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ParamExpansion

Struct ParamExpansion 

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pub struct ParamExpansion {
    pub flags: Vec<ParamFlag>,
    pub length: bool,
    pub is_set_test: bool,
    pub name: CompactString,
    pub nested: Option<Box<ParamExpansion>>,
    pub subscript: Option<Subscript>,
    pub modifier: Option<ParamModifier>,
}
Expand description

Rich parameter expansion: ${(flags)#name[subscript]modifier}.

Follows the 14-field model from mvdan/sh: flags → length → nested → name → subscript → modifier.

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§flags: Vec<ParamFlag>

${(flags)name} — processing flags like (L), (U), (f), etc.

§length: bool

${#name} — length operator.

§is_set_test: bool

${+name} — is-set test.

§name: CompactString

The parameter name (or special: ?, $, #, *, @, digits).

§nested: Option<Box<ParamExpansion>>

${${inner}} — nested expansion (indirect).

§subscript: Option<Subscript>

${name[subscript]} — array subscript.

§modifier: Option<ParamModifier>

The operation to apply: default, trim, replace, case, substring, etc.

Trait Implementations§

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impl Clone for ParamExpansion

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fn clone(&self) -> ParamExpansion

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ParamExpansion

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl PartialEq for ParamExpansion

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fn eq(&self, other: &ParamExpansion) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for ParamExpansion

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.