song/StringFilter: add flag substring
Prepare to stop using substrings for filter expressions.
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@ -32,8 +32,12 @@ StringFilter::Match(const char *s) const noexcept
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#endif
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if (fold_case) {
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return fold_case.IsIn(s);
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return substring
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? fold_case.IsIn(s)
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: fold_case == s;
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} else {
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return value == s;
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return substring
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? StringFind(s, value.c_str()) != nullptr
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: value == s;
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}
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}
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@ -33,13 +33,19 @@ class StringFilter {
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*/
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IcuCompare fold_case;
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/**
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* Search for substrings instead of matching the whole string?
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*/
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bool substring;
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public:
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template<typename V>
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StringFilter(V &&_value, bool _fold_case)
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:value(std::forward<V>(_value)),
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fold_case(_fold_case
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? IcuCompare(value.c_str())
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: IcuCompare()) {}
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: IcuCompare()),
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substring(_fold_case) {}
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bool empty() const noexcept {
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return value.empty();
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