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Add trailing zero between dot and exponential (#7956)

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Closes https://github.com/astral-sh/ruff/issues/7952.
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Charlie Marsh 2023-10-15 21:42:00 -04:00 • committed by GitHub
parent 3d03e75a9d
commit aa6846c78c
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3 changed files with 43 additions and 5 deletions
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13
crates/ruff_python_formatter/src/expression/number.rs
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@ -142,7 +142,7 @@ fn normalize_floating_number(input: &str) -> Cow<str> {
let mut chars = input.char_indices();
let fraction_ends_with_dot = if let Some((index, '.')) = chars.next() {
let mut prev_char_is_dot = if let Some((index, '.')) = chars.next() {
// Add a leading `0` if `input` starts with `.`.
output.push('0');
output.push('.');
@ -155,8 +155,8 @@ fn normalize_floating_number(input: &str) -> Cow<str> {
loop {
match chars.next() {
Some((index, c @ ('e' | 'E'))) => {
if fraction_ends_with_dot {
// Add `0` if fraction part ends with `.`.
if prev_char_is_dot {
// Add `0` if the `e` immediately follows a `.` (e.g., `1.e1`).
output.push_str(&input[last_index..index]);
output.push('0');
last_index = index;
@ -177,9 +177,12 @@ fn normalize_floating_number(input: &str) -> Cow<str> {
break;
}
Some(_) => continue,
Some((_index, c)) => {
prev_char_is_dot = c == '.';
continue;
}
None => {
if input.ends_with('.') {
if prev_char_is_dot {
// Add `0` if fraction part ends with `.`.
output.push_str(&input[last_index..]);
output.push('0');