, $ast->offset);
+ }
- $blknamevar = "blockname_" . str_replace(".", "_", uniqid("", True));
+ $blknamevar = "blockname_" . str_replace(".", "_", uniqid("", true));
- $code = "\$${blknamevar} = " . _transcompile($ast->params["name"], True) . ";\n";
+ list($val, $code) = _transcompile($ast->params["name"], true);
+ $code .= "\$${blknamevar} = " . $val . ";\n";
- $tmpblk = uniqid("", True);
+ $tmpblk = uniqid("", true);
$code .= "\$ste->blocks['$tmpblk'] = array_pop(\$outputstack);\n\$ste->blockorder[] = '$tmpblk';\n\$outputstack = array('');\n\$outputstack_i = 0;\n";
$code .= _transcompile($ast->sub);
$code .= "\$ste->blocks[\$${blknamevar}] = array_pop(\$outputstack);\n";
- $code .= "if(array_search(\$${blknamevar}, \$ste->blockorder) === FALSE)\n\t\$ste->blockorder[] = \$${blknamevar};\n\$outputstack = array('');\n\$outputstack_i = 0;\n";
+ $code .= "if(array_search(\$${blknamevar}, \$ste->blockorder) === false)\n\t\$ste->blockorder[] = \$${blknamevar};\n\$outputstack = array('');\n\$outputstack_i = 0;\n";
return $code;
},
- "load" => function($ast)
- {
- if(empty($ast->params["name"]))
+ "load" => function($ast) {
+ if(empty($ast->params["name"])) {
throw new ParseCompileError("Transcompile Error: name missing in <ste:load>.", $ast->tpl, $ast->offset);
+ }
- return "\$outputstack[\$outputstack_i] .= \$ste->load(" . _transcompile($ast->params["name"], True) . ");\n";
+ list($val, $code) = _transcompile($ast->params["name"], true);
+ $code .= "\$outputstack[\$outputstack_i] .= \$ste->load(" . $val . ");\n";
+ return $code;
},
- "mktag" => function($ast)
- {
- if(empty($ast->params["name"]))
+ "mktag" => function($ast) {
+ $code = "";
+
+ if(empty($ast->params["name"])) {
throw new ParseCompileError("Transcompile Error: name missing in <ste:mktag>.", $ast->tpl, $ast->offset);
+ }
- $tagname = _transcompile($ast->params["name"], True);
+ $fxbody = "\$outputstack = array(''); \$outputstack_i = 0;\$ste->vars['_tag_parameters'] = \$params;\n";
- $fxbody = "\$outputstack = array(); \$outputstack_i = 0;\$ste->vars['_tag_parameters'] = \$params;\n";
+ list($tagname, $tagname_pre) = _transcompile($ast->params["name"], true);
- if(!empty($ast->params["mandatory"]))
- {
+ $usemandatory = "";
+ if(!empty($ast->params["mandatory"])) {
+ $usemandatory = " use (\$mandatory_params)";
$code .= "\$outputstack[] = '';\n\$outputstack_i++;\n";
$code .= _transcompile($ast->params["mandatory"]);
$code .= "\$outputstack_i--;\n\$mandatory_params = explode('|', array_pop(\$outputstack));\n";
@@ -772,37 +961,40 @@ $ste_builtins = array(
$fxbody .= _transcompile($ast->sub);
$fxbody .= "return array_pop(\$outputstack);";
- $code .= "\$tag_fx = function(\$ste, \$params, \$sub) use (\$mandatory_params)\n{\n" . indent_code($fxbody) . "\n};\n";
+ $code .= "\$tag_fx = function(\$ste, \$params, \$sub)" . $usemandatory . "\n{\n" . indent_code($fxbody) . "\n};\n";
+ $code .= $tagname_pre;
$code .= "\$ste->register_tag($tagname, \$tag_fx);\n";
return $code;
},
- "tagcontent" => function($ast)
- {
+ "tagcontent" => function($ast) {
return "\$outputstack[\$outputstack_i] .= \$sub(\$ste);";
},
- "set" => function($ast)
- {
- if(empty($ast->params["var"]))
+ "set" => function($ast) {
+ if(empty($ast->params["var"])) {
throw new ParseCompileError("Transcompile Error: var missing in <ste:set>.", $ast->tpl, $ast->offset);
+ }
$code = "\$outputstack[] = '';\n\$outputstack_i++;\n";
$code .= _transcompile($ast->sub);
$code .= "\$outputstack_i--;\n";
- $code .= "\$ste->set_var_by_name(" . _transcompile($ast->params["var"], True) . ", array_pop(\$outputstack));\n";
+ list($val, $pre) = _transcompile($ast->params["var"], true);
+ $code .= $pre;
+ $code .= "\$ste->set_var_by_name(" . $val . ", array_pop(\$outputstack));\n";
return $code;
},
- "get" => function($ast)
- {
- if(empty($ast->params["var"]))
+ "get" => function($ast) {
