Change exclude string to array of strings.

getters.go

@@ -47,7 +47,7 @@ func newParsedFile(file *ast.File, fset *token.FileSet) (*parsedFile, error) {
 }
 
 // getComments extracts comments from a file.
-func (pf *parsedFile) getComments(scope Scope, exclude *regexp.Regexp) []comment {
+func (pf *parsedFile) getComments(scope Scope, exclude []*regexp.Regexp) []comment {
 	if len(pf.file.Comments) == 0 {
 		return nil
 	}
@@ -79,7 +79,7 @@ func (pf *parsedFile) getComments(scope Scope, exclude *regexp.Regexp) []comment
 
 // getBlockComments gets comments from the inside of top level blocks:
 // var (...), const (...).
-func (pf *parsedFile) getBlockComments(exclude *regexp.Regexp) []comment {
+func (pf *parsedFile) getBlockComments(exclude []*regexp.Regexp) []comment {
 	var comments []comment
 	for _, decl := range pf.file.Decls {
 		d, ok := decl.(*ast.GenDecl)
@@ -118,7 +118,7 @@ func (pf *parsedFile) getBlockComments(exclude *regexp.Regexp) []comment {
 }
 
 // getTopLevelComments gets all top level comments.
-func (pf *parsedFile) getTopLevelComments(exclude *regexp.Regexp) []comment {
+func (pf *parsedFile) getTopLevelComments(exclude []*regexp.Regexp) []comment {
 	var comments []comment // nolint: prealloc
 	for _, c := range pf.file.Comments {
 		if c == nil || len(c.List) == 0 {
@@ -139,7 +139,7 @@ func (pf *parsedFile) getTopLevelComments(exclude *regexp.Regexp) []comment {
 }
 
 // getDeclarationComments gets top level declaration comments.
-func (pf *parsedFile) getDeclarationComments(exclude *regexp.Regexp) []comment {
+func (pf *parsedFile) getDeclarationComments(exclude []*regexp.Regexp) []comment {
 	var comments []comment // nolint: prealloc
 	for _, decl := range pf.file.Decls {
 		var cg *ast.CommentGroup
@@ -166,7 +166,7 @@ func (pf *parsedFile) getDeclarationComments(exclude *regexp.Regexp) []comment {
 }
 
 // getAllComments gets every single comment from the file.
-func (pf *parsedFile) getAllComments(exclude *regexp.Regexp) []comment {
+func (pf *parsedFile) getAllComments(exclude []*regexp.Regexp) []comment {
 	var comments []comment //nolint: prealloc
 	for _, c := range pf.file.Comments {
 		if c == nil || len(c.List) == 0 {
@@ -188,7 +188,7 @@ func (pf *parsedFile) getAllComments(exclude *regexp.Regexp) []comment {
 // special lines (e.g., tags or indented code examples), they are replaced
 // with `specialReplacer` to skip checks for it.
 // The result can be multiline.
-func getText(comment *ast.CommentGroup, exclude *regexp.Regexp) (s string) {
+func getText(comment *ast.CommentGroup, exclude []*regexp.Regexp) (s string) {
 	if len(comment.List) == 1 &&
 		strings.HasPrefix(comment.List[0].Text, "/*") &&
 		isSpecialBlock(comment.List[0].Text) {
@@ -211,7 +211,7 @@ func getText(comment *ast.CommentGroup, exclude *regexp.Regexp) (s string) {
 			if !isBlock {
 				line = strings.TrimPrefix(line, "//")
 			}
-			if exclude != nil && exclude.MatchString(line) {
+			if matchAny(line, exclude) {
 				s += specialReplacer + "\n"
 				continue
 			}
@@ -245,3 +245,13 @@ func setDecl(comments, decl []comment) {
 		}
 	}
 }
+
+// matchAny checks if string matches any of given regexps.
+func matchAny(s string, rr []*regexp.Regexp) bool {
+	for _, re := range rr {
+		if re.MatchString(s) {
+			return true
+		}
+	}
+	return false
+}

getters_test.go

@@ -223,7 +223,11 @@ func TestGetText(t *testing.T) {
 	for _, tt := range testCases {
 		tt := tt
 		t.Run(tt.name, func(t *testing.T) {
-			if text := getText(tt.comment, tt.exclude); text != tt.text {
+			var re []*regexp.Regexp
+			if tt.exclude != nil {
+				re = []*regexp.Regexp{tt.exclude}
+			}
+			if text := getText(tt.comment, re); text != tt.text {
 				t.Fatalf("Wrong text\n  expected: '%s'\n       got: '%s'", tt.text, text)
 			}
 		})

godot.go

@@ -48,9 +48,9 @@ func Run(file *ast.File, fset *token.FileSet, settings Settings) ([]Issue, error
 		return nil, fmt.Errorf("parse input file: %v", err)
 	}
 
-	var exclude *regexp.Regexp
-	if settings.Exclude != "" {
-		exclude, err = regexp.Compile(settings.Exclude)
+	exclude := make([]*regexp.Regexp, len(settings.Exclude))
+	for i := 0; i < len(settings.Exclude); i++ {
+		exclude[i], err = regexp.Compile(settings.Exclude[i])
 		if err != nil {
 			return nil, fmt.Errorf("invalid regexp: %v", err)
 		}

godot_test.go

@@ -11,7 +11,7 @@ import (
 )
 
 // testExclude is a test regexp to exclude lines that starts with @ symbol.
-const testExclude = "^ ?@"
+var testExclude = []string{"^ ?@"}
 
 func TestRun(t *testing.T) {
 	testFile := filepath.Join("testdata", "check", "main.go")
@@ -24,7 +24,7 @@ func TestRun(t *testing.T) {
 	// Test invalid regexp
 	_, err = Run(f, fset, Settings{
 		Scope:   DeclScope,
-		Exclude: "[",
+		Exclude: []string{"["},
 		Period:  true,
 		Capital: true,
 	})

settings.go

@@ -6,7 +6,7 @@ type Settings struct {
 	Scope Scope
 
 	// Regexp for excluding particular comment lines from check.
-	Exclude string
+	Exclude []string
 
 	// Check periods at the end of sentences.
 	Period bool