aboutsummaryrefslogtreecommitdiffstats
path: root/src/util/slice.rs
diff options
context:
space:
mode:
Diffstat (limited to 'src/util/slice.rs')
-rw-r--r--src/util/slice.rs47
1 files changed, 1 insertions, 46 deletions
diff --git a/src/util/slice.rs b/src/util/slice.rs
index 54524c3..0734d78 100644
--- a/src/util/slice.rs
+++ b/src/util/slice.rs
@@ -1,55 +1,10 @@
//! Deal with bytes.
use crate::event::{Event, Kind, Point};
-use crate::util::{
- classify_character::{classify_opt, Kind as CharacterKind},
- constant::TAB_SIZE,
-};
+use crate::util::constant::TAB_SIZE;
use alloc::string::String;
use core::str;
-/// Get a [`char`][] right before `index` in bytes (`&[u8]`).
-///
-/// In most cases, markdown operates on ASCII bytes.
-/// In a few cases, it is unicode aware, so we need to find an actual char.
-pub fn char_before_index(bytes: &[u8], index: usize) -> Option<char> {
- let start = if index < 4 { 0 } else { index - 4 };
- String::from_utf8_lossy(&bytes[start..index]).chars().last()
-}
-
-/// Get a [`char`][] right at `index` in bytes (`&[u8]`).
-///
-/// In most cases, markdown operates on ASCII bytes.
-/// In a few cases, it is unicode aware, so we need to find an actual char.
-pub fn char_after_index(bytes: &[u8], index: usize) -> Option<char> {
- let end = if index + 4 > bytes.len() {
- bytes.len()
- } else {
- index + 4
- };
- String::from_utf8_lossy(&bytes[index..end]).chars().next()
-}
-
-/// Classify a byte (or `char`).
-pub fn byte_to_kind(bytes: &[u8], index: usize) -> CharacterKind {
- if index == bytes.len() {
- CharacterKind::Whitespace
- } else {
- let byte = bytes[index];
- if byte.is_ascii_whitespace() {
- CharacterKind::Whitespace
- } else if byte.is_ascii_punctuation() {
- CharacterKind::Punctuation
- } else if byte.is_ascii_alphanumeric() {
- CharacterKind::Other
- } else {
- // Otherwise: seems to be an ASCII control, so it seems to be a
- // non-ASCII `char`.
- classify_opt(char_after_index(bytes, index))
- }
- }
-}
-
/// A range between two points.
#[derive(Debug)]
pub struct Position<'a> {