60 lines
2.8 KiB
Lua
60 lines
2.8 KiB
Lua
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-- Copyright 2006-2019 Mitchell mitchell.att.foicica.com. See License.txt.
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-- SQL LPeg lexer.
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local lexer = require('lexer')
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local token, word_match = lexer.token, lexer.word_match
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local P, R, S = lpeg.P, lpeg.R, lpeg.S
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local lex = lexer.new('sql')
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-- Whitespace.
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lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1))
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-- Keywords.
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lex:add_rule('keyword', token(lexer.KEYWORD, word_match([[
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add all alter analyze and as asc asensitive before between bigint binary blob
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both by call cascade case change char character check collate column condition
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connection constraint continue convert create cross current_date current_time
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current_timestamp current_user cursor database databases day_hour
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day_microsecond day_minute day_second dec decimal declare default delayed
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delete desc describe deterministic distinct distinctrow div double drop dual
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each else elseif enclosed escaped exists exit explain false fetch float for
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force foreign from fulltext goto grant group having high_priority
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hour_microsecond hour_minute hour_second if ignore in index infile inner inout
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insensitive insert int integer interval into is iterate join key keys kill
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leading leave left like limit lines load localtime localtimestamp lock long
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longblob longtext loop low_priority match mediumblob mediumint mediumtext
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middleint minute_microsecond minute_second mod modifies natural not
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no_write_to_binlog null numeric on optimize option optionally or order out
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outer outfile precision primary procedure purge read reads real references
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regexp rename repeat replace require restrict return revoke right rlike schema
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schemas second_microsecond select sensitive separator set show smallint soname
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spatial specific sql sqlexception sqlstate sqlwarning sql_big_result
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sql_calc_found_rows sql_small_result ssl starting straight_join table
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terminated text then tinyblob tinyint tinytext to trailing trigger true undo
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union unique unlock unsigned update usage use using utc_date utc_time
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utc_timestamp values varbinary varchar varcharacter varying when where while
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with write xor year_month zerofill
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]], true)))
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-- Identifiers.
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lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word))
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-- Strings.
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lex:add_rule('string', token(lexer.STRING, lexer.delimited_range("'") +
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lexer.delimited_range('"') +
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lexer.delimited_range('`')))
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-- Comments.
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local line_comment = (P('--') + '#') * lexer.nonnewline^0
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local block_comment = '/*' * (lexer.any - '*/')^0 * P('*/')^-1
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lex:add_rule('comment', token(lexer.COMMENT, line_comment + block_comment))
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-- Numbers.
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lex:add_rule('number', token(lexer.NUMBER, lexer.float + lexer.integer))
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-- Operators.
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lex:add_rule('operator', token(lexer.OPERATOR, S(',()')))
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return lex
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