public void Neglect()
{
Pattern pattern = Not(Many(';'));
ResultAssert.Captures("123456789", pattern.Consume("123456789;"));
ResultAssert.Fails(pattern.Consume(";"));
}
public void Double_Negator()
{
Pattern pattern = Not(Not("Hello"));
ResultAssert.Captures("Hello", pattern.Consume("Hello"));
ResultAssert.Fails(pattern.Consume("World"));
}
public void Consume()
{
Pattern pattern = "Hello".Or("Goodbye");
ResultAssert.Captures("Hello", pattern.Consume("Hello"));
ResultAssert.Captures("Goodbye", pattern.Consume("Goodbye"));
ResultAssert.Fails(pattern.Consume("!"));
ResultAssert.Fails(pattern.Consume("How are you?"));
pattern = "Hello".Or("Hi").Or("Howdy");
ResultAssert.Captures("Hello", pattern.Consume("Hello"));
ResultAssert.Captures("Hi", pattern.Consume("Hi"));
ResultAssert.Captures("Howdy", pattern.Consume("Howdy"));
ResultAssert.Fails(pattern.Consume("Goodbye"));
pattern = OneOf("Hello", "Hi", "Howdy");
ResultAssert.Captures("Hello", pattern.Consume("Hello"));
ResultAssert.Captures("Hi", pattern.Consume("Hi"));
ResultAssert.Captures("Howdy", pattern.Consume("Howdy"));
ResultAssert.Fails(pattern.Consume("Goodbye"));
pattern = OneOf <Enum>();
ResultAssert.Captures("First", pattern.Consume("First"));
ResultAssert.Captures("Second", pattern.Consume("Second"));
ResultAssert.Captures("Third", pattern.Consume("Third"));
ResultAssert.Fails(pattern.Consume("Fourth"));
}
public void Nested_Consume()
{
Pattern pattern = NestedRange("if", "end if");
ResultAssert.Captures("if\nif\nend if\nbacon\nend if", pattern.Consume("if\nif\nend if\nbacon\nend if\nfoobar"));
ResultAssert.Fails(pattern.Consume("if\nif\nend if\nbacon\nfoobar"));
}
public void Consume()
{
Pattern pattern = new Regex("^hello").AsPattern();
ResultAssert.Captures("hello", pattern.Consume("hello"));
ResultAssert.Captures("hello", pattern.Consume("hello world"));
ResultAssert.Fails(pattern.Consume("hel"));
}
public void Consume()
{
Pattern pattern = Many(' ');
ResultAssert.Captures(" ", pattern.Consume(" Hi!"));
ResultAssert.Captures(" ", pattern.Consume(" Hi!"));
ResultAssert.Fails(pattern.Consume("Hi! "));
}
public void Neglect()
{
Pattern pattern = Not("Hello".Or("Goodbye"));
ResultAssert.Captures("World", pattern.Consume("Worldeater"));
ResultAssert.Fails(pattern.Consume("Hello"));
ResultAssert.Fails(pattern.Consume("Goodbye"));
}
public void Consume()
{
Pattern pattern = "Hi! ".AsPattern() * 2;
ResultAssert.Captures("Hi! Hi! ", pattern.Consume("Hi! Hi! "));
ResultAssert.Captures("Hi! Hi! ", pattern.Consume("Hi! Hi! Hi!"));
ResultAssert.Fails(pattern.Consume("Hi! Bye! "));
}
public void Double_Spanner()
{
Pattern pattern = Many(Many("hi"));
ResultAssert.Captures("hi", pattern.Consume("hi"));
ResultAssert.Captures("hihi", pattern.Consume("hihi"));
ResultAssert.Captures("hihihi", pattern.Consume("hihihi"));
ResultAssert.Fails(pattern.Consume(""));
}
public void Neglect()
{
Pattern pattern = Not("Hi! ".AsPattern() * 2);
ResultAssert.Captures("Oh! No! ", pattern.Consume("Oh! No! "));
ResultAssert.Captures("Oh? Hi! ", pattern.Consume("Oh? Hi! "));
ResultAssert.Captures("Hi! Ho! ", pattern.Consume("Hi! Ho! "));
