eva - calculator REPL, with syntax highlighting and persistent history

	Commit message (Expand)	Author	Age	Files	Lines
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*	add hyperbolic trignometric functions, tabularize	NerdyPepper	2019-03-22	1	-10/+13
*	major refactor, lexer is easier to read	NerdyPepper	2019-03-22	1	-29/+41
*	flatten lexer	NerdyPepper	2019-03-22	1	-12/+7
*	support unary operators (minus and plus)	NerdyPepper	2019-03-22	2	-5/+19
*	autobalance brackets	NerdyPepper	2019-03-22	1	-0/+24
*	add floor and ceil fn	NerdyPepper	2019-03-22	1	-0/+2
*	new ignores	NerdyPepper	2019-03-21	1	-1/+10
*	add goals	NerdyPepper	2019-03-21	1	-0/+7
*	refactor into modules	NerdyPepper	2019-03-21	3	-235/+247
*	use degree as default unit, remove test code	NerdyPepper	2019-03-20	1	-13/+12
*	simplify complicated construct	NerdyPepper	2019-03-20	1	-11/+9
*	fix major parser bug	NerdyPepper	2019-03-20	1	-19/+17
*	add function parsing	NerdyPepper	2019-03-20	1	-0/+12
*	eva now lexes functions	NerdyPepper	2019-03-20	1	-13/+55
*	basic REPL functionality	NerdyPepper	2019-03-19	1	-7/+17
*	add postfix eval fn, more lexing features	NerdyPepper	2019-03-19	1	-6/+44
*	fix lexing issue (drain num_vec)	NerdyPepper	2019-03-19	1	-0/+5
*	add lexed to rpn function	NerdyPepper	2019-03-19	1	-4/+66
*	name change to eva	NerdyPepper	2019-03-19	2	-2/+2
*	new operator struct, updated lexer	NerdyPepper	2019-03-18	1	-32/+36
*	add readme	NerdyPepper	2019-03-16	1	-0/+3
*	write basic AST structure	NerdyPepper	2019-03-16	1	-6/+41
*	use matches, enums	NerdyPepper	2019-03-16	1	-69/+43
*	simplify emptying of NB and CB	NerdyPepper	2019-02-24	1	-21/+35
*	refactor	NerdyPepper	2019-02-24	1	-11/+35
*	init	NerdyPepper	2019-02-24	4	-0/+56