sqlglot.tokens
1from __future__ import annotations 2 3import os 4import typing as t 5from enum import auto 6 7from sqlglot.errors import SqlglotError, TokenError 8from sqlglot.helper import AutoName 9from sqlglot.trie import TrieResult, in_trie, new_trie 10 11if t.TYPE_CHECKING: 12 from sqlglot.dialects.dialect import DialectType 13 14 15try: 16 from sqlglotrs import ( # type: ignore 17 Tokenizer as RsTokenizer, 18 TokenizerDialectSettings as RsTokenizerDialectSettings, 19 TokenizerSettings as RsTokenizerSettings, 20 TokenTypeSettings as RsTokenTypeSettings, 21 ) 22 23 USE_RS_TOKENIZER = os.environ.get("SQLGLOTRS_TOKENIZER", "1") == "1" 24except ImportError: 25 USE_RS_TOKENIZER = False 26 27 28class TokenType(AutoName): 29 L_PAREN = auto() 30 R_PAREN = auto() 31 L_BRACKET = auto() 32 R_BRACKET = auto() 33 L_BRACE = auto() 34 R_BRACE = auto() 35 COMMA = auto() 36 DOT = auto() 37 DASH = auto() 38 PLUS = auto() 39 COLON = auto() 40 DCOLON = auto() 41 DQMARK = auto() 42 SEMICOLON = auto() 43 STAR = auto() 44 BACKSLASH = auto() 45 SLASH = auto() 46 LT = auto() 47 LTE = auto() 48 GT = auto() 49 GTE = auto() 50 NOT = auto() 51 EQ = auto() 52 NEQ = auto() 53 NULLSAFE_EQ = auto() 54 COLON_EQ = auto() 55 AND = auto() 56 OR = auto() 57 AMP = auto() 58 DPIPE = auto() 59 PIPE = auto() 60 PIPE_SLASH = auto() 61 DPIPE_SLASH = auto() 62 CARET = auto() 63 TILDA = auto() 64 ARROW = auto() 65 DARROW = auto() 66 FARROW = auto() 67 HASH = auto() 68 HASH_ARROW = auto() 69 DHASH_ARROW = auto() 70 LR_ARROW = auto() 71 DAT = auto() 72 LT_AT = auto() 73 AT_GT = auto() 74 DOLLAR = auto() 75 PARAMETER = auto() 76 SESSION_PARAMETER = auto() 77 DAMP = auto() 78 XOR = auto() 79 DSTAR = auto() 80 81 BLOCK_START = auto() 82 BLOCK_END = auto() 83 84 SPACE = auto() 85 BREAK = auto() 86 87 STRING = auto() 88 NUMBER = auto() 89 IDENTIFIER = auto() 90 DATABASE = auto() 91 COLUMN = auto() 92 COLUMN_DEF = auto() 93 SCHEMA = auto() 94 TABLE = auto() 95 WAREHOUSE = auto() 96 STREAMLIT = auto() 97 VAR = auto() 98 BIT_STRING = auto() 99 HEX_STRING = auto() 100 BYTE_STRING = auto() 101 NATIONAL_STRING = auto() 102 RAW_STRING = auto() 103 HEREDOC_STRING = auto() 104 UNICODE_STRING = auto() 105 106 # types 107 BIT = auto() 108 BOOLEAN = auto() 109 TINYINT = auto() 110 UTINYINT = auto() 111 SMALLINT = auto() 112 USMALLINT = auto() 113 MEDIUMINT = auto() 114 UMEDIUMINT = auto() 115 INT = auto() 116 UINT = auto() 117 BIGINT = auto() 118 UBIGINT = auto() 119 INT128 = auto() 120 UINT128 = auto() 121 INT256 = auto() 122 UINT256 = auto() 123 FLOAT = auto() 124 DOUBLE = auto() 125 DECIMAL = auto() 126 DECIMAL32 = auto() 127 DECIMAL64 = auto() 128 DECIMAL128 = auto() 129 UDECIMAL = auto() 130 BIGDECIMAL = auto() 131 CHAR = auto() 132 NCHAR = auto() 133 VARCHAR = auto() 134 NVARCHAR = auto() 135 BPCHAR = auto() 136 TEXT = auto() 137 MEDIUMTEXT = auto() 138 LONGTEXT = auto() 139 MEDIUMBLOB = auto() 140 LONGBLOB = auto() 141 TINYBLOB = auto() 142 TINYTEXT = auto() 143 NAME = auto() 144 BINARY = auto() 145 VARBINARY = auto() 146 JSON = auto() 147 JSONB = auto() 148 TIME = auto() 149 TIMETZ = auto() 150 TIMESTAMP = auto() 151 TIMESTAMPTZ = auto() 152 TIMESTAMPLTZ = auto() 153 TIMESTAMPNTZ = auto() 154 TIMESTAMP_S = auto() 155 TIMESTAMP_MS = auto() 156 TIMESTAMP_NS = auto() 157 DATETIME = auto() 158 DATETIME64 = auto() 159 DATE = auto() 160 DATE32 = auto() 161 INT4RANGE = auto() 162 INT4MULTIRANGE = auto() 163 INT8RANGE = auto() 164 INT8MULTIRANGE = auto() 165 NUMRANGE = auto() 166 NUMMULTIRANGE = auto() 167 TSRANGE = auto() 168 TSMULTIRANGE = auto() 169 TSTZRANGE = auto() 170 TSTZMULTIRANGE = auto() 171 DATERANGE = auto() 172 DATEMULTIRANGE = auto() 173 UUID = auto() 174 GEOGRAPHY = auto() 175 NULLABLE = auto() 176 GEOMETRY = auto() 177 HLLSKETCH = auto() 178 HSTORE = auto() 179 SUPER = auto() 180 SERIAL = auto() 181 SMALLSERIAL = auto() 182 BIGSERIAL = auto() 183 XML = auto() 184 YEAR = auto() 185 UNIQUEIDENTIFIER = auto() 186 USERDEFINED = auto() 187 MONEY = auto() 188 SMALLMONEY = auto() 189 ROWVERSION = auto() 190 IMAGE = auto() 191 VARIANT = auto() 192 OBJECT = auto() 193 INET = auto() 194 IPADDRESS = auto() 195 IPPREFIX = auto() 196 IPV4 = auto() 197 IPV6 = auto() 198 ENUM = auto() 199 ENUM8 = auto() 200 ENUM16 = auto() 201 FIXEDSTRING = auto() 202 LOWCARDINALITY = auto() 203 NESTED = auto() 204 AGGREGATEFUNCTION = auto() 205 SIMPLEAGGREGATEFUNCTION = auto() 206 TDIGEST = auto() 207 UNKNOWN = auto() 208 VECTOR = auto() 209 210 # keywords 211 ALIAS = auto() 212 ALTER = auto() 213 ALWAYS = auto() 214 ALL = auto() 215 ANTI = auto() 216 ANY = auto() 217 APPLY = auto() 218 ARRAY = auto() 219 ASC = auto() 220 ASOF = auto() 221 AUTO_INCREMENT = auto() 222 BEGIN = auto() 223 BETWEEN = auto() 224 BULK_COLLECT_INTO = auto() 225 CACHE = auto() 226 CASE = auto() 227 CHARACTER_SET = auto() 228 CLUSTER_BY = auto() 229 COLLATE = auto() 230 COMMAND = auto() 231 COMMENT = auto() 232 COMMIT = auto() 233 CONNECT_BY = auto() 234 CONSTRAINT = auto() 235 COPY = auto() 236 CREATE = auto() 237 CROSS = auto() 238 CUBE = auto() 239 CURRENT_DATE = auto() 240 CURRENT_DATETIME = auto() 241 CURRENT_TIME = auto() 242 CURRENT_TIMESTAMP = auto() 243 CURRENT_USER = auto() 244 DECLARE = auto() 245 DEFAULT = auto() 246 DELETE = auto() 247 DESC = auto() 248 DESCRIBE = auto() 249 DICTIONARY = auto() 250 DISTINCT = auto() 251 DISTRIBUTE_BY = auto() 252 DIV = auto() 253 DROP = auto() 254 ELSE = auto() 255 END = auto() 256 ESCAPE = auto() 257 EXCEPT = auto() 258 EXECUTE = auto() 259 EXISTS = auto() 260 FALSE = auto() 261 FETCH = auto() 262 FILTER = auto() 263 FINAL = auto() 264 FIRST = auto() 265 FOR = auto() 266 FORCE = auto() 267 FOREIGN_KEY = auto() 268 FORMAT = auto() 269 FROM = auto() 270 FULL = auto() 271 FUNCTION = auto() 272 GLOB = auto() 273 GLOBAL = auto() 274 GRANT = auto() 275 GROUP_BY = auto() 276 GROUPING_SETS = auto() 277 HAVING = auto() 278 HINT = auto() 279 IGNORE = auto() 280 ILIKE = auto() 281 ILIKE_ANY = auto() 282 IN = auto() 283 INDEX = auto() 284 INNER = auto() 285 INSERT = auto() 286 INTERSECT = auto() 287 INTERVAL = auto() 288 INTO = auto() 289 INTRODUCER = auto() 290 IRLIKE = auto() 291 IS = auto() 292 ISNULL = auto() 293 JOIN = auto() 294 JOIN_MARKER = auto() 295 KEEP = auto() 296 KEY = auto() 297 KILL = auto() 298 LANGUAGE = auto() 299 LATERAL = auto() 300 LEFT = auto() 301 LIKE = auto() 302 LIKE_ANY = auto() 303 LIMIT = auto() 304 LIST = auto() 305 LOAD = auto() 306 LOCK = auto() 307 MAP = auto() 308 MATCH_CONDITION = auto() 309 MATCH_RECOGNIZE = auto() 310 MEMBER_OF = auto() 311 MERGE = auto() 312 MOD = auto() 313 MODEL = auto() 314 NATURAL = auto() 315 NEXT = auto() 316 NOTNULL = auto() 317 NULL = auto() 318 OBJECT_IDENTIFIER = auto() 319 OFFSET = auto() 320 ON = auto() 321 ONLY = auto() 322 OPERATOR = auto() 323 ORDER_BY = auto() 324 ORDER_SIBLINGS_BY = auto() 325 ORDERED = auto() 326 ORDINALITY = auto() 327 OUTER = auto() 328 OVER = auto() 329 OVERLAPS = auto() 330 OVERWRITE = auto() 331 PARTITION = auto() 332 PARTITION_BY = auto() 333 PERCENT = auto() 334 PIVOT = auto() 335 PLACEHOLDER = auto() 336 POSITIONAL = auto() 337 PRAGMA = auto() 338 PREWHERE = auto() 339 PRIMARY_KEY = auto() 340 PROCEDURE = auto() 341 PROPERTIES = auto() 342 PSEUDO_TYPE = auto() 343 QUALIFY = auto() 344 QUOTE = auto() 345 RANGE = auto() 346 RECURSIVE = auto() 347 REFRESH = auto() 348 RENAME = auto() 349 REPLACE = auto() 350 RETURNING = auto() 351 REFERENCES = auto() 352 RIGHT = auto() 353 RLIKE = auto() 354 ROLLBACK = auto() 355 ROLLUP = auto() 356 ROW = auto() 357 ROWS = auto() 358 SELECT = auto() 359 SEMI = auto() 360 SEPARATOR = auto() 361 SEQUENCE = auto() 362 SERDE_PROPERTIES = auto() 363 SET = auto() 364 SETTINGS = auto() 365 SHOW = auto() 366 SIMILAR_TO = auto() 367 SOME = auto() 368 SORT_BY = auto() 369 START_WITH = auto() 370 STORAGE_INTEGRATION = auto() 371 STRAIGHT_JOIN = auto() 372 STRUCT = auto() 373 SUMMARIZE = auto() 374 TABLE_SAMPLE = auto() 375 TAG = auto() 376 TEMPORARY = auto() 377 TOP = auto() 378 THEN = auto() 379 TRUE = auto() 380 TRUNCATE = auto() 381 UNCACHE = auto() 382 UNION = auto() 383 UNNEST = auto() 384 UNPIVOT = auto() 385 UPDATE = auto() 386 USE = auto() 387 USING = auto() 388 VALUES = auto() 389 VIEW = auto() 390 VOLATILE = auto() 391 WHEN = auto() 392 WHERE = auto() 393 WINDOW = auto() 394 WITH = auto() 395 UNIQUE = auto() 396 VERSION_SNAPSHOT = auto() 397 TIMESTAMP_SNAPSHOT = auto() 398 OPTION = auto() 399 400 401_ALL_TOKEN_TYPES = list(TokenType) 402_TOKEN_TYPE_TO_INDEX = {token_type: i for i, token_type in enumerate(_ALL_TOKEN_TYPES)} 403 404 405class Token: 406 __slots__ = ("token_type", "text", "line", "col", "start", "end", "comments") 407 408 @classmethod 409 def number(cls, number: int) -> Token: 410 """Returns a NUMBER token with `number` as its text.""" 411 return cls(TokenType.NUMBER, str(number)) 412 413 @classmethod 414 def string(cls, string: str) -> Token: 415 """Returns a STRING token with `string` as its text.""" 416 return cls(TokenType.STRING, string) 417 418 @classmethod 419 def identifier(cls, identifier: str) -> Token: 420 """Returns an IDENTIFIER token with `identifier` as its text.""" 421 return cls(TokenType.IDENTIFIER, identifier) 422 423 @classmethod 424 def var(cls, var: str) -> Token: 425 """Returns an VAR token with `var` as its text.""" 426 return cls(TokenType.VAR, var) 427 428 def __init__( 429 self, 430 token_type: TokenType, 431 text: str, 432 line: int = 1, 433 col: int = 1, 434 start: int = 0, 435 end: int = 0, 436 comments: t.Optional[t.List[str]] = None, 437 ) -> None: 438 """Token initializer. 439 440 Args: 441 token_type: The TokenType Enum. 442 text: The text of the token. 443 line: The line that the token ends on. 444 col: The column that the token ends on. 445 start: The start index of the token. 446 end: The ending index of the token. 447 comments: The comments to attach to the token. 448 """ 449 self.token_type = token_type 450 self.text = text 451 self.line = line 452 self.col = col 453 self.start = start 454 self.end = end 455 self.comments = [] if comments is None else comments 456 457 def __repr__(self) -> str: 458 attributes = ", ".join(f"{k}: {getattr(self, k)}" for k in self.__slots__) 459 return f"<Token {attributes}>" 460 461 462class _Tokenizer(type): 463 def __new__(cls, clsname, bases, attrs): 464 klass = super().__new__(cls, clsname, bases, attrs) 465 466 def _convert_quotes(arr: t.List[str | t.Tuple[str, str]]) -> t.Dict[str, str]: 467 return dict( 468 (item, item) if isinstance(item, str) else (item[0], item[1]) for item in arr 469 ) 470 471 def _quotes_to_format( 472 token_type: TokenType, arr: t.List[str | t.Tuple[str, str]] 473 ) -> t.Dict[str, t.Tuple[str, TokenType]]: 474 return {k: (v, token_type) for k, v in _convert_quotes(arr).items()} 475 476 klass._QUOTES = _convert_quotes(klass.QUOTES) 477 klass._IDENTIFIERS = _convert_quotes(klass.IDENTIFIERS) 478 479 klass._FORMAT_STRINGS = { 480 **{ 481 p + s: (e, TokenType.NATIONAL_STRING) 482 for s, e in klass._QUOTES.items() 483 for p in ("n", "N") 484 }, 485 **_quotes_to_format(TokenType.BIT_STRING, klass.BIT_STRINGS), 486 **_quotes_to_format(TokenType.BYTE_STRING, klass.BYTE_STRINGS), 487 **_quotes_to_format(TokenType.HEX_STRING, klass.HEX_STRINGS), 488 **_quotes_to_format(TokenType.RAW_STRING, klass.RAW_STRINGS), 489 **_quotes_to_format(TokenType.HEREDOC_STRING, klass.HEREDOC_STRINGS), 490 **_quotes_to_format(TokenType.UNICODE_STRING, klass.UNICODE_STRINGS), 491 } 492 493 klass._STRING_ESCAPES = set(klass.STRING_ESCAPES) 494 klass._IDENTIFIER_ESCAPES = set(klass.IDENTIFIER_ESCAPES) 495 klass._COMMENTS = { 496 **dict( 497 (comment, None) if isinstance(comment, str) else (comment[0], comment[1]) 498 for comment in klass.COMMENTS 499 ), 500 "{#": "#}", # Ensure Jinja comments are tokenized correctly in all dialects 501 } 502 503 klass._KEYWORD_TRIE = new_trie( 504 key.upper() 505 for key in ( 506 *klass.KEYWORDS, 507 *klass._COMMENTS, 508 *klass._QUOTES, 509 *klass._FORMAT_STRINGS, 510 ) 511 if " " in key or any(single in key for single in klass.SINGLE_TOKENS) 512 ) 513 514 if USE_RS_TOKENIZER: 515 settings = RsTokenizerSettings( 516 white_space={k: _TOKEN_TYPE_TO_INDEX[v] for k, v in klass.WHITE_SPACE.items()}, 517 single_tokens={k: _TOKEN_TYPE_TO_INDEX[v] for k, v in klass.SINGLE_TOKENS.items()}, 518 keywords={k: _TOKEN_TYPE_TO_INDEX[v] for k, v in klass.KEYWORDS.items()}, 519 numeric_literals=klass.NUMERIC_LITERALS, 520 identifiers=klass._IDENTIFIERS, 521 identifier_escapes=klass._IDENTIFIER_ESCAPES, 522 string_escapes=klass._STRING_ESCAPES, 523 quotes=klass._QUOTES, 524 format_strings={ 525 k: (v1, _TOKEN_TYPE_TO_INDEX[v2]) 526 for k, (v1, v2) in klass._FORMAT_STRINGS.items() 527 }, 528 has_bit_strings=bool(klass.BIT_STRINGS), 529 has_hex_strings=bool(klass.HEX_STRINGS), 530 comments=klass._COMMENTS, 531 var_single_tokens=klass.VAR_SINGLE_TOKENS, 532 commands={_TOKEN_TYPE_TO_INDEX[v] for v in klass.COMMANDS}, 533 command_prefix_tokens={ 534 _TOKEN_TYPE_TO_INDEX[v] for v in klass.COMMAND_PREFIX_TOKENS 535 }, 536 heredoc_tag_is_identifier=klass.HEREDOC_TAG_IS_IDENTIFIER, 537 string_escapes_allowed_in_raw_strings=klass.STRING_ESCAPES_ALLOWED_IN_RAW_STRINGS, 538 nested_comments=klass.NESTED_COMMENTS, 539 ) 540 token_types = RsTokenTypeSettings( 541 bit_string=_TOKEN_TYPE_TO_INDEX[TokenType.BIT_STRING], 542 break_=_TOKEN_TYPE_TO_INDEX[TokenType.BREAK], 543 dcolon=_TOKEN_TYPE_TO_INDEX[TokenType.DCOLON], 544 heredoc_string=_TOKEN_TYPE_TO_INDEX[TokenType.HEREDOC_STRING], 