+ if(empty($ast->params["var"])) {
throw new ParseCompileError("Transcompile Error: var missing in <ste:get>.", $ast->tpl, $ast->offset);
+ }
- return "\$outputstack[\$outputstack_i] .= \$ste->get_var_by_name(" . _transcompile($ast->params["var"], True) . ");";
+ list($val, $pre) = _transcompile($ast->params["var"], true);
+ $code .= $pre;
+ return "\$outputstack[\$outputstack_i] .= \$ste->get_var_by_name(" . $val . ");";
},
- "calc" => function($ast)
- {
+ "calc" => function($ast) {
$code = "\$outputstack[] = '';\n\$outputstack_i++;\n";
$code .= _transcompile($ast->sub);
$code .= "\$outputstack_i--;\n\$outputstack[\$outputstack_i] .= \$ste->calc(array_pop(\$outputstack));\n";
@@ -811,40 +1003,36 @@ $ste_builtins = array(
}
);
-function escape_text($text)
-{
+function escape_text($text) {
return addcslashes($text, "\r\n\t\$\0..\x1f\\\"\x7f..\xff");
}
-function _transcompile($ast, $no_outputstack = False) /* The real transcompile function, does not add boilerplate code. */
-{
+function _transcompile($ast, $avoid_outputstack = false) { /* The real transcompile function, does not add boilerplate code. */
$code = "";
global $ste_builtins;
$text_and_var_buffer = array();
- foreach($ast as $node)
- {
- if($node instanceof TextNode)
+ foreach($ast as $node) {
+ if($node instanceof TextNode) {
$text_and_var_buffer[] = '"' . escape_text($node->text) . '"';
- else if($node instanceof VariableNode)
+ } else if($node instanceof VariableNode) {
$text_and_var_buffer[] = $node->transcompile();
- else if($node instanceof TagNode)
- {
- if(!empty($text_and_var_buffer))
- {
+ } else if($node instanceof TagNode) {
+ if(!empty($text_and_var_buffer)) {
$code .= "\$outputstack[\$outputstack_i] .= " . implode (" . ", $text_and_var_buffer) . ";\n";
$text_and_var_buffer = array();
}
- if(isset($ste_builtins[$node->name]))
+ if(isset($ste_builtins[$node->name])) {
$code .= $ste_builtins[$node->name]($node);
- else
- {
- $paramarray = "parameters_" . str_replace(".", "_", uniqid("", True));
+ } else {
+ $paramarray = "parameters_" . str_replace(".", "_", uniqid("", true));
$code .= "\$$paramarray = array();\n";
- foreach($node->params as $pname => $pcontent)
- $code .= "\$${paramarray}['" . escape_text($pname) . "'] = " . _transcompile($pcontent, True) . ";\n";
+ foreach($node->params as $pname => $pcontent) {
+ list($pval, $pre) = _transcompile($pcontent, true);
+ $code .= $pre . "\$${paramarray}['" . escape_text($pname) . "'] = " . $pval . ";\n";
+ }
$code .= "\$outputstack[\$outputstack_i] .= \$ste->call_tag('" . escape_text($node->name) . "', \$${paramarray}, ";
$code .= empty($node->sub) ? "function(\$ste) { return ''; }" : transcompile($node->sub);
@@ -853,18 +1041,19 @@ function _transcompile($ast, $no_outputstack = False) /* The real transcompile f
}
}
- if(!empty($text_and_var_buffer))
- {
- if(!$no_outputstack)
- $code .= "\$outputstack[\$outputstack_i] .= ";
- $code .= implode (" . ", $text_and_var_buffer);
- if(!$no_outputstack)
- $code .= ";\n";
- $text_and_var_buffer = array();
+ if($avoid_outputstack && ($code == "")) {
+ return array(implode (" . ", $text_and_var_buffer), "");
}
- else if($no_outputstack)
- {
- $code = "\"\"";
+
+ if(!empty($text_and_var_buffer)) {
+ $code .= "\$outputstack[\$outputstack_i] .= ". implode (" . ", $text_and_var_buffer) . ";\n";
+ }
+
+ if($avoid_outputstack) {
+ $tmpvar = "tmp_" . str_replace(".", "_", uniqid("",true));
+ $code = "\$outputstack[] = '';\n\$outputstack_i++;" . $code;
+ $code .= "\$$tmpvar = array_pop(\$outputstack);\n\$outputstack_i--;\n";
+ return array("\$$tmpvar", $code);
}
return $code;
@@ -883,8 +1072,7 @@ $ste_transc_boilerplate = "\$outputstack = array('');\n\$outputstack_i = 0;\n";
* Returns:
* PHP code. The PHP code is an anonymous function expecting a <STECore> instance as its parameter and returns a string (everything that was not pached into a section).
