# Source code for pygrass.modules.interface.read

    """
    Created on Tue Apr  2 18:30:34 2013

    @author: pietro
    """
    from __future__ import (
        nested_scopes,
        generators,
        division,
        absolute_import,
        with_statement,
        print_function,
        unicode_literals,
    )

    def do_nothing(p):
        return p

    def get_None(p):
        return None

    def get_dict(p):
        return dict(p.items())

    def get_values(p):
        return [e.text.strip() for e in p.findall("value/name")]

    def read_text(p):
        return p.text.strip()

    def read_keydesc(par):
        name = par.text.strip()
        items = [e.text.strip() for e in par.findall("item")]
        return name, tuple(items) if len(items) > 1 else None

    GETFROMTAG = {
        "description": read_text,
        "keydesc": read_keydesc,
        "gisprompt": get_dict,
        "default": read_text,
        "values": get_values,
        "value": get_None,
        "guisection": read_text,
        "label": read_text,
        "suppress_required": get_None,
        "keywords": read_text,
        "guidependency": read_text,
        "rules": get_None,
    }

    GETTYPE = {
        "string": str,
        "integer": int,
        "float": float,
        "double": float,
        "file": str,
        "all": do_nothing,
    }

    def element2dict(xparameter):
        diz = dict(xparameter.items())
        for p in xparameter:
            if p.tag in GETFROMTAG:
                diz[p.tag] = GETFROMTAG[p.tag](p)
            else:
                print("New tag: %s, ignored" % p.tag)
        return diz

    # dictionary used to create docstring for the objects
    DOC = {
        # ------------------------------------------------------------
        # head
        "head": """{cmd_name}({cmd_params})

    Parameters
    ----------

    """,
        # ------------------------------------------------------------
        # param
        "param": """{name}: {default}{required}{multi}{ptype}
        {description}{values}{keydescvalues}""",
        # ------------------------------------------------------------
        # flag_head
        "flag_head": """
    Flags
    ------
    """,
        # ------------------------------------------------------------
        # flag
        "flag": """{name}: {default}, {supress}
        {description}""",
        # ------------------------------------------------------------
        # foot
        "foot": """
    Special Parameters
    ------------------

    The Module class have some optional parameters which are distinct using a final
    underscore.

    run_: True, optional
        If True execute the module.
    finish_: True, optional
        If True wait until the end of the module execution, and store the module
        outputs into stdout, stderr attributes of the class.
    stdin_: PIPE, optional
        Set the standard input.
    env_: dictionary, optional
        Set the environment variables.
    """,
    }

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