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expr: Handle trailing backslash error

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Teemu Pätsi 2025-05-24 01:27:09 +03:00
parent cd9ce77098
commit 4555e6fe48
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3 changed files with 28 additions and 0 deletions
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20
tests/by-util/test_expr.rs
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@ -365,6 +365,26 @@ fn test_regex() {
.stdout_only("0\n");
}
#[test]
fn test_regex_trailing_backslash() {
new_ucmd!()
.args(&["\\", ":", "\\\\"])
.succeeds()
.stdout_only("1\n");
new_ucmd!()
.args(&["\\", ":", "\\"])
.fails()
.stderr_only("expr: Trailing backslash\n");
new_ucmd!()
.args(&["abc\\", ":", "abc\\\\"])
.succeeds()
.stdout_only("4\n");
new_ucmd!()
.args(&["abc\\", ":", "abc\\"])
.fails()
.stderr_only("expr: Trailing backslash\n");
}
#[test]
fn test_substr() {
new_ucmd!()