fix title voor HLN en Parool; helperfuncties naar internal/util

internal/util/util.go

@@ -0,0 +1,41 @@
+package util
+
+import (
+	e "codeberg.org/pebbe/errors"
+
+	"fmt"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+)
+
+var (
+	p     = e.PanicErr
+	reEOL = regexp.MustCompile(`[.!?]['"”’]?$`)
+)
+
+func AddEnd(s string) string {
+	s = strings.TrimSpace(s)
+	if s == "" || reEOL.MatchString(s) {
+		return s
+	}
+	return s + ".\n"
+}
+
+func FixSpace(s string) string {
+	return strings.Join(strings.Fields(s), " ")
+}
+
+func MkLock(filename string) {
+	pid := os.Getpid()
+	link := fmt.Sprintf("%s.%d", filepath.Base(filename), pid)
+	p(os.Symlink(link, filename))
+
+	name, err := os.Readlink(filename)
+	p(err)
+
+	if name != link {
+		p(fmt.Errorf("wrong lock name %q, should be %q", name, link))
+	}
+}