Enum ParamModifier 

pub enum ParamModifier {
    Default {
        colon: bool,
        word: Box<Word>,
    },
    Assign {
        colon: bool,
        word: Box<Word>,
    },
    Alternative {
        colon: bool,
        word: Box<Word>,
    },
    Error {
        colon: bool,
        word: Box<Word>,
    },
    TrimPrefix {
        longest: bool,
        pattern: Box<Word>,
    },
    TrimSuffix {
        longest: bool,
        pattern: Box<Word>,
    },
    Substitute {
        anchor: SubAnchor,
        pattern: Box<Word>,
        replacement: Option<Box<Word>>,
    },
    Substring {
        offset: Box<Word>,
        length: Option<Box<Word>>,
    },
    Case(CaseOp),
}

Modifier operations on parameter values.

Variants

Default

${name:-word} or ${name-word} — use default.

Fields

colon: bool

word: Box<Word>

Assign

${name:=word} or ${name=word} — assign default.

Fields

colon: bool

word: Box<Word>

Alternative

${name:+word} or ${name+word} — use alternative.

Fields

colon: bool

word: Box<Word>

Error

${name:?word} or ${name?word} — error if unset.

Fields

colon: bool

word: Box<Word>

TrimPrefix

${name#pat} or ${name##pat} — remove prefix.

Fields

longest: bool

pattern: Box<Word>

TrimSuffix

${name%pat} or ${name%%pat} — remove suffix.

Fields

longest: bool

pattern: Box<Word>

Substitute

${name/pat/rep} or ${name//pat/rep} — substitution.

Fields

anchor: SubAnchor

pattern: Box<Word>

replacement: Option<Box<Word>>

Substring

${name:offset} or ${name:offset:length} — substring.

Fields

offset: Box<Word>

length: Option<Box<Word>>

Case(CaseOp)

${name^pat}, ${name^^pat}, ${name,pat}, ${name,,pat}.

Trait Implementations

impl Clone for ParamModifier

fn clone(&self) -> ParamModifier

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParamModifier

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

Formats the value using the given formatter.

impl PartialEq for ParamModifier

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ParamModifier