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flags for find (#4663)

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Fernando Herrera 2022-02-27 11:17:13 +00:00 committed by GitHub
parent 799fa98411
commit 995757c055
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1 changed files with 40 additions and 4 deletions
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44
crates/nu-command/src/filters/find.rs
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@ -29,6 +29,22 @@ impl Command for Find {
"regex to match with",
Some('r'),
)
.switch(
"insensitive",
"case-insensitive search for regex (?i)",
Some('i'),
)
.switch(
"multiline",
"multi-line mode: ^ and $ match begin/end of line for regex (?m)",
Some('m'),
)
.switch(
"dotall",
"dotall mode: allow a dot . to match newline character \\n for regex (?s)",
Some('s'),
)
.switch("invert", "invert the match", Some('v'))
.rest("rest", SyntaxShape::Any, "terms to search")
.category(Category::Filters)
}
@ -94,7 +110,7 @@ impl Command for Find {
},
Example {
description: "Find using regex case insensitive",
example: r#"[aBc bde Arc abf] | find --regex "(?i)ab""#,
example: r#"[aBc bde Arc abf] | find --regex "ab" -i"#,
result: Some(Value::List {
vals: vec![Value::test_string("aBc".to_string()), Value::test_string("abf".to_string())],
span: Span::test_data()
@ -149,13 +165,31 @@ fn find_with_regex(
let ctrlc = engine_state.ctrlc.clone();
let config = stack.get_config()?;
let insensitive = call.has_flag("insensitive");
let multiline = call.has_flag("multiline");
let dotall = call.has_flag("dotall");
let invert = call.has_flag("invert");
let flags = match (insensitive, multiline, dotall) {
(false, false, false) => "",
(true, false, false) => "(?i)",
(false, true, false) => "(?m)",
(false, false, true) => "(?s)",
(true, true, false) => "(?im)",
(true, false, true) => "(?is)",
(false, true, true) => "(?ms)",
(true, true, true) => "(?ims)",
};
let regex = flags.to_string() + &regex;
let re = Regex::new(regex.as_str())
.map_err(|e| ShellError::UnsupportedInput(format!("incorrect regex: {}", e), span))?;
input.filter(
move |value| {
let string = value.into_string(" ", &config);
re.is_match(string.as_str())
re.is_match(string.as_str()) != invert
},
ctrlc,
)
@ -174,6 +208,7 @@ fn find_with_predicate(
let redirect_stdout = call.redirect_stdout;
let redirect_stderr = call.redirect_stderr;
let engine_state = engine_state.clone();
let invert = call.has_flag("invert");
let capture_block = predicate;
let block_id = capture_block.block_id;
@ -205,7 +240,7 @@ fn find_with_predicate(
redirect_stderr,
)
.map_or(false, |pipeline_data| {
pipeline_data.into_value(span).is_true()
pipeline_data.into_value(span).is_true() != invert
})
},
ctrlc,
@ -223,6 +258,7 @@ fn find_with_rest(
let metadata = input.metadata();
let engine_state = engine_state.clone();
let config = stack.get_config()?;
let invert = call.has_flag("invert");
let terms = call.rest::<Value>(&engine_state, stack, 0)?;
let lower_terms = terms
@ -277,7 +313,7 @@ fn find_with_rest(
}
}),
Value::Binary { .. } => false,
})
}) != invert
},
ctrlc,
)?;