From 1023399c5e20edac8710e9f19dc72b6a95fd257d Mon Sep 17 00:00:00 2001
From: Ethan P <eth-p+git@hidden.email>
Date: Mon, 17 Apr 2023 19:19:49 -0700
Subject: [PATCH] Remove hyperlink when wrapping lines

---
 src/printer.rs             | 11 +++++++----
 src/vscreen.rs             | 40 ++++++++++++++++++++++++++++++++++++--
 tests/integration_tests.rs |  2 +-
 3 files changed, 46 insertions(+), 7 deletions(-)

diff --git a/src/printer.rs b/src/printer.rs
index 6d495777..f413fdc3 100644
--- a/src/printer.rs
+++ b/src/printer.rs
@@ -598,12 +598,12 @@ impl<'a> Printer for InteractivePrinter<'a> {
                     match chunk {
                         // Regular text.
                         EscapeSequence::Text(text) => {
-                            let text = &*self.preprocess(text, &mut cursor_total);
+                            let text = self.preprocess(text, &mut cursor_total);
                             let text_trimmed = text.trim_end_matches(|c| c == '\r' || c == '\n');
 
                             write!(
                                 handle,
-                                "{}",
+                                "{}{}",
                                 as_terminal_escaped(
                                     style,
                                     &format!("{}{}", self.ansi_style, text_trimmed),
@@ -611,9 +611,11 @@ impl<'a> Printer for InteractivePrinter<'a> {
                                     colored_output,
                                     italics,
                                     background_color
-                                )
+                                ),
+                                self.ansi_style.to_reset_sequence(),
                             )?;
 
+                            // Pad the rest of the line.
                             if text.len() != text_trimmed.len() {
                                 if let Some(background_color) = background_color {
                                     let ansi_style = Style {
@@ -693,7 +695,7 @@ impl<'a> Printer for InteractivePrinter<'a> {
                                     // It wraps.
                                     write!(
                                         handle,
-                                        "{}\n{}",
+                                        "{}{}\n{}",
                                         as_terminal_escaped(
                                             style,
                                             &format!("{}{}", self.ansi_style, line_buf),
@@ -702,6 +704,7 @@ impl<'a> Printer for InteractivePrinter<'a> {
                                             self.config.use_italic_text,
                                             background_color
                                         ),
+                                        self.ansi_style.to_reset_sequence(),
                                         panel_wrap.clone().unwrap()
                                     )?;
 
diff --git a/src/vscreen.rs b/src/vscreen.rs
index 7e2b8cd1..c902d42b 100644
--- a/src/vscreen.rs
+++ b/src/vscreen.rs
@@ -23,6 +23,13 @@ impl AnsiStyle {
             }
         }
     }
+
+    pub fn to_reset_sequence(&mut self) -> String {
+        match &mut self.attributes {
+            Some(a) => a.to_reset_sequence(),
+            None => String::new(),
+        }
+    }
 }
 
 impl Display for AnsiStyle {
@@ -35,6 +42,8 @@ impl Display for AnsiStyle {
 }
 
 struct Attributes {
+    has_sgr_sequences: bool,
+
     foreground: String,
     background: String,
     underlined: String,
@@ -67,16 +76,18 @@ struct Attributes {
     strike: String,
 
     /// The hyperlink sequence.
-    /// FORMAT: \x1B]8;<ID>;<HREF>\e\\
+    /// FORMAT: \x1B]8;{ID};{URL}\e\\
     ///
     /// `\e\\` may be replaced with BEL `\x07`.
-    /// Setting both <ID> and <HREF> to an empty string represents no hyperlink.
+    /// Setting both {ID} and {URL} to an empty string represents no hyperlink.
     hyperlink: String,
 }
 
 impl Attributes {
     pub fn new() -> Self {
         Attributes {
+            has_sgr_sequences: false,
+
             foreground: "".to_owned(),
             background: "".to_owned(),
             underlined: "".to_owned(),
@@ -135,6 +146,8 @@ impl Attributes {
     }
 
     fn sgr_reset(&mut self) {
+        self.has_sgr_sequences = false;
+
         self.foreground.clear();
         self.background.clear();
         self.underlined.clear();
@@ -152,6 +165,7 @@ impl Attributes {
             .map(|p| p.parse::<u16>())
             .map(|p| p.unwrap_or(0)); // Treat errors as 0.
 
+        self.has_sgr_sequences = true;
         while let Some(p) = iter.next() {
             match p {
                 0 => self.sgr_reset(),
@@ -214,6 +228,28 @@ impl Attributes {
             _ => format!("\x1B[{}m", color),
         }
     }
+
+    /// Gets an ANSI escape sequence to reset all the known attributes.
+    pub fn to_reset_sequence(&self) -> String {
+        let mut buf = String::with_capacity(17);
+
+        // TODO: Enable me in a later pull request.
+        // if self.has_sgr_sequences {
+        //     buf.push_str("\x1B[m");
+        // }
+
+        if !self.hyperlink.is_empty() {
+            buf.push_str("\x1B]8;;\x1B\\"); // Disable hyperlink.
+        }
+
+        // TODO: Enable me in a later pull request.
+        // if !self.charset.is_empty() {
+        //     // https://espterm.github.io/docs/VT100%20escape%20codes.html
+        //     buf.push_str("\x1B(B\x1B)B"); // setusg0 and setusg1
+        // }
+
+        buf
+    }
 }
 
 impl Display for Attributes {
diff --git a/tests/integration_tests.rs b/tests/integration_tests.rs
index bb4c4668..ecc37ed7 100644
--- a/tests/integration_tests.rs
+++ b/tests/integration_tests.rs
@@ -1966,7 +1966,7 @@ fn ansi_hyperlink_emitted_when_wrapped() {
         .write_stdin("\x1B]8;;http://example.com/\x1B\\Hyperlinks..........Wrap across lines.\n")
         .assert()
         .success()
-        .stdout("\x1B]8;;http://example.com/\x1B\\\x1B]8;;http://example.com/\x1B\\Hyperlinks..........\n\x1B]8;;http://example.com/\x1B\\Wrap across lines.\n")
+        .stdout("\x1B]8;;http://example.com/\x1B\\\x1B]8;;http://example.com/\x1B\\Hyperlinks..........\x1B]8;;\x1B\\\n\x1B]8;;http://example.com/\x1B\\Wrap across lines.\n")
         // FIXME:                                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ should not be emitted twice.
         .stderr("");
 }