ResultAssert.Fails(pattern.Consume("H! Hi! "));
}
public void Alternate_Repeater()
{
Pattern pattern = "Hi".Or("Bye").Then(' ').Repeat(2);
ResultAssert.Captures("Hi Bye ", pattern.Consume("Hi Bye Hi "));
ResultAssert.Captures("Hi Hi ", pattern.Consume("Hi Hi Hi "));
ResultAssert.Captures("Hi Hi ", pattern.Consume("Hi Hi "));
ResultAssert.Fails(pattern.Consume("Hi Hi"));
}
public void Consume()
{
Pattern pattern = Fuzzy("Bob");
ResultAssert.Captures("Bob", pattern.Consume("Bob"));
ResultAssert.Captures("bob", pattern.Consume("bob"));
ResultAssert.Captures("Mob", pattern.Consume("Mob"));
ResultAssert.Captures("mob", pattern.Consume("mob"));
ResultAssert.Fails(pattern.Consume("Mom"));
}
public void Neglect()
{
Pattern pattern = Not("Hello");
ResultAssert.Captures("Oh no", pattern.Consume("Oh no!"));
ResultAssert.Captures("Oh no", pattern.Consume("Oh no?"));
ResultAssert.Fails(pattern.Consume("Hello"));
ResultAssert.Fails(pattern.Consume("Hello!"));
ResultAssert.Fails(pattern.Consume("Hello."));
}
public void Backtracking()
{
Pattern end1 = "end".Then(Many(' ')).Then("first");
Pattern end2 = "end".Then(Many(' ')).Then("second");
Source source = new Source("end second");
//f backtracking doesn't occur, parsing end2 will fail, because "end" and the space will have been consumed
ResultAssert.Fails(end1.Consume(ref source));
ResultAssert.Captures("end second", end2.Consume(ref source));
}
public void Mutate_And_Consume()
{
Pattern pattern = Mutable();
pattern.Then("Hello").Then(' ').Then("world");
ResultAssert.Captures("Hello world", pattern.Consume("Hello world"));
Not(pattern).Seal();
ResultAssert.Captures("Bacon cakes", pattern.Consume("Bacon cakes"));
ResultAssert.Fails(pattern.Consume("Hello world"));
}
public void Consume()
{
Pattern pattern = "Hello".Then(' ').Then("world");
ResultAssert.Captures("Hello world", pattern.Consume("Hello world"));
ResultAssert.Fails(pattern.Consume("Goodbye world"));
pattern = "Goodbye".Then(' ').Then("world");
ResultAssert.Captures("Goodbye world", pattern.Consume("Goodbye world"));
ResultAssert.Fails(pattern.Consume("Hello world"));
}
public void Identifier()
{
Pattern pattern = Check(
(c) => c.IsLetter(), true,
(c) => c.IsLetter() || c == '_', true,
(c) => c.IsLetter() || c == '_', false);
ResultAssert.Captures("hello", pattern.Consume("hello"));
ResultAssert.Captures("example_name", pattern.Consume("example_name"));
ResultAssert.Fails(pattern.Consume("_fail"));
}
public void RightRecursion()
{
Pattern pattern = Mutable();
pattern.Then("hi!").Then(EndOfSource | pattern);
pattern.Seal();
ResultAssert.Captures("hi!", pattern.Consume("hi!"));
ResultAssert.Captures("hi!hi!", pattern.Consume("hi!hi!"));
ResultAssert.Captures("hi!hi!hi!", pattern.Consume("hi!hi!hi!"));
ResultAssert.Captures("hi!hi!hi!hi!", pattern.Consume("hi!hi!hi!hi!"));
ResultAssert.Fails(pattern.Consume(""));
}
public void Consume_String_FromString()
{
ResultAssert.Captures("Hello", "Hello".Consume("Hello World"));
ResultAssert.Fails("Hello".Consume("Hell"));
ResultAssert.Fails("Hello".Consume("Bacon"));
}