Use 'pairs' instead of 'ipairs' so that functions don't break on lists with nil, fix various small bugs

AspectedRouting/IO/lua/all.lua

@@ -1,5 +1,5 @@
 function all(list)
-    for _, value in ipairs(list) do
+    for _, value in pairs(list) do
         if (value == nil) then
             return false
         end

AspectedRouting/IO/lua/containedIn.lua

@@ -1,5 +1,5 @@
 function containedIn(list, a)
-    for _, value in ipairs(list) do
+    for _, value in pairs(list) do
         if (value == a) then
             return true
         end

AspectedRouting/IO/lua/firstMatchOf.lua

@@ -1,5 +1,5 @@
 function first_match_of(tags, result, order_of_keys, table)
-    for _, key in ipairs(order_of_keys) do
+    for _, key in pairs(order_of_keys) do
         local v = tags[key]
         if (v ~= nil) then
 

AspectedRouting/IO/lua/head.lua

@@ -2,7 +2,7 @@ function head(ls)
    if(ls == nil) then
        return nil
    end
-   for _, v in ipairs(ls) do
+   for _, v in pairs(ls) do
        if(v ~= nil) then
            return v
        end

AspectedRouting/IO/lua/if_then_else_dotted.lua

@@ -1,11 +1,22 @@
+function applyIfNeeded(f, arg)
+    if(f == nil) then
+        return nil
+    end
+    if(type(f) == "function") then
+        return f(arg)
+     else
+        return f
+    end
+end
+
 function if_then_else_dotted(conditionf, thnf, elsef, arg)
-    local condition = conditionf(arg);
+    local condition = applyIfNeeded(conditionf, arg); 
     if (condition) then
-        return thnf(arg)
+        return applyIfNeeded(thnf, arg)
     else
         if(elsef == nil) then
             return nil
          end
-        return elsef(arg) -- if no third parameter is given, 'els' will be nil
+        return applyIfNeeded(elsef, arg) -- if no third parameter is given, 'els' will be nil
     end
 end

AspectedRouting/IO/lua/max.lua

@@ -1,10 +1,12 @@
 function max(list)
     local max
-    for _, value in ipairs(list) do
-        if (max == nil) then
-            max = value
-        elseif (max < value) then
-            max = value
+    for _, value in pairs(list) do
+        if (value == nil) then
+            if (max == nil) then
+                max = value
+            elseif (max < value) then
+                max = value
+            end
         end
     end
 

AspectedRouting/IO/lua/min.lua

@@ -1,10 +1,12 @@
 function min(list)
     local min
-    for _, value in ipairs(list) do
-        if (min == nil) then
-            min = value
-        elseif (min > value) then
-            min = value
+    for _, value in pairs(list) do
+        if(value ~= nil) then
+            if (min == nil) then
+                min = value
+            elseif (value < min) then
+                min = value
+            end
         end
     end
 

AspectedRouting/IO/lua/multiply.lua

@@ -1,7 +1,9 @@
 function multiply(list)
     local factor = 1
-    for _, value in ipairs(list) do
-        factor = factor * value
+    for _, value in pairs(list) do
+        if (value ~= nil) then
+            factor = factor * value
+        end
     end
     return factor;
 end

AspectedRouting/IO/lua/parse.lua

@@ -22,6 +22,15 @@ function parse(string)
         end
     end
 
+    if(string:match("%d*:%d*")) then
+        -- duration in minute
+        local duration = 0
+        for part in string:gmatch "%d*" do
+            duration = duration * 60 + tonumber(part)
+        end
+        return duration
+    end
+
 
     return tonumber(string)
 end

AspectedRouting/IO/lua/sum.lua

@@ -1,10 +1,12 @@
 function sum(list)
-    local sum = 1
-    for _, value in ipairs(list) do
-        if(value == 'yes' or value == 'true') then
-            value = 1
+    local sum = 0
+    for _, value in pairs(list) do
+        if(value ~= nil) then
+            if(value == 'yes' or value == 'true') then
+                value = 1
+            end
+            sum = sum + value
         end
-        sum = sum + value
     end
     return sum;
 end

AspectedRouting/IO/lua/unitTest.lua

@@ -1,8 +1,17 @@
 failed_tests = false
 function unit_test(f, fname, index, expected, parameters, tags)
+    if (f == nil) then
+        print("Trying to unit test " .. fname .. " but this function is not defined")
+        failed_tests = true
+        return
+    end
     local result = {attributes_to_keep = {}}
     local actual = f(parameters, tags, result)
-    if (tostring(actual) ~= expected) then
+    if(expected == "null" and actual == nil) then
+        -- OK!
+    elseif(tonumber(actual) and tonumber(expected) and tonumber(actual) == tonumber(expected)) then
+        -- OK!
+    elseif (tostring(actual) ~= expected) then
         print("[" .. fname .. "] " .. index .. " failed: expected " .. expected .. " but got " .. tostring(actual))
         failed_tests = true
     end