Migrate to Lua 5.4

data/core/bit.lua

@@ -0,0 +1,30 @@
+local bit = {}
+
+local LUA_NBITS = 32
+local ALLONES = (~(((~0) << (LUA_NBITS - 1)) << 1))
+
+local function trim(x)
+	return (x & ALLONES)
+end
+
+local function mask(n)
+	return (~((ALLONES << 1) << ((n) - 1)))
+end
+
+function bit.extract(n, field, width)
+	local r = trim(field)
+	local f = width
+	r = (r >> f) & mask(width)
+	return r
+end
+
+function bit.replace(n, v, field, width)
+	local r = trim(v);
+	local v = trim(field);
+	local f = width
+	local m = mask(width);
+	r = (r & ~(m << f)) | ((v & m) << f);
+	return r
+end
+
+return bit

data/core/commands/findreplace.lua

@@ -55,7 +55,7 @@ end
 local function find(label, search_fn)
   last_view, last_sel = core.active_view,
     { core.active_view.doc:get_selection() }
-  local text = last_view.doc:get_text(unpack(last_sel))
+  local text = last_view.doc:get_text(table.unpack(last_sel))
   found_expression = false
 
   core.command_view:set_text(text, true)

data/core/common.lua

@@ -42,7 +42,7 @@ end
 
 
 function common.distance(x1, y1, x2, y2)
-    return math.sqrt(math.pow(x2-x1, 2)+math.pow(y2-y1, 2))
+    return math.sqrt(((x2-x1) ^ 2)+((y2-y1) ^ 2))
 end
 
 

data/core/statusview.lua

@@ -124,7 +124,7 @@ function StatusView:get_items()
       col > config.line_limit and style.accent or style.text, "col: ", col,
       style.text,
       self.separator,
-      string.format("%d%%", line / #dv.doc.lines * 100),
+      string.format("%.f%%", line / #dv.doc.lines * 100),
     }, {
       style.text, indent_label, indent_size,
       style.dim, self.separator2, style.text,

data/core/tokenizer.lua

@@ -1,5 +1,6 @@
 local syntax = require "core.syntax"
 local common = require "core.common"
+local bit32 = require "core.bit"
 
 local tokenizer = {}