to_bash.py

"""
provides string_to_bash utilities
"""

from . import core
from . import utils


_get_function_name = utils.get_function_name_fun()


def atom_to_code(in_atom: core.Atom) -> str:
    """
    returns a string/piece of bash code resulting in printing the
    in_atom.atom_char to the standard output
    """
    special_chars = {
        r'"': r"\"",
        "\\": "\\\\",
        "`": "\\`",
        "\n": "\\n",
        "\t": "\\t",
        "%": "%%",
    }
    res_char = special_chars.get(in_atom.atom_char, in_atom.atom_char)
    return f'printf "{res_char}"'


_function_call_str = utils.get_function_call_str_fun(_get_function_name, "", "")

_call_function_or_atom = utils.get_call_function_or_atom(
    atom_to_code, _function_call_str
)


_body_to_str = utils.get_body_to_str(
    "", "\n    ", _call_function_or_atom, "", "\n    true"
)


def _merge_to_full_function(in_function_name, in_function_body):
    return f"{in_function_name} ()\n{{{in_function_body}\n}}\n"


_function_to_code = utils.get_function_to_code(
    _get_function_name, _body_to_str, _merge_to_full_function
)


def _main_call_to_code(in_initial_call, **kwargs):
    res = ""
    if in_initial_call is not None:
        res = _call_function_or_atom(in_initial_call, **kwargs)
    return res


def _join_to_final(main_call, function_definitions, **_kwargs):
    res = "\n\n".join(function_definitions + [main_call])
    if res:
        res = "\n\n" + res
    res += "\n"
    return "#!/usr/bin/env bash\n\nset -euo pipefail" + res


proc_printer_program, proc = utils.get_all_proc_functions(
    _main_call_to_code, _function_to_code, _join_to_final
)