Add support for suffixes in expression input

src/changelog.txt

@@ -1,4 +1,10 @@
 ---------------------------------------------------------------------------------------------------
+Version: 2.5.0
+Date: TBD
+  Minor Features:
+    - Add support for suffixes when using expression input (e.g. "1k" for 1 000 and "1M" for 1 000 000).
+      Following suffixes are supported: "k", "M", "G", "B" (all suffixes are case insensitive).
+---------------------------------------------------------------------------------------------------
 Version: 2.4.5
 Date: 2024-12-16
   Changes:

src/scripts/expression.lua

@@ -3,6 +3,17 @@ local ssub = string.sub
 
 local expr = {}
 
+local expr_vars = {
+  k = 1000,
+  K = 1000,
+  m = 1000000,
+  M = 1000000,
+  g = 1000000000,
+  G = 1000000000,
+  b = 1000000000,
+  B = 1000000000
+}
+
 --- @param input string?
 --- @param fallback number?
 --- @return number
@@ -15,7 +26,7 @@ function expr.parse(input, fallback)
     input = "0" .. input
   end
 
-  local success, result = pcall(helpers.evaluate_expression, input)
+  local success, result = pcall(helpers.evaluate_expression, input, expr_vars)
 
   if not success then
     log:warn("The given input '", input, "' could not be evaluated as a math expression: ", result)