Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Add proper underscore handling to float and complex types. #5356

Merged
merged 10 commits into from
Jul 28, 2024
Merged

Add proper underscore handling to float and complex types. #5356

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
10 commits
Select commit Hold shift + click to select a range
9310bda
add proper underscore handling to float parsing
dannasman Jul 18, 2024
0af3f61
change function naming, add comments
dannasman Jul 18, 2024
4410d64
remove expected failure decorators
dannasman Jul 18, 2024
221cf27
cosmetic changes
dannasman Jul 18, 2024
7d5641e
fix formatting
dannasman Jul 18, 2024
cffaa56
update complex.rs and float.rs
dannasman Jul 23, 2024
a41fb5e
remove all earlier changes in complex.rs and float.rs
dannasman Jul 23, 2024
3978585
remove all earlier changes in complex.rs and float.rs
dannasman Jul 23, 2024
531977f
remove all earlier changes in complex.rs and float.rs
dannasman Jul 23, 2024
4ba0c74
upgrade parser
youknowone Jul 28, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
Prev Previous commit
Next Next commit
update complex.rs and float.rs
  • Loading branch information
@dannasman
dannasman committed Jul 23, 2024
commit cffaa569daf379ee6b7ddf110a14f29d40536b63
9 changes: 3 additions & 6 deletions vm/src/builtins/complex.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -546,16 +546,14 @@ fn parse_str(s: &str) -> Option<Complex64> {

let value = match s.strip_suffix(|c| c == 'j' || c == 'J') {
None => {
let stripped = float::float_strip_underscores(s.as_bytes())?;
Complex64::new(crate::literal::float::parse_bytes(&stripped)?, 0.0)
Complex64::new(crate::literal::float::parse_str(s)?, 0.0)
}
Some(mut s) => {
let mut real = 0.0;
// Find the central +/- operator. If it exists, parse the real part.
for (i, w) in s.as_bytes().windows(2).enumerate() {
if (w[1] == b'+' || w[1] == b'-') && !(w[0] == b'e' || w[0] == b'E') {
let stripped = float::float_strip_underscores(s[..=i].as_bytes())?;
real = crate::literal::float::parse_bytes(&stripped)?;
real = crate::literal::float::parse_str(&s[..=i])?;
s = &s[i + 1..];
break;
}
Expand All @@ -567,8 +565,7 @@ fn parse_str(s: &str) -> Option<Complex64> {
// "-j"
"-" => -1.0,
s => {
let stripped = float::float_strip_underscores(s.as_bytes())?;
crate::literal::float::parse_bytes(&stripped)?
crate::literal::float::parse_str(s)?
}
};
Complex64::new(real, imag)
Expand Down
42 changes: 3 additions & 39 deletions vm/src/builtins/float.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -159,33 +159,6 @@ impl Constructor for PyFloat {
}
}

pub fn float_strip_underscores(b: &[u8]) -> Option<Vec<u8>> {
let mut prev = b'\0';
let mut dup = Vec::<u8>::new();
for p in b {
if *p == b'_' {
// Underscores are only allowed after digits.
if !prev.is_ascii_digit() {
return None;
}
} else {
dup.push(*p);
// Underscores are only allowed before digits.
if prev == b'_' && !p.is_ascii_digit() {
return None;
}
}
prev = *p;
}

// Underscores are not allowed at the end.
if prev == b'_' {
return None;
}

Some(dup)
}

fn float_from_string(val: PyObjectRef, vm: &VirtualMachine) -> PyResult<f64> {
let (bytearray, buffer, buffer_lock);
let b = if let Some(s) = val.payload_if_subclass::<PyStr>(vm) {
Expand All @@ -206,18 +179,9 @@ fn float_from_string(val: PyObjectRef, vm: &VirtualMachine) -> PyResult<f64> {
)));
};

let err = val
.repr(vm)
.map(|repr| vm.new_value_error(format!("could not convert string to float: {repr}")))
.unwrap_or_else(|e| e);

if !b.contains(&b'_') {
crate::literal::float::parse_bytes(b).ok_or(err)
} else if let Some(dup) = float_strip_underscores(b) {
crate::literal::float::parse_bytes(&dup).ok_or(err)
} else {
Err(err)
}
crate::literal::float::parse_bytes(b).ok_or(val.repr(vm)
.map(|repr| vm.new_value_error(format!("could not convert string to float: {repr}")))
.unwrap_or_else(|e| e))
}

#[pyclass(
Expand Down
Loading