861 lines
22 KiB
PHP
861 lines
22 KiB
PHP
<?php
|
|
|
|
class mtgMetaInfoParser
|
|
{
|
|
private $config = array();
|
|
private $current_meta;
|
|
private $parsed_files = array();
|
|
private $file_stack = array();
|
|
private $file = "";
|
|
private $source = "";
|
|
private $cursor = 0;
|
|
private $line = 0;
|
|
private $token = "";
|
|
private $attribute = "";
|
|
private $idltypes = array();
|
|
private $token_strs = array();
|
|
|
|
const T_EOF = 1001;
|
|
const T_StringConstant = 1002;
|
|
const T_IntegerConstant = 1003;
|
|
const T_FloatConstant = 1004;
|
|
const T_Enum = 1005;
|
|
const T_RPC = 1006;
|
|
const T_End = 1007;
|
|
const T_Identifier = 1008;
|
|
const T_Struct = 1009;
|
|
const T_Prop = 1010;
|
|
const T_Extends = 1011;
|
|
const T_Func = 1012;
|
|
const T_RawStringConstant = 1013;
|
|
const T_Interface = 1014;
|
|
const T_string = 1020;
|
|
const T_uint32 = 1021;
|
|
const T_int32 = 1022;
|
|
const T_uint16 = 1023;
|
|
const T_int16 = 1024;
|
|
const T_uint8 = 1025;
|
|
const T_int8 = 1026;
|
|
const T_float = 1027;
|
|
const T_uint64 = 1028;
|
|
const T_int64 = 1029;
|
|
const T_bool = 1030;
|
|
const T_blob = 1031;
|
|
|
|
function __construct($config = array())
|
|
{
|
|
$this->config = $config;
|
|
if(!isset($this->config['include_path']))
|
|
$this->config['include_path'] = array('.');
|
|
|
|
$this->idltypes = array(
|
|
"string" => self::T_string,
|
|
"uint32" => self::T_uint32,
|
|
"int32" => self::T_int32,
|
|
"uint16" => self::T_uint16,
|
|
"int16" => self::T_int16,
|
|
"uint8" => self::T_uint8,
|
|
"int8" => self::T_int8,
|
|
"float" => self::T_float,
|
|
"double" => self::T_float,
|
|
"uint64" => self::T_uint64,
|
|
"int64" => self::T_int64,
|
|
"bool" => self::T_bool,
|
|
"blob" => self::T_blob,
|
|
);
|
|
$this->token_strs = array_flip($this->idltypes);
|
|
$this->token_strs[self::T_EOF] = '<EOF>';
|
|
$this->token_strs[self::T_StringConstant] = '<StringConstant>';
|
|
$this->token_strs[self::T_RawStringConstant] = '<RawStringConstant>';
|
|
$this->token_strs[self::T_IntegerConstant] = '<IntegerConstant>';
|
|
$this->token_strs[self::T_FloatConstant] = '<FloatConstant>';
|
|
$this->token_strs[self::T_Enum] = '<enum>';
|
|
$this->token_strs[self::T_RPC] = '<RPC>';
|
|
$this->token_strs[self::T_End] = '<end>';
|
|
$this->token_strs[self::T_Identifier] = '<Identifier>';
|
|
$this->token_strs[self::T_Struct] = '<struct>';
|
|
$this->token_strs[self::T_Interface] = '<interface>';
|
|
$this->token_strs[self::T_Prop] = '<@prop>';
|
|
$this->token_strs[self::T_Extends] = '<extends>';
|
|
$this->token_strs[self::T_Func] = '<func>';
|
|
}
|
|
|
|
function parse(mtgMetaInfo $meta, $raw_file)
|
|
{
|
|
$this->current_meta = $meta;
|
|
|
|
$file = realpath($raw_file);
|
|
if($file === false)
|
|
throw new Exception("No such file '$raw_file'");
|
|
|
|
$this->_parse($file);
|
|
|
|
mtgTypeRef::checkAllResolved();
|
|
}
|
|
|
|
private function _parse($file)
|
|
{
|
|
if(isset($this->parsed_files[$file]))
|
|
return;
|
|
$this->parsed_files[$file] = true;
|
|
$this->file_stack[] = $file;
|
|
$source = file_get_contents($file);
|
|
$is_php = false;
|
|
|
|
try
|
|
{
|
|
if($source === false)
|
|