545 raw_string=_TOKEN_TYPE_TO_INDEX[TokenType.RAW_STRING], 546 hex_string=_TOKEN_TYPE_TO_INDEX[TokenType.HEX_STRING], 547 identifier=_TOKEN_TYPE_TO_INDEX[TokenType.IDENTIFIER], 548 number=_TOKEN_TYPE_TO_INDEX[TokenType.NUMBER], 549 parameter=_TOKEN_TYPE_TO_INDEX[TokenType.PARAMETER], 550 semicolon=_TOKEN_TYPE_TO_INDEX[TokenType.SEMICOLON], 551 string=_TOKEN_TYPE_TO_INDEX[TokenType.STRING], 552 var=_TOKEN_TYPE_TO_INDEX[TokenType.VAR], 553 heredoc_string_alternative=_TOKEN_TYPE_TO_INDEX[klass.HEREDOC_STRING_ALTERNATIVE], 554 ) 555 klass._RS_TOKENIZER = RsTokenizer(settings, token_types) 556 else: 557 klass._RS_TOKENIZER = None 558 559 return klass 560 561 562class Tokenizer(metaclass=_Tokenizer): 563 SINGLE_TOKENS = { 564 "(": TokenType.L_PAREN, 565 ")": TokenType.R_PAREN, 566 "[": TokenType.L_BRACKET, 567 "]": TokenType.R_BRACKET, 568 "{": TokenType.L_BRACE, 569 "}": TokenType.R_BRACE, 570 "&": TokenType.AMP, 571 "^": TokenType.CARET, 572 ":": TokenType.COLON, 573 ",": TokenType.COMMA, 574 ".": TokenType.DOT, 575 "-": TokenType.DASH, 576 "=": TokenType.EQ, 577 ">": TokenType.GT, 578 "<": TokenType.LT, 579 "%": TokenType.MOD, 580 "!": TokenType.NOT, 581 "|": TokenType.PIPE, 582 "+": TokenType.PLUS, 583 ";": TokenType.SEMICOLON, 584 "/": TokenType.SLASH, 585 "\\": TokenType.BACKSLASH, 586 "*": TokenType.STAR, 587 "~": TokenType.TILDA, 588 "?": TokenType.PLACEHOLDER, 589 "@": TokenType.PARAMETER, 590 "#": TokenType.HASH, 591 # Used for breaking a var like x'y' but nothing else the token type doesn't matter 592 "'": TokenType.UNKNOWN, 593 "`": TokenType.UNKNOWN, 594 '"': TokenType.UNKNOWN, 595 } 596 597 BIT_STRINGS: t.List[str | t.Tuple[str, str]] = [] 598 BYTE_STRINGS: t.List[str | t.Tuple[str, str]] = [] 599 HEX_STRINGS: t.List[str | t.Tuple[str, str]] = [] 600 RAW_STRINGS: t.List[str | t.Tuple[str, str]] = [] 601 HEREDOC_STRINGS: t.List[str | t.Tuple[str, str]] = [] 602 UNICODE_STRINGS: t.List[str | t.Tuple[str, str]] = [] 603 IDENTIFIERS: t.List[str | t.Tuple[str, str]] = ['"'] 604 IDENTIFIER_ESCAPES = ['"'] 605 QUOTES: t.List[t.Tuple[str, str] | str] = ["'"] 606 STRING_ESCAPES = ["'"] 607 VAR_SINGLE_TOKENS: t.Set[str] = set() 608 609 # Whether the heredoc tags follow the same lexical rules as unquoted identifiers 610 HEREDOC_TAG_IS_IDENTIFIER = False 611 612 # Token that we'll generate as a fallback if the heredoc prefix doesn't correspond to a heredoc 613 HEREDOC_STRING_ALTERNATIVE = TokenType.VAR 614 615 # Whether string escape characters function as such when placed within raw strings 616 STRING_ESCAPES_ALLOWED_IN_RAW_STRINGS = True 617 618 NESTED_COMMENTS = True 619 620 # Autofilled 621 _COMMENTS: t.Dict[str, str] = {} 622 _FORMAT_STRINGS: t.Dict[str, t.Tuple[str, TokenType]] = {} 623 _IDENTIFIERS: t.Dict[str, str] = {} 624 _IDENTIFIER_ESCAPES: t.Set[str] = set() 625 _QUOTES: t.Dict[str, str] = {} 626 _STRING_ESCAPES: t.Set[str] = set() 627 _KEYWORD_TRIE: t.Dict = {} 628 _RS_TOKENIZER: t.Optional[t.Any] = None 629 630 KEYWORDS: t.Dict[str, TokenType] = { 631 **{f"{{%{postfix}": TokenType.BLOCK_START for postfix in ("", "+", "-")}, 632 **{f"{prefix}%}}": TokenType.BLOCK_END for prefix in ("", "+", "-")}, 633 **{f"{{{{{postfix}": TokenType.BLOCK_START for postfix in ("+", "-")}, 634 **{f"{prefix}}}}}": TokenType.BLOCK_END for prefix in ("+", "-")}, 635 "/*+": TokenType.HINT, 636 "==": TokenType.EQ, 637 "::": TokenType.DCOLON, 638 "||": TokenType.DPIPE, 639 ">=": TokenType.GTE, 640 "<=": TokenType.LTE, 641 "<>": TokenType.NEQ, 642 "!=": TokenType.NEQ, 643 ":=": TokenType.COLON_EQ, 644 "<=>": TokenType.NULLSAFE_EQ, 645 "->": TokenType.ARROW, 646 "->>": TokenType.DARROW, 647 "=>": TokenType.FARROW, 648 "#>": TokenType.HASH_ARROW, 649 "#>>": TokenType.DHASH_ARROW, 650 "<->": TokenType.LR_ARROW, 651 "&&": TokenType.DAMP, 652 "??": TokenType.DQMARK, 653 "~~~": TokenType.GLOB, 654 "~~": TokenType.LIKE, 655 "ALL": TokenType.ALL, 656 "ALWAYS": TokenType.ALWAYS, 657 "AND": TokenType.AND, 658 "ANTI": TokenType.ANTI, 659 "ANY": TokenType.ANY, 660 "ASC": TokenType.ASC, 661 "AS": TokenType.ALIAS, 662 "ASOF": TokenType.ASOF, 663 "AUTOINCREMENT": TokenType.AUTO_INCREMENT, 664 "AUTO_INCREMENT": TokenType.AUTO_INCREMENT, 665 "BEGIN": TokenType.BEGIN, 666 "BETWEEN": TokenType.BETWEEN, 667 "CACHE": TokenType.CACHE, 668 "UNCACHE": TokenType.UNCACHE, 669 "CASE": TokenType.CASE, 670 "CHARACTER SET": TokenType.CHARACTER_SET, 671 "CLUSTER BY": TokenType.CLUSTER_BY, 672 "COLLATE": TokenType.COLLATE, 673 "COLUMN": TokenType.COLUMN, 674 "COMMIT": TokenType.COMMIT, 675 "CONNECT BY": TokenType.CONNECT_BY, 676 "CONSTRAINT": TokenType.CONSTRAINT, 677 "COPY": TokenType.COPY, 678 "CREATE": TokenType.CREATE, 679 "CROSS": TokenType.CROSS, 680 "CUBE": TokenType.CUBE, 681 "CURRENT_DATE": TokenType.CURRENT_DATE, 682 "CURRENT_TIME": TokenType.CURRENT_TIME, 683 "CURRENT_TIMESTAMP": TokenType.CURRENT_TIMESTAMP, 684 "CURRENT_USER": TokenType.CURRENT_USER, 685 "DATABASE": TokenType.DATABASE, 686 "DEFAULT": TokenType.DEFAULT, 687 "DELETE": TokenType.DELETE, 688 "DESC": TokenType.DESC, 689 "DESCRIBE": TokenType.DESCRIBE, 690 "DISTINCT": TokenType.DISTINCT, 691 "DISTRIBUTE BY": TokenType.DISTRIBUTE_BY, 692 "DIV": TokenType.DIV, 693 "DROP": TokenType.DROP, 694 "ELSE": TokenType.ELSE, 695 "END": TokenType.END, 696 "ENUM": TokenType.ENUM, 697 "ESCAPE": TokenType.ESCAPE, 698 "EXCEPT": TokenType.EXCEPT, 699 "EXECUTE": TokenType.EXECUTE, 700 "EXISTS": TokenType.EXISTS, 701 "FALSE": TokenType.FALSE, 702 "FETCH": TokenType.FETCH, 703 "FILTER": TokenType.FILTER, 704 "FIRST": TokenType.FIRST, 705 "FULL": TokenType.FULL, 706 "FUNCTION": TokenType.FUNCTION, 707 "FOR": TokenType.FOR, 708 "FOREIGN KEY": TokenType.FOREIGN_KEY, 709 "FORMAT": TokenType.FORMAT, 710 "FROM": TokenType.FROM, 711 "GEOGRAPHY": TokenType.GEOGRAPHY, 712 "GEOMETRY": TokenType.GEOMETRY, 713 "GLOB": TokenType.GLOB, 714 "GROUP BY": TokenType.GROUP_BY, 715 "GROUPING SETS": TokenType.GROUPING_SETS, 716 "HAVING": TokenType.HAVING, 717 "ILIKE": TokenType.ILIKE, 718 "IN": TokenType.IN, 719 "INDEX": TokenType.INDEX, 720 "INET": TokenType.INET, 721 "INNER": TokenType.INNER, 722 "INSERT": TokenType.INSERT, 723 "INTERVAL": TokenType.INTERVAL, 724 "INTERSECT": TokenType.INTERSECT, 725 "INTO": TokenType.INTO, 726 "IS": TokenType.IS, 727 "ISNULL": TokenType.ISNULL, 728 "JOIN": TokenType.JOIN, 729 "KEEP": TokenType.KEEP, 730 "KILL": TokenType.KILL, 731 "LATERAL": TokenType.LATERAL, 732 "LEFT": TokenType.LEFT, 733 "LIKE": TokenType.LIKE, 734 "LIMIT": TokenType.LIMIT, 735 "LOAD": TokenType.LOAD, 736 "LOCK": TokenType.LOCK, 737 "MERGE": TokenType.MERGE, 738 "NATURAL": TokenType.NATURAL, 739 "NEXT": TokenType.NEXT, 740 "NOT": TokenType.NOT, 741 "NOTNULL": TokenType.NOTNULL, 742 "NULL": TokenType.NULL, 743 "OBJECT": TokenType.OBJECT, 744 "OFFSET": TokenType.OFFSET, 745 "ON": TokenType.ON, 746 "OR": TokenType.OR, 747 "XOR": TokenType.XOR, 748 "ORDER BY": TokenType.ORDER_BY, 749 "ORDINALITY": TokenType.ORDINALITY, 750 "OUTER": TokenType.OUTER, 751 "OVER": TokenType.OVER, 752 "OVERLAPS": TokenType.OVERLAPS, 753 "OVERWRITE": TokenType.OVERWRITE, 754 "PARTITION": TokenType.PARTITION, 755 "PARTITION BY": TokenType.PARTITION_BY, 756 "PARTITIONED BY": TokenType.PARTITION_BY, 757 "PARTITIONED_BY": TokenType.PARTITION_BY, 758 "PERCENT": TokenType.PERCENT, 759 "PIVOT": TokenType.PIVOT, 760 "PRAGMA": TokenType.PRAGMA, 761 "PRIMARY KEY": TokenType.PRIMARY_KEY, 762 "PROCEDURE": TokenType.PROCEDURE, 763 "QUALIFY": TokenType.QUALIFY, 764 "RANGE": TokenType.RANGE, 765 "RECURSIVE": TokenType.RECURSIVE, 766 "REGEXP": TokenType.RLIKE, 767 "RENAME": TokenType.RENAME, 768 "REPLACE": TokenType.REPLACE, 769 "RETURNING": TokenType.RETURNING, 770 "REFERENCES": TokenType.REFERENCES, 771 "RIGHT": TokenType.RIGHT, 772 "RLIKE": TokenType.RLIKE, 773 "ROLLBACK": TokenType.ROLLBACK, 774 "ROLLUP": TokenType.ROLLUP, 775 "ROW": TokenType.ROW, 776 "ROWS": TokenType.ROWS, 777 "SCHEMA": TokenType.SCHEMA, 778 "SELECT": TokenType.SELECT, 779 "SEMI": TokenType.SEMI, 780 "SET": TokenType.SET, 781 "SETTINGS": TokenType.SETTINGS, 782 "SHOW": TokenType.SHOW, 783 "SIMILAR TO": TokenType.SIMILAR_TO, 784 "SOME": TokenType.SOME, 785 "SORT BY": TokenType.SORT_BY, 786 "START WITH": TokenType.START_WITH, 787 "STRAIGHT_JOIN": TokenType.STRAIGHT_JOIN, 788 "TABLE": TokenType.TABLE, 789 "TABLESAMPLE": TokenType.TABLE_SAMPLE, 790 "TEMP": TokenType.TEMPORARY, 791 "TEMPORARY": TokenType.TEMPORARY, 792 "THEN": TokenType.THEN, 793 "TRUE": TokenType.TRUE, 794 "TRUNCATE": TokenType.TRUNCATE, 795 "UNION": TokenType.UNION, 796 "UNKNOWN": TokenType.UNKNOWN, 797 "UNNEST": TokenType.UNNEST, 798 "UNPIVOT": TokenType.UNPIVOT, 799 "UPDATE": TokenType.UPDATE, 800 "USE": TokenType.USE, 801 "USING": TokenType.USING, 802 "UUID": TokenType.UUID, 803 "VALUES": TokenType.VALUES, 804 "VIEW": TokenType.VIEW, 805 "VOLATILE": TokenType.VOLATILE, 806 "WHEN": TokenType.WHEN, 807 "WHERE": TokenType.WHERE, 808 "WINDOW": TokenType.WINDOW, 809 "WITH": TokenType.WITH, 810 "APPLY": TokenType.APPLY, 811 "ARRAY": TokenType.ARRAY, 812 "BIT": TokenType.BIT, 813 "BOOL": TokenType.BOOLEAN, 814 "BOOLEAN": TokenType.BOOLEAN, 815 "BYTE": TokenType.TINYINT, 816 "MEDIUMINT": TokenType.MEDIUMINT, 817 "INT1": TokenType.TINYINT, 818 "TINYINT": TokenType.TINYINT, 819 "INT16": TokenType.SMALLINT, 820 "SHORT": TokenType.SMALLINT, 821 "SMALLINT": TokenType.SMALLINT, 822 "INT128": TokenType.INT128, 823 "HUGEINT": TokenType.INT128, 824 "UHUGEINT": TokenType.UINT128, 825 "INT2": TokenType.SMALLINT, 826 "INTEGER": TokenType.INT, 827 "INT": TokenType.INT, 828 "INT4": TokenType.INT, 829 "INT32": TokenType.INT, 830 "INT64": TokenType.BIGINT, 831 "LONG": TokenType.BIGINT, 832 "BIGINT": TokenType.BIGINT, 833 "INT8": TokenType.TINYINT, 834 "UINT": TokenType.UINT, 835 "DEC": TokenType.DECIMAL, 836 "DECIMAL": TokenType.DECIMAL, 837 "DECIMAL32": TokenType.DECIMAL32, 838 "DECIMAL64": TokenType.DECIMAL64, 839 "DECIMAL128": TokenType.DECIMAL128, 840 "BIGDECIMAL": TokenType.BIGDECIMAL, 841 "BIGNUMERIC": TokenType.BIGDECIMAL, 842 "LIST": TokenType.LIST, 843 "MAP": TokenType.MAP, 844 "NULLABLE": TokenType.NULLABLE, 845 "NUMBER": TokenType.DECIMAL, 846 "NUMERIC": TokenType.DECIMAL, 847 "FIXED": TokenType.DECIMAL, 848 "REAL": TokenType.FLOAT, 849 "FLOAT": TokenType.FLOAT, 850 "FLOAT4": TokenType.FLOAT, 851 "FLOAT8": TokenType.DOUBLE, 852 "DOUBLE": TokenType.DOUBLE, 853 "DOUBLE PRECISION": TokenType.DOUBLE, 854 "JSON": TokenType.JSON, 855 "JSONB": TokenType.JSONB, 856 "CHAR": TokenType.CHAR, 857 "CHARACTER": TokenType.CHAR, 858 "NCHAR": TokenType.NCHAR, 859 "VARCHAR": TokenType.VARCHAR, 860 "VARCHAR2": TokenType.VARCHAR, 861 "NVARCHAR": TokenType.NVARCHAR, 862 "NVARCHAR2": TokenType.NVARCHAR, 863 "BPCHAR": TokenType.BPCHAR, 864 "STR": TokenType.TEXT, 865 "STRING": TokenType.TEXT, 866 "TEXT": TokenType.TEXT, 867 "LONGTEXT": TokenType.LONGTEXT, 868 "MEDIUMTEXT": TokenType.MEDIUMTEXT, 869 "TINYTEXT": TokenType.TINYTEXT, 870 "CLOB": TokenType.TEXT, 871 "LONGVARCHAR": TokenType.TEXT, 872 "BINARY": TokenType.BINARY, 873 "BLOB": TokenType.VARBINARY, 874 "LONGBLOB": TokenType.LONGBLOB, 875 "MEDIUMBLOB": TokenType.MEDIUMBLOB, 876 "TINYBLOB": TokenType.TINYBLOB, 877 "BYTEA": TokenType.VARBINARY, 878 "VARBINARY": TokenType.VARBINARY, 879 "TIME": TokenType.TIME, 880 "TIMETZ": TokenType.TIMETZ, 881 "TIMESTAMP": TokenType.TIMESTAMP, 882 "TIMESTAMPTZ": TokenType.TIMESTAMPTZ, 883 "TIMESTAMPLTZ": TokenType.TIMESTAMPLTZ, 884 "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ, 885 "TIMESTAMPNTZ": TokenType.TIMESTAMPNTZ, 886 "TIMESTAMP_NTZ": TokenType.TIMESTAMPNTZ, 887 "DATE": TokenType.DATE, 888 "DATETIME": TokenType.DATETIME, 889 "INT4RANGE": TokenType.INT4RANGE, 890 "INT4MULTIRANGE": TokenType.INT4MULTIRANGE, 891 "INT8RANGE": TokenType.INT8RANGE, 892 "INT8MULTIRANGE": TokenType.INT8MULTIRANGE, 893 "NUMRANGE": TokenType.NUMRANGE, 894 "NUMMULTIRANGE": TokenType.NUMMULTIRANGE, 895 "TSRANGE": TokenType.TSRANGE, 896 "TSMULTIRANGE": TokenType.TSMULTIRANGE, 897 "TSTZRANGE": TokenType.TSTZRANGE, 898 "TSTZMULTIRANGE": TokenType.TSTZMULTIRANGE, 899 "DATERANGE": TokenType.DATERANGE, 900 "DATEMULTIRANGE": TokenType.DATEMULTIRANGE, 901 "UNIQUE": TokenType.UNIQUE, 902 "VECTOR": TokenType.VECTOR, 903 "STRUCT": TokenType.STRUCT, 904 "SEQUENCE": TokenType.SEQUENCE, 905 "VARIANT": TokenType.VARIANT, 906 "ALTER": TokenType.ALTER, 907 "ANALYZE": TokenType.COMMAND, 908 "CALL": TokenType.COMMAND, 909 "COMMENT": TokenType.COMMENT, 910 "EXPLAIN": TokenType.COMMAND, 911 "GRANT": TokenType.GRANT, 912 "OPTIMIZE": TokenType.COMMAND, 913 "PREPARE": TokenType.COMMAND, 914 "VACUUM": TokenType.COMMAND, 915 "USER-DEFINED": TokenType.USERDEFINED, 916 "FOR VERSION": TokenType.VERSION_SNAPSHOT, 917 "FOR TIMESTAMP": TokenType.TIMESTAMP_SNAPSHOT, 918 } 919 920 WHITE_SPACE: t.Dict[t.Optional[str], TokenType] = { 921 " ": TokenType.SPACE, 922 "\t": TokenType.SPACE, 923 "\n": TokenType.BREAK, 924 "\r": TokenType.BREAK, 925 } 926 927 COMMANDS = { 928 TokenType.COMMAND, 929 TokenType.EXECUTE, 930 TokenType.FETCH, 931 TokenType.SHOW, 932 TokenType.RENAME, 933 } 934 935 COMMAND_PREFIX_TOKENS = {TokenType.SEMICOLON, TokenType.BEGIN} 936 937 # Handle numeric literals like in hive (3L = BIGINT) 938 NUMERIC_LITERALS: t.Dict[str, str] = {} 939 940 COMMENTS = ["--", ("/*", "*/")] 941 942 __slots__ = ( 943 "sql", 944 "size", 945 "tokens", 946 "dialect", 947 "_start", 948 "_current", 949 "_line", 950 "_col", 951 "_comments", 952 "_char", 953 "_end", 954 "_peek", 955 "_prev_token_line", 956 "_rs_dialect_settings", 957 ) 958 959 def __init__(self, dialect: DialectType = None) -> None: 960 from sqlglot.dialects import Dialect 961 962 self.dialect = Dialect.get_or_raise(dialect) 963 964 if USE_RS_TOKENIZER: 965 self._rs_dialect_settings = RsTokenizerDialectSettings( 966 unescaped_sequences=self.dialect.UNESCAPED_SEQUENCES, 967 identifiers_can_start_with_digit=self.dialect.IDENTIFIERS_CAN_START_WITH_DIGIT, 968 ) 969 970 self.reset() 971 972 def reset(self) -> None: 973 self.sql = "" 974 self.size = 0 975 self.tokens: t.List[Token] = [] 976 self._start = 0 977 self._current = 0 978 self._line = 1 979 self._col = 0 980 self._comments: t.List[str] = [] 981 982 self._char = "" 983 self._end = False 984 self._peek = "" 985 self._prev_token_line = -1 986 987 def tokenize(self, sql: str) -> t.List[Token]: 988 """Returns a list of tokens corresponding to the SQL string `sql`.""" 