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