throw new Exception("Could not read file '$file'");
|
|
|
|
//PHP include
|
|
if(strpos($source, '<?php') === 0)
|
|
{
|
|
include_once($file);
|
|
$is_php = true;
|
|
}
|
|
else
|
|
{
|
|
self::resolveIncludes($source, $this->config['include_path'], array($this, '_parse'));
|
|
}
|
|
}
|
|
catch(Exception $e)
|
|
{
|
|
throw new Exception(end($this->file_stack) . " : " . $e->getMessage());
|
|
}
|
|
|
|
array_pop($this->file_stack);
|
|
|
|
if($is_php)
|
|
return;
|
|
|
|
$this->file = $file;
|
|
$this->source = $source;
|
|
$this->cursor = 0;
|
|
$this->line = 1;
|
|
|
|
try
|
|
{
|
|
$this->_next();
|
|
while($this->token != self::T_EOF)
|
|
{
|
|
//echo "TOKEN : " . $this->token . " " . $this->attribute . " " . $this->line . "\n";
|
|
|
|
if($this->token == self::T_Enum)
|
|
$this->_parseEnum();
|
|
else if($this->token == self::T_Struct)
|
|
$this->_parseStruct();
|
|
else if($this->token == self::T_Interface)
|
|
$this->_parseInterface();
|
|
else if($this->token == self::T_Func)
|
|
$this->_parseFreeFunc();
|
|
else if($this->token == self::T_RPC)
|
|
$this->_parseRPC();
|
|
else
|
|
$this->_error("unexpected token ('" . $this->_toStr($this->token) . "' " . $this->attribute . ")");
|
|
}
|
|
}
|
|
catch(Exception $e)
|
|
{
|
|
throw new Exception("$file@{$this->line} : " . $e->getMessage() . " " . $e->getTraceAsString());
|
|
}
|
|
}
|
|
|
|
private function _parseType($can_be_multi = false)
|
|
{
|
|
$types = array();
|
|
|
|
while(true)
|
|
{
|
|
$type = null;
|
|
|
|
if($this->token == self::T_Func)
|
|
{
|
|
$func_type = $this->_parseFuncType();
|
|
$type = new mtgTypeRef($func_type);
|
|
}
|
|
else if($this->token == self::T_Identifier)
|
|
{
|
|
$type_name = $this->_parseDotName();
|
|
$type = new mtgTypeRef($type_name, $this->current_meta, $this->file, $this->line);
|
|
}
|
|
else
|
|
{
|
|
$type_name = $this->attribute;
|
|
$type = new mtgTypeRef(new mtgBuiltinType($type_name));
|
|
$this->_next();
|
|
}
|
|
|
|
if($this->token == ord('['))
|
|
{
|
|
$this->_next();
|
|
$this->_checkThenNext(']');
|
|
$type = new mtgTypeRef(new mtgArrType($type));
|
|
}
|
|
$types[] = $type;
|
|
|
|
if(!$can_be_multi)
|
|
break;
|
|
|
|
if($this->token != ord(','))
|
|
break;
|
|
$this->_next();
|
|
}
|
|
|
|
if(sizeof($types) > 1)
|
|
return new mtgTypeRef(new mtgMultiType($types));
|
|
else
|
|
return $types[0];
|
|
}
|
|
|
|
private function _parseFuncType()
|
|
{
|
|
$ftype = new mtgMetaFunc('');
|
|
|
|
$this->_next();
|
|
|
|
$this->_checkThenNext('(');
|
|
|
|
$c = 0;
|
|
while(true)
|
|
{
|
|
if($this->token == ord(')'))
|
|
{
|
|
$this->_next();
|
|
break;
|
|
}
|
|
else if($c > 0)
|
|
{
|
|
$this->_checkThenNext(',');
|
|
}
|
|
|
|
$arg_type = $this->_parseType();
|
|
$c++;
|
|
$arg = new mtgMetaField("_$c", $arg_type);
|
|
$ftype->addArg($arg);
|
|
}
|
|
|
|
if($this->token == ord(':'))
|
|
{
|
|
$this->_next();
|
|
$ret_type = $this->_parseType(true/*can be multi-type*/);
|
|
$ftype->setReturnType($ret_type);
|
|
}
|
|
return $ftype;
|
|
}
|
|
|
|
static function resolveIncludes(&$text, array $include_paths, $callback)
|
|
{
|
|
$result = array();
|
|
$lines = explode("\n", $text);
|
|
foreach($lines as $line)
|
|
{
