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HighlightingAssets::get_extension_syntax(): Split up into smaller methods 

To make the code easier to understand and change.
This commit is contained in:
Martin Nordholts 2021-07-27 18:53:28 +02:00
parent ccf4563573
commit c0e09662b4
1 changed files with 34 additions and 21 deletions
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55
src/assets.rs
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@ -251,29 +251,42 @@ impl HighlightingAssets {
}
fn get_extension_syntax(&self, file_name: &OsStr) -> Option<&SyntaxReference> {
self.find_syntax_by_file_name(file_name).or_else(|| {
self.find_syntax_by_file_name_extension(file_name)
.or_else(|| self.get_extension_syntax_with_stripped_suffix(file_name))
})
}
fn find_syntax_by_file_name(&self, file_name: &OsStr) -> Option<&SyntaxReference> {
self.get_syntax_set()
.find_syntax_by_extension(file_name.to_str().unwrap_or_default())
.or_else(|| {
let file_path = Path::new(file_name);
self.get_syntax_set()
.find_syntax_by_extension(
file_path
.extension()
.and_then(|x| x.to_str())
.unwrap_or_default(),
)
.or_else(|| {
if let Some(file_str) = file_path.to_str() {
for suffix in IGNORED_SUFFIXES.iter() {
if let Some(stripped_filename) = file_str.strip_suffix(suffix) {
return self
.get_extension_syntax(OsStr::new(stripped_filename));
}
}
}
None
})
})
}
fn find_syntax_by_file_name_extension(&self, file_name: &OsStr) -> Option<&SyntaxReference> {
let file_path = Path::new(file_name);
self.get_syntax_set().find_syntax_by_extension(
file_path
.extension()
.and_then(|x| x.to_str())
.unwrap_or_default(),
)
}
/// If we find an ignored suffix on the file name, e.g. '~', we strip it and
/// then try again to find a syntax without it. Note that we do this recursively.
fn get_extension_syntax_with_stripped_suffix(
&self,
file_name: &OsStr,
) -> Option<&SyntaxReference> {
let file_path = Path::new(file_name);
if let Some(file_str) = file_path.to_str() {
for suffix in IGNORED_SUFFIXES.iter() {
if let Some(stripped_filename) = file_str.strip_suffix(suffix) {
return self.get_extension_syntax(OsStr::new(stripped_filename));
}
}
}
None
}
fn get_first_line_syntax(&self, reader: &mut InputReader) -> Option<&SyntaxReference> {