mirror of
https://github.com/nushell/nushell.git
synced 2024-11-22 00:13:21 +01:00
Support ByteStream
s in bytes starts-with
and bytes ends-with
(#12887)
# Description Restores `bytes starts-with` so that it is able to work with byte streams once again. For parity/consistency, this PR also adds byte stream support to `bytes ends-with`. # User-Facing Changes - `bytes ends-with` now supports byte streams. # Tests + Formatting Re-enabled tests for `bytes starts-with` and added tests for `bytes ends-with`.
This commit is contained in:
parent
aec41f3df0
commit
6891267b53
120
crates/nu-cmd-extra/tests/commands/bytes/ends_with.rs
Normal file
120
crates/nu-cmd-extra/tests/commands/bytes/ends_with.rs
Normal file
@ -0,0 +1,120 @@
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use nu_test_support::nu;
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#[test]
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fn basic_binary_end_with() {
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let actual = nu!(r#"
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"hello world" | into binary | bytes ends-with 0x[77 6f 72 6c 64]
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"#);
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assert_eq!(actual.out, "true");
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}
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#[test]
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fn basic_string_fails() {
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let actual = nu!(r#"
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"hello world" | bytes ends-with 0x[77 6f 72 6c 64]
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"#);
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assert!(actual.err.contains("command doesn't support"));
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assert_eq!(actual.out, "");
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}
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#[test]
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fn short_stream_binary() {
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let actual = nu!(r#"
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nu --testbin repeater (0x[01]) 5 | bytes ends-with 0x[010101]
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"#);
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assert_eq!(actual.out, "true");
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}
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#[test]
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fn short_stream_mismatch() {
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let actual = nu!(r#"
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nu --testbin repeater (0x[010203]) 5 | bytes ends-with 0x[010204]
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"#);
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assert_eq!(actual.out, "false");
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}
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#[test]
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fn short_stream_binary_overflow() {
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let actual = nu!(r#"
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nu --testbin repeater (0x[01]) 5 | bytes ends-with 0x[010101010101]
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"#);
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assert_eq!(actual.out, "false");
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}
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#[test]
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fn long_stream_binary() {
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let actual = nu!(r#"
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nu --testbin repeater (0x[01]) 32768 | bytes ends-with 0x[010101]
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"#);
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assert_eq!(actual.out, "true");
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}
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#[test]
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fn long_stream_binary_overflow() {
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// .. ranges are inclusive..inclusive, so we don't need to +1 to check for an overflow
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let actual = nu!(r#"
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nu --testbin repeater (0x[01]) 32768 | bytes ends-with (0..32768 | each {|| 0x[01] } | bytes collect)
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"#);
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assert_eq!(actual.out, "false");
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}
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#[test]
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fn long_stream_binary_exact() {
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// ranges are inclusive..inclusive, so we don't need to +1 to check for an overflow
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let actual = nu!(r#"
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nu --testbin repeater (0x[01020304]) 8192 | bytes ends-with (0..<8192 | each {|| 0x[01020304] } | bytes collect)
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"#);
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assert_eq!(actual.out, "true");
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}
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#[test]
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fn long_stream_string_exact() {
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// ranges are inclusive..inclusive, so we don't need to +1 to check for an overflow
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let actual = nu!(r#"
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nu --testbin repeater hell 8192 | bytes ends-with (0..<8192 | each {|| "hell" | into binary } | bytes collect)
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"#);
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assert_eq!(actual.out, "true");
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}
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#[test]
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fn long_stream_mixed_exact() {
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// ranges are inclusive..inclusive, so we don't need to +1 to check for an overflow
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let actual = nu!(r#"
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let binseg = (0..<2048 | each {|| 0x[003d9fbf] } | bytes collect)
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let strseg = (0..<2048 | each {|| "hell" | into binary } | bytes collect)
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nu --testbin repeat_bytes 003d9fbf 2048 68656c6c 2048 | bytes ends-with (bytes build $binseg $strseg)
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"#);
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assert_eq!(
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actual.err, "",
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"invocation failed. command line limit likely reached"
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);
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assert_eq!(actual.out, "true");
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}
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#[test]
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fn long_stream_mixed_overflow() {
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// ranges are inclusive..inclusive, so we don't need to +1 to check for an overflow
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let actual = nu!(r#"
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let binseg = (0..<2048 | each {|| 0x[003d9fbf] } | bytes collect)
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let strseg = (0..<2048 | each {|| "hell" | into binary } | bytes collect)