*/
-function transcompile($ast) /* Transcompile and add some boilerplate code. */
-{
+function transcompile($ast) { /* Transcompile and add some boilerplate code. */
global $ste_transc_boilerplate;
return "function(\$ste)\n{\n" . indent_code($ste_transc_boilerplate . _transcompile($ast) . "return array_pop(\$outputstack);") . "\n}";
}
@@ -918,8 +1106,7 @@ class CantSaveTemplate extends StorageAccessFailure { }
* A StorageAccess implementation is used to access the templates from any storage.
* This means, that you are not limited to store the Templates inside directories, you can also use a database or something else.
*/
-interface StorageAccess
-{
+interface StorageAccess {
/*
* Function: load
* Loading a template.
@@ -957,8 +1144,7 @@ interface StorageAccess
* Class: FilesystemStorageAccess
* The default <StorageAccess> implementation for loading / saving templates into a directory structure.
*/
-class FilesystemStorageAccess implements StorageAccess
-{
+class FilesystemStorageAccess implements StorageAccess {
protected $sourcedir;
protected $transcompileddir;
@@ -969,62 +1155,51 @@ class FilesystemStorageAccess implements StorageAccess
* $src - The directory with the sources (Writing permissions are not mandatory, because STE does not save template sources).
* $transc - The directory with the transcompiled templates (the PHP instance / the HTTP Server needs writing permissions to this directory).
*/
- public function __construct($src, $transc)
- {
+ public function __construct($src, $transc) {
$this->sourcedir = $src;
$this->transcompileddir = $transc;
}
- public function load($tpl, &$mode)
- {
+ public function load($tpl, &$mode) {
$src_fn = $this->sourcedir . "/" . $tpl;
$transc_fn = $this->transcompileddir . "/" . $tpl . ".php";
- if($mode == MODE_SOURCE)
- {
+ if($mode == MODE_SOURCE) {
$content = @file_get_contents($src_fn);
- if($content === False)
+ if($content === false) {
throw new CantLoadTemplate("Template not found.");
+ }
return $content;
}
$src_stat = @stat($src_fn);
$transc_stat = @stat($transc_fn);
- if(($src_stat === False) and ($transc_stat === False))
+ if(($src_stat === false) and ($transc_stat === false)) {
throw new CantLoadTemplate("Template not found.");
- else if($transc_stat === False)
- {
+ } else if($transc_stat === false) {
$mode = MODE_SOURCE;
return file_get_contents($src_fn);
- }
- else if($src_stat === False)
- {
+ } else if($src_stat === false) {
include($transc_fn);
return $transcompile_fx;
- }
- else
- {
- if($src_stat["mtime"] > $transc_stat["mtime"])
- {
+ } else {
+ if($src_stat["mtime"] > $transc_stat["mtime"]) {
$mode = MODE_SOURCE;
return file_get_contents($src_fn);
- }
- else
- {
+ } else {
include($transc_fn);
return $transcompile_fx;
}
}
}
- public function save($tpl, $data, $mode)
- {
+ public function save($tpl, $data, $mode) {
$fn = (($mode == MODE_SOURCE) ? $this->sourcedir : $this->transcompileddir) . "/" . $tpl . (($mode == MODE_TRANSCOMPILED) ? ".php" : "");
- @mkdir(dirname($fn), 0777, True);
- if(file_put_contents($fn, "<?php \$transcompile_fx = $data; ?>") === False)
+ @mkdir(dirname($fn), 0777, true);
+ if(file_put_contents($fn, "<?php \$transcompile_fx = $data; ?>") === false) {
throw new CantSaveTemplate("Unable to save template.");
-
+ }
}
}
@@ -1035,8 +1210,7 @@ class ContinueException extends \Exception { }
* Class: STECore
* The Core of STE
*/
-class STECore
-{
+class STECore {
private $tags;
private $storage_access;
private $cur_tpl_dir;
@@ -1047,14 +1221,14 @@ class STECore
* $blocks - Associative array of blocks (see the language definition).
