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-rw-r--r--src/util/classify_character.rs72
1 files changed, 0 insertions, 72 deletions
diff --git a/src/util/classify_character.rs b/src/util/classify_character.rs
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index 79ed46a..0000000
--- a/src/util/classify_character.rs
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-//! Utilities to classify characters as whitespace, punctuation, or rest.
-
-use crate::util::unicode::PUNCTUATION;
-
-/// Character kinds.
-#[derive(Debug, PartialEq, Eq)]
-pub enum Kind {
- /// Whitespace.
- ///
- /// ## Example
- ///
- /// ```markdown
- /// > | **a_b_ c**.
- /// ^ ^ ^
- /// ```
- Whitespace,
- /// Punctuation.
- ///
- /// ## Example
- ///
- /// ```markdown
- /// > | **a_b_ c**.
- /// ^^ ^ ^ ^
- /// ```
- Punctuation,
- /// Everything else.
- ///
- /// ## Example
- ///
- /// ```markdown
- /// > | **a_b_ c**.
- /// ^ ^ ^
- /// ```
- Other,
-}
-
-/// Classify whether a character code represents whitespace, punctuation, or
-/// something else.
-///
-/// Used for attention (emphasis, strong), whose sequences can open or close
-/// based on the class of surrounding characters.
-///
-/// > 👉 **Note** that eof (`None`) is seen as whitespace.
-///
-/// ## References
-///
-/// * [`micromark-util-classify-character` in `micromark`](https://github.com/micromark/micromark/blob/main/packages/micromark-util-classify-character/dev/index.js)
-pub fn classify(char: char) -> Kind {
- // Unicode whitespace.
- if char.is_whitespace() {
- Kind::Whitespace
- }
- // Unicode punctuation.
- else if PUNCTUATION.contains(&char) {
- Kind::Punctuation
- }
- // Everything else.
- else {
- Kind::Other
- }
-}
-
-/// Like [`classify`], but supports eof as whitespace.
-pub fn classify_opt(char_opt: Option<char>) -> Kind {
- if let Some(char) = char_opt {
- classify(char)
- }
- // EOF.
- else {
- Kind::Whitespace
- }
-}