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xso: offer is_xml_whitespace function

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This commit is contained in:
Jonas Schäfer 2024-08-09 14:48:58 +02:00
parent c63b554e9e
commit 6b4886857e
2 changed files with 11 additions and 1 deletions
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2
xso-proc/src/compound.rs
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@ -279,7 +279,7 @@ impl Compound {
None => quote! {
// note: u8::is_ascii_whitespace includes U+000C, which is not
// part of XML's white space definition.'
if #text.as_bytes().iter().any(|b| *b != b' ' && *b != b'\t' && *b != b'\r' && *b != b'\n') {
if !::xso::is_xml_whitespace(#text.as_bytes()) {
::core::result::Result::Err(::xso::error::Error::Other("Unexpected text content".into()))
} else {
::core::result::Result::Ok(::core::ops::ControlFlow::Break(

10
xso/src/lib.rs
View file

@ -419,3 +419,13 @@ pub fn from_bytes<T: FromXml>(mut buf: &[u8]) -> Result<T, self::error::Error> {
rxml::error::XmlError::InvalidEof("while parsing FromXml impl"),
))
}
/// Return true if the string contains exclusively XML whitespace.
///
/// XML whitespace is defined as U+0020 (space), U+0009 (tab), U+000a
/// (newline) and U+000d (carriage return).
pub fn is_xml_whitespace<T: AsRef<[u8]>>(s: T) -> bool {
s.as_ref()
.iter()
.all(|b| *b == b' ' || *b == b'\t' || *b == b'\r' || *b == b'\n')
}