989 if USE_RS_TOKENIZER: 990 return self.tokenize_rs(sql) 991 992 self.reset() 993 self.sql = sql 994 self.size = len(sql) 995 996 try: 997 self._scan() 998 except Exception as e: 999 start = max(self._current - 50, 0) 1000 end = min(self._current + 50, self.size - 1) 1001 context = self.sql[start:end] 1002 raise TokenError(f"Error tokenizing '{context}'") from e 1003 1004 return self.tokens 1005 1006 def _scan(self, until: t.Optional[t.Callable] = None) -> None: 1007 while self.size and not self._end: 1008 current = self._current 1009 1010 # Skip spaces here rather than iteratively calling advance() for performance reasons 1011 while current < self.size: 1012 char = self.sql[current] 1013 1014 if char.isspace() and (char == " " or char == "\t"): 1015 current += 1 1016 else: 1017 break 1018 1019 offset = current - self._current if current > self._current else 1 1020 1021 self._start = current 1022 self._advance(offset) 1023 1024 if not self._char.isspace(): 1025 if self._char.isdigit(): 1026 self._scan_number() 1027 elif self._char in self._IDENTIFIERS: 1028 self._scan_identifier(self._IDENTIFIERS[self._char]) 1029 else: 1030 self._scan_keywords() 1031 1032 if until and until(): 1033 break 1034 1035 if self.tokens and self._comments: 1036 self.tokens[-1].comments.extend(self._comments) 1037 1038 def _chars(self, size: int) -> str: 1039 if size == 1: 1040 return self._char 1041 1042 start = self._current - 1 1043 end = start + size 1044 1045 return self.sql[start:end] if end <= self.size else "" 1046 1047 def _advance(self, i: int = 1, alnum: bool = False) -> None: 1048 if self.WHITE_SPACE.get(self._char) is TokenType.BREAK: 1049 # Ensures we don't count an extra line if we get a \r\n line break sequence 1050 if not (self._char == "\r" and self._peek == "\n"): 1051 self._col = 1 1052 self._line += 1 1053 else: 1054 self._col += i 1055 1056 self._current += i 1057 self._end = self._current >= self.size 1058 self._char = self.sql[self._current - 1] 1059 self._peek = "" if self._end else self.sql[self._current] 1060 1061 if alnum and self._char.isalnum(): 1062 # Here we use local variables instead of attributes for better performance 1063 _col = self._col 1064 _current = self._current 1065 _end = self._end 1066 _peek = self._peek 1067 1068 while _peek.isalnum(): 1069 _col += 1 1070 _current += 1 1071 _end = _current >= self.size 1072 _peek = "" if _end else self.sql[_current] 1073 1074 self._col = _col 1075 self._current = _current 1076 self._end = _end 1077 self._peek = _peek 1078 self._char = self.sql[_current - 1] 1079 1080 @property 1081 def _text(self) -> str: 1082 return self.sql[self._start : self._current] 1083 1084 def _add(self, token_type: TokenType, text: t.Optional[str] = None) -> None: 1085 self._prev_token_line = self._line 1086 1087 if self._comments and token_type == TokenType.SEMICOLON and self.tokens: 1088 self.tokens[-1].comments.extend(self._comments) 1089 self._comments = [] 1090 1091 self.tokens.append( 1092 Token( 1093 token_type, 1094 text=self._text if text is None else text, 1095 line=self._line, 1096 col=self._col, 1097 start=self._start, 1098 end=self._current - 1, 1099 comments=self._comments, 1100 ) 1101 ) 1102 self._comments = [] 1103 1104 # If we have either a semicolon or a begin token before the command's token, we'll parse 1105 # whatever follows the command's token as a string 1106 if ( 1107 token_type in self.COMMANDS 1108 and self._peek != ";" 1109 and (len(self.tokens) == 1 or self.tokens[-2].token_type in self.COMMAND_PREFIX_TOKENS) 1110 ): 1111 start = self._current 1112 tokens = len(self.tokens) 1113 self._scan(lambda: self._peek == ";") 1114 self.tokens = self.tokens[:tokens] 1115 text = self.sql[start : self._current].strip() 1116 if text: 1117 self._add(TokenType.STRING, text) 1118 1119 def _scan_keywords(self) -> None: 1120 size = 0 1121 word = None 1122 chars = self._text 1123 char = chars 1124 prev_space = False 1125 skip = False 1126 trie = self._KEYWORD_TRIE 1127 single_token = char in self.SINGLE_TOKENS 1128 1129 while chars: 1130 if skip: 1131 result = TrieResult.PREFIX 1132 else: 1133 result, trie = in_trie(trie, char.upper()) 1134 1135 if result == TrieResult.FAILED: 1136 break 1137 if result == TrieResult.EXISTS: 1138 word = chars 1139 1140 end = self._current + size 1141 size += 1 1142 1143 if end < self.size: 1144 char = self.sql[end] 1145 single_token = single_token or char in self.SINGLE_TOKENS 1146 is_space = char.isspace() 1147 1148 if not is_space or not prev_space: 1149 if is_space: 1150 char = " " 1151 chars += char 1152 prev_space = is_space 1153 skip = False 1154 else: 1155 skip = True 1156 else: 1157 char = "" 1158 break 1159 1160 if word: 1161 if self._scan_string(word): 1162 return 1163 if self._scan_comment(word): 1164 return 1165 if prev_space or single_token or not char: 1166 self._advance(size - 1) 1167 word = word.upper() 1168 self._add(self.KEYWORDS[word], text=word) 1169 return 1170 1171 if self._char in self.SINGLE_TOKENS: 1172 self._add(self.SINGLE_TOKENS[self._char], text=self._char) 1173 return 1174 1175 self._scan_var() 1176 1177 def _scan_comment(self, comment_start: str) -> bool: 1178 if comment_start not in self._COMMENTS: 1179 return False 1180 1181 comment_start_line = self._line 1182 comment_start_size = len(comment_start) 1183 comment_end = self._COMMENTS[comment_start] 1184 1185 if comment_end: 1186 # Skip the comment's start delimiter 1187 self._advance(comment_start_size) 1188 1189 comment_count = 1 1190 comment_end_size = len(comment_end) 1191 1192 while not self._end: 1193 if self._chars(comment_end_size) == comment_end: 1194 comment_count -= 1 1195 if not comment_count: 1196 break 1197 1198 self._advance(alnum=True) 1199 1200 # Nested comments are allowed by some dialects, e.g. databricks, duckdb, postgres 1201 if ( 1202 self.NESTED_COMMENTS 1203 and not self._end 1204 and self._chars(comment_end_size) == comment_start 1205 ): 1206 self._advance(comment_start_size) 1207 comment_count += 1 1208 1209 self._comments.append(self._text[comment_start_size : -comment_end_size + 1]) 1210 self._advance(comment_end_size - 1) 1211 else: 1212 while not self._end and self.WHITE_SPACE.get(self._peek) is not TokenType.BREAK: 1213 self._advance(alnum=True) 1214 self._comments.append(self._text[comment_start_size:]) 1215 1216 # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding. 1217 # Multiple consecutive comments are preserved by appending them to the current comments list. 1218 if comment_start_line == self._prev_token_line: 1219 self.tokens[-1].comments.extend(self._comments) 1220 self._comments = [] 1221 self._prev_token_line = self._line 1222 1223 return True 1224 1225 def _scan_number(self) -> None: 1226 if self._char == "0": 1227 peek = self._peek.upper() 1228 if peek == "B": 1229 return self._scan_bits() if self.BIT_STRINGS else self._add(TokenType.NUMBER) 1230 elif peek == "X": 1231 return self._scan_hex() if self.HEX_STRINGS else self._add(TokenType.NUMBER) 1232 1233 decimal = False 1234 scientific = 0 1235 1236 while True: 1237 if self._peek.isdigit(): 1238 self._advance() 1239 elif self._peek == "." and not decimal: 1240 if self.tokens and self.tokens[-1].token_type == TokenType.PARAMETER: 1241 return self._add(TokenType.NUMBER) 1242 decimal = True 1243 self._advance() 1244 elif self._peek in ("-", "+") and scientific == 1: 1245 scientific += 1 1246 self._advance() 1247 elif self._peek.upper() == "E" and not scientific: 1248 scientific += 1 1249 self._advance() 1250 elif self._peek.isidentifier(): 1251 number_text = self._text 1252 literal = "" 1253 1254 while self._peek.strip() and self._peek not in self.SINGLE_TOKENS: 1255 literal += self._peek 1256 self._advance() 1257 1258 token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal.upper(), "")) 1259 1260 if token_type: 1261 self._add(TokenType.NUMBER, number_text) 1262 self._add(TokenType.DCOLON, "::") 1263 return self._add(token_type, literal) 1264 elif self.dialect.IDENTIFIERS_CAN_START_WITH_DIGIT: 1265 return self._add(TokenType.VAR) 1266 1267 self._advance(-len(literal)) 1268 return self._add(TokenType.NUMBER, number_text) 1269 else: 1270 return self._add(TokenType.NUMBER) 1271 1272 def _scan_bits(self) -> None: 1273 self._advance() 1274 value = self._extract_value() 1275 try: 1276 # If `value` can't be converted to a binary, fallback to tokenizing it as an identifier 1277 int(value, 2) 1278 self._add(TokenType.BIT_STRING, value[2:]) # Drop the 0b 1279 except ValueError: 1280 self._add(TokenType.IDENTIFIER) 1281 1282 def _scan_hex(self) -> None: 1283 self._advance() 1284 value = self._extract_value() 1285 try: 1286 # If `value` can't be converted to a hex, fallback to tokenizing it as an identifier 1287 int(value, 16) 1288 self._add(TokenType.HEX_STRING, value[2:]) # Drop the 0x 1289 except ValueError: 1290 self._add(TokenType.IDENTIFIER) 1291 1292 def _extract_value(self) -> str: 1293 while True: 1294 char = self._peek.strip() 1295 if char and char not in self.SINGLE_TOKENS: 1296 self._advance(alnum=True) 1297 else: 1298 break 1299 1300 return self._text 1301 1302 def _scan_string(self, start: str) -> bool: 1303 base = None 1304 token_type = TokenType.STRING 1305 1306 if start in self._QUOTES: 1307 end = self._QUOTES[start] 1308 elif start in self._FORMAT_STRINGS: 1309 end, token_type = self._FORMAT_STRINGS[start] 1310 1311 if token_type == TokenType.HEX_STRING: 1312 base = 16 1313 elif token_type == TokenType.BIT_STRING: 1314 base = 2 1315 elif token_type == TokenType.HEREDOC_STRING: 1316 self._advance() 1317 1318 if self._char == end: 1319 tag = "" 1320 else: 1321 tag = self._extract_string( 1322 end, 1323 raw_string=True, 1324 raise_unmatched=not self.HEREDOC_TAG_IS_IDENTIFIER, 1325 ) 1326 1327 if tag and self.HEREDOC_TAG_IS_IDENTIFIER and (self._end or not tag.isidentifier()): 1328 if not self._end: 1329 self._advance(-1) 1330 1331 self._advance(-len(tag)) 1332 self._add(self.HEREDOC_STRING_ALTERNATIVE) 1333 return True 1334 1335 end = f"{start}{tag}{end}" 1336 else: 1337 return False 1338 1339 self._advance(len(start)) 1340 text = self._extract_string(end, raw_string=token_type == TokenType.RAW_STRING) 1341 1342 if base: 1343 try: 1344 int(text, base) 1345 except Exception: 1346 raise TokenError( 1347 f"Numeric string contains invalid characters from {self._line}:{self._start}" 1348 ) 1349 1350 self._add(token_type, text) 1351 return True 1352 1353 def _scan_identifier(self, identifier_end: str) -> None: 1354 self._advance() 1355 text = self._extract_string(identifier_end, escapes=self._IDENTIFIER_ESCAPES) 1356 self._add(TokenType.IDENTIFIER, text) 1357 1358 def _scan_var(self) -> None: 1359 while True: 1360 char = self._peek.strip() 1361 if char and (char in self.VAR_SINGLE_TOKENS or char not in self.SINGLE_TOKENS): 1362 self._advance(alnum=True) 1363 else: 1364 break 1365 1366 self._add( 1367 TokenType.VAR 1368 if self.tokens and self.tokens[-1].token_type == TokenType.PARAMETER 1369 else self.KEYWORDS.get(self._text.upper(), TokenType.VAR) 1370 ) 1371 1372 def _extract_string( 1373 self, 1374 delimiter: str, 1375 escapes: t.Optional[t.Set[str]] = None, 1376 raw_string: bool = False, 1377 raise_unmatched: bool = True, 1378 ) -> str: 1379 text = "" 1380 delim_size = len(delimiter) 1381 escapes = self._STRING_ESCAPES if escapes is None else escapes 1382 1383 while True: 1384 if ( 1385 not raw_string 1386 and self.dialect.UNESCAPED_SEQUENCES 1387 and self._peek 1388 and self._char in self.STRING_ESCAPES 1389 ): 1390 unescaped_sequence = self.dialect.UNESCAPED_SEQUENCES.get(self._char + self._peek) 1391 if unescaped_sequence: 1392 self._advance(2) 1393 text += unescaped_sequence 1394 continue 1395 if ( 1396 (self.STRING_ESCAPES_ALLOWED_IN_RAW_STRINGS or not raw_string) 1397 and self._char in escapes 1398 and (self._peek == delimiter or self._peek in escapes) 1399 and (self._char not in self._QUOTES or self._char == self._peek) 1400 ): 1401 if self._peek == delimiter: 1402 text += self._peek 1403 else: 1404 text += self._char + self._peek 1405 1406 if self._current + 1 < self.size: 1407 self._advance(2) 1408 else: 1409 raise TokenError(f"Missing {delimiter} from {self._line}:{self._current}") 1410 else: 1411 if self._chars(delim_size) == delimiter: 1412 if delim_size > 1: 1413 self._advance(delim_size - 1) 1414 break 1415 1416 if self._end: 1417 if not raise_unmatched: 1418 return text + self._char 1419 1420 raise TokenError(f"Missing {delimiter} from {self._line}:{self._start}") 1421 1422 current = self._current - 1 1423 self._advance(alnum=True) 1424 text += self.sql[current : self._current - 1] 1425 1426 return text 1427 1428 def tokenize_rs(self, sql: str) -> t.List[Token]: 1429 if not self._RS_TOKENIZER: 1430 raise SqlglotError("Rust tokenizer is not available") 1431 1432 try: 1433 tokens = self._RS_TOKENIZER.tokenize(sql, self._rs_dialect_settings) 1434 for token in tokens: 1435 token.token_type = _ALL_TOKEN_TYPES[token.token_type_index] 1436 return tokens 1437 except Exception as e: 1438 raise TokenError(str(e))