* $blockorder - The order of the blocks (an array)
* $vars - Associative array of all template variables. Use this to pass data to your templates.
- * $mute_runtime_errors - If True (default) a <RuntimeError> exception will result in no output from the tag, if False a error message will be written to output.
- * $fatal_error_on_missing_tag - If True, STE will throw a <FatalRuntimeError> if a tag was called that was not registered, otherwise (default) a regular <RuntimeError> will be thrown and automatically handled by STE (see <$mute_runtime_errors>).
+ * $mute_runtime_errors - If true (default) a <RuntimeError> exception will result in no output from the tag, if false a error message will be written to output.
+ * $fatal_error_on_missing_tag - If true, STE will throw a <FatalRuntimeError> if a tag was called that was not registered, otherwise (default) a regular <RuntimeError> will be thrown and automatically handled by STE (see <$mute_runtime_errors>).
*/
public $blocks;
public $blockorder;
public $vars;
- public $mute_runtime_errors = True;
- public $fatal_error_on_missing_tag = False;
+ public $mute_runtime_errors = true;
+ public $fatal_error_on_missing_tag = false;
/*
* Constructor: __construct
@@ -1062,8 +1236,7 @@ class STECore
* Parameters:
* $storage_access - An Instance of a <StorageAccess> implementation.
*/
- public function __construct($storage_access)
- {
+ public function __construct($storage_access) {
$this->storage_access = $storage_access;
$this->cur_tpl_dir = "/";
STEStandardLibrary::_register_lib($this);
@@ -1083,12 +1256,13 @@ class STECore
* Throws:
* An Exception if the tag could not be registered (if $callback is not callable or if $name is empty)
*/
- public function register_tag($name, $callback)
- {
- if(!is_callable($callback))
+ public function register_tag($name, $callback) {
+ if(!is_callable($callback)) {
throw new \Exception("Can not register tag \"$name\", not callable.");
- if(empty($name))
+ }
+ if(empty($name)) {
throw new \Exception("Can not register tag, empty name.");
+ }
$this->tags[$name] = $callback;
}
@@ -1107,28 +1281,24 @@ class STECore
* Returns:
* The output of the tag or, if a <RuntimeError> was thrown, the appropiate result (see <$mute_runtime_errors>).
*/
- public function call_tag($name, $params, $sub)
- {
- try
- {
- if(!isset($this->tags[$name]))
- {
- if($this->fatal_error_on_missing_tag)
+ public function call_tag($name, $params, $sub) {
+ try {
+ if(!isset($this->tags[$name])) {
+ if($this->fatal_error_on_missing_tag) {
throw new FatalRuntimeError("Can not call tag \"$name\": Does not exist.");
- else
+ } else {
throw new RuntimeError("Can not call tag \"$name\": Does not exist.");
+ }
}
return call_user_func($this->tags[$name], $this, $params, $sub);
- }
- catch(RuntimeError $e)
- {
- if(!$this->mute_runtime_errors)
+ } catch(RuntimeError $e) {
+ if(!$this->mute_runtime_errors) {
return "RuntimeError occurred on tag '$name': " . $e->getMessage();
+ }
}
}
- public function calc($expression)
- {
+ public function calc($expression) {
return calc_rpn(shunting_yard($expression));
}
@@ -1148,13 +1318,13 @@ class STECore
* Returns:
* The output of the template.
