/**
* Returns a SQL string in a readable human-friendly format.
*
* @param string $sql
*
* @return string
*/
public function format($sql)
{
$this->reset();
$tab = "\t";
$originalTokens = $this->tokenizer->tokenize((string) $sql);
$tokens = WhiteSpace::removeTokenWhitespace($originalTokens);
foreach ($tokens as $i => $token) {
$queryValue = $token[Tokenizer::TOKEN_VALUE];
$this->indentation->increaseSpecialIndent()->increaseBlockIndent();
$addedNewline = $this->newLine->addNewLineBreak($tab);
if ($this->comment->stringHasCommentToken($token)) {
$this->formattedSql = $this->comment->writeCommentBlock($token, $tab, $queryValue);
continue;
}
if ($this->parentheses->getInlineParentheses()) {
if ($this->parentheses->stringIsClosingParentheses($token)) {
$this->parentheses->writeInlineParenthesesBlock($tab, $queryValue);
continue;
}
$this->newLine->writeNewLineForLongCommaInlineValues($token);
$this->inlineCount += strlen($token[Tokenizer::TOKEN_VALUE]);
}
switch ($token) {
case $this->parentheses->stringIsOpeningParentheses($token):
$tokens = $this->formatOpeningParenthesis($token, $i, $tokens, $originalTokens);
break;
case $this->parentheses->stringIsClosingParentheses($token):
$this->indentation->decreaseIndentLevelUntilIndentTypeIsSpecial($this);
$this->newLine->addNewLineBeforeToken($addedNewline, $tab);
break;
case $this->stringIsEndOfLimitClause($token):
$this->clauseLimit = false;
break;
case $token[Tokenizer::TOKEN_VALUE] === ',' && false === $this->parentheses->getInlineParentheses():
$this->newLine->writeNewLineBecauseOfComma();
break;
case Token::isTokenTypeReservedTopLevel($token):
$queryValue = $this->formatTokenTypeReservedTopLevel($addedNewline, $tab, $token, $queryValue);
break;
case $this->newLine->isTokenTypeReservedNewLine($token):
$this->newLine->addNewLineBeforeToken($addedNewline, $tab);
if (WhiteSpace::tokenHasExtraWhiteSpaces($token)) {
$queryValue = preg_replace('/\\s+/', ' ', $queryValue);
}
break;
}
$this->formatBoundaryCharacterToken($token, $i, $tokens, $originalTokens);
$this->formatWhiteSpaceToken($token, $queryValue);
$this->formatDashToken($token, $i, $tokens);
}
return trim(str_replace(array("\t", " \n"), array($this->tab, "\n"), $this->formattedSql)) . "\n";
}
