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How to use prev method of token class

Best Atoum code snippet using token.prev

ExpressionListProcessor.php

Source:ExpressionListProcessor.php

...43class ExpressionListProcessor extends AbstractProcessor {44    public function process($tokens) {45        $resultList = array();46        $skip_next = false;47        $prev = new ExpressionToken();48        foreach ($tokens as $k => $v) {49            $curr = new ExpressionToken($k, $v);50            if ($curr->isWhitespaceToken()) {51                continue;52            }53            if ($skip_next) {54                // skip the next non-whitespace token55                $skip_next = false;56                continue;57            }58            /* is it a subquery? */59            if ($curr->isSubQueryToken()) {60                $processor = new DefaultProcessor();61                $curr->setSubTree($processor->process($this->removeParenthesisFromStart($curr->getTrim())));62                $curr->setTokenType(ExpressionType::SUBQUERY);63            } elseif ($curr->isEnclosedWithinParenthesis()) {64                /* is it an in-list? */65                $localTokenList = $this->splitSQLIntoTokens($this->removeParenthesisFromStart($curr->getTrim()));66                if ($prev->getUpper() === 'IN') {67                    foreach ($localTokenList as $k => $v) {68                        $tmpToken = new ExpressionToken($k, $v);69                        if ($tmpToken->isCommaToken()) {70                            unset($localTokenList[$k]);71                        }72                    }73                    $localTokenList = array_values($localTokenList);74                    $curr->setSubTree($this->process($localTokenList));75                    $curr->setTokenType(ExpressionType::IN_LIST);76                } elseif ($prev->getUpper() === 'AGAINST') {77                    $match_mode = false;78                    foreach ($localTokenList as $k => $v) {79                        $tmpToken = new ExpressionToken($k, $v);80                        switch ($tmpToken->getUpper()) {81                        case 'WITH':82                            $match_mode = 'WITH QUERY EXPANSION';83                            break;84                        case 'IN':85                            $match_mode = 'IN BOOLEAN MODE';86                            break;87                        default:88                        }89                        if ($match_mode !== false) {90                            unset($localTokenList[$k]);91                        }92                    }93                    $tmpToken = $this->process($localTokenList);94                    if ($match_mode !== false) {95                        $match_mode = new ExpressionToken(0, $match_mode);96                        $match_mode->setTokenType(ExpressionType::MATCH_MODE);97                        $tmpToken[] = $match_mode->toArray();98                    }99                    $curr->setSubTree($tmpToken);100                    $curr->setTokenType(ExpressionType::MATCH_ARGUMENTS);101                    $prev->setTokenType(ExpressionType::SIMPLE_FUNCTION);102                } elseif ($prev->isColumnReference() || $prev->isFunction() || $prev->isAggregateFunction()) {103                    // if we have a colref followed by a parenthesis pair,104                    // it isn't a colref, it is a user-function105                    // TODO: this should be a method, because we need the same code106                    // below for unspecified tokens (expressions).107                    $localExpr = new ExpressionToken();108                    $tmpExprList = array();109                    foreach ($localTokenList as $k => $v) {110                        $tmpToken = new ExpressionToken($k, $v);111                        if (!$tmpToken->isCommaToken()) {112                            $localExpr->addToken($v);113                            $tmpExprList[] = $v;114                        } else {115                            // an expression could have multiple parts split by operands116                            // if we have a comma, it is a split-point for expressions117                            $tmpExprList = array_values($tmpExprList);118                            $localExprList = $this->process($tmpExprList);119                            if (count($localExprList) > 1) {120                                $localExpr->setSubTree($localExprList);121                                $localExpr->setTokenType(ExpressionType::EXPRESSION);122                                $localExprList = $localExpr->toArray();123                                $localExprList['alias'] = false;124                                $localExprList = array($localExprList);125                            }126                            if (!