Data commit

Task/Text-processing-2/Lua/text-processing-2.lua

@@ -0,0 +1,44 @@
+filename = "readings.txt"
+io.input( filename )
+
+dates = {}
+duplicated, bad_format = {}, {}
+num_good_records, lines_total = 0, 0
+
+while true do
+    line = io.read( "*line" )
+    if line == nil then break end
+
+    lines_total = lines_total + 1
+
+    date = string.match( line, "%d+%-%d+%-%d+" )
+    if dates[date] ~= nil then
+        duplicated[#duplicated+1] = date
+    end
+    dates[date] = 1
+
+    count_pairs, bad_values = 0, false
+    for v, w in string.gmatch( line, "%s(%d+[%.%d+]*)%s(%-?%d)" ) do
+        count_pairs = count_pairs + 1
+        if tonumber(w) <= 0 then
+            bad_values = true
+        end
+    end
+    if count_pairs ~= 24 then
+        bad_format[#bad_format+1] = date
+    end
+    if not bad_values then
+        num_good_records = num_good_records + 1
+    end
+end
+
+print( "Lines read:", lines_total )
+print( "Valid records: ", num_good_records )
+print( "Duplicate dates:" )
+for i = 1, #duplicated do
+    print( "   ", duplicated[i] )
+end
+print( "Bad format:" )
+for i = 1, #bad_format do
+    print( "   ", bad_format[i] )
+end