TL1 Features

Adding features that will make it easier to write more complex compilers:

1. better references: user and owner are generated as pointers, var String now initialize a pointer to String
2. basic classes: with only instance members
3. better expression conversion to C: = to ==, := to = and . to ->, - can be used instead of minus
4. arrays support, get item by [] Type var := arr[index]
5. update function declaration and call to func name([params]): [out params]
6. functions can be called directly after if, while and :=, and will evaluate to the last output value

• [if/while] func-name([params]): [out params] ...
• [var] := func-name([params]): [out params] ...

1. comments are copied to C
2. #include lumi.1.h is generated
3. all external C code is now in lumi.1.c
4. support for variable argv input parameter
5. basic error handling: raise will start an error that will terminate the program while writing to stderr the function call trace (in the generate C code)
6. adding support for system functios: exit, system and getenv
7. variables and references are initialized with (value) (instead of := value)
8. support string splitting with user String ref(some-string[start:length]) + added more string functions
9. support array splitting with user Array{Type} ref(some-array[start:length])
10. support function references with the Func type
11. for loops are now global and cannot be under do loops:

for n in [value]
  # do stuff with n