Khaïs COLIN
e78511f692
Add support for semicolon-terminated statements according to the updated grammar. This change enables executing multiple SQL statements in a single input by separating them with semicolons. Key improvements include: - Update grammar to require semicolons after statements - Add Semicolon token to the tokenizer - Implement error recovery by skipping to next semicolon on parse errors - Create helper functions for checking semicolons in statement parsers - Add tests for multiple statements and error conditions
42 lines
975 B
EBNF
42 lines
975 B
EBNF
/* token is first stage of parsing */
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token ::= insert
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| select
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| meta-command
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| int
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| string
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| semicolon
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| end-of-file
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/* command is second stage of parsing */
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command ::= cmd-insert semicolon
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| cmd-select semicolon
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cmd-insert ::= insert int string string
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cmd-select ::= select
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insert ::= "insert"
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select ::= "select"
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semicolon ::= ";"
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meta-command ::= "." "exit"
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| "about"
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| "version"
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int ::= sign? digit+
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sign ::= "+"
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| "-"
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digit ::= "0"
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| "1"
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| "2"
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| "3"
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| "4"
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| "5"
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| "6"
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| "7"
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| "8"
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| "9"
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string ::= '"' string-char* '"'
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string-char ::= '\' utf8-char
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| utf8-char-not-dbl-quote
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