|
|
if(preg_match('~^#include\s+(\S+)~', $line, $m))
|
|
{
|
|
self::processInclude($m[1], $include_paths, $callback);
|
|
$result[] = "";
|
|
}
|
|
else
|
|
$result[] = $line;
|
|
}
|
|
$text = implode("\n", $result);
|
|
}
|
|
|
|
static function processInclude($include, array $include_paths, $callback)
|
|
{
|
|
$file = false;
|
|
foreach($include_paths as $include_path)
|
|
{
|
|
$file = realpath($include_path . "/" . $include);
|
|
if($file !== false)
|
|
break;
|
|
}
|
|
|
|
if($file === false)
|
|
throw new Exception("#include {$include} can't be resolved(include path is '". implode(':', $include_paths) . "')");
|
|
|
|
call_user_func_array($callback, array($file));
|
|
}
|
|
|
|
private function _parseEnumOrValues()
|
|
{
|
|
$values = array();
|
|
while(true)
|
|
{
|
|
if($this->token == self::T_Identifier)
|
|
{
|
|
$values[] = $this->attribute;
|
|
$this->_next();
|
|
if($this->token != ord('|'))
|
|
break;
|
|
else
|
|
$this->_next();
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
|
|
return $values;
|
|
}
|
|
|
|
private function _parseEnum()
|
|
{
|
|
$this->_next();
|
|
|
|
$name = $this->_parseDotName();
|
|
|
|
$enum = new mtgMetaEnum($name);
|
|
$this->current_meta->addUnit(new mtgMetaInfoUnit($this->file, $enum));
|
|
|
|
if($this->token == self::T_Prop)
|
|
{
|
|
$enum->setTokens($this->_parsePropTokens());
|
|
}
|
|
|
|
$or_values = array();
|
|
while(true)
|
|
{
|
|
if($this->_nextIf(self::T_End))
|
|
break;
|
|
$key = $this->_checkThenNext(self::T_Identifier);
|
|
$this->_checkThenNext('=');
|
|
if($this->token == self::T_Identifier)
|
|
{
|
|
$or_values[$key] = $this->_parseEnumOrValues();
|
|
}
|
|
else
|
|
{
|
|
$value = $this->_checkThenNext(self::T_IntegerConstant);
|
|
$enum->addValue($key, $value);
|
|
}
|
|
}
|
|
$enum->addOrValues($or_values);
|
|
}
|
|
|
|
private function _parseFields($next_doer)
|
|
{
|
|
$flds = array();
|
|
|
|
while(true)
|
|
{
|
|
if($next_doer())
|
|
break;
|
|
|
|
if($this->token == self::T_Identifier)
|
|
{
|
|
$name = $this->attribute;
|
|
$this->_next();
|
|
$this->_checkThenNext(':');
|
|
|
|
if($this->token == self::T_Identifier ||
|
|
$this->token == self::T_Func ||
|
|
($this->token >= self::T_string && $this->token <= self::T_blob))
|
|
{
|
|
$type = $this->_parseType();
|
|
|
|
$fld = new mtgMetaField($name, $type);
|
|
|
|
if($this->token == self::T_Prop)
|
|
$fld->setTokens($this->_parsePropTokens());
|
|
|
|
$flds[] = $fld;
|
|
}
|
|
else
|
|
$this->_error("type expected");
|
|
}
|
|
else
|
|
$this->_error("unexpected fields token");
|
|
}
|
|
|
|
return $flds;
|
|
}
|
|
|
|
private function _parseFuncs()
|
|
{
|
|
$end_token = self::T_End;
|
|
|
|
$funcs = array();
|
|
|
|
while(true)
|
|
{
|
|
$fn = $this->_parseFunc();
|
|
$funcs[] = $fn;
|
|
|
|
if($this->token == $end_token)
|
|
{
|
|
$this->_next();
|
|
break;
|
|
}
|
|
|
|
$this->_next();
|
|
}
|
|
|
|
return $funcs;
|
|
}
|
|
|
|
private function _parseDotName()
|
|
{
|
|
$dot_name = '';
|
|
|
|
while(true)
|
|
{
|
|
if($this->token != self::T_Identifier)
|
|
$this->_error("unexpected name token");
|
|
|
|
$dot_name .= $this->attribute;
|
|
$this->_next();
|
|
if($this->token != ord('.'))
