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parse.php
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<?php
$i = 1;
function addNoArgument($xml, $instruction)
{
global $i;
$newElement=$xml->addChild('instruction');
$newElement->addAttribute('order',$i);
$newElement->addAttribute('opcode',$instruction);
$i = $i+1;
return $xml;
}
function addOneArgument($xml, $instruction, $argument, $type)
{
global $i;
$newElement=$xml->addChild('instruction');
$newElement->addAttribute('order',$i);
$newElement->addAttribute('opcode',$instruction);
$newArgument=$newElement->addChild('arg1',$argument);
$newArgument->addAttribute('type',$type);
$i = $i+1;
return $xml;
}
function addTWOArgument($xml, $instruction, $argument, $type, $argument2, $type2)
{
global $i;
$newElement=$xml->addChild('instruction');
$newElement->addAttribute('order',$i);
$newElement->addAttribute('opcode',$instruction);
$newArgument=$newElement->addChild('arg1',$argument);
$newArgument->addAttribute('type',$type);
$newArgument=$newElement->addChild('arg2',$argument2);
$newArgument->addAttribute('type',$type2);
$i = $i+1;
return $xml;
}
function addThreeArgument($xml, $instruction, $argument, $type, $argument2, $type2, $argument3, $type3)
{
global $i;
$newElement=$xml->addChild('instruction');
$newElement->addAttribute('order',$i);
$newElement->addAttribute('opcode',$instruction);
$newArgument=$newElement->addChild('arg1',$argument);
$newArgument->addAttribute('type',$type);
$newArgument=$newElement->addChild('arg2',$argument2);
$newArgument->addAttribute('type',$type2);
$newArgument=$newElement->addChild('arg3',$argument3);
$newArgument->addAttribute('type',$type3);
$i = $i+1;
return $xml;
}
function isVar($word)
{
return preg_match("/\A(LF|GF|TF)@[a-zA-Z0-9_\-$;&%*!?]*\z/i", $word);
}
function isSymbol($word)
{
return isVar($word) || isInt($word) || isString($word) || isBool($word) || isNil($word);
}
function isInt($word)
{
return preg_match("/\A(int)@(\+|\-|)([0-9]+|(0x[0-9A-Fa-f]+)|(0X[0-9A-Fa-f]+)|(0o[0-7]+)|(0O[0-7]+))\z/i", $word) || isVar($word);
}
function isLabel($word)
{
return preg_match("/\A[a-zA-Z0-9_\-$;&%*!?]+\z/i", $word);
}
function isString($word)
{
return preg_match("/\A(string)@([a-zA-Z0-9_\-$;&%*!?\/]|(\\\\[0-9]{3}))+\z/", $word) || isVar($word);
}
function isBool($word)
{
return preg_match("/\A(bool)@(true|false)\z/", $word) || isVar($word);
}
function isNil($word)
{
return preg_match("/\A(nil)@(nil)\z/", $word) || isVar($word);
}
function isType($word)
{
return preg_match("/\A((int)|(bool)|(string))\z/i", $word) || isVar($word);
}
function getTypeIpp($word)
{
if(isVar($word))
return "var";
elseif(isInt($word))
return "int";
elseif(isString($word))
return "string";
elseif(isBool($word))
return "bool";
elseif(isNil($word))
return "nil";
elseif(isType($word))
return "type";
elseif(isLabel($word))
return "label";
else
{
echo "Neznamy typ hodnoty !";
exit(23);
}
}
function getValue($word)
{
if (isLabel($word))
{
return $word;
}
if (!(isVar($word)))
{
$word = explode('@', trim($word, "\n"));
return $word[1];
}
else
return $word;
}
function addProgHeader($xml, $words)
{
$words[0] = strtoupper($words[0]);
if($words[0] == ".IPPCODE22")
{
$xml->addAttribute('language', 'IPPcode22');
return $xml;
}
else exit(21);
}
function addElement($xml, $words)
{
if($words != NULL)
{
switch (strtoupper($words[0]))
{
case "DEFVAR":
if (count($words) == 2)
{
if (isVar($words[1]))
{
$xml = addOneArgument($xml, "DEFVAR", $words[1], "var");
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "MOVE":
if (count($words) == 3)
{
if(isVar($words[1]) && isSymbol($words[2]))
{
$xml = addTwoArgument($xml, "MOVE", $words[1], "var",getValue($words[2]),getTypeIpp($words[2]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "CREATEFRAME":
if (count($words) == 1)
{
$xml = addNoArgument($xml, $words[0]);
}
else
