1 files changed, 46 insertions, 0 deletions
diff --git a/match_license.go b/match_license.go
new file mode 100644
index 0000000..1d15d7f
--- /dev/null
+++ b/match_license.go
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-FileCopyrightText: 2026 M. Shulhan <ms@kilabit.info>
+
+package spdxconv
+
+import (
+	"fmt"
+	"regexp"
+)
+
+type matchLicense struct {
+	rePattern    *regexp.Regexp
+	reDeleteLine []*regexp.Regexp
+
+	// Pattern to be searched in file.
+	Pattern string `ini:"match-license::pattern"`
+
+	// LicenseIdentifier that replace the default "license_identifier"
+	// value if Pattern match.
+	LicenseIdentifier string `ini:"match-license::license_identifier"`
+
+	// DeleteLinePattern zero or more pattern that will be search after
+	// Pattern match line.
+	// A line that match with this pattern will be deleted.
+	// An empty line stop the search.
+	DeleteLinePattern []string `ini:"match-license::delete_line_pattern"`
+}
+
+func (cml *matchLicense) init() (err error) {
+	var logp = `match-license`
+	if cml.Pattern != `` {
+		cml.rePattern, err = regexp.Compile(cml.Pattern)
+		if err != nil {
+			return fmt.Errorf(`%s: pattern %q: %w`, logp, cml.Pattern, err)
+		}
+	}
+	cml.reDeleteLine = make([]*regexp.Regexp, len(cml.DeleteLinePattern))
+	for x, pattern := range cml.DeleteLinePattern {
+		re, err := regexp.Compile(pattern)
+		if err != nil {
+			return fmt.Errorf(`%s: delete_line_pattern %q: %w`, logp, pattern, err)
+		}
+		cml.reDeleteLine[x] = re
+	}
+	return nil
+}