Fix #252 on macOS.

src/context/macos.rs

@@ -194,6 +194,7 @@ extern fn keypress_callback(_self: *mut c_void, raw_buffer: *const u8, len: i32,
                 0x3B => Some(LEFT_CTRL),
                 0x3E => Some(RIGHT_CTRL),
                 0x33 => Some(BACKSPACE),
+                0x39 => Some(CAPS_LOCK),
                 _ => None,
             };
 

src/event/mod.rs

@@ -79,6 +79,9 @@ pub enum KeyModifier {
     RIGHT_META,
     LEFT_SHIFT,
     RIGHT_SHIFT,
+
+    // Special cases, should not be used in config
+    CAPS_LOCK,
 }
 
 impl KeyModifier {

src/matcher/scrolling.rs

@@ -21,7 +21,7 @@ use crate::matcher::{Match, MatchReceiver, TriggerEntry};
 use std::cell::{RefCell};
 use crate::event::{KeyModifier, ActionEventReceiver, ActionType};
 use crate::config::ConfigManager;
-use crate::event::KeyModifier::BACKSPACE;
+use crate::event::KeyModifier::{BACKSPACE, LEFT_SHIFT, RIGHT_SHIFT, CAPS_LOCK};
 use std::time::SystemTime;
 use std::collections::VecDeque;
 
@@ -237,9 +237,11 @@ impl <'a, R: MatchReceiver, M: ConfigManager<'a>> super::Matcher for ScrollingMa
         }
 
         // Consider modifiers as separators to improve word matches reliability
+        if m != LEFT_SHIFT && m != RIGHT_SHIFT && m != CAPS_LOCK {
             let mut was_previous_char_word_separator = self.was_previous_char_word_separator.borrow_mut();
             *was_previous_char_word_separator = true;
         }
+    }
 
     fn handle_other(&self) {
         // When receiving "other" type of events, we mark them as valid separators.