Merge pull request #1920 from rhysd/issue-1919

Add `bat::PrettyPrinter::clear_highlights`

CHANGELOG.md

@@ -32,6 +32,7 @@
 ## `bat` as a library
 
 - Make `bat::PrettyPrinter::syntaxes()` iterate over new `bat::Syntax` struct instead of `&syntect::parsing::SyntaxReference`. See #2222 (@Enselic)
+- Clear highlights after printing, see #1919 and #1920 (@rhysd)
 
 
 # v0.21.0

src/pretty_printer.rs

@@ -263,8 +263,8 @@ impl<'a> PrettyPrinter<'a> {
     /// If you want to call 'print' multiple times, you have to call the appropriate
     /// input_* methods again.
     pub fn print(&mut self) -> Result<bool> {
-        self.config.highlighted_lines =
-            HighlightedLineRanges(LineRanges::from(self.highlighted_lines.clone()));
+        let highlight_lines = std::mem::take(&mut self.highlighted_lines);
+        self.config.highlighted_lines = HighlightedLineRanges(LineRanges::from(highlight_lines));
         self.config.term_width = self
             .term_width
             .unwrap_or_else(|| Term::stdout().size().1 as usize);