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style(typos): Make parser ordering clearer

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Ed Page 2020-12-28 21:45:19 -06:00
parent f103296a8c
commit 7fdd0dee16
1 changed files with 56 additions and 56 deletions
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112
crates/typos/src/tokens.rs
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@ -1,11 +1,3 @@
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum Case {
Title,
Lower,
Scream,
None,
}
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct ParserBuilder {
ignore_hex: bool,
@ -237,52 +229,8 @@ impl<'t> Word<'t> {
}
}
/// Tracks the current 'mode' of the transformation algorithm as it scans the input string.
///
/// The mode is a tri-state which tracks the case of the last cased character of the current
/// word. If there is no cased character (either lowercase or uppercase) since the previous
/// word boundary, than the mode is `Boundary`. If the last cased character is lowercase, then
/// the mode is `Lowercase`. Otherrwise, the mode is `Uppercase`.
#[derive(Clone, Copy, PartialEq, Debug)]
enum WordMode {
/// There have been no lowercase or uppercase characters in the current word.
Boundary,
/// The previous cased character in the current word is lowercase.
Lowercase,
/// The previous cased character in the current word is uppercase.
Uppercase,
Number,
}
impl WordMode {
fn classify(c: char) -> Self {
if c.is_lowercase() {
WordMode::Lowercase
} else if c.is_uppercase() {
WordMode::Uppercase
} else if c.is_ascii_digit() {
WordMode::Number
} else {
// This assumes all characters are either lower or upper case.
WordMode::Boundary
}
}
fn case(self, last: WordMode) -> Case {
match (self, last) {
(WordMode::Uppercase, WordMode::Uppercase) => Case::Scream,
(WordMode::Uppercase, WordMode::Lowercase) => Case::Title,
(WordMode::Lowercase, WordMode::Lowercase) => Case::Lower,
(WordMode::Number, WordMode::Number) => Case::None,
(WordMode::Number, _)
| (_, WordMode::Number)
| (WordMode::Boundary, _)
| (_, WordMode::Boundary)
| (WordMode::Lowercase, WordMode::Uppercase) => {
unreachable!("Invalid case combination: ({:?}, {:?})", self, last)
}
}
}
fn split_ident(ident: &str, offset: usize) -> impl Iterator<Item = Word<'_>> {
SplitIdent::new(ident, offset)
}
struct SplitIdent<'s> {
@ -377,8 +325,60 @@ impl<'s> Iterator for SplitIdent<'s> {
}
}
fn split_ident(ident: &str, offset: usize) -> impl Iterator<Item = Word<'_>> {
SplitIdent::new(ident, offset)
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum Case {
Title,
Lower,
Scream,
None,
}
/// Tracks the current 'mode' of the transformation algorithm as it scans the input string.
///
/// The mode is a tri-state which tracks the case of the last cased character of the current
/// word. If there is no cased character (either lowercase or uppercase) since the previous
/// word boundary, than the mode is `Boundary`. If the last cased character is lowercase, then
/// the mode is `Lowercase`. Otherrwise, the mode is `Uppercase`.
#[derive(Clone, Copy, PartialEq, Debug)]
enum WordMode {
/// There have been no lowercase or uppercase characters in the current word.
Boundary,
/// The previous cased character in the current word is lowercase.
Lowercase,
/// The previous cased character in the current word is uppercase.
Uppercase,
Number,
}
impl WordMode {
fn classify(c: char) -> Self {
if c.is_lowercase() {
WordMode::Lowercase
} else if c.is_uppercase() {
WordMode::Uppercase
} else if c.is_ascii_digit() {
WordMode::Number
} else {
// This assumes all characters are either lower or upper case.
WordMode::Boundary
}
}
fn case(self, last: WordMode) -> Case {
match (self, last) {
(WordMode::Uppercase, WordMode::Uppercase) => Case::Scream,
(WordMode::Uppercase, WordMode::Lowercase) => Case::Title,
(WordMode::Lowercase, WordMode::Lowercase) => Case::Lower,
(WordMode::Number, WordMode::Number) => Case::None,
(WordMode::Number, _)
| (_, WordMode::Number)
| (WordMode::Boundary, _)
| (_, WordMode::Boundary)
| (WordMode::Lowercase, WordMode::Uppercase) => {
unreachable!("Invalid case combination: ({:?}, {:?})", self, last)
}
}
}
}
#[cfg(test)]