Lemon is a parser generator, maintained as part of the SQLite project, that generates a look-ahead LR parser (LALR parser) in the programming language C from an input context-free grammar. The generator is quite simple, implemented in one C source file with another file used as a template for output. Lexical analysis is performed externally. Lemon is similar to the programs Bison and Yacc, but is incompatible with both. The grammar input format is different, to help prevent common coding errors. Other distinctive features include a reentrant, thread-safe output parser, and the concept of non-terminal destructors that try to make it easier to avoid memory leaks. SQLite uses Lemon with a hand-coded tokenizer to parse SQL strings. Lemon, together with re2c and a re2c wrapper named Perplex, are used in BRL-CAD as platform-agnostic and easily compilable alternatives to Flex and Bison. This combination is also used with STEPcode.

From Wikipedia (CC BY-SA 4.0).

Notable quotes

“Here mulberries bleed; the grape’s lithe cluster bends; And blue the rush-bound cucumber depends.”
— Appendix Vergiliana (Copa); translated by C. A. Elton, Specimens of the Classical Poets, vol. 2 (1814), pp. 132-4
“And when the woman saw that the tree was good for food, and that it was pleasant to the eyes, and a tree to be desired to make one wise, she took of the fruit thereof, and did eat, and gave also unto her husband with her; and he did eat.”
— Genesis 3:6 (KJV)
“Morning and evening Maids heard the goblins cry: "Come buy our orchard fruits, Come buy, come buy..."”
— Christina Rossetti, Goblin Market (1862)
“My living in Yorkshire was so far out of the way, that it was actually twelve miles from a lemon.”
— Sydney Smith, Lady Holland's Memoir, vol. 1 (New York: Harper & Bros, 1855), p. 234
“Sharp-tasted citrons Median climes produce, (Bitter the rind, but generous is the juice,) A cordial fruit, a present antidote Against the direful stepdame's deadly draught.”
— Virgil, Georgics, bk. 2. John Dryden's translation (1697)
“Boys dream of native girls who bring breadfruit, Whatever they are.”
— Philip Larkin, "Breadfruit", Collected Poems (1988), p. 141

Quotes via Wikiquote (CC BY-SA), each with its original source.

Overview

Lemon is a parser generator, maintained as part of the SQLite project, that generates a look-ahead LR parser (LALR parser) in the programming language C from an input context-free grammar. The generator is quite simple, implemented in one C source file with another file used as a template for output. Lexical analysis is performed externally. Lemon is similar to the programs Bison and Yacc, but is incompatible with both. The grammar input format is different, to help prevent common coding errors. Other distinctive features include a reentrant, thread-safe output parser, and the concept of non-terminal destructors that try to make it easier to avoid memory leaks. SQLite uses Lemon with a hand-coded tokenizer to parse SQL strings. Lemon, together with re2c and a re2c wrapper named Perplex, are used in BRL-CAD as platform-agnostic and easily compilable alternatives to Flex and Bison. This combination is also used with STEPcode.

From Wikipedia (CC BY-SA 4.0).

Notable quotes

“Here mulberries bleed; the grape’s lithe cluster bends; And blue the rush-bound cucumber depends.”
— Appendix Vergiliana (Copa); translated by C. A. Elton, Specimens of the Classical Poets, vol. 2 (1814), pp. 132-4
“And when the woman saw that the tree was good for food, and that it was pleasant to the eyes, and a tree to be desired to make one wise, she took of the fruit thereof, and did eat, and gave also unto her husband with her; and he did eat.”
— Genesis 3:6 (KJV)
“Morning and evening Maids heard the goblins cry: "Come buy our orchard fruits, Come buy, come buy..."”
— Christina Rossetti, Goblin Market (1862)
“My living in Yorkshire was so far out of the way, that it was actually twelve miles from a lemon.”
— Sydney Smith, Lady Holland's Memoir, vol. 1 (New York: Harper & Bros, 1855), p. 234
“Sharp-tasted citrons Median climes produce, (Bitter the rind, but generous is the juice,) A cordial fruit, a present antidote Against the direful stepdame's deadly draught.”
— Virgil, Georgics, bk. 2. John Dryden's translation (1697)
“Boys dream of native girls who bring breadfruit, Whatever they are.”
— Philip Larkin, "Breadfruit", Collected Poems (1988), p. 141

Quotes via Wikiquote (CC BY-SA), each with its original source.

Lemon is a parser generator, maintained as part of the SQLite project, that generates a look-ahead LR parser (LALR parser) in the programming language C from an input context-free grammar. The generator is quite simple, implemented in one C source file with another file used as a template for output. Lexical analysis is performed externally.

Not who you're looking for? Others named Lemon: matching card game · 2017 single by N.E.R.D and Rihanna · three-dimensional geometric shape · 2017 film by Janicza Bravo

Lemon across IJR

Open questions

thai lemongrass chicken recipe

On Watch

🔴LIVE | MACHINE PARTY | Cloakzy x Gimmick x Lemon | #BUNGULATETheBurntPeanut

🔴LIVE | MACHINE PARTY | GIMMICK x LEMON x Gingy | WACKADOODLE WEDNESDAY | #BUNGULATETheBurntPeanut

🔴LIVE | [DROPS TOMORROW] TARKOV SEASONAL | DAY 2 | HutchMF x Lemon | #BUNGULATETheBurntPeanut

Studio characters

James Caulfeild, 1st Earl of CharlemontRumors confirmed: surprisingly easy to talk to.Jesse PlemonsFamously busy. Currently all yours.Lemony SnicketHeadline energy, small-talk hours.

Ask Genius about Lemon Create in Studio Build a game Watch videos