feat(hyperlink): Add editor-specific links

crates/anstyle-hyperlink/src/file.rs

@@ -20,30 +20,12 @@ pub fn path_to_url(path: &std::path::Path) -> Option<String> {
 /// the computer you've SSH'ed into
 /// ([reference](https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda#file-uris-and-the-hostname))
 pub fn file_to_url(hostname: Option<&str>, path: &std::path::Path) -> Option<String> {
-    if !path.is_absolute() {
-        return None;
-    }
-
     let mut url = "file://".to_owned();
     if let Some(hostname) = hostname {
         url.push_str(hostname);
     }
 
-    // skip the root component
-    let mut is_path_empty = true;
-    for component in path.components().skip(1) {
-        is_path_empty = false;
-        url.push_str(URL_PATH_SEP);
-        let component = component.as_os_str().to_str()?;
-        url.extend(percent_encoding::percent_encode(
-            component.as_bytes(),
-            SPECIAL_PATH_SEGMENT,
-        ));
-    }
-    if is_path_empty {
-        // An URL's path must not be empty
-        url.push_str(URL_PATH_SEP);
-    }
+    encode_path(path, &mut url);
 
     Some(url)
 }
@@ -79,3 +61,238 @@ const PATH_SEGMENT: &percent_encoding::AsciiSet = &PATH.add(b'/').add(b'%');
 // The backslash (\) character is treated as a path separator in special URLs
 // so it needs to be additionally escaped in that case.
 const SPECIAL_PATH_SEGMENT: &percent_encoding::AsciiSet = &PATH_SEGMENT.add(b'\\');
+
+/// Editor-specific file URLs
+#[allow(missing_docs)]
+#[derive(Copy, Clone, Debug, Eq, PartialEq)]
+#[non_exhaustive]
+pub enum Editor {
+    Cursor,
+    Grepp,
+    Kitty,
+    MacVim,
+    TextMate,
+    VSCode,
+    VSCodeInsiders,
+    VSCodium,
+}
+
+impl Editor {
+    /// Iterate over all supported editors.
+    pub fn all() -> impl Iterator<Item = Self> {
+        [
+            Self::Cursor,
+            Self::Grepp,
+            Self::Kitty,
+            Self::MacVim,
+            Self::TextMate,
+            Self::VSCode,
+            Self::VSCodeInsiders,
+            Self::VSCodium,
+        ]
+        .into_iter()
+    }
+
+    /// Create an editor-specific file URL
+    pub fn to_url(
+        &self,
+        hostname: Option<&str>,
+        file: &std::path::Path,
+        line: usize,
+        col: usize,
+    ) -> Option<String> {
+        let mut path = String::new();
+        encode_path(file, &mut path);
+        let url = match self {
+            Self::Cursor => {
+                format!("cursor://file{path}:{line}:{col}")
+            }
+            // https://github.com/misaki-web/grepp?tab=readme-ov-file#scheme-handler
+            Self::Grepp => format!("grep+://{path}:{line}"),
+            Self::Kitty => format!("file://{}{path}#{line}", hostname.unwrap_or_default()),
+            // https://macvim.org/docs/gui_mac.txt.html#mvim%3A%2F%2F
+            Self::MacVim => {
+                format!("mvim://open?url=file://{path}&line={line}&column={col}")
+            }
+            // https://macromates.com/blog/2007/the-textmate-url-scheme/
+            Self::TextMate => {
+                format!("txmt://open?url=file://{path}&line={line}&column={col}")
+            }
+            // https://code.visualstudio.com/docs/editor/command-line#_opening-vs-code-with-urls
+            Self::VSCode => format!("vscode://file{path}:{line}:{col}"),
+            Self::VSCodeInsiders => {
+                format!("vscode-insiders://file{path}:{line}:{col}")
+            }
+            Self::VSCodium => format!("vscodium://file{path}:{line}:{col}"),
+        };
+        Some(url)
+    }
+}
+
+impl core::fmt::Display for Editor {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+        let name = match self {
+            Self::Cursor => "cursor",
+            Self::Grepp => "grepp",
+            Self::Kitty => "kitty",
+            Self::MacVim => "macvim",
+            Self::TextMate => "textmate",
+            Self::VSCode => "vscode",
+            Self::VSCodeInsiders => "vscode-insiders",
+            Self::VSCodium => "vscodium",
+        };
+        f.write_str(name)
+    }
+}
+
+impl core::str::FromStr for Editor {
+    type Err = ParseEditorError;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        match s {
+            "cursor" => Ok(Self::Cursor),
+            "grepp" => Ok(Self::Grepp),
+            "kitty" => Ok(Self::Kitty),
+            "macvim" => Ok(Self::MacVim),
+            "textmate" => Ok(Self::TextMate),
+            "vscode" => Ok(Self::VSCode),
+            "vscode-insiders" => Ok(Self::VSCodeInsiders),
+            "vscodium" => Ok(Self::VSCodium),