{
exit(23);
}
break;
case "PUSHFRAME":
if (count($words) == 1)
{
$xml = addNoArgument($xml, $words[0]);
}
else
{
exit(23);
}
break;
case "POPFRAME":
if (count($words) == 1)
{
$xml = addNoArgument($xml, $words[0]);
}
else
{
exit(23);
}
break;
case "CALL":
if (count($words) == 2)
{
if (isLabel($words[1]))
{
$xml = addOneArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "RETURN":
if (count($words) == 1)
{
$xml = addNoArgument($xml, $words[0]);
}
else
{
exit(23);
}
break;
case "PUSHS":
if (count($words) == 2)
{
if (isVar($words[1]))
{
$xml = addOneArgument($xml, "PUSHS", getValue($words[1]), getTypeIpp($words[1]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "POPS":
if (count($words) == 2)
{
if (isVar($words[1]))
{
$xml = addOneArgument($xml, "POPS", $words[1], "var");
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "ADD":
if (count($words) == 4)
{
if (isVar($words[1]) && isInt($words[2]) && isInt($words[3]))
{
$xml = addThreeArgument($xml, "ADD", getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "SUB":
if (count($words) == 4)
{
if (isVar($words[1]) && isInt($words[2]) && isInt($words[3]))
{
$xml = addThreeArgument($xml, "SUB", getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "MUL":
if (count($words) == 4)
{
if (isVar($words[1]) && isInt($words[2]) && isInt($words[3]))
{
$xml = addThreeArgument($xml, "MUL", getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "IDIV":
if (count($words) == 4)
{
if (isVar($words[1]) && isInt($words[2]) && isInt($words[3]))
{
$xml = addThreeArgument($xml, "IDIV", getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "LT":
if (count($words) == 4)
{
if (isVar($words[1]) && isInt($words[2]) || isString($words[2]) || isBool($words[2]) && isInt($words[3]) || isString($words[3]) || isBool($words[3]))
{
$xml = addThreeArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "GT":
if (count($words) == 4)
{
if (isVar($words[1]) && isInt($words[2]) || isString($words[2]) || isBool($words[2]) && isInt($words[3]) || isString($words[3]) || isBool($words[3]))
{
$xml = addThreeArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "EQ":
if (count($words) == 4)
{
if (isVar($words[1]) && isInt($words[2]) || isString($words[2]) || isBool($words[2]) && isInt($words[3]) || isString($words[3]) || isBool($words[3]))
{
$xml = addThreeArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "AND":
if (count($words) == 4)
{
if (isVar($words[1]) && isBool($words[2]) && isBool($words[3]))
{
$xml = addThreeArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "OR":
if (count($words) == 4)
{
if (isVar($words[1]) && isBool($words[2]) && isBool($words[3]))
{
$xml = addThreeArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "NOT":
if (count($words) == 4)
{
if (isVar($words[1]) && isBool($words[2]) && isBool($words[3]))
{
$xml = addThreeArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "INT2CHAR":
if (count($words) == 3)
{
if(isVar($words[1]) && isSymbol($words[2]))
{
$xml = addTwoArgument($xml, $words[0], $words[1], "var",getValue($words[2]),getTypeIpp($words[2]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "STRI2INT":
if (count($words) == 4)
{
if (isVar($words[1]) && isSymbol($words[2]) && isSymbol($words[3]))
{
$xml = addThreeArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "READ":
if (count($words) == 3)
{
if(isVar($words[1]) && isType($words[2]))
{
$xml = addTwoArgument($xml, $words[0], $words[1], "var",getValue($words[2]),getTypeIpp($words[2]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "WRITE":
if (count($words) == 2)
{
if (isSymbol($words[1]))
{
$xml = addOneArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "CONCAT":
if (count($words) == 4)
{
if (isVar($words[1]) && isSymbol($words[2]) && isSymbol($words[3]))
{
$xml = addThreeArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "STRLEN":
