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tr: properly determine trailing backslash

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Fixes #6729.
This commit is contained in:
Ben Wiederhake 2024-09-24 02:23:58 +02:00
parent 165bbc272a
commit a8b9e042e1
2 changed files with 30 additions and 18 deletions
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24
tests/by-util/test_tr.rs
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@ -1456,15 +1456,37 @@ fn test_unescaped_backslash_warning_false_positive() {
.pipe_in(r"a\b\c\")
.succeeds()
.stdout_only("abc");
new_ucmd!()
.args(&["-d", r"\\\\"])
.pipe_in(r"a\b\c\")
.succeeds()
.stdout_only("abc");
new_ucmd!()
.args(&["-d", r"\\\\\\"])
.pipe_in(r"a\b\c\")
.succeeds()
.stdout_only("abc");
}
#[test]
#[cfg(unix)]
fn test_trailing_backslash_is_only_input_character() {
fn test_trailing_backslash() {
new_ucmd!()
.args(&["-d", r"\"])
.pipe_in(r"a\b\c\")
.succeeds()
.stderr_is("tr: warning: an unescaped backslash at end of string is not portable\n")
.stdout_is("abc");
new_ucmd!()
.args(&["-d", r"\\\"])
.pipe_in(r"a\b\c\")
.succeeds()
.stderr_is("tr: warning: an unescaped backslash at end of string is not portable\n")
.stdout_is("abc");
new_ucmd!()
.args(&["-d", r"\\\\\"])
.pipe_in(r"a\b\c\")
.succeeds()
.stderr_is("tr: warning: an unescaped backslash at end of string is not portable\n")
.stdout_is("abc");
}