TestSuite.txt

======================================================================
==== Testing print.  Important since all the other tests rely on it!
==== And we'll test comments while we're at it.
print "Hello world!"
print "You can ""quote"" me on that."
print(42) // Works both with and without parentheses
----------------------------------------------------------------------
Hello world!
You can "quote" me on that.
42
======================================================================
==== Basic math and operator precedence.
print 2 * 3 + 4
print 2 + 3 * .5
print -2 * -3 - 4
print -2 - 3 * -4
print -2^3
----------------------------------------------------------------------
10
3.5
2
10
-8
======================================================================
==== Logical operators (basics).
print 1 and 1 and 1
print 1 and 0 and 1
print 0 and 1 and 1
print 0 and 0.5
print(0.5 and 1)		// combines intermediate values by rules of probability!
print 0.6 and 0.5
print 1 or 1 or 1
print 1 or 0 or 1
print 0 or 1 or 1
print 0 or 0.5
print 0.6 or 0.3
print 0.5 or 1
print 1 and null
print 1 or null
----------------------------------------------------------------------
1
0
0
0
0.5
0.3
1
1
1
0.5
0.72
1
0
1
======================================================================
==== Logical operators (beyond the standard 0-1 range).
print -1 and 0
print 0 and -1
print -1 or 0
print 0 or -1
print 5 and 10
print 5 or 10
----------------------------------------------------------------------
0
0
1
1
1
1
======================================================================
==== Parsing of numbers in various formats (including exponential).
print 123
print 1.23
print 1.23e+9
print -1.23E+9
print 1.23E-9
print -1.23e-9
----------------------------------------------------------------------
123
1.23
1230000000
-1230000000
1.230000E-09
-1.230000E-09
======================================================================
==== Logical operators, short-circuit evaluation.
reset = function; globals.r = []; end function
ftrue = function(x); globals.r = r + [x]; return 1; end function
ffalse = function(x); globals.r = r + [x]; return 0; end function
fmaybe = function(x); globals.r = r + [x]; return 0.5; end function
reset; print (ftrue(1) and ftrue(2) and ftrue(3)) + "; " + r
reset; print (ftrue(1) and ftrue(2) and ffalse(3)) + "; " + r
reset; print (ftrue(1) and ffalse(2) and ftrue(3)) + "; " + r
reset; print (ffalse(1) and ftrue(2) and ftrue(3)) + "; " + r
reset; print((fmaybe(1) and ftrue(2) and ftrue(3)) + "; " + r);
reset; print((ffalse(1) or ffalse(2) or ffalse(3)) + "; " + r);
reset; print((ffalse(1) or ffalse(2) or ftrue(3)) + "; " + r);
reset; print((ffalse(1) or ftrue(2) or ffalse(3)) + "; " + r);
reset; print((ftrue(1) or ffalse(2) or ffalse(3)) + "; " + r);
reset; print((fmaybe(1) or ffalse(2) or ffalse(3)) + "; " + r);
----------------------------------------------------------------------
1; [1, 2, 3]
0; [1, 2, 3]
0; [1, 2]
0; [1]
0.5; [1, 2, 3]
0; [1, 2, 3]
1; [1, 2, 3]
1; [1, 2]
1; [1]
0.5; [1, 2, 3]
======================================================================
==== Watch out for bug #6 (failure of assignment with boolean operators).
a = 1234; a = (1 or 0); print a
a = 1234; a = (0 or 1); print a
a = 1234; a = (1 and 0); print a
a = 1234; a = (0 and 1); print a
----------------------------------------------------------------------
1
1
0
0
======================================================================
==== Check the new 'true' and 'false' keywords introduced in v1.1.
print true
print false
----------------------------------------------------------------------
1
0
======================================================================
==== Testing conventional 'if', and what values count as true.
if 1 then
	print 10
end if
if -1 then; print(11); end if
if 0 then; print(20); end if
if 0.001 then; print(30); end if
if -0.001 then; print(31); end if
if [1] then; print(40); end if
if [] then; print(50); end if
if null then; print(60); else; print("OK!"); end if
----------------------------------------------------------------------
10
11
30
31
40
OK!
======================================================================
==== Testing the single-line 'if' statement introduced in v1.1.
if true then print "Yep"
if 1 then print "yay" else print"nay"
if false then print "yo" else print "no"
if true then x=1 else x=2
print x
if 1 then print "A" else if 1 then print "B" else print "C"
if 0 then print "A" else if 1 then print "B" else print "C"
if 0 then print "A" else if 0 then print "B" else print "C"
for i in range(1,10)
	if i == 3 then continue
	if i == 6 then break
	print i
end for
f = function(x)
	if x < 0 then return else print x
end function
f -3.14
f 42
----------------------------------------------------------------------
Yep
yay
no
1
A
B
C
1
2
4
5
42
======================================================================
===== More complex 'if' structures.
if 1 then
	print 10
else if 1 then
	print 15
else
	print 20
end if
print 30
if 0 then
	print 40
else if 1 then
	print 45
else
	print 50
end if
print 60
if 0 then
	print 70
else if 0 then
	print 80
else if 1 then
	print 90
else
	print 100
end if
if 0 then
	print 110
else if 0 then
	print 120
else if 0 then
	print 130
else
	print 140
end if
print 150
----------------------------------------------------------------------
10
30
45
60
90
140
150
======================================================================
===== Nested 'if' structures.
if 1 then
	if 1 then; print(101); else; print(102); end if
else
	if 1 then; print(201); else; print(202); end if
end if
print 300
if 0 then
	if 1 then; print(401); else; print(402); end if
else
	if 0 then; print(501); else; print(502); end if
end if
print 999
----------------------------------------------------------------------
101
300
502
999
======================================================================
==== Variables.
x = 6*7
print x
y = x == 42
print y
----------------------------------------------------------------------
42
1
======================================================================
==== List operations.
list1 = [0, 10, 20, 30, 40]
list2 = [100, -200, 300]
print list1[1]
print list1[:3]
print list1[3:]
print list1[-2]
print list1[1:-1]
print list1 + list2
print [10,20,30,40,50][2:4]
print list2 * 2.5
print list1 * 0.4
print list1 * -5
list1[2] = 22
print list1
print "Equality 1: " + (list1 == list2)
listA = list2
print "Equality A: " + (listA == list2)
listB = [100, -200] + [300]
print "Equality B: " + (listB == list2)
----------------------------------------------------------------------
10
[0, 10, 20]
[30, 40]
30
[10, 20, 30]
[0, 10, 20, 30, 40, 100, -200, 300]
[30, 40]
[100, -200, 300, 100, -200, 300, 100]
[0, 10]
[]
[0, 10, 22, 30, 40]
Equality 1: 0
Equality A: 1
Equality B: 1
======================================================================
==== String operations.
