Add `word_splitter` support

src/handler.rs

@@ -57,6 +57,7 @@ pub struct MietteHandlerOpts {
     pub(crate) with_cause_chain: Option<bool>,
     pub(crate) break_words: Option<bool>,
     pub(crate) word_separator: Option<textwrap::WordSeparator>,
+    pub(crate) word_splitter: Option<textwrap::WordSplitter>,
 }
 
 impl MietteHandlerOpts {
@@ -104,6 +105,11 @@ impl MietteHandlerOpts {
         self
     }
 
+    /// Sets the `textwrap::WordSplitter` to use when determining wrap points.
+    pub fn word_splitter(mut self, word_splitter: textwrap::WordSplitter) -> Self {
+        self.word_splitter = Some(word_splitter);
+        self
+    }
     /// Include the cause chain of the top-level error in the report.
     pub fn with_cause_chain(mut self) -> Self {
         self.with_cause_chain = Some(true);
@@ -257,6 +263,9 @@ impl MietteHandlerOpts {
             if let Some(s) = self.word_separator {
                 handler = handler.with_word_separator(s)
             }
+            if let Some(s) = self.word_splitter {
+                handler = handler.with_word_splitter(s)
+            }
 
             MietteHandler {
                 inner: Box::new(handler),

src/handlers/graphical.rs

@@ -32,6 +32,7 @@ pub struct GraphicalReportHandler {
     pub(crate) with_cause_chain: bool,
     pub(crate) break_words: bool,
     pub(crate) word_separator: Option<textwrap::WordSeparator>,
+    pub(crate) word_splitter: Option<textwrap::WordSplitter>,
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
@@ -55,6 +56,7 @@ impl GraphicalReportHandler {
             with_cause_chain: true,
             break_words: true,
             word_separator: None,
+            word_splitter: None,
         }
     }
 
@@ -70,6 +72,7 @@ impl GraphicalReportHandler {
             with_cause_chain: true,
             break_words: true,
             word_separator: None,
+            word_splitter: None,
         }
     }
 
@@ -134,12 +137,18 @@ impl GraphicalReportHandler {
         self
     }
 
-    /// Sets the word separator when wrapping.
+    /// Sets the word separator to use when wrapping.
     pub fn with_word_separator(mut self, word_separator: textwrap::WordSeparator) -> Self {
         self.word_separator = Some(word_separator);
         self
     }
 
+    /// Sets the word splitter to usewhen wrapping.
+    pub fn with_word_splitter(mut self, word_splitter: textwrap::WordSplitter) -> Self {
+        self.word_splitter = Some(word_splitter);
+        self
+    }
+
     /// Sets the 'global' footer for this handler.
     pub fn with_footer(mut self, footer: String) -> Self {
         self.footer = Some(footer);
@@ -184,6 +193,9 @@ impl GraphicalReportHandler {
             if let Some(word_separator) = self.word_separator {
                 opts = opts.word_separator(word_separator);
             }
+            if let Some(word_splitter) = self.word_splitter.clone() {
+                opts = opts.word_splitter(word_splitter);
+            }
 
             writeln!(f, "{}", textwrap::fill(footer, opts))?;
         }
@@ -242,6 +254,9 @@ impl GraphicalReportHandler {
         if let Some(word_separator) = self.word_separator {
             opts = opts.word_separator(word_separator);
         }
+        if let Some(word_splitter) = self.word_splitter.clone() {
+            opts = opts.word_splitter(word_splitter);
+        }
 
         writeln!(f, "{}", textwrap::fill(&diagnostic.to_string(), opts))?;
 
@@ -285,6 +300,9 @@ impl GraphicalReportHandler {
                 if let Some(word_separator) = self.word_separator {
                     opts = opts.word_separator(word_separator);
                 }
+                if let Some(word_splitter) = self.word_splitter.clone() {
+                    opts = opts.word_splitter(word_splitter);
+                }
 
                 match error {
                     ErrorKind::Diagnostic(diag) => {
@@ -319,6 +337,9 @@ impl GraphicalReportHandler {
             if let Some(word_separator) = self.word_separator {
                 opts = opts.word_separator(word_separator);
             }
+            if let Some(word_splitter) = self.word_splitter.clone() {
+                opts = opts.word_splitter(word_splitter);
+            }
 
             writeln!(f, "{}", textwrap::fill(&help.to_string(), opts))?;
         }