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nu --testbin repeat_bytes 003d9fbf 2048 68656c6c 2048 | bytes ends-with (bytes build 0x[01] $binseg $strseg)
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"#);
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assert_eq!(
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actual.err, "",
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"invocation failed. command line limit likely reached"
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);
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assert_eq!(actual.out, "false");
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}
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@ -1 +1,2 @@
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mod ends_with;
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mod starts_with;
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@ -19,102 +19,102 @@ fn basic_string_fails() {
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assert_eq!(actual.out, "");
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}
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// #[test]
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// fn short_stream_binary() {
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// let actual = nu!(r#"
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// nu --testbin repeater (0x[01]) 5 | bytes starts-with 0x[010101]
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// "#);
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#[test]
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fn short_stream_binary() {
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let actual = nu!(r#"
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nu --testbin repeater (0x[01]) 5 | bytes starts-with 0x[010101]
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"#);
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// assert_eq!(actual.out, "true");
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// }
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assert_eq!(actual.out, "true");
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}
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// #[test]
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// fn short_stream_mismatch() {
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// let actual = nu!(r#"
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// nu --testbin repeater (0x[010203]) 5 | bytes starts-with 0x[010204]
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// "#);
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#[test]
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fn short_stream_mismatch() {
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let actual = nu!(r#"
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nu --testbin repeater (0x[010203]) 5 | bytes starts-with 0x[010204]
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"#);
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// assert_eq!(actual.out, "false");
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// }
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assert_eq!(actual.out, "false");
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}
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// #[test]
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// fn short_stream_binary_overflow() {
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// let actual = nu!(r#"
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// nu --testbin repeater (0x[01]) 5 | bytes starts-with 0x[010101010101]
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// "#);
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#[test]
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fn short_stream_binary_overflow() {
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let actual = nu!(r#"
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nu --testbin repeater (0x[01]) 5 | bytes starts-with 0x[010101010101]
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"#);
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// assert_eq!(actual.out, "false");
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// }
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assert_eq!(actual.out, "false");
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}
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// #[test]
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// fn long_stream_binary() {
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// let actual = nu!(r#"
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// nu --testbin repeater (0x[01]) 32768 | bytes starts-with 0x[010101]
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// "#);
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#[test]
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fn long_stream_binary() {
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let actual = nu!(r#"
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nu --testbin repeater (0x[01]) 32768 | bytes starts-with 0x[010101]
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"#);
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// assert_eq!(actual.out, "true");
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// }
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assert_eq!(actual.out, "true");
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}
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// #[test]
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// fn long_stream_binary_overflow() {
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// // .. ranges are inclusive..inclusive, so we don't need to +1 to check for an overflow
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// let actual = nu!(r#"
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// nu --testbin repeater (0x[01]) 32768 | bytes starts-with (0..32768 | each {|| 0x[01] } | bytes collect)
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// "#);
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#[test]
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fn long_stream_binary_overflow() {
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// .. ranges are inclusive..inclusive, so we don't need to +1 to check for an overflow
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let actual = nu!(r#"
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nu --testbin repeater (0x[01]) 32768 | bytes starts-with (0..32768 | each {|| 0x[01] } | bytes collect)
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"#);
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// assert_eq!(actual.out, "false");
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// }
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assert_eq!(actual.out, "false");
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}
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// #[test]
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// fn long_stream_binary_exact() {
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// // ranges are inclusive..inclusive, so we don't need to +1 to check for an overflow
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// let actual = nu!(r#"
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// nu --testbin repeater (0x[01020304]) 8192 | bytes starts-with (0..<8192 | each {|| 0x[01020304] } | bytes collect)
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// "#);
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#[test]
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fn long_stream_binary_exact() {
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// ranges are inclusive..inclusive, so we don't need to +1 to check for an overflow
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let actual = nu!(r#"
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nu --testbin repeater (0x[01020304]) 8192 | bytes starts-with (0..<8192 | each {|| 0x[01020304] } | bytes collect)