str1 = "apple"
str2 = "banana"
print str1[0]
print str1[-2]
print str1 + str2
print str1 * 3
print str1 * 0.6
print str2 * 0.5 + str1
print str2[1:-1]
print str1[2:4] + str2[-3:5]
print str1 * 0 == ""
print "banana.txt" - ".txt"
print "banana" - "na" * 2
----------------------------------------------------------------------
a
l
applebanana
appleappleapple
app
banapple
anan
plan
1
banana
ba
======================================================================
==== Check that our strings comparisons are properly case-sensitive.
print "q" >= "A" and "q" <= "Z"
print "Q" >= "A" and "Q" <= "Z"
print "foo" == "FOO"
print "foo" == "foo"
----------------------------------------------------------------------
0
1
0
1
======================================================================
==== Basic map functionality.
sortedStr = function(d)
	result = "{"
	for k in d.indexes.sort
		result = result + k + ": " + d[k] + ", "
	end for
	return result[:-2] + "}"
end function
a = {1:1, 2:4}
print sortedStr(a)
print a[2]
print sortedStr(a + {3:9})
print sortedStr(a + {1:-1})
a[2] = 44
print a[2]
b = a
c = {1:1} + {2:44}
print "Equality B: " + (b == a)
print "Equality C: " + (c == a)
c[1] = "one"
print "Equality C2: " + (c == a)
d = {"empty":null}
print d
----------------------------------------------------------------------
{1: 1, 2: 4}
4
{1: 1, 2: 4, 3: 9}
{1: -1, 2: 4}
44
Equality B: 1
Equality C: 1
Equality C2: 0
{"empty": null}
======================================================================
==== Test map equality in the trickier case of recursive references.
a = {}
b = {}
c = {}
a.b = b
b.a = a
c = a
print "a == b: " + (a == b)
print "a == c: " + (a == c)
print "b == c: " + (b == c)
----------------------------------------------------------------------
a == b: 0
a == c: 1
b == c: 0
======================================================================
==== Simple intrinsic functions.
==== (Including a range check on rnd, which is about the best we can do.)
print str(4) + str(2)
print slice([0,10,20,30], 1, -1)
print rnd >= 0
print rnd < 1
print str(42.0)
print val("40.2")
t1 = time; wait 0.1; e = time - t1
if e >= 0.1 then print "wait OK" else print "wait broken"
print len("hello")
print len([1,2,3,4])
print len({1:"one", 2:"two"})
print @intrinsics.sin
----------------------------------------------------------------------
42
[10, 20]
1
1
42
40.2
wait OK
5
4
2
FUNCTION(radians=0)
======================================================================
==== Errors when misusing the `new` operator
x = new 42
----------------------------------------------------------------------
Runtime Error: argument to 'new' must be a map [line 1]
==== 
x = new string
----------------------------------------------------------------------
Runtime Error: invalid use of 'new'; to create a string, use quotes, e.g. "foo" [line 1]
==== 
x = new list
----------------------------------------------------------------------
Runtime Error: invalid use of 'new'; to create a list, use square brackets, e.g. [1,2] [line 1]
==== 
x = new number
----------------------------------------------------------------------
Runtime Error: invalid use of 'new'; to create a number, use a numeric literal, e.g. 42 [line 1]
==== 
x = new funcRef
----------------------------------------------------------------------
Runtime Error: invalid use of 'new'; to create a function, use the 'function' keyword [line 1]
======================================================================
==== hasIndex and indexOf on strings, lists, and maps.
s = "abcde"
print s.hasIndex(4)		// 1 (true)
print(s.hasIndex(5))	// 0
print s.hasIndex(-5)	// 1 (5 elements from the end)
print(s.hasIndex(-6))	// 0
print(s.indexOf("cd"))	// 2
print(s.indexOf("xy"))	// null
l = [2,4,6,8]
print l.hasIndex(3)		// 1 (true)
print l.hasIndex(4)		// 0
print l.hasIndex(-4)	// 1
print l.hasIndex("X")	// 0 {GitHub #3}
print l.indexOf(6) 		// 2
print l.indexOf(5) 		// null
d = {1:"one", 2:"two", "foo":42}
print d.hasIndex(1)		// 1 (true)
print(d.hasIndex("x"))	// 0
print(d.indexOf("two"))	// 2
print(d.indexOf(42))	// foo
print(d.indexOf(999))	// null
// and now with the optional "after" parameter...
