2 files changed, 47 insertions, 2 deletions
diff --git a/plugins/emotty/README.md b/plugins/emotty/README.md
new file mode 100644
index 000000000..ee571705a
--- /dev/null
+++ b/plugins/emotty/README.md
@@ -0,0 +1,39 @@
+# emotty plugin
+
+This plugin returns an emoji for the current $TTY number so it can be used
+in a prompt.
+
+To use it, add emotty to the plugins array in your zshrc file:
+```
+plugins=(... emotty)
+```
+
+**NOTE:** it requires the [emoji plugin](https://github.com/ohmyzsh/ohmyzsh/tree/master/plugins/emoji).
+
+## Usage
+
+The function `emotty` displays an emoji from the current character set (default: `emoji`), based
+on the number associated to the `$TTY`.
+
+There are different sets of emoji characters available, to choose a different
+set, set `$emotty_set` to the name of the set you would like to use, e.g.:
+```
+emotty_set=nature
+```
+
+### Character Sets
+
+- emoji
+- loral
+- love
+- nature
+- stellar
+- zodiac
+
+Use the `display_emotty` function to list the emojis in the current character set, or
+the character set passed as the first argument. For example:
+
+```
+$ display_emotty zodiac
+<list of all the emojis in the zodiac character set>
+```
diff --git a/plugins/emotty/emotty.plugin.zsh b/plugins/emotty/emotty.plugin.zsh
index b0d24c322..e288b5cfb 100644
--- a/plugins/emotty/emotty.plugin.zsh
+++ b/plugins/emotty/emotty.plugin.zsh
@@ -25,8 +25,14 @@ emotty_default_set=emoji
 function emotty() {
   # Use emotty set defined by user, fallback to default
   local emotty=${_emotty_sets[${emotty_set:-$emotty_default_set}]}
-  # Parse $TTY number, normalizing it to an emotty set index
-  (( tty = (${TTY##/dev/tty} % ${#${=emotty}}) + 1 ))
+
+  # Parse tty number via prompt expansion. %l equals:
+  # - N      if tty = /dev/ttyN
+  # - pts/N  if tty = /dev/pts/N
+  local tty = ${${(%):-%l}##pts/}
+  # Normalize it to an emotty set index
+  (( tty = (tty % ${#${=emotty}}) + 1 ))
+
   local character_name=${${=emotty}[tty]}
   echo "${emoji[${character_name}]}${emoji2[emoji_style]}"
 }