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42 lines
1.2 KiB
Go
42 lines
1.2 KiB
Go
// This file is Free Software under the Apache-2.0 License
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// without warranty, see README.md and LICENSES/Apache-2.0.txt for details.
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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// SPDX-FileCopyrightText: 2023 German Federal Office for Information Security (BSI) <https://www.bsi.bund.de>
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// Software-Engineering: 2023 Intevation GmbH <https://intevation.de>
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// Package filter implements helps to filter advisories.
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package filter
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import (
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"fmt"
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"regexp"
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)
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// PatternMatcher is a list of regular expressions.
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type PatternMatcher []*regexp.Regexp
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// NewPatternMatcher compiles a new list of regular expression from
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// a given list of strings.
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func NewPatternMatcher(patterns []string) (PatternMatcher, error) {
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pm := make(PatternMatcher, 0, len(patterns))
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for _, pattern := range patterns {
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expr, err := regexp.Compile(pattern)
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if err != nil {
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return nil, fmt.Errorf("invalid ignore pattern: %w", err)
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}
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pm = append(pm, expr)
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}
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return pm, nil
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}
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// Matches returns true if the given string matches any of the expressions.
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func (pm PatternMatcher) Matches(s string) bool {
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for _, expr := range pm {
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if expr.MatchString(s) {
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return true
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}
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}
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return false
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}
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