29class TokenType(AutoName): 30 L_PAREN = auto() 31 R_PAREN = auto() 32 L_BRACKET = auto() 33 R_BRACKET = auto() 34 L_BRACE = auto() 35 R_BRACE = auto() 36 COMMA = auto() 37 DOT = auto() 38 DASH = auto() 39 PLUS = auto() 40 COLON = auto() 41 DCOLON = auto() 42 DQMARK = auto() 43 SEMICOLON = auto() 44 STAR = auto() 45 BACKSLASH = auto() 46 SLASH = auto() 47 LT = auto() 48 LTE = auto() 49 GT = auto() 50 GTE = auto() 51 NOT = auto() 52 EQ = auto() 53 NEQ = auto() 54 NULLSAFE_EQ = auto() 55 COLON_EQ = auto() 56 AND = auto() 57 OR = auto() 58 AMP = auto() 59 DPIPE = auto() 60 PIPE = auto() 61 PIPE_SLASH = auto() 62 DPIPE_SLASH = auto() 63 CARET = auto() 64 TILDA = auto() 65 ARROW = auto() 66 DARROW = auto() 67 FARROW = auto() 68 HASH = auto() 69 HASH_ARROW = auto() 70 DHASH_ARROW = auto() 71 LR_ARROW = auto() 72 DAT = auto() 73 LT_AT = auto() 74 AT_GT = auto() 75 DOLLAR = auto() 76 PARAMETER = auto() 77 SESSION_PARAMETER = auto() 78 DAMP = auto() 79 XOR = auto() 80 DSTAR = auto() 81 82 BLOCK_START = auto() 83 BLOCK_END = auto() 84 85 SPACE = auto() 86 BREAK = auto() 87 88 STRING = auto() 89 NUMBER = auto() 90 IDENTIFIER = auto() 91 DATABASE = auto() 92 COLUMN = auto() 93 COLUMN_DEF = auto() 94 SCHEMA = auto() 95 TABLE = auto() 96 WAREHOUSE = auto() 97 STREAMLIT = auto() 98 VAR = auto() 99 BIT_STRING = auto() 100 HEX_STRING = auto() 101 BYTE_STRING = auto() 102 NATIONAL_STRING = auto() 103 RAW_STRING = auto() 104 HEREDOC_STRING = auto() 105 UNICODE_STRING = auto() 106 107 # types 108 BIT = auto() 109 BOOLEAN = auto() 110 TINYINT = auto() 111 UTINYINT = auto() 112 SMALLINT = auto() 113 USMALLINT = auto() 114 MEDIUMINT = auto() 115 UMEDIUMINT = auto() 116 INT = auto() 117 UINT = auto() 118 BIGINT = auto() 119 UBIGINT = auto() 120 INT128 = auto() 121 UINT128 = auto() 122 INT256 = auto() 123 UINT256 = auto() 124 FLOAT = auto() 125 DOUBLE = auto() 126 DECIMAL = auto() 127 DECIMAL32 = auto() 128 DECIMAL64 = auto() 129 DECIMAL128 = auto() 130 UDECIMAL = auto() 131 BIGDECIMAL = auto() 132 CHAR = auto() 133 NCHAR = auto() 134 VARCHAR = auto() 135 NVARCHAR = auto() 136 BPCHAR = auto() 137 TEXT = auto() 138 MEDIUMTEXT = auto() 139 LONGTEXT = auto() 140 MEDIUMBLOB = auto() 141 LONGBLOB = auto() 142 TINYBLOB = auto() 143 TINYTEXT = auto() 144 NAME = auto() 145 BINARY = auto() 146 VARBINARY = auto() 147 JSON = auto() 148 JSONB = auto() 149 TIME = auto() 150 TIMETZ = auto() 151 TIMESTAMP = auto() 152 TIMESTAMPTZ = auto() 153 TIMESTAMPLTZ = auto() 154 TIMESTAMPNTZ = auto() 155 TIMESTAMP_S = auto() 156 TIMESTAMP_MS = auto() 157 TIMESTAMP_NS = auto() 158 DATETIME = auto() 159 DATETIME64 = auto() 160 DATE = auto() 161 DATE32 = auto() 162 INT4RANGE = auto() 163 INT4MULTIRANGE = auto() 164 INT8RANGE = auto() 165 INT8MULTIRANGE = auto() 166 NUMRANGE = auto() 167 NUMMULTIRANGE = auto() 168 TSRANGE = auto() 169 TSMULTIRANGE = auto() 170 TSTZRANGE = auto() 171 TSTZMULTIRANGE = auto() 172 DATERANGE = auto() 173 DATEMULTIRANGE = auto() 174 UUID = auto() 175 GEOGRAPHY = auto() 176 NULLABLE = auto() 177 GEOMETRY = auto() 178 HLLSKETCH = auto() 179 HSTORE = auto() 180 SUPER = auto() 181 SERIAL = auto() 182 SMALLSERIAL = auto() 183 BIGSERIAL = auto() 184 XML = auto() 185 YEAR = auto() 186 UNIQUEIDENTIFIER = auto() 187 USERDEFINED = auto() 188 MONEY = auto() 189 SMALLMONEY = auto() 190 ROWVERSION = auto() 191 IMAGE = auto() 192 VARIANT = auto() 193 OBJECT = auto() 194 INET = auto() 195 IPADDRESS = auto() 196 IPPREFIX = auto() 197 IPV4 = auto() 198 IPV6 = auto() 199 ENUM = auto() 200 ENUM8 = auto() 201 ENUM16 = auto() 202 FIXEDSTRING = auto() 203 LOWCARDINALITY = auto() 204 NESTED = auto() 205 AGGREGATEFUNCTION = auto() 206 SIMPLEAGGREGATEFUNCTION = auto() 207 TDIGEST = auto() 208 UNKNOWN = auto() 209 VECTOR = auto() 210 211 # keywords 212 ALIAS = auto() 213 ALTER = auto() 214 ALWAYS = auto() 215 ALL = auto() 216 ANTI = auto() 217 ANY = auto() 218 APPLY = auto() 219 ARRAY = auto() 220 ASC = auto() 221 ASOF = auto() 222 AUTO_INCREMENT = auto() 223 BEGIN = auto() 224 BETWEEN = auto() 225 BULK_COLLECT_INTO = auto() 226 CACHE = auto() 227 CASE = auto() 228 CHARACTER_SET = auto() 229 CLUSTER_BY = auto() 230 COLLATE = auto() 231 COMMAND = auto() 232 COMMENT = auto() 233 COMMIT = auto() 234 CONNECT_BY = auto() 235 CONSTRAINT = auto() 236 COPY = auto() 237 CREATE = auto() 238 CROSS = auto() 239 CUBE = auto() 240 CURRENT_DATE = auto() 241 CURRENT_DATETIME = auto() 242 CURRENT_TIME = auto() 243 CURRENT_TIMESTAMP = auto() 244 CURRENT_USER = auto() 245 DECLARE = auto() 246 DEFAULT = auto() 247 DELETE = auto() 248 DESC = auto() 249 DESCRIBE = auto() 250 DICTIONARY = auto() 251 DISTINCT = auto() 252 DISTRIBUTE_BY = auto() 253 DIV = auto() 254 DROP = auto() 255 ELSE = auto() 256 END = auto() 257 ESCAPE = auto() 258 EXCEPT = auto() 259 EXECUTE = auto() 260 EXISTS = auto() 261 FALSE = auto() 262 FETCH = auto() 263 FILTER = auto() 264 FINAL = auto() 265 FIRST = auto() 266 FOR = auto() 267 FORCE = auto() 268 FOREIGN_KEY = auto() 269 FORMAT = auto() 270 FROM = auto() 271 FULL = auto() 272 FUNCTION = auto() 273 GLOB = auto() 274 GLOBAL = auto() 275 GRANT = auto() 276 GROUP_BY = auto() 277 GROUPING_SETS = auto() 278 HAVING = auto() 279 HINT = auto() 280 IGNORE = auto() 281 ILIKE = auto() 282 ILIKE_ANY = auto() 283 IN = auto() 284 INDEX = auto() 285 INNER = auto() 286 INSERT = auto() 287 INTERSECT = auto() 288 INTERVAL = auto() 289 INTO = auto() 290 INTRODUCER = auto() 291 IRLIKE = auto() 292 IS = auto() 293 ISNULL = auto() 294 JOIN = auto() 295 JOIN_MARKER = auto() 296 KEEP = auto() 297 KEY = auto() 298 KILL = auto() 299 LANGUAGE = auto() 300 LATERAL = auto() 301 LEFT = auto() 302 LIKE = auto() 303 LIKE_ANY = auto() 304 LIMIT = auto() 305 LIST = auto() 306 LOAD = auto() 307 LOCK = auto() 308 MAP = auto() 309 MATCH_CONDITION = auto() 310 MATCH_RECOGNIZE = auto() 311 MEMBER_OF = auto() 312 MERGE = auto() 313 MOD = auto() 314 MODEL = auto() 315 NATURAL = auto() 316 NEXT = auto() 317 NOTNULL = auto() 318 NULL = auto() 319 OBJECT_IDENTIFIER = auto() 320 OFFSET = auto() 321 ON = auto() 322 ONLY = auto() 323 OPERATOR = auto() 324 ORDER_BY = auto() 325 ORDER_SIBLINGS_BY = auto() 326 ORDERED = auto() 327 ORDINALITY = auto() 328 OUTER = auto() 329 OVER = auto() 330 OVERLAPS = auto() 331 OVERWRITE = auto() 332 PARTITION = auto() 333 PARTITION_BY = auto() 334 PERCENT = auto() 335 PIVOT = auto() 336 PLACEHOLDER = auto() 337 POSITIONAL = auto() 338 PRAGMA = auto() 339 PREWHERE = auto() 340 PRIMARY_KEY = auto() 341 PROCEDURE = auto() 342 PROPERTIES = auto() 343 PSEUDO_TYPE = auto() 344 QUALIFY = auto() 345 QUOTE = auto() 346 RANGE = auto() 347 RECURSIVE = auto() 348 REFRESH = auto() 349 RENAME = auto() 350 REPLACE = auto() 351 RETURNING = auto() 352 REFERENCES = auto() 353 RIGHT = auto() 354 RLIKE = auto() 355 ROLLBACK = auto() 356 ROLLUP = auto() 357 ROW = auto() 358 ROWS = auto() 359 SELECT = auto() 360 SEMI = auto() 361 SEPARATOR = auto() 362 SEQUENCE = auto() 363 SERDE_PROPERTIES = auto() 364 SET = auto() 365 SETTINGS = auto() 366 SHOW = auto() 367 SIMILAR_TO = auto() 368 SOME = auto() 369 SORT_BY = auto() 370 START_WITH = auto() 371 STORAGE_INTEGRATION = auto() 372 STRAIGHT_JOIN = auto() 373 STRUCT = auto() 374 SUMMARIZE = auto() 375 TABLE_SAMPLE = auto() 376 TAG = auto() 377 TEMPORARY = auto() 378 TOP = auto() 379 THEN = auto() 380 TRUE = auto() 381 TRUNCATE = auto() 382 UNCACHE = auto() 383 UNION = auto() 384 UNNEST = auto() 385 UNPIVOT = auto() 386 UPDATE = auto() 387 USE = auto() 388 USING = auto() 389 VALUES = auto() 390 VIEW = auto() 391 VOLATILE = auto() 392 WHEN = auto() 393 WHERE = auto() 394 WINDOW = auto() 395 WITH = auto() 396 UNIQUE = auto() 397 VERSION_SNAPSHOT = auto() 398 TIMESTAMP_SNAPSHOT = auto() 399 OPTION = auto()
An enumeration.
L_PAREN =
<TokenType.L_PAREN: 'L_PAREN'>
R_PAREN =
<TokenType.R_PAREN: 'R_PAREN'>
L_BRACKET =
<TokenType.L_BRACKET: 'L_BRACKET'>
R_BRACKET =
<TokenType.R_BRACKET: 'R_BRACKET'>
L_BRACE =
<TokenType.L_BRACE: 'L_BRACE'>
R_BRACE =
<TokenType.R_BRACE: 'R_BRACE'>
COMMA =
<TokenType.COMMA: 'COMMA'>
DOT =
<TokenType.DOT: 'DOT'>
DASH =
<TokenType.DASH: 'DASH'>
PLUS =
<TokenType.PLUS: 'PLUS'>
COLON =
<TokenType.COLON: 'COLON'>
DCOLON =
<TokenType.DCOLON: 'DCOLON'>
DQMARK =
<TokenType.DQMARK: 'DQMARK'>
SEMICOLON =
<TokenType.SEMICOLON: 'SEMICOLON'>
STAR =
<TokenType.STAR: 'STAR'>
BACKSLASH =
<TokenType.BACKSLASH: 'BACKSLASH'>
SLASH =
<TokenType.SLASH: 'SLASH'>
LT =
<TokenType.LT: 'LT'>
LTE =
<TokenType.LTE: 'LTE'>
GT =
<TokenType.GT: 'GT'>
GTE =
<TokenType.GTE: 'GTE'>
NOT =
<TokenType.NOT: 'NOT'>
EQ =
<TokenType.EQ: 'EQ'>
NEQ =
<TokenType.NEQ: 'NEQ'>
NULLSAFE_EQ =
<TokenType.NULLSAFE_EQ: 'NULLSAFE_EQ'>
COLON_EQ =
<TokenType.COLON_EQ: 'COLON_EQ'>
AND =
<TokenType.AND: 'AND'>
OR =
<TokenType.OR: 'OR'>
AMP =
<TokenType.AMP: 'AMP'>
DPIPE =
<TokenType.DPIPE: 'DPIPE'>
PIPE =
<TokenType.PIPE: 'PIPE'>
PIPE_SLASH =
<TokenType.PIPE_SLASH: 'PIPE_SLASH'>
DPIPE_SLASH =
<TokenType.DPIPE_SLASH: 'DPIPE_SLASH'>
CARET =
<TokenType.CARET: 'CARET'>
TILDA =
<TokenType.TILDA: 'TILDA'>
ARROW =
<TokenType.ARROW: 'ARROW'>
DARROW =
<TokenType.DARROW: 'DARROW'>
FARROW =
<TokenType.FARROW: 'FARROW'>
HASH =
<TokenType.HASH: 'HASH'>
HASH_ARROW =
<TokenType.HASH_ARROW: 'HASH_ARROW'>
DHASH_ARROW =
<TokenType.DHASH_ARROW: 'DHASH_ARROW'>
LR_ARROW =
<TokenType.LR_ARROW: 'LR_ARROW'>
DAT =
<TokenType.DAT: 'DAT'>
LT_AT =
<TokenType.LT_AT: 'LT_AT'>
AT_GT =
<TokenType.AT_GT: 'AT_GT'>
DOLLAR =
<TokenType.DOLLAR: 'DOLLAR'>
PARAMETER =
<TokenType.PARAMETER: 'PARAMETER'>
SESSION_PARAMETER =
<TokenType.SESSION_PARAMETER: 'SESSION_PARAMETER'>
DAMP =
<TokenType.DAMP: 'DAMP'>
XOR =
<TokenType.XOR: 'XOR'>
DSTAR =
<TokenType.DSTAR: 'DSTAR'>
BLOCK_START =
<TokenType.BLOCK_START: 'BLOCK_START'>
BLOCK_END =
<TokenType.BLOCK_END: 'BLOCK_END'>
SPACE =
<TokenType.SPACE: 'SPACE'>
BREAK =
<TokenType.BREAK: 'BREAK'>
STRING =
<TokenType.STRING: 'STRING'>
NUMBER =
<TokenType.NUMBER: 'NUMBER'>
IDENTIFIER =
<TokenType.IDENTIFIER: 'IDENTIFIER'>
DATABASE =
<TokenType.DATABASE: 'DATABASE'>
COLUMN =
<TokenType.COLUMN: 'COLUMN'>
COLUMN_DEF =
<TokenType.COLUMN_DEF: 'COLUMN_DEF'>
SCHEMA =
<TokenType.SCHEMA: 'SCHEMA'>
TABLE =
<TokenType.TABLE: 'TABLE'>
WAREHOUSE =
<TokenType.WAREHOUSE: 'WAREHOUSE'>
STREAMLIT =
<TokenType.STREAMLIT: 'STREAMLIT'>
VAR =
<TokenType.VAR: 'VAR'>
BIT_STRING =
<TokenType.BIT_STRING: 'BIT_STRING'>
HEX_STRING =
<TokenType.HEX_STRING: 'HEX_STRING'>
BYTE_STRING =
<TokenType.BYTE_STRING: 'BYTE_STRING'>
NATIONAL_STRING =
<TokenType.NATIONAL_STRING: 'NATIONAL_STRING'>
RAW_STRING =
<TokenType.RAW_STRING: 'RAW_STRING'>
HEREDOC_STRING =
<TokenType.HEREDOC_STRING: 'HEREDOC_STRING'>
UNICODE_STRING =
<TokenType.UNICODE_STRING: 'UNICODE_STRING'>
BIT =
<TokenType.BIT: 'BIT'>
BOOLEAN =
<TokenType.BOOLEAN: 'BOOLEAN'>
TINYINT =
<TokenType.TINYINT: 'TINYINT'>
UTINYINT =
<TokenType.UTINYINT: 'UTINYINT'>
SMALLINT =
<TokenType.SMALLINT: 'SMALLINT'>
USMALLINT =
<TokenType.USMALLINT: 'USMALLINT'>
MEDIUMINT =
<TokenType.MEDIUMINT: 'MEDIUMINT'>
UMEDIUMINT =
<TokenType.UMEDIUMINT: 'UMEDIUMINT'>
INT =
<TokenType.INT: 'INT'>
UINT =
<TokenType.UINT: 'UINT'>
BIGINT =
<TokenType.BIGINT: 'BIGINT'>
UBIGINT =
<TokenType.UBIGINT: 'UBIGINT'>
INT128 =
<TokenType.INT128: 'INT128'>
UINT128 =
<TokenType.UINT128: 'UINT128'>
INT256 =
<TokenType.INT256: 'INT256'>
UINT256 =
<TokenType.UINT256: 'UINT256'>
FLOAT =
<TokenType.FLOAT: 'FLOAT'>
DOUBLE =
<TokenType.DOUBLE: 'DOUBLE'>
DECIMAL =
<TokenType.DECIMAL: 'DECIMAL'>
DECIMAL32 =
<TokenType.DECIMAL32: 'DECIMAL32'>
DECIMAL64 =
<TokenType.DECIMAL64: 'DECIMAL64'>
DECIMAL128 =
<TokenType.DECIMAL128: 'DECIMAL128'>
UDECIMAL =
<TokenType.UDECIMAL: 'UDECIMAL'>
BIGDECIMAL =
<TokenType.BIGDECIMAL: 'BIGDECIMAL'>
CHAR =
<TokenType.CHAR: 'CHAR'>
NCHAR =
<TokenType.NCHAR: 'NCHAR'>
VARCHAR =
<TokenType.VARCHAR: 'VARCHAR'>
NVARCHAR =
<TokenType.NVARCHAR: 'NVARCHAR'>
BPCHAR =
<TokenType.BPCHAR: 'BPCHAR'>
TEXT =
<TokenType.TEXT: 'TEXT'>
MEDIUMTEXT =
<TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>
LONGTEXT =
<TokenType.LONGTEXT: 'LONGTEXT'>
MEDIUMBLOB =
<TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>
LONGBLOB =
<TokenType.LONGBLOB: 'LONGBLOB'>
TINYBLOB =
<TokenType.TINYBLOB: 'TINYBLOB'>
TINYTEXT =
<TokenType.TINYTEXT: 'TINYTEXT'>
NAME =
<TokenType.NAME: 'NAME'>
BINARY =
<TokenType.BINARY: 'BINARY'>
VARBINARY =
<TokenType.VARBINARY: 'VARBINARY'>
JSON =
<TokenType.JSON: 'JSON'>
JSONB =
<TokenType.JSONB: 'JSONB'>
TIME =
<TokenType.TIME: 'TIME'>
TIMETZ =
<TokenType.TIMETZ: 'TIMETZ'>
TIMESTAMP =
<TokenType.TIMESTAMP: 'TIMESTAMP'>
TIMESTAMPTZ =
<TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>
TIMESTAMPLTZ =
<TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>
TIMESTAMPNTZ =
<TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>
TIMESTAMP_S =
<TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>
TIMESTAMP_MS =
<TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>
TIMESTAMP_NS =
<TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>
DATETIME =
<TokenType.DATETIME: 'DATETIME'>
DATETIME64 =
<TokenType.DATETIME64: 'DATETIME64'>
DATE =
<TokenType.DATE: 'DATE'>
