Symbl

An interpreted symbol-based language inspired by BF.

Installation

Clone source repository: git clone https://github.com/csaye/symbl
Change directory to symbl/: cd symbl/
Install requirements: pip install -r requirements.txt
Give permission to run run.sh:chmod +x run.sh
Run run.sh on your program file: ./run.sh <program>

Symbols

> increment pointer
< decrement pointer
+ increment byte
- decrement byte
* lshift byte
/ rshift byte
. output byte
: output number
, input byte
; input number
[ start loop
] end loop
a-zA-Z set byte
0-9 set number
# comment

Examples

helloworld.sy

Prints Hello World!\n.

H.e.l..o. # print 'Hello'
A/. # print ' ' (char code 32)
W.o.r.l.d. # print 'World'
B/. # print '!' (char code 33)
9+. # print '\n' (char code 10)

forloop.sy

Prints 0123456789.

9+ # set first cell to 10
[ # repeat while first cell nonzero
>: # print number in second cell
+ # increment second cell
<- # decrement first cell
] # repeat while first cell nonzero

fizzbuzz.sy

Prints the first 100 FizzBuzz numbers.

->d>>9+>>>>>>>>>>>>>>>+<<<<<<<<<<<<<<<<<[>+>> # set up 15-tape
[<F.i.z..B.u.z..9+.>>>>>>>>>>>>>>>>++[-<+]->>>>-] # n % 15 = 0
>[<<<:>.>+>-] # n % 15 = 1
>[<<<<:>.>>+>-] # n % 15 = 2
>[<<<<F.i.z..9+.>>>+>-] # n % 15 = 3
>[<<<<<<:>.>>>>+>-] # n % 15 = 4
>[<<<<<<B.u.z..9+.>>>>>+>-] # n % 15 = 5
>[<<<<<<<F.i.z..9+.>>>>>>+>-] # n % 15 = 6
>[<<<<<<<<<:>.>>>>>>>+>-] # n % 15 = 7
>[+[-<+]->>:>.>>>>>>>>+>-] # n % 15 = 8
>[<<<<<<<<<<F.i.z..9+.>>>>>>>>>+>-] # n % 15 = 9
>[+[-<+]->>>B.u.z..9+.>>>>>>>>>>+>-] # n % 15 = 10
>[+[-<+]->>:>.>>>>>>>>>>>+>-] # n % 15 = 11
>[+[-<+]->>>F.i.z..9+.>>>>>>>>>>>>+>-] # n % 15 = 12
>[+[-<+]->>:>.>>>>>>>>>>>>>+>-] # n % 15 = 13
>[+[-<+]->>:>.>>>>>>>>>>>>>>+>-] # n % 15 = 14
>[<+>-]+[-<+]->-] # increment 15-tape