$curr->getSubTree()) {127                                $curr->setSubTree($localExprList);128                            } else {129                                $tmpExprList = $curr->getSubTree();130                                $curr->setSubTree(array_merge($tmpExprList, $localExprList));131                            }132                            $tmpExprList = array();133                            $localExpr = new ExpressionToken();134                        }135                    }136                    $tmpExprList = array_values($tmpExprList);137                    $localExprList = $this->process($tmpExprList);138                    if (count($localExprList) > 1) {139                        $localExpr->setSubTree($localExprList);140                        $localExpr->setTokenType(ExpressionType::EXPRESSION);141                        $localExprList = $localExpr->toArray();142                        $localExprList['alias'] = false;143                        $localExprList = array($localExprList);144                    }145                    if (!$curr->getSubTree()) {146                        $curr->setSubTree($localExprList);147                    } else {148                        $tmpExprList = $curr->getSubTree();149                        $curr->setSubTree(array_merge($tmpExprList, $localExprList));150                    }151                    $prev->setSubTree($curr->getSubTree());152                    if ($prev->isColumnReference()) {153                        $prev->setTokenType(ExpressionType::SIMPLE_FUNCTION);154                        $prev->setNoQuotes(null);155                    }156                    array_pop($resultList);157                    $curr = $prev;158                }159                // we have parenthesis, but it seems to be an expression160                if ($curr->isUnspecified()) {161                    // TODO: the localTokenList could contain commas and further expressions,162                    // we must handle that like function parameters (see above)!163                    // this should solve issue 51164                    $curr->setSubTree($this->process($localTokenList));165                    $curr->setTokenType(ExpressionType::BRACKET_EXPRESSION);166                }167            } elseif ($curr->isVariableToken()) {168                # a variable169                # it can be quoted170                $curr->setTokenType($this->getVariableType($curr->getUpper()));171                $curr->setSubTree(false);172                $curr->setNoQuotes(trim(trim($curr->getToken()), '@'), "`'\"");173            } else {174                /* it is either an operator, a colref or a constant */175                switch ($curr->getUpper()) {176                case '*':177                    $curr->setSubTree(false); // o subtree178                    // single or first element of expression list -> all-column-alias179                    if (empty($resultList)) {180                        $curr->setTokenType(ExpressionType::COLREF);181                        break;182                    }183                    // if the last token is colref, const or expression184                    // then * is an operator185                    // but if the previous colref ends with a dot, the * is the all-columns-alias186                    if (!$prev->isColumnReference() && !$prev->isConstant() && !$prev->isExpression()187                            && !$prev->isBracketExpression() && !$prev->isAggregateFunction() && !$prev->isVariable()) {188                        $curr->setTokenType(ExpressionType::COLREF);189                        break;190                    }191                    if ($prev->isColumnReference() && $prev->endsWith(".")) {192                        $prev->addToken('*'); // tablealias dot *193                        continue 2; // skip the current token194                    }195                    $curr->setTokenType(ExpressionType::OPERATOR);196                    break;197                case ':=':198                case 'AND':199                case '&&':200                case 'BETWEEN':201                case 'AND':202                case 'BINARY':203                case '&':204                case '~':205                case '|':206                case '^':207                case 'DIV':208                case '/':209                case '<=>':210                case '=':211                case '>=':212                case '>':213                case 'IS':214                case 'NOT':215                case '<<':216                case '<=':217                case '<':218                case 'LIKE':219                case '%':220                case '!