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sql-lexer's Introduction

SQL::Lexer

** Under Construction - Pull requests welcome **

Description

This grammer is a foundation for SQL Language parsers. It handles the common lexical constructs of SQL.

Primary Tokens

Special Characters

  • singlequote
  • doublequote
  • quote - either single or double
  • backquote
  • period
  • underscore
  • plus-sign
  • minus-sign
  • left-paren
  • right-paren
  • colon
  • semicolon
  • comma
  • solidus - ordinary forward slash

Comments

  • simple-comment - '--' or '#' to end-of-line
  • bracketed-comment - '/*' to '*/' multi-line comment
  • comment - either of the above

Literals

  • literal
  • signed-numeric-literal
  • unsigned-numeric-literal
  • char-sting-literal
  • datetime-literal
  • interval-literal
  • date-string
  • time-string
  • timestamp-string
  • boolean-literal

Operators

  • operator-symbol
  • equals-operator
  • non-equals-operator
  • less-than-operator
  • greater-than-operator
  • plus-operator
  • minus-operator
  • multiply-operator
  • divide-operator
  • greater-than-or-equals-operator
  • less-than-or-equals-operator

Identifiers

  • quoted-label quoted with backtick
  • regular-identifier
  • keyword
  • non-reserved-word
  • reserved-word

=== Other ===

  • variable

sql-lexer's People

Contributors

alexdaniel avatar dmaestro avatar

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