diff options
Diffstat (limited to 'src/reader.rs')
| -rw-r--r-- | src/reader.rs | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/reader.rs b/src/reader.rs index 15b9224..3c39b16 100644 --- a/src/reader.rs +++ b/src/reader.rs @@ -30,6 +30,9 @@ pub trait Reader { /// the input stream and returns `true`. If not, it does nothing and returns `false`. // TODO: document a maximum s length that may be assumed (depends on longest named character reference ... which may change?) fn try_read_string(&mut self, s: &str, case_sensitive: bool) -> Result<bool, Self::Error>; + + /// Returns the number of bytes that the given character takes up in the current character encoding. + fn len_of_char_in_current_encoding(&self, c: char) -> usize; } /// An object that can be converted into a [`Reader`]. @@ -96,6 +99,10 @@ impl<'a> Reader for StringReader<'a> { Ok(false) } + + fn len_of_char_in_current_encoding(&self, c: char) -> usize { + c.len_utf8() + } } impl<'a> IntoReader<'a> for &'a str { @@ -248,6 +255,10 @@ impl<R: Read> Reader for BufReadReader<R> { Ok(true) } + + fn len_of_char_in_current_encoding(&self, c: char) -> usize { + c.len_utf8() + } } impl<'a, R: Read + 'a> IntoReader<'a> for BufReader<R> { |