lex

Documentation

Index

• Constants
• Variables
• func DecodeRawBytesToByteArray(data string, be sessiondata.BytesEncodeFormat) ([]byte, error)
• func DecodeRawBytesToByteArrayAuto(data []byte) ([]byte, error)
• func EncodeByteArrayToRawBytes(data string, be sessiondata.BytesEncodeFormat, skipHexPrefix bool) string
• func EncodeEscapedSQLIdent(buf *bytes.Buffer, s string)
• func EncodeLocaleName(buf *bytes.Buffer, s string)
• func EncodeRestrictedSQLIdent(buf *bytes.Buffer, s string, flags EncodeFlags)
• func EncodeSQLBytes(buf *bytes.Buffer, in string)
• func EncodeSQLString(buf *bytes.Buffer, in string)
• func EncodeSQLStringWithFlags(buf *bytes.Buffer, in string, flags EncodeFlags)
• func EncodeUnrestrictedSQLIdent(buf *bytes.Buffer, s string, flags EncodeFlags)
• func EscapeSQLString(in string) string
• func GetKeywordID(k string) int32
• func IsDigit(ch int) bool
• func IsHexDigit(ch int) bool
• func IsIdentMiddle(ch int) bool
• func IsIdentStart(ch int) bool
• func NormalizeName(n string) string
• type EncodeFlags
  • func (f EncodeFlags) HasFlags(subset EncodeFlags) bool

