1 files changed, 27 insertions, 0 deletions
diff --git a/config_match_license.go b/config_match_license.go
index 11e09fe..c027019 100644
--- a/config_match_license.go
+++ b/config_match_license.go
@@ -3,7 +3,15 @@
 
 package spdxconv
 
+import (
+	"fmt"
+	"regexp"
+)
+
 type configMatchLicense struct {
+	rePattern    *regexp.Regexp
+	reDeleteLine []*regexp.Regexp
+
 	// Pattern to be searched in file.
 	Pattern string `ini:"match-license::pattern"`
 
@@ -21,3 +29,22 @@ type configMatchLicense struct {
 	// be deleted.
 	DeleteMatch bool `ini:"match-license::delete_match"`
 }
+
+func (cml *configMatchLicense) 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
+}