s = "hello world"
print(s.indexOf("h",-1))	// 0
print(s.indexOf("o"))		// 4
print(s.indexOf("o",4))		// 7
print(s.indexOf("o",7))		// null
print(s.indexOf("l",-3))	// 9
l = [2,4,6,4,2]
print(l.indexOf(2,-1))		// 0
print(l.indexOf(2,0))		// 4
print l.indexOf("X",0)		// null {GitHub #3}
print(l.indexOf(2,-2))		// 4
print(l.indexOf(2,4))		// null
d["bar"] = 42
a = d.indexOf(42)			// "foo" (or "bar"; order undefined)
b = d.indexOf(42, a)		// "bar" (or "foo")
print(d.indexOf(42, b))		// null
l = [a,b]
l.sort
print(l)					// ["bar", "foo"]
----------------------------------------------------------------------
1
0
1
0
2
null
1
0
1
0
2
null
1
0
2
foo
null
0
4
7
null
9
0
4
null
4
null
null
["bar", "foo"]
======================================================================
==== index and slice operators on lists and strings
s = "abcde"
l = [2,4,6,8,10]
print s[0] + ";" + l[0]
print s[1] + ";" + l[1]
print s[-1] + ";" + l[-1]
print s[:3] + ";" + l[:3]
print s[-2:] + ";" + l[-2:]
print s[1:-1] + ";" + l[1:-1]
l2 = l[:]
l2[0] = 42
print str(l) + " -> " + l2
s2 = s[:]
print s2
----------------------------------------------------------------------
a;2
b;4
e;10
abc;[2, 4, 6]
de;[8, 10]
bcd;[4, 6, 8]
[2, 4, 6, 8, 10] -> [42, 4, 6, 8, 10]
abcde
======================================================================
==== truth testing (including with and, or, and not)
emptyList = []
fullList = [1,2,3]
emptyMap = {}
fullMap = {1:"one", 2:"two"}
emptyString = ""
fullString = "foo"
if emptyList then print "A"
if not emptyList then print "B"
if fullList then print "C"
if not fullList then print "D"
if fullString then print "E"
if not fullString then print "F"
if emptyList and fullList then print "G"
if emptyList or fullList then print "H"
if emptyMap and fullMap then print "I"
if emptyMap or fullMap then print "J"
if emptyString and fullString then print "K"
if emptyString or fullString then print "L"
print "not []: " + (not [])
print "not {}: " + (not {})
print "not 0: " + (not 0)
print "not """": " + (not "")
print "not [42]: " + (not [42])
print "not {3:9}: " + (not {3:9})
print "not 42: " + (not 42)
print "not ""a"": " + (not "a")
if @rnd then print "ok" else print "wrong"
----------------------------------------------------------------------
B
C
E
H
J
L
not []: 1
not {}: 1
not 0: 1
not "": 1
not [42]: 0
not {3:9}: 0
not 42: 0
not "a": 0
ok
======================================================================
==== hashing and dictionary key uniqueness
==== (Note that hash(a) should == hash(b) wherever a == b)
a = [1, 2, 3]
b = [1, 2] + [3]
print hash(a) == hash(b)
d = {}
d[a] = 1
d[b] = 2
print d.len + ": " + d[a] + ", " + d[b]
d1 = {1:"one", 2:"two"}
d2 = {1:"one"}
d2[2] = "two"
print hash(d1) == hash(d2)
----------------------------------------------------------------------
1
1: 2, 2
1
======================================================================
==== Equality checking in the edge case of a list or dictionary
==== that contains itself.  This actually works now; our equality
==== checker is smart about recursive data.
a = [1, 2, 3]
a[1] = a
b = [1, 2, 3]
b[1] = b
print hash(a) == hash(b)
print(a == a)	// prints 1, as they're the same object
print(a == b)	// prints 1, because they are equivalent
b[2] = 42		// but they're now truly different
print(a == b)	// so this prints 0
d1 = {1:"foo"}
d1["recurse"] = d1
d2 = {1:"foo"}
d2["recurse"] = d2
print(d1 == d1)	// prints 1, as they're the same object
print(d1 == d2)	// prints 1, because they are equivalent
d2[1] = "bar"	// but they're now truly different
print(d1 == d2)	// so this prints 0
----------------------------------------------------------------------
1
1
1
0
1
1
0
======================================================================
==== Mixed-type equality testing.  Should return null for any ordering
==== comparisons, but 0/1 for equal/not-equal tests.
print 1 == "1"  // (even if they evaluate to the same thing!)
print "foo" == 0
print 42 != [42]
print {"abc":"def"} != "abcdef"
print 1 < "42"
print "abc" > [42]
print [42] <= {1:2}
print {"ichi":1} >= 0
----------------------------------------------------------------------
0
0
1
1
null
null
null
null
======================================================================
==== Trigonometry.
print "Pi: " + round(pi, 2)
print "acos(0.5): " + round(acos(0.5), 3)
print "asin(0.5): " + round(asin(0.5), 3)
print "atan(0.5): " + round(atan(0.5), 3)
print "cos(-pi/4): " + round(cos(-pi/4), 3)
print "sin(-pi/4): " + round(sin(-pi/4), 3)
print "tan(1): " + round(tan(1), 3)
----------------------------------------------------------------------
Pi: 3.14
acos(0.5): 1.047
asin(0.5): 0.524
atan(0.5): 0.464
cos(-pi/4): 0.707
sin(-pi/4): -0.707
tan(1): 1.557
======================================================================
==== User-defined functions (including params, with and without default values).
ultimateAnswer = function
	return 2 + 4*10
end function
print ultimateAnswer
answerWithParens = function()
	return 2 + 4*10
end function
print answerWithParens
f = function(x, y)
	return x*2 + y
end function
print f(5,2)
g = function(x=10, y=20)
	return x*2 + y
end function
h = function(x)
	if x == 42 then; return; end if
	print "Hooray!"
end function
print g
print g()
print g(5)
print g(5, 6)
h(42)
----------------------------------------------------------------------
42
42
12
40
40
30
16
======================================================================
==== Variable scoping tests.
f = function(x)
	print x
	print y
	x = 10
	y = 20
end function
x = 1
y = 2
f(5)
print x
print y
----------------------------------------------------------------------
5
2
1
2
======================================================================
==== Explicit access to globals and locals.
count = 0
foo = "bar"
f = function(x)
	globals.count = globals.count + 1
	locals.foo = "baz"
	print globals.count + ", " + foo
end function
f
f
print foo
----------------------------------------------------------------------
1, baz
2, baz
bar
======================================================================
==== Test precedence between [] and . (a bug in MiniScript version 1).
d = {}
d.items = {}
d.items[42] = "foo!"
print d.items[42]
----------------------------------------------------------------------
foo!
======================================================================
==== Test use of null as a dictionary key or value.
d = {}
d[null] = 42
print d
print d[null]
maybeNull = d.indexes[0]
print maybeNull == null
d.remove null
d[42] = null
print d
print d[42]
print d[42] == null
d = {null:42}
for kv in d
	print kv.key == null
end for
----------------------------------------------------------------------
{null: 42}
42
1
{42: null}
null
1
1
======================================================================
==== Function invocation via dot vs. lookup by name
d = {}
d.func = function(x=0)
	print "Running func with " + x
end function
d.func(1)
f = d["func"]
f(2)
g = @d.func
g(3)
----------------------------------------------------------------------
Running func with 1
Running func with 2
Running func with 3
======================================================================
==== Testing spam generation.  (Not that we condone spam.)
==== (aka string replication)
spam = function(n)
	if n == 1 then
		return "Spam."
	else
		return "Spam, " + "spam, " * (n-2) + "spam."
	end if
end function
print spam(1)
print spam(2)
print spam(3)
print spam(7)
print spam(0)
print spam(-4)
----------------------------------------------------------------------
Spam.