Constants

const ABORT = 57363

const ACTION = 57364

const ADD = 57365

const ADMIN = 57366

const AGGREGATE = 57367

const ALL = 57368

const ALTER = 57369

const ANALYSE = 57370

const ANALYZE = 57371

const AND = 57372

const AND_AND = 57373

const ANNOTATE_TYPE = 57375

const ANY = 57374

const ARRAY = 57376

const AS = 57377

const ASC = 57378

const ASYMMETRIC = 57379

const AS_LA = 57797

const AT = 57380

const AUTHORIZATION = 57381

const AUTOMATIC = 57382

const BACKUP = 57383

const BCONST = 57348

const BEGIN = 57384

const BETWEEN = 57385

const BIGINT = 57386

const BIGSERIAL = 57387

const BIT = 57388

const BITCONST = 57349

const BLOB = 57390

const BOOL = 57391

const BOOLEAN = 57392

const BOTH = 57393

const BUCKET_COUNT = 57389

const BUNDLE = 57394

const BY = 57395

const BYTEA = 57396

const BYTES = 57397

const CACHE = 57398

const CANCEL = 57399

const CASCADE = 57400

const CASE = 57401

const CAST = 57402

const CHANGEFEED = 57403

const CHAR = 57404

const CHARACTER = 57405

const CHARACTERISTICS = 57406

const CHECK = 57407

const CLUSTER = 57408

const COALESCE = 57409

const COLLATE = 57410

const COLLATION = 57411

const COLUMN = 57412

const COLUMNS = 57413

const COMMENT = 57414

const COMMIT = 57415

const COMMITTED = 57416

const COMPACT = 57417

const COMPLETE = 57418

const CONCAT = 57419

const CONCURRENTLY = 57420

const CONFIGURATION = 57421

const CONFIGURATIONS = 57422

const CONFIGURE = 57423

const CONFLICT = 57424

const CONSTRAINT = 57425

const CONSTRAINTS = 57426

const CONTAINED_BY = 57798

const CONTAINS = 57427

const CONVERSION = 57428

const COPY = 57429

const COVERING = 57430

const CREATE = 57431

const CREATEROLE = 57432

const CROSS = 57433

const CUBE = 57434

const CURRENT = 57435

const CURRENT_CATALOG = 57436

const CURRENT_DATE = 57437

const CURRENT_ROLE = 57439

const CURRENT_SCHEMA = 57438

const CURRENT_TIME = 57440

const CURRENT_TIMESTAMP = 57441

const CURRENT_USER = 57442

const CYCLE = 57443

const DATA = 57444

const DATABASE = 57445

const DATABASES = 57446

const DATE = 57447

const DAY = 57448

const DEALLOCATE = 57452

const DEC = 57449

const DECIMAL = 57450

const DEFAULT = 57451

const DEFERRABLE = 57453

const DEFERRED = 57454

const DELETE = 57455

const DESC = 57456

const DISCARD = 57457

const DISTINCT = 57458

const DO = 57459

const DOMAIN = 57460

const DOT_DOT = 57355

const DOUBLE = 57461

const DROP = 57462

const ELSE = 57463

const ENCODING = 57464

const END = 57465

const ENUM = 57466

const ERROR = 57362

const ESCAPE = 57467

const EXCEPT = 57468

const EXCLUDE = 57469

const EXECUTE = 57471

const EXISTS = 57470

const EXPERIMENTAL = 57472

const EXPERIMENTAL_AUDIT = 57475

const EXPERIMENTAL_FINGERPRINTS = 57473

const EXPERIMENTAL_RELOCATE = 57739

const EXPERIMENTAL_REPLICA = 57474

const EXPIRATION = 57476

const EXPLAIN = 57477

const EXPORT = 57478

const EXTENSION = 57479

const EXTRACT = 57480

const EXTRACT_DURATION = 57481

const FALSE = 57482

const FAMILY = 57483

const FCONST = 57351

const FETCH = 57484

const FETCHTEXT = 57486

const FETCHTEXT_PATH = 57488

const FETCHVAL = 57485

const FETCHVAL_PATH = 57487

const FILES = 57489

const FILTER = 57490

const FIRST = 57491

const FLOAT = 57492

const FLOAT4 = 57493

const FLOAT8 = 57494

const FLOORDIV = 57495

const FOLLOWING = 57496

const FOR = 57497

const FORCE_INDEX = 57498

const FOREIGN = 57499

const FROM = 57500

const FULL = 57501

const FUNCTION = 57502

const GLOBAL = 57503

const GRANT = 57504

const GRANTS = 57505

const GREATER_EQUALS = 57357

const GREATEST = 57506

const GROUP = 57507

const GROUPING = 57508

const GROUPS = 57509

const HASH = 57511

const HAVING = 57510

const HELPTOKEN = 57801

const HIGH = 57512

const HISTOGRAM = 57513

const HOUR = 57514

const ICONST = 57350

const IDENT = 57346

const IF = 57515

const IFERROR = 57516

const IFNULL = 57517

const IGNORE_FOREIGN_KEYS = 57518

const ILIKE = 57519