|
|
break;
|
|
$dot_name .= '.';
|
|
$this->_next();
|
|
}
|
|
|
|
return $dot_name;
|
|
}
|
|
|
|
private function _parseFunc()
|
|
{
|
|
$name = $this->_parseDotName();
|
|
$fn = new mtgMetaFunc($name);
|
|
|
|
$this->_checkThenNext('(');
|
|
if($this->token == self::T_Prop)
|
|
$fn->setTokens($this->_parsePropTokens());
|
|
$args = $this->_parseFields(function()
|
|
{ return $this->_nextIf(')'); }
|
|
);
|
|
$fn->setArgs($args);
|
|
|
|
$ret_type = null;
|
|
if($this->token == ord(':'))
|
|
{
|
|
$this->_next();
|
|
if($this->token == self::T_Identifier ||
|
|
$this->token == self::T_Func ||
|
|
($this->token >= self::T_string && $this->token <= self::T_bool))
|
|
{
|
|
$ret_type = $this->_parseType(true/*can be multi-type*/);
|
|
$fn->setReturnType($ret_type);
|
|
}
|
|
else
|
|
$this->_error("unexpected func type token");
|
|
}
|
|
|
|
return $fn;
|
|
}
|
|
|
|
private function _parseFreeFunc()
|
|
{
|
|
$this->_next();
|
|
$fn = $this->_parseFunc();
|
|
$this->current_meta->addUnit(new mtgMetaInfoUnit($this->file, $fn));
|
|
}
|
|
|
|
private function _parseStruct()
|
|
{
|
|
$this->_next();
|
|
$name = $this->_parseDotName();
|
|
|
|
$parent = null;
|
|
if($this->token == self::T_Extends)
|
|
{
|
|
$this->_next();
|
|
$parent_name = $this->_checkThenNext(self::T_Identifier);
|
|
$parent = new mtgTypeRef($parent_name, $this->current_meta, $this->file, $this->line);
|
|
}
|
|
|
|
$s = new mtgMetaStruct($name, array(), $parent);
|
|
$this->current_meta->addUnit(new mtgMetaInfoUnit($this->file, $s));
|
|
|
|
if($this->token == self::T_Prop)
|
|
$s->setTokens($this->_parsePropTokens());
|
|
|
|
$seen_funcs = false;
|
|
$flds = $this->_parseFields(
|
|
function() use(&$seen_funcs)
|
|
{
|
|
if($this->_nextIf(self::T_End))
|
|
return true;
|
|
if($this->_nextIf(self::T_Func))
|
|
{
|
|
$seen_funcs = true;
|
|
return true;
|
|
}
|
|
}
|
|
);
|
|
foreach($flds as $fld)
|
|
$s->addField($fld);
|
|
|
|
if($seen_funcs)
|
|
{
|
|
$funcs = $this->_parseFuncs();
|
|
foreach($funcs as $fn)
|
|
$s->addFunc($fn);
|
|
}
|
|
}
|
|
|
|
private function _parseInterface()
|
|
{
|
|
$this->_next();
|
|
$name = $this->_parseDotName();
|
|
|
|
$s = new mtgMetaInterface($name);
|
|
$this->current_meta->addUnit(new mtgMetaInfoUnit($this->file, $s));
|
|
|
|
if($this->token == self::T_Prop)
|
|
$s->setTokens($this->_parsePropTokens());
|
|
|
|
$this->_next();
|
|
$funcs = $this->_parseFuncs();
|
|
foreach($funcs as $fn)
|
|
$s->addFunc($fn);
|
|
}
|
|
|
|
private function _parseRPC()
|
|
{
|
|
$this->_next();
|
|
$code = $this->_checkThenNext(self::T_IntegerConstant);
|
|
$name = $this->_checkThenNext(self::T_Identifier);
|
|
$this->_checkThenNext('(');
|
|
|
|
$tokens = array();
|
|
if($this->token == self::T_Prop)
|
|
$tokens = $this->_parsePropTokens();
|
|
|
|
$req_fields = $this->_parseFields(function()
|
|
{ return $this->_nextIf(')'); }
|
|
);
|
|
$rsp_fields = $this->_parseFields(function()
|
|
{ return $this->_nextIf(self::T_End); }
