https://github.com/0dminnimda/pybex
A simple Interpreted Dynamic Programming Language for describing chat bot commands and behavior.
https://github.com/0dminnimda/pybex
Last synced: 3 months ago
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A simple Interpreted Dynamic Programming Language for describing chat bot commands and behavior.
- Host: GitHub
- URL: https://github.com/0dminnimda/pybex
- Owner: 0dminnimda
- License: mit
- Created: 2021-11-05T02:59:28.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2022-10-30T23:02:42.000Z (over 2 years ago)
- Last Synced: 2025-03-13T00:20:46.002Z (4 months ago)
- Language: Python
- Size: 79.1 KB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# **Py**thon **B**ot **EX**pression (PyBEX)
A simple Interpreted Dynamic Programming Language for describing chat bot commands and behavior.
## Installing PyBEX
PyBEX is available on PyPI:
```console
python -m pip install -U pybex
```
## Language Elements
### String
```
"Hello, World"
'single or double - doesn\'t matter'
"""multiline
ones"""
'''are
supported'''
```
### Number
```
# integers
69
420
1_000_000 # 1000000
# and floats
3.1415
5e-10
```
### Variable
```
args
sender
_underscore
```
### Funcalls
```
f()
f(g())
f(69, 420, 3.1415)
f("can take in any other language element")
```
## Interactive mode
use command:
```console
python -m pybex
```
```
bex> say(99,
... "bottles of beer",
... "on the wall.")
99 bottles of beer on the wall.
bex> if(1, "pi", 3.1415)
'pi'
```
## Interpret from the file
use command:
```console
python -m pybex
```
(replace with path of your script file)
```
say(if(
int(input()),
"non-zero input",
"zero input"
))
```
## Examples
You can see more code examples in [`tests`](/tests) folder
### How to add my own functions?
Don't be scared, it's quite easy!
Here you can see how to create two functions `this_is` and `ninja`:
Run this code and see the output for yourself!
```python
from typing import List
import random
import pybex as bex
bad_code = True
@bex.Function.py # bex_this_is.name == "this_is"
def bex_this_is(ctx: bex.EvalContext, exprs: List[bex.Expr]) -> bex.Expr:
bex.assert_args_amount(ctx, exprs, "==", 0)
global bad_code
if bad_code:
print("sparta")
else:
print("no, this is patrick")
bad_code = not bad_code
return bex.Nothing
BYTES = [108, 105, 103, 109, 97]
@bex.Function.named_py("ninja") # hidden_name.name == "ninja"
def hidden_name(ctx: bex.EvalContext, exprs: List[bex.Expr]) -> bex.Expr:
bex.assert_args_amount(ctx, exprs, "==", 1)
arg = bex.assert_arg_type(ctx, exprs[0], 0, bex.String)
if arg.value == "has died of":
return bex.String(bytes(BYTES).decode())
as_list = list(arg.value)
random.shuffle(as_list)
return bex.String("".join(as_list))
ctx = bex.EvalContext(bex.Scope.from_funcions(
bex_this_is,
hidden_name,
))
code = """
this_is()
this_is()
this_is()
this_is()
this_is()
this_is()
say(ninja("12345"))
say(ninja("superman"))
say(ninja("has died of"))
"""
# interpret the source code
bex.interpret(bex.parse_source(code), ctx)
# or run an interactive console app
# bex.run_interactive_mode(ctx)
```
---
[Inspiration for the project](https://gitlab.com/tsoding/bex)