const IMMEDIATE = 57520

const IMPORT = 57521

const IN = 57522

const INCLUDE = 57523

const INCREMENT = 57524

const INCREMENTAL = 57525

const INDEX = 57529

const INDEXES = 57530

const INET = 57526

const INET_CONTAINED_BY_OR_EQUALS = 57527

const INET_CONTAINS_OR_EQUALS = 57528

const INITIALLY = 57533

const INJECT = 57531

const INNER = 57534

const INSERT = 57535

const INT = 57536

const INT2 = 57538

const INT2VECTOR = 57537

const INT4 = 57539

const INT64 = 57541

const INT8 = 57540

const INTEGER = 57542

const INTERLEAVE = 57532

const INTERSECT = 57543

const INTERVAL = 57544

const INTO = 57545

const INVERTED = 57546

const IS = 57547

const ISERROR = 57548

const ISNULL = 57549

const ISOLATION = 57550

const JOB = 57551

const JOBS = 57552

const JOIN = 57553

const JSON = 57554

const JSONB = 57555

const JSON_ALL_EXISTS = 57557

const JSON_SOME_EXISTS = 57556

const KEY = 57558

const KEYS = 57559

const KV = 57560

const LANGUAGE = 57561

const LAST = 57562

const LATERAL = 57563

const LC_COLLATE = 57565

const LC_CTYPE = 57564

const LEADING = 57566

const LEASE = 57567

const LEAST = 57568

const LEFT = 57569

const LESS = 57570

const LESS_EQUALS = 57356

const LEVEL = 57571

const LIKE = 57572

const LIMIT = 57573

const LIST = 57574

const LOCAL = 57575

const LOCALTIME = 57576

const LOCALTIMESTAMP = 57577

const LOCKED = 57578

const LOGIN = 57579

const LOOKUP = 57580

const LOW = 57581

const LSHIFT = 57582

const MATCH = 57583

const MATERIALIZED = 57584

const MAXVALUE = 57587

const MERGE = 57585

const MINUTE = 57588

const MINVALUE = 57586

const MONTH = 57589

const NAME = 57591

const NAMES = 57592

const NAN = 57590

const NATURAL = 57593

const NEXT = 57594

const NO = 57595

const NOCREATEROLE = 57596

const NOLOGIN = 57597

const NONE = 57599

const NORMAL = 57600

const NOT = 57601

const NOTHING = 57602

const NOTNULL = 57603

const NOT_EQUALS = 57358

const NOT_LA = 57795

const NOT_REGIMATCH = 57361

const NOT_REGMATCH = 57359

const NOWAIT = 57604

const NO_INDEX_JOIN = 57598

const NULL = 57605

const NULLIF = 57606

const NULLS = 57607

const NUMERIC = 57608

const OF = 57609

const OFF = 57610

const OFFSET = 57611

const OID = 57612

const OIDS = 57613

const OIDVECTOR = 57614

const ON = 57615

const ONLY = 57616

const OPERATOR = 57630

const OPT = 57617

const OPTION = 57618

const OPTIONS = 57619

const OR = 57620

const ORDER = 57621

const ORDINALITY = 57622

const OTHERS = 57623

const OUT = 57624

const OUTER = 57625

const OVER = 57626

const OVERLAPS = 57627

const OVERLAY = 57628

const OWNED = 57629

const PARENT = 57631

const PARTIAL = 57632

const PARTITION = 57633

const PARTITIONS = 57634

const PASSWORD = 57635

const PAUSE = 57636

const PHYSICAL = 57637

const PLACEHOLDER = 57352

const PLACING = 57638

const PLAN = 57639

const PLANS = 57640

const POSITION = 57641

const POSTFIXOP = 57799

const PRECEDING = 57642

const PRECISION = 57643

const PREPARE = 57644

const PRESERVE = 57645

const PRIMARY = 57646

const PRIORITY = 57647

const PROCEDURAL = 57648

const PUBLIC = 57649

const PUBLICATION = 57650

const QUERIES = 57651

const QUERY = 57652

const RANGE = 57653

const RANGES = 57654

const READ = 57655

const REAL = 57656

const RECURSIVE = 57657

const REF = 57658

const REFERENCES = 57659

const REGCLASS = 57660

const REGIMATCH = 57360

const REGNAMESPACE = 57663

const REGPROC = 57661

const REGPROCEDURE = 57662

const REGTYPE = 57664

const REINDEX = 57665

const RELEASE = 57670

const REMOVE_PATH = 57666

const RENAME = 57667

const REPEATABLE = 57668

const REPLACE = 57669

const RESET = 57671

const RESTORE = 57672

const RESTRICT = 57673

const RESUME = 57674

const RETURNING = 57675

const REVOKE = 57676

const RIGHT = 57677

const ROLE = 57678

const ROLES = 57679

const ROLLBACK = 57680

const ROLLUP = 57681

const ROW = 57682

const ROWS = 57683

const RSHIFT = 57684

const RULE = 57685

const SAVEPOINT = 57686

const SCATTER = 57687

