function createRegex($inputText)
{
/*
* Create a PCRE regular expression from $inputText.
*/
$words = explode(" ", standardizeText($inputText));
array_map("sanitizeRegex", $words);
//sanitize each word
//glue words together and build the regex
$regex = "/(" . implode(")( )*(", $words) . ")/is";
return $regex;
}
function selectSubstringRandom($inputText, $substringLength)
{
$split = explode(" ", standardizeText($inputText));
//split standardized string into words
$pos = rand(0, strlen($inputText) - $substringLength);
//get a random position
$substring = implode(" ", array_slice($split, $pos, $substringLength));
while (inRepository($substring)) {
//while the chosen substring is found in the repository
$pos = rand(0, strlen($inputText) - $substringLength);
//get a random position
$substring = implode(" ", array_slice($split, $pos, $substringLength));
//pull out the random substring
}
return $substring;
}
function repositoryScore($substring)
{
//TODO: Correct SQL statement, probably wrong
//need standardizeText() here?
$words = explode(" ", standardizeText($substring));
$score = 0;
/*
foreach ($words as $word){
$query = "SELECT $word FROM table";
$score += queryDatabase($query);
}*/
return $score;
}
function inFile($path, $substring)
{
/*
* If substring is found in the specified file, return True.
* Otherwise, return false.
*
* Possibly rewrite this to pass a string that we build a
* regular expression from, and place in common.php?
*/
$file = fopen($path, 'r') or die("inFile(): can't open {$path}");
$text = fread($file, filesize($path));
fclose($file);
$standardText = standardizeText($text);
//if substring is found within the file, flag
if (strripos($standardText, $substring)) {
return True;
}
return False;
}
