From 6424011899c141a8ec3097d9b9c1ff16e16a9c92 Mon Sep 17 00:00:00 2001
From: Konstantin Nazarov <mail@knazarov.com>
Date: Sun, 10 Oct 2021 22:27:55 +0100
Subject: [PATCH] Add a simple calculator

---
 q-calc | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100755 q-calc

diff --git a/q-calc b/q-calc
new file mode 100755
index 0000000..e3ca40f
--- /dev/null
+++ b/q-calc
@@ -0,0 +1,33 @@
+#!/bin/bash
+
+calc() {
+	res="$(echo "$1" | bc 2>/dev/null)"
+	if [ "$res" == "" ]; then
+		res="-"
+	fi
+	echo "$res"
+}
+
+if [[ -z "$@" ]]; then
+	echo "^= .*$"
+elif [[ "$1" == "--hint" ]]; then
+	shift
+	echo "= "
+elif [[ "$1" == "--complete" ]]; then
+	shift
+	EXPR="$(echo "$@" | cut -d ' ' -f2-)"
+	RES="$(calc "$EXPR")"
+	echo "$RES = $EXPR -> $(calc "$EXPR")"
+elif [[ "$1" == "--preview" ]]; then
+	shift
+	echo "$1"
+elif [[ "$1" == "--run" ]]; then
+	shift
+	echo "$1"
+	echo "$1" | (nohup wl-copy -n 2>/dev/null &)
+elif [[ "$1" == "--cli" ]]; then
+	shift
+	calc "$(echo "$@" | cut -d ' ' -f2-)"
+else
+	echo "Unexpected arguments: $@"
+fi