ENH update to lua 5.3

drawing/Memory.lua

@@ -148,7 +148,7 @@ local update = function(cr)
 	local used_percent = (MEM_TOTAL_KB - memfree_kb - cached_kb - buffers_kb - slab_reclaimable_kb) / MEM_TOTAL_KB
 
 	Dial.set(dial, used_percent)
-	CriticalText.set(total_used, cr, Util.round(used_percent * 100))
+	CriticalText.set(total_used, cr, Util.round_to_string(used_percent * 100))
 
 	local cache_theta = (DIAL_THETA_0 - DIAL_THETA_1) / MEM_TOTAL_KB * memfree_kb + DIAL_THETA_1
 	__cairo_path_destroy(cache_arc.path)

drawing/Processor.lua

@@ -9,6 +9,8 @@ local LabelPlot		= require 'LabelPlot'
 local Table			= require 'Table'
 local Util			= require 'Util'
 
+local __string_format = string.format
+
 local CORETEMP_PATH = '/sys/devices/platform/coretemp.0/hwmon/hwmon%i/%s'
 
 local NUM_PHYSICAL_CORES = 4
@@ -28,7 +30,6 @@ local _MODULE_Y_ = 614
 local _DIAL_INNER_RADIUS_ = 30
 local _DIAL_OUTER_RADIUS_ = 42
 local _DIAL_SPACING_ = 1
-local _TEXT_Y_OFFSET_ = 15
 local _SEPARATOR_SPACING_ = 20
 local _TEXT_SPACING_ = 22
 local _PLOT_SECTION_BREAK_ = 23
@@ -201,22 +202,25 @@ local update = function(cr)
 		 freq_sum = freq_sum + Util.conky_numeric(conky_freqs[t])
 	  end
 
-	  CriticalText.set(core.coretemp_text, cr, Util.round(0.001 * Util.read_file(core.coretemp_path, nil, '*n')))
+	  CriticalText.set(core.coretemp_text, cr, Util.round_to_string(0.001 * Util.read_file(core.coretemp_path, nil, '*n')))
    end
 
    local process_glob = Util.execute_cmd('ps -A -o s')
 
    --subtract one from running b/c ps will always be "running"
-   Text.set(process.value, cr, (char_count(process_glob, 'R') - 1)..' | '..
-			   char_count(process_glob, 'S')..' | '..
-			   char_count(process_glob, 'D')..' | '..
-			   char_count(process_glob, 'T')..' | '..
-			   char_count(process_glob, 'Z'))
+   Text.set(process.value, cr,
+            __string_format('%s | %s | %s | %s | %s',
+                            (char_count(process_glob, 'R') - 1),
+                            char_count(process_glob, 'S'),
+                            char_count(process_glob, 'D'),
+                            char_count(process_glob, 'T'),
+                            char_count(process_glob, 'Z')))
 
-   Text.set(ave_freq.value, cr, Util.round(freq_sum / NUM_PHYSICAL_CORES / NUM_THREADS_PER_CORE) .. ' MHz')
+   Text.set(ave_freq.value, cr, Util.round_to_string(freq_sum / NUM_PHYSICAL_CORES / NUM_THREADS_PER_CORE) .. ' MHz')
 
    local load_percent = Util.round(load_sum / NUM_PHYSICAL_CORES / NUM_THREADS_PER_CORE, 2)
-   CriticalText.set(total_load.value, cr, load_percent * 100)
+   CriticalText.set(total_load.value, cr,
+                    Util.round_to_string(load_percent * 100))
 
    LabelPlot.update(plot, load_percent)
 

schema/Patterns.lua

@@ -101,5 +101,4 @@ M.TRANSPARENT_BLACK = Color.init{hex_rgba = 0x000000, alpha = 0.7}
 
 M = Util.set_finalizer(M, function() print('Cleaning up Patterns.lua') end)
 
-
 return M