c0a8dd4536
Some string literals were incorrectly accepted inside negated classes because the negated class check computed the actual result string set instead of applying the structural rules. This commit replaces class_set_expression_strings with a structural class_set_expression_may_contain_strings check. Also removes some incorrect tests.
32 lines
1.4 KiB
JavaScript
32 lines
1.4 KiB
JavaScript
test("triple & in unicode sets class is a syntax error", () => {
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expect(() => eval("/[a&&&]/v")).toThrow(SyntaxError);
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expect(() => eval("/[a&&b&&&c]/v")).toThrow(SyntaxError);
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});
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test("empty \\q{} in negated unicode sets class is a syntax error", () => {
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expect(() => eval("/[^\\q{}]/v")).toThrow(SyntaxError);
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});
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test("multi-char string intersection where all operands contain strings is a syntax error in negated class", () => {
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expect(() => eval("/[^\\q{foo}&&\\q{bar}]/v")).toThrow(SyntaxError);
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expect(() => eval("/[^\\q{foo}&&\\q{foo}]/v")).toThrow(SyntaxError);
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});
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test("multi-char string in negated unicode sets class union is a syntax error", () => {
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expect(() => eval("/[^\\q{ab}]/v")).toThrow(SyntaxError);
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expect(() => eval("/[^\\q{foo}]/v")).toThrow(SyntaxError);
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});
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test("subtraction with string-valued left operand is a syntax error in negated class", () => {
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expect(() => eval("/[^\\q{foo}--[a-z]]/v")).toThrow(SyntaxError);
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});
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test("valid unicode sets class set operations in negated class", () => {
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expect(() => eval("/[^\\q{a}]/v")).not.toThrow();
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expect(() => eval("/[^\\q{foo}&&[a]]/v")).not.toThrow();
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expect(() => eval("/[^\\q{a}&&\\q{b}]/v")).not.toThrow();
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expect(() => eval("/[^\\q{a}&&[a-z]]/v")).not.toThrow();
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expect(() => eval("/[^[a-z]--\\q{foo}]/v")).not.toThrow();
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expect(() => eval("/[a&&b]/v")).not.toThrow();
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expect(() => eval("/[a&&b&&c]/v")).not.toThrow();
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});
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