mirror of
https://github.com/Relintai/pandemonium_engine.git
synced 2024-12-23 20:36:53 +01:00
111 lines
3.8 KiB
Python
111 lines
3.8 KiB
Python
# MIT License
|
|
#
|
|
# Copyright The SCons Foundation
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining
|
|
# a copy of this software and associated documentation files (the
|
|
# "Software"), to deal in the Software without restriction, including
|
|
# without limitation the rights to use, copy, modify, merge, publish,
|
|
# distribute, sublicense, and/or sell copies of the Software, and to
|
|
# permit persons to whom the Software is furnished to do so, subject to
|
|
# the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included
|
|
# in all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
|
|
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
|
|
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
"""Variable type for enumeration Variables.
|
|
|
|
Enumeration variables allow selection of one from a specified set of values.
|
|
|
|
Usage example::
|
|
|
|
opts = Variables()
|
|
opts.Add(
|
|
EnumVariable(
|
|
'debug',
|
|
help='debug output and symbols',
|
|
default='no',
|
|
allowed_values=('yes', 'no', 'full'),
|
|
map={},
|
|
ignorecase=2,
|
|
)
|
|
)
|
|
...
|
|
if env['debug'] == 'full':
|
|
...
|
|
"""
|
|
|
|
from typing import Tuple, Callable
|
|
|
|
import SCons.Errors
|
|
|
|
__all__ = ['EnumVariable',]
|
|
|
|
|
|
def _validator(key, val, env, vals) -> None:
|
|
if val not in vals:
|
|
raise SCons.Errors.UserError(
|
|
'Invalid value for option %s: %s. Valid values are: %s' % (key, val, vals))
|
|
|
|
|
|
def EnumVariable(key, help, default, allowed_values, map={}, ignorecase=0) -> Tuple[str, str, str, Callable, Callable]:
|
|
"""Return a tuple describing an enumaration SCons Variable.
|
|
|
|
The input parameters describe an option with only certain values
|
|
allowed. Returns A tuple including an appropriate converter and
|
|
validator. The result is usable as input to :meth:`Add`.
|
|
|
|
*key* and *default* are passed directly on to :meth:`Add`.
|
|
|
|
*help* is the descriptive part of the help text,
|
|
and will have the allowed values automatically appended.
|
|
|
|
*allowed_values* is a list of strings, which are the allowed values
|
|
for this option.
|
|
|
|
The *map*-dictionary may be used for converting the input value
|
|
into canonical values (e.g. for aliases).
|
|
|
|
The value of *ignorecase* defines the behaviour of the validator:
|
|
|
|
* 0: the validator/converter are case-sensitive.
|
|
* 1: the validator/converter are case-insensitive.
|
|
* 2: the validator/converter is case-insensitive and the
|
|
converted value will always be lower-case.
|
|
|
|
The *validator* tests whether the value is in the list of allowed values.
|
|
The *converter* converts input values according to the given
|
|
*map*-dictionary (unmapped input values are returned unchanged).
|
|
"""
|
|
|
|
help = '%s (%s)' % (help, '|'.join(allowed_values))
|
|
# define validator
|
|
if ignorecase:
|
|
validator = lambda key, val, env: \
|
|
_validator(key, val.lower(), env, allowed_values)
|
|
else:
|
|
validator = lambda key, val, env: \
|
|
_validator(key, val, env, allowed_values)
|
|
# define converter
|
|
if ignorecase == 2:
|
|
converter = lambda val: map.get(val.lower(), val).lower()
|
|
elif ignorecase == 1:
|
|
converter = lambda val: map.get(val.lower(), val)
|
|
else:
|
|
converter = lambda val: map.get(val, val)
|
|
return (key, help, default, validator, converter)
|
|
|
|
# Local Variables:
|
|
# tab-width:4
|
|
# indent-tabs-mode:nil
|
|
# End:
|
|
# vim: set expandtab tabstop=4 shiftwidth=4:
|