feat: add common default keybindings (#719)

* feat: add common default keybindings

* feat: add `WORD_SEPARATORS` to config as `word_chars`, as this is what *Zsh* calls it

* feat: add option for *Emacs* word jumping

* feat: scroll with `PageUp` and `PageDown`, cf #374

2 files changed, 27 insertions, 0 deletions

diff --git a/atuin-client/config.toml b/atuin-client/config.toml
index 0c9b4ede2..a3c255b61 100644
--- a/atuin-client/config.toml
+++ b/atuin-client/config.toml
@@ -38,6 +38,15 @@
 ## possible values: return-original, return-query
 # exit_mode = "return-original"
 
+## possible values: emacs, subl
+# word_jump_mode = "emacs"
+
+## characters that count as a part of a word
+# word_chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+
+## number of context lines to show when scrolling by pages
+# scroll_context_lines = 1
+
 ## prevent commands matching any of these regexes from being written to history.
 ## Note that these regular expressions are unanchored, i.e. if they don't start
 ## with ^ or end with $, they'll match anywhere in the command.
diff --git a/atuin-client/src/settings.rs b/atuin-client/src/settings.rs
index 6b642b789..bd47d5aa1 100644
--- a/atuin-client/src/settings.rs
+++ b/atuin-client/src/settings.rs
@@ -97,6 +97,15 @@ pub enum Style {
     Compact,
 }
 
+#[derive(Clone, Debug, Deserialize, Copy)]
+pub enum WordJumpMode {
+    #[serde(rename = "emacs")]
+    Emacs,
+
+    #[serde(rename = "subl")]
+    Subl,
+}
+
 #[derive(Clone, Debug, Deserialize)]
 pub struct Settings {
     pub dialect: Dialect,
@@ -114,6 +123,9 @@ pub struct Settings {
     pub shell_up_key_binding: bool,
     pub show_preview: bool,
     pub exit_mode: ExitMode,
+    pub word_jump_mode: WordJumpMode,
+    pub word_chars: String,
+    pub scroll_context_lines: usize,
     #[serde(with = "serde_regex", default = "RegexSet::empty")]
     pub history_filter: RegexSet,
 
@@ -300,6 +312,12 @@ impl Settings {
             .set_default("exit_mode", "return-original")?
             .set_default("session_token", "")?
             .set_default("style", "auto")?
+            .set_default("word_jump_mode", "emacs")?
+            .set_default(
+                "word_chars",
+                "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789",
+            )?
+            .set_default("scroll_context_lines", 1)?
             .add_source(
                 Environment::with_prefix("atuin")
                     .prefix_separator("_")