lion.py

#!ENV/bin/python

import readline
import textx as tx
import templateEngine as te
from textx.model import get_children

def save_code(pycode):
    with open("pycode.py","w+") as pyfile:
        pyfile.write(pycode)

try : 
    readline.read_history_file('.lion_history')
except FileNotFoundError:
    open('.lion_history', 'w').close()

readline.set_history_length(1000)
mm = tx.metamodel_from_file('LION_META_MODEL.tx')

AllofCode = []
pycode = te.genDependenciesCode()
exec(pycode)

while(True):
    temp = AllofCode.copy()
    try : 
        c = input("lion> ")
        while(True) :
            if ';' in c:
                break
            c += input("...    ")
        temp.append(c)
        m = mm.model_from_str('\n'.join(temp))
        code = te.genCode(m.rules[-1])
        exec(code)
        pycode += code
        AllofCode.append(c)
        readline.write_history_file('.lion_history')
    except EOFError :
        print("\r   bye :(")
        save_code(pycode)
        break
    except KeyboardInterrupt:
        print("\ntype exit() or EOF to quit!")
    except FileNotFoundError as e:
        print(f'''The file "{e.args[1].split("'")[1]}" does not exist!''')
    except tx.exceptions.TextXSyntaxError as e:
        print(f'''SyntaxError: name '{e.message.split("'")[-2]}' is not defined''')
    except tx.exceptions.TextXSemanticError as e:
        print(f'''SemanticError: '{e.message}' is not defined''')
    except Exception as e:
        print(e)