EnumVariable.py (scons-4.2.0) | : | EnumVariable.py (SCons-4.3.0) | ||
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skipping to change at line 24 | skipping to change at line 24 | |||
# in all copies or substantial portions of the Software. | # in all copies or substantial portions of the Software. | |||
# | # | |||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY | # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY | |||
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE | # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE | |||
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |||
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | |||
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | |||
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | |||
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |||
"""Option type for enumeration Variables. | """Variable type for enumeration Variables. | |||
This file defines the option type for SCons allowing only specified | Enumeration variables allow selection of one from a specified set of values. | |||
input-values. | ||||
Usage example:: | Usage example:: | |||
opts = Variables() | opts = Variables() | |||
opts.Add( | opts.Add( | |||
EnumVariable( | EnumVariable( | |||
'debug', | 'debug', | |||
'debug output and symbols', | help='debug output and symbols', | |||
'no', | default='no', | |||
allowed_values=('yes', 'no', 'full'), | allowed_values=('yes', 'no', 'full'), | |||
map={}, | map={}, | |||
ignorecase=2, | ignorecase=2, | |||
) | ) | |||
) | ) | |||
... | ... | |||
if env['debug'] == 'full': | if env['debug'] == 'full': | |||
... | ... | |||
""" | """ | |||
__all__ = ['EnumVariable',] | from typing import Tuple, Callable | |||
import SCons.Errors | import SCons.Errors | |||
def _validator(key, val, env, vals): | __all__ = ['EnumVariable',] | |||
def _validator(key, val, env, vals) -> None: | ||||
if val not in vals: | if val not in vals: | |||
raise SCons.Errors.UserError( | raise SCons.Errors.UserError( | |||
'Invalid value for option %s: %s. Valid values are: %s' % (key, val , vals)) | 'Invalid value for option %s: %s. Valid values are: %s' % (key, val , vals)) | |||
def EnumVariable(key, help, default, allowed_values, map={}, ignorecase=0): | def EnumVariable(key, help, default, allowed_values, map={}, ignorecase=0) -> Tu | |||
""" | ple[str, str, str, Callable, Callable]: | |||
"""Return a tuple describing an enumaration SCons Variable. | ||||
The input parameters describe an option with only certain values | The input parameters describe an option with only certain values | |||
allowed. They are returned with an appropriate converter and | allowed. Returns A tuple including an appropriate converter and | |||
validator appended. The result is usable for input to | validator. The result is usable as input to :meth:`Add`. | |||
Variables.Add(). | ||||
'key' and 'default' are the values to be passed on to Variables.Add(). | *key* and *default* are passed directly on to :meth:`Add`. | |||
'help' will be appended by the allowed values automatically | *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 allowed as values | *allowed_values* is a list of strings, which are the allowed values | |||
for this option. | for this option. | |||
The 'map'-dictionary may be used for converting the input value | The *map*-dictionary may be used for converting the input value | |||
into canonical values (e.g. for aliases). | into canonical values (e.g. for aliases). | |||
'ignorecase' defines the behaviour of the validator: | The value of *ignorecase* defines the behaviour of the validator: | |||
If ignorecase == 0, the validator/converter are case-sensitive. | ||||
If ignorecase == 1, the validator/converter are case-insensitive. | ||||
If ignorecase == 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. Th | * 0: the validator/converter are case-sensitive. | |||
e 'converter' converts input values | * 1: the validator/converter are case-insensitive. | |||
according to the given 'map'-dictionary (unmapped input values are returned | * 2: the validator/converter is case-insensitive and the | |||
unchanged). | 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)) | help = '%s (%s)' % (help, '|'.join(allowed_values)) | |||
# define validator | # define validator | |||
if ignorecase >= 1: | if ignorecase: | |||
validator = lambda key, val, env: \ | validator = lambda key, val, env: \ | |||
_validator(key, val.lower(), env, allowed_values) | _validator(key, val.lower(), env, allowed_values) | |||
else: | else: | |||
validator = lambda key, val, env: \ | validator = lambda key, val, env: \ | |||
_validator(key, val, env, allowed_values) | _validator(key, val, env, allowed_values) | |||
# define converter | # define converter | |||
if ignorecase == 2: | if ignorecase == 2: | |||
converter = lambda val: map.get(val.lower(), val).lower() | converter = lambda val: map.get(val.lower(), val).lower() | |||
elif ignorecase == 1: | elif ignorecase == 1: | |||
converter = lambda val: map.get(val.lower(), val) | converter = lambda val: map.get(val.lower(), val) | |||
End of changes. 14 change blocks. | ||||
27 lines changed or deleted | 29 lines changed or added |