=':221                case '<>':222                case 'REGEXP':223                case '!':224                case '||':225                case 'OR':226                case '>>':227                case 'RLIKE':228                case 'SOUNDS':229                case 'XOR':230                case 'IN':231                    $curr->setSubTree(false);232                    $curr->setTokenType(ExpressionType::OPERATOR);233                    break;234                case 'NULL':235                    $curr->setSubTree(false);236                    $curr->setTokenType(ExpressionType::CONSTANT);237                    break;238                case '-':239                case '+':240                // differ between preceding sign and operator241                    $curr->setSubTree(false);242                    if ($prev->isColumnReference() || $prev->isFunction() || $prev->isAggregateFunction()243                            || $prev->isConstant() || $prev->isSubQuery() || $prev->isExpression()244                            || $prev->isBracketExpression() || $prev->isVariable()) {245                        $curr->setTokenType(ExpressionType::OPERATOR);246                    } else {247                        $curr->setTokenType(ExpressionType::SIGN);248                    }249                    break;250                default:251                    $curr->setSubTree(false);252                    switch ($curr->getToken(0)) {253                    case "'":254                    case '"':255                    // it is a string literal256                        $curr->setTokenType(ExpressionType::CONSTANT);257                        break;258                    case '`':259                    // it is an escaped colum name260                        $curr->setTokenType(ExpressionType::COLREF);261                        $curr->setNoQuotes($curr->getToken());262                        break;263                    default:264                        if (is_numeric($curr->getToken())) {265                            if ($prev->isSign()) {266                                $prev->addToken($curr->getToken()); // it is a negative numeric constant267                                $prev->setTokenType(ExpressionType::CONSTANT);268                                continue 3;269                                // skip current token270                            } else {271                                $curr->setTokenType(ExpressionType::CONSTANT);272                            }273                        } else {274                            $curr->setTokenType(ExpressionType::COLREF);275                            $curr->setNoQuotes($curr->getToken());276                        }277                        break;278                    }279                }280            }281            /* is a reserved word? */282            if (!$curr->isOperator() && !$curr->isInList() && !$curr->isFunction() && !$curr->isAggregateFunction()283                    && PHPSQLParserConstants::isReserved($curr->getUpper())) {284                if (PHPSQLParserConstants::isAggregateFunction($curr->getUpper())) {285                    $curr->setTokenType(ExpressionType::AGGREGATE_FUNCTION);286                    $curr->setNoQuotes(null);287                } elseif ($curr->getUpper() === 'NULL') {288                    // it is a reserved word, but we would like to set it as constant289                    $curr->setTokenType(ExpressionType::CONSTANT);290                } else {291                    if (PHPSQLParserConstants::isParameterizedFunction($curr->getUpper())) {292                        // issue 60: check functions with parameters293                        // -> colref (we check parameters later)294                        // -> if there is no parameter, we leave the colref295                        $curr->setTokenType(ExpressionType::COLREF);296                    } elseif (PHPSQLParserConstants::isFunction($curr->getUpper())) {297                        $curr->setTokenType(ExpressionType::SIMPLE_FUNCTION);298                        $curr->setNoQuotes(null);299                    } else {300                        $curr->setTokenType(ExpressionType::RESERVED);301                        $curr->setNoQuotes(null);302                    }303                }304            }305            // issue 94, INTERVAL 1 MONTH306            if ($curr->isConstant() && PHPSQLParserConstants::isParameterizedFunction($prev->getUpper())) {307                $prev->setTokenType(ExpressionType::RESERVED);308                $prev->setNoQuotes(null);309            }310            if ($prev->isConstant() && PHPSQLParserConstants::isParameterizedFunction($curr->getUpper())) {311                $curr->setTokenType(ExpressionType::RESERVED);312                $curr->setNoQuotes(null);313            }314            if ($curr->isUnspecified()) {315                $curr->setTokenType(ExpressionType::EXPRESSION);316                $curr->setNoQuotes(null);317                $curr->setSubTree($this->process($this->splitSQLIntoTokens($curr->getTrim())));318            }319            $resultList[] = $curr;320            $prev = $curr;321        } // end of for-loop322        return $this->toArray($resultList);323    }324}325?>...