const SCHEMA = 57688

const SCHEMAS = 57689

const SCONST = 57347

const SCRUB = 57690

const SEARCH = 57691

const SECOND = 57692

const SELECT = 57693

const SEQUENCE = 57694

const SEQUENCES = 57695

const SERIAL = 57696

const SERIAL2 = 57697

const SERIAL4 = 57698

const SERIAL8 = 57699

const SERIALIZABLE = 57700

const SERVER = 57701

const SESSION = 57702

const SESSIONS = 57703

const SESSION_USER = 57704

const SET = 57705

const SETTING = 57706

const SETTINGS = 57707

const SHARE = 57708

const SHOW = 57709

const SIMILAR = 57710

const SIMPLE = 57711

const SKIP = 57712

const SMALLINT = 57713

const SMALLSERIAL = 57714

const SNAPSHOT = 57715

const SOME = 57716

const SPLIT = 57717

const SQL = 57718

const START = 57719

const STATISTICS = 57720

const STATUS = 57721

const STDIN = 57722

const STORE = 57725

const STORED = 57726

const STORING = 57727

const STRICT = 57723

const STRING = 57724

const SUBSCRIPTION = 57732

const SUBSTRING = 57728

const SYMMETRIC = 57729

const SYNTAX = 57730

const SYSTEM = 57731

const TABLE = 57733

const TABLES = 57734

const TEMP = 57735

const TEMPLATE = 57736

const TEMPORARY = 57737

const TESTING_RELOCATE = 57738

const TEXT = 57740

const THEN = 57741

const THROTTLING = 57748

const TIES = 57742

const TIME = 57743

const TIMESTAMP = 57745

const TIMESTAMPTZ = 57746

const TIMETZ = 57744

const TO = 57747

const TRACE = 57750

const TRACING = 57759

const TRAILING = 57749

const TRANSACTION = 57751

const TREAT = 57752

const TRIGGER = 57753

const TRIM = 57754

const TRUE = 57755

const TRUNCATE = 57756

const TRUSTED = 57757

const TYPE = 57758

const TYPEANNOTATE = 57354

const TYPECAST = 57353

const UMINUS = 57800

const UNBOUNDED = 57760

const UNCOMMITTED = 57761

const UNION = 57762

const UNIQUE = 57763

const UNKNOWN = 57764

const UNLOGGED = 57765

const UNSPLIT = 57766

const UNTIL = 57769

const UPDATE = 57767

const UPSERT = 57768

const USE = 57770

const USER = 57771

const USERS = 57772

const USING = 57773

const UUID = 57774

const VALID = 57775

const VALIDATE = 57776

const VALUE = 57777

const VALUES = 57778

const VARBIT = 57779

const VARCHAR = 57780

const VARIADIC = 57781

const VARYING = 57783

const VIEW = 57782

const VIRTUAL = 57784

const WHEN = 57785

const WHERE = 57786

const WINDOW = 57787

const WITH = 57788

const WITHIN = 57789

const WITHOUT = 57790

const WITH_LA = 57796

const WORK = 57791

const WRITE = 57792

const YEAR = 57793

const ZONE = 57794

Variables

var AllowedExperimental = map[string]struct{}{
	"ranges": {},
}

AllowedExperimental contains keywords for which the EXPERIMENTAL_ or TESTING_ prefixes are allowed to be parsed along with the keyword to the same token. This ambiguity exists during the deprecation period of an EXPERIMENTAL_ keyword as it is being transitioned to the normal version. Once the transition is done, the keyword should be removed from here as well.

var KeywordNames = []string{}/* 415 elements not displayed */

KeywordNames contains all keywords sorted, so that pg_get_keywords returns deterministic results.

var KeywordsCategories = map[string]string{}/* 415 elements not displayed */

Functions

func DecodeRawBytesToByteArray

func DecodeRawBytesToByteArray(data string, be sessiondata.BytesEncodeFormat) ([]byte, error)

DecodeRawBytesToByteArray converts raw bytes to a SQL-level byte array according to the encoding specification in "be". When using the Hex format, the caller is responsible for skipping the "\x" prefix, if any. See DecodeRawBytesToByteArrayAuto() below for an alternative.

func DecodeRawBytesToByteArrayAuto

func DecodeRawBytesToByteArrayAuto(data []byte) ([]byte, error)

DecodeRawBytesToByteArrayAuto detects which format to use with DecodeRawBytesToByteArray(). It only supports hex ("\x" prefix) and escape.

func EncodeByteArrayToRawBytes

func EncodeByteArrayToRawBytes(
	data string, be sessiondata.BytesEncodeFormat, skipHexPrefix bool,
) string

