nushell/crates/nu-command/src/strings/str_/case/camel_case.rs

105 lines
3.1 KiB
Rust

use inflector::cases::camelcase::to_camel_case;
use nu_protocol::ast::Call;
use nu_protocol::engine::{Command, EngineState, Stack};
use nu_protocol::{
Category, Example, PipelineData, ShellError, Signature, Span, SyntaxShape, Value,
};
use crate::operate;
#[derive(Clone)]
pub struct SubCommand;
impl Command for SubCommand {
fn name(&self) -> &str {
"str camel-case"
}
fn signature(&self) -> Signature {
Signature::build("str camel-case")
.rest(
"rest",
SyntaxShape::CellPath,
"optionally convert text to camelCase by column paths",
)
.category(Category::Strings)
}
fn usage(&self) -> &str {
"Convert a string to camelCase"
}
fn search_terms(&self) -> Vec<&str> {
vec!["convert", "style", "caps", "convention"]
}
fn run(
&self,
engine_state: &EngineState,
stack: &mut Stack,
call: &Call,
input: PipelineData,
) -> Result<PipelineData, ShellError> {
operate(engine_state, stack, call, input, &to_camel_case)
}
fn examples(&self) -> Vec<Example> {
vec![
Example {
description: "convert a string to camelCase",
example: " 'NuShell' | str camel-case",
result: Some(Value::String {
val: "nuShell".to_string(),
span: Span::test_data(),
}),
},
Example {
description: "convert a string to camelCase",
example: "'this-is-the-first-case' | str camel-case",
result: Some(Value::String {
val: "thisIsTheFirstCase".to_string(),
span: Span::test_data(),
}),
},
Example {
description: "convert a string to camelCase",
example: " 'this_is_the_second_case' | str camel-case",
result: Some(Value::String {
val: "thisIsTheSecondCase".to_string(),
span: Span::test_data(),
}),
},
Example {
description: "convert a column from a table to camelCase",
example: r#"[[lang, gems]; [nu_test, 100]] | str camel-case lang"#,
result: Some(Value::List {
vals: vec![Value::Record {
span: Span::test_data(),
cols: vec!["lang".to_string(), "gems".to_string()],
vals: vec![
Value::String {
val: "nuTest".to_string(),
span: Span::test_data(),
},
Value::test_int(100),
],
}],
span: Span::test_data(),
}),
},
]
}
}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn test_examples() {
use crate::test_examples;
test_examples(SubCommand {})
}
}