SQLProcessor.php

Source:SQLProcessor.php

...43     * This function breaks up the SQL statement into logical sections. 44     * Some sections are then further handled by specialized processors.45     */46    public function process($tokens) {47        $prev_category = "";48        $token_category = "";49        $skip_next = 0;50        $out = false;51        $tokenCount = count($tokens);52        for ($tokenNumber = 0; $tokenNumber < $tokenCount; ++$tokenNumber) {53            $token = $tokens[$tokenNumber];54            $trim = trim($token); // this removes also \n and \t!55            // if it starts with an "(", it should follow a SELECT56            if ($trim !== "" && $trim[0] === "(" && $token_category === "") {57                $token_category = 'SELECT';58            }59            /*60             * If it isn't obvious, when $skip_next is set, then we ignore the next real token, that is we ignore whitespace.61             */62            if ($skip_next > 0) {63                if ($trim === "") {64                    if ($token_category !== "") { # is this correct??65                        $out[$token_category][] = $token;66                    }67                    continue;68                }69                #to skip the token we replace it with whitespace70                $trim = "";71                $token = "";72                $skip_next--;73                if ($skip_next > 0) {74                    continue;75                }76            }77            $upper = strtoupper($trim);78            switch ($upper) {79            /* Tokens that get their own sections. These keywords have subclauses. */80            case 'SELECT':81            case 'ORDER':82            case 'DUPLICATE':83            case 'VALUES':84            case 'GROUP':85            case 'HAVING':86            case 'WHERE':87            case 'CALL':88            case 'PROCEDURE':89            case 'FUNCTION':90            case 'SERVER':91            case 'LOGFILE':92            case 'DEFINER':93            case 'RETURNS':94            case 'TABLESPACE':95            case 'TRIGGER':96            case 'DO':97            case 'FLUSH':98            case 'KILL':99            case 'RESET':100            case 'STOP':101            case 'PURGE':102            case 'EXECUTE':103            case 'PREPARE':104            case 'DEALLOCATE':105                if ($trim === 'DEALLOCATE') {106                    $skip_next = 1;107                }108                $token_category = $upper;109                break;110            case 'SET':111                if ($token_category !== 'TABLE') {112                    $token_category = $upper;113                }114                break;115            case 'LIMIT':116            case 'PLUGIN':117            # no separate section118                if ($token_category === 'SHOW') {119                    continue;120                }121                $token_category = $upper;122                break;123            case 'FROM':124            # this FROM is different from FROM in other DML (not join related)125                if ($token_category === 'PREPARE') {126                    continue 2;127                }128                # no separate section129                if ($token_category === 'SHOW') {130                    continue;131                }132                $token_category = $upper;133                break;134            case 'EXPLAIN':135            case 'DESCRIBE':136            case 'SHOW':137                $token_category = $upper;138                break;139                140            case 'DESC':141                if ($token_category === '') {142                    // short version of DESCRIBE143                    $token_category = $upper;144                }145                // else direction of ORDER-BY146                break;147            case 'RENAME':148            // jump over TABLE keyword149                $token_category = $upper;150                $skip_next = 1;151                continue 2;152            case 'DATABASE':153            case 'SCHEMA':154                if ($prev_category === 'DROP') {155                    continue;156                }157                if ($prev_category === 'SHOW') {158                    continue;159                }160                $token_category = $upper;161                break;162            case 'EVENT':163            // issue 71164                if ($prev_category === 'DROP' || $prev_category === 'ALTER' || $prev_category === 'CREATE') {165                    $token_category = $upper;166                }167                break;168            case 'DATA':169            // prevent wrong handling of DATA as keyword170                if ($prev_category === 'LOAD') {171                    $token_category = $upper;172                }173                break;174            case 'INTO':175            // prevent wrong handling of CACHE within LOAD INDEX INTO CACHE...176                if ($prev_category === 'LOAD') {177                    $out[$prev_category][] = $upper;178                    continue 2;179                }180                $token_category = $upper;181                break;182            case 'USER':183            // prevent wrong processing as keyword184                if ($prev_category === 'CREATE' || $prev_category === 'RENAME' || $prev_category === 'DROP') {185                    $token_category = $upper;186                }187                break;188            case 'VIEW':189            // prevent wrong processing as keyword190                if ($prev_category === 'CREATE' || $prev_category === 'ALTER' || $prev_category === 'DROP') {191                    $token_category = $upper;192                }193                break;194            /*195             * These tokens get their own section, but have no subclauses. These tokens identify the statement but have no specific subclauses of their own.196             */197            case 'DELETE':198            case 'ALTER':199            case 'INSERT':200            case 'TRUNCATE':201            case 'OPTIMIZE':202            case 'GRANT':203            case 'REVOKE':204            case 'HANDLER':205            case 'LOAD':206            case 'ROLLBACK':207            case 'SAVEPOINT':208            case 'UNLOCK':209            case 'INSTALL':210            case 'UNINSTALL':211            case 'ANALZYE':212            case 'BACKUP':213            case 'CHECKSUM':214            case 'REPAIR':215            case 'RESTORE':216            case 'USE':217            case 'HELP':218                $token_category = $upper;219                // set the category in case these get subclauses in a future version of MySQL220                $out[$upper][0] = $upper;221                continue 2;222            case 'REPLACE':223                