DATE32 =
<TokenType.DATE32: 'DATE32'>
INT4RANGE =
<TokenType.INT4RANGE: 'INT4RANGE'>
INT4MULTIRANGE =
<TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>
INT8RANGE =
<TokenType.INT8RANGE: 'INT8RANGE'>
INT8MULTIRANGE =
<TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>
NUMRANGE =
<TokenType.NUMRANGE: 'NUMRANGE'>
NUMMULTIRANGE =
<TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>
TSRANGE =
<TokenType.TSRANGE: 'TSRANGE'>
TSMULTIRANGE =
<TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>
TSTZRANGE =
<TokenType.TSTZRANGE: 'TSTZRANGE'>
TSTZMULTIRANGE =
<TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>
DATERANGE =
<TokenType.DATERANGE: 'DATERANGE'>
DATEMULTIRANGE =
<TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>
UUID =
<TokenType.UUID: 'UUID'>
GEOGRAPHY =
<TokenType.GEOGRAPHY: 'GEOGRAPHY'>
NULLABLE =
<TokenType.NULLABLE: 'NULLABLE'>
GEOMETRY =
<TokenType.GEOMETRY: 'GEOMETRY'>
HLLSKETCH =
<TokenType.HLLSKETCH: 'HLLSKETCH'>
HSTORE =
<TokenType.HSTORE: 'HSTORE'>
SUPER =
<TokenType.SUPER: 'SUPER'>
SERIAL =
<TokenType.SERIAL: 'SERIAL'>
SMALLSERIAL =
<TokenType.SMALLSERIAL: 'SMALLSERIAL'>
BIGSERIAL =
<TokenType.BIGSERIAL: 'BIGSERIAL'>
XML =
<TokenType.XML: 'XML'>
YEAR =
<TokenType.YEAR: 'YEAR'>
UNIQUEIDENTIFIER =
<TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>
USERDEFINED =
<TokenType.USERDEFINED: 'USERDEFINED'>
MONEY =
<TokenType.MONEY: 'MONEY'>
SMALLMONEY =
<TokenType.SMALLMONEY: 'SMALLMONEY'>
ROWVERSION =
<TokenType.ROWVERSION: 'ROWVERSION'>
IMAGE =
<TokenType.IMAGE: 'IMAGE'>
VARIANT =
<TokenType.VARIANT: 'VARIANT'>
OBJECT =
<TokenType.OBJECT: 'OBJECT'>
INET =
<TokenType.INET: 'INET'>
IPADDRESS =
<TokenType.IPADDRESS: 'IPADDRESS'>
IPPREFIX =
<TokenType.IPPREFIX: 'IPPREFIX'>
IPV4 =
<TokenType.IPV4: 'IPV4'>
IPV6 =
<TokenType.IPV6: 'IPV6'>
ENUM =
<TokenType.ENUM: 'ENUM'>
ENUM8 =
<TokenType.ENUM8: 'ENUM8'>
ENUM16 =
<TokenType.ENUM16: 'ENUM16'>
FIXEDSTRING =
<TokenType.FIXEDSTRING: 'FIXEDSTRING'>
LOWCARDINALITY =
<TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>
NESTED =
<TokenType.NESTED: 'NESTED'>
AGGREGATEFUNCTION =
<TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>
SIMPLEAGGREGATEFUNCTION =
<TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>
TDIGEST =
<TokenType.TDIGEST: 'TDIGEST'>
UNKNOWN =
<TokenType.UNKNOWN: 'UNKNOWN'>
VECTOR =
<TokenType.VECTOR: 'VECTOR'>
ALIAS =
<TokenType.ALIAS: 'ALIAS'>
ALTER =
<TokenType.ALTER: 'ALTER'>
ALWAYS =
<TokenType.ALWAYS: 'ALWAYS'>
ALL =
<TokenType.ALL: 'ALL'>
ANTI =
<TokenType.ANTI: 'ANTI'>
ANY =
<TokenType.ANY: 'ANY'>
APPLY =
<TokenType.APPLY: 'APPLY'>
ARRAY =
<TokenType.ARRAY: 'ARRAY'>
ASC =
<TokenType.ASC: 'ASC'>
ASOF =
<TokenType.ASOF: 'ASOF'>
AUTO_INCREMENT =
<TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>
BEGIN =
<TokenType.BEGIN: 'BEGIN'>
BETWEEN =
<TokenType.BETWEEN: 'BETWEEN'>
BULK_COLLECT_INTO =
<TokenType.BULK_COLLECT_INTO: 'BULK_COLLECT_INTO'>
CACHE =
<TokenType.CACHE: 'CACHE'>
CASE =
<TokenType.CASE: 'CASE'>
CHARACTER_SET =
<TokenType.CHARACTER_SET: 'CHARACTER_SET'>
CLUSTER_BY =
<TokenType.CLUSTER_BY: 'CLUSTER_BY'>
COLLATE =
<TokenType.COLLATE: 'COLLATE'>
COMMAND =
<TokenType.COMMAND: 'COMMAND'>
COMMENT =
<TokenType.COMMENT: 'COMMENT'>
COMMIT =
<TokenType.COMMIT: 'COMMIT'>
CONNECT_BY =
<TokenType.CONNECT_BY: 'CONNECT_BY'>
CONSTRAINT =
<TokenType.CONSTRAINT: 'CONSTRAINT'>
COPY =
<TokenType.COPY: 'COPY'>
CREATE =
<TokenType.CREATE: 'CREATE'>
CROSS =
<TokenType.CROSS: 'CROSS'>
CUBE =
<TokenType.CUBE: 'CUBE'>
CURRENT_DATE =
<TokenType.CURRENT_DATE: 'CURRENT_DATE'>
CURRENT_DATETIME =
<TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>
CURRENT_TIME =
<TokenType.CURRENT_TIME: 'CURRENT_TIME'>
CURRENT_TIMESTAMP =
<TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>
CURRENT_USER =
<TokenType.CURRENT_USER: 'CURRENT_USER'>
DECLARE =
<TokenType.DECLARE: 'DECLARE'>
DEFAULT =
<TokenType.DEFAULT: 'DEFAULT'>
DELETE =
<TokenType.DELETE: 'DELETE'>
DESC =
<TokenType.DESC: 'DESC'>
DESCRIBE =
<TokenType.DESCRIBE: 'DESCRIBE'>
DICTIONARY =
<TokenType.DICTIONARY: 'DICTIONARY'>
DISTINCT =
<TokenType.DISTINCT: 'DISTINCT'>
DISTRIBUTE_BY =
<TokenType.DISTRIBUTE_BY: 'DISTRIBUTE_BY'>
DIV =
<TokenType.DIV: 'DIV'>
DROP =
<TokenType.DROP: 'DROP'>
ELSE =
<TokenType.ELSE: 'ELSE'>
END =
<TokenType.END: 'END'>
ESCAPE =
<TokenType.ESCAPE: 'ESCAPE'>
EXCEPT =
<TokenType.EXCEPT: 'EXCEPT'>
EXECUTE =
<TokenType.EXECUTE: 'EXECUTE'>
EXISTS =
<TokenType.EXISTS: 'EXISTS'>
FALSE =
<TokenType.FALSE: 'FALSE'>
FETCH =
<TokenType.FETCH: 'FETCH'>
FILTER =
<TokenType.FILTER: 'FILTER'>
FINAL =
<TokenType.FINAL: 'FINAL'>
FIRST =
<TokenType.FIRST: 'FIRST'>
FOR =
<TokenType.FOR: 'FOR'>
FORCE =
<TokenType.FORCE: 'FORCE'>
FOREIGN_KEY =
<TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>
FORMAT =
<TokenType.FORMAT: 'FORMAT'>
FROM =
<TokenType.FROM: 'FROM'>
FULL =
<TokenType.FULL: 'FULL'>
FUNCTION =
<TokenType.FUNCTION: 'FUNCTION'>
GLOB =
<TokenType.GLOB: 'GLOB'>
GLOBAL =
<TokenType.GLOBAL: 'GLOBAL'>
GRANT =
<TokenType.GRANT: 'GRANT'>
GROUP_BY =
<TokenType.GROUP_BY: 'GROUP_BY'>
GROUPING_SETS =
<TokenType.GROUPING_SETS: 'GROUPING_SETS'>
HAVING =
<TokenType.HAVING: 'HAVING'>
HINT =
<TokenType.HINT: 'HINT'>
IGNORE =
<TokenType.IGNORE: 'IGNORE'>
ILIKE =
<TokenType.ILIKE: 'ILIKE'>
ILIKE_ANY =
<TokenType.ILIKE_ANY: 'ILIKE_ANY'>
IN =
<TokenType.IN: 'IN'>
INDEX =
<TokenType.INDEX: 'INDEX'>
INNER =
<TokenType.INNER: 'INNER'>
INSERT =
<TokenType.INSERT: 'INSERT'>
INTERSECT =
<TokenType.INTERSECT: 'INTERSECT'>
INTERVAL =
<TokenType.INTERVAL: 'INTERVAL'>
INTO =
<TokenType.INTO: 'INTO'>
INTRODUCER =
<TokenType.INTRODUCER: 'INTRODUCER'>
IRLIKE =
<TokenType.IRLIKE: 'IRLIKE'>
IS =
<TokenType.IS: 'IS'>
ISNULL =
<TokenType.ISNULL: 'ISNULL'>
JOIN =
<TokenType.JOIN: 'JOIN'>
JOIN_MARKER =
<TokenType.JOIN_MARKER: 'JOIN_MARKER'>
KEEP =
<TokenType.KEEP: 'KEEP'>
KEY =
<TokenType.KEY: 'KEY'>
KILL =
<TokenType.KILL: 'KILL'>
LANGUAGE =
<TokenType.LANGUAGE: 'LANGUAGE'>
LATERAL =
<TokenType.LATERAL: 'LATERAL'>
LEFT =
<TokenType.LEFT: 'LEFT'>
LIKE =
<TokenType.LIKE: 'LIKE'>
LIKE_ANY =
<TokenType.LIKE_ANY: 'LIKE_ANY'>
LIMIT =
<TokenType.LIMIT: 'LIMIT'>
LIST =
<TokenType.LIST: 'LIST'>
LOAD =
<TokenType.LOAD: 'LOAD'>
LOCK =
<TokenType.LOCK: 'LOCK'>
MAP =
<TokenType.MAP: 'MAP'>
MATCH_CONDITION =
<TokenType.MATCH_CONDITION: 'MATCH_CONDITION'>
MATCH_RECOGNIZE =
<TokenType.MATCH_RECOGNIZE: 'MATCH_RECOGNIZE'>
MEMBER_OF =
<TokenType.MEMBER_OF: 'MEMBER_OF'>
MERGE =
<TokenType.MERGE: 'MERGE'>
MOD =
<TokenType.MOD: 'MOD'>
MODEL =
<TokenType.MODEL: 'MODEL'>
NATURAL =
<TokenType.NATURAL: 'NATURAL'>
NEXT =
<TokenType.NEXT: 'NEXT'>
NOTNULL =
<TokenType.NOTNULL: 'NOTNULL'>
NULL =
<TokenType.NULL: 'NULL'>
OBJECT_IDENTIFIER =
<TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>
OFFSET =
<TokenType.OFFSET: 'OFFSET'>
ON =
<TokenType.ON: 'ON'>
ONLY =
<TokenType.ONLY: 'ONLY'>
OPERATOR =
<TokenType.OPERATOR: 'OPERATOR'>
ORDER_BY =
<TokenType.ORDER_BY: 'ORDER_BY'>
ORDER_SIBLINGS_BY =
<TokenType.ORDER_SIBLINGS_BY: 'ORDER_SIBLINGS_BY'>
ORDERED =
<TokenType.ORDERED: 'ORDERED'>
ORDINALITY =
<TokenType.ORDINALITY: 'ORDINALITY'>
OUTER =
<TokenType.OUTER: 'OUTER'>
OVER =
<TokenType.OVER: 'OVER'>
OVERLAPS =
<TokenType.OVERLAPS: 'OVERLAPS'>
OVERWRITE =
<TokenType.OVERWRITE: 'OVERWRITE'>
PARTITION =
<TokenType.PARTITION: 'PARTITION'>
PARTITION_BY =
<TokenType.PARTITION_BY: 'PARTITION_BY'>
PERCENT =
<TokenType.PERCENT: 'PERCENT'>
PIVOT =
<TokenType.PIVOT: 'PIVOT'>
PLACEHOLDER =
<TokenType.PLACEHOLDER: 'PLACEHOLDER'>
POSITIONAL =
<TokenType.POSITIONAL: 'POSITIONAL'>
PRAGMA =
<TokenType.PRAGMA: 'PRAGMA'>
PREWHERE =
<TokenType.PREWHERE: 'PREWHERE'>
PRIMARY_KEY =
<TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>
PROCEDURE =
<TokenType.PROCEDURE: 'PROCEDURE'>
PROPERTIES =
<TokenType.PROPERTIES: 'PROPERTIES'>
PSEUDO_TYPE =
<TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>
QUALIFY =
<TokenType.QUALIFY: 'QUALIFY'>
QUOTE =
<TokenType.QUOTE: 'QUOTE'>
RANGE =
<TokenType.RANGE: 'RANGE'>
RECURSIVE =
<TokenType.RECURSIVE: 'RECURSIVE'>
REFRESH =
<TokenType.REFRESH: 'REFRESH'>
RENAME =
<TokenType.RENAME: 'RENAME'>
REPLACE =
<TokenType.REPLACE: 'REPLACE'>
RETURNING =
<TokenType.RETURNING: 'RETURNING'>
REFERENCES =
<TokenType.REFERENCES: 'REFERENCES'>
RIGHT =
<TokenType.RIGHT: 'RIGHT'>
RLIKE =
<TokenType.RLIKE: 'RLIKE'>
ROLLBACK =
<TokenType.ROLLBACK: 'ROLLBACK'>
ROLLUP =
<TokenType.ROLLUP: 'ROLLUP'>
ROW =
<TokenType.ROW: 'ROW'>
ROWS =
<TokenType.ROWS: 'ROWS'>
SELECT =
<TokenType.SELECT: 'SELECT'>
SEMI =
<TokenType.SEMI: 'SEMI'>
SEPARATOR =
<TokenType.SEPARATOR: 'SEPARATOR'>
SEQUENCE =
<TokenType.SEQUENCE: 'SEQUENCE'>
SERDE_PROPERTIES =
<TokenType.SERDE_PROPERTIES: 'SERDE_PROPERTIES'>
SET =
<TokenType.SET: 'SET'>
SETTINGS =
<TokenType.SETTINGS: 'SETTINGS'>
SHOW =
<TokenType.SHOW: 'SHOW'>
SIMILAR_TO =
<TokenType.SIMILAR_TO: 'SIMILAR_TO'>
SOME =
<TokenType.SOME: 'SOME'>
SORT_BY =
<TokenType.SORT_BY: 'SORT_BY'>
START_WITH =
<TokenType.START_WITH: 'START_WITH'>
STORAGE_INTEGRATION =
<TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>
STRAIGHT_JOIN =
<TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>
STRUCT =
<TokenType.STRUCT: 'STRUCT'>
SUMMARIZE =
<TokenType.SUMMARIZE: 'SUMMARIZE'>
TABLE_SAMPLE =
<TokenType.TABLE_SAMPLE: 'TABLE_SAMPLE'>
TAG =
<TokenType.TAG: 'TAG'>
TEMPORARY =
<TokenType.TEMPORARY: 'TEMPORARY'>
TOP =
<TokenType.TOP: 'TOP'>
THEN =
<TokenType.THEN: 'THEN'>
TRUE =
<TokenType.TRUE: 'TRUE'>
TRUNCATE =
<TokenType.TRUNCATE: 'TRUNCATE'>
UNCACHE =
<TokenType.UNCACHE: 'UNCACHE'>
UNION =
<TokenType.UNION: 'UNION'>
UNNEST =
<TokenType.UNNEST: 'UNNEST'>
UNPIVOT =
<TokenType.UNPIVOT: 'UNPIVOT'>
UPDATE =
<TokenType.UPDATE: 'UPDATE'>
USE =
<TokenType.USE: 'USE'>
USING =
<TokenType.USING: 'USING'>
VALUES =
<TokenType.VALUES: 'VALUES'>
VIEW =
<TokenType.VIEW: 'VIEW'>
VOLATILE =
<TokenType.VOLATILE: 'VOLATILE'>
WHEN =
<TokenType.WHEN: 'WHEN'>
WHERE =
<TokenType.WHERE: 'WHERE'>
WINDOW =
<TokenType.WINDOW: 'WINDOW'>
WITH =
<TokenType.WITH: 'WITH'>
UNIQUE =
<TokenType.UNIQUE: 'UNIQUE'>
VERSION_SNAPSHOT =
<TokenType.VERSION_SNAPSHOT: 'VERSION_SNAPSHOT'>
TIMESTAMP_SNAPSHOT =
<TokenType.TIMESTAMP_SNAPSHOT: 'TIMESTAMP_SNAPSHOT'>
OPTION =
<TokenType.OPTION: 'OPTION'>
Inherited Members
- enum.Enum
- name
- value
class
Token:
406class Token: 407 __slots__ = ("token_type", "text", "line", "col", "start", "end", "comments") 408 409 @classmethod 410 def number(cls, number: int) -> Token: 411 """Returns a NUMBER token with `number` as its text.""" 412 return cls(TokenType.NUMBER, str(number)) 413 414 @classmethod 415 def string(cls, string: str) -> Token: 416 """Returns a STRING token with `string` as its text.""" 417 return cls(TokenType.STRING, string) 418 419 @classmethod 420 def identifier(cls, identifier: str) -> Token: 421 """Returns an IDENTIFIER token with `identifier` as its text.""" 422 return cls(TokenType.IDENTIFIER, identifier) 423 424 @classmethod 425 def var(cls, var: str) -> Token: 426 """Returns an VAR token with `var` as its text.""" 427 return cls(TokenType.VAR, var) 428 429 def __init__( 430 self, 431 token_type: TokenType, 432 text: str, 433 line: int = 1, 434 col: int = 1, 435 start: int = 0, 436 end: int = 0, 437 comments: t.Optional[t.List[str]] = None, 438 ) -> None: 439 """Token initializer. 440 441 Args: 442 token_type: The TokenType Enum. 443 text: The text of the token. 444 line: The line that the token ends on. 445 col: The column that the token ends on. 446 start: The start index of the token. 447 end: The ending index of the token. 448 comments: The comments to attach to the token. 449 """ 450 self.token_type = token_type 451 self.text = text 452 self.line = line 453 self.col = col 454 self.start = start 455 self.end = end 456 self.comments = [] if comments is None else comments 457 458 def __repr__(self) -> str: 459 attributes = ", ".join(f"{k}: {getattr(self, k)}" for k in self.__slots__) 460 return f"<Token {attributes}>"
Token( token_type: TokenType, text: str, line: int = 1, col: int = 1, start: int = 0, end: int = 0, comments: Optional[List[str]] = None)
429 def __init__( 430 self, 431 token_type: TokenType, 432 text: str, 433 line: int = 1, 434 col: int = 1, 435 start: int = 0, 436 end: int = 0, 437 comments: t.Optional[t.List[str]] = None, 438 ) -> None: 439 """Token initializer. 440 441 Args: 442 token_type: The TokenType Enum. 443 text: The text of the token. 444 line: The line that the token ends on. 445 col: The column that the token ends on. 446 start: The start index of the token. 447 end: The ending index of the token. 448 comments: The comments to attach to the token. 449 """ 450 self.token_type = token_type 451 self.text = text 452 self.line = line 453 self.col = col 454 self.start = start 455 self.end = end 456 self.comments = [] if comments is None else comments
Token initializer.
Arguments:
- token_type: The TokenType Enum.
- text: The text of the token.
- line: The line that the token ends on.
- col: The column that the token ends on.
- start: The start index of the token.
- end: The ending index of the token.
- comments: The comments to attach to the token.
409 @classmethod 410 def number(cls, number: int) -> Token: 411 """Returns a NUMBER token with `number` as its text.""" 412 return cls(TokenType.NUMBER, str(number))
Returns a NUMBER token with number
as its text.
414 @classmethod 415 def string(cls, string: str) -> Token: 416 """Returns a STRING token with `string` as its text.""" 417 return cls(TokenType.STRING, string)
Returns a STRING token with string
as its text.
