grammars : add assistant + update comments

examples/command/command.cpp

@@ -137,6 +137,7 @@ std::string transcribe(
     t_ms = 0;
 
     whisper_full_params wparams = whisper_full_default_params(WHISPER_SAMPLING_GREEDY);
+    //whisper_full_params wparams = whisper_full_default_params(WHISPER_SAMPLING_BEAM_SEARCH);
 
     wparams.print_progress   = false;
     wparams.print_special    = params.print_special;
@@ -149,9 +150,6 @@ std::string transcribe(
     wparams.language         = params.language.c_str();
     wparams.n_threads        = params.n_threads;
 
-    // disable fallback - seems not useful for command recognition
-    wparams.temperature_inc  = 0.00f;
-
     wparams.audio_ctx = params.audio_ctx;
     wparams.speed_up  = params.speed_up;
 

grammars/assistant.gbnf

@@ -0,0 +1,57 @@
+# - "turn on lights."
+# - "set thermostat to 22."
+# - "increase TV by 10."
+# - "decrease oven by 50."
+# - "play music."
+# - "stop podcast."
+# - "schedule cleaning at 3pm."
+# - "cancel cleaning."
+# - "remind me to buy milk at 5pm."
+# - "show me security system."
+# - "hide washing machine."
+# - "what is the lights status?"
+# - "what is the current thermostat value?"
+# - "what is the security system status?"
+# - "what is the door lock status?"
+# - "what is the camera battery level?"
+# - "what is the weather like today?"
+# - "what is the forecast for tomorrow?"
+# - "what is the time?"
+# - "what is my schedule for today?"
+# - "what tasks do I have?"
+# - "what reminders do I have?"
+#
+# example:
+#
+#   ./command -m ./models/ggml-base.en.bin -t 8 --grammar ./grammars/chess.gbnf --prompt "Ok Whisper, start listening for commands"
+#
+
+root   ::= init " " (command | question) "."
+prompt ::= init "."
+
+# leading space is very important!
+init ::= " Ok Whisper, start listening for commands"
+
+command ::= "Turn " ("on" | "off") " " device | "Set " device " to " value |
+            "Increase " device " by " value | "Decrease " device " by " value |
+            "Play " media | "Stop " media | "Schedule " task " at " time | "Cancel " task |
+            "Remind me to " task " at " time | "Show me " device | "Hide " device
+
+question ::= "What is the " device " status?" | "What is the current " device " value?" |
+             "What is the " device " temperature?" | "What is the " device " humidity?" |
+             "What is the " device " power consumption?" | "What is the " device " battery level?" |
+             "What is the weather like today?" | "What is the forecast for tomorrow?" |
+             "What is the time?" | "What is my schedule for today?" | "What tasks do I have?" |
+             "What reminders do I have?"
+
+device ::= "lights" | "thermostat" | "security system" | "door lock" | "camera" | "speaker" | "TV" |
+           "music player" | "coffee machine" | "oven" | "refrigerator" | "washing machine" |
+           "vacuum cleaner"
+
+value ::= [0-9]+
+
+media ::= "music" | "radio" | "podcast" | "audiobook" | "TV show" | "movie"
+
+task ::= [a-zA-Z]+ (" " [a-zA-Z]+)?
+
+time ::= [0-9] [0-9]? ":" [0-9] [0-9] ("am" | "pm")?

grammars/chess.gbnf

@@ -5,10 +5,6 @@
 # - c3 queen to d4 king b1
 # - pawn to a1 bishop to b2 knight to c3
 #
-# initial prompt:
-#
-#   "pawn to a1, bishop to b2, knight to c3, rook to d4, queen to e5, king to f6,"
-#
 # example:
 #
 #   ./command -m ./models/ggml-base.en.bin -t 8 --grammar ./grammars/chess.gbnf --prompt "pawn knight king a1 f5 h6"

grammars/colors.gbnf

@@ -6,10 +6,6 @@
 # - green red
 # - green blue green
 #
-# initial prompt:
-#
-#   "red green blue"
-#
 # example:
 #
 #   ./command -m ./models/ggml-base.en.bin -t 8 --grammar ./grammars/colors.gbnf --prompt "red green blue"