Invalid UVL files

[h3ssto]

According to featjar, the following files of the benchmark are not valid UVL:

Double-quoted string attribute value

A feature carries a string-valued attribute written with double quotes, e.g.,
{featureDescription__ "..."}. Per the UVL language-levels paper a string
value must be single-quoted ('...'); "..." is identifier syntax.

Minimal: A {description "x"} fails; A {description 'x'} is accepted.

./feature_models/uvl/automotive/automotive01/Kowal2016.uvl
./feature_models/uvl/finance/FinancialServices01/Nieke2018-2017-05-22.uvl
./feature_models/uvl/finance/FinancialServices01/Nieke2018-2017-09-28.uvl
./feature_models/uvl/finance/FinancialServices01/Nieke2018-2017-10-20.uvl
./feature_models/uvl/finance/FinancialServices01/Nieke2018-2017-11-20.uvl
./feature_models/uvl/finance/FinancialServices01/Nieke2018-2017-12-22.uvl
./feature_models/uvl/finance/FinancialServices01/Nieke2018-2018-01-23.uvl
./feature_models/uvl/finance/FinancialServices01/Nieke2018-2018-02-20.uvl
./feature_models/uvl/finance/FinancialServices01/Nieke2018-2018-03-26.uvl
./feature_models/uvl/finance/FinancialServices01/Nieke2018-2018-04-23.uvl
./feature_models/uvl/finance/FinancialServices01/Nieke2018-2018-05-09.uvl

Feature named Type

Type is a reserved keyword in the grammar
(mismatched input 'Type' expecting {'String','Integer','Real','Boolean',ID_NOT_STRICT,ID_STRICT}).

./feature_models/uvl/e_commerce/e_shop/Lau2006.uvl

Single quote inside a double-quoted feature name

A feature whose name is a double-quoted identifier containing a ', e.g.,
"Compare-Name-'CONFIG_BOARD_NAME'-,". featjar parses the declaration
and the constraint reference to different strings, then fails the
cross-reference check:
Feature "..." is referenced in a constraint ... but does not exist as feature in the tree!

Minimal: feature "a'b" used in a constraint

./feature_models/uvl/systems_software/soletta/Pett2023-2016-05-25_19-04-11.uvl

Line 21: "Compare-Name-'CONFIG_BOARD_NAME'-,"

./feature_models/uvl/systems_software/soletta/Pett2023-2016-06-07_14-12-02.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-06-07_14-19-55.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-06-13_14-56-51.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-06-14_11-06-45.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-06-17_16-06-07.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-06-27_14-59-46.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-06-27_15-09-30.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-06-28_13-27-17.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-06-28_17-43-56.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-07-01_15-00-13.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-07-19_18-32-56.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-07-22_09-19-36.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-08-16_16-45-48.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-10-31_22-17-41.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-11-01_10-03-33.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-11-04_20-52-57.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2016-11-22_03-38-15.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2017-03-01_15-25-44.uvl
./feature_models/uvl/systems_software/soletta/Pett2023-2017-03-09_21-02-40.uvl

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See also FeatureIDE/FeatJAR#13