diff options
| -rw-r--r-- | transform.php | 205 |
1 files changed, 197 insertions, 8 deletions
diff --git a/transform.php b/transform.php index 788b5fd..21f0068 100644 --- a/transform.php +++ b/transform.php @@ -148,13 +148,16 @@ function mk_ast($code) $tags_open = 1; $off = 0; $last_tag_start = 0; - while(preg_match("/\\<((?:\\s*)|(?:\\s*\\/\\s*))ste:([a-zA-Z0-9_]*)(?:\\s+(?:[a-zA-Z0-9_]+)=(?:(?:\"(?:.*?)(?<!\\\\)\")|(?:'(?:.*?)(?<!\\\\)')))*\\s*(?<!\\/)\\>/s", $code, $matches, PREG_OFFSET_CAPTURE, $off) > 0) /* RegEx from hell! Matches all non-selfclosing <ste:> Tags. Opening and closing ones. */ + 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. */ { - $closingtag = trim($matches[1][0]); - if($closingtag[0] == "/") - $tags_open--; - else - $tags_open++; + if(trim($matches[3][0]) != "/") + { + $closingtag = trim($matches[1][0]); + if($closingtag[0] == "/") + $tags_open--; + else + $tags_open++; + } $last_tag_start = $matches[0][1]; $off = $last_tag_start + strlen($matches[0][0]); if($tags_open == 0) @@ -162,9 +165,15 @@ function mk_ast($code) } if(($tags_open != 0) or ($tag->name != $matches[2][0])) - throw new Exception("Missing closing \"ste:" + $tag->name + "\"-Tag. Stop."); + throw new Exception("Missing closing \"ste:" . $tag->name . "\"-Tag. Stop."); - $tag->sub = mk_ast(substr($code, 0, $last_tag_start)); + if($tag->name == "rawtext") + { + $tag = new TextNode(); + $tag->text = substr($code, 0, $last_tag_start); + } + else + $tag->sub = mk_ast(substr($code, 0, $last_tag_start)); $code = substr($code, $off); } @@ -191,4 +200,184 @@ function parse($code) return mk_ast($code); } +define("MODE_SOURCE", 0); +define("MODE_AST", 1); +define("MODE_TRANSCOMPILED", 2); + +/*interface StorageAccess +{ + abstract public function get_load_options(); + abstract public function get_save_options(); + + abstract public function load($tpl); + abstract public function save($tpl, $data, $mode); +} + +class FilesystemStorageAccess implements StorageAccess +{ + protected $sourcedir; + protected $astdir; + protected $transcompileddir; + + protected $load_options; + protected $save_options; + + public function __construct($src, $ast, $transc) + { + $this->sourcedir = $src; + $this->astdir = $ast; + $this->transcompileddir = $transc; + + if(!empty($this->sourcedir)) + { + if(is_readable($this->sourcedir)) + $this->load_options[] = MODE_SOURCE; + if(is_writeableable($this->sourcedir)) + $this->save_options[] = MODE_SOURCE; + } + + if(!empty($this->astdir)) + { + if(is_readable($this->astdir)) + $this->load_options[] = MODE_AST; + if(is_writeableable($this->astdir)) + $this->save_options[] = MODE_AST; + } + + if(!empty($this->transcompileddir)) + { + if(is_readable($this->transcompileddir)) + $this->load_options[] = MODE_TRANSCOMPILED; + if(is_writeableable($this->transcompileddir)) + $this->save_options[] = MODE_TRANSCOMPILED; + } + + if(empty($this->save_options) and empty($this->load_options)) + throw new Exception("No dir read-/writeable!"); + } + + public function get_load_options() { return $this->load_options; } + public function get_save_options() { return $this->save_options; } + + public function load($tpl) + { + if(@stat($this->sourcedir) + } +}*/ + +function indent_code($code) +{ + return implode( + "\n", + 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) +{ + $operators = array( + "+" => array() + ); +} + +$ste_builtins = array( + "if" => function($ast) + { + $output = ""; + $condition = array(); + $then = array(); + $else = array(); + + foreach($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 = $node->sub; + else + $condition[] = $node; + } + + if(empty($then)) + throw new Exception("Transcompile error: Missing <ste:else> in <ste:if>. Stop."); + + $output .= transcompile($condition); + $output .= "\$outputstack_i--;\nif(\$ste->bool(array_pop(\$outputstack)))\n{\n"; + $output .= indent_code(transcompile($then)); + $output .= "}\n"; + if(!empty($else)) + { + $output .= "else\n{\n"; + $output .= indent_code(transcompile($else)); + $output .= "}\n"; + } + return $output; + }, + "cmp" => function($ast) + { + + }, + "not" => function($ast) + { + + }, + "even" => function($ast) + { + + }, + "for" => function($ast) + { + if(empty($ast->params["start"])) + throw new Exception("Transcompile error: Missing 'start' parameter in <ste:for>. Stop."); + if(empty($ast->params["end"])) + throw new Exception("Transcompile error: Missing 'end' parameter in <ste:for>. Stop."); + + }, + "foreach" => function($ast) + { + + }, + "infloop" => function($ast) + { + + }, + "break" => function($ast) + { + return "break;\n"; + } + "continue" => function($ast) + { + return "continue\n"; + } + "block" => function($ast) + { + + }, + "load" => function($ast) + { + + }, + "mktag" => function($ast) + { + + }, + "set" => function($ast) + { + + }, + "calc" => function($ast) + { + + } +); + +function transcompile($ast) +{ + +} + ?> |