419 @classmethod 420 def identifier(cls, identifier: str) -> Token: 421 """Returns an IDENTIFIER token with `identifier` as its text.""" 422 return cls(TokenType.IDENTIFIER, identifier)
Returns an IDENTIFIER token with identifier
as its text.
class
Tokenizer:
563class Tokenizer(metaclass=_Tokenizer): 564 SINGLE_TOKENS = { 565 "(": TokenType.L_PAREN, 566 ")": TokenType.R_PAREN, 567 "[": TokenType.L_BRACKET, 568 "]": TokenType.R_BRACKET, 569 "{": TokenType.L_BRACE, 570 "}": TokenType.R_BRACE, 571 "&": TokenType.AMP, 572 "^": TokenType.CARET, 573 ":": TokenType.COLON, 574 ",": TokenType.COMMA, 575 ".": TokenType.DOT, 576 "-": TokenType.DASH, 577 "=": TokenType.EQ, 578 ">": TokenType.GT, 579 "<": TokenType.LT, 580 "%": TokenType.MOD, 581 "!": TokenType.NOT, 582 "|": TokenType.PIPE, 583 "+": TokenType.PLUS, 584 ";": TokenType.SEMICOLON, 585 "/": TokenType.SLASH, 586 "\\": TokenType.BACKSLASH, 587 "*": TokenType.STAR, 588 "~": TokenType.TILDA, 589 "?": TokenType.PLACEHOLDER, 590 "@": TokenType.PARAMETER, 591 "#": TokenType.HASH, 592 # Used for breaking a var like x'y' but nothing else the token type doesn't matter 593 "'": TokenType.UNKNOWN, 594 "`": TokenType.UNKNOWN, 595 '"': TokenType.UNKNOWN, 596 } 597 598 BIT_STRINGS: t.List[str | t.Tuple[str, str]] = [] 599 BYTE_STRINGS: t.List[str | t.Tuple[str, str]] = [] 600 HEX_STRINGS: t.List[str | t.Tuple[str, str]] = [] 601 RAW_STRINGS: t.List[str | t.Tuple[str, str]] = [] 602 HEREDOC_STRINGS: t.List[str | t.Tuple[str, str]] = [] 603 UNICODE_STRINGS: t.List[str | t.Tuple[str, str]] = [] 604 IDENTIFIERS: t.List[str | t.Tuple[str, str]] = ['"'] 605 IDENTIFIER_ESCAPES = ['"'] 606 QUOTES: t.List[t.Tuple[str, str] | str] = ["'"] 607 STRING_ESCAPES = ["'"] 608 VAR_SINGLE_TOKENS: t.Set[str] = set() 609 610 # Whether the heredoc tags follow the same lexical rules as unquoted identifiers 611 HEREDOC_TAG_IS_IDENTIFIER = False 612 613 # Token that we'll generate as a fallback if the heredoc prefix doesn't correspond to a heredoc 614 HEREDOC_STRING_ALTERNATIVE = TokenType.VAR 615 616 # Whether string escape characters function as such when placed within raw strings 617 STRING_ESCAPES_ALLOWED_IN_RAW_STRINGS = True 618 619 NESTED_COMMENTS = True 620 621 # Autofilled 622 _COMMENTS: t.Dict[str, str] = {} 623 _FORMAT_STRINGS: t.Dict[str, t.Tuple[str, TokenType]] = {} 624 _IDENTIFIERS: t.Dict[str, str] = {} 625 _IDENTIFIER_ESCAPES: t.Set[str] = set() 626 _QUOTES: t.Dict[str, str] = {} 627 _STRING_ESCAPES: t.Set[str] = set() 628 _KEYWORD_TRIE: t.Dict = {} 629 _RS_TOKENIZER: t.Optional[t.Any] = None 630 631 KEYWORDS: t.Dict[str, TokenType] = { 632 **{f"{{%{postfix}": TokenType.BLOCK_START for postfix in ("", "+", "-")}, 633 **{f"{prefix}%}}": TokenType.BLOCK_END for prefix in ("", "+", "-")}, 634 **{f"{{{{{postfix}": TokenType.BLOCK_START for postfix in ("+", "-")}, 635 **{f"{prefix}}}}}": TokenType.BLOCK_END for prefix in ("+", "-")}, 636 "/*+": TokenType.HINT, 637 "==": TokenType.EQ, 638 "::": TokenType.DCOLON, 639 "||": TokenType.DPIPE, 640 ">=": TokenType.GTE, 641 "<=": TokenType.LTE, 642 "<>": TokenType.NEQ, 643 "!=": TokenType.NEQ, 644 ":=": TokenType.COLON_EQ, 645 "<=>": TokenType.NULLSAFE_EQ, 646 "->": TokenType.ARROW, 647 "->>": TokenType.DARROW, 648 "=>": TokenType.FARROW, 649 "#>": TokenType.HASH_ARROW, 650 "#>>": TokenType.DHASH_ARROW, 651 "<->": TokenType.LR_ARROW, 652 "&&": TokenType.DAMP, 653 "??": TokenType.DQMARK, 654 "~~~": TokenType.GLOB, 655 "~~": TokenType.LIKE, 656 "ALL": TokenType.ALL, 657 "ALWAYS": TokenType.ALWAYS, 658 "AND": TokenType.AND, 659 "ANTI": TokenType.ANTI, 660 "ANY": TokenType.ANY, 661 "ASC": TokenType.ASC, 662 "AS": TokenType.ALIAS, 663 "ASOF": TokenType.ASOF, 664 "AUTOINCREMENT": TokenType.AUTO_INCREMENT, 665 "AUTO_INCREMENT": TokenType.AUTO_INCREMENT, 666 "BEGIN": TokenType.BEGIN, 667 "BETWEEN": TokenType.BETWEEN, 668 "CACHE": TokenType.CACHE, 669 "UNCACHE": TokenType.UNCACHE, 670 "CASE": TokenType.CASE, 671 "CHARACTER SET": TokenType.CHARACTER_SET, 672 "CLUSTER BY": TokenType.CLUSTER_BY, 673 "COLLATE": TokenType.COLLATE, 674 "COLUMN": TokenType.COLUMN, 675 "COMMIT": TokenType.COMMIT, 676 "CONNECT BY": TokenType.CONNECT_BY, 677 "CONSTRAINT": TokenType.CONSTRAINT, 678 "COPY": TokenType.COPY, 679 "CREATE": TokenType.CREATE, 680 "CROSS": TokenType.CROSS, 681 "CUBE": TokenType.CUBE, 682 "CURRENT_DATE": TokenType.CURRENT_DATE, 683 "CURRENT_TIME": TokenType.CURRENT_TIME, 684 "CURRENT_TIMESTAMP": TokenType.CURRENT_TIMESTAMP, 685 "CURRENT_USER": TokenType.CURRENT_USER, 686 "DATABASE": TokenType.DATABASE, 687 "DEFAULT": TokenType.DEFAULT, 688 "DELETE": TokenType.DELETE, 689 "DESC": TokenType.DESC, 690 "DESCRIBE": TokenType.DESCRIBE, 691 "DISTINCT": TokenType.DISTINCT, 692 "DISTRIBUTE BY": TokenType.DISTRIBUTE_BY, 693 "DIV": TokenType.DIV, 694 "DROP": TokenType.DROP, 695 "ELSE": TokenType.ELSE, 696 "END": TokenType.END, 697 "ENUM": TokenType.ENUM, 698 "ESCAPE": TokenType.ESCAPE, 699 "EXCEPT": TokenType.EXCEPT, 700 "EXECUTE": TokenType.EXECUTE, 701 "EXISTS": TokenType.EXISTS, 702 "FALSE": TokenType.FALSE, 703 "FETCH": TokenType.FETCH, 704 "FILTER": TokenType.FILTER, 705 "FIRST": TokenType.FIRST, 706 "FULL": TokenType.FULL, 707 "FUNCTION": TokenType.FUNCTION, 708 "FOR": TokenType.FOR, 709 "FOREIGN KEY": TokenType.FOREIGN_KEY, 710 "FORMAT": TokenType.FORMAT, 711 "FROM": TokenType.FROM, 712 "GEOGRAPHY": TokenType.GEOGRAPHY, 713 "GEOMETRY": TokenType.GEOMETRY, 714 "GLOB": TokenType.GLOB, 715 "GROUP BY": TokenType.GROUP_BY, 716 "GROUPING SETS": TokenType.GROUPING_SETS, 717 "HAVING": TokenType.HAVING, 718 "ILIKE": TokenType.ILIKE, 719 "IN": TokenType.IN, 720 "INDEX": TokenType.INDEX, 721 "INET": TokenType.INET, 722 "INNER": TokenType.INNER, 723 "INSERT": TokenType.INSERT, 724 "INTERVAL": TokenType.INTERVAL, 725 "INTERSECT": TokenType.INTERSECT, 726 "INTO": TokenType.INTO, 727 "IS": TokenType.IS, 728 "ISNULL": TokenType.ISNULL, 729 "JOIN": TokenType.JOIN, 730 "KEEP": TokenType.KEEP, 731 "KILL": TokenType.KILL, 732 "LATERAL": TokenType.LATERAL, 733 "LEFT": TokenType.LEFT, 734 "LIKE": TokenType.LIKE, 735 "LIMIT": TokenType.LIMIT, 736 "LOAD": TokenType.LOAD, 737 "LOCK": TokenType.LOCK, 738 "MERGE": TokenType.MERGE, 739 "NATURAL": TokenType.NATURAL, 740 "NEXT": TokenType.NEXT, 741 "NOT": TokenType.NOT, 742 "NOTNULL": TokenType.NOTNULL, 743 "NULL": TokenType.NULL, 744 "OBJECT": TokenType.OBJECT, 745 "OFFSET": TokenType.OFFSET, 746 "ON": TokenType.ON, 747 "OR": TokenType.OR, 748 "XOR": TokenType.XOR, 749 "ORDER BY": TokenType.ORDER_BY, 750 "ORDINALITY": TokenType.ORDINALITY, 751 "OUTER": TokenType.OUTER, 752 "OVER": TokenType.OVER, 753 "OVERLAPS": TokenType.OVERLAPS, 754 "OVERWRITE": TokenType.OVERWRITE, 755 "PARTITION": TokenType.PARTITION, 756 "PARTITION BY": TokenType.PARTITION_BY, 757 "PARTITIONED BY": TokenType.PARTITION_BY, 758 "PARTITIONED_BY": TokenType.PARTITION_BY, 759 "PERCENT": TokenType.PERCENT, 760 "PIVOT": TokenType.PIVOT, 761 "PRAGMA": TokenType.PRAGMA, 762 "PRIMARY KEY": TokenType.PRIMARY_KEY, 763 "PROCEDURE": TokenType.PROCEDURE, 764 "QUALIFY": TokenType.QUALIFY, 765 "RANGE": TokenType.RANGE, 766 "RECURSIVE": TokenType.RECURSIVE, 767 "REGEXP": TokenType.RLIKE, 768 "RENAME": TokenType.RENAME, 769 "REPLACE": TokenType.REPLACE, 770 "RETURNING": TokenType.RETURNING, 771 "REFERENCES": TokenType.REFERENCES, 772 "RIGHT": TokenType.RIGHT, 773 "RLIKE": TokenType.RLIKE, 774 "ROLLBACK": TokenType.ROLLBACK, 775 "ROLLUP": TokenType.ROLLUP, 776 "ROW": TokenType.ROW, 777 "ROWS": TokenType.ROWS, 778 "SCHEMA": TokenType.SCHEMA, 779 "SELECT": TokenType.SELECT, 780 "SEMI": TokenType.SEMI, 781 "SET": TokenType.SET, 782 "SETTINGS": TokenType.SETTINGS, 783 "SHOW": TokenType.SHOW, 784 "SIMILAR TO": TokenType.SIMILAR_TO, 785 "SOME": TokenType.SOME, 786 "SORT BY": TokenType.SORT_BY, 787 "START WITH": TokenType.START_WITH, 788 "STRAIGHT_JOIN": TokenType.STRAIGHT_JOIN, 789 "TABLE": TokenType.TABLE, 790 "TABLESAMPLE": TokenType.TABLE_SAMPLE, 791 "TEMP": TokenType.TEMPORARY, 792 "TEMPORARY": TokenType.TEMPORARY, 793 "THEN": TokenType.THEN, 794 "TRUE": TokenType.TRUE, 795 "TRUNCATE": TokenType.TRUNCATE, 796 "UNION": TokenType.UNION, 797 "UNKNOWN": TokenType.UNKNOWN, 798 "UNNEST": TokenType.UNNEST, 799 "UNPIVOT": TokenType.UNPIVOT, 800 "UPDATE": TokenType.UPDATE, 801 "USE": TokenType.USE, 802 "USING": TokenType.USING, 803 "UUID": TokenType.UUID, 804 "VALUES": TokenType.VALUES, 805 "VIEW": TokenType.VIEW, 806 "VOLATILE": TokenType.VOLATILE, 807 "WHEN": TokenType.WHEN, 808 "WHERE": TokenType.WHERE, 809 "WINDOW": TokenType.WINDOW, 810 "WITH": TokenType.WITH, 811 "APPLY": TokenType.APPLY, 812 "ARRAY": TokenType.ARRAY, 813 "BIT": TokenType.BIT, 814 "BOOL": TokenType.BOOLEAN, 815 "BOOLEAN": TokenType.BOOLEAN, 816 "BYTE": TokenType.TINYINT, 817 "MEDIUMINT": TokenType.MEDIUMINT, 818 "INT1": TokenType.TINYINT, 819 "TINYINT": TokenType.TINYINT, 820 "INT16": TokenType.SMALLINT, 821 "SHORT": TokenType.SMALLINT, 822 "SMALLINT": TokenType.SMALLINT, 823 "INT128": TokenType.INT128, 824 "HUGEINT": TokenType.INT128, 825 "UHUGEINT": TokenType.UINT128, 826 "INT2": TokenType.SMALLINT, 827 "INTEGER": TokenType.INT, 828 "INT": TokenType.INT, 829 "INT4": TokenType.INT, 830 "INT32": TokenType.INT, 831 "INT64": TokenType.BIGINT, 832 "LONG": TokenType.BIGINT, 833 "BIGINT": TokenType.BIGINT, 834 "INT8": TokenType.TINYINT, 835 "UINT": TokenType.UINT, 836 "DEC": TokenType.DECIMAL, 837 "DECIMAL": TokenType.DECIMAL, 838 "DECIMAL32": TokenType.DECIMAL32, 839 "DECIMAL64": TokenType.DECIMAL64, 840 "DECIMAL128": TokenType.DECIMAL128, 841 "BIGDECIMAL": TokenType.BIGDECIMAL, 842 "BIGNUMERIC": TokenType.BIGDECIMAL, 843 "LIST": TokenType.LIST, 844 "MAP": TokenType.MAP, 845 "NULLABLE": TokenType.NULLABLE, 846 "NUMBER": TokenType.DECIMAL, 847 "NUMERIC": TokenType.DECIMAL, 848 "FIXED": TokenType.DECIMAL, 849 "REAL": TokenType.FLOAT, 850 "FLOAT": TokenType.FLOAT, 851 "FLOAT4": TokenType.FLOAT, 852 "FLOAT8": TokenType.DOUBLE, 853 "DOUBLE": TokenType.DOUBLE, 854 "DOUBLE PRECISION": TokenType.DOUBLE, 855 "JSON": TokenType.JSON, 856 "JSONB": TokenType.JSONB, 857 "CHAR": TokenType.CHAR, 858 "CHARACTER": TokenType.CHAR, 859 "NCHAR": TokenType.NCHAR, 860 "VARCHAR": TokenType.VARCHAR, 861 "VARCHAR2": TokenType.VARCHAR, 862 "NVARCHAR": TokenType.NVARCHAR, 863 "NVARCHAR2": TokenType.NVARCHAR, 864 "BPCHAR": TokenType.BPCHAR, 865 "STR": TokenType.TEXT, 866 "STRING": TokenType.TEXT, 867 "TEXT": TokenType.TEXT, 868 "LONGTEXT": TokenType.LONGTEXT, 869 "MEDIUMTEXT": TokenType.MEDIUMTEXT, 870 "TINYTEXT": TokenType.TINYTEXT, 871 "CLOB": TokenType.TEXT, 872 "LONGVARCHAR": TokenType.TEXT, 873 "BINARY": TokenType.BINARY, 874 "BLOB": TokenType.VARBINARY, 875 "LONGBLOB": TokenType.LONGBLOB, 876 "MEDIUMBLOB": TokenType.MEDIUMBLOB, 877 "TINYBLOB": TokenType.TINYBLOB, 878 "BYTEA": TokenType.VARBINARY, 879 "VARBINARY": TokenType.VARBINARY, 880 "TIME": TokenType.TIME, 881 "TIMETZ": TokenType.TIMETZ, 882 "TIMESTAMP": TokenType.TIMESTAMP, 883 "TIMESTAMPTZ": TokenType.TIMESTAMPTZ, 884 "TIMESTAMPLTZ": TokenType.TIMESTAMPLTZ, 885 "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ, 886 "TIMESTAMPNTZ": TokenType.TIMESTAMPNTZ, 887 "TIMESTAMP_NTZ": TokenType.TIMESTAMPNTZ, 888 "DATE": TokenType.DATE, 889 "DATETIME": TokenType.DATETIME, 890 "INT4RANGE": TokenType.INT4RANGE, 891 "INT4MULTIRANGE": TokenType.INT4MULTIRANGE, 892 "INT8RANGE": TokenType.INT8RANGE, 893 "INT8MULTIRANGE": TokenType.INT8MULTIRANGE, 894 "NUMRANGE": TokenType.NUMRANGE, 895 "NUMMULTIRANGE": TokenType.NUMMULTIRANGE, 896 "TSRANGE": TokenType.TSRANGE, 897 "TSMULTIRANGE": TokenType.TSMULTIRANGE, 898 "TSTZRANGE": TokenType.TSTZRANGE, 899 "TSTZMULTIRANGE": TokenType.TSTZMULTIRANGE, 900 "DATERANGE": TokenType.DATERANGE, 901 "DATEMULTIRANGE": TokenType.DATEMULTIRANGE, 902 "UNIQUE": TokenType.UNIQUE, 903 "VECTOR": TokenType.VECTOR, 904 "STRUCT": TokenType.STRUCT, 905 "SEQUENCE": TokenType.SEQUENCE, 906 "VARIANT": TokenType.VARIANT, 907 "ALTER": TokenType.ALTER, 908 "ANALYZE": TokenType.COMMAND, 909 "CALL": TokenType.COMMAND, 910 "COMMENT": TokenType.COMMENT, 911 "EXPLAIN": TokenType.COMMAND, 912 "GRANT": TokenType.GRANT, 913 "OPTIMIZE": TokenType.COMMAND, 914 "PREPARE": TokenType.COMMAND, 915 "VACUUM": TokenType.COMMAND, 916 "USER-DEFINED": TokenType.USERDEFINED, 917 "FOR VERSION": TokenType.VERSION_SNAPSHOT, 918 "FOR TIMESTAMP": TokenType.TIMESTAMP_SNAPSHOT, 919 } 920 921 WHITE_SPACE: t.Dict[t.Optional[str], TokenType] = { 922 " ": TokenType.SPACE, 923 "\t": TokenType.SPACE, 924 "\n": TokenType.BREAK, 925 "\r": TokenType.BREAK, 926 } 927 928 COMMANDS = { 929 TokenType.COMMAND, 930 TokenType.EXECUTE, 931 TokenType.FETCH, 932 TokenType.SHOW, 933 TokenType.RENAME, 934 } 935 936 COMMAND_PREFIX_TOKENS = {TokenType.SEMICOLON, TokenType.BEGIN} 937 938 # Handle numeric literals like in hive (3L = BIGINT) 939 NUMERIC_LITERALS: t.Dict[str, str] = {} 940 941 COMMENTS = ["--", ("/*", "*/")] 942 943 __slots__ = ( 944 "sql", 945 "size", 946 "tokens", 947 "dialect", 948 "_start", 949 "_current", 950 "_line", 951 "_col", 952 "_comments", 953 "_char", 954 "_end", 955 "_peek", 956 "_prev_token_line", 957 "_rs_dialect_settings", 958 ) 959 960 def __init__(self, dialect: DialectType = None) -> None: 961 from sqlglot.dialects import Dialect 962 963 self.dialect = Dialect.get_or_raise(dialect) 964 965 if USE_RS_TOKENIZER: 966 self._rs_dialect_settings = RsTokenizerDialectSettings( 967 unescaped_sequences=self.dialect.UNESCAPED_SEQUENCES, 968 identifiers_can_start_with_digit=self.dialect.IDENTIFIERS_CAN_START_WITH_DIGIT, 969 ) 970 971 self.reset() 972 973 def reset(self) -> None: 974 self.sql = "" 975 self.size = 0 976 self.tokens: t.List[Token] = [] 977 self._start = 0 978 self._current = 0 979 self._line = 1 980 self._col = 0 981 self._comments: t.List[str] = [] 982 983 self._char = "" 984 self._end = False 985 self._peek = "" 986 self._prev_token_line = -1 987 988 def tokenize(self, sql: str) -> t.List[Token]: 989 """Returns a list of tokens corresponding to the SQL string `sql`.""" 