all: split the delete_line_pattern into before and after

While at it, also add configuration for delete line before and after
for match-copyright section.

1 files changed, 22 insertions, 0 deletions

diff --git a/match_copyright.go b/match_copyright.go
index aa35950..723c63f 100644
--- a/match_copyright.go
+++ b/match_copyright.go
@@ -11,12 +11,18 @@ import (
 type matchCopyright struct {
 	rePattern *regexp.Regexp
 
+	reDeleteLineBefore []*regexp.Regexp
+	reDeleteLineAfter  []*regexp.Regexp
+
 	// Pattern to be searched in file.
 	Pattern string `ini:"match-copyright::pattern"`
 
 	year    string
 	author  string
 	contact string
+
+	DeleteLineBefore []string `ini:"match-copyright::delete_line_before"`
+	DeleteLineAfter  []string `ini:"match-copyright::delete_line_after"`
 }
 
 func (cmc *matchCopyright) init() (err error) {
@@ -27,6 +33,22 @@ func (cmc *matchCopyright) init() (err error) {
 			return fmt.Errorf(`%s: pattern %q: %w`, logp, cmc.Pattern, err)
 		}
 	}
+	cmc.reDeleteLineBefore = make([]*regexp.Regexp, len(cmc.DeleteLineBefore))
+	for x, pattern := range cmc.DeleteLineBefore {
+		re, err := regexp.Compile(pattern)
+		if err != nil {
+			return fmt.Errorf(`%s: delete_line_before %q: %w`, logp, pattern, err)
+		}
+		cmc.reDeleteLineBefore[x] = re
+	}
+	cmc.reDeleteLineAfter = make([]*regexp.Regexp, len(cmc.DeleteLineAfter))
+	for x, pattern := range cmc.DeleteLineAfter {
+		re, err := regexp.Compile(pattern)
+		if err != nil {
+			return fmt.Errorf(`%s: delete_line_after %q: %w`, logp, pattern, err)
+		}
+		cmc.reDeleteLineAfter[x] = re
+	}
 	return nil
 }