if (count($words) == 3)
{
if(isVar($words[1]) && isSymbol($words[2]))
{
$xml = addTwoArgument($xml, $words[0], $words[1], "var",getValue($words[2]),getTypeIpp($words[2]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "GETCHAR":
if (count($words) == 4)
{
if (isVar($words[1]) && isSymbol($words[2]) && isSymbol($words[3]))
{
$xml = addThreeArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "SETCHAR":
if (count($words) == 4)
{
if (isVar($words[1]) && isSymbol($words[2]) && isSymbol($words[3]))
{
$xml = addThreeArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "TYPE":
if (count($words) == 3)
{
if(isVar($words[1]) && isSymbol($words[2]))
{
$xml = addTwoArgument($xml, $words[0], $words[1], "var",getValue($words[2]),getTypeIpp($words[2]));
}
else
exit(23);
}
break;
case "LABEL":
if (count($words) == 2)
{
if (isLabel($words[1]))
{
$xml = addOneArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "JUMP":
if (count($words) == 2)
{
if (isLabel($words[1]))
{
$xml = addOneArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "JUMPIFEQ":
if (count($words) == 4)
{
if (isLabel($words[1]) && isSymbol($words[2]) && isSymbol($words[3]))
{
$xml = addThreeArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "JUMPIFNEQ":
if (count($words) == 4)
{
if (isLabel($words[1]) && isSymbol($words[2]) && isSymbol($words[3]))
{
$xml = addThreeArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]), getValue($words[2]), getTypeIpp($words[2]), getValue($words[3]), getTypeIpp($words[3]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "EXIT":
if (count($words) == 2)
{
if (isSymbol($words[1]))
{
$xml = addOneArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
break;
case "DPRINT":
if (count($words) == 2)
{
if (isSymbol($words[1]))
{
$xml = addOneArgument($xml, $words[0], getValue($words[1]), getTypeIpp($words[1]));
}
else
exit(23);
}
else
{
exit(23);
}
break;
case "BREAK":
if (count($words) == 1)
{
$xml = addNoArgument($xml, $words[0]);
}
else
{
exit(23);
}
break;
default:
echo "Err22: funcia \"$words[0]\" nieje definovaná v IPPcode22!\n";
exit(22);
}
return $xml;
}
else
return $xml;
}
if(sizeof($argv) ==2 && $argv[1] == "--help")
{
echo("\n");
echo (" -----------------------------------------------------------------------------------\n");
echo ("|Pouzitie : 1. parse.php [moznosti] < vstup (typ IPPcode22) , vystup bude na STDOUT|\n");
echo ("| 2. parse.php [moznosti] < vstup (typ IPPcode22) > vystup (typ xml) |\n");
echo ("| |\n");
echo ("|Moznosti : 1. --help: vypise napovedu |\n");
echo ("| : 2. bez parametra: vykona sa preklad na xml format |\n");
echo (" -----------------------------------------------------------------------------------\n");
echo("\n");
exit(0);
}
elseif(sizeof($argv) > 1)
{
exit(10);
}
$xml = new SimpleXMLElement('<?xml version="1.0" encoding="UTF-8"?><program></program>');
$done = false;
while($done != true)
{
$line = fgets(STDIN);
if($line != "\n")
{
$lineWithoutComents = explode('#', trim($line, "\n"));
$words = explode(' ', trim($lineWithoutComents[0], "\n"));
$words = array_filter($words);
$xml=addProgHeader($xml, $words);
$done = true;
}
}
$line = fgets(STDIN);
$line = str_replace('&', '&', $line);
$line = str_replace('<', '<', $line);
$line = str_replace('>', '>', $line);
$lineWithoutComents = explode('#', trim($line, "\n"));
$words = explode(' ', trim($lineWithoutComents[0], "\n"));
$words = array_filter($words);
while ($line!=NULL)
{
$xml = addElement($xml, $words);
$line = fgets(STDIN);
$line = str_replace('&', '&', $line);
$line = str_replace('<', '<', $line);
$line = str_replace('>', '>', $line);
$lineWithoutComents = explode('#', trim($line, "\n"));
$words = explode(' ', trim($lineWithoutComents[0], "\n"));
$words = array_filter($words);
}
$xmlOut = dom_import_simplexml($xml)->ownerDocument;
$xmlOut->formatOutput = true;
echo $xmlOut->saveXML();
?>