990 if USE_RS_TOKENIZER: 991 return self.tokenize_rs(sql) 992 993 self.reset() 994 self.sql = sql 995 self.size = len(sql) 996 997 try: 998 self._scan() 999 except Exception as e: 1000 start = max(self._current - 50, 0) 1001 end = min(self._current + 50, self.size - 1) 1002 context = self.sql[start:end] 1003 raise TokenError(f"Error tokenizing '{context}'") from e 1004 1005 return self.tokens 1006 1007 def _scan(self, until: t.Optional[t.Callable] = None) -> None: 1008 while self.size and not self._end: 1009 current = self._current 1010 1011 # Skip spaces here rather than iteratively calling advance() for performance reasons 1012 while current < self.size: 1013 char = self.sql[current] 1014 1015 if char.isspace() and (char == " " or char == "\t"): 1016 current += 1 1017 else: 1018 break 1019 1020 offset = current - self._current if current > self._current else 1 1021 1022 self._start = current 1023 self._advance(offset) 1024 1025 if not self._char.isspace(): 1026 if self._char.isdigit(): 1027 self._scan_number() 1028 elif self._char in self._IDENTIFIERS: 1029 self._scan_identifier(self._IDENTIFIERS[self._char]) 1030 else: 1031 self._scan_keywords() 1032 1033 if until and until(): 1034 break 1035 1036 if self.tokens and self._comments: 1037 self.tokens[-1].comments.extend(self._comments) 1038 1039 def _chars(self, size: int) -> str: 1040 if size == 1: 1041 return self._char 1042 1043 start = self._current - 1 1044 end = start + size 1045 1046 return self.sql[start:end] if end <= self.size else "" 1047 1048 def _advance(self, i: int = 1, alnum: bool = False) -> None: 1049 if self.WHITE_SPACE.get(self._char) is TokenType.BREAK: 1050 # Ensures we don't count an extra line if we get a \r\n line break sequence 1051 if not (self._char == "\r" and self._peek == "\n"): 1052 self._col = 1 1053 self._line += 1 1054 else: 1055 self._col += i 1056 1057 self._current += i 1058 self._end = self._current >= self.size 1059 self._char = self.sql[self._current - 1] 1060 self._peek = "" if self._end else self.sql[self._current] 1061 1062 if alnum and self._char.isalnum(): 1063 # Here we use local variables instead of attributes for better performance 1064 _col = self._col 1065 _current = self._current 1066 _end = self._end 1067 _peek = self._peek 1068 1069 while _peek.isalnum(): 1070 _col += 1 1071 _current += 1 1072 _end = _current >= self.size 1073 _peek = "" if _end else self.sql[_current] 1074 1075 self._col = _col 1076 self._current = _current 1077 self._end = _end 1078 self._peek = _peek 1079 self._char = self.sql[_current - 1] 1080 1081 @property 1082 def _text(self) -> str: 1083 return self.sql[self._start : self._current] 1084 1085 def _add(self, token_type: TokenType, text: t.Optional[str] = None) -> None: 1086 self._prev_token_line = self._line 1087 1088 if self._comments and token_type == TokenType.SEMICOLON and self.tokens: 1089 self.tokens[-1].comments.extend(self._comments) 1090 self._comments = [] 1091 1092 self.tokens.append( 1093 Token( 1094 token_type, 1095 text=self._text if text is None else text, 1096 line=self._line, 1097 col=self._col, 1098 start=self._start, 1099 end=self._current - 1, 1100 comments=self._comments, 1101 ) 1102 ) 1103 self._comments = [] 1104 1105 # If we have either a semicolon or a begin token before the command's token, we'll parse 1106 # whatever follows the command's token as a string 1107 if ( 1108 token_type in self.COMMANDS 1109 and self._peek != ";" 1110 and (len(self.tokens) == 1 or self.tokens[-2].token_type in self.COMMAND_PREFIX_TOKENS) 1111 ): 1112 start = self._current 1113 tokens = len(self.tokens) 1114 self._scan(lambda: self._peek == ";") 1115 self.tokens = self.tokens[:tokens] 1116 text = self.sql[start : self._current].strip() 1117 if text: 1118 self._add(TokenType.STRING, text) 1119 1120 def _scan_keywords(self) -> None: 1121 size = 0 1122 word = None 1123 chars = self._text 1124 char = chars 1125 prev_space = False 1126 skip = False 1127 trie = self._KEYWORD_TRIE 1128 single_token = char in self.SINGLE_TOKENS 1129 1130 while chars: 1131 if skip: 1132 result = TrieResult.PREFIX 1133 else: 1134 result, trie = in_trie(trie, char.upper()) 1135 1136 if result == TrieResult.FAILED: 1137 break 1138 if result == TrieResult.EXISTS: 1139 word = chars 1140 1141 end = self._current + size 1142 size += 1 1143 1144 if end < self.size: 1145 char = self.sql[end] 1146 single_token = single_token or char in self.SINGLE_TOKENS 1147 is_space = char.isspace() 1148 1149 if not is_space or not prev_space: 1150 if is_space: 1151 char = " " 1152 chars += char 1153 prev_space = is_space 1154 skip = False 1155 else: 1156 skip = True 1157 else: 1158 char = "" 1159 break 1160 1161 if word: 1162 if self._scan_string(word): 1163 return 1164 if self._scan_comment(word): 1165 return 1166 if prev_space or single_token or not char: 1167 self._advance(size - 1) 1168 word = word.upper() 1169 self._add(self.KEYWORDS[word], text=word) 1170 return 1171 1172 if self._char in self.SINGLE_TOKENS: 1173 self._add(self.SINGLE_TOKENS[self._char], text=self._char) 1174 return 1175 1176 self._scan_var() 1177 1178 def _scan_comment(self, comment_start: str) -> bool: 1179 if comment_start not in self._COMMENTS: 1180 return False 1181 1182 comment_start_line = self._line 1183 comment_start_size = len(comment_start) 1184 comment_end = self._COMMENTS[comment_start] 1185 1186 if comment_end: 1187 # Skip the comment's start delimiter 1188 self._advance(comment_start_size) 1189 1190 comment_count = 1 1191 comment_end_size = len(comment_end) 1192 1193 while not self._end: 1194 if self._chars(comment_end_size) == comment_end: 1195 comment_count -= 1 1196 if not comment_count: 1197 break 1198 1199 self._advance(alnum=True) 1200 1201 # Nested comments are allowed by some dialects, e.g. databricks, duckdb, postgres 1202 if ( 1203 self.NESTED_COMMENTS 1204 and not self._end 1205 and self._chars(comment_end_size) == comment_start 1206 ): 1207 self._advance(comment_start_size) 1208 comment_count += 1 1209 1210 self._comments.append(self._text[comment_start_size : -comment_end_size + 1]) 1211 self._advance(comment_end_size - 1) 1212 else: 1213 while not self._end and self.WHITE_SPACE.get(self._peek) is not TokenType.BREAK: 1214 self._advance(alnum=True) 1215 self._comments.append(self._text[comment_start_size:]) 1216 1217 # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding. 1218 # Multiple consecutive comments are preserved by appending them to the current comments list. 1219 if comment_start_line == self._prev_token_line: 1220 self.tokens[-1].comments.extend(self._comments) 1221 self._comments = [] 1222 self._prev_token_line = self._line 1223 1224 return True 1225 1226 def _scan_number(self) -> None: 1227 if self._char == "0": 1228 peek = self._peek.upper() 1229 if peek == "B": 1230 return self._scan_bits() if self.BIT_STRINGS else self._add(TokenType.NUMBER) 1231 elif peek == "X": 1232 return self._scan_hex() if self.HEX_STRINGS else self._add(TokenType.NUMBER) 1233 1234 decimal = False 1235 scientific = 0 1236 1237 while True: 1238 if self._peek.isdigit(): 1239 self._advance() 1240 elif self._peek == "." and not decimal: 1241 if self.tokens and self.tokens[-1].token_type == TokenType.PARAMETER: 1242 return self._add(TokenType.NUMBER) 1243 decimal = True 1244 self._advance() 1245 elif self._peek in ("-", "+") and scientific == 1: 1246 scientific += 1 1247 self._advance() 1248 elif self._peek.upper() == "E" and not scientific: 1249 scientific += 1 1250 self._advance() 1251 elif self._peek.isidentifier(): 1252 number_text = self._text 1253 literal = "" 1254 1255 while self._peek.strip() and self._peek not in self.SINGLE_TOKENS: 1256 literal += self._peek 1257 self._advance() 1258 1259 token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal.upper(), "")) 1260 1261 if token_type: 1262 self._add(TokenType.NUMBER, number_text) 1263 self._add(TokenType.DCOLON, "::") 1264 return self._add(token_type, literal) 1265 elif self.dialect.IDENTIFIERS_CAN_START_WITH_DIGIT: 1266 return self._add(TokenType.VAR) 1267 1268 self._advance(-len(literal)) 1269 return self._add(TokenType.NUMBER, number_text) 1270 else: 1271 return self._add(TokenType.NUMBER) 1272 1273 def _scan_bits(self) -> None: 1274 self._advance() 1275 value = self._extract_value() 1276 try: 1277 # If `value` can't be converted to a binary, fallback to tokenizing it as an identifier 1278 int(value, 2) 1279 self._add(TokenType.BIT_STRING, value[2:]) # Drop the 0b 1280 except ValueError: 1281 self._add(TokenType.IDENTIFIER) 1282 1283 def _scan_hex(self) -> None: 1284 self._advance() 1285 value = self._extract_value() 1286 try: 1287 # If `value` can't be converted to a hex, fallback to tokenizing it as an identifier 1288 int(value, 16) 1289 self._add(TokenType.HEX_STRING, value[2:]) # Drop the 0x 1290 except ValueError: 1291 self._add(TokenType.IDENTIFIER) 1292 1293 def _extract_value(self) -> str: 1294 while True: 1295 char = self._peek.strip() 1296 if char and char not in self.SINGLE_TOKENS: 1297 self._advance(alnum=True) 1298 else: 1299 break 1300 1301 return self._text 1302 1303 def _scan_string(self, start: str) -> bool: 1304 base = None 1305 token_type = TokenType.STRING 1306 1307 if start in self._QUOTES: 1308 end = self._QUOTES[start] 1309 elif start in self._FORMAT_STRINGS: 1310 end, token_type = self._FORMAT_STRINGS[start] 1311 1312 if token_type == TokenType.HEX_STRING: 1313 base = 16 1314 elif token_type == TokenType.BIT_STRING: 1315 base = 2 1316 elif token_type == TokenType.HEREDOC_STRING: 1317 self._advance() 1318 1319 if self._char == end: 1320 tag = "" 1321 else: 1322 tag = self._extract_string( 1323 end, 1324 raw_string=True, 1325 raise_unmatched=not self.HEREDOC_TAG_IS_IDENTIFIER, 1326 ) 1327 1328 if tag and self.HEREDOC_TAG_IS_IDENTIFIER and (self._end or not tag.isidentifier()): 1329 if not self._end: 1330 self._advance(-1) 1331 1332 self._advance(-len(tag)) 1333 self._add(self.HEREDOC_STRING_ALTERNATIVE) 1334 return True 1335 1336 end = f"{start}{tag}{end}" 1337 else: 1338 return False 1339 1340 self._advance(len(start)) 1341 text = self._extract_string(end, raw_string=token_type == TokenType.RAW_STRING) 1342 1343 if base: 1344 try: 1345 int(text, base) 1346 except Exception: 1347 raise TokenError( 1348 f"Numeric string contains invalid characters from {self._line}:{self._start}" 1349 ) 1350 1351 self._add(token_type, text) 1352 return True 1353 1354 def _scan_identifier(self, identifier_end: str) -> None: 1355 self._advance() 1356 text = self._extract_string(identifier_end, escapes=self._IDENTIFIER_ESCAPES) 1357 self._add(TokenType.IDENTIFIER, text) 1358 1359 def _scan_var(self) -> None: 1360 while True: 1361 char = self._peek.strip() 1362 if char and (char in self.VAR_SINGLE_TOKENS or char not in self.SINGLE_TOKENS): 1363 self._advance(alnum=True) 1364 else: 1365 break 1366 1367 self._add( 1368 TokenType.VAR 1369 if self.tokens and self.tokens[-1].token_type == TokenType.PARAMETER 1370 else self.KEYWORDS.get(self._text.upper(), TokenType.VAR) 1371 ) 1372 1373 def _extract_string( 1374 self, 1375 delimiter: str, 1376 escapes: t.Optional[t.Set[str]] = None, 1377 raw_string: bool = False, 1378 raise_unmatched: bool = True, 1379 ) -> str: 1380 text = "" 1381 delim_size = len(delimiter) 1382 escapes = self._STRING_ESCAPES if escapes is None else escapes 1383 1384 while True: 1385 if ( 1386 not raw_string 1387 and self.dialect.UNESCAPED_SEQUENCES 1388 and self._peek 1389 and self._char in self.STRING_ESCAPES 1390 ): 1391 unescaped_sequence = self.dialect.UNESCAPED_SEQUENCES.get(self._char + self._peek) 1392 if unescaped_sequence: 1393 self._advance(2) 1394 text += unescaped_sequence 1395 continue 1396 if ( 1397 (self.STRING_ESCAPES_ALLOWED_IN_RAW_STRINGS or not raw_string) 1398 and self._char in escapes 1399 and (self._peek == delimiter or self._peek in escapes) 1400 and (self._char not in self._QUOTES or self._char == self._peek) 1401 ): 1402 if self._peek == delimiter: 1403 text += self._peek 1404 else: 1405 text += self._char + self._peek 1406 1407 if self._current + 1 < self.size: 1408 self._advance(2) 1409 else: 1410 raise TokenError(f"Missing {delimiter} from {self._line}:{self._current}") 1411 else: 1412 if self._chars(delim_size) == delimiter: 1413 if delim_size > 1: 1414 self._advance(delim_size - 1) 1415 break 1416 1417 if self._end: 1418 if not raise_unmatched: 1419 return text + self._char 1420 1421 raise TokenError(f"Missing {delimiter} from {self._line}:{self._start}") 1422 1423 current = self._current - 1 1424 self._advance(alnum=True) 1425 text += self.sql[current : self._current - 1] 1426 1427 return text 1428 1429 def tokenize_rs(self, sql: str) -> t.List[Token]: 1430 if not self._RS_TOKENIZER: 1431 raise SqlglotError("Rust tokenizer is not available") 1432 1433 try: 1434 tokens = self._RS_TOKENIZER.tokenize(sql, self._rs_dialect_settings) 1435 for token in tokens: 1436 token.token_type = _ALL_TOKEN_TYPES[token.token_type_index] 1437 return tokens 1438 except Exception as e: 1439 raise TokenError(str(e))
Tokenizer( dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None)
960 def __init__(self, dialect: DialectType = None) -> None: 961 from sqlglot.dialects import Dialect 962 963 self.dialect = Dialect.get_or_raise(dialect) 964 965 if USE_RS_TOKENIZER: 966 self._rs_dialect_settings = RsTokenizerDialectSettings( 967 unescaped_sequences=self.dialect.UNESCAPED_SEQUENCES, 968 identifiers_can_start_with_digit=self.dialect.IDENTIFIERS_CAN_START_WITH_DIGIT, 969 ) 970 971 self.reset()
SINGLE_TOKENS =
{'(': <TokenType.L_PAREN: 'L_PAREN'>, ')': <TokenType.R_PAREN: 'R_PAREN'>, '[': <TokenType.L_BRACKET: 'L_BRACKET'>, ']': <TokenType.R_BRACKET: 'R_BRACKET'>, '{': <TokenType.L_BRACE: 'L_BRACE'>, '}': <TokenType.R_BRACE: 'R_BRACE'>, '&': <TokenType.AMP: 'AMP'>, '^': <TokenType.CARET: 'CARET'>, ':': <TokenType.COLON: 'COLON'>, ',': <TokenType.COMMA: 'COMMA'>, '.': <TokenType.DOT: 'DOT'>, '-': <TokenType.DASH: 'DASH'>, '=': <TokenType.EQ: 'EQ'>, '>': <TokenType.GT: 'GT'>, '<': <TokenType.LT: 'LT'>, '%': <TokenType.MOD: 'MOD'>, '!': <TokenType.NOT: 'NOT'>, '|': <TokenType.PIPE: 'PIPE'>, '+': <TokenType.PLUS: 'PLUS'>, ';': <TokenType.SEMICOLON: 'SEMICOLON'>, '/': <TokenType.SLASH: 'SLASH'>, '\\': <TokenType.BACKSLASH: 'BACKSLASH'>, '*': <TokenType.STAR: 'STAR'>, '~': <TokenType.TILDA: 'TILDA'>, '?': <TokenType.PLACEHOLDER: 'PLACEHOLDER'>, '@': <TokenType.PARAMETER: 'PARAMETER'>, '#': <TokenType.HASH: 'HASH'>, "'": <TokenType.UNKNOWN: 'UNKNOWN'>, '`': <TokenType.UNKNOWN: 'UNKNOWN'>, '"': <TokenType.UNKNOWN: 'UNKNOWN'>}