EncodeByteArrayToRawBytes converts a SQL-level byte array into raw bytes according to the encoding specification in "be". If the skipHexPrefix argument is set, the hexadecimal encoding does not prefix the output with "\x". This is suitable e.g. for the encode() built-in.

func EncodeEscapedSQLIdent

func EncodeEscapedSQLIdent(buf *bytes.Buffer, s string)

EncodeEscapedSQLIdent writes the identifier in s to buf. The identifier is always quoted. Double quotes inside the identifier are escaped.

func EncodeLocaleName

func EncodeLocaleName(buf *bytes.Buffer, s string)

EncodeLocaleName writes the locale identifier in s to buf. Any dash characters are mapped to underscore characters. Underscore characters do not need to be quoted, and they are considered equivalent to dash characters by the CLDR standard: http://cldr.unicode.org/.

func EncodeRestrictedSQLIdent

func EncodeRestrictedSQLIdent(buf *bytes.Buffer, s string, flags EncodeFlags)

EncodeRestrictedSQLIdent writes the identifier in s to buf. The identifier is quoted if either the flags ask for it, the identifier contains special characters, or the identifier is a reserved SQL keyword.

func EncodeSQLBytes

func EncodeSQLBytes(buf *bytes.Buffer, in string)

EncodeSQLBytes encodes the SQL byte array in 'in' to buf, to a format suitable for re-scanning. We don't use a straightforward hex encoding here with x'...' because the result would be less compact. We are trading a little more time during the encoding to have a little less bytes on the wire.

func EncodeSQLString

func EncodeSQLString(buf *bytes.Buffer, in string)

EncodeSQLString writes a string literal to buf. All unicode and non-printable characters are escaped.

func EncodeSQLStringWithFlags

func EncodeSQLStringWithFlags(buf *bytes.Buffer, in string, flags EncodeFlags)

EncodeSQLStringWithFlags writes a string literal to buf. All unicode and non-printable characters are escaped. flags controls the output format: if encodeBareString is set, the output string will not be wrapped in quotes if the strings contains no special characters.

func EncodeUnrestrictedSQLIdent

func EncodeUnrestrictedSQLIdent(buf *bytes.Buffer, s string, flags EncodeFlags)

EncodeUnrestrictedSQLIdent writes the identifier in s to buf. The identifier is only quoted if the flags don't tell otherwise and the identifier contains special characters.

func EscapeSQLString

func EscapeSQLString(in string) string

EscapeSQLString returns an escaped SQL representation of the given string. This is suitable for safely producing a SQL string valid for input to the parser.

func GetKeywordID

func GetKeywordID(k string) int32

GetKeywordID returns the lex id of the SQL keyword k or IDENT if k is not a keyword.

func IsDigit

func IsDigit(ch int) bool

IsDigit returns true if the character is between 0 and 9.

func IsHexDigit

func IsHexDigit(ch int) bool

IsHexDigit returns true if the character is a valid hexadecimal digit.

func IsIdentMiddle

func IsIdentMiddle(ch int) bool

IsIdentMiddle returns true if the character is valid inside an identifier.

func IsIdentStart

func IsIdentStart(ch int) bool

IsIdentStart returns true if the character is valid at the start of an identifier.

func NormalizeName

func NormalizeName(n string) string

NormalizeName normalizes to lowercase and Unicode Normalization Form C (NFC).

Types

type EncodeFlags

type EncodeFlags int

EncodeFlags influence the formatting of strings and identifiers.

const (
	// EncNoFlags indicates nothing special should happen while encoding.
	EncNoFlags EncodeFlags = 0

	// EncBareStrings indicates that strings will be rendered without
	// wrapping quotes if they contain no special characters.
	EncBareStrings EncodeFlags = 1 << iota

	// EncBareIdentifiers indicates that identifiers will be rendered
	// without wrapping quotes.
	EncBareIdentifiers

	// EncFirstFreeFlagBit needs to remain unused; it is used as base
	// bit offset for tree.FmtFlags.
	EncFirstFreeFlagBit
)

func (EncodeFlags) HasFlags

func (f EncodeFlags) HasFlags(subset EncodeFlags) bool

HasFlags tests whether the given flags are set.