Add regex scrollback buffer search

This adds a new regex search which allows searching the entire
scrollback and jumping between matches using the vi mode.

All visible matches should be highlighted unless their lines are
excessively long. This should help with performance since highlighting
is done during render time.

Fixes #1017.

1 files changed, 43 insertions, 13 deletions

diff --git a/alacritty.yml b/alacritty.yml
index 2fb3b59f..ed6feafc 100644
--- a/alacritty.yml
+++ b/alacritty.yml
@@ -176,28 +176,48 @@
 
   # Cursor colors
   #
-  # Colors which should be used to draw the terminal cursor. If these are
-  # unset, the cursor color will be the inverse of the cell color.
+  # Colors which should be used to draw the terminal cursor.
+  #
+  # Allowed values are CellForeground and CellBackground, which reference the
+  # affected cell, or hexadecimal colors like #ff00ff.
   #cursor:
-  #  text: '#000000'
-  #  cursor: '#ffffff'
+  #  text: CellBackground
+  #  cursor: CellForeground
 
   # Vi mode cursor colors
   #
-  # Colors for the cursor when the vi mode is active. If these are unset, the
-  # cursor color will be the inverse of the cell color.
+  # Colors for the cursor when the vi mode is active.
+  #
+  # Allowed values are CellForeground and CellBackground, which reference the
+  # affected cell, or hexadecimal colors like #ff00ff.
   #vi_mode_cursor:
-  #  text: '#000000'
-  #  cursor: '#ffffff'
+  #  text: CellBackground
+  #  cursor: CellForeground
 
   # Selection colors
   #
-  # Colors which should be used to draw the selection area. If selection
-  # background is unset, selection color will be the inverse of the cell colors.
-  # If only text is unset the cell text color will remain the same.
+  # Colors which should be used to draw the selection area.
+  #
+  # Allowed values are CellForeground and CellBackground, which reference the
+  # affected cell, or hexadecimal colors like #ff00ff.
   #selection:
-  #  text: '#eaeaea'
-  #  background: '#404040'
+  #  text: CellBackground
+  #  background: CellForeground
+
+  # Search colors
+  #
+  # Colors used for the search bar and match highlighting.
+  #
+  # Allowed values are CellForeground and CellBackground, which reference the
+  # affected cell, or hexadecimal colors like #ff00ff.
+  #search:
+  #  matches:
+  #    foreground: '#000000'
+  #    background: '#ffffff'
+  #
+  #  bar:
+  #    background: CellForeground
+  #    foreground: CellBackground
 
   # Normal colors
   #normal:
@@ -445,6 +465,8 @@
 # - `action`: Execute a predefined action
 #
 #   - ToggleViMode
+#   - Search
+#   - SearchReverse
 #   - Copy
 #   - Paste
 #   - PasteSelection
@@ -495,6 +517,10 @@
 #   - ToggleLineSelection
 #   - ToggleBlockSelection
 #   - ToggleSemanticSelection
+#   - SearchNext
+#   - SearchPrevious
+#   - SearchEndNext
+#   - SearchEndPrevious
 #
 #   (macOS only):
 #   - ToggleSimpleFullscreen: Enters fullscreen without occupying another space
@@ -595,6 +621,10 @@
   #- { key: W,      mods: Shift,         mode: Vi, action: WordRight               }
   #- { key: E,      mods: Shift,         mode: Vi, action: WordRightEnd            }
   #- { key: Key5,   mods: Shift,         mode: Vi, action: Bracket                 }
+  #- { key: Slash,                       mode: Vi, action: Search                  }
+  #- { key: Slash,  mods: Shift,         mode: Vi, action: SearchReverse           }
+  #- { key: N,                           mode: Vi, action: SearchNext              }
+  #- { key: N,      mods: Shift,         mode: Vi, action: SearchPrevious          }
 
   # (Windows, Linux, and BSD only)
   #- { key: V,        mods: Control|Shift,           action: Paste            }