Enum Prim 

pub enum Prim {
    Boundary,
    NonWordBoundary,
    LineStart,
    LineEnd,
    Space,
    None_,
    AnyCharacter,
    Word,
    NotWord,
    Alpha,
    NotAlpha,
    Digit,
    NotDigit,
}

Zero-width and character-class primitives reachable from the ISC grammar (zw_primitive rule) plus the Stdlib aliases they resolve to. Values mirror Interscript::Stdlib::ALIASES.

Variants

Boundary

\b — Unicode-aware word boundary (Ruby \b is Unicode; \w is not).

NonWordBoundary

\B

LineStart

^ — beginning of line.

LineEnd

$ — end of line.

Space

“ “ — a literal space (not re-only).

None_

“none” — empty string (not re-only).

AnyCharacter

any_character — Ruby regex dot: any char except newline.

Word

\w — ASCII-only [A-Za-z0-9_].

NotWord

\W

Alpha

[a-zA-Z]

NotAlpha

[^a-zA-Z]

Digit

\d — ASCII-only [0-9].

NotDigit

\D

Implementations

impl Prim

pub fn from_name(name: &str) -> Option<Prim>

pub fn name(&self) -> &'static str

pub fn re_only(&self) -> bool

Interscript::Stdlib.re_only_alias? — can the primitive appear in a string / parallel (replacement) context? Only none/space.

pub fn matches_char(&self, ch: char) -> Option<bool>

Match as a character class at ch. None = zero-width (not a char matcher) or not applicable.

pub fn matches_zero_width(&self, chars: &[char], pos: usize) -> Option<bool>

Zero-width assertions return tri-state: Some(true/false) decided at a position, None when the primitive is a char matcher.

Trait Implementations

impl Clone for Prim

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Prim

impl Debug for Prim

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

Formats the value using the given formatter.

impl Eq for Prim

impl PartialEq for Prim

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Prim