if ($prev_category === 'TABLE') {224                    # part of the CREATE TABLE statement225                    $out[$prev_category][] = $upper;226                    continue 2;227                }228                // set the category in case these get subclauses in a future version of MySQL229                $token_category = $upper;230                $out[$upper][0] = $upper;231                continue 2;232            case 'IGNORE':233                if ($prev_category === 'TABLE') {234                    # part of the CREATE TABLE statement235                    $out[$prev_category][] = $upper;236                    continue 2;237                }238                $out['OPTIONS'][] = $upper;239                continue 2;240                break;241            case 'CHECK':242                if ($prev_category === 'TABLE') {243                    $out[$prev_category][] = $upper;244                    continue 2;245                }246                $token_category = $upper;247                $out[$upper][0] = $upper;248                continue 2;249            case 'CREATE':250                if ($prev_category === 'SHOW') {251                    continue;252                }253                $token_category = $upper;254                break;255            case 'TABLE':256                if ($prev_category === 'CREATE') {257                    $out[$prev_category][] = $upper;258                    $token_category = $upper;259                }260                break;261            case 'TEMPORARY':262                if ($prev_category === 'CREATE') {263                    $out[$prev_category][] = $upper;264                    $token_category = $prev_category;265                    continue 2;266                }267                break;268            case 'IF':269                if ($prev_category === 'TABLE') {270                    $token_category = 'CREATE';271                    $out[$token_category] = array_merge($out[$token_category], $out[$prev_category]);272                    $out[$prev_category] = array();273                    $out[$token_category][] = $upper;274                    $prev_category = $token_category;275                    continue 2;276                }277                break;278            case 'NOT':279                if ($prev_category === 'CREATE') {280                    $token_category = $prev_category;281                    $out[$prev_category][] = $upper;282                    continue 2;283                }284                break;285            case 'EXISTS':286                if ($prev_category === 'CREATE') {287                    $out[$prev_category][] = $upper;288                    $prev_category = $token_category = 'TABLE';289                    continue 2;290                }291                break;292            case 'CACHE':293                if ($prev_category === "" || $prev_category === 'RESET' || $prev_category === 'FLUSH'294                        || $prev_category === 'LOAD') {295                    $token_category = $upper;296                    continue 2;297                }298                break;299            /* This is either LOCK TABLES or SELECT ... LOCK IN SHARE MODE */300            case 'LOCK':301                if ($token_category === "") {302                    $token_category = $upper;303                    $out[$upper][0] = $upper;304                } else {305                    $trim = 'LOCK IN SHARE MODE';306                    $skip_next = 3;307                    $out['OPTIONS'][] = $trim;308                }309                continue 2;310                break;311            case 'USING': /* USING in FROM clause is different from USING w/ prepared statement*/312                if ($token_category === 'EXECUTE') {313                    $token_category = $upper;314                    continue 2;315                }316                if ($token_category === 'FROM' && !empty($out['DELETE'])) {317                    $token_category = $upper;318                    continue 2;319                }320                break;321            /* DROP TABLE is different from ALTER TABLE DROP ... */322            case 'DROP':323                if ($token_category !== 'ALTER') {324                    $token_category = $upper;325                    continue 2;326                }327                break;328            case 'FOR':329                if ($prev_category === 'SHOW') {330                    continue;331                }332                $skip_next = 1;333                $out['OPTIONS'][] = 'FOR UPDATE';334                continue 2;335                break;336            case 'UPDATE':337                if ($token_category === "") {338                    $token_category = $upper;339                    continue 2;340                }341                if ($token_category === 'DUPLICATE') {342                    continue 2;343                }344                break;345            case 'START':346                $trim = "BEGIN";347                $out[$upper][0] = $upper;348                $skip_next = 1;349                break;350            /* These tokens are ignored. */351            case 'TO':352                if ($token_category === 'RENAME') {353                    break;354                }355            case 'BY':356            case 'ALL':357            case 'SHARE':358            case 'MODE':359            case ';':360                continue 2;361                break;362            case 'KEY':363                if ($token_category === 'DUPLICATE') {364                    continue 2;365                }366                break;367            /* These tokens set particular options for the statement. They never stand alone. */368            case 'LOW_PRIORITY':369            case 'DELAYED':370            case 'FORCE':371            case 'QUICK':372                $out['OPTIONS'][] = $upper;373                continue 2;374                break;375            case 'WITH':376                if ($token_category === 'GROUP') {377                    $skip_next = 1;378                    $out['OPTIONS'][] = 'WITH ROLLUP';379                    continue 2;380                }381                break;382            case 'AS':383                break;384            case '':385            case ',':386            case ';':387                break;388            default:389                break;390            }391            // remove obsolete category after union (empty category because of392            // empty token before select)393            if ($token_category !== "" && ($prev_category === $token_category)) {394                $out[$token_category][] = $token;395            }396            $prev_category = $token_category;397        }398        return parent::process($out);399    }400}401?>...

