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