*/
- public function exectemplate($tpl)
- {
+ public function exectemplate($tpl) {
$output = "";
$lastblock = $this->load($tpl);
- foreach($this->blockorder as $blockname)
+ foreach($this->blockorder as $blockname) {
$output .= $this->blocks[$blockname];
+ }
return $output . $lastblock;
}
@@ -1175,47 +1345,39 @@ class STECore
* A Reference to the variable.
*/
- public function &get_var_reference($name, $create_if_not_exist)
- {
+ public function &get_var_reference($name, $create_if_not_exist) {
$ref = &$this->_get_var_reference($this->vars, $name, $create_if_not_exist);
return $ref;
}
- private function &_get_var_reference(&$from, $name, $create_if_not_exist)
- {
+ private function &_get_var_reference(&$from, $name, $create_if_not_exist) {
$bracket_open = strpos($name, "[");
- if($bracket_open === False)
- {
- if(isset($from[$name]) or $create_if_not_exist)
- {
+ if($bracket_open === false) {
+ if(isset($from[$name]) or $create_if_not_exist) {
$ref = &$from[$name];
return $ref;
- }
- else
+ } else {
return NULL;
- }
- else
- {
+ }
+ } else {
$old_varname = $varname;
$bracket_close = strpos($name, "]", $bracket_open);
- if($bracket_close === FALSE)
+ if($bracket_close === false) {
throw new RuntimeError("Invalid varname \"$varname\". Missing closing \"]\".");
+ }
$varname = substr($name, 0, $bracket_open);
$name = substr($name, $bracket_open + 1, $bracket_close - $bracket_open - 1) . substr($name, $bracket_close + 1);
- if(!is_array($from[$varname]))
- {
- if($create_if_not_exist)
+ if(!is_array($from[$varname])) {
+ if($create_if_not_exist) {
$from[$varname] = array();
- else
+ } else {
return NULL;
+ }
}
- try
- {
+ try {
$ref = &$this->_get_var_reference($from[$varname], $name, $create_if_not_exist);
return $ref;
- }
- catch(Exception $e)
- {
+ } catch(Exception $e) {
throw new RuntimeError("Invalid varname \"$old_varname\". Missing closing \"]\".");
}
}
@@ -1233,9 +1395,8 @@ class STECore
* Throws:
* <RuntimeError> if the variable name can not be parsed (e.g. unbalanced brackets).
*/
- public function set_var_by_name($name, $val)
- {
- $ref = &$this->_get_var_reference($this->vars, $name, True);
+ public function set_var_by_name($name, $val) {
+ $ref = &$this->_get_var_reference($this->vars, $name, true);
$ref = $val;
}
@@ -1253,9 +1414,8 @@ class STECore
* Returns:
* The variables value.
*/
- public function get_var_by_name($name)
- {
- $ref = $this->_get_var_reference($this->vars, $name, False);
+ public function get_var_by_name($name) {
+ $ref = $this->_get_var_reference($this->vars, $name, false);
return $ref === NULL ? "" : $ref;
}
@@ -1276,44 +1436,38 @@ class STECore
* Returns:
* The result of the template (if $quiet == false).
*/
- public function load($tpl, $quiet=False)
- {
+ public function load($tpl, $quiet = false) {
$tpldir_b4 = $this->cur_tpl_dir;
/* Resolve ".", ".." and protect from possible LFI */
$tpl = str_replace("\\", "/", $tpl);
- if($tpl[0] != "/")
+ if($tpl[0] != "/") {
$tpl = $this->cur_tpl_dir . "/" . $tpl;
+ }
$pathex = array_filter(explode("/", $tpl), function($s) { return ($s != ".") and (!empty($s)); });
$pathex = array_merge($pathex);
- while(($i = array_search("..", $pathex)) !== False)
- {
- if($i == 0)
+ while(($i = array_search("..", $pathex)) !== false) {
+ if($i == 0) {
$pathex = array_slice($pathex, 1);
- else
+ } else {
$pathex = array_merge(array_slice($pathex, 0, $i), array_slice($pathex, $i + 2));
+ }
}
$tpl = implode("/", $pathex);
$this->cur_tpl_dir = dirname($tpl);
- if($quiet)
- {
+ if($quiet) {
$blocks_back = clone $this->blocks;
$blockorder_back = clone $this->blockorder;
}
$mode = MODE_TRANSCOMPILED;
$content = $this->storage_access->load($tpl, $mode);
- if($mode == MODE_SOURCE)
- {
- $content = precompile($content);
- try
- {
- $ast = parse($content, $tpl);
+ if($mode == MODE_SOURCE) {
+ try {
+ $ast = Parser::parse($content, $tpl);
$transc = transcompile($ast);
- }
- catch(ParseCompileError $e)
- {
+ } catch(ParseCompileError $e) {
$e->rewrite($content);
throw $e;
}
@@ -1325,13 +1479,12 @@ class STECore
$this->cur_tpl_dir = $tpldir_b4;
- if($quiet)
- {
+ if($quiet) {
$this->blocks = $blocks_back;
$this->blockorder = $blockorder_back;
- }
- else
+ } else {
return $output;
+ }
}
/*
@@ -1344,145 +1497,149 @@ class STECore
* Returns:
* true/false.