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"#);
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// assert_eq!(actual.out, "true");
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// }
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assert_eq!(actual.out, "true");
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}
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// #[test]
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// fn long_stream_string_exact() {
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// // ranges are inclusive..inclusive, so we don't need to +1 to check for an overflow
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// let actual = nu!(r#"
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// nu --testbin repeater hell 8192 | bytes starts-with (0..<8192 | each {|| "hell" | into binary } | bytes collect)
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// "#);
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#[test]
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fn long_stream_string_exact() {
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// ranges are inclusive..inclusive, so we don't need to +1 to check for an overflow
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let actual = nu!(r#"
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nu --testbin repeater hell 8192 | bytes starts-with (0..<8192 | each {|| "hell" | into binary } | bytes collect)
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"#);
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// assert_eq!(actual.out, "true");
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// }
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assert_eq!(actual.out, "true");
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}
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// #[test]
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// fn long_stream_mixed_exact() {
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// // ranges are inclusive..inclusive, so we don't need to +1 to check for an overflow
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// let actual = nu!(r#"
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// let binseg = (0..<2048 | each {|| 0x[003d9fbf] } | bytes collect)
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// let strseg = (0..<2048 | each {|| "hell" | into binary } | bytes collect)
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#[test]
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fn long_stream_mixed_exact() {
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// ranges are inclusive..inclusive, so we don't need to +1 to check for an overflow
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let actual = nu!(r#"
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let binseg = (0..<2048 | each {|| 0x[003d9fbf] } | bytes collect)
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let strseg = (0..<2048 | each {|| "hell" | into binary } | bytes collect)
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// nu --testbin repeat_bytes 003d9fbf 2048 68656c6c 2048 | bytes starts-with (bytes build $binseg $strseg)
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// "#);
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nu --testbin repeat_bytes 003d9fbf 2048 68656c6c 2048 | bytes starts-with (bytes build $binseg $strseg)
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"#);
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// assert_eq!(
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// actual.err, "",
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// "invocation failed. command line limit likely reached"
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// );
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// assert_eq!(actual.out, "true");
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// }
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assert_eq!(
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actual.err, "",
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"invocation failed. command line limit likely reached"
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);
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assert_eq!(actual.out, "true");
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}
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// #[test]
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// fn long_stream_mixed_overflow() {
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// // ranges are inclusive..inclusive, so we don't need to +1 to check for an overflow
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// let actual = nu!(r#"
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// let binseg = (0..<2048 | each {|| 0x[003d9fbf] } | bytes collect)
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// let strseg = (0..<2048 | each {|| "hell" | into binary } | bytes collect)
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#[test]
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fn long_stream_mixed_overflow() {
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// ranges are inclusive..inclusive, so we don't need to +1 to check for an overflow
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let actual = nu!(r#"
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let binseg = (0..<2048 | each {|| 0x[003d9fbf] } | bytes collect)
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let strseg = (0..<2048 | each {|| "hell" | into binary } | bytes collect)
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// nu --testbin repeat_bytes 003d9fbf 2048 68656c6c 2048 | bytes starts-with (bytes build $binseg $strseg 0x[01])
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// "#);
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nu --testbin repeat_bytes 003d9fbf 2048 68656c6c 2048 | bytes starts-with (bytes build $binseg $strseg 0x[01])
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"#);
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// assert_eq!(
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// actual.err, "",
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// "invocation failed. command line limit likely reached"
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// );
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// assert_eq!(actual.out, "false");
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// }
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assert_eq!(
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actual.err, "",
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"invocation failed. command line limit likely reached"
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);
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assert_eq!(actual.out, "false");
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}
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@ -1,5 +1,9 @@
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use nu_cmd_base::input_handler::{operate, CmdArgument};
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use nu_engine::command_prelude::*;
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use std::{
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collections::VecDeque,
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io::{self, BufRead},
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};
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struct Arguments {
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pattern: Vec<u8>,
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@ -52,14 +56,54 @@ impl Command for BytesEndsWith {
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call: &Call,
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input: PipelineData,
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) -> Result<PipelineData, ShellError> {
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let head = call.head;
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let pattern: Vec<u8> = call.req(engine_state, stack, 0)?;