|
|
);
|
|
|
|
$req = new mtgMetaPacket($code, "RPC_REQ_$name");
|
|
$req->setFields($req_fields);
|
|
$rsp = new mtgMetaPacket($code, "RPC_RSP_$name");
|
|
$rsp->setFields($rsp_fields);
|
|
|
|
$rpc = new mtgMetaRPC("RPC_$name", $code, $req, $rsp, $tokens);
|
|
$this->current_meta->addUnit(new mtgMetaInfoUnit($this->file, $rpc));
|
|
}
|
|
|
|
private function _parsePropTokens()
|
|
{
|
|
$new_line = ord("\n");
|
|
|
|
$prop_tokens = array();
|
|
|
|
while(true)
|
|
{
|
|
if($this->token != self::T_Prop)
|
|
break;
|
|
|
|
$name = ltrim($this->attribute, '@');
|
|
$this->_next();
|
|
|
|
$value = null;
|
|
if($this->token == ord(':'))
|
|
{
|
|
while(true)
|
|
{
|
|
$this->_next(false/*don't skip new line*/);
|
|
if($this->token == $new_line ||
|
|
$this->token == self::T_Prop)
|
|
{
|
|
//let's skip it
|
|
if($this->token == $new_line)
|
|
$this->_next();
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
$tmp = $this->attribute;
|
|
if($this->token == self::T_StringConstant)
|
|
$tmp = "\"$tmp\"";
|
|
if($value === null)
|
|
$value = '';
|
|
$value .= $tmp;
|
|
}
|
|
}
|
|
}
|
|
if($value && substr($value, 0, 1) == '{')
|
|
{
|
|
$json = json_decode($value);
|
|
if($json === null)
|
|
{
|
|
--$this->line; //hack for more precise reporting
|
|
$this->_error("bad json");
|
|
}
|
|
}
|
|
$this->_validatePropToken($name, $value);
|
|
|
|
$prop_tokens[$name] = $value;
|
|
}
|
|
return $prop_tokens;
|
|
}
|
|
|
|
private function _validatePropToken($name, $value)
|
|
{
|
|
if(!isset($this->config['valid_tokens']) || !$this->config['valid_tokens'])
|
|
return;
|
|
|
|
if(!in_array($name, $this->config['valid_tokens']))
|
|
throw new Exception("Unknown token '$name'");
|
|
}
|
|
|
|
private function _symbol()
|
|
{
|
|
return substr($this->source, $this->cursor, 1);
|
|
}
|
|
|
|
private function _next($skip_newlines = true)
|
|
{
|
|
$this->__next($skip_newlines);
|
|
//for debug
|
|
//var_dump("NEXT " . $this->token . " " . $this->attribute);
|
|
//debug_print_backtrace(0, 1);
|
|
}
|
|
|
|
private function __next($skip_newlines = true)
|
|
{
|
|
while(true)
|
|
{
|
|
$c = $this->_symbol();
|
|
//NOTE: dealing with PHP's types juggling
|
|
if($c === false || $c === '')
|
|
$c = -1;
|
|
|
|
$this->token = ord($c);
|
|
++$this->cursor;
|
|
$this->attribute = $c;
|
|
|
|
switch($c)
|
|
{
|
|
case -1: $this->cursor--; $this->token = self::T_EOF; return;
|
|
case ' ': case "\r": case "\t": break;
|
|
case "\n": $this->line++; if($skip_newlines) break; else return;
|
|
case '{': case '}': case '(': case ')': case '[': case ']': case '|': return;
|
|
case ',': case ':': case ';': case '=': return;
|
|
case '.':
|
|
if(!ctype_digit($this->_symbol())) return;
|
|
$this->_error("floating point constant can't start with .");
|
|
break;
|
|
case '"':
|
|
$this->attribute = "";
|
|
while($this->_symbol() != '"')
|
|
{
|
|
if(ord($this->_symbol()) < ord(' ') && ord($this->_symbol()) >= 0)
|
|