*/
- public function evalbool($txt)
- {
+ public function evalbool($txt) {
return trim($txt . "") != "";
}
}
-class STEStandardLibrary
-{
- static public function _register_lib($ste)
- {
- foreach(get_class_methods(__CLASS__) as $method)
- if($method[0] != "_")
+class STEStandardLibrary {
+ static public function _register_lib($ste) {
+ foreach(get_class_methods(__CLASS__) as $method) {
+ if($method[0] != "_") {
$ste->register_tag($method, array(__CLASS__, $method));
+ }
+ }
}
- static public function escape($ste, $params, $sub)
- {
- if($ste->evalbool($params["lines"]))
+ static public function escape($ste, $params, $sub) {
+ if($ste->evalbool($params["lines"])) {
return nl2br(htmlspecialchars(str_replace("\r\n", "\n", $sub($ste))));
- else
+ } else {
return htmlspecialchars($sub($ste));
+ }
}
- static public function strlen($ste, $params, $sub)
- {
+ static public function strlen($ste, $params, $sub) {
return strlen($sub($ste));
}
- static public function arraylen($ste, $params, $sub)
- {
- if(empty($params["array"]))
+ static public function arraylen($ste, $params, $sub) {
+ if(empty($params["array"])) {
throw new RuntimeError("Missing array parameter in <ste:arraylen>.");
- $a = $ste->get_var_by_name($params["array"], False);
+ }
+ $a = $ste->get_var_by_name($params["array"], false);
return (is_array($a)) ? count($a) : "";
}
- static public function inc($ste, $params, $sub)
- {
- if(empty($params["var"]))
+ static public function inc($ste, $params, $sub) {
+ if(empty($params["var"])) {
throw new RuntimeError("Missing var parameter in <ste:inc>.");
- $ref = &$ste->get_var_reference($params["var"], True);
+ }
+ $ref = &$ste->get_var_reference($params["var"], true);
$ref++;
}
- static public function dec($ste, $params, $sub)
- {
- if(empty($params["var"]))
+ static public function dec($ste, $params, $sub) {
+ if(empty($params["var"])) {
throw new RuntimeError("Missing var parameter in <ste:dec>.");
- $ref = &$ste->get_var_reference($params["var"], True);
+ }
+ $ref = &$ste->get_var_reference($params["var"], true);
$ref--;
}
- static public function date($ste, $params, $sub)
- {
+ static public function date($ste, $params, $sub) {
return @strftime($sub($ste), empty($params["timestamp"]) ? @time() : (int) $params["timestamp"]);
}
- static public function in_array($ste, $params, $sub)
- {
- if(empty($params["array"]))
+ static public function in_array($ste, $params, $sub) {
+ if(empty($params["array"])) {
throw new RuntimeError("Missing array parameter in <ste:in_array>.");
- $ar = &$ste->get_var_reference($params["array"], False);
- if(!is_array($ar))
+ }
+ $ar = &$ste->get_var_reference($params["array"], false);
+ if(!is_array($ar)) {
return "";
+ }
return in_array($sub($ste), $ar) ? "y" : "";
}
- static public function join($ste, $params, $sub)
- {
- if(empty($params["array"]))
+ static public function join($ste, $params, $sub) {
+ if(empty($params["array"])) {
throw new RuntimeError("Missing array parameter in <ste:join>.");
+ }
return implode($sub($ste), $ste->get_var_by_name($params["array"]));
}
- static public function split($ste, $params, $sub)
- {
- if(empty($params["array"]))
+ static public function split($ste, $params, $sub) {
+ if(empty($params["array"])) {
throw new RuntimeError("Missing array parameter in <ste:split>.");
- if(empty($params["delim"]))
+ }