+            _ => Err(ParseEditorError),
+        }
+    }
+}
+
+/// Failed to parse an [`Editor`] from a string.
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+pub struct ParseEditorError;
+
+impl core::fmt::Display for ParseEditorError {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+        f.write_str("unknown editor")
+    }
+}
+
+fn encode_path(path: &std::path::Path, url: &mut String) {
+    let mut is_path_empty = true;
+
+    for component in path.components() {
+        is_path_empty = false;
+        match component {
+            std::path::Component::Prefix(prefix) => {
+                url.push_str(URL_PATH_SEP);
+                let component = prefix.as_os_str().to_string_lossy();
+                url.push_str(&component);
+            }
+            std::path::Component::RootDir => {}
+            std::path::Component::CurDir => {}
+            std::path::Component::ParentDir => {
+                url.push_str(URL_PATH_SEP);
+                url.push_str("..");
+            }
+            std::path::Component::Normal(part) => {
+                url.push_str(URL_PATH_SEP);
+                let component = part.to_string_lossy();
+                url.extend(percent_encoding::percent_encode(
+                    component.as_bytes(),
+                    SPECIAL_PATH_SEGMENT,
+                ));
+            }
+        }
+    }
+    if is_path_empty {
+        // An URL's path must not be empty
+        url.push_str(URL_PATH_SEP);
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn funky_file_path() {
+        let editor_urls = Editor::all()
+            .map(|editor| editor.to_url(None, "/tmp/a b#c".as_ref(), 1, 1))
+            .map(|editor| editor.unwrap_or_else(|| "-".to_owned()))
+            .collect::<Vec<_>>()
+            .join("\n");
+
+        snapbox::assert_data_eq!(
+            editor_urls,
+            snapbox::str![[r#"
+cursor://file/tmp/a%20b%23c:1:1
+grep+:///tmp/a%20b%23c:1
+file:///tmp/a%20b%23c#1
+mvim://open?url=file:///tmp/a%20b%23c&line=1&column=1
+txmt://open?url=file:///tmp/a%20b%23c&line=1&column=1
+vscode://file/tmp/a%20b%23c:1:1
+vscode-insiders://file/tmp/a%20b%23c:1:1
+vscodium://file/tmp/a%20b%23c:1:1
+"#]]
+        );
+    }
+
+    #[test]
+    fn with_hostname() {
+        let editor_urls = Editor::all()
+            .map(|editor| editor.to_url(Some("localhost"), "/home/foo/file.txt".as_ref(), 1, 1))
+            .map(|editor| editor.unwrap_or_else(|| "-".to_owned()))
+            .collect::<Vec<_>>()
+            .join("\n");
+
+        snapbox::assert_data_eq!(
+            editor_urls,
+            snapbox::str![[r#"
+cursor://file/home/foo/file.txt:1:1
+grep+:///home/foo/file.txt:1
+file://localhost/home/foo/file.txt#1
+mvim://open?url=file:///home/foo/file.txt&line=1&column=1
+txmt://open?url=file:///home/foo/file.txt&line=1&column=1
+vscode://file/home/foo/file.txt:1:1
+vscode-insiders://file/home/foo/file.txt:1:1
+vscodium://file/home/foo/file.txt:1:1
+"#]]
+        );
+    }
+
+    #[test]
+    #[cfg(windows)]
+    fn windows_file_path() {
+        let editor_urls = Editor::all()
+            .map(|editor| editor.to_url(None, "C:\\Users\\foo\\help.txt".as_ref(), 1, 1))
+            .map(|editor| editor.unwrap_or_else(|| "-".to_owned()))
+            .collect::<Vec<_>>()
+            .join("\n");
+
+        snapbox::assert_data_eq!(
+            editor_urls,
+            snapbox::str![[r#"
+cursor://file/C:/Users/foo/help.txt:1:1
+grep+:///C:/Users/foo/help.txt:1
+file:///C:/Users/foo/help.txt#1
+mvim://open?url=file:///C:/Users/foo/help.txt&line=1&column=1
+txmt://open?url=file:///C:/Users/foo/help.txt&line=1&column=1
+vscode://file/C:/Users/foo/help.txt:1:1
+vscode-insiders://file/C:/Users/foo/help.txt:1:1
+vscodium://file/C:/Users/foo/help.txt:1:1
+"#]]
+        );
+    }
+
+    #[test]
+    fn editor_strings_round_trip() {
+        let editors = Editor::all().collect::<Vec<_>>();
+        let parsed = editors
+            .iter()
+            .map(|editor| editor.to_string().parse())
+            .collect::<Result<Vec<_>, _>>();
+
+        assert_eq!(parsed, Ok(editors));
+    }
+
+    #[test]
+    fn invalid_editor_string_errors() {
+        assert_eq!("code".parse::<Editor>(), Err(ParseEditorError));
+    }
+}

crates/anstyle-hyperlink/src/lib.rs

@@ -26,6 +26,10 @@ pub use file::file_to_url;
 #[cfg(feature = "file")]
 pub use file::path_to_url;
 #[cfg(feature = "file")]
+pub use file::Editor;
+#[cfg(feature = "file")]
+pub use file::ParseEditorError;
+#[cfg(feature = "file")]
 pub use hostname::hostname;
 pub use hyperlink::Hyperlink;