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let cell_paths: Vec<CellPath> = call.rest(engine_state, stack, 1)?;
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let cell_paths = (!cell_paths.is_empty()).then_some(cell_paths);
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let arg = Arguments {
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pattern,
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cell_paths,
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};
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operate(ends_with, arg, input, call.head, engine_state.ctrlc.clone())
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if let PipelineData::ByteStream(stream, ..) = input {
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let span = stream.span();
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if pattern.is_empty() {
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return Ok(Value::bool(true, head).into_pipeline_data());
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}
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let Some(mut reader) = stream.reader() else {
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return Ok(Value::bool(false, head).into_pipeline_data());
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};
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let cap = pattern.len();
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let mut end = VecDeque::<u8>::with_capacity(cap);
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loop {
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let buf = match reader.fill_buf() {
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Ok(&[]) => break,
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Ok(buf) => buf,
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Err(e) if e.kind() == io::ErrorKind::Interrupted => continue,
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Err(e) => return Err(e.into_spanned(span).into()),
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};
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let len = buf.len();
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if len >= cap {
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end.clear();
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end.extend(&buf[(len - cap)..])
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} else {
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let new_len = len + end.len();
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if new_len > cap {
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// The `drain` below will panic if `(new_len - cap) > end.len()`.
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// But this cannot happen since we know `len < cap` (as checked above):
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// (len + end.len() - cap) > end.len()
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// => (len - cap) > 0
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// => len > cap
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end.drain(..(new_len - cap));
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}
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end.extend(buf);
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}
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reader.consume(len);
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}
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Ok(Value::bool(end == pattern, head).into_pipeline_data())
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} else {
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let arg = Arguments {
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pattern,
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cell_paths,
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};
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operate(ends_with, arg, input, head, engine_state.ctrlc.clone())
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}
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}
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fn examples(&self) -> Vec<Example> {
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@ -1,5 +1,6 @@
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use nu_cmd_base::input_handler::{operate, CmdArgument};
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use nu_engine::command_prelude::*;
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use std::io::Read;
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struct Arguments {
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pattern: Vec<u8>,
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@ -53,20 +54,33 @@ impl Command for BytesStartsWith {
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call: &Call,
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input: PipelineData,
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) -> Result<PipelineData, ShellError> {
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let head = call.head;
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let pattern: Vec<u8> = call.req(engine_state, stack, 0)?;
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let cell_paths: Vec<CellPath> = call.rest(engine_state, stack, 1)?;
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let cell_paths = (!cell_paths.is_empty()).then_some(cell_paths);
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let arg = Arguments {
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pattern,
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cell_paths,
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};
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operate(
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starts_with,
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arg,
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input,
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call.head,
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engine_state.ctrlc.clone(),
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)
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if let PipelineData::ByteStream(stream, ..) = input {
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let span = stream.span();
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if pattern.is_empty() {
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return Ok(Value::bool(true, head).into_pipeline_data());
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}
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let Some(reader) = stream.reader() else {
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return Ok(Value::bool(false, head).into_pipeline_data());
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};
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let mut start = Vec::with_capacity(pattern.len());
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reader
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.take(pattern.len() as u64)
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.read_to_end(&mut start)
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.err_span(span)?;
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Ok(Value::bool(start == pattern, head).into_pipeline_data())
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} else {
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let arg = Arguments {
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pattern,
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cell_paths,
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};
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operate(starts_with, arg, input, head, engine_state.ctrlc.clone())
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}
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}
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fn examples(&self) -> Vec<Example> {
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|
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