+ if(empty($params["delim"])) {
throw new RuntimeError("Missing delim parameter in <ste:split>.");
+ }
$ste->set_var_by_name($params["array"], explode($params["delim"], $sub($ste)));
}
- static public function array_add($ste, $params, $sub)
- {
- if(empty($params["array"]))
+ static public function array_add($ste, $params, $sub) {
+ if(empty($params["array"])) {
throw new RuntimeError("Missing array parameter in <ste:array_add>.");
+ }
- $ar = &$ste->get_var_reference($params["array"], True);
- if(empty($params["key"]))
+ $ar = &$ste->get_var_reference($params["array"], true);
+ if(empty($params["key"])) {
$ar[] = $sub($ste);
- else
+ } else {
$ar[$params["key"]] = $sub($ste);
+ }
}
static public function array_filter($ste, $params, $sub)
{
- if(empty($params["array"]))
+ if(empty($params["array"])) {
throw new RuntimeError("Missing array parameter in <ste:array_filter>.");
+ }
$ar = $ste->get_var_by_name($params["array"]);
- if(!is_array($ar))
+ if(!is_array($ar)) {
throw new RuntimeError("Variable at 'array' is not an array.");
+ }
$keys = array_keys($ar);
- if(!empty($params["keep_by_keys"]))
- {
- $keep_by_keys = &$ste->get_var_reference($params["keep_by_keys"], False);
- if(!is_array($keep_by_keys))
+ if(!empty($params["keep_by_keys"])) {
+ $keep_by_keys = &$ste->get_var_reference($params["keep_by_keys"], false);
+ if(!is_array($keep_by_keys)) {
throw new RuntimeError("Variable at 'keep_by_keys' is not an array.");
+ }
$delkeys = array_filter($keys, function($k) use ($keep_by_keys) { return !in_array($k, $keep_by_keys); });
- foreach($delkeys as $dk)
+ foreach($delkeys as $dk) {
unset($ar[$dk]);
+ }
$keys = array_keys($ar);
}
- if(!empty($params["keep_by_values"]))
- {
- $keep_by_values = &$ste->get_var_reference($params["keep_by_values"], False);
- if(!is_array($keep_by_values))
+ if(!empty($params["keep_by_values"])) {
+ $keep_by_values = &$ste->get_var_reference($params["keep_by_values"], false);
+ if(!is_array($keep_by_values)) {
throw new RuntimeError("Variable at 'keep_by_values' is not an array.");
+ }
$ar = array_filter($ar, function($v) use ($keep_by_values) { return in_array($v, $keep_by_values); });
$keys = array_keys($ar);
}
- if(!empty($params["delete_by_keys"]))
- {
- $delete_by_keys = &$ste->get_var_reference($params["delete_by_keys"], False);
- if(!is_array($delete_by_keys))
+ if(!empty($params["delete_by_keys"])) {
+ $delete_by_keys = &$ste->get_var_reference($params["delete_by_keys"], false);
+ if(!is_array($delete_by_keys)) {
throw new RuntimeError("Variable at 'delete_by_keys' is not an array.");
+ }
$delkeys = array_filter($keys, function($k) use ($delete_by_keys) { return in_array($k, $delete_by_keys); });
- foreach($delkeys as $dk)
+ foreach($delkeys as $dk) {
unset($ar[$dk]);
+ }
$keys = array_keys($ar);
}
- if(!empty($params["delete_by_values"]))
- {
- $delete_by_values = &$ste->get_var_reference($params["delete_by_values"], False);
- if(!is_array($delete_by_values))
+ if(!empty($params["delete_by_values"])) {
+ $delete_by_values = &$ste->get_var_reference($params["delete_by_values"], false);
+ if(!is_array($delete_by_values)) {
throw new RuntimeError("Variable at 'delete_by_values' is not an array.");
+ }
$ar = array_filter($ar, function($v) use ($delete_by_values) { return !in_array($v, $delete_by_values); });
$keys = array_keys($ar);
}