$this->_error("illegal character in string constant");
|
|
if($this->_symbol() == '\\')
|
|
{
|
|
$this->cursor++;
|
|
switch($this->_symbol())
|
|
{
|
|
case 'n': $this->attribute .= "\n"; $this->cursor++; break;
|
|
case 't': $this->attribute .= "\t"; $this->cursor++; break;
|
|
case 'r': $this->attribute .= "\r"; $this->cursor++; break;
|
|
case '"': $this->attribute .= '"'; $this->cursor++; break;
|
|
case '\\': $this->attribute .= '\\'; $this->cursor++; break;
|
|
default: $this->_error("unknown escape code in string constant"); break;
|
|
}
|
|
}
|
|
else // printable chars + UTF-8 bytes
|
|
{
|
|
$this->attribute .= $this->_symbol();
|
|
$this->cursor++;
|
|
}
|
|
}
|
|
$this->token = self::T_StringConstant;
|
|
$this->cursor++;
|
|
return;
|
|
|
|
case '`':
|
|
$this->attribute = "";
|
|
while($this->_symbol() != '`')
|
|
{
|
|
$this->attribute .= $this->_symbol();
|
|
$this->cursor++;
|
|
}
|
|
$this->token = self::T_RawStringConstant;
|
|
$this->cursor++;
|
|
return;
|
|
|
|
case '/':
|
|
if($this->_symbol() == '/')
|
|
{
|
|
$this->cursor++;
|
|
while($this->_symbol() !== false && $this->_symbol() != "\n") $this->cursor++;
|
|
break;
|
|
}
|
|
|
|
case '#':
|
|
while($this->_symbol() !== false && $this->_symbol() != "\n") $this->cursor++;
|
|
break;
|
|
|
|
case '@':
|
|
$start = $this->cursor - 1;
|
|
while(ctype_alnum($this->_symbol()) || $this->_symbol() == '_')
|
|
$this->cursor++;
|
|
$this->token = self::T_Prop;
|
|
$this->attribute = substr($this->source, $start, $this->cursor - $start);
|
|
return;
|
|
|
|
//fall thru
|
|
default:
|
|
|
|
if(ctype_alpha($c))
|
|
{
|
|
//collect all chars of an identifier
|
|
$start = $this->cursor - 1;
|
|
while(ctype_alnum($this->_symbol()) || $this->_symbol() == '_')
|
|
$this->cursor++;
|
|
$this->attribute = substr($this->source, $start, $this->cursor - $start);
|
|
|
|
if(isset($this->idltypes[$this->attribute]))
|
|
{
|
|
$this->token = $this->idltypes[$this->attribute];
|
|
return;
|
|
}
|
|
|
|
if($this->attribute == "true" || $this->attribute == "false")
|
|
{
|
|
$this->token = self::T_IntegerConstant;
|
|
return;
|
|
}
|
|
|
|
//check for declaration keywords:
|
|
if($this->attribute == "struct") { $this->token = self::T_Struct; return; }
|
|
if($this->attribute == "interface") { $this->token = self::T_Interface; return; }
|
|
if($this->attribute == "enum") { $this->token = self::T_Enum; return; }
|
|
if($this->attribute == "RPC") { $this->token = self::T_RPC; return; }
|
|
if($this->attribute == "end") { $this->token = self::T_End; return; }
|
|
if($this->attribute == "extends") { $this->token = self::T_Extends; return; }
|
|
if($this->attribute == "func") { $this->token = self::T_Func; return; }
|
|
|
|
//if not it's a user defined identifier
|
|
$this->token = self::T_Identifier;
|
|
return;
|
|
}
|
|
else if(ctype_digit($c) || $c == '-')
|
|
{
|
|
$start = $this->cursor - 1;
|
|
while(ctype_digit($this->_symbol())) $this->cursor++;
|
|
if($this->_symbol() == '.')
