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fix: update escape character for sqlite #2

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Merged
sgress454 merged 1 commit into from
Dec 1, 2025
Merged

fix: update escape character for sqlite #2

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19 changes: 2 additions & 17 deletions pegjs/sqlite.pegjs
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Original file line number Diff line number Diff line change
Expand Up @@ -2655,26 +2655,11 @@ single_quote_char
/ escape_char

single_char
= [^'\\] // remove \0-\x1F\x7f pnCtrl char [^'\\\0-\x1F\x7f]
= [^'] // remove \0-\x1F\x7f pnCtrl char [^'\\\0-\x1F\x7f]
/ escape_char

escape_char
= "\\'" { return "\\'"; }
/ '\\"' { return '\\"'; }
/ "\\\\" { return "\\\\"; }
/ "\\/" { return "\\/"; }
/ "\\b" { return "\b"; }
/ "\\f" { return "\f"; }
/ "\\n" { return "\n"; }
/ "\\r" { return "\r"; }
/ "\\t" { return "\t"; }
/ "\\u" h1:hexDigit h2:hexDigit h3:hexDigit h4:hexDigit {
return String.fromCharCode(parseInt("0x" + h1 + h2 + h3 + h4));
}
/ "\\" { return "\\"; }
/ "''" { return "''" }
/ '""' { return '""' }
/ '``' { return '``' }
= "''"

line_terminator
= [\n\r]
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8 changes: 6 additions & 2 deletions test/sqlite.spec.js
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Expand Up @@ -266,8 +266,12 @@ describe('sqlite', () => {
})
})
it('should support LIKE with ESCAPE', () => {
const sql = `SELECT * FROM table_name WHERE column_name LIKE '%pattern%' ESCAPE '\'`
expect(getParsedSql(sql)).to.be.equal(`SELECT * FROM "table_name" WHERE "column_name" LIKE '%pattern%' ESCAPE '\'`)
const sql = `SELECT * FROM table_name WHERE column_name LIKE '%pattern%' ESCAPE 'x'`
expect(getParsedSql(sql)).to.be.equal(`SELECT * FROM "table_name" WHERE "column_name" LIKE '%pattern%' ESCAPE 'x'`)
})
it('should allow single backslash without escaping', () => {
const sql = `SELECT * FROM table_name WHERE column_name LIKE '\\_%' ESCAPE '\\'`
expect(getParsedSql(sql)).to.be.equal(`SELECT * FROM "table_name" WHERE "column_name" LIKE '\\_%' ESCAPE '\\'`)
})
it('should support string concatenation in LIKE opts', () => {
const sql = `SELECT * FROM file WHERE path LIKE 'C:' || CHAR(92) || 'Users' || CHAR(92) || 'example.txt'`
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