HEREDOC_STRING_ALTERNATIVE =
<TokenType.VAR: 'VAR'>
KEYWORDS: Dict[str, TokenType] =
{'{%': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%-': <TokenType.BLOCK_START: 'BLOCK_START'>, '%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '+%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '{{+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{{-': <TokenType.BLOCK_START: 'BLOCK_START'>, '+}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '/*+': <TokenType.HINT: 'HINT'>, '==': <TokenType.EQ: 'EQ'>, '::': <TokenType.DCOLON: 'DCOLON'>, '||': <TokenType.DPIPE: 'DPIPE'>, '>=': <TokenType.GTE: 'GTE'>, '<=': <TokenType.LTE: 'LTE'>, '<>': <TokenType.NEQ: 'NEQ'>, '!=': <TokenType.NEQ: 'NEQ'>, ':=': <TokenType.COLON_EQ: 'COLON_EQ'>, '<=>': <TokenType.NULLSAFE_EQ: 'NULLSAFE_EQ'>, '->': <TokenType.ARROW: 'ARROW'>, '->>': <TokenType.DARROW: 'DARROW'>, '=>': <TokenType.FARROW: 'FARROW'>, '#>': <TokenType.HASH_ARROW: 'HASH_ARROW'>, '#>>': <TokenType.DHASH_ARROW: 'DHASH_ARROW'>, '<->': <TokenType.LR_ARROW: 'LR_ARROW'>, '&&': <TokenType.DAMP: 'DAMP'>, '??': <TokenType.DQMARK: 'DQMARK'>, '~~~': <TokenType.GLOB: 'GLOB'>, '~~': <TokenType.LIKE: 'LIKE'>, 'ALL': <TokenType.ALL: 'ALL'>, 'ALWAYS': <TokenType.ALWAYS: 'ALWAYS'>, 'AND': <TokenType.AND: 'AND'>, 'ANTI': <TokenType.ANTI: 'ANTI'>, 'ANY': <TokenType.ANY: 'ANY'>, 'ASC': <TokenType.ASC: 'ASC'>, 'AS': <TokenType.ALIAS: 'ALIAS'>, 'ASOF': <TokenType.ASOF: 'ASOF'>, 'AUTOINCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'AUTO_INCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'BEGIN': <TokenType.BEGIN: 'BEGIN'>, 'BETWEEN': <TokenType.BETWEEN: 'BETWEEN'>, 'CACHE': <TokenType.CACHE: 'CACHE'>, 'UNCACHE': <TokenType.UNCACHE: 'UNCACHE'>, 'CASE': <TokenType.CASE: 'CASE'>, 'CHARACTER SET': <TokenType.CHARACTER_SET: 'CHARACTER_SET'>, 'CLUSTER BY': <TokenType.CLUSTER_BY: 'CLUSTER_BY'>, 'COLLATE': <TokenType.COLLATE: 'COLLATE'>, 'COLUMN': <TokenType.COLUMN: 'COLUMN'>, 'COMMIT': <TokenType.COMMIT: 'COMMIT'>, 'CONNECT BY': <TokenType.CONNECT_BY: 'CONNECT_BY'>, 'CONSTRAINT': <TokenType.CONSTRAINT: 'CONSTRAINT'>, 'COPY': <TokenType.COPY: 'COPY'>, 'CREATE': <TokenType.CREATE: 'CREATE'>, 'CROSS': <TokenType.CROSS: 'CROSS'>, 'CUBE': <TokenType.CUBE: 'CUBE'>, 'CURRENT_DATE': <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, 'CURRENT_TIME': <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, 'CURRENT_TIMESTAMP': <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, 'CURRENT_USER': <TokenType.CURRENT_USER: 'CURRENT_USER'>, 'DATABASE': <TokenType.DATABASE: 'DATABASE'>, 'DEFAULT': <TokenType.DEFAULT: 'DEFAULT'>, 'DELETE': <TokenType.DELETE: 'DELETE'>, 'DESC': <TokenType.DESC: 'DESC'>, 'DESCRIBE': <TokenType.DESCRIBE: 'DESCRIBE'>, 'DISTINCT': <TokenType.DISTINCT: 'DISTINCT'>, 'DISTRIBUTE BY': <TokenType.DISTRIBUTE_BY: 'DISTRIBUTE_BY'>, 'DIV': <TokenType.DIV: 'DIV'>, 'DROP': <TokenType.DROP: 'DROP'>, 'ELSE': <TokenType.ELSE: 'ELSE'>, 'END': <TokenType.END: 'END'>, 'ENUM': <TokenType.ENUM: 'ENUM'>, 'ESCAPE': <TokenType.ESCAPE: 'ESCAPE'>, 'EXCEPT': <TokenType.EXCEPT: 'EXCEPT'>, 'EXECUTE': <TokenType.EXECUTE: 'EXECUTE'>, 'EXISTS': <TokenType.EXISTS: 'EXISTS'>, 'FALSE': <TokenType.FALSE: 'FALSE'>, 'FETCH': <TokenType.FETCH: 'FETCH'>, 'FILTER': <TokenType.FILTER: 'FILTER'>, 'FIRST': <TokenType.FIRST: 'FIRST'>, 'FULL': <TokenType.FULL: 'FULL'>, 'FUNCTION': <TokenType.FUNCTION: 'FUNCTION'>, 'FOR': <TokenType.FOR: 'FOR'>, 'FOREIGN KEY': <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, 'FORMAT': <TokenType.FORMAT: 'FORMAT'>, 'FROM': <TokenType.FROM: 'FROM'>, 'GEOGRAPHY': <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, 'GEOMETRY': <TokenType.GEOMETRY: 'GEOMETRY'>, 'GLOB': <TokenType.GLOB: 'GLOB'>, 'GROUP BY': <TokenType.GROUP_BY: 'GROUP_BY'>, 'GROUPING SETS': <TokenType.GROUPING_SETS: 'GROUPING_SETS'>, 'HAVING': <TokenType.HAVING: 'HAVING'>, 'ILIKE': <TokenType.ILIKE: 'ILIKE'>, 'IN': <TokenType.IN: 'IN'>, 'INDEX': <TokenType.INDEX: 'INDEX'>, 'INET': <TokenType.INET: 'INET'>, 'INNER': <TokenType.INNER: 'INNER'>, 'INSERT': <TokenType.INSERT: 'INSERT'>, 'INTERVAL': <TokenType.INTERVAL: 'INTERVAL'>, 'INTERSECT': <TokenType.INTERSECT: 'INTERSECT'>, 'INTO': <TokenType.INTO: 'INTO'>, 'IS': <TokenType.IS: 'IS'>, 'ISNULL': <TokenType.ISNULL: 'ISNULL'>, 'JOIN': <TokenType.JOIN: 'JOIN'>, 'KEEP': <TokenType.KEEP: 'KEEP'>, 'KILL': <TokenType.KILL: 'KILL'>, 'LATERAL': <TokenType.LATERAL: 'LATERAL'>, 'LEFT': <TokenType.LEFT: 'LEFT'>, 'LIKE': <TokenType.LIKE: 'LIKE'>, 'LIMIT': <TokenType.LIMIT: 'LIMIT'>, 'LOAD': <TokenType.LOAD: 'LOAD'>, 'LOCK': <TokenType.LOCK: 'LOCK'>, 'MERGE': <TokenType.MERGE: 'MERGE'>, 'NATURAL': <TokenType.NATURAL: 'NATURAL'>, 'NEXT': <TokenType.NEXT: 'NEXT'>, 'NOT': <TokenType.NOT: 'NOT'>, 'NOTNULL': <TokenType.NOTNULL: 'NOTNULL'>, 'NULL': <TokenType.NULL: 'NULL'>, 'OBJECT': <TokenType.OBJECT: 'OBJECT'>, 'OFFSET': <TokenType.OFFSET: 'OFFSET'>, 'ON': <TokenType.ON: 'ON'>, 'OR': <TokenType.OR: 'OR'>, 'XOR': <TokenType.XOR: 'XOR'>, 'ORDER BY': <TokenType.ORDER_BY: 'ORDER_BY'>, 'ORDINALITY': <TokenType.ORDINALITY: 'ORDINALITY'>, 'OUTER': <TokenType.OUTER: 'OUTER'>, 'OVER': <TokenType.OVER: 'OVER'>, 'OVERLAPS': <TokenType.OVERLAPS: 'OVERLAPS'>, 'OVERWRITE': <TokenType.OVERWRITE: 'OVERWRITE'>, 'PARTITION': <TokenType.PARTITION: 'PARTITION'>, 'PARTITION BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED_BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PERCENT': <TokenType.PERCENT: 'PERCENT'>, 'PIVOT': <TokenType.PIVOT: 'PIVOT'>, 'PRAGMA': <TokenType.PRAGMA: 'PRAGMA'>, 'PRIMARY KEY': <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, 'PROCEDURE': <TokenType.PROCEDURE: 'PROCEDURE'>, 'QUALIFY': <TokenType.QUALIFY: 'QUALIFY'>, 'RANGE': <TokenType.RANGE: 'RANGE'>, 'RECURSIVE': <TokenType.RECURSIVE: 'RECURSIVE'>, 'REGEXP': <TokenType.RLIKE: 'RLIKE'>, 'RENAME': <TokenType.RENAME: 'RENAME'>, 'REPLACE': <TokenType.REPLACE: 'REPLACE'>, 'RETURNING': <TokenType.RETURNING: 'RETURNING'>, 'REFERENCES': <TokenType.REFERENCES: 'REFERENCES'>, 'RIGHT': <TokenType.RIGHT: 'RIGHT'>, 'RLIKE': <TokenType.RLIKE: 'RLIKE'>, 'ROLLBACK': <TokenType.ROLLBACK: 'ROLLBACK'>, 'ROLLUP': <TokenType.ROLLUP: 'ROLLUP'>, 'ROW': <TokenType.ROW: 'ROW'>, 'ROWS': <TokenType.ROWS: 'ROWS'>, 'SCHEMA': <TokenType.SCHEMA: 'SCHEMA'>, 'SELECT': <TokenType.SELECT: 'SELECT'>, 'SEMI': <TokenType.SEMI: 'SEMI'>, 'SET': <TokenType.SET: 'SET'>, 'SETTINGS': <TokenType.SETTINGS: 'SETTINGS'>, 'SHOW': <TokenType.SHOW: 'SHOW'>, 'SIMILAR TO': <TokenType.SIMILAR_TO: 'SIMILAR_TO'>, 'SOME': <TokenType.SOME: 'SOME'>, 'SORT BY': <TokenType.SORT_BY: 'SORT_BY'>, 'START WITH': <TokenType.START_WITH: 'START_WITH'>, 'STRAIGHT_JOIN': <TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>, 'TABLE': <TokenType.TABLE: 'TABLE'>, 'TABLESAMPLE': <TokenType.TABLE_SAMPLE: 'TABLE_SAMPLE'>, 'TEMP': <TokenType.TEMPORARY: 'TEMPORARY'>, 'TEMPORARY': <TokenType.TEMPORARY: 'TEMPORARY'>, 'THEN': <TokenType.THEN: 'THEN'>, 'TRUE': <TokenType.TRUE: 'TRUE'>, 'TRUNCATE': <TokenType.TRUNCATE: 'TRUNCATE'>, 'UNION': <TokenType.UNION: 'UNION'>, 'UNKNOWN': <TokenType.UNKNOWN: 'UNKNOWN'>, 'UNNEST': <TokenType.UNNEST: 'UNNEST'>, 'UNPIVOT': <TokenType.UNPIVOT: 'UNPIVOT'>, 'UPDATE': <TokenType.UPDATE: 'UPDATE'>, 'USE': <TokenType.USE: 'USE'>, 'USING': <TokenType.USING: 'USING'>, 'UUID': <TokenType.UUID: 'UUID'>, 'VALUES': <TokenType.VALUES: 'VALUES'>, 'VIEW': <TokenType.VIEW: 'VIEW'>, 'VOLATILE': <TokenType.VOLATILE: 'VOLATILE'>, 'WHEN': <TokenType.WHEN: 'WHEN'>, 'WHERE': <TokenType.WHERE: 'WHERE'>, 'WINDOW': <TokenType.WINDOW: 'WINDOW'>, 'WITH': <TokenType.WITH: 'WITH'>, 'APPLY': <TokenType.APPLY: 'APPLY'>, 'ARRAY': <TokenType.ARRAY: 'ARRAY'>, 'BIT': <TokenType.BIT: 'BIT'>, 'BOOL': <TokenType.BOOLEAN: 'BOOLEAN'>, 'BOOLEAN': <TokenType.BOOLEAN: 'BOOLEAN'>, 'BYTE': <TokenType.TINYINT: 'TINYINT'>, 'MEDIUMINT': <TokenType.MEDIUMINT: 'MEDIUMINT'>, 'INT1': <TokenType.TINYINT: 'TINYINT'>, 'TINYINT': <TokenType.TINYINT: 'TINYINT'>, 'INT16': <TokenType.SMALLINT: 'SMALLINT'>, 'SHORT': <TokenType.SMALLINT: 'SMALLINT'>, 'SMALLINT': <TokenType.SMALLINT: 'SMALLINT'>, 'INT128': <TokenType.INT128: 'INT128'>, 'HUGEINT': <TokenType.INT128: 'INT128'>, 'UHUGEINT': <TokenType.UINT128: 'UINT128'>, 'INT2': <TokenType.SMALLINT: 'SMALLINT'>, 'INTEGER': <TokenType.INT: 'INT'>, 'INT': <TokenType.INT: 'INT'>, 'INT4': <TokenType.INT: 'INT'>, 'INT32': <TokenType.INT: 'INT'>, 'INT64': <TokenType.BIGINT: 'BIGINT'>, 'LONG': <TokenType.BIGINT: 'BIGINT'>, 'BIGINT': <TokenType.BIGINT: 'BIGINT'>, 'INT8': <TokenType.TINYINT: 'TINYINT'>, 'UINT': <TokenType.UINT: 'UINT'>, 'DEC': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL32': <TokenType.DECIMAL32: 'DECIMAL32'>, 'DECIMAL64': <TokenType.DECIMAL64: 'DECIMAL64'>, 'DECIMAL128': <TokenType.DECIMAL128: 'DECIMAL128'>, 'BIGDECIMAL': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'BIGNUMERIC': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'LIST': <TokenType.LIST: 'LIST'>, 'MAP': <TokenType.MAP: 'MAP'>, 'NULLABLE': <TokenType.NULLABLE: 'NULLABLE'>, 'NUMBER': <TokenType.DECIMAL: 'DECIMAL'>, 'NUMERIC': <TokenType.DECIMAL: 'DECIMAL'>, 'FIXED': <TokenType.DECIMAL: 'DECIMAL'>, 'REAL': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT4': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT8': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE PRECISION': <TokenType.DOUBLE: 'DOUBLE'>, 'JSON': <TokenType.JSON: 'JSON'>, 'JSONB': <TokenType.JSONB: 'JSONB'>, 'CHAR': <TokenType.CHAR: 'CHAR'>, 'CHARACTER': <TokenType.CHAR: 'CHAR'>, 'NCHAR': <TokenType.NCHAR: 'NCHAR'>, 'VARCHAR': <TokenType.VARCHAR: 'VARCHAR'>, 'VARCHAR2': <TokenType.VARCHAR: 'VARCHAR'>, 'NVARCHAR': <TokenType.NVARCHAR: 'NVARCHAR'>, 'NVARCHAR2': <TokenType.NVARCHAR: 'NVARCHAR'>, 'BPCHAR': <TokenType.BPCHAR: 'BPCHAR'>, 'STR': <TokenType.TEXT: 'TEXT'>, 'STRING': <TokenType.TEXT: 'TEXT'>, 'TEXT': <TokenType.TEXT: 'TEXT'>, 'LONGTEXT': <TokenType.LONGTEXT: 'LONGTEXT'>, 'MEDIUMTEXT': <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, 'TINYTEXT': <TokenType.TINYTEXT: 'TINYTEXT'>, 'CLOB': <TokenType.TEXT: 'TEXT'>, 'LONGVARCHAR': <TokenType.TEXT: 'TEXT'>, 'BINARY': <TokenType.BINARY: 'BINARY'>, 'BLOB': <TokenType.VARBINARY: 'VARBINARY'>, 'LONGBLOB': <TokenType.LONGBLOB: 'LONGBLOB'>, 'MEDIUMBLOB': <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, 'TINYBLOB': <TokenType.TINYBLOB: 'TINYBLOB'>, 'BYTEA': <TokenType.VARBINARY: 'VARBINARY'>, 'VARBINARY': <TokenType.VARBINARY: 'VARBINARY'>, 'TIME': <TokenType.TIME: 'TIME'>, 'TIMETZ': <TokenType.TIMETZ: 'TIMETZ'>, 'TIMESTAMP': <TokenType.TIMESTAMP: 'TIMESTAMP'>, 'TIMESTAMPTZ': <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, 'TIMESTAMPLTZ': <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, 'TIMESTAMP_LTZ': <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, 'TIMESTAMPNTZ': <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, 'TIMESTAMP_NTZ': <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, 'DATE': <TokenType.DATE: 'DATE'>, 'DATETIME': <TokenType.DATETIME: 'DATETIME'>, 'INT4RANGE': <TokenType.INT4RANGE: 'INT4RANGE'>, 'INT4MULTIRANGE': <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, 'INT8RANGE': <TokenType.INT8RANGE: 'INT8RANGE'>, 'INT8MULTIRANGE': <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, 'NUMRANGE': <TokenType.NUMRANGE: 'NUMRANGE'>, 'NUMMULTIRANGE': <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, 'TSRANGE': <TokenType.TSRANGE: 'TSRANGE'>, 'TSMULTIRANGE': <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, 'TSTZRANGE': <TokenType.TSTZRANGE: 'TSTZRANGE'>, 'TSTZMULTIRANGE': <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, 'DATERANGE': <TokenType.DATERANGE: 'DATERANGE'>, 'DATEMULTIRANGE': <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, 'UNIQUE': <TokenType.UNIQUE: 'UNIQUE'>, 'VECTOR': <TokenType.VECTOR: 'VECTOR'>, 'STRUCT': <TokenType.STRUCT: 'STRUCT'>, 'SEQUENCE': <TokenType.SEQUENCE: 'SEQUENCE'>, 'VARIANT': <TokenType.VARIANT: 'VARIANT'>, 'ALTER': <TokenType.ALTER: 'ALTER'>, 'ANALYZE': <TokenType.COMMAND: 'COMMAND'>, 'CALL': <TokenType.COMMAND: 'COMMAND'>, 'COMMENT': <TokenType.COMMENT: 'COMMENT'>, 'EXPLAIN': <TokenType.COMMAND: 'COMMAND'>, 'GRANT': <TokenType.GRANT: 'GRANT'>, 'OPTIMIZE': <TokenType.COMMAND: 'COMMAND'>, 'PREPARE': <TokenType.COMMAND: 'COMMAND'>, 'VACUUM': <TokenType.COMMAND: 'COMMAND'>, 'USER-DEFINED': <TokenType.USERDEFINED: 'USERDEFINED'>, 'FOR VERSION': <TokenType.VERSION_SNAPSHOT: 'VERSION_SNAPSHOT'>, 'FOR TIMESTAMP': <TokenType.TIMESTAMP_SNAPSHOT: 'TIMESTAMP_SNAPSHOT'>}
WHITE_SPACE: Dict[Optional[str], TokenType] =
{' ': <TokenType.SPACE: 'SPACE'>, '\t': <TokenType.SPACE: 'SPACE'>, '\n': <TokenType.BREAK: 'BREAK'>, '\r': <TokenType.BREAK: 'BREAK'>}
COMMANDS =
{<TokenType.EXECUTE: 'EXECUTE'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.FETCH: 'FETCH'>, <TokenType.SHOW: 'SHOW'>, <TokenType.RENAME: 'RENAME'>}
COMMAND_PREFIX_TOKENS =
{<TokenType.BEGIN: 'BEGIN'>, <TokenType.SEMICOLON: 'SEMICOLON'>}
def
reset(self) -> None:
973 def reset(self) -> None: 974 self.sql = "" 975 self.size = 0 976 self.tokens: t.List[Token] = [] 977 self._start = 0 978 self._current = 0 979 self._line = 1 980 self._col = 0 981 self._comments: t.List[str] = [] 982 983 self._char = "" 984 self._end = False 985 self._peek = "" 986 self._prev_token_line = -1
988 def tokenize(self, sql: str) -> t.List[Token]: 989 """Returns a list of tokens corresponding to the SQL string `sql`.""" 990 if USE_RS_TOKENIZER: 991 return self.tokenize_rs(sql) 992 993 self.reset() 994 self.sql = sql 995 self.size = len(sql) 996 997 try: 998 self._scan() 999 except Exception as e: 1000 start = max(self._current - 50, 0) 1001 end = min(self._current + 50, self.size - 1) 1002 context = self.sql[start:end] 1003 raise TokenError(f"Error tokenizing '{context}'") from e 1004 1005 return self.tokens
Returns a list of tokens corresponding to the SQL string sql
.
1429 def tokenize_rs(self, sql: str) -> t.List[Token]: 1430 if not self._RS_TOKENIZER: 1431 raise SqlglotError("Rust tokenizer is not available") 1432 1433 try: 1434 tokens = self._RS_TOKENIZER.tokenize(sql, self._rs_dialect_settings) 1435 for token in tokens: 1436 token.token_type = _ALL_TOKEN_TYPES[token.token_type_index] 1437 return tokens 1438 except Exception as e: 1439 raise TokenError(str(e))