|
|
{
|
|
$this->cursor++;
|
|
while(ctype_digit($this->_symbol())) $this->cursor++;
|
|
// see if this float has a scientific notation suffix. Both JSON
|
|
// and C++ (through strtod() we use) have the same format:
|
|
if($this->_symbol() == 'e' || $this->_symbol() == 'E')
|
|
{
|
|
$this->cursor++;
|
|
if($this->_symbol() == '+' || $this->_symbol() == '-') $this->cursor++;
|
|
while(ctype_digit($this->_symbol())) $this->cursor++;
|
|
}
|
|
$this->token = self::T_FloatConstant;
|
|
}
|
|
else
|
|
$this->token = self::T_IntegerConstant;
|
|
$this->attribute = substr($this->source, $start, $this->cursor - $start);
|
|
return;
|
|
}
|
|
|
|
$this->_error("illegal character '$c'");
|
|
}
|
|
}
|
|
}
|
|
|
|
private function _nextIf($t)
|
|
{
|
|
if(is_string($t))
|
|
$t = ord($t);
|
|
$yes = $t === $this->token;
|
|
if($yes)
|
|
$this->_next();
|
|
return $yes;
|
|
}
|
|
|
|
private function _checkThenNext($t)
|
|
{
|
|
if(is_string($t))
|
|
$t = ord($t);
|
|
if($t !== $this->token)
|
|
{
|
|
$this->_error("Expecting '" . $this->_toStr($t) . "' instead got '" . $this->_toStr($this->token) . "'");
|
|
}
|
|
|
|
$attr = $this->attribute;
|
|
$this->_next();
|
|
return $attr;
|
|
}
|
|
|
|
private function _toStr($t)
|
|
{
|
|
if($t < 1000)
|
|
return chr($t);
|
|
return $this->token_strs[$t];
|
|
}
|
|
|
|
private function _error($msg)
|
|
{
|
|
throw new Exception($msg . "(token: {$this->token}, attr: {$this->attribute}})");
|
|
}
|
|
}
|
|
|
|
function mtg_parse_meta(array $meta_srcs, $valid_tokens = null)
|
|
{
|
|
$meta_dirs = array();
|
|
foreach($meta_srcs as $src)
|
|
{
|
|
if(is_dir($src))
|
|
$meta_dirs[] = $src;
|
|
else if(is_file($src))
|
|
$meta_dirs[] = dirname($src);
|
|
}
|
|
|
|
$meta_parser = new mtgMetaInfoParser(
|
|
array(
|
|
'include_path' => $meta_dirs,
|
|
'valid_tokens' => $valid_tokens
|
|
)
|
|
);
|
|
$meta = new mtgMetaInfo();
|
|
foreach($meta_srcs as $src)
|
|
mtg_load_meta($meta, $meta_parser, $src);
|
|
return $meta;
|
|
}
|
|
|
|
function mtg_load_meta(mtgMetaInfo $meta, mtgMetaInfoParser $meta_parser, $dir_or_file)
|
|
{
|
|
$files = array();
|
|
if(is_dir($dir_or_file))
|
|
$files = mtg_find_meta_files($dir_or_file);
|
|
else if(is_file($dir_or_file))
|
|
$files[] = $dir_or_file;
|
|
else
|
|
throw new Exception("Bad meta source '$dir_or_file'");
|
|
|
|
foreach($files as $file)
|
|
$meta_parser->parse($meta, $file);
|
|
}
|
|
|
|
function mtg_find_meta_files($dir)
|
|
{
|
|
$items = scandir($dir);
|
|
if($items === false)
|
|
throw new Exception("Directory '$dir' is invalid");
|
|
|
|
$files = array();
|
|
foreach($items as $item)
|
|
{
|
|
if($item[0] == '.')
|
|
continue;
|
|
|
|
if(strpos($item, ".meta") !== (strlen($item)-5))
|
|
continue;
|
|
|
|
$file = $dir . '/' . $item;
|
|
if(is_file($file) && !is_dir($file))
|
|
$files[] = $file;
|
|
}
|
|
return $files;
|
|
}
|