Spam, spam.
Spam, spam, spam.
Spam, spam, spam, spam, spam, spam, spam.
Spam, spam.
Spam, spam.
======================================================================
==== Simple recursion test.
recursiveFactorial = function(n)
	if n == 1 then; return 1; end if
	return n * recursiveFactorial(n-1)
end function
print recursiveFactorial(1)
print recursiveFactorial(5)
----------------------------------------------------------------------
1
120
======================================================================
==== Function invocation & referencing.
triple = function(n)
	return n*3
end function
print(triple)	// NULL, since we didn't supply an argument
print triple(5)
print @triple
f = @triple
print f(6)
----------------------------------------------------------------------
null
15
FUNCTION(n)
18
======================================================================
==== While loop, with break and continue.
i = 0
while i < 20
	i = i + 1
	if i > 10 then break
	if i % 3 == 0 then continue
	print i
end while
// Also test break before else (GitHub issue #2)
while i > 0
	if i < 7 then
		break
	else
		print i
	end if
	i = i - 1
end while
----------------------------------------------------------------------
1
2
4
5
7
8
10
11
10
9
8
7
======================================================================
==== Try (and hopefully fail) to lock up the VM with a reference
==== cycle and an invalid identifier.
a = {}
b = {"__isa": a}
a.__isa = b
x = a.foo
----------------------------------------------------------------------
Runtime Error: __isa depth exceeded (perhaps a reference loop?) [line 4]
======================================================================
==== Test some expected runtime errors.
a = ["zero"]
a[42]
----------------------------------------------------------------------
Runtime Error: Index Error (list index 42 out of range) [line 2]
======================================================================
==== Test the range() intrinsic.
print range(1,10)
print range(10,1)
print range(0, 10, 3)
print range(10, 0, -3)
----------------------------------------------------------------------
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
[10, 9, 8, 7, 6, 5, 4, 3, 2, 1]
[0, 3, 6, 9]
[10, 7, 4, 1]
======================================================================
==== Test the remove() intrinsic.
s = "Hello Bob!"
print s.remove("ell")
print remove(s, " Bob")
l = [1,2,3,4,5]
l.remove(-2)  // (second from the end)
print l
d = {1:"one", "foo":"bar"}
print d.remove("no such key")
print d.remove(1)
print d
----------------------------------------------------------------------
Ho Bob!
Hello!
[1, 2, 3, 5]
0
1
{"foo": "bar"}
======================================================================
==== Test the insert() intrinsic.
s = "Hello Bob!"
print s.insert(5, " there,")
print s.insert(-2, "?")
l = [1,2,3,4,5]
l.insert(1, "A")
l.insert(-2, "B")  // (second from the end)
print l		// should be: [1, "A", 2, 3, 4, "B", 5]
l = [1,2,3,4,5]
l.insert(0, "C")
l.insert(-1, "D")	// equivalent to l.push "B"
print l		// should be: ["C", 1, 2, 3, 4, 5, "D"]
// (Note that insert is not defined for maps, because they are unordered.)
----------------------------------------------------------------------
Hello there, Bob!
Hello Bob?!
[1, "A", 2, 3, 4, "B", 5]
["C", 1, 2, 3, 4, 5, "D"]
======================================================================
==== Test the replace() intrinsic.
s = "Hello Bob!"
print s.replace("o", "oo")
print replace(s, "Bob", "Frank")
s = "Mello Yellow"
print replace(s, "ell", "ipp")
print s.replace("ell", "ipp", 1)
print replace("", "x", "y")
l = [1, 2, 5, 2, "foo", 2, "bar"]
l.replace(2, 22)
print l
print l.replace("foo", "foible")
print l.replace(22, 3, 2)
d = {1:"one", 2:"two", "foo":"bar"}
d.replace("two", "ni")
print d[1] + ", " + d[2] + ", " + d.foo
d.replace("bar", "ni")
print d[1] + ", " + d[2] + ", " + d.foo
d.replace("ni", "two")
print d[1] + ", " + d[2] + ", " + d.foo
d.replace("two", "deux", 1)  // order not defined here, so:
s = d[1] + ", " + d[2] + ", " + d.foo
if s == "one, deux, two" or s == "one, two, deux" then
	print "OK"
else
	print "map replace failed"
end if
----------------------------------------------------------------------
Helloo Boob!
Hello Frank!
Mippo Yippow
Mippo Yellow

[1, 22, 5, 22, "foo", 22, "bar"]
[1, 22, 5, 22, "foible", 22, "bar"]
[1, 3, 5, 3, "foible", 22, "bar"]
one, ni, bar
one, ni, ni
one, two, two
OK
======================================================================
==== For loop, with break and continue.
for i in range(0, 100, 7)
	if i > 50 then; break; end if
	if i % 3 == 0 then; continue; end if
	print i
end for
----------------------------------------------------------------------
7
14
28
35
49
======================================================================
==== For loop iteration over a map (getting key/value pairs).
==== (Note that order is not really defined, so we have to gather
==== up the results and sort them to get a well-defined result.)
d = {"one":1, "two":2, "three":3}
results = []
for i in d
	results = results + [i.key + " maps to " + i.value]
end for
results.sort
print results.len
print results[0]
print results[1]
print results[2]
----------------------------------------------------------------------
3
one maps to 1
three maps to 3
two maps to 2
======================================================================
==== Function references.
f = rnd			// here, f is just a single random number
a1 = f
a2 = f
print a1==a2	// should be true (1)
f = @rnd		// but now, f is a reference to the rnd function
a1 = f
a2 = f
print a1==a2 	// should be false (0)
print @f==@rnd	// should be true (1)
----------------------------------------------------------------------
1
0
1
======================================================================
==== Advanced function references.
module = {}
module.func1 = function(x)
	return x * 42
end function
f = @module.func1
print @f == @module.func1
print @module.func1 == @f
docs = {}
docs[@module.func1] = "Multiplies by 42."
print docs[@module.func1]
print docs[@f]
----------------------------------------------------------------------
1
1
Multiplies by 42.
Multiplies by 42.
======================================================================
==== Compile-time error reporting test.
x = 1
x = 5$&@*!
x = 3
----------------------------------------------------------------------
Compiler Error: got Unknown($) where EOL is required [line 2]
======================================================================
==== Line breaks in string literals are disallowed.
s = "Hello
world!"
----------------------------------------------------------------------
Lexer Error: missing closing quote (") [line 1]
======================================================================
==== Run-time error reporting test.
x = 1
x = noSuchThingy
x = 3
----------------------------------------------------------------------
Runtime Error: Undefined Identifier: 'noSuchThingy' is unknown in this context [line 2]
======================================================================
==== More trapping of loops in the __isa chain
a = {}
a.__isa = a
a[42]
----------------------------------------------------------------------
Runtime Error: __isa depth exceeded (perhaps a reference loop?) [line 3]
======================================================================
==== Trap null reference lookups.
a = null
print a[3]
----------------------------------------------------------------------
Runtime Error: Null Reference Exception: can't index into null [line 2]
======================================================================
==== Trap null reference lookups (#2).
a = null
print a.foo
----------------------------------------------------------------------
Runtime Error: Type Error (while attempting to look up foo) [line 2]
======================================================================
==== Error reporting of unexpected end-of-file.
for i in range(0,10)
	print i
----------------------------------------------------------------------
Compiler Error: 'for' without matching 'end for' [line 3]
======================================================================
==== Error reporting of mismatched "end" token (easy mistake to make).
for i in range(0,10)
	print i
end if
----------------------------------------------------------------------
Compiler Error: 'end if' without matching 'if' [line 3]
======================================================================
==== Another mismatched "end" token.
for i in range(0,10)
	while true
		print "..."
		break
	end for
	print i
end while
----------------------------------------------------------------------
Compiler Error: 'end for' without matching 'for' [line 5]
======================================================================
==== Check that "break" outside of a loop generates the proper error.
break
----------------------------------------------------------------------
Compiler Error: 'break' without open loop block [line 1]
======================================================================
==== Check error when you try to stick a loop inside a single-line "if".
if true then for i in "abc"
----------------------------------------------------------------------
Compiler Error: loop is invalid within single-line 'if' [line 1]
======================================================================
==== Same as above, but with a while loop instead of a for loop.
if true then while true
----------------------------------------------------------------------
Compiler Error: loop is invalid within single-line 'if' [line 1]
======================================================================
==== Testing that objects are distinct, even when new'd in a function.
==== (This was a bug in an early version of MiniScript.)
Vec = {"x":0, "y":0}
Vec.New = function
	return new Vec
end function
v1 = new Vec
v2 = Vec.New
v3 = Vec.New
v1.x = 1
v2.x = 2
v3.x = 3
print v1.x
print v2.x
print v3.x
----------------------------------------------------------------------
1
2
3
======================================================================
==== Similar test, for lists.
f = function
	return [1,2,3]
end function
a = f
b = f
a[1] = 22
print a
print b
----------------------------------------------------------------------
[1, 22, 3]
[1, 2, 3]
======================================================================
==== Reassigning elements of a list in a loop.
lst = [1,2,3,4,5]
for i in range(0, lst.len-1)
	lst[i] = lst[i] * 2
end for
print lst
----------------------------------------------------------------------
[2, 4, 6, 8, 10]
======================================================================
==== Test handling of nulls in lists.
n = null
l = [1,n,3]
print l
l = [4,null,6]
print l
----------------------------------------------------------------------
[1, null, 3]
[4, null, 6]
======================================================================
==== Nested lists (can be used like a jagged 2D array).
m = [[0,1,2], [3,4,5]]
for i in range(0,1)
	for j in range(0,2)
		print i + ", " + j + ": " + m[i][j]
	end for
end for
----------------------------------------------------------------------
0, 0: 0
0, 1: 1
0, 2: 2
1, 0: 3
1, 1: 4
1, 2: 5
======================================================================
==== Testing chaining of calls.
Vec = {"x":0, "y":0}
Vec.New = function(x=0, y=0)
	result = new Vec
	result.x = x
	result.y = y
	return result
end function
Vec.Print = function
	print "x:" + self.x + " y:" + self.y
end function
Vec.New.Print
Vec.New(40,2).Print
s = "Hello world!"
print(s.upper.indexOf("R"))			// 8
print(s.upper().indexOf("R"))		// 8
print(s.remove("l").indexOf("r"))	// 7
d = {}
d.foo = ["a", "b", "c"]
print(d.foo.len)				// 3
print(d.foo.indexOf("b"))		// 1
f = function
	return d
end function
print(f.foo.len)				// 3
print(f.foo.indexOf("b"))		// 1
----------------------------------------------------------------------
x:0 y:0
x:40 y:2
8
8
7
3
1
3
1
======================================================================
==== Testing that a function without an explicit return statement returns null.
f = function(x)
	print x
end function
y = f(42)
if y == null then print "Good" else print "Bad"
----------------------------------------------------------------------
42
Good
======================================================================
==== List push, pop (like a stack), and pull (like a queue).
lst = []
lst.push(1)
lst.push(2)
lst.push(3)
print lst
print lst.pop + " -> " + lst
print lst.pull + " -> " + lst
print lst.pull + " -> " + lst
----------------------------------------------------------------------
[1, 2, 3]
3 -> [1, 2]
1 -> [2]
2 -> []
======================================================================
==== List sort.
lst = [5, 12, 3, 45, 9]  // sorts numerically
print lst.sort
print lst.sort(null, false)
lst = [5, "3", 42]  // sorts alphabetically
print lst.sort
print lst.sort(null, false)
lst = [2, null, 1]
print lst.sort
lst = ["b", null, "a"]
print lst.sort
lst = [{"name":"one", "val":1}, {"name":"two", "val":2}, {"name":"three", "val":3}]
print lst.sort("name")
print lst.sort("val")
print lst.sort("name", false)
print lst.sort("val", false)
----------------------------------------------------------------------
[3, 5, 9, 12, 45]
[45, 12, 9, 5, 3]
["3", 5, 42]
[42, 5, "3"]
[1, 2, null]
["a", "b", null]
[{"name": "one", "val": 1}, {"name": "three", "val": 3}, {"name": "two", "val": 2}]
[{"name": "one", "val": 1}, {"name": "two", "val": 2}, {"name": "three", "val": 3}]
[{"name": "two", "val": 2}, {"name": "three", "val": 3}, {"name": "one", "val": 1}]
[{"name": "three", "val": 3}, {"name": "two", "val": 2}, {"name": "one", "val": 1}]
======================================================================
==== Map push, pop (like a set)
==== Note that this is a bit hard to test because of arbitrary order issues.
sortedStr = function(d)
	result = "{"
	for k in d.indexes.sort
		result = result + k + ": " + d[k] + ", "
	end for
	return result[:-2] + "}"
end function
d = {}
d.push(1)
d.push(2)
d.push(3)
print sortedStr(d)
results = [d.pop, d.pop, d.pop]
results.sort
print results
print d
----------------------------------------------------------------------
{1: 1, 2: 1, 3: 1}
[1, 2, 3]
{}
======================================================================
==== indexes and values intrinsics
d = {1:"one", 2:"two", 3:"three"}
print d.indexes.sort
print d.values.sort
s = "Howdy"
print s.indexes
print s.values
----------------------------------------------------------------------
[1, 2, 3]
["one", "three", "two"]
[0, 1, 2, 3, 4]
["H", "o", "w", "d", "y"]
======================================================================
==== list sorting (both direct, and by a given key)
lst = [42, 6, -3, 10, -1, 13]
lst.sort
print lst
lst = []
lst.push({"name":"three", "val":3})
lst.push({"name":"one", "val":1})
lst.push({"name":"four", "val":4})
lst.push({"name":"two", "val":2})
lst.sort("name")
print lst
lst.sort("val")
print lst
----------------------------------------------------------------------
[-3, -1, 6, 10, 13, 42]
[{"name": "four", "val": 4}, {"name": "one", "val": 1}, {"name": "three", "val": 3}, {"name": "two", "val": 2}]
[{"name": "one", "val": 1}, {"name": "two", "val": 2}, {"name": "three", "val": 3}, {"name": "four", "val": 4}]
======================================================================
==== Test the super pseudo-keyword
A = {}
A.name = "Ay"
A.func = function
	return self.name + "1"
end function
B = new A
B.name = "Bee"
C = new B
C.name = "Sea"
C.func = function
	return super.func + "." + self.name + "3"
end function
c = new C
print c.func
----------------------------------------------------------------------
Sea1.Sea3
======================================================================
==== Test the join intrinsic
print range(1,5).join
print ["a","b","c"].join("<>")
print [].join("<>")
----------------------------------------------------------------------
1 2 3 4 5
a<>b<>c

======================================================================
==== Test log.
print log(100)
print log(2048, 2)
print log(50, 5)
----------------------------------------------------------------------
2
11
2.430677
======================================================================
==== Test the bitwise intrinsics.
print bitAnd(14, 7)	// binary 1110 & 0111 = 0110
print bitOr(14, 7)	// binary 1110 | 0111 = 1111
print bitXor(14, 7)	// binary 1110 ^ 0111 = 1001
print bitAnd(1099511627774, 962072674207) // too many bits. use your calc.
print bitAnd(-224883, 222678)
print bitAnd(-224883, -222678)
print bitOr(17592186044414, 87960930222009)
print bitOr(-12345, 54321)
print bitXor(192763993632181, 168643457158587)
print bitXor(-23453455467, -76598387347)
----------------------------------------------------------------------
6
15
9
962072674206
222290
-222290
87960930222079
-62521
59579786731534
88591169272
======================================================================
==== Check various edge cases with function calls and implicit results.
func = function
	print "func invoked!"
	return rnd * 10
end function
print "A"
print func < 100
print "B"
@f2 = @func
print @func == @f2
print "C"
print rnd == rnd
print @rnd == @rnd
print @rnd
print round(12345, -3)
----------------------------------------------------------------------
A
func invoked!
1
B
1
C
0
1
FUNCTION(seed)
12000
======================================================================
==== Check that invoking a non-function with arguments throws
==== a "too many arguments" exception (issue #35).
x = 42
print x(1)
----------------------------------------------------------------------
Runtime Error: Too Many Arguments [line 2]
======================================================================
==== Check that we look only in the local and global scope for
==== identifiers, and not in any call frames in between.
func1 = function
	var1 = 42
	var2 = "ignore me"
	func2
end function
func2 = function
	print "var1: " + var1
	print "var2: " + var2
	var2 = "local"
	print "new var2: " + var2
end function
var1 = 12345
var2 = "globalVar2"
func1
----------------------------------------------------------------------
var1: 12345
var2: globalVar2
new var2: local
======================================================================
==== Test isa.
print 42 isa null
print funcRef isa null
print null isa null
print 42 isa number
print 42 isa string
print "foo" isa string
print "foo" isa number
print {} isa map
d = {}
e = new d
print e isa d
print d isa d
----------------------------------------------------------------------
0
0
1
1
0
1
0
1
1
0
======================================================================
==== Test math-assignment operators.
score = 0
score += 12; print score
score -= 2; print score
score *= 3; print score
score /= 5; print score
score %= 4; print score
score ^= 3; print score
f = function
	globals.score += 15
end function
f
print score
----------------------------------------------------------------------
12
10
30
6
2
8
23
======================================================================
==== Test adding new extension methods to built-in types.
string.cap = function
	return self[0].upper + self[1:]
end function
print "foo!".cap
number.squared = function
	return self * self
end function

// Known issue: you can't use dot syntax with numeric literals.
n = 9
print n.squared

list.zap = function(x)
	for i in range(self.len-1, 0)
		if self[i] == x then self.remove i
	end for
end function
l = ["a","b","c","b","a"]
l.zap("b")
print l
----------------------------------------------------------------------
Foo!
81
["a", "c", "a"]
======================================================================
==== Test line continuation
x = [1, 2,  // partial line!
3, 4]
print x
print "Hello " +
"world!"
print 1 and
1
x = [
	1,
	2,
]
print x
d = {
	"a":1,
	"b":2,
}
print d.a + " and " + d.b
print true and
  true
----------------------------------------------------------------------
[1, 2, 3, 4]
Hello world!
1
[1, 2]
1 and 2
1
======================================================================
==== Test map entry lookups, both inherited and direct.
A = {"one":1, "two":2}
B = new A
B.two = "202"
print B.two
print B.one
print B.two
----------------------------------------------------------------------
202
1
202
======================================================================
==== Test handling of NaN and Infinity in various ways.
==== (Note that conversion of these to string is currently undefined.)
NaN = 0/0
Inf = 1/0
print "foo"*NaN == null
print "Inf"*NaN == null
print "foo"*Inf == null
print "Inf"*Inf == null
print [42]*NaN == null
print [42]*NaN == null
print [42]*Inf == null
print [42]*Inf == null
----------------------------------------------------------------------
1
1
1
1
1
1
1
1
======================================================================
==== Test binding of function context (i.e. outer scope)
globA = "Global A"
funcA = function
	AlocalA = "Local A in funcA"
	AlocalB = 42
	funcB = function
		BlocalA = "Local A in funcB"
		print [globA, AlocalA, AlocalB, BlocalA]
	end function
	funcB
end function
funcA
----------------------------------------------------------------------
["Global A", "Local A in funcA", 42, "Local A in funcB"]
======================================================================
==== Test assigning to outer-scope variables via "outer"
globA = "Global A"
funcA = function
	AlocalA = "Local A in funcA"
	AlocalB = 0
	funcB = function
		BlocalA = "Local A in funcB"
		outer.AlocalB = AlocalB + 1
		print [globA, AlocalA, AlocalB, BlocalA]
	end function
	funcB
	funcB
	funcB
end function
funcA
----------------------------------------------------------------------
["Global A", "Local A in funcA", 1, "Local A in funcB"]
["Global A", "Local A in funcA", 2, "Local A in funcB"]
["Global A", "Local A in funcA", 3, "Local A in funcB"]
======================================================================
==== Test extending the intrinsic types with new methods
string.foo = function
	return self + "foo"
end function
print "hello".foo

number.squared = function
	return self*self
end function
x = 42   // (methods on numeric literals are not currently supported)
print x.squared

list.dbl = function
	return self + self
end function
print [1,2,3].dbl

map.sortedKeys = function
	keys = self.indexes
	keys.sort
	return keys
end function
print {3:"three", 1:"one", 2:"two"}.sortedKeys
----------------------------------------------------------------------
hellofoo
1764
[1, 2, 3, 1, 2, 3]
[1, 2, 3]
======================================================================
==== Test the refEquals intrinsic
a = {"x":42}
b = {"x":42}
c = a
print refEquals(a,b)
print refEquals(a,c)
print refEquals(b,c)
a = [1,2,3]
b = [1,2,3]
c = a
print refEquals(a,b)
print refEquals(a,c)
print refEquals(b,c)
----------------------------------------------------------------------
0
1
0
0
1
0
======================================================================
==== Test the split intrinsic
print split("Eat, pray, love", ", ")
print split("...foo...bar...", "...")
print "Eat, pray, love".split(", ", 2)
print "foo=bar=baz=bamf".split("=", 3)
print "Hello".split("", 3)
----------------------------------------------------------------------
["Eat", "pray", "love"]
["", "foo", "bar", ""]
["Eat", "pray, love"]
["foo", "bar", "baz=bamf"]
["H", "e", "llo"]
======================================================================
==== Example: Summing an array (http://c2.com/cgi/wiki?ArraySum)
==== (trivial thanks to the built-in sum function)
print sum([10,15,20])
list = [100,15,20]
print list.sum
----------------------------------------------------------------------
45
135
======================================================================
==== Example: Counter (http://c2.com/cgi/wiki?CounterInManyProgrammingLanguages)
==== (Overflows when a signed int is exceeded.)
======================================================================
Counter = {"value":0}
Counter.next = function
	self.value = self.value + 1
	return self.value
end function
c = new Counter
print c.next
print c.next
print c.next
----------------------------------------------------------------------
1
2
3
======================================================================
==== Example: Dot Product (http://c2.com/cgi/wiki?DotProductInManyProgrammingLanguages)
dotProduct = function(a, b)
	sum = 0
	for i in range(0, a.len - 1)
		sum = sum + a[i] * b[i]
	end for
	return sum
end function
print dotProduct([1, 2, 3], [10, 100, 1000])
----------------------------------------------------------------------
3210
======================================================================
==== Example: FizzBuzz (http://rosettacode.org/wiki/FizzBuzz)
fizzBuzz = function(n)
	for i in range(1, n)
	    s = "Fizz" * (i%3==0) + "Buzz" * (i%5==0)
		if s == "" then s = str(i)
		print s
	end for
end function
fizzBuzz(15)
----------------------------------------------------------------------
1
2
Fizz
4
Buzz
Fizz
7
8
Fizz
Buzz
11
Fizz
13
14
FizzBuzz
======================================================================
==== Example: Map (http://rosettacode.org/wiki/Apply_a_callback_to_an_array)
map = function(f, seq)
	result = []
	for i in seq
		result = result + [f(i)]
	end for
	return result
end function
square = function(x)
	return x*x
end function
list = [2,3,5]
print map(@square, list)
----------------------------------------------------------------------
[4, 9, 25]
======================================================================
==== Example: Filter (http://rosettacode.org/wiki/Filter)
filter = function(f, seq)
	result = []
	for i in seq
		if f(i) then result = result + [i]
	end for
	return result
end function
isEven = function(x)
	return x % 2 == 0
end function
list = [2,3,5,6,8,9]
print filter(@isEven, list)
----------------------------------------------------------------------
[2, 6, 8]
======================================================================
==== Sum and Product of an array
==== (http://rosettacode.org/wiki/Sum_and_product_of_an_array)
==== We have a built-in function for the sum, but not the product.
product = function(seq)
	prod = 1
	for i in seq
		prod = prod * i
	end for
	return prod
end function
list = [2, 4, 6]
print list.sum
print(product(list))	// pity we can't add this to the built-in list type!
----------------------------------------------------------------------
12
48
======================================================================
==== Greatest Common Denominator (http://rosettacode.org/wiki/Greatest_common_divisor)
gcd = function(a, b)
	if a == 0 then return b
	while b != 0
		newA = b
		b = a % b
		a = newA
	end while
	return abs(a)
end function
print gcd(-21, 35)
----------------------------------------------------------------------
7
======================================================================
==== Max element of a list (http://rosettacode.org/wiki/Greatest_element_of_a_list)
max = function(seq)
	if seq.len == 0 then return null
	max = seq[0]
	for item in seq
		if item > max then max = item
	end for
	return max
end function
print max([5, -2, 12, 7, 0])
----------------------------------------------------------------------
12
======================================================================
==== Split a string into a list by some delimiter
==== (without using the .split function added in 1.4!)
oldSplit = function(s, delim)
	result = []
	wordStart = 0
	sLen = s.len
	delimLen = delim.len
	i = 0
	while i < sLen
		if s[i:i+delimLen] == delim then
			result = result + [ s[wordStart:i] ]
			wordStart = i + delimLen
			i = wordStart
		else
			i = i + 1
		end if
	end while
	result = result + [ s[wordStart:i] ]
	return result
end function
print oldSplit("Eat, pray, love", ", ")
print oldSplit("...foo...bar...", "...")
----------------------------------------------------------------------
["Eat", "pray", "love"]
["", "foo", "bar", ""]
======================================================================
==== Titlecase function
titlecase = function(s)
	result = ""
	for i in s.indexes
		if i == 0 or s[i-1] == " " then
			result = result + s[i].upper
		else
			result = result + s[i].lower
		end if
	end for
	return result
end function
print titlecase("AND NOW for something completely different")
----------------------------------------------------------------------
And Now For Something Completely Different
======================================================================
==== Check for bug #90, where @ was ignored in one special case
m = {"r":@rnd}
print (@m.r)
----------------------------------------------------------------------
FUNCTION(seed)
======================================================================
==== Order of operations: assignment
p = function(first, second)
	print first
	return @second
end function
m = {}
m[p("LEFT", "x")] = p("RIGHT", 3)
m[p("LEFT", "x")] += p("RIGHT", 3)
m[p("LEFT", "x")] -= p("RIGHT", 3)
m[p("LEFT", "x")] *= p("RIGHT", 3)
m[p("LEFT", "x")] /= p("RIGHT", 3)
m[p("LEFT", "x")] ^= p("RIGHT", 3)
m[p("LEFT", "x")] %= p("RIGHT", 3)
----------------------------------------------------------------------
LEFT
RIGHT
LEFT
RIGHT
LEFT
RIGHT
LEFT
RIGHT
LEFT
RIGHT
LEFT
RIGHT
LEFT
RIGHT
======================================================================
==== Order of operations: boolean
p = function(first, second)
	print first
	return @second
end function
print p("LEFT", false) or p("RIGHT", true)
print p("LEFT", true) and p("RIGHT", false)
----------------------------------------------------------------------
LEFT
RIGHT
1
LEFT
RIGHT
0
======================================================================
==== Order of operations: isa
p = function(first, second)
	print first
	return @second
end function
print p("LEFT", {}) isa p("RIGHT", {})
----------------------------------------------------------------------
LEFT
RIGHT
0
======================================================================
==== Order of operations: comparisons
p = function(first, second)
	print first
	return @second
end function
print p("LEFT", 1) == p("RIGHT", 1)
print p("LEFT", 1) != p("RIGHT", 1)
print p("LEFT", 1) > p("RIGHT", 1)
print p("LEFT", 1) < p("RIGHT", 1)
print p("LEFT", 1) >= p("RIGHT", 1)
print p("LEFT", 1) <= p("RIGHT", 1)
print   p("A", 1) ==
		p("B", 1) !=
		p("C", 1) >
		p("D", 1) <
		p("E", 1) >=
		p("F", 1) <=
		p("G", 1)
----------------------------------------------------------------------
LEFT
RIGHT
1
LEFT
RIGHT
0
LEFT
RIGHT
0
LEFT
RIGHT
0
LEFT
RIGHT
1
LEFT
RIGHT
1
A
B
C
D
E
F
G
0
======================================================================
==== Order of operations: add and subtract
p = function(first, second)
	print first
	return @second
end function
print p("LEFT", 2) + p("RIGHT", 3)
print p("LEFT", 2) - p("RIGHT", 3)
print   p("A", 2) +
		p("B", 3) -
		p("C", 4) +
		p("D", 5)
----------------------------------------------------------------------
LEFT
RIGHT
5
LEFT
RIGHT
-1
A
B
C
D
6
======================================================================
==== Order of operations: multiply, divide, modulo
p = function(first, second)
	print first
	return @second
end function
print p("LEFT", 3) * p("RIGHT", 2)
print p("LEFT", 3) / p("RIGHT", 2)
print p("LEFT", 3) % p("RIGHT", 2)
print   p("A", 2) *
		p("B", 3) /
		p("C", 4) %
		p("D", 5) *
		p("E", 6)
----------------------------------------------------------------------
LEFT
RIGHT
6
LEFT
RIGHT
1.5
LEFT
RIGHT
1
A
B
C
D
E
9
======================================================================
==== Order of operations: power
p = function(first, second)
	print first
	return @second
end function
print p("LEFT", 2) ^ p("RIGHT", 3)
----------------------------------------------------------------------
LEFT
RIGHT
8
======================================================================
==== Order of operations: indexing and slicing
p = function(first, second)
	print first
	return @second
end function
print p("OBJECT", {"x": "hello"})[
		p("KEY", "x") ]
print p("OBJECT", range(4))[
		p("START", 1) :
		p("STOP", -1) ]
----------------------------------------------------------------------
OBJECT
KEY
hello
OBJECT
START
STOP
[3, 2, 1]
======================================================================
==== Order of operations: @ versus ^
a = 2
b = 3
print @a ^ @b
----------------------------------------------------------------------
8
======================================================================
==== Order of operations: call operation and statement
p = function(first, second)
	print first
	return @second
end function
sum3 = function(a, b, c)
	return a + b + c
end function
print p("CALLABLE", {"f": @sum3}).f(
		p("ARG1", "a"),
		p("ARG2", "b"),
		p("ARG3", "c") )
p("CALLABLE", @sum3) p("ARG1", "a"),
					p("ARG2", "b"),
					p("ARG3", "c")
----------------------------------------------------------------------
CALLABLE
ARG1
ARG2
ARG3
abc
CALLABLE
ARG1
ARG2
ARG3
======================================================================
==== Order of operations: list and map literals
p = function(first, second)
	print first
	return @second
end function
print [ p("ELEM_1", 1), p("ELEM_2", 2), p("ELEM_3", 3) ]
m = { p("KEY_1", 10): p("VALUE_1", 15), p("KEY_2", 20): p("VALUE_2", 25), p("KEY_3", 30): p("VALUE_3", 35) }
print m[10]
print m[20]
print m[30]
----------------------------------------------------------------------
ELEM_1
ELEM_2
ELEM_3
[1, 2, 3]
KEY_1
VALUE_1
KEY_2
VALUE_2
KEY_3
VALUE_3
15
25
35