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<html><style>body {
font-family: Arial;}.annotation {
color: gray;}</style><body><?php/* SAC: SqlAutoCommannotator: Structured Query Language Automatic Comment AnnotatorSharon Xiao LiuAssumes all SQL given to it is valid. For MySQL to natural language.Work in progress: 20150706-20150730.*//* Use OOP. Loop through arrays. PHP split string by line break.Add a text box.Generate code by analysing each segment before ;. PCRE. Pattern matching PHP. Nest pattern matchingstatements. Match even if the spacing is inconsistent. Select multiple columns.Pattern matching database: AND,OR (always after SELECT) similar to WHERE. First column: regex, depending on how many parentheses there are (count number of open parentheses), extract this information, format the final result.Design UI.Add 1 when meet open bracket, or you find a closed bracket immediately after. Look through the rest of the SQL code. Make a table of all types of translations for sac.JQuery UI Tooltip.*/$sqlBlock = "SELECT * FROM Customers WHERE Country = 'USA';\nSELECT * FROM Suppliers;\nSELECT ID, MiddleName FROM Customers;\nSELECT * FROM Suppliers WHERE House = '87' OR Credit = '90';\nSELECT * FROM Customers WHERE Country = 'Britain' AND Street = 'Belvedere' AND (House = '13' OR (House = '789' AND Start = '20150706') AND (Contact = 'Email' OR Contact = 'Phone'));";
class sac {public function sacWorking ($sqlBlock) {
$sqlBlockTrimEnd = rtrim($sqlBlock, ";");$sqlBlockExploded = explode(";", $sqlBlockTrimEnd);
$output = "";
function parseBrackets($str) {
$length = strlen($str); $stack = array(); $result = array();
for($i=0; $i < $length; $i++) { if($str[$i] == '(') {
$stack[] = $i; }
if($str[$i] == ')') {$open = array_pop($stack);$result[] = substr($str,$open+1, $i-$open-1);
} }
return $result;}
function substitution ($afterNested) {array_unshift($afterNested, "");$counted = count($afterNested);foreach ($afterNested as $key => $value) {
for ($i = $key+1; $i<$counted; $i++) {if (str_replace ($value, $key, $afterNested[$i])
== true) {$afterNested[$i] = str_replace ($value,
$key, $afterNested[$i]);}
}}$arrayIntoString = "";foreach ($afterNested as $key => $value) {
if ($key >= 1) {$arrayIntoString .= $key. ". ". $value. " ";
}}
$replaceEquals = preg_replace ("/\b(\w+)\b\s?=\s?'(\w+)'/", "the column $1 is $2", $arrayIntoString);
$andOrPattern[0] = "/AND/";$andOrPattern[1] = "/OR/";$andOrReplacement[0] = "and";$andOrReplacement[1] = "or";$replaceAndOr = preg_replace ($andOrPattern,
$andOrReplacement, $replaceEquals);return $replaceAndOr;
}
foreach ($sqlBlockExploded as $singleLine) {$output .= htmlspecialchars($singleLine. ";", ENT_QUOTES);$output .= "<br><div class=\"annotation\">";
if (preg_match("/SELECT\s\*/", $singleLine) == true) {$output .= "Select all columns ";
} elseif (preg_match_all("/SELECT\s\b(\w+)\b\sFROM/", $singleLine, $oneAfterSelect, PREG_PATTERN_ORDER) == true) {
$output .= "Select the column ". $oneAfterSelect[1][0];} elseif (preg_match_all("/SELECT\s(.*?)\sFROM/", $singleLine,
$afterSelect, PREG_PATTERN_ORDER) == true) {$output .= "Select the columns ";$explodeAfterSelect = explode (",", $afterSelect[1][0]);foreach ($explodeAfterSelect as $singleColumns) {
if ($singleColumns != end($explodeAfterSelect)) {$output .= $singleColumns . ", ";
} else {$output .= $singleColumns. " ";
}}
}
if (preg_match_all("/FROM\s\b(\w+)\b/", $singleLine, $afterFrom, PREG_PATTERN_ORDER) == true) {
$output .= "from the table ". $afterFrom[1][0];}
if (preg_match_all("/WHERE\s\b(\w+)\b\s?=\s?'(\w+)'/", $singleLine, $afterWhere, PREG_PATTERN_ORDER) == true) {
$output .= " where the column ". $afterWhere[1][0]. " is equal to ". $afterWhere[2][0];
}
if (preg_match_all("/(AND|OR)\s\b(\w+)\b\s?=\s?'(\w+)'/", $singleLine, $afterAndNoBrackets, PREG_PATTERN_ORDER) == true) {
if ($afterAndNoBrackets[1][0] == "AND") {$andOr = " and the column ";
} else {$andOr = " or the column ";
}$output .= $andOr. $afterAndNoBrackets[2][0]. " is equal
to ". $afterAndNoBrackets[3][0];}
if (preg_match_all("/(AND|OR)\s(\(\X+\))$/", $singleLine, $afterAnd, PREG_PATTERN_ORDER) == true) {
if ($afterAnd[1][0] == "AND") {$andOrBracket = ", and ";
} else {$andOrBracket = ", or ";
}$processBrackets = parseBrackets ($afterAnd[2][0]);$processAndOr = substitution($processBrackets);$output .= $andOrBracket. $processAndOr;
}
$output .= ".</div><br>";}
return $output;}
public function sacGenerating () {$regexAnd = "/AND\s\b(\w+)\b\s?=\s?'(\w+)'/";
}}
$obj = new sac;echo $obj->sacWorking($sqlBlock);
/*run on XAMPP*/?></body></html>