Using AI Code Generation

1$token = new Token();2$token->prev();3$token = new Token();4$token->next();5$token = new Token();6$token->current();7$token = new Token();8$token->key();9$token = new Token();10$token->valid();11$token = new Token();12$token->rewind();13$token = new Token();14$token->count();15$token = new Token();16$token->offsetExists();17$token = new Token();18$token->offsetGet();19$token = new Token();20$token->offsetSet();21$token = new Token();22$token->offsetUnset();23$token = new Token();24$token->getIterator();25$token = new Token();26$token->serialize();27$token = new Token();28$token->unserialize();29$token = new Token();30$token->__toString();31$token = new Token();32$token->__debugInfo();33$token = new Token();34$token->__sleep();

Using AI Code Generation

1$tokens = token_get_all($code);2$token = new Token($tokens);3while ($token->next()) {4    if ($token->is(T_FUNCTION)) {5        $token->next();6        echo $token->text() . "7";8    }9}10$tokens = token_get_all($code);11$token = new Token($tokens);12while ($token->prev()) {13    if ($token->is(T_FUNCTION)) {14        $token->next();15        echo $token->text() . "16";17    }18}19$tokens = token_get_all($code);20$token = new Token($tokens);21$token->next();22while ($token->next()) {23    if ($token->is(T_FUNCTION)) {24        $token->next();25        echo $token->text() . "26";27    }28}29$tokens = token_get_all($code);30$token = new Token($tokens);31$token->next();32while ($token->next()) {33    if ($token->is(T_FUNCTION)) {34        $token->next();35        echo $token->text() . "36";37    }38}39$tokens = token_get_all($code);40$token = new Token($tokens);41$token->next();42while ($token->next()) {43    if ($token->is(T_FUNCTION)) {44        $token->next();45        echo $token->text() . "46";47    }48}49$tokens = token_get_all($code);50$token = new Token($tokens);51$token->next();52while ($token->next()) {53    if ($token->is(T_FUNCTION)) {54        $token->next();55        echo $token->text() . "56";57    }58}59$tokens = token_get_all($code);60$token = new Token($tokens);61$token->next();62while ($token->next()) {63    if ($token->is(T_FUNCTION)) {64        $token->next();65        echo $token->text() . "66";67    }68}

Using AI Code Generation

1$token = new Token();2$token->prev();3$token->next();4$token->current();5Next Token: (6Current Token: (7Prev Token: (8Next Token: ;9Current Token: ;10Prev Token: ;11Next Token: (12Current Token: (13Prev Token: (14Next Token: ;15Current Token: ;16Prev Token: ;17Next Token: (18Current Token: (19Prev Token: (20Next Token: ;21Current Token: ;22Prev Token: ;

Using AI Code Generation

1$token = new Token;2$token = new Token;3$token = new Token;4$token = new Token;5$token = new Token;6$token = new Token;7$token = new Token;

Using AI Code Generation

1$token = $tokens->current();2while ($token->getType() != T_WHITESPACE) {3    $token = $tokens->prev();4}5echo $token->getName() . ' ' . $token->getValue() . '6';7$token = $tokens->current();8while ($token->getType() != T_WHITESPACE) {9    $token = $tokens->next();10}11echo $token->getName() . ' ' . $token->getValue() . '12';13$token = $tokens->rewind();14echo $token->getName() . ' ' . $token->getValue() . '15';16$token = $tokens->seek(10);17echo $token->getName() . ' ' . $token->getValue() . '18';19$token = $tokens->current();20echo $token->getName() . ' ' . $token->getValue() . '21';22$token = $tokens->current();23echo $tokens->key() . '24';25$token = $tokens->current();26echo $tokens->valid() . '27